diff options
Diffstat (limited to 'arch/powerpc/platforms')
103 files changed, 2179 insertions, 10267 deletions
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig index fcf6bf2..2e4e64a 100644 --- a/arch/powerpc/platforms/44x/Kconfig +++ b/arch/powerpc/platforms/44x/Kconfig @@ -23,6 +23,7 @@ config BLUESTONE default n select PPC44x_SIMPLE select APM821xx + select PPC4xx_PCI_EXPRESS select IBM_EMAC_RGMII help This option enables support for the APM APM821xx Evaluation board. diff --git a/arch/powerpc/platforms/44x/currituck.c b/arch/powerpc/platforms/44x/currituck.c index 3f6229b..583e67f 100644 --- a/arch/powerpc/platforms/44x/currituck.c +++ b/arch/powerpc/platforms/44x/currituck.c @@ -83,7 +83,7 @@ static void __init ppc47x_init_irq(void) * device-tree, just pass 0 to all arguments */ struct mpic *mpic = - mpic_alloc(np, 0, 0, 0, 0, " MPIC "); + mpic_alloc(np, 0, MPIC_NO_RESET, 0, 0, " MPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); ppc_md.get_irq = mpic_get_irq; diff --git a/arch/powerpc/platforms/44x/iss4xx.c b/arch/powerpc/platforms/44x/iss4xx.c index 5b8cdbb..a28a862 100644 --- a/arch/powerpc/platforms/44x/iss4xx.c +++ b/arch/powerpc/platforms/44x/iss4xx.c @@ -71,8 +71,7 @@ static void __init iss4xx_init_irq(void) /* The MPIC driver will get everything it needs from the * device-tree, just pass 0 to all arguments */ - struct mpic *mpic = mpic_alloc(np, 0, 0, 0, 0, - " MPIC "); + struct mpic *mpic = mpic_alloc(np, 0, MPIC_NO_RESET, 0, 0, " MPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); ppc_md.get_irq = mpic_get_irq; diff --git a/arch/powerpc/platforms/44x/ppc44x_simple.c b/arch/powerpc/platforms/44x/ppc44x_simple.c index 8d22027..3ffb915 100644 --- a/arch/powerpc/platforms/44x/ppc44x_simple.c +++ b/arch/powerpc/platforms/44x/ppc44x_simple.c @@ -52,7 +52,7 @@ machine_device_initcall(ppc44x_simple, ppc44x_device_probe); static char *board[] __initdata = { "amcc,arches", "amcc,bamboo", - "amcc,bluestone", + "apm,bluestone", "amcc,glacier", "ibm,ebony", "amcc,eiger", diff --git a/arch/powerpc/platforms/52xx/mpc5200_simple.c b/arch/powerpc/platforms/52xx/mpc5200_simple.c index 846b789..c0aa040 100644 --- a/arch/powerpc/platforms/52xx/mpc5200_simple.c +++ b/arch/powerpc/platforms/52xx/mpc5200_simple.c @@ -50,6 +50,7 @@ static void __init mpc5200_simple_setup_arch(void) /* list of the supported boards */ static const char *board[] __initdata = { + "anonymous,a4m072", "anon,charon", "intercontrol,digsy-mtc", "manroland,mucmc52", diff --git a/arch/powerpc/platforms/52xx/mpc52xx_common.c b/arch/powerpc/platforms/52xx/mpc52xx_common.c index 369fd54..d7e94f4 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_common.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_common.c @@ -98,13 +98,11 @@ struct mpc52xx_gpio_wkup __iomem *wkup_gpio; * of the localplus bus to the of_platform * bus. */ -void __init -mpc52xx_declare_of_platform_devices(void) +void __init mpc52xx_declare_of_platform_devices(void) { - /* Find every child of the SOC node and add it to of_platform */ - if (of_platform_bus_probe(NULL, mpc52xx_bus_ids, NULL)) - printk(KERN_ERR __FILE__ ": " - "Error while probing of_platform bus\n"); + /* Find all the 'platform' devices and register them. */ + if (of_platform_populate(NULL, mpc52xx_bus_ids, NULL, NULL)) + pr_err(__FILE__ ": Error while populating devices from DT\n"); } /* diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index d7946be2..f000d81 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -6,6 +6,7 @@ menuconfig FSL_SOC_BOOKE select MPIC select PPC_PCI_CHOICE select FSL_PCI if PCI + select SERIAL_8250_EXTENDED if SERIAL_8250 select SERIAL_8250_SHARE_IRQ if SERIAL_8250 default y @@ -13,6 +14,15 @@ if FSL_SOC_BOOKE if PPC32 +config FSL_85XX_CACHE_SRAM + bool + select PPC_LIB_RHEAP + help + When selected, this option enables cache-sram support + for memory allocation on P1/P2 QorIQ platforms. + cache-sram-size and cache-sram-offset kernel boot + parameters should be passed when this option is enabled. + config MPC8540_ADS bool "Freescale MPC8540 ADS" select DEFAULT_UIMAGE @@ -30,6 +40,7 @@ config MPC85xx_CDS bool "Freescale MPC85xx CDS" select DEFAULT_UIMAGE select PPC_I8259 + select HAS_RAPIDIO help This option enables support for the MPC85xx CDS board @@ -80,7 +91,6 @@ config P1010_RDB config P1022_DS bool "Freescale P1022 DS" select DEFAULT_UIMAGE - select PHYS_64BIT # The DTS has 36-bit addresses select SWIOTLB help This option enables support for the Freescale P1022DS reference board. @@ -171,6 +181,21 @@ config SBC8560 help This option enables support for the Wind River SBC8560 board +config GE_IMP3A + bool "GE Intelligent Platforms IMP3A" + select DEFAULT_UIMAGE + select SWIOTLB + select MMIO_NVRAM + select GENERIC_GPIO + select ARCH_REQUIRE_GPIOLIB + select GE_FPGA + help + This option enables support for the GE Intelligent Platforms IMP3A + board. + + This board is a 3U CompactPCI Single Board Computer with a Freescale + P2020 processor. + config P2041_RDB bool "Freescale P2041 RDB" select DEFAULT_UIMAGE diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile index 9cb2d43..2125d4c 100644 --- a/arch/powerpc/platforms/85xx/Makefile +++ b/arch/powerpc/platforms/85xx/Makefile @@ -27,3 +27,4 @@ obj-$(CONFIG_SBC8548) += sbc8548.o obj-$(CONFIG_SOCRATES) += socrates.o socrates_fpga_pic.o obj-$(CONFIG_KSI8560) += ksi8560.o obj-$(CONFIG_XES_MPC85xx) += xes_mpc85xx.o +obj-$(CONFIG_GE_IMP3A) += ge_imp3a.o diff --git a/arch/powerpc/platforms/85xx/corenet_ds.c b/arch/powerpc/platforms/85xx/corenet_ds.c index 07e3e6c..df69e99 100644 --- a/arch/powerpc/platforms/85xx/corenet_ds.c +++ b/arch/powerpc/platforms/85xx/corenet_ds.c @@ -36,8 +36,8 @@ void __init corenet_ds_pic_init(void) { struct mpic *mpic; - unsigned int flags = MPIC_BIG_ENDIAN | - MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU; + unsigned int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU | + MPIC_NO_RESET; if (ppc_md.get_irq == mpic_get_coreint_irq) flags |= MPIC_ENABLE_COREINT; diff --git a/arch/powerpc/platforms/85xx/ge_imp3a.c b/arch/powerpc/platforms/85xx/ge_imp3a.c new file mode 100644 index 0000000..d50056f --- /dev/null +++ b/arch/powerpc/platforms/85xx/ge_imp3a.c @@ -0,0 +1,246 @@ +/* + * GE IMP3A Board Setup + * + * Author Martyn Welch <martyn.welch@ge.com> + * + * Copyright 2010 GE Intelligent Platforms Embedded Systems, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * Based on: mpc85xx_ds.c (MPC85xx DS Board Setup) + * Copyright 2007 Freescale Semiconductor Inc. + */ + +#include <linux/stddef.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/kdev_t.h> +#include <linux/delay.h> +#include <linux/seq_file.h> +#include <linux/interrupt.h> +#include <linux/of_platform.h> +#include <linux/memblock.h> + +#include <asm/system.h> +#include <asm/time.h> +#include <asm/machdep.h> +#include <asm/pci-bridge.h> +#include <mm/mmu_decl.h> +#include <asm/prom.h> +#include <asm/udbg.h> +#include <asm/mpic.h> +#include <asm/swiotlb.h> +#include <asm/nvram.h> + +#include <sysdev/fsl_soc.h> +#include <sysdev/fsl_pci.h> +#include "smp.h" + +#include "mpc85xx.h" +#include <sysdev/ge/ge_pic.h> + +void __iomem *imp3a_regs; + +void __init ge_imp3a_pic_init(void) +{ + struct mpic *mpic; + struct device_node *np; + struct device_node *cascade_node = NULL; + unsigned long root = of_get_flat_dt_root(); + + if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS-CAMP")) { + mpic = mpic_alloc(NULL, 0, + MPIC_NO_RESET | + MPIC_BIG_ENDIAN | + MPIC_SINGLE_DEST_CPU, + 0, 256, " OpenPIC "); + } else { + mpic = mpic_alloc(NULL, 0, + MPIC_BIG_ENDIAN | + MPIC_SINGLE_DEST_CPU, + 0, 256, " OpenPIC "); + } + + BUG_ON(mpic == NULL); + mpic_init(mpic); + /* + * There is a simple interrupt handler in the main FPGA, this needs + * to be cascaded into the MPIC + */ + for_each_node_by_type(np, "interrupt-controller") + if (of_device_is_compatible(np, "gef,fpga-pic-1.00")) { + cascade_node = np; + break; + } + + if (cascade_node == NULL) { + printk(KERN_WARNING "IMP3A: No FPGA PIC\n"); + return; + } + + gef_pic_init(cascade_node); + of_node_put(cascade_node); +} + +#ifdef CONFIG_PCI +static int primary_phb_addr; +#endif /* CONFIG_PCI */ + +/* + * Setup the architecture + */ +static void __init ge_imp3a_setup_arch(void) +{ + struct device_node *regs; +#ifdef CONFIG_PCI + struct device_node *np; + struct pci_controller *hose; +#endif + dma_addr_t max = 0xffffffff; + + if (ppc_md.progress) + ppc_md.progress("ge_imp3a_setup_arch()", 0); + +#ifdef CONFIG_PCI + for_each_node_by_type(np, "pci") { + if (of_device_is_compatible(np, "fsl,mpc8540-pci") || + of_device_is_compatible(np, "fsl,mpc8548-pcie") || + of_device_is_compatible(np, "fsl,p2020-pcie")) { + struct resource rsrc; + of_address_to_resource(np, 0, &rsrc); + if ((rsrc.start & 0xfffff) == primary_phb_addr) + fsl_add_bridge(np, 1); + else + fsl_add_bridge(np, 0); + + hose = pci_find_hose_for_OF_device(np); + max = min(max, hose->dma_window_base_cur + + hose->dma_window_size); + } + } +#endif + + mpc85xx_smp_init(); + +#ifdef CONFIG_SWIOTLB + if (memblock_end_of_DRAM() > max) { + ppc_swiotlb_enable = 1; + set_pci_dma_ops(&swiotlb_dma_ops); + ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; + } +#endif + + /* Remap basic board registers */ + regs = of_find_compatible_node(NULL, NULL, "ge,imp3a-fpga-regs"); + if (regs) { + imp3a_regs = of_iomap(regs, 0); + if (imp3a_regs == NULL) + printk(KERN_WARNING "Unable to map board registers\n"); + of_node_put(regs); + } + +#if defined(CONFIG_MMIO_NVRAM) + mmio_nvram_init(); +#endif + + printk(KERN_INFO "GE Intelligent Platforms IMP3A 3U cPCI SBC\n"); +} + +/* Return the PCB revision */ +static unsigned int ge_imp3a_get_pcb_rev(void) +{ + unsigned int reg; + + reg = ioread16(imp3a_regs); + return (reg >> 8) & 0xff; +} + +/* Return the board (software) revision */ +static unsigned int ge_imp3a_get_board_rev(void) +{ + unsigned int reg; + + reg = ioread16(imp3a_regs + 0x2); + return reg & 0xff; +} + +/* Return the FPGA revision */ +static unsigned int ge_imp3a_get_fpga_rev(void) +{ + unsigned int reg; + + reg = ioread16(imp3a_regs + 0x2); + return (reg >> 8) & 0xff; +} + +/* Return compactPCI Geographical Address */ +static unsigned int ge_imp3a_get_cpci_geo_addr(void) +{ + unsigned int reg; + + reg = ioread16(imp3a_regs + 0x6); + return (reg & 0x0f00) >> 8; +} + +/* Return compactPCI System Controller Status */ +static unsigned int ge_imp3a_get_cpci_is_syscon(void) +{ + unsigned int reg; + + reg = ioread16(imp3a_regs + 0x6); + return reg & (1 << 12); +} + +static void ge_imp3a_show_cpuinfo(struct seq_file *m) +{ + seq_printf(m, "Vendor\t\t: GE Intelligent Platforms\n"); + + seq_printf(m, "Revision\t: %u%c\n", ge_imp3a_get_pcb_rev(), + ('A' + ge_imp3a_get_board_rev() - 1)); + + seq_printf(m, "FPGA Revision\t: %u\n", ge_imp3a_get_fpga_rev()); + + seq_printf(m, "cPCI geo. addr\t: %u\n", ge_imp3a_get_cpci_geo_addr()); + + seq_printf(m, "cPCI syscon\t: %s\n", + ge_imp3a_get_cpci_is_syscon() ? "yes" : "no"); +} + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init ge_imp3a_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (of_flat_dt_is_compatible(root, "ge,IMP3A")) { +#ifdef CONFIG_PCI + primary_phb_addr = 0x9000; +#endif + return 1; + } + + return 0; +} + +machine_device_initcall(ge_imp3a, mpc85xx_common_publish_devices); + +machine_arch_initcall(ge_imp3a, swiotlb_setup_bus_notifier); + +define_machine(ge_imp3a) { + .name = "GE_IMP3A", + .probe = ge_imp3a_probe, + .setup_arch = ge_imp3a_setup_arch, + .init_IRQ = ge_imp3a_pic_init, + .show_cpuinfo = ge_imp3a_show_cpuinfo, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; diff --git a/arch/powerpc/platforms/85xx/ksi8560.c b/arch/powerpc/platforms/85xx/ksi8560.c index 20f75d7..60120e5 100644 --- a/arch/powerpc/platforms/85xx/ksi8560.c +++ b/arch/powerpc/platforms/85xx/ksi8560.c @@ -57,8 +57,7 @@ static void machine_restart(char *cmd) static void __init ksi8560_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); diff --git a/arch/powerpc/platforms/85xx/mpc8536_ds.c b/arch/powerpc/platforms/85xx/mpc8536_ds.c index cf26682..f588726 100644 --- a/arch/powerpc/platforms/85xx/mpc8536_ds.c +++ b/arch/powerpc/platforms/85xx/mpc8536_ds.c @@ -36,9 +36,7 @@ void __init mpc8536_ds_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | - MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c index 3bebb51..d19f675 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c @@ -50,8 +50,7 @@ static int mpc85xx_exclude_device(struct pci_controller *hose, static void __init mpc85xx_ads_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c index 40f03da..ab5f0bf1 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c @@ -3,7 +3,7 @@ * * Maintained by Kumar Gala (see MAINTAINERS for contact information) * - * Copyright 2005 Freescale Semiconductor Inc. + * Copyright 2005, 2011-2012 Freescale Semiconductor Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -48,17 +48,24 @@ #include "mpc85xx.h" -/* CADMUS info */ -/* xxx - galak, move into device tree */ -#define CADMUS_BASE (0xf8004000) -#define CADMUS_SIZE (256) -#define CM_VER (0) -#define CM_CSR (1) -#define CM_RST (2) - +/* + * The CDS board contains an FPGA/CPLD called "Cadmus", which collects + * various logic and performs system control functions. + * Here is the FPGA/CPLD register map. + */ +struct cadmus_reg { + u8 cm_ver; /* Board version */ + u8 cm_csr; /* General control/status */ + u8 cm_rst; /* Reset control */ + u8 cm_hsclk; /* High speed clock */ + u8 cm_hsxclk; /* High speed clock extended */ + u8 cm_led; /* LED data */ + u8 cm_pci; /* PCI control/status */ + u8 cm_dma; /* DMA control */ + u8 res[248]; /* Total 256 bytes */ +}; -static int cds_pci_slot = 2; -static volatile u8 *cadmus; +static struct cadmus_reg *cadmus; #ifdef CONFIG_PCI @@ -158,6 +165,33 @@ DECLARE_PCI_FIXUP_EARLY(0x1957, 0x3fff, skip_fake_bridge); DECLARE_PCI_FIXUP_EARLY(0x3fff, 0x1957, skip_fake_bridge); DECLARE_PCI_FIXUP_EARLY(0xff3f, 0x5719, skip_fake_bridge); +#define PCI_DEVICE_ID_IDT_TSI310 0x01a7 + +/* + * Fix Tsi310 PCI-X bridge resource. + * Force the bridge to open a window from 0x0000-0x1fff in PCI I/O space. + * This allows legacy I/O(i8259, etc) on the VIA southbridge to be accessed. + */ +void mpc85xx_cds_fixup_bus(struct pci_bus *bus) +{ + struct pci_dev *dev = bus->self; + struct resource *res = bus->resource[0]; + + if (dev != NULL && + dev->vendor == PCI_VENDOR_ID_IBM && + dev->device == PCI_DEVICE_ID_IDT_TSI310) { + if (res) { + res->start = 0; + res->end = 0x1fff; + res->flags = IORESOURCE_IO; + pr_info("mpc85xx_cds: PCI bridge resource fixup applied\n"); + pr_info("mpc85xx_cds: %pR\n", res); + } + } + + fsl_pcibios_fixup_bus(bus); +} + #ifdef CONFIG_PPC_I8259 static void mpc85xx_8259_cascade_handler(unsigned int irq, struct irq_desc *desc) @@ -188,8 +222,7 @@ static struct irqaction mpc85xxcds_8259_irqaction = { static void __init mpc85xx_cds_pic_init(void) { struct mpic *mpic; - mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); @@ -249,20 +282,30 @@ machine_device_initcall(mpc85xx_cds, mpc85xx_cds_8259_attach); */ static void __init mpc85xx_cds_setup_arch(void) { -#ifdef CONFIG_PCI struct device_node *np; -#endif + int cds_pci_slot; if (ppc_md.progress) ppc_md.progress("mpc85xx_cds_setup_arch()", 0); - cadmus = ioremap(CADMUS_BASE, CADMUS_SIZE); - cds_pci_slot = ((cadmus[CM_CSR] >> 6) & 0x3) + 1; + np = of_find_compatible_node(NULL, NULL, "fsl,mpc8548cds-fpga"); + if (!np) { + pr_err("Could not find FPGA node.\n"); + return; + } + + cadmus = of_iomap(np, 0); + of_node_put(np); + if (!cadmus) { + pr_err("Fail to map FPGA area.\n"); + return; + } if (ppc_md.progress) { char buf[40]; + cds_pci_slot = ((in_8(&cadmus->cm_csr) >> 6) & 0x3) + 1; snprintf(buf, 40, "CDS Version = 0x%x in slot %d\n", - cadmus[CM_VER], cds_pci_slot); + in_8(&cadmus->cm_ver), cds_pci_slot); ppc_md.progress(buf, 0); } @@ -292,7 +335,8 @@ static void mpc85xx_cds_show_cpuinfo(struct seq_file *m) svid = mfspr(SPRN_SVR); seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n"); - seq_printf(m, "Machine\t\t: MPC85xx CDS (0x%x)\n", cadmus[CM_VER]); + seq_printf(m, "Machine\t\t: MPC85xx CDS (0x%x)\n", + in_8(&cadmus->cm_ver)); seq_printf(m, "PVR\t\t: 0x%x\n", pvid); seq_printf(m, "SVR\t\t: 0x%x\n", svid); @@ -323,7 +367,7 @@ define_machine(mpc85xx_cds) { .get_irq = mpic_get_irq, #ifdef CONFIG_PCI .restart = mpc85xx_cds_restart, - .pcibios_fixup_bus = fsl_pcibios_fixup_bus, + .pcibios_fixup_bus = mpc85xx_cds_fixup_bus, #else .restart = fsl_rstcr_restart, #endif diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c index eefbb91..6e23e3e 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c @@ -72,13 +72,13 @@ void __init mpc85xx_ds_pic_init(void) if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS-CAMP")) { mpic = mpic_alloc(NULL, 0, - MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | + MPIC_NO_RESET | + MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC "); } else { mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | - MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | + MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC "); } diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index 1d15a0c..f33662b 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -1,5 +1,6 @@ /* - * Copyright (C) Freescale Semicondutor, Inc. 2006-2010. All rights reserved. + * Copyright (C) 2006-2010, 2012 Freescale Semicondutor, Inc. + * All rights reserved. * * Author: Andy Fleming <afleming@freescale.com> * @@ -51,6 +52,7 @@ #include <asm/qe_ic.h> #include <asm/mpic.h> #include <asm/swiotlb.h> +#include <asm/fsl_guts.h> #include "smp.h" #include "mpc85xx.h" @@ -268,34 +270,27 @@ static void __init mpc85xx_mds_qe_init(void) mpc85xx_mds_reset_ucc_phys(); if (machine_is(p1021_mds)) { -#define MPC85xx_PMUXCR_OFFSET 0x60 -#define MPC85xx_PMUXCR_QE0 0x00008000 -#define MPC85xx_PMUXCR_QE3 0x00001000 -#define MPC85xx_PMUXCR_QE9 0x00000040 -#define MPC85xx_PMUXCR_QE12 0x00000008 - static __be32 __iomem *pmuxcr; - np = of_find_node_by_name(NULL, "global-utilities"); + struct ccsr_guts_85xx __iomem *guts; + np = of_find_node_by_name(NULL, "global-utilities"); if (np) { - pmuxcr = of_iomap(np, 0) + MPC85xx_PMUXCR_OFFSET; - - if (!pmuxcr) - printk(KERN_EMERG "Error: Alternate function" - " signal multiplex control register not" - " mapped!\n"); - else + guts = of_iomap(np, 0); + if (!guts) + pr_err("mpc85xx-rdb: could not map global utilities register\n"); + else{ /* P1021 has pins muxed for QE and other functions. To * enable QE UEC mode, we need to set bit QE0 for UCC1 * in Eth mode, QE0 and QE3 for UCC5 in Eth mode, QE9 * and QE12 for QE MII management signals in PMUXCR * register. */ - setbits32(pmuxcr, MPC85xx_PMUXCR_QE0 | - MPC85xx_PMUXCR_QE3 | - MPC85xx_PMUXCR_QE9 | - MPC85xx_PMUXCR_QE12); - + setbits32(&guts->pmuxcr, MPC85xx_PMUXCR_QE(0) | + MPC85xx_PMUXCR_QE(3) | + MPC85xx_PMUXCR_QE(9) | + MPC85xx_PMUXCR_QE(12)); + iounmap(guts); + } of_node_put(np); } @@ -434,9 +429,8 @@ machine_arch_initcall(p1021_mds, swiotlb_setup_bus_notifier); static void __init mpc85xx_mds_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN | - MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | + MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c index ccf520e..db214cd 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c @@ -1,7 +1,7 @@ /* * MPC85xx RDB Board Setup * - * Copyright 2009 Freescale Semiconductor Inc. + * Copyright 2009,2012 Freescale Semiconductor Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -26,6 +26,9 @@ #include <asm/prom.h> #include <asm/udbg.h> #include <asm/mpic.h> +#include <asm/qe.h> +#include <asm/qe_ic.h> +#include <asm/fsl_guts.h> #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> @@ -47,21 +50,36 @@ void __init mpc85xx_rdb_pic_init(void) struct mpic *mpic; unsigned long root = of_get_flat_dt_root(); +#ifdef CONFIG_QUICC_ENGINE + struct device_node *np; +#endif + if (of_flat_dt_is_compatible(root, "fsl,MPC85XXRDB-CAMP")) { - mpic = mpic_alloc(NULL, 0, - MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | + mpic = mpic_alloc(NULL, 0, MPIC_NO_RESET | + MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC "); } else { mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | - MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | + MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC "); } BUG_ON(mpic == NULL); mpic_init(mpic); + +#ifdef CONFIG_QUICC_ENGINE + np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic"); + if (np) { + qe_ic_init(np, 0, qe_ic_cascade_low_mpic, + qe_ic_cascade_high_mpic); + of_node_put(np); + + } else + pr_err("%s: Could not find qe-ic node\n", __func__); +#endif + } /* @@ -69,7 +87,7 @@ void __init mpc85xx_rdb_pic_init(void) */ static void __init mpc85xx_rdb_setup_arch(void) { -#ifdef CONFIG_PCI +#if defined(CONFIG_PCI) || defined(CONFIG_QUICC_ENGINE) struct device_node *np; #endif @@ -85,11 +103,73 @@ static void __init mpc85xx_rdb_setup_arch(void) #endif mpc85xx_smp_init(); + +#ifdef CONFIG_QUICC_ENGINE + np = of_find_compatible_node(NULL, NULL, "fsl,qe"); + if (!np) { + pr_err("%s: Could not find Quicc Engine node\n", __func__); + goto qe_fail; + } + + qe_reset(); + of_node_put(np); + + np = of_find_node_by_name(NULL, "par_io"); + if (np) { + struct device_node *ucc; + + par_io_init(np); + of_node_put(np); + + for_each_node_by_name(ucc, "ucc") + par_io_of_config(ucc); + + } +#if defined(CONFIG_UCC_GETH) || defined(CONFIG_SERIAL_QE) + if (machine_is(p1025_rdb)) { + + struct ccsr_guts_85xx __iomem *guts; + + np = of_find_node_by_name(NULL, "global-utilities"); + if (np) { + guts = of_iomap(np, 0); + if (!guts) { + + pr_err("mpc85xx-rdb: could not map global utilities register\n"); + + } else { + /* P1025 has pins muxed for QE and other functions. To + * enable QE UEC mode, we need to set bit QE0 for UCC1 + * in Eth mode, QE0 and QE3 for UCC5 in Eth mode, QE9 + * and QE12 for QE MII management singals in PMUXCR + * register. + */ + setbits32(&guts->pmuxcr, MPC85xx_PMUXCR_QE(0) | + MPC85xx_PMUXCR_QE(3) | + MPC85xx_PMUXCR_QE(9) | + MPC85xx_PMUXCR_QE(12)); + iounmap(guts); + } + of_node_put(np); + } + + } +#endif + +qe_fail: +#endif /* CONFIG_QUICC_ENGINE */ + printk(KERN_INFO "MPC85xx RDB board from Freescale Semiconductor\n"); } machine_device_initcall(p2020_rdb, mpc85xx_common_publish_devices); +machine_device_initcall(p2020_rdb_pc, mpc85xx_common_publish_devices); +machine_device_initcall(p1020_mbg_pc, mpc85xx_common_publish_devices); machine_device_initcall(p1020_rdb, mpc85xx_common_publish_devices); +machine_device_initcall(p1020_rdb_pc, mpc85xx_common_publish_devices); +machine_device_initcall(p1020_utm_pc, mpc85xx_common_publish_devices); +machine_device_initcall(p1021_rdb_pc, mpc85xx_common_publish_devices); +machine_device_initcall(p1025_rdb, mpc85xx_common_publish_devices); /* * Called very early, device-tree isn't unflattened @@ -112,6 +192,52 @@ static int __init p1020_rdb_probe(void) return 0; } +static int __init p1020_rdb_pc_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "fsl,P1020RDB-PC"); +} + +static int __init p1021_rdb_pc_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (of_flat_dt_is_compatible(root, "fsl,P1021RDB-PC")) + return 1; + return 0; +} + +static int __init p2020_rdb_pc_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (of_flat_dt_is_compatible(root, "fsl,P2020RDB-PC")) + return 1; + return 0; +} + +static int __init p1025_rdb_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "fsl,P1025RDB"); +} + +static int __init p1020_mbg_pc_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "fsl,P1020MBG-PC"); +} + +static int __init p1020_utm_pc_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "fsl,P1020UTM-PC"); +} + define_machine(p2020_rdb) { .name = "P2020 RDB", .probe = p2020_rdb_probe, @@ -139,3 +265,87 @@ define_machine(p1020_rdb) { .calibrate_decr = generic_calibrate_decr, .progress = udbg_progress, }; + +define_machine(p1021_rdb_pc) { + .name = "P1021 RDB-PC", + .probe = p1021_rdb_pc_probe, + .setup_arch = mpc85xx_rdb_setup_arch, + .init_IRQ = mpc85xx_rdb_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; + +define_machine(p2020_rdb_pc) { + .name = "P2020RDB-PC", + .probe = p2020_rdb_pc_probe, + .setup_arch = mpc85xx_rdb_setup_arch, + .init_IRQ = mpc85xx_rdb_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; + +define_machine(p1025_rdb) { + .name = "P1025 RDB", + .probe = p1025_rdb_probe, + .setup_arch = mpc85xx_rdb_setup_arch, + .init_IRQ = mpc85xx_rdb_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; + +define_machine(p1020_mbg_pc) { + .name = "P1020 MBG-PC", + .probe = p1020_mbg_pc_probe, + .setup_arch = mpc85xx_rdb_setup_arch, + .init_IRQ = mpc85xx_rdb_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; + +define_machine(p1020_utm_pc) { + .name = "P1020 UTM-PC", + .probe = p1020_utm_pc_probe, + .setup_arch = mpc85xx_rdb_setup_arch, + .init_IRQ = mpc85xx_rdb_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; + +define_machine(p1020_rdb_pc) { + .name = "P1020RDB-PC", + .probe = p1020_rdb_pc_probe, + .setup_arch = mpc85xx_rdb_setup_arch, + .init_IRQ = mpc85xx_rdb_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; diff --git a/arch/powerpc/platforms/85xx/p1010rdb.c b/arch/powerpc/platforms/85xx/p1010rdb.c index 538bc3f..d8bd656 100644 --- a/arch/powerpc/platforms/85xx/p1010rdb.c +++ b/arch/powerpc/platforms/85xx/p1010rdb.c @@ -32,9 +32,8 @@ void __init p1010_rdb_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN | - MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | + MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c index b0984ad..0fe88e3 100644 --- a/arch/powerpc/platforms/85xx/p1022_ds.c +++ b/arch/powerpc/platforms/85xx/p1022_ds.c @@ -33,6 +33,10 @@ #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) +#define PMUXCR_ELBCDIU_MASK 0xc0000000 +#define PMUXCR_ELBCDIU_NOR16 0x80000000 +#define PMUXCR_ELBCDIU_DIU 0x40000000 + /* * Board-specific initialization of the DIU. This code should probably be * executed when the DIU is opened, rather than in arch code, but the DIU @@ -50,11 +54,22 @@ #define CLKDVDR_PXCLK_MASK 0x00FF0000 /* Some ngPIXIS register definitions */ +#define PX_CTL 3 +#define PX_BRDCFG0 8 +#define PX_BRDCFG1 9 + +#define PX_BRDCFG0_ELBC_SPI_MASK 0xc0 +#define PX_BRDCFG0_ELBC_SPI_ELBC 0x00 +#define PX_BRDCFG0_ELBC_SPI_NULL 0xc0 +#define PX_BRDCFG0_ELBC_DIU 0x02 + #define PX_BRDCFG1_DVIEN 0x80 #define PX_BRDCFG1_DFPEN 0x40 #define PX_BRDCFG1_BACKLIGHT 0x20 #define PX_BRDCFG1_DDCEN 0x10 +#define PX_CTL_ALTACC 0x80 + /* * DIU Area Descriptor * @@ -133,44 +148,117 @@ static void p1022ds_set_gamma_table(enum fsl_diu_monitor_port port, */ static void p1022ds_set_monitor_port(enum fsl_diu_monitor_port port) { - struct device_node *np; - void __iomem *pixis; - u8 __iomem *brdcfg1; - - np = of_find_compatible_node(NULL, NULL, "fsl,p1022ds-fpga"); - if (!np) - /* older device trees used "fsl,p1022ds-pixis" */ - np = of_find_compatible_node(NULL, NULL, "fsl,p1022ds-pixis"); - if (!np) { - pr_err("p1022ds: missing ngPIXIS node\n"); + struct device_node *guts_node; + struct device_node *indirect_node = NULL; + struct ccsr_guts_85xx __iomem *guts; + u8 __iomem *lbc_lcs0_ba = NULL; + u8 __iomem *lbc_lcs1_ba = NULL; + u8 b; + + /* Map the global utilities registers. */ + guts_node = of_find_compatible_node(NULL, NULL, "fsl,p1022-guts"); + if (!guts_node) { + pr_err("p1022ds: missing global utilties device node\n"); return; } - pixis = of_iomap(np, 0); - if (!pixis) { - pr_err("p1022ds: could not map ngPIXIS registers\n"); - return; + guts = of_iomap(guts_node, 0); + if (!guts) { + pr_err("p1022ds: could not map global utilties device\n"); + goto exit; } - brdcfg1 = pixis + 9; /* BRDCFG1 is at offset 9 in the ngPIXIS */ + + indirect_node = of_find_compatible_node(NULL, NULL, + "fsl,p1022ds-indirect-pixis"); + if (!indirect_node) { + pr_err("p1022ds: missing pixis indirect mode node\n"); + goto exit; + } + + lbc_lcs0_ba = of_iomap(indirect_node, 0); + if (!lbc_lcs0_ba) { + pr_err("p1022ds: could not map localbus chip select 0\n"); + goto exit; + } + + lbc_lcs1_ba = of_iomap(indirect_node, 1); + if (!lbc_lcs1_ba) { + pr_err("p1022ds: could not map localbus chip select 1\n"); + goto exit; + } + + /* Make sure we're in indirect mode first. */ + if ((in_be32(&guts->pmuxcr) & PMUXCR_ELBCDIU_MASK) != + PMUXCR_ELBCDIU_DIU) { + struct device_node *pixis_node; + void __iomem *pixis; + + pixis_node = + of_find_compatible_node(NULL, NULL, "fsl,p1022ds-fpga"); + if (!pixis_node) { + pr_err("p1022ds: missing pixis node\n"); + goto exit; + } + + pixis = of_iomap(pixis_node, 0); + of_node_put(pixis_node); + if (!pixis) { + pr_err("p1022ds: could not map pixis registers\n"); + goto exit; + } + + /* Enable indirect PIXIS mode. */ + setbits8(pixis + PX_CTL, PX_CTL_ALTACC); + iounmap(pixis); + + /* Switch the board mux to the DIU */ + out_8(lbc_lcs0_ba, PX_BRDCFG0); /* BRDCFG0 */ + b = in_8(lbc_lcs1_ba); + b |= PX_BRDCFG0_ELBC_DIU; + out_8(lbc_lcs1_ba, b); + + /* Set the chip mux to DIU mode. */ + clrsetbits_be32(&guts->pmuxcr, PMUXCR_ELBCDIU_MASK, + PMUXCR_ELBCDIU_DIU); + in_be32(&guts->pmuxcr); + } + switch (port) { case FSL_DIU_PORT_DVI: - printk(KERN_INFO "%s:%u\n", __func__, __LINE__); /* Enable the DVI port, disable the DFP and the backlight */ - clrsetbits_8(brdcfg1, PX_BRDCFG1_DFPEN | PX_BRDCFG1_BACKLIGHT, - PX_BRDCFG1_DVIEN); + out_8(lbc_lcs0_ba, PX_BRDCFG1); + b = in_8(lbc_lcs1_ba); + b &= ~(PX_BRDCFG1_DFPEN | PX_BRDCFG1_BACKLIGHT); + b |= PX_BRDCFG1_DVIEN; + out_8(lbc_lcs1_ba, b); break; case FSL_DIU_PORT_LVDS: - printk(KERN_INFO "%s:%u\n", __func__, __LINE__); + /* + * LVDS also needs backlight enabled, otherwise the display + * will be blank. + */ /* Enable the DFP port, disable the DVI and the backlight */ - clrsetbits_8(brdcfg1, PX_BRDCFG1_DVIEN | PX_BRDCFG1_BACKLIGHT, - PX_BRDCFG1_DFPEN); + out_8(lbc_lcs0_ba, PX_BRDCFG1); + b = in_8(lbc_lcs1_ba); + b &= ~PX_BRDCFG1_DVIEN; + b |= PX_BRDCFG1_DFPEN | PX_BRDCFG1_BACKLIGHT; + out_8(lbc_lcs1_ba, b); break; default: pr_err("p1022ds: unsupported monitor port %i\n", port); } - iounmap(pixis); +exit: + if (lbc_lcs1_ba) + iounmap(lbc_lcs1_ba); + if (lbc_lcs0_ba) + iounmap(lbc_lcs0_ba); + if (guts) + iounmap(guts); + + of_node_put(indirect_node); + of_node_put(guts_node); } /** @@ -242,15 +330,56 @@ p1022ds_valid_monitor_port(enum fsl_diu_monitor_port port) void __init p1022_ds_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | - MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); } +#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) + +/* + * Disables a node in the device tree. + * + * This function is called before kmalloc() is available, so the 'new' object + * should be allocated in the global area. The easiest way is to do that is + * to allocate one static local variable for each call to this function. + */ +static void __init disable_one_node(struct device_node *np, struct property *new) +{ + struct property *old; + + old = of_find_property(np, new->name, NULL); + if (old) + prom_update_property(np, new, old); + else + prom_add_property(np, new); +} + +/* TRUE if there is a "video=fslfb" command-line parameter. */ +static bool fslfb; + +/* + * Search for a "video=fslfb" command-line parameter, and set 'fslfb' to + * true if we find it. + * + * We need to use early_param() instead of __setup() because the normal + * __setup() gets called to late. However, early_param() gets called very + * early, before the device tree is unflattened, so all we can do now is set a + * global variable. Later on, p1022_ds_setup_arch() will use that variable + * to determine if we need to update the device tree. + */ +static int __init early_video_setup(char *options) +{ + fslfb = (strncmp(options, "fslfb:", 6) == 0); + + return 0; +} +early_param("video", early_video_setup); + +#endif + /* * Setup the architecture */ @@ -288,6 +417,34 @@ static void __init p1022_ds_setup_arch(void) diu_ops.set_monitor_port = p1022ds_set_monitor_port; diu_ops.set_pixel_clock = p1022ds_set_pixel_clock; diu_ops.valid_monitor_port = p1022ds_valid_monitor_port; + + /* + * Disable the NOR flash node if there is video=fslfb... command-line + * parameter. When the DIU is active, NOR flash is unavailable, so we + * have to disable the node before the MTD driver loads. + */ + if (fslfb) { + struct device_node *np = + of_find_compatible_node(NULL, NULL, "fsl,p1022-elbc"); + + if (np) { + np = of_find_compatible_node(np, NULL, "cfi-flash"); + if (np) { + static struct property nor_status = { + .name = "status", + .value = "disabled", + .length = sizeof("disabled"), + }; + + pr_info("p1022ds: disabling %s node", + np->full_name); + disable_one_node(np, &nor_status); + of_node_put(np); + } + } + + } + #endif mpc85xx_smp_init(); diff --git a/arch/powerpc/platforms/85xx/p1023_rds.c b/arch/powerpc/platforms/85xx/p1023_rds.c index d951e70..6b07398 100644 --- a/arch/powerpc/platforms/85xx/p1023_rds.c +++ b/arch/powerpc/platforms/85xx/p1023_rds.c @@ -93,9 +93,8 @@ machine_device_initcall(p1023_rds, mpc85xx_common_publish_devices); static void __init mpc85xx_rds_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN | - MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | + MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c index 184a507..1677b8a 100644 --- a/arch/powerpc/platforms/85xx/sbc8548.c +++ b/arch/powerpc/platforms/85xx/sbc8548.c @@ -54,8 +54,7 @@ static int sbc_rev; static void __init sbc8548_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); diff --git a/arch/powerpc/platforms/85xx/sbc8560.c b/arch/powerpc/platforms/85xx/sbc8560.c index 940752e..3c3bbcc 100644 --- a/arch/powerpc/platforms/85xx/sbc8560.c +++ b/arch/powerpc/platforms/85xx/sbc8560.c @@ -41,8 +41,7 @@ static void __init sbc8560_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); diff --git a/arch/powerpc/platforms/85xx/socrates.c b/arch/powerpc/platforms/85xx/socrates.c index 18f6359..b719192 100644 --- a/arch/powerpc/platforms/85xx/socrates.c +++ b/arch/powerpc/platforms/85xx/socrates.c @@ -48,8 +48,7 @@ static void __init socrates_pic_init(void) { struct device_node *np; - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); diff --git a/arch/powerpc/platforms/85xx/stx_gp3.c b/arch/powerpc/platforms/85xx/stx_gp3.c index e9e5234..27ca3a7 100644 --- a/arch/powerpc/platforms/85xx/stx_gp3.c +++ b/arch/powerpc/platforms/85xx/stx_gp3.c @@ -48,8 +48,7 @@ static void __init stx_gp3_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); diff --git a/arch/powerpc/platforms/85xx/tqm85xx.c b/arch/powerpc/platforms/85xx/tqm85xx.c index bf7c89f..d7504ce 100644 --- a/arch/powerpc/platforms/85xx/tqm85xx.c +++ b/arch/powerpc/platforms/85xx/tqm85xx.c @@ -47,7 +47,7 @@ static void __init tqm85xx_pic_init(void) { struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + MPIC_BIG_ENDIAN, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); diff --git a/arch/powerpc/platforms/85xx/xes_mpc85xx.c b/arch/powerpc/platforms/85xx/xes_mpc85xx.c index 3a69f8b..503c215 100644 --- a/arch/powerpc/platforms/85xx/xes_mpc85xx.c +++ b/arch/powerpc/platforms/85xx/xes_mpc85xx.c @@ -43,9 +43,7 @@ void __init xes_mpc85xx_pic_init(void) { - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | - MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 0, 256, " OpenPIC "); BUG_ON(mpic == NULL); mpic_init(mpic); diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig index 8d6599d..7a6279e 100644 --- a/arch/powerpc/platforms/86xx/Kconfig +++ b/arch/powerpc/platforms/86xx/Kconfig @@ -39,6 +39,7 @@ config GEF_PPC9A select MMIO_NVRAM select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB + select GE_FPGA help This option enables support for the GE PPC9A. @@ -48,6 +49,7 @@ config GEF_SBC310 select MMIO_NVRAM select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB + select GE_FPGA help This option enables support for the GE SBC310. @@ -57,6 +59,7 @@ config GEF_SBC610 select MMIO_NVRAM select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB + select GE_FPGA select HAS_RAPIDIO help This option enables support for the GE SBC610. diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile index 4b0d7b1..ede815d 100644 --- a/arch/powerpc/platforms/86xx/Makefile +++ b/arch/powerpc/platforms/86xx/Makefile @@ -7,7 +7,6 @@ obj-$(CONFIG_SMP) += mpc86xx_smp.o obj-$(CONFIG_MPC8641_HPCN) += mpc86xx_hpcn.o obj-$(CONFIG_SBC8641D) += sbc8641d.o obj-$(CONFIG_MPC8610_HPCD) += mpc8610_hpcd.o -gef-gpio-$(CONFIG_GPIOLIB) += gef_gpio.o -obj-$(CONFIG_GEF_SBC610) += gef_sbc610.o gef_pic.o $(gef-gpio-y) -obj-$(CONFIG_GEF_SBC310) += gef_sbc310.o gef_pic.o $(gef-gpio-y) -obj-$(CONFIG_GEF_PPC9A) += gef_ppc9a.o gef_pic.o $(gef-gpio-y) +obj-$(CONFIG_GEF_SBC610) += gef_sbc610.o +obj-$(CONFIG_GEF_SBC310) += gef_sbc310.o +obj-$(CONFIG_GEF_PPC9A) += gef_ppc9a.o diff --git a/arch/powerpc/platforms/86xx/gef_gpio.c b/arch/powerpc/platforms/86xx/gef_gpio.c deleted file mode 100644 index 2a70336..0000000 --- a/arch/powerpc/platforms/86xx/gef_gpio.c +++ /dev/null @@ -1,171 +0,0 @@ -/* - * Driver for GE FPGA based GPIO - * - * Author: Martyn Welch <martyn.welch@ge.com> - * - * 2008 (c) GE Intelligent Platforms Embedded Systems, Inc. - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -/* TODO - * - * Configuration of output modes (totem-pole/open-drain) - * Interrupt configuration - interrupts are always generated the FPGA relies on - * the I/O interrupt controllers mask to stop them propergating - */ - -#include <linux/kernel.h> -#include <linux/compiler.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <linux/of_platform.h> -#include <linux/of_gpio.h> -#include <linux/gpio.h> -#include <linux/slab.h> -#include <linux/module.h> - -#define GEF_GPIO_DIRECT 0x00 -#define GEF_GPIO_IN 0x04 -#define GEF_GPIO_OUT 0x08 -#define GEF_GPIO_TRIG 0x0C -#define GEF_GPIO_POLAR_A 0x10 -#define GEF_GPIO_POLAR_B 0x14 -#define GEF_GPIO_INT_STAT 0x18 -#define GEF_GPIO_OVERRUN 0x1C -#define GEF_GPIO_MODE 0x20 - -static void _gef_gpio_set(void __iomem *reg, unsigned int offset, int value) -{ - unsigned int data; - - data = ioread32be(reg); - /* value: 0=low; 1=high */ - if (value & 0x1) - data = data | (0x1 << offset); - else - data = data & ~(0x1 << offset); - - iowrite32be(data, reg); -} - - -static int gef_gpio_dir_in(struct gpio_chip *chip, unsigned offset) -{ - unsigned int data; - struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip); - - data = ioread32be(mmchip->regs + GEF_GPIO_DIRECT); - data = data | (0x1 << offset); - iowrite32be(data, mmchip->regs + GEF_GPIO_DIRECT); - - return 0; -} - -static int gef_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int value) -{ - unsigned int data; - struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip); - - /* Set direction before switching to input */ - _gef_gpio_set(mmchip->regs + GEF_GPIO_OUT, offset, value); - - data = ioread32be(mmchip->regs + GEF_GPIO_DIRECT); - data = data & ~(0x1 << offset); - iowrite32be(data, mmchip->regs + GEF_GPIO_DIRECT); - - return 0; -} - -static int gef_gpio_get(struct gpio_chip *chip, unsigned offset) -{ - unsigned int data; - int state = 0; - struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip); - - data = ioread32be(mmchip->regs + GEF_GPIO_IN); - state = (int)((data >> offset) & 0x1); - - return state; -} - -static void gef_gpio_set(struct gpio_chip *chip, unsigned offset, int value) -{ - struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip); - - _gef_gpio_set(mmchip->regs + GEF_GPIO_OUT, offset, value); -} - -static int __init gef_gpio_init(void) -{ - struct device_node *np; - int retval; - struct of_mm_gpio_chip *gef_gpio_chip; - - for_each_compatible_node(np, NULL, "gef,sbc610-gpio") { - - pr_debug("%s: Initialising GEF GPIO\n", np->full_name); - - /* Allocate chip structure */ - gef_gpio_chip = kzalloc(sizeof(*gef_gpio_chip), GFP_KERNEL); - if (!gef_gpio_chip) { - pr_err("%s: Unable to allocate structure\n", - np->full_name); - continue; - } - - /* Setup pointers to chip functions */ - gef_gpio_chip->gc.of_gpio_n_cells = 2; - gef_gpio_chip->gc.ngpio = 19; - gef_gpio_chip->gc.direction_input = gef_gpio_dir_in; - gef_gpio_chip->gc.direction_output = gef_gpio_dir_out; - gef_gpio_chip->gc.get = gef_gpio_get; - gef_gpio_chip->gc.set = gef_gpio_set; - - /* This function adds a memory mapped GPIO chip */ - retval = of_mm_gpiochip_add(np, gef_gpio_chip); - if (retval) { - kfree(gef_gpio_chip); - pr_err("%s: Unable to add GPIO\n", np->full_name); - } - } - - for_each_compatible_node(np, NULL, "gef,sbc310-gpio") { - - pr_debug("%s: Initialising GEF GPIO\n", np->full_name); - - /* Allocate chip structure */ - gef_gpio_chip = kzalloc(sizeof(*gef_gpio_chip), GFP_KERNEL); - if (!gef_gpio_chip) { - pr_err("%s: Unable to allocate structure\n", - np->full_name); - continue; - } - - /* Setup pointers to chip functions */ - gef_gpio_chip->gc.of_gpio_n_cells = 2; - gef_gpio_chip->gc.ngpio = 6; - gef_gpio_chip->gc.direction_input = gef_gpio_dir_in; - gef_gpio_chip->gc.direction_output = gef_gpio_dir_out; - gef_gpio_chip->gc.get = gef_gpio_get; - gef_gpio_chip->gc.set = gef_gpio_set; - - /* This function adds a memory mapped GPIO chip */ - retval = of_mm_gpiochip_add(np, gef_gpio_chip); - if (retval) { - kfree(gef_gpio_chip); - pr_err("%s: Unable to add GPIO\n", np->full_name); - } - } - - return 0; -}; -arch_initcall(gef_gpio_init); - -MODULE_DESCRIPTION("GE I/O FPGA GPIO driver"); -MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com"); -MODULE_LICENSE("GPL"); diff --git a/arch/powerpc/platforms/86xx/gef_pic.c b/arch/powerpc/platforms/86xx/gef_pic.c deleted file mode 100644 index af3fd69..0000000 --- a/arch/powerpc/platforms/86xx/gef_pic.c +++ /dev/null @@ -1,251 +0,0 @@ -/* - * Interrupt handling for GE FPGA based PIC - * - * Author: Martyn Welch <martyn.welch@ge.com> - * - * 2008 (c) GE Intelligent Platforms Embedded Systems, Inc. - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#include <linux/stddef.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/irq.h> -#include <linux/interrupt.h> -#include <linux/spinlock.h> - -#include <asm/byteorder.h> -#include <asm/io.h> -#include <asm/prom.h> -#include <asm/irq.h> - -#include "gef_pic.h" - -#define DEBUG -#undef DEBUG - -#ifdef DEBUG -#define DBG(fmt...) do { printk(KERN_DEBUG "gef_pic: " fmt); } while (0) -#else -#define DBG(fmt...) do { } while (0) -#endif - -#define GEF_PIC_NUM_IRQS 32 - -/* Interrupt Controller Interface Registers */ -#define GEF_PIC_INTR_STATUS 0x0000 - -#define GEF_PIC_INTR_MASK(cpu) (0x0010 + (0x4 * cpu)) -#define GEF_PIC_CPU0_INTR_MASK GEF_PIC_INTR_MASK(0) -#define GEF_PIC_CPU1_INTR_MASK GEF_PIC_INTR_MASK(1) - -#define GEF_PIC_MCP_MASK(cpu) (0x0018 + (0x4 * cpu)) -#define GEF_PIC_CPU0_MCP_MASK GEF_PIC_MCP_MASK(0) -#define GEF_PIC_CPU1_MCP_MASK GEF_PIC_MCP_MASK(1) - - -static DEFINE_RAW_SPINLOCK(gef_pic_lock); - -static void __iomem *gef_pic_irq_reg_base; -static struct irq_domain *gef_pic_irq_host; -static int gef_pic_cascade_irq; - -/* - * Interrupt Controller Handling - * - * The interrupt controller handles interrupts for most on board interrupts, - * apart from PCI interrupts. For example on SBC610: - * - * 17:31 RO Reserved - * 16 RO PCI Express Doorbell 3 Status - * 15 RO PCI Express Doorbell 2 Status - * 14 RO PCI Express Doorbell 1 Status - * 13 RO PCI Express Doorbell 0 Status - * 12 RO Real Time Clock Interrupt Status - * 11 RO Temperature Interrupt Status - * 10 RO Temperature Critical Interrupt Status - * 9 RO Ethernet PHY1 Interrupt Status - * 8 RO Ethernet PHY3 Interrupt Status - * 7 RO PEX8548 Interrupt Status - * 6 RO Reserved - * 5 RO Watchdog 0 Interrupt Status - * 4 RO Watchdog 1 Interrupt Status - * 3 RO AXIS Message FIFO A Interrupt Status - * 2 RO AXIS Message FIFO B Interrupt Status - * 1 RO AXIS Message FIFO C Interrupt Status - * 0 RO AXIS Message FIFO D Interrupt Status - * - * Interrupts can be forwarded to one of two output lines. Nothing - * clever is done, so if the masks are incorrectly set, a single input - * interrupt could generate interrupts on both output lines! - * - * The dual lines are there to allow the chained interrupts to be easily - * passed into two different cores. We currently do not use this functionality - * in this driver. - * - * Controller can also be configured to generate Machine checks (MCP), again on - * two lines, to be attached to two different cores. It is suggested that these - * should be masked out. - */ - -void gef_pic_cascade(unsigned int irq, struct irq_desc *desc) -{ - struct irq_chip *chip = irq_desc_get_chip(desc); - unsigned int cascade_irq; - - /* - * See if we actually have an interrupt, call generic handling code if - * we do. - */ - cascade_irq = gef_pic_get_irq(); - - if (cascade_irq != NO_IRQ) - generic_handle_irq(cascade_irq); - - chip->irq_eoi(&desc->irq_data); -} - -static void gef_pic_mask(struct irq_data *d) -{ - unsigned long flags; - unsigned int hwirq = irqd_to_hwirq(d); - u32 mask; - - raw_spin_lock_irqsave(&gef_pic_lock, flags); - mask = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0)); - mask &= ~(1 << hwirq); - out_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0), mask); - raw_spin_unlock_irqrestore(&gef_pic_lock, flags); -} - -static void gef_pic_mask_ack(struct irq_data *d) -{ - /* Don't think we actually have to do anything to ack an interrupt, - * we just need to clear down the devices interrupt and it will go away - */ - gef_pic_mask(d); -} - -static void gef_pic_unmask(struct irq_data *d) -{ - unsigned long flags; - unsigned int hwirq = irqd_to_hwirq(d); - u32 mask; - - raw_spin_lock_irqsave(&gef_pic_lock, flags); - mask = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0)); - mask |= (1 << hwirq); - out_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0), mask); - raw_spin_unlock_irqrestore(&gef_pic_lock, flags); -} - -static struct irq_chip gef_pic_chip = { - .name = "gefp", - .irq_mask = gef_pic_mask, - .irq_mask_ack = gef_pic_mask_ack, - .irq_unmask = gef_pic_unmask, -}; - - -/* When an interrupt is being configured, this call allows some flexibilty - * in deciding which irq_chip structure is used - */ -static int gef_pic_host_map(struct irq_domain *h, unsigned int virq, - irq_hw_number_t hwirq) -{ - /* All interrupts are LEVEL sensitive */ - irq_set_status_flags(virq, IRQ_LEVEL); - irq_set_chip_and_handler(virq, &gef_pic_chip, handle_level_irq); - - return 0; -} - -static int gef_pic_host_xlate(struct irq_domain *h, struct device_node *ct, - const u32 *intspec, unsigned int intsize, - irq_hw_number_t *out_hwirq, unsigned int *out_flags) -{ - - *out_hwirq = intspec[0]; - if (intsize > 1) - *out_flags = intspec[1]; - else - *out_flags = IRQ_TYPE_LEVEL_HIGH; - - return 0; -} - -static const struct irq_domain_ops gef_pic_host_ops = { - .map = gef_pic_host_map, - .xlate = gef_pic_host_xlate, -}; - - -/* - * Initialisation of PIC, this should be called in BSP - */ -void __init gef_pic_init(struct device_node *np) -{ - unsigned long flags; - - /* Map the devices registers into memory */ - gef_pic_irq_reg_base = of_iomap(np, 0); - - raw_spin_lock_irqsave(&gef_pic_lock, flags); - - /* Initialise everything as masked. */ - out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU0_INTR_MASK, 0); - out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU1_INTR_MASK, 0); - - out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU0_MCP_MASK, 0); - out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU1_MCP_MASK, 0); - - raw_spin_unlock_irqrestore(&gef_pic_lock, flags); - - /* Map controller */ - gef_pic_cascade_irq = irq_of_parse_and_map(np, 0); - if (gef_pic_cascade_irq == NO_IRQ) { - printk(KERN_ERR "SBC610: failed to map cascade interrupt"); - return; - } - - /* Setup an irq_domain structure */ - gef_pic_irq_host = irq_domain_add_linear(np, GEF_PIC_NUM_IRQS, - &gef_pic_host_ops, NULL); - if (gef_pic_irq_host == NULL) - return; - - /* Chain with parent controller */ - irq_set_chained_handler(gef_pic_cascade_irq, gef_pic_cascade); -} - -/* - * This is called when we receive an interrupt with apparently comes from this - * chip - check, returning the highest interrupt generated or return NO_IRQ - */ -unsigned int gef_pic_get_irq(void) -{ - u32 cause, mask, active; - unsigned int virq = NO_IRQ; - int hwirq; - - cause = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_STATUS); - - mask = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0)); - - active = cause & mask; - - if (active) { - for (hwirq = GEF_PIC_NUM_IRQS - 1; hwirq > -1; hwirq--) { - if (active & (0x1 << hwirq)) - break; - } - virq = irq_linear_revmap(gef_pic_irq_host, - (irq_hw_number_t)hwirq); - } - - return virq; -} - diff --git a/arch/powerpc/platforms/86xx/gef_pic.h b/arch/powerpc/platforms/86xx/gef_pic.h deleted file mode 100644 index 6149916..0000000 --- a/arch/powerpc/platforms/86xx/gef_pic.h +++ /dev/null @@ -1,11 +0,0 @@ -#ifndef __GEF_PIC_H__ -#define __GEF_PIC_H__ - -#include <linux/init.h> - -void gef_pic_cascade(unsigned int, struct irq_desc *); -unsigned int gef_pic_get_irq(void); -void gef_pic_init(struct device_node *); - -#endif /* __GEF_PIC_H__ */ - diff --git a/arch/powerpc/platforms/86xx/gef_ppc9a.c b/arch/powerpc/platforms/86xx/gef_ppc9a.c index 60ce07e..ed58b6c 100644 --- a/arch/powerpc/platforms/86xx/gef_ppc9a.c +++ b/arch/powerpc/platforms/86xx/gef_ppc9a.c @@ -37,9 +37,9 @@ #include <sysdev/fsl_pci.h> #include <sysdev/fsl_soc.h> +#include <sysdev/ge/ge_pic.h> #include "mpc86xx.h" -#include "gef_pic.h" #undef DEBUG diff --git a/arch/powerpc/platforms/86xx/gef_sbc310.c b/arch/powerpc/platforms/86xx/gef_sbc310.c index 3ecee25..710db69 100644 --- a/arch/powerpc/platforms/86xx/gef_sbc310.c +++ b/arch/powerpc/platforms/86xx/gef_sbc310.c @@ -37,9 +37,9 @@ #include <sysdev/fsl_pci.h> #include <sysdev/fsl_soc.h> +#include <sysdev/ge/ge_pic.h> #include "mpc86xx.h" -#include "gef_pic.h" #undef DEBUG diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c b/arch/powerpc/platforms/86xx/gef_sbc610.c index 5090d608..4a13d2f 100644 --- a/arch/powerpc/platforms/86xx/gef_sbc610.c +++ b/arch/powerpc/platforms/86xx/gef_sbc610.c @@ -37,9 +37,9 @@ #include <sysdev/fsl_pci.h> #include <sysdev/fsl_soc.h> +#include <sysdev/ge/ge_pic.h> #include "mpc86xx.h" -#include "gef_pic.h" #undef DEBUG diff --git a/arch/powerpc/platforms/86xx/pic.c b/arch/powerpc/platforms/86xx/pic.c index 52bbfa0..22cc3571 100644 --- a/arch/powerpc/platforms/86xx/pic.c +++ b/arch/powerpc/platforms/86xx/pic.c @@ -37,9 +37,8 @@ void __init mpc86xx_init_irq(void) int cascade_irq; #endif - struct mpic *mpic = mpic_alloc(NULL, 0, - MPIC_WANTS_RESET | MPIC_BIG_ENDIAN | - MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU, + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | + MPIC_SINGLE_DEST_CPU, 0, 256, " MPIC "); BUG_ON(mpic == NULL); diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index 0cfb46d..a35ca44 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -2,7 +2,6 @@ menu "Platform support" source "arch/powerpc/platforms/powernv/Kconfig" source "arch/powerpc/platforms/pseries/Kconfig" -source "arch/powerpc/platforms/iseries/Kconfig" source "arch/powerpc/platforms/chrp/Kconfig" source "arch/powerpc/platforms/512x/Kconfig" source "arch/powerpc/platforms/52xx/Kconfig" @@ -87,6 +86,14 @@ config MPIC_WEIRD bool default n +config MPIC_MSGR + bool "MPIC message register support" + depends on MPIC + default n + help + Enables support for the MPIC message registers. These + registers are used for inter-processor communication. + config PPC_I8259 bool default n @@ -138,7 +145,7 @@ config MPIC_BROKEN_REGREAD of the register contents in software. config IBMVIO - depends on PPC_PSERIES || PPC_ISERIES + depends on PPC_PSERIES bool default y diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile index 2635a22..879b4a4 100644 --- a/arch/powerpc/platforms/Makefile +++ b/arch/powerpc/platforms/Makefile @@ -16,7 +16,6 @@ obj-$(CONFIG_FSL_SOC_BOOKE) += 85xx/ obj-$(CONFIG_PPC_86xx) += 86xx/ obj-$(CONFIG_PPC_POWERNV) += powernv/ obj-$(CONFIG_PPC_PSERIES) += pseries/ -obj-$(CONFIG_PPC_ISERIES) += iseries/ obj-$(CONFIG_PPC_MAPLE) += maple/ obj-$(CONFIG_PPC_PASEMI) += pasemi/ obj-$(CONFIG_PPC_CELL) += cell/ diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index 62002a7..fa3e294 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -197,7 +197,8 @@ static void __init mpic_init_IRQ(void) /* The MPIC driver will get everything it needs from the * device-tree, just pass 0 to all arguments */ - mpic = mpic_alloc(dn, 0, MPIC_SECONDARY, 0, 0, " MPIC "); + mpic = mpic_alloc(dn, 0, MPIC_SECONDARY | MPIC_NO_RESET, + 0, 0, " MPIC "); if (mpic == NULL) continue; mpic_init(mpic); diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index 4a3d90e..1d75c92 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -646,6 +646,7 @@ long spufs_create(struct path *path, struct dentry *dentry, out: mutex_unlock(&path->dentry->d_inode->i_mutex); + dput(dentry); return ret; } diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c index 8591bb6..5665dcc 100644 --- a/arch/powerpc/platforms/cell/spufs/syscalls.c +++ b/arch/powerpc/platforms/cell/spufs/syscalls.c @@ -70,8 +70,6 @@ static long do_spu_create(const char __user *pathname, unsigned int flags, ret = PTR_ERR(dentry); if (!IS_ERR(dentry)) { ret = spufs_create(&path, dentry, flags, mode, neighbor); - mutex_unlock(&path.dentry->d_inode->i_mutex); - dput(dentry); path_put(&path); } diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c index f1f17bb..c665d7d 100644 --- a/arch/powerpc/platforms/chrp/setup.c +++ b/arch/powerpc/platforms/chrp/setup.c @@ -435,7 +435,8 @@ static void __init chrp_find_openpic(void) if (len > 1) isu_size = iranges[3]; - chrp_mpic = mpic_alloc(np, opaddr, 0, isu_size, 0, " MPIC "); + chrp_mpic = mpic_alloc(np, opaddr, MPIC_NO_RESET, + isu_size, 0, " MPIC "); if (chrp_mpic == NULL) { printk(KERN_ERR "Failed to allocate MPIC structure\n"); goto bail; diff --git a/arch/powerpc/platforms/embedded6xx/holly.c b/arch/powerpc/platforms/embedded6xx/holly.c index 9cfcf20..ab51b21 100644 --- a/arch/powerpc/platforms/embedded6xx/holly.c +++ b/arch/powerpc/platforms/embedded6xx/holly.c @@ -154,11 +154,9 @@ static void __init holly_init_IRQ(void) struct device_node *cascade_node = NULL; #endif - mpic = mpic_alloc(NULL, 0, - MPIC_BIG_ENDIAN | MPIC_WANTS_RESET | + mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108, - 24, - NR_IRQS-4, /* num_sources used */ + 24, 0, "Tsi108_PIC"); BUG_ON(mpic == NULL); diff --git a/arch/powerpc/platforms/embedded6xx/linkstation.c b/arch/powerpc/platforms/embedded6xx/linkstation.c index bcfad92..455e7c08 100644 --- a/arch/powerpc/platforms/embedded6xx/linkstation.c +++ b/arch/powerpc/platforms/embedded6xx/linkstation.c @@ -82,8 +82,7 @@ static void __init linkstation_init_IRQ(void) { struct mpic *mpic; - mpic = mpic_alloc(NULL, 0, MPIC_WANTS_RESET, - 4, 32, " EPIC "); + mpic = mpic_alloc(NULL, 0, 0, 4, 0, " EPIC "); BUG_ON(mpic == NULL); /* PCI IRQs */ diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c index f3350d7..74ccce3 100644 --- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c +++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c @@ -108,11 +108,9 @@ static void __init mpc7448_hpc2_init_IRQ(void) struct device_node *cascade_node = NULL; #endif - mpic = mpic_alloc(NULL, 0, - MPIC_BIG_ENDIAN | MPIC_WANTS_RESET | + mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108, - 24, - NR_IRQS-4, /* num_sources used */ + 24, 0, "Tsi108_PIC"); BUG_ON(mpic == NULL); diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c index afa6388..e0ed3c7 100644 --- a/arch/powerpc/platforms/embedded6xx/storcenter.c +++ b/arch/powerpc/platforms/embedded6xx/storcenter.c @@ -84,8 +84,7 @@ static void __init storcenter_init_IRQ(void) { struct mpic *mpic; - mpic = mpic_alloc(NULL, 0, MPIC_WANTS_RESET, - 16, 32, " OpenPIC "); + mpic = mpic_alloc(NULL, 0, 0, 16, 0, " OpenPIC "); BUG_ON(mpic == NULL); /* diff --git a/arch/powerpc/platforms/iseries/Kconfig b/arch/powerpc/platforms/iseries/Kconfig deleted file mode 100644 index 63835e0..0000000 --- a/arch/powerpc/platforms/iseries/Kconfig +++ /dev/null @@ -1,39 +0,0 @@ -config PPC_ISERIES - bool "IBM Legacy iSeries" - depends on PPC64 && PPC_BOOK3S - select OF_DYNAMIC - select PPC_SMP_MUXED_IPI - select PPC_INDIRECT_PIO - select PPC_INDIRECT_MMIO - select PPC_PCI_CHOICE if EXPERT - -menu "iSeries device drivers" - depends on PPC_ISERIES - -config VIODASD - tristate "iSeries Virtual I/O disk support" - depends on BLOCK - select VIOPATH - help - If you are running on an iSeries system and you want to use - virtual disks created and managed by OS/400, say Y. - -config VIOCD - tristate "iSeries Virtual I/O CD support" - depends on BLOCK - select VIOPATH - help - If you are running Linux on an IBM iSeries system and you want to - read a CD drive owned by OS/400, say Y here. - -config VIOTAPE - tristate "iSeries Virtual Tape Support" - select VIOPATH - help - If you are running Linux on an iSeries system and you want Linux - to read and/or write a tape drive owned by OS/400, say Y here. - -endmenu - -config VIOPATH - bool diff --git a/arch/powerpc/platforms/iseries/Makefile b/arch/powerpc/platforms/iseries/Makefile deleted file mode 100644 index a7602b1..0000000 --- a/arch/powerpc/platforms/iseries/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -ccflags-y := -mno-minimal-toc - -obj-y += exception.o -obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o dt.o mf.o lpevents.o \ - hvcall.o proc.o htab.o iommu.o misc.o irq.o -obj-$(CONFIG_PCI) += pci.o -obj-$(CONFIG_SMP) += smp.o -obj-$(CONFIG_VIOPATH) += viopath.o vio.o -obj-$(CONFIG_MODULES) += ksyms.o diff --git a/arch/powerpc/platforms/iseries/call_hpt.h b/arch/powerpc/platforms/iseries/call_hpt.h deleted file mode 100644 index 8d95fe4b..0000000 --- a/arch/powerpc/platforms/iseries/call_hpt.h +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _PLATFORMS_ISERIES_CALL_HPT_H -#define _PLATFORMS_ISERIES_CALL_HPT_H - -/* - * This file contains the "hypervisor call" interface which is used to - * drive the hypervisor from the OS. - */ - -#include <asm/iseries/hv_call_sc.h> -#include <asm/iseries/hv_types.h> -#include <asm/mmu.h> - -#define HvCallHptGetHptAddress HvCallHpt + 0 -#define HvCallHptGetHptPages HvCallHpt + 1 -#define HvCallHptSetPp HvCallHpt + 5 -#define HvCallHptSetSwBits HvCallHpt + 6 -#define HvCallHptUpdate HvCallHpt + 7 -#define HvCallHptInvalidateNoSyncICache HvCallHpt + 8 -#define HvCallHptGet HvCallHpt + 11 -#define HvCallHptFindNextValid HvCallHpt + 12 -#define HvCallHptFindValid HvCallHpt + 13 -#define HvCallHptAddValidate HvCallHpt + 16 -#define HvCallHptInvalidateSetSwBitsGet HvCallHpt + 18 - - -static inline u64 HvCallHpt_getHptAddress(void) -{ - return HvCall0(HvCallHptGetHptAddress); -} - -static inline u64 HvCallHpt_getHptPages(void) -{ - return HvCall0(HvCallHptGetHptPages); -} - -static inline void HvCallHpt_setPp(u32 hpteIndex, u8 value) -{ - HvCall2(HvCallHptSetPp, hpteIndex, value); -} - -static inline void HvCallHpt_setSwBits(u32 hpteIndex, u8 bitson, u8 bitsoff) -{ - HvCall3(HvCallHptSetSwBits, hpteIndex, bitson, bitsoff); -} - -static inline void HvCallHpt_invalidateNoSyncICache(u32 hpteIndex) -{ - HvCall1(HvCallHptInvalidateNoSyncICache, hpteIndex); -} - -static inline u64 HvCallHpt_invalidateSetSwBitsGet(u32 hpteIndex, u8 bitson, - u8 bitsoff) -{ - u64 compressedStatus; - - compressedStatus = HvCall4(HvCallHptInvalidateSetSwBitsGet, - hpteIndex, bitson, bitsoff, 1); - HvCall1(HvCallHptInvalidateNoSyncICache, hpteIndex); - return compressedStatus; -} - -static inline u64 HvCallHpt_findValid(struct hash_pte *hpte, u64 vpn) -{ - return HvCall3Ret16(HvCallHptFindValid, hpte, vpn, 0, 0); -} - -static inline u64 HvCallHpt_findNextValid(struct hash_pte *hpte, u32 hpteIndex, - u8 bitson, u8 bitsoff) -{ - return HvCall3Ret16(HvCallHptFindNextValid, hpte, hpteIndex, - bitson, bitsoff); -} - -static inline void HvCallHpt_get(struct hash_pte *hpte, u32 hpteIndex) -{ - HvCall2Ret16(HvCallHptGet, hpte, hpteIndex, 0); -} - -static inline void HvCallHpt_addValidate(u32 hpteIndex, u32 hBit, - struct hash_pte *hpte) -{ - HvCall4(HvCallHptAddValidate, hpteIndex, hBit, hpte->v, hpte->r); -} - -#endif /* _PLATFORMS_ISERIES_CALL_HPT_H */ diff --git a/arch/powerpc/platforms/iseries/call_pci.h b/arch/powerpc/platforms/iseries/call_pci.h deleted file mode 100644 index dbdf698..0000000 --- a/arch/powerpc/platforms/iseries/call_pci.h +++ /dev/null @@ -1,309 +0,0 @@ -/* - * Provides the Hypervisor PCI calls for iSeries Linux Parition. - * Copyright (C) 2001 <Wayne G Holm> <IBM Corporation> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the: - * Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, - * Boston, MA 02111-1307 USA - * - * Change Activity: - * Created, Jan 9, 2001 - */ - -#ifndef _PLATFORMS_ISERIES_CALL_PCI_H -#define _PLATFORMS_ISERIES_CALL_PCI_H - -#include <asm/iseries/hv_call_sc.h> -#include <asm/iseries/hv_types.h> - -/* - * DSA == Direct Select Address - * this struct must be 64 bits in total - */ -struct HvCallPci_DsaAddr { - u16 busNumber; /* PHB index? */ - u8 subBusNumber; /* PCI bus number? */ - u8 deviceId; /* device and function? */ - u8 barNumber; - u8 reserved[3]; -}; - -union HvDsaMap { - u64 DsaAddr; - struct HvCallPci_DsaAddr Dsa; -}; - -struct HvCallPci_LoadReturn { - u64 rc; - u64 value; -}; - -enum HvCallPci_DeviceType { - HvCallPci_NodeDevice = 1, - HvCallPci_SpDevice = 2, - HvCallPci_IopDevice = 3, - HvCallPci_BridgeDevice = 4, - HvCallPci_MultiFunctionDevice = 5, - HvCallPci_IoaDevice = 6 -}; - - -struct HvCallPci_DeviceInfo { - u32 deviceType; /* See DeviceType enum for values */ -}; - -struct HvCallPci_BusUnitInfo { - u32 sizeReturned; /* length of data returned */ - u32 deviceType; /* see DeviceType enum for values */ -}; - -struct HvCallPci_BridgeInfo { - struct HvCallPci_BusUnitInfo busUnitInfo; /* Generic bus unit info */ - u8 subBusNumber; /* Bus number of secondary bus */ - u8 maxAgents; /* Max idsels on secondary bus */ - u8 maxSubBusNumber; /* Max Sub Bus */ - u8 logicalSlotNumber; /* Logical Slot Number for IOA */ -}; - - -/* - * Maximum BusUnitInfo buffer size. Provided for clients so - * they can allocate a buffer big enough for any type of bus - * unit. Increase as needed. - */ -enum {HvCallPci_MaxBusUnitInfoSize = 128}; - -struct HvCallPci_BarParms { - u64 vaddr; - u64 raddr; - u64 size; - u64 protectStart; - u64 protectEnd; - u64 relocationOffset; - u64 pciAddress; - u64 reserved[3]; -}; - -enum HvCallPci_VpdType { - HvCallPci_BusVpd = 1, - HvCallPci_BusAdapterVpd = 2 -}; - -#define HvCallPciConfigLoad8 HvCallPci + 0 -#define HvCallPciConfigLoad16 HvCallPci + 1 -#define HvCallPciConfigLoad32 HvCallPci + 2 -#define HvCallPciConfigStore8 HvCallPci + 3 -#define HvCallPciConfigStore16 HvCallPci + 4 -#define HvCallPciConfigStore32 HvCallPci + 5 -#define HvCallPciEoi HvCallPci + 16 -#define HvCallPciGetBarParms HvCallPci + 18 -#define HvCallPciMaskFisr HvCallPci + 20 -#define HvCallPciUnmaskFisr HvCallPci + 21 -#define HvCallPciSetSlotReset HvCallPci + 25 -#define HvCallPciGetDeviceInfo HvCallPci + 27 -#define HvCallPciGetCardVpd HvCallPci + 28 -#define HvCallPciBarLoad8 HvCallPci + 40 -#define HvCallPciBarLoad16 HvCallPci + 41 -#define HvCallPciBarLoad32 HvCallPci + 42 -#define HvCallPciBarLoad64 HvCallPci + 43 -#define HvCallPciBarStore8 HvCallPci + 44 -#define HvCallPciBarStore16 HvCallPci + 45 -#define HvCallPciBarStore32 HvCallPci + 46 -#define HvCallPciBarStore64 HvCallPci + 47 -#define HvCallPciMaskInterrupts HvCallPci + 48 -#define HvCallPciUnmaskInterrupts HvCallPci + 49 -#define HvCallPciGetBusUnitInfo HvCallPci + 50 - -static inline u64 HvCallPci_configLoad16(u16 busNumber, u8 subBusNumber, - u8 deviceId, u32 offset, u16 *value) -{ - struct HvCallPci_DsaAddr dsa; - struct HvCallPci_LoadReturn retVal; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumber; - dsa.subBusNumber = subBusNumber; - dsa.deviceId = deviceId; - - HvCall3Ret16(HvCallPciConfigLoad16, &retVal, *(u64 *)&dsa, offset, 0); - - *value = retVal.value; - - return retVal.rc; -} - -static inline u64 HvCallPci_configLoad32(u16 busNumber, u8 subBusNumber, - u8 deviceId, u32 offset, u32 *value) -{ - struct HvCallPci_DsaAddr dsa; - struct HvCallPci_LoadReturn retVal; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumber; - dsa.subBusNumber = subBusNumber; - dsa.deviceId = deviceId; - - HvCall3Ret16(HvCallPciConfigLoad32, &retVal, *(u64 *)&dsa, offset, 0); - - *value = retVal.value; - - return retVal.rc; -} - -static inline u64 HvCallPci_configStore8(u16 busNumber, u8 subBusNumber, - u8 deviceId, u32 offset, u8 value) -{ - struct HvCallPci_DsaAddr dsa; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumber; - dsa.subBusNumber = subBusNumber; - dsa.deviceId = deviceId; - - return HvCall4(HvCallPciConfigStore8, *(u64 *)&dsa, offset, value, 0); -} - -static inline u64 HvCallPci_eoi(u16 busNumberParm, u8 subBusParm, - u8 deviceIdParm) -{ - struct HvCallPci_DsaAddr dsa; - struct HvCallPci_LoadReturn retVal; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumberParm; - dsa.subBusNumber = subBusParm; - dsa.deviceId = deviceIdParm; - - HvCall1Ret16(HvCallPciEoi, &retVal, *(u64*)&dsa); - - return retVal.rc; -} - -static inline u64 HvCallPci_getBarParms(u16 busNumberParm, u8 subBusParm, - u8 deviceIdParm, u8 barNumberParm, u64 parms, u32 sizeofParms) -{ - struct HvCallPci_DsaAddr dsa; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumberParm; - dsa.subBusNumber = subBusParm; - dsa.deviceId = deviceIdParm; - dsa.barNumber = barNumberParm; - - return HvCall3(HvCallPciGetBarParms, *(u64*)&dsa, parms, sizeofParms); -} - -static inline u64 HvCallPci_maskFisr(u16 busNumberParm, u8 subBusParm, - u8 deviceIdParm, u64 fisrMask) -{ - struct HvCallPci_DsaAddr dsa; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumberParm; - dsa.subBusNumber = subBusParm; - dsa.deviceId = deviceIdParm; - - return HvCall2(HvCallPciMaskFisr, *(u64*)&dsa, fisrMask); -} - -static inline u64 HvCallPci_unmaskFisr(u16 busNumberParm, u8 subBusParm, - u8 deviceIdParm, u64 fisrMask) -{ - struct HvCallPci_DsaAddr dsa; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumberParm; - dsa.subBusNumber = subBusParm; - dsa.deviceId = deviceIdParm; - - return HvCall2(HvCallPciUnmaskFisr, *(u64*)&dsa, fisrMask); -} - -static inline u64 HvCallPci_getDeviceInfo(u16 busNumberParm, u8 subBusParm, - u8 deviceNumberParm, u64 parms, u32 sizeofParms) -{ - struct HvCallPci_DsaAddr dsa; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumberParm; - dsa.subBusNumber = subBusParm; - dsa.deviceId = deviceNumberParm << 4; - - return HvCall3(HvCallPciGetDeviceInfo, *(u64*)&dsa, parms, sizeofParms); -} - -static inline u64 HvCallPci_maskInterrupts(u16 busNumberParm, u8 subBusParm, - u8 deviceIdParm, u64 interruptMask) -{ - struct HvCallPci_DsaAddr dsa; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumberParm; - dsa.subBusNumber = subBusParm; - dsa.deviceId = deviceIdParm; - - return HvCall2(HvCallPciMaskInterrupts, *(u64*)&dsa, interruptMask); -} - -static inline u64 HvCallPci_unmaskInterrupts(u16 busNumberParm, u8 subBusParm, - u8 deviceIdParm, u64 interruptMask) -{ - struct HvCallPci_DsaAddr dsa; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumberParm; - dsa.subBusNumber = subBusParm; - dsa.deviceId = deviceIdParm; - - return HvCall2(HvCallPciUnmaskInterrupts, *(u64*)&dsa, interruptMask); -} - -static inline u64 HvCallPci_getBusUnitInfo(u16 busNumberParm, u8 subBusParm, - u8 deviceIdParm, u64 parms, u32 sizeofParms) -{ - struct HvCallPci_DsaAddr dsa; - - *((u64*)&dsa) = 0; - - dsa.busNumber = busNumberParm; - dsa.subBusNumber = subBusParm; - dsa.deviceId = deviceIdParm; - - return HvCall3(HvCallPciGetBusUnitInfo, *(u64*)&dsa, parms, - sizeofParms); -} - -static inline int HvCallPci_getBusVpd(u16 busNumParm, u64 destParm, - u16 sizeParm) -{ - u64 xRc = HvCall4(HvCallPciGetCardVpd, busNumParm, destParm, - sizeParm, HvCallPci_BusVpd); - if (xRc == -1) - return -1; - else - return xRc & 0xFFFF; -} - -#endif /* _PLATFORMS_ISERIES_CALL_PCI_H */ diff --git a/arch/powerpc/platforms/iseries/call_sm.h b/arch/powerpc/platforms/iseries/call_sm.h deleted file mode 100644 index c7e2516..0000000 --- a/arch/powerpc/platforms/iseries/call_sm.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _ISERIES_CALL_SM_H -#define _ISERIES_CALL_SM_H - -/* - * This file contains the "hypervisor call" interface which is used to - * drive the hypervisor from the OS. - */ - -#include <asm/iseries/hv_call_sc.h> -#include <asm/iseries/hv_types.h> - -#define HvCallSmGet64BitsOfAccessMap HvCallSm + 11 - -static inline u64 HvCallSm_get64BitsOfAccessMap(HvLpIndex lpIndex, - u64 indexIntoBitMap) -{ - return HvCall2(HvCallSmGet64BitsOfAccessMap, lpIndex, indexIntoBitMap); -} - -#endif /* _ISERIES_CALL_SM_H */ diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c deleted file mode 100644 index f0491cc..0000000 --- a/arch/powerpc/platforms/iseries/dt.c +++ /dev/null @@ -1,643 +0,0 @@ -/* - * Copyright (C) 2005-2006 Michael Ellerman, IBM Corporation - * Copyright (C) 2000-2004, IBM Corporation - * - * Description: - * This file contains all the routines to build a flattened device - * tree for a legacy iSeries machine. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#undef DEBUG - -#include <linux/types.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/pci_regs.h> -#include <linux/pci_ids.h> -#include <linux/threads.h> -#include <linux/bitops.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/if_ether.h> /* ETH_ALEN */ - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/lppaca.h> -#include <asm/cputable.h> -#include <asm/abs_addr.h> -#include <asm/system.h> -#include <asm/iseries/hv_types.h> -#include <asm/iseries/hv_lp_config.h> -#include <asm/iseries/hv_call_xm.h> -#include <asm/udbg.h> - -#include "processor_vpd.h" -#include "call_hpt.h" -#include "call_pci.h" -#include "pci.h" -#include "it_exp_vpd_panel.h" -#include "naca.h" - -#ifdef DEBUG -#define DBG(fmt...) udbg_printf(fmt) -#else -#define DBG(fmt...) -#endif - -/* - * These are created by the linker script at the start and end - * of the section containing all the strings marked with the DS macro. - */ -extern char __dt_strings_start[]; -extern char __dt_strings_end[]; - -#define DS(s) ({ \ - static const char __s[] __attribute__((section(".dt_strings"))) = s; \ - __s; \ -}) - -struct iseries_flat_dt { - struct boot_param_header header; - u64 reserve_map[2]; -}; - -static void * __initdata dt_data; - -/* - * Putting these strings here keeps them out of the .dt_strings section - * that we capture for the strings blob of the flattened device tree. - */ -static char __initdata device_type_cpu[] = "cpu"; -static char __initdata device_type_memory[] = "memory"; -static char __initdata device_type_serial[] = "serial"; -static char __initdata device_type_network[] = "network"; -static char __initdata device_type_pci[] = "pci"; -static char __initdata device_type_vdevice[] = "vdevice"; -static char __initdata device_type_vscsi[] = "vscsi"; - - -/* EBCDIC to ASCII conversion routines */ - -static unsigned char __init e2a(unsigned char x) -{ - switch (x) { - case 0x81 ... 0x89: - return x - 0x81 + 'a'; - case 0x91 ... 0x99: - return x - 0x91 + 'j'; - case 0xA2 ... 0xA9: - return x - 0xA2 + 's'; - case 0xC1 ... 0xC9: - return x - 0xC1 + 'A'; - case 0xD1 ... 0xD9: - return x - 0xD1 + 'J'; - case 0xE2 ... 0xE9: - return x - 0xE2 + 'S'; - case 0xF0 ... 0xF9: - return x - 0xF0 + '0'; - } - return ' '; -} - -static unsigned char * __init strne2a(unsigned char *dest, - const unsigned char *src, size_t n) -{ - int i; - - n = strnlen(src, n); - - for (i = 0; i < n; i++) - dest[i] = e2a(src[i]); - - return dest; -} - -static struct iseries_flat_dt * __init dt_init(void) -{ - struct iseries_flat_dt *dt; - unsigned long str_len; - - str_len = __dt_strings_end - __dt_strings_start; - dt = (struct iseries_flat_dt *)ALIGN(klimit, 8); - dt->header.off_mem_rsvmap = - offsetof(struct iseries_flat_dt, reserve_map); - dt->header.off_dt_strings = ALIGN(sizeof(*dt), 8); - dt->header.off_dt_struct = dt->header.off_dt_strings - + ALIGN(str_len, 8); - dt_data = (void *)((unsigned long)dt + dt->header.off_dt_struct); - dt->header.dt_strings_size = str_len; - - /* There is no notion of hardware cpu id on iSeries */ - dt->header.boot_cpuid_phys = smp_processor_id(); - - memcpy((char *)dt + dt->header.off_dt_strings, __dt_strings_start, - str_len); - - dt->header.magic = OF_DT_HEADER; - dt->header.version = 0x10; - dt->header.last_comp_version = 0x10; - - dt->reserve_map[0] = 0; - dt->reserve_map[1] = 0; - - return dt; -} - -static void __init dt_push_u32(struct iseries_flat_dt *dt, u32 value) -{ - *((u32 *)dt_data) = value; - dt_data += sizeof(u32); -} - -#ifdef notyet -static void __init dt_push_u64(struct iseries_flat_dt *dt, u64 value) -{ - *((u64 *)dt_data) = value; - dt_data += sizeof(u64); -} -#endif - -static void __init dt_push_bytes(struct iseries_flat_dt *dt, const char *data, - int len) -{ - memcpy(dt_data, data, len); - dt_data += ALIGN(len, 4); -} - -static void __init dt_start_node(struct iseries_flat_dt *dt, const char *name) -{ - dt_push_u32(dt, OF_DT_BEGIN_NODE); - dt_push_bytes(dt, name, strlen(name) + 1); -} - -#define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE) - -static void __init __dt_prop(struct iseries_flat_dt *dt, const char *name, - const void *data, int len) -{ - unsigned long offset; - - dt_push_u32(dt, OF_DT_PROP); - - /* Length of the data */ - dt_push_u32(dt, len); - - offset = name - __dt_strings_start; - - /* The offset of the properties name in the string blob. */ - dt_push_u32(dt, (u32)offset); - - /* The actual data. */ - dt_push_bytes(dt, data, len); -} -#define dt_prop(dt, name, data, len) __dt_prop((dt), DS(name), (data), (len)) - -#define dt_prop_str(dt, name, data) \ - dt_prop((dt), name, (data), strlen((data)) + 1); /* + 1 for NULL */ - -static void __init __dt_prop_u32(struct iseries_flat_dt *dt, const char *name, - u32 data) -{ - __dt_prop(dt, name, &data, sizeof(u32)); -} -#define dt_prop_u32(dt, name, data) __dt_prop_u32((dt), DS(name), (data)) - -static void __init __maybe_unused __dt_prop_u64(struct iseries_flat_dt *dt, - const char *name, u64 data) -{ - __dt_prop(dt, name, &data, sizeof(u64)); -} -#define dt_prop_u64(dt, name, data) __dt_prop_u64((dt), DS(name), (data)) - -#define dt_prop_u64_list(dt, name, data, n) \ - dt_prop((dt), name, (data), sizeof(u64) * (n)) - -#define dt_prop_u32_list(dt, name, data, n) \ - dt_prop((dt), name, (data), sizeof(u32) * (n)) - -#define dt_prop_empty(dt, name) dt_prop((dt), name, NULL, 0) - -static void __init dt_cpus(struct iseries_flat_dt *dt) -{ - unsigned char buf[32]; - unsigned char *p; - unsigned int i, index; - struct IoHriProcessorVpd *d; - u32 pft_size[2]; - - /* yuck */ - snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name); - p = strchr(buf, ' '); - if (!p) p = buf + strlen(buf); - - dt_start_node(dt, "cpus"); - dt_prop_u32(dt, "#address-cells", 1); - dt_prop_u32(dt, "#size-cells", 0); - - pft_size[0] = 0; /* NUMA CEC cookie, 0 for non NUMA */ - pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE); - - for (i = 0; i < NR_LPPACAS; i++) { - if (lppaca[i].dyn_proc_status >= 2) - continue; - - snprintf(p, 32 - (p - buf), "@%d", i); - dt_start_node(dt, buf); - - dt_prop_str(dt, "device_type", device_type_cpu); - - index = lppaca[i].dyn_hv_phys_proc_index; - d = &xIoHriProcessorVpd[index]; - - dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024); - dt_prop_u32(dt, "i-cache-line-size", d->xInstCacheOperandSize); - - dt_prop_u32(dt, "d-cache-size", d->xDataL1CacheSizeKB * 1024); - dt_prop_u32(dt, "d-cache-line-size", d->xDataCacheOperandSize); - - /* magic conversions to Hz copied from old code */ - dt_prop_u32(dt, "clock-frequency", - ((1UL << 34) * 1000000) / d->xProcFreq); - dt_prop_u32(dt, "timebase-frequency", - ((1UL << 32) * 1000000) / d->xTimeBaseFreq); - - dt_prop_u32(dt, "reg", i); - - dt_prop_u32_list(dt, "ibm,pft-size", pft_size, 2); - - dt_end_node(dt); - } - - dt_end_node(dt); -} - -static void __init dt_model(struct iseries_flat_dt *dt) -{ - char buf[16] = "IBM,"; - - /* N.B. lparcfg.c knows about the "IBM," prefixes ... */ - /* "IBM," + mfgId[2:3] + systemSerial[1:5] */ - strne2a(buf + 4, xItExtVpdPanel.mfgID + 2, 2); - strne2a(buf + 6, xItExtVpdPanel.systemSerial + 1, 5); - buf[11] = '\0'; - dt_prop_str(dt, "system-id", buf); - - /* "IBM," + machineType[0:4] */ - strne2a(buf + 4, xItExtVpdPanel.machineType, 4); - buf[8] = '\0'; - dt_prop_str(dt, "model", buf); - - dt_prop_str(dt, "compatible", "IBM,iSeries"); - dt_prop_u32(dt, "ibm,partition-no", HvLpConfig_getLpIndex()); -} - -static void __init dt_initrd(struct iseries_flat_dt *dt) -{ -#ifdef CONFIG_BLK_DEV_INITRD - if (naca.xRamDisk) { - dt_prop_u64(dt, "linux,initrd-start", (u64)naca.xRamDisk); - dt_prop_u64(dt, "linux,initrd-end", - (u64)naca.xRamDisk + naca.xRamDiskSize * HW_PAGE_SIZE); - } -#endif -} - -static void __init dt_do_vdevice(struct iseries_flat_dt *dt, - const char *name, u32 reg, int unit, - const char *type, const char *compat, int end) -{ - char buf[32]; - - snprintf(buf, 32, "%s@%08x", name, reg + ((unit >= 0) ? unit : 0)); - dt_start_node(dt, buf); - dt_prop_str(dt, "device_type", type); - if (compat) - dt_prop_str(dt, "compatible", compat); - dt_prop_u32(dt, "reg", reg + ((unit >= 0) ? unit : 0)); - if (unit >= 0) - dt_prop_u32(dt, "linux,unit_address", unit); - if (end) - dt_end_node(dt); -} - -static void __init dt_vdevices(struct iseries_flat_dt *dt) -{ - u32 reg = 0; - HvLpIndexMap vlan_map; - int i; - - dt_start_node(dt, "vdevice"); - dt_prop_str(dt, "device_type", device_type_vdevice); - dt_prop_str(dt, "compatible", "IBM,iSeries-vdevice"); - dt_prop_u32(dt, "#address-cells", 1); - dt_prop_u32(dt, "#size-cells", 0); - - dt_do_vdevice(dt, "vty", reg, -1, device_type_serial, - "IBM,iSeries-vty", 1); - reg++; - - dt_do_vdevice(dt, "v-scsi", reg, -1, device_type_vscsi, - "IBM,v-scsi", 1); - reg++; - - vlan_map = HvLpConfig_getVirtualLanIndexMap(); - for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) { - unsigned char mac_addr[ETH_ALEN]; - - if ((vlan_map & (0x8000 >> i)) == 0) - continue; - dt_do_vdevice(dt, "l-lan", reg, i, device_type_network, - "IBM,iSeries-l-lan", 0); - mac_addr[0] = 0x02; - mac_addr[1] = 0x01; - mac_addr[2] = 0xff; - mac_addr[3] = i; - mac_addr[4] = 0xff; - mac_addr[5] = HvLpConfig_getLpIndex_outline(); - dt_prop(dt, "local-mac-address", (char *)mac_addr, ETH_ALEN); - dt_prop(dt, "mac-address", (char *)mac_addr, ETH_ALEN); - dt_prop_u32(dt, "max-frame-size", 9000); - dt_prop_u32(dt, "address-bits", 48); - - dt_end_node(dt); - } - - dt_end_node(dt); -} - -struct pci_class_name { - u16 code; - const char *name; - const char *type; -}; - -static struct pci_class_name __initdata pci_class_name[] = { - { PCI_CLASS_NETWORK_ETHERNET, "ethernet", device_type_network }, -}; - -static struct pci_class_name * __init dt_find_pci_class_name(u16 class_code) -{ - struct pci_class_name *cp; - - for (cp = pci_class_name; - cp < &pci_class_name[ARRAY_SIZE(pci_class_name)]; cp++) - if (cp->code == class_code) - return cp; - return NULL; -} - -/* - * This assumes that the node slot is always on the primary bus! - */ -static void __init scan_bridge_slot(struct iseries_flat_dt *dt, - HvBusNumber bus, struct HvCallPci_BridgeInfo *bridge_info) -{ - HvSubBusNumber sub_bus = bridge_info->subBusNumber; - u16 vendor_id; - u16 device_id; - u32 class_id; - int err; - char buf[32]; - u32 reg[5]; - int id_sel = ISERIES_GET_DEVICE_FROM_SUBBUS(sub_bus); - int function = ISERIES_GET_FUNCTION_FROM_SUBBUS(sub_bus); - HvAgentId eads_id_sel = ISERIES_PCI_AGENTID(id_sel, function); - u8 devfn; - struct pci_class_name *cp; - - /* - * Connect all functions of any device found. - */ - for (id_sel = 1; id_sel <= bridge_info->maxAgents; id_sel++) { - for (function = 0; function < 8; function++) { - HvAgentId agent_id = ISERIES_PCI_AGENTID(id_sel, - function); - err = HvCallXm_connectBusUnit(bus, sub_bus, - agent_id, 0); - if (err) { - if (err != 0x302) - DBG("connectBusUnit(%x, %x, %x) %x\n", - bus, sub_bus, agent_id, err); - continue; - } - - err = HvCallPci_configLoad16(bus, sub_bus, agent_id, - PCI_VENDOR_ID, &vendor_id); - if (err) { - DBG("ReadVendor(%x, %x, %x) %x\n", - bus, sub_bus, agent_id, err); - continue; - } - err = HvCallPci_configLoad16(bus, sub_bus, agent_id, - PCI_DEVICE_ID, &device_id); - if (err) { - DBG("ReadDevice(%x, %x, %x) %x\n", - bus, sub_bus, agent_id, err); - continue; - } - err = HvCallPci_configLoad32(bus, sub_bus, agent_id, - PCI_CLASS_REVISION , &class_id); - if (err) { - DBG("ReadClass(%x, %x, %x) %x\n", - bus, sub_bus, agent_id, err); - continue; - } - - devfn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(eads_id_sel), - function); - cp = dt_find_pci_class_name(class_id >> 16); - if (cp && cp->name) - strncpy(buf, cp->name, sizeof(buf) - 1); - else - snprintf(buf, sizeof(buf), "pci%x,%x", - vendor_id, device_id); - buf[sizeof(buf) - 1] = '\0'; - snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), - "@%x", PCI_SLOT(devfn)); - buf[sizeof(buf) - 1] = '\0'; - if (function != 0) - snprintf(buf + strlen(buf), - sizeof(buf) - strlen(buf), - ",%x", function); - dt_start_node(dt, buf); - reg[0] = (bus << 16) | (devfn << 8); - reg[1] = 0; - reg[2] = 0; - reg[3] = 0; - reg[4] = 0; - dt_prop_u32_list(dt, "reg", reg, 5); - if (cp && (cp->type || cp->name)) - dt_prop_str(dt, "device_type", - cp->type ? cp->type : cp->name); - dt_prop_u32(dt, "vendor-id", vendor_id); - dt_prop_u32(dt, "device-id", device_id); - dt_prop_u32(dt, "class-code", class_id >> 8); - dt_prop_u32(dt, "revision-id", class_id & 0xff); - dt_prop_u32(dt, "linux,subbus", sub_bus); - dt_prop_u32(dt, "linux,agent-id", agent_id); - dt_prop_u32(dt, "linux,logical-slot-number", - bridge_info->logicalSlotNumber); - dt_end_node(dt); - - } - } -} - -static void __init scan_bridge(struct iseries_flat_dt *dt, HvBusNumber bus, - HvSubBusNumber sub_bus, int id_sel) -{ - struct HvCallPci_BridgeInfo bridge_info; - HvAgentId agent_id; - int function; - int ret; - - /* Note: hvSubBus and irq is always be 0 at this level! */ - for (function = 0; function < 8; ++function) { - agent_id = ISERIES_PCI_AGENTID(id_sel, function); - ret = HvCallXm_connectBusUnit(bus, sub_bus, agent_id, 0); - if (ret != 0) { - if (ret != 0xb) - DBG("connectBusUnit(%x, %x, %x) %x\n", - bus, sub_bus, agent_id, ret); - continue; - } - DBG("found device at bus %d idsel %d func %d (AgentId %x)\n", - bus, id_sel, function, agent_id); - ret = HvCallPci_getBusUnitInfo(bus, sub_bus, agent_id, - iseries_hv_addr(&bridge_info), - sizeof(struct HvCallPci_BridgeInfo)); - if (ret != 0) - continue; - DBG("bridge info: type %x subbus %x " - "maxAgents %x maxsubbus %x logslot %x\n", - bridge_info.busUnitInfo.deviceType, - bridge_info.subBusNumber, - bridge_info.maxAgents, - bridge_info.maxSubBusNumber, - bridge_info.logicalSlotNumber); - if (bridge_info.busUnitInfo.deviceType == - HvCallPci_BridgeDevice) - scan_bridge_slot(dt, bus, &bridge_info); - else - DBG("PCI: Invalid Bridge Configuration(0x%02X)", - bridge_info.busUnitInfo.deviceType); - } -} - -static void __init scan_phb(struct iseries_flat_dt *dt, HvBusNumber bus) -{ - struct HvCallPci_DeviceInfo dev_info; - const HvSubBusNumber sub_bus = 0; /* EADs is always 0. */ - int err; - int id_sel; - const int max_agents = 8; - - /* - * Probe for EADs Bridges - */ - for (id_sel = 1; id_sel < max_agents; ++id_sel) { - err = HvCallPci_getDeviceInfo(bus, sub_bus, id_sel, - iseries_hv_addr(&dev_info), - sizeof(struct HvCallPci_DeviceInfo)); - if (err) { - if (err != 0x302) - DBG("getDeviceInfo(%x, %x, %x) %x\n", - bus, sub_bus, id_sel, err); - continue; - } - if (dev_info.deviceType != HvCallPci_NodeDevice) { - DBG("PCI: Invalid System Configuration" - "(0x%02X) for bus 0x%02x id 0x%02x.\n", - dev_info.deviceType, bus, id_sel); - continue; - } - scan_bridge(dt, bus, sub_bus, id_sel); - } -} - -static void __init dt_pci_devices(struct iseries_flat_dt *dt) -{ - HvBusNumber bus; - char buf[32]; - u32 buses[2]; - int phb_num = 0; - - /* Check all possible buses. */ - for (bus = 0; bus < 256; bus++) { - int err = HvCallXm_testBus(bus); - - if (err) { - /* - * Check for Unexpected Return code, a clue that - * something has gone wrong. - */ - if (err != 0x0301) - DBG("Unexpected Return on Probe(0x%02X) " - "0x%04X\n", bus, err); - continue; - } - DBG("bus %d appears to exist\n", bus); - snprintf(buf, 32, "pci@%d", phb_num); - dt_start_node(dt, buf); - dt_prop_str(dt, "device_type", device_type_pci); - dt_prop_str(dt, "compatible", "IBM,iSeries-Logical-PHB"); - dt_prop_u32(dt, "#address-cells", 3); - dt_prop_u32(dt, "#size-cells", 2); - buses[0] = buses[1] = bus; - dt_prop_u32_list(dt, "bus-range", buses, 2); - scan_phb(dt, bus); - dt_end_node(dt); - phb_num++; - } -} - -static void dt_finish(struct iseries_flat_dt *dt) -{ - dt_push_u32(dt, OF_DT_END); - dt->header.totalsize = (unsigned long)dt_data - (unsigned long)dt; - klimit = ALIGN((unsigned long)dt_data, 8); -} - -void * __init build_flat_dt(unsigned long phys_mem_size) -{ - struct iseries_flat_dt *iseries_dt; - u64 tmp[2]; - - iseries_dt = dt_init(); - - dt_start_node(iseries_dt, ""); - - dt_prop_u32(iseries_dt, "#address-cells", 2); - dt_prop_u32(iseries_dt, "#size-cells", 2); - dt_model(iseries_dt); - - /* /memory */ - dt_start_node(iseries_dt, "memory@0"); - dt_prop_str(iseries_dt, "device_type", device_type_memory); - tmp[0] = 0; - tmp[1] = phys_mem_size; - dt_prop_u64_list(iseries_dt, "reg", tmp, 2); - dt_end_node(iseries_dt); - - /* /chosen */ - dt_start_node(iseries_dt, "chosen"); - dt_prop_str(iseries_dt, "bootargs", cmd_line); - dt_initrd(iseries_dt); - dt_end_node(iseries_dt); - - dt_cpus(iseries_dt); - - dt_vdevices(iseries_dt); - dt_pci_devices(iseries_dt); - - dt_end_node(iseries_dt); - - dt_finish(iseries_dt); - - return iseries_dt; -} diff --git a/arch/powerpc/platforms/iseries/exception.S b/arch/powerpc/platforms/iseries/exception.S deleted file mode 100644 index f519ee1..0000000 --- a/arch/powerpc/platforms/iseries/exception.S +++ /dev/null @@ -1,311 +0,0 @@ -/* - * Low level routines for legacy iSeries support. - * - * Extracted from head_64.S - * - * PowerPC version - * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) - * - * Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP - * Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu> - * Adapted for Power Macintosh by Paul Mackerras. - * Low-level exception handlers and MMU support - * rewritten by Paul Mackerras. - * Copyright (C) 1996 Paul Mackerras. - * - * Adapted for 64bit PowerPC by Dave Engebretsen, Peter Bergner, and - * Mike Corrigan {engebret|bergner|mikejc}@us.ibm.com - * - * This file contains the low-level support and setup for the - * PowerPC-64 platform, including trap and interrupt dispatch. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <asm/reg.h> -#include <asm/ppc_asm.h> -#include <asm/asm-offsets.h> -#include <asm/thread_info.h> -#include <asm/ptrace.h> -#include <asm/cputable.h> -#include <asm/mmu.h> - -#include "exception.h" - - .text - - .globl system_reset_iSeries -system_reset_iSeries: - bl .relative_toc - mfspr r13,SPRN_SPRG3 /* Get alpaca address */ - LOAD_REG_ADDR(r23, alpaca) - li r0,ALPACA_SIZE - sub r23,r13,r23 - divdu r24,r23,r0 /* r24 has cpu number */ - cmpwi 0,r24,0 /* Are we processor 0? */ - bne 1f - LOAD_REG_ADDR(r13, boot_paca) - mtspr SPRN_SPRG_PACA,r13 /* Save it away for the future */ - mfmsr r23 - ori r23,r23,MSR_RI - mtmsrd r23 /* RI on */ - b .__start_initialization_iSeries /* Start up the first processor */ -1: mfspr r4,SPRN_CTRLF - li r5,CTRL_RUNLATCH /* Turn off the run light */ - andc r4,r4,r5 - mtspr SPRN_CTRLT,r4 - -/* Spin on __secondary_hold_spinloop until it is updated by the boot cpu. */ -/* In the UP case we'll yield() later, and we will not access the paca anyway */ -#ifdef CONFIG_SMP -iSeries_secondary_wait_paca: - HMT_LOW - LOAD_REG_ADDR(r23, __secondary_hold_spinloop) - ld r23,0(r23) - - cmpdi 0,r23,0 - bne 2f /* go on when the master is ready */ - - /* Keep poking the Hypervisor until we're released */ - /* 8002 is a call to HvCallCfg::getLps, a harmless Hypervisor function */ - lis r3,0x8002 - rldicr r3,r3,32,15 /* r0 = (r3 << 32) & 0xffff000000000000 */ - li r0,-1 /* r0=-1 indicates a Hypervisor call */ - sc /* Invoke the hypervisor via a system call */ - b iSeries_secondary_wait_paca - -2: - HMT_MEDIUM - sync - - LOAD_REG_ADDR(r3, nr_cpu_ids) /* get number of pacas allocated */ - lwz r3,0(r3) /* nr_cpus= or NR_CPUS can limit */ - cmpld 0,r24,r3 /* is our cpu number allocated? */ - bge iSeries_secondary_yield /* no, yield forever */ - - /* Load our paca now that it's been allocated */ - LOAD_REG_ADDR(r13, paca) - ld r13,0(r13) - mulli r0,r24,PACA_SIZE - add r13,r13,r0 - mtspr SPRN_SPRG_PACA,r13 /* Save it away for the future */ - mfmsr r23 - ori r23,r23,MSR_RI - mtmsrd r23 /* RI on */ - -iSeries_secondary_smp_loop: - lbz r23,PACAPROCSTART(r13) /* Test if this processor - * should start */ - cmpwi 0,r23,0 - bne 3f /* go on when we are told */ - - HMT_LOW - /* Let the Hypervisor know we are alive */ - /* 8002 is a call to HvCallCfg::getLps, a harmless Hypervisor function */ - lis r3,0x8002 - rldicr r3,r3,32,15 /* r0 = (r3 << 32) & 0xffff000000000000 */ - li r0,-1 /* r0=-1 indicates a Hypervisor call */ - sc /* Invoke the hypervisor via a system call */ - mfspr r13,SPRN_SPRG_PACA /* Put r13 back ???? */ - b iSeries_secondary_smp_loop /* wait for signal to start */ - -3: - HMT_MEDIUM - sync - LOAD_REG_ADDR(r3,current_set) - sldi r28,r24,3 /* get current_set[cpu#] */ - ldx r3,r3,r28 - addi r1,r3,THREAD_SIZE - subi r1,r1,STACK_FRAME_OVERHEAD - - b __secondary_start /* Loop until told to go */ -#endif /* CONFIG_SMP */ - -iSeries_secondary_yield: - /* Yield the processor. This is required for non-SMP kernels - which are running on multi-threaded machines. */ - HMT_LOW - lis r3,0x8000 - rldicr r3,r3,32,15 /* r3 = (r3 << 32) & 0xffff000000000000 */ - addi r3,r3,18 /* r3 = 0x8000000000000012 which is "yield" */ - li r4,0 /* "yield timed" */ - li r5,-1 /* "yield forever" */ - li r0,-1 /* r0=-1 indicates a Hypervisor call */ - sc /* Invoke the hypervisor via a system call */ - mfspr r13,SPRN_SPRG_PACA /* Put r13 back ???? */ - b iSeries_secondary_yield /* If SMP not configured, secondaries - * loop forever */ - -/*** ISeries-LPAR interrupt handlers ***/ - - STD_EXCEPTION_ISERIES(machine_check, PACA_EXMC) - - .globl data_access_iSeries -data_access_iSeries: - mtspr SPRN_SPRG_SCRATCH0,r13 -BEGIN_FTR_SECTION - mfspr r13,SPRN_SPRG_PACA - std r9,PACA_EXSLB+EX_R9(r13) - std r10,PACA_EXSLB+EX_R10(r13) - mfspr r10,SPRN_DAR - mfspr r9,SPRN_DSISR - srdi r10,r10,60 - rlwimi r10,r9,16,0x20 - mfcr r9 - cmpwi r10,0x2c - beq .do_stab_bolted_iSeries - ld r10,PACA_EXSLB+EX_R10(r13) - std r11,PACA_EXGEN+EX_R11(r13) - ld r11,PACA_EXSLB+EX_R9(r13) - std r12,PACA_EXGEN+EX_R12(r13) - mfspr r12,SPRN_SPRG_SCRATCH0 - std r10,PACA_EXGEN+EX_R10(r13) - std r11,PACA_EXGEN+EX_R9(r13) - std r12,PACA_EXGEN+EX_R13(r13) - EXCEPTION_PROLOG_ISERIES_1 -FTR_SECTION_ELSE - EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, 0) - EXCEPTION_PROLOG_ISERIES_1 -ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_SLB) - b data_access_common - -.do_stab_bolted_iSeries: - std r11,PACA_EXSLB+EX_R11(r13) - std r12,PACA_EXSLB+EX_R12(r13) - mfspr r10,SPRN_SPRG_SCRATCH0 - std r10,PACA_EXSLB+EX_R13(r13) - EXCEPTION_PROLOG_ISERIES_1 - b .do_stab_bolted - - .globl data_access_slb_iSeries -data_access_slb_iSeries: - mtspr SPRN_SPRG_SCRATCH0,r13 /* save r13 */ - mfspr r13,SPRN_SPRG_PACA /* get paca address into r13 */ - std r3,PACA_EXSLB+EX_R3(r13) - mfspr r3,SPRN_DAR - std r9,PACA_EXSLB+EX_R9(r13) - mfcr r9 -#ifdef __DISABLED__ - cmpdi r3,0 - bge slb_miss_user_iseries -#endif - std r10,PACA_EXSLB+EX_R10(r13) - std r11,PACA_EXSLB+EX_R11(r13) - std r12,PACA_EXSLB+EX_R12(r13) - mfspr r10,SPRN_SPRG_SCRATCH0 - std r10,PACA_EXSLB+EX_R13(r13) - ld r12,PACALPPACAPTR(r13) - ld r12,LPPACASRR1(r12) - b .slb_miss_realmode - - STD_EXCEPTION_ISERIES(instruction_access, PACA_EXGEN) - - .globl instruction_access_slb_iSeries -instruction_access_slb_iSeries: - mtspr SPRN_SPRG_SCRATCH0,r13 /* save r13 */ - mfspr r13,SPRN_SPRG_PACA /* get paca address into r13 */ - std r3,PACA_EXSLB+EX_R3(r13) - ld r3,PACALPPACAPTR(r13) - ld r3,LPPACASRR0(r3) /* get SRR0 value */ - std r9,PACA_EXSLB+EX_R9(r13) - mfcr r9 -#ifdef __DISABLED__ - cmpdi r3,0 - bge slb_miss_user_iseries -#endif - std r10,PACA_EXSLB+EX_R10(r13) - std r11,PACA_EXSLB+EX_R11(r13) - std r12,PACA_EXSLB+EX_R12(r13) - mfspr r10,SPRN_SPRG_SCRATCH0 - std r10,PACA_EXSLB+EX_R13(r13) - ld r12,PACALPPACAPTR(r13) - ld r12,LPPACASRR1(r12) - b .slb_miss_realmode - -#ifdef __DISABLED__ -slb_miss_user_iseries: - std r10,PACA_EXGEN+EX_R10(r13) - std r11,PACA_EXGEN+EX_R11(r13) - std r12,PACA_EXGEN+EX_R12(r13) - mfspr r10,SPRG_SCRATCH0 - ld r11,PACA_EXSLB+EX_R9(r13) - ld r12,PACA_EXSLB+EX_R3(r13) - std r10,PACA_EXGEN+EX_R13(r13) - std r11,PACA_EXGEN+EX_R9(r13) - std r12,PACA_EXGEN+EX_R3(r13) - EXCEPTION_PROLOG_ISERIES_1 - b slb_miss_user_common -#endif - - MASKABLE_EXCEPTION_ISERIES(hardware_interrupt) - STD_EXCEPTION_ISERIES(alignment, PACA_EXGEN) - STD_EXCEPTION_ISERIES(program_check, PACA_EXGEN) - STD_EXCEPTION_ISERIES(fp_unavailable, PACA_EXGEN) - MASKABLE_EXCEPTION_ISERIES(decrementer) - STD_EXCEPTION_ISERIES(trap_0a, PACA_EXGEN) - STD_EXCEPTION_ISERIES(trap_0b, PACA_EXGEN) - - .globl system_call_iSeries -system_call_iSeries: - mr r9,r13 - mfspr r13,SPRN_SPRG_PACA - EXCEPTION_PROLOG_ISERIES_1 - b system_call_common - - STD_EXCEPTION_ISERIES(single_step, PACA_EXGEN) - STD_EXCEPTION_ISERIES(trap_0e, PACA_EXGEN) - STD_EXCEPTION_ISERIES(performance_monitor, PACA_EXGEN) - -decrementer_iSeries_masked: - /* We may not have a valid TOC pointer in here. */ - li r11,1 - ld r12,PACALPPACAPTR(r13) - stb r11,LPPACADECRINT(r12) - li r12,-1 - clrldi r12,r12,33 /* set DEC to 0x7fffffff */ - mtspr SPRN_DEC,r12 - /* fall through */ - -hardware_interrupt_iSeries_masked: - mtcrf 0x80,r9 /* Restore regs */ - ld r12,PACALPPACAPTR(r13) - ld r11,LPPACASRR0(r12) - ld r12,LPPACASRR1(r12) - mtspr SPRN_SRR0,r11 - mtspr SPRN_SRR1,r12 - ld r9,PACA_EXGEN+EX_R9(r13) - ld r10,PACA_EXGEN+EX_R10(r13) - ld r11,PACA_EXGEN+EX_R11(r13) - ld r12,PACA_EXGEN+EX_R12(r13) - ld r13,PACA_EXGEN+EX_R13(r13) - rfid - b . /* prevent speculative execution */ - -_INIT_STATIC(__start_initialization_iSeries) - /* Clear out the BSS */ - LOAD_REG_ADDR(r11,__bss_stop) - LOAD_REG_ADDR(r8,__bss_start) - sub r11,r11,r8 /* bss size */ - addi r11,r11,7 /* round up to an even double word */ - rldicl. r11,r11,61,3 /* shift right by 3 */ - beq 4f - addi r8,r8,-8 - li r0,0 - mtctr r11 /* zero this many doublewords */ -3: stdu r0,8(r8) - bdnz 3b -4: - LOAD_REG_ADDR(r1,init_thread_union) - addi r1,r1,THREAD_SIZE - li r0,0 - stdu r0,-STACK_FRAME_OVERHEAD(r1) - - bl .iSeries_early_setup - bl .early_setup - - /* relocation is on at this point */ - - b .start_here_common diff --git a/arch/powerpc/platforms/iseries/exception.h b/arch/powerpc/platforms/iseries/exception.h deleted file mode 100644 index 50271b5..0000000 --- a/arch/powerpc/platforms/iseries/exception.h +++ /dev/null @@ -1,58 +0,0 @@ -#ifndef _ASM_POWERPC_ISERIES_EXCEPTION_H -#define _ASM_POWERPC_ISERIES_EXCEPTION_H -/* - * Extracted from head_64.S - * - * PowerPC version - * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) - * - * Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP - * Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu> - * Adapted for Power Macintosh by Paul Mackerras. - * Low-level exception handlers and MMU support - * rewritten by Paul Mackerras. - * Copyright (C) 1996 Paul Mackerras. - * - * Adapted for 64bit PowerPC by Dave Engebretsen, Peter Bergner, and - * Mike Corrigan {engebret|bergner|mikejc}@us.ibm.com - * - * This file contains the low-level support and setup for the - * PowerPC-64 platform, including trap and interrupt dispatch. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <asm/exception-64s.h> - -#define EXCEPTION_PROLOG_ISERIES_1 \ - mfmsr r10; \ - ld r12,PACALPPACAPTR(r13); \ - ld r11,LPPACASRR0(r12); \ - ld r12,LPPACASRR1(r12); \ - ori r10,r10,MSR_RI; \ - mtmsrd r10,1 - -#define STD_EXCEPTION_ISERIES(label, area) \ - .globl label##_iSeries; \ -label##_iSeries: \ - HMT_MEDIUM; \ - mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \ - EXCEPTION_PROLOG_1(area, NOTEST, 0); \ - EXCEPTION_PROLOG_ISERIES_1; \ - b label##_common - -#define MASKABLE_EXCEPTION_ISERIES(label) \ - .globl label##_iSeries; \ -label##_iSeries: \ - HMT_MEDIUM; \ - mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \ - EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, 0); \ - lbz r10,PACASOFTIRQEN(r13); \ - cmpwi 0,r10,0; \ - beq- label##_iSeries_masked; \ - EXCEPTION_PROLOG_ISERIES_1; \ - b label##_common; \ - -#endif /* _ASM_POWERPC_ISERIES_EXCEPTION_H */ diff --git a/arch/powerpc/platforms/iseries/htab.c b/arch/powerpc/platforms/iseries/htab.c deleted file mode 100644 index 3ae66ab..0000000 --- a/arch/powerpc/platforms/iseries/htab.c +++ /dev/null @@ -1,257 +0,0 @@ -/* - * iSeries hashtable management. - * Derived from pSeries_htab.c - * - * SMP scalability work: - * Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <asm/machdep.h> -#include <asm/pgtable.h> -#include <asm/mmu.h> -#include <asm/mmu_context.h> -#include <asm/abs_addr.h> -#include <linux/spinlock.h> - -#include "call_hpt.h" - -static spinlock_t iSeries_hlocks[64] __cacheline_aligned_in_smp; - -/* - * Very primitive algorithm for picking up a lock - */ -static inline void iSeries_hlock(unsigned long slot) -{ - if (slot & 0x8) - slot = ~slot; - spin_lock(&iSeries_hlocks[(slot >> 4) & 0x3f]); -} - -static inline void iSeries_hunlock(unsigned long slot) -{ - if (slot & 0x8) - slot = ~slot; - spin_unlock(&iSeries_hlocks[(slot >> 4) & 0x3f]); -} - -static long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va, - unsigned long pa, unsigned long rflags, - unsigned long vflags, int psize, int ssize) -{ - long slot; - struct hash_pte lhpte; - int secondary = 0; - - BUG_ON(psize != MMU_PAGE_4K); - - /* - * The hypervisor tries both primary and secondary. - * If we are being called to insert in the secondary, - * it means we have already tried both primary and secondary, - * so we return failure immediately. - */ - if (vflags & HPTE_V_SECONDARY) - return -1; - - iSeries_hlock(hpte_group); - - slot = HvCallHpt_findValid(&lhpte, va >> HW_PAGE_SHIFT); - if (unlikely(lhpte.v & HPTE_V_VALID)) { - if (vflags & HPTE_V_BOLTED) { - HvCallHpt_setSwBits(slot, 0x10, 0); - HvCallHpt_setPp(slot, PP_RWXX); - iSeries_hunlock(hpte_group); - if (slot < 0) - return 0x8 | (slot & 7); - else - return slot & 7; - } - BUG(); - } - - if (slot == -1) { /* No available entry found in either group */ - iSeries_hunlock(hpte_group); - return -1; - } - - if (slot < 0) { /* MSB set means secondary group */ - vflags |= HPTE_V_SECONDARY; - secondary = 1; - slot &= 0x7fffffffffffffff; - } - - - lhpte.v = hpte_encode_v(va, MMU_PAGE_4K, MMU_SEGSIZE_256M) | - vflags | HPTE_V_VALID; - lhpte.r = hpte_encode_r(phys_to_abs(pa), MMU_PAGE_4K) | rflags; - - /* Now fill in the actual HPTE */ - HvCallHpt_addValidate(slot, secondary, &lhpte); - - iSeries_hunlock(hpte_group); - - return (secondary << 3) | (slot & 7); -} - -static unsigned long iSeries_hpte_getword0(unsigned long slot) -{ - struct hash_pte hpte; - - HvCallHpt_get(&hpte, slot); - return hpte.v; -} - -static long iSeries_hpte_remove(unsigned long hpte_group) -{ - unsigned long slot_offset; - int i; - unsigned long hpte_v; - - /* Pick a random slot to start at */ - slot_offset = mftb() & 0x7; - - iSeries_hlock(hpte_group); - - for (i = 0; i < HPTES_PER_GROUP; i++) { - hpte_v = iSeries_hpte_getword0(hpte_group + slot_offset); - - if (! (hpte_v & HPTE_V_BOLTED)) { - HvCallHpt_invalidateSetSwBitsGet(hpte_group + - slot_offset, 0, 0); - iSeries_hunlock(hpte_group); - return i; - } - - slot_offset++; - slot_offset &= 0x7; - } - - iSeries_hunlock(hpte_group); - - return -1; -} - -/* - * The HyperVisor expects the "flags" argument in this form: - * bits 0..59 : reserved - * bit 60 : N - * bits 61..63 : PP2,PP1,PP0 - */ -static long iSeries_hpte_updatepp(unsigned long slot, unsigned long newpp, - unsigned long va, int psize, int ssize, int local) -{ - struct hash_pte hpte; - unsigned long want_v; - - iSeries_hlock(slot); - - HvCallHpt_get(&hpte, slot); - want_v = hpte_encode_v(va, MMU_PAGE_4K, MMU_SEGSIZE_256M); - - if (HPTE_V_COMPARE(hpte.v, want_v) && (hpte.v & HPTE_V_VALID)) { - /* - * Hypervisor expects bits as NPPP, which is - * different from how they are mapped in our PP. - */ - HvCallHpt_setPp(slot, (newpp & 0x3) | ((newpp & 0x4) << 1)); - iSeries_hunlock(slot); - return 0; - } - iSeries_hunlock(slot); - - return -1; -} - -/* - * Functions used to find the PTE for a particular virtual address. - * Only used during boot when bolting pages. - * - * Input : vpn : virtual page number - * Output: PTE index within the page table of the entry - * -1 on failure - */ -static long iSeries_hpte_find(unsigned long vpn) -{ - struct hash_pte hpte; - long slot; - - /* - * The HvCallHpt_findValid interface is as follows: - * 0xffffffffffffffff : No entry found. - * 0x00000000xxxxxxxx : Entry found in primary group, slot x - * 0x80000000xxxxxxxx : Entry found in secondary group, slot x - */ - slot = HvCallHpt_findValid(&hpte, vpn); - if (hpte.v & HPTE_V_VALID) { - if (slot < 0) { - slot &= 0x7fffffffffffffff; - slot = -slot; - } - } else - slot = -1; - return slot; -} - -/* - * Update the page protection bits. Intended to be used to create - * guard pages for kernel data structures on pages which are bolted - * in the HPT. Assumes pages being operated on will not be stolen. - * Does not work on large pages. - * - * No need to lock here because we should be the only user. - */ -static void iSeries_hpte_updateboltedpp(unsigned long newpp, unsigned long ea, - int psize, int ssize) -{ - unsigned long vsid,va,vpn; - long slot; - - BUG_ON(psize != MMU_PAGE_4K); - - vsid = get_kernel_vsid(ea, MMU_SEGSIZE_256M); - va = (vsid << 28) | (ea & 0x0fffffff); - vpn = va >> HW_PAGE_SHIFT; - slot = iSeries_hpte_find(vpn); - if (slot == -1) - panic("updateboltedpp: Could not find page to bolt\n"); - HvCallHpt_setPp(slot, newpp); -} - -static void iSeries_hpte_invalidate(unsigned long slot, unsigned long va, - int psize, int ssize, int local) -{ - unsigned long hpte_v; - unsigned long avpn = va >> 23; - unsigned long flags; - - local_irq_save(flags); - - iSeries_hlock(slot); - - hpte_v = iSeries_hpte_getword0(slot); - - if ((HPTE_V_AVPN_VAL(hpte_v) == avpn) && (hpte_v & HPTE_V_VALID)) - HvCallHpt_invalidateSetSwBitsGet(slot, 0, 0); - - iSeries_hunlock(slot); - - local_irq_restore(flags); -} - -void __init hpte_init_iSeries(void) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(iSeries_hlocks); i++) - spin_lock_init(&iSeries_hlocks[i]); - - ppc_md.hpte_invalidate = iSeries_hpte_invalidate; - ppc_md.hpte_updatepp = iSeries_hpte_updatepp; - ppc_md.hpte_updateboltedpp = iSeries_hpte_updateboltedpp; - ppc_md.hpte_insert = iSeries_hpte_insert; - ppc_md.hpte_remove = iSeries_hpte_remove; -} diff --git a/arch/powerpc/platforms/iseries/hvcall.S b/arch/powerpc/platforms/iseries/hvcall.S deleted file mode 100644 index 07ae6ad..0000000 --- a/arch/powerpc/platforms/iseries/hvcall.S +++ /dev/null @@ -1,94 +0,0 @@ -/* - * This file contains the code to perform calls to the - * iSeries LPAR hypervisor - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <asm/ppc_asm.h> -#include <asm/processor.h> -#include <asm/ptrace.h> /* XXX for STACK_FRAME_OVERHEAD */ - - .text - -/* - * Hypervisor call - * - * Invoke the iSeries hypervisor via the System Call instruction - * Parameters are passed to this routine in registers r3 - r10 - * - * r3 contains the HV function to be called - * r4-r10 contain the operands to the hypervisor function - * - */ - -_GLOBAL(HvCall) -_GLOBAL(HvCall0) -_GLOBAL(HvCall1) -_GLOBAL(HvCall2) -_GLOBAL(HvCall3) -_GLOBAL(HvCall4) -_GLOBAL(HvCall5) -_GLOBAL(HvCall6) -_GLOBAL(HvCall7) - - - mfcr r0 - std r0,-8(r1) - stdu r1,-(STACK_FRAME_OVERHEAD+16)(r1) - - /* r0 = 0xffffffffffffffff indicates a hypervisor call */ - - li r0,-1 - - /* Invoke the hypervisor */ - - sc - - ld r1,0(r1) - ld r0,-8(r1) - mtcrf 0xff,r0 - - /* return to caller, return value in r3 */ - - blr - -_GLOBAL(HvCall0Ret16) -_GLOBAL(HvCall1Ret16) -_GLOBAL(HvCall2Ret16) -_GLOBAL(HvCall3Ret16) -_GLOBAL(HvCall4Ret16) -_GLOBAL(HvCall5Ret16) -_GLOBAL(HvCall6Ret16) -_GLOBAL(HvCall7Ret16) - - mfcr r0 - std r0,-8(r1) - std r31,-16(r1) - stdu r1,-(STACK_FRAME_OVERHEAD+32)(r1) - - mr r31,r4 - li r0,-1 - mr r4,r5 - mr r5,r6 - mr r6,r7 - mr r7,r8 - mr r8,r9 - mr r9,r10 - - sc - - std r3,0(r31) - std r4,8(r31) - - mr r3,r5 - - ld r1,0(r1) - ld r0,-8(r1) - mtcrf 0xff,r0 - ld r31,-16(r1) - - blr diff --git a/arch/powerpc/platforms/iseries/hvlog.c b/arch/powerpc/platforms/iseries/hvlog.c deleted file mode 100644 index f476d71..0000000 --- a/arch/powerpc/platforms/iseries/hvlog.c +++ /dev/null @@ -1,35 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <asm/page.h> -#include <asm/abs_addr.h> -#include <asm/iseries/hv_call.h> -#include <asm/iseries/hv_call_sc.h> -#include <asm/iseries/hv_types.h> - - -void HvCall_writeLogBuffer(const void *buffer, u64 len) -{ - struct HvLpBufferList hv_buf; - u64 left_this_page; - u64 cur = virt_to_abs(buffer); - - while (len) { - hv_buf.addr = cur; - left_this_page = ((cur & HW_PAGE_MASK) + HW_PAGE_SIZE) - cur; - if (left_this_page > len) - left_this_page = len; - hv_buf.len = left_this_page; - len -= left_this_page; - HvCall2(HvCallBaseWriteLogBuffer, - virt_to_abs(&hv_buf), - left_this_page); - cur = (cur & HW_PAGE_MASK) + HW_PAGE_SIZE; - } -} diff --git a/arch/powerpc/platforms/iseries/hvlpconfig.c b/arch/powerpc/platforms/iseries/hvlpconfig.c deleted file mode 100644 index f62a0c5..0000000 --- a/arch/powerpc/platforms/iseries/hvlpconfig.c +++ /dev/null @@ -1,39 +0,0 @@ -/* - * Copyright (C) 2001 Kyle A. Lucke, IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/export.h> -#include <asm/iseries/hv_lp_config.h> -#include "it_lp_naca.h" - -HvLpIndex HvLpConfig_getLpIndex_outline(void) -{ - return HvLpConfig_getLpIndex(); -} -EXPORT_SYMBOL(HvLpConfig_getLpIndex_outline); - -HvLpIndex HvLpConfig_getLpIndex(void) -{ - return itLpNaca.xLpIndex; -} -EXPORT_SYMBOL(HvLpConfig_getLpIndex); - -HvLpIndex HvLpConfig_getPrimaryLpIndex(void) -{ - return itLpNaca.xPrimaryLpIndex; -} -EXPORT_SYMBOL_GPL(HvLpConfig_getPrimaryLpIndex); diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c deleted file mode 100644 index 2f3d911..0000000 --- a/arch/powerpc/platforms/iseries/iommu.c +++ /dev/null @@ -1,260 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation - * - * Rewrite, cleanup: - * - * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation - * Copyright (C) 2006 Olof Johansson <olof@lixom.net> - * - * Dynamic DMA mapping support, iSeries-specific parts. - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/types.h> -#include <linux/dma-mapping.h> -#include <linux/list.h> -#include <linux/pci.h> -#include <linux/export.h> -#include <linux/slab.h> - -#include <asm/iommu.h> -#include <asm/vio.h> -#include <asm/tce.h> -#include <asm/machdep.h> -#include <asm/abs_addr.h> -#include <asm/prom.h> -#include <asm/pci-bridge.h> -#include <asm/iseries/hv_call_xm.h> -#include <asm/iseries/hv_call_event.h> -#include <asm/iseries/iommu.h> - -static int tce_build_iSeries(struct iommu_table *tbl, long index, long npages, - unsigned long uaddr, enum dma_data_direction direction, - struct dma_attrs *attrs) -{ - u64 rc; - u64 tce, rpn; - - while (npages--) { - rpn = virt_to_abs(uaddr) >> TCE_SHIFT; - tce = (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT; - - if (tbl->it_type == TCE_VB) { - /* Virtual Bus */ - tce |= TCE_VALID|TCE_ALLIO; - if (direction != DMA_TO_DEVICE) - tce |= TCE_VB_WRITE; - } else { - /* PCI Bus */ - tce |= TCE_PCI_READ; /* Read allowed */ - if (direction != DMA_TO_DEVICE) - tce |= TCE_PCI_WRITE; - } - - rc = HvCallXm_setTce((u64)tbl->it_index, (u64)index, tce); - if (rc) - panic("PCI_DMA: HvCallXm_setTce failed, Rc: 0x%llx\n", - rc); - index++; - uaddr += TCE_PAGE_SIZE; - } - return 0; -} - -static void tce_free_iSeries(struct iommu_table *tbl, long index, long npages) -{ - u64 rc; - - while (npages--) { - rc = HvCallXm_setTce((u64)tbl->it_index, (u64)index, 0); - if (rc) - panic("PCI_DMA: HvCallXm_setTce failed, Rc: 0x%llx\n", - rc); - index++; - } -} - -/* - * Structure passed to HvCallXm_getTceTableParms - */ -struct iommu_table_cb { - unsigned long itc_busno; /* Bus number for this tce table */ - unsigned long itc_start; /* Will be NULL for secondary */ - unsigned long itc_totalsize; /* Size (in pages) of whole table */ - unsigned long itc_offset; /* Index into real tce table of the - start of our section */ - unsigned long itc_size; /* Size (in pages) of our section */ - unsigned long itc_index; /* Index of this tce table */ - unsigned short itc_maxtables; /* Max num of tables for partition */ - unsigned char itc_virtbus; /* Flag to indicate virtual bus */ - unsigned char itc_slotno; /* IOA Tce Slot Index */ - unsigned char itc_rsvd[4]; -}; - -/* - * Call Hv with the architected data structure to get TCE table info. - * info. Put the returned data into the Linux representation of the - * TCE table data. - * The Hardware Tce table comes in three flavors. - * 1. TCE table shared between Buses. - * 2. TCE table per Bus. - * 3. TCE Table per IOA. - */ -void iommu_table_getparms_iSeries(unsigned long busno, - unsigned char slotno, - unsigned char virtbus, - struct iommu_table* tbl) -{ - struct iommu_table_cb *parms; - - parms = kzalloc(sizeof(*parms), GFP_KERNEL); - if (parms == NULL) - panic("PCI_DMA: TCE Table Allocation failed."); - - parms->itc_busno = busno; - parms->itc_slotno = slotno; - parms->itc_virtbus = virtbus; - - HvCallXm_getTceTableParms(iseries_hv_addr(parms)); - - if (parms->itc_size == 0) - panic("PCI_DMA: parms->size is zero, parms is 0x%p", parms); - - /* itc_size is in pages worth of table, it_size is in # of entries */ - tbl->it_size = (parms->itc_size * TCE_PAGE_SIZE) / TCE_ENTRY_SIZE; - tbl->it_busno = parms->itc_busno; - tbl->it_offset = parms->itc_offset; - tbl->it_index = parms->itc_index; - tbl->it_blocksize = 1; - tbl->it_type = virtbus ? TCE_VB : TCE_PCI; - - kfree(parms); -} - - -#ifdef CONFIG_PCI -/* - * This function compares the known tables to find an iommu_table - * that has already been built for hardware TCEs. - */ -static struct iommu_table *iommu_table_find(struct iommu_table * tbl) -{ - struct device_node *node; - - for (node = NULL; (node = of_find_all_nodes(node)); ) { - struct pci_dn *pdn = PCI_DN(node); - struct iommu_table *it; - - if (pdn == NULL) - continue; - it = pdn->iommu_table; - if ((it != NULL) && - (it->it_type == TCE_PCI) && - (it->it_offset == tbl->it_offset) && - (it->it_index == tbl->it_index) && - (it->it_size == tbl->it_size)) { - of_node_put(node); - return it; - } - } - return NULL; -} - - -static void pci_dma_dev_setup_iseries(struct pci_dev *pdev) -{ - struct iommu_table *tbl; - struct device_node *dn = pci_device_to_OF_node(pdev); - struct pci_dn *pdn = PCI_DN(dn); - const u32 *lsn = of_get_property(dn, "linux,logical-slot-number", NULL); - - BUG_ON(lsn == NULL); - - tbl = kzalloc(sizeof(struct iommu_table), GFP_KERNEL); - - iommu_table_getparms_iSeries(pdn->busno, *lsn, 0, tbl); - - /* Look for existing tce table */ - pdn->iommu_table = iommu_table_find(tbl); - if (pdn->iommu_table == NULL) - pdn->iommu_table = iommu_init_table(tbl, -1); - else - kfree(tbl); - set_iommu_table_base(&pdev->dev, pdn->iommu_table); -} -#else -#define pci_dma_dev_setup_iseries NULL -#endif - -static struct iommu_table veth_iommu_table; -static struct iommu_table vio_iommu_table; - -void *iseries_hv_alloc(size_t size, dma_addr_t *dma_handle, gfp_t flag) -{ - return iommu_alloc_coherent(NULL, &vio_iommu_table, size, dma_handle, - DMA_BIT_MASK(32), flag, -1); -} -EXPORT_SYMBOL_GPL(iseries_hv_alloc); - -void iseries_hv_free(size_t size, void *vaddr, dma_addr_t dma_handle) -{ - iommu_free_coherent(&vio_iommu_table, size, vaddr, dma_handle); -} -EXPORT_SYMBOL_GPL(iseries_hv_free); - -dma_addr_t iseries_hv_map(void *vaddr, size_t size, - enum dma_data_direction direction) -{ - return iommu_map_page(NULL, &vio_iommu_table, virt_to_page(vaddr), - (unsigned long)vaddr % PAGE_SIZE, size, - DMA_BIT_MASK(32), direction, NULL); -} - -void iseries_hv_unmap(dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -{ - iommu_unmap_page(&vio_iommu_table, dma_handle, size, direction, NULL); -} - -void __init iommu_vio_init(void) -{ - iommu_table_getparms_iSeries(255, 0, 0xff, &veth_iommu_table); - veth_iommu_table.it_size /= 2; - vio_iommu_table = veth_iommu_table; - vio_iommu_table.it_offset += veth_iommu_table.it_size; - - if (!iommu_init_table(&veth_iommu_table, -1)) - printk("Virtual Bus VETH TCE table failed.\n"); - if (!iommu_init_table(&vio_iommu_table, -1)) - printk("Virtual Bus VIO TCE table failed.\n"); -} - -struct iommu_table *vio_build_iommu_table_iseries(struct vio_dev *dev) -{ - if (strcmp(dev->type, "network") == 0) - return &veth_iommu_table; - return &vio_iommu_table; -} - -void iommu_init_early_iSeries(void) -{ - ppc_md.tce_build = tce_build_iSeries; - ppc_md.tce_free = tce_free_iSeries; - - ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_iseries; - set_pci_dma_ops(&dma_iommu_ops); -} diff --git a/arch/powerpc/platforms/iseries/ipl_parms.h b/arch/powerpc/platforms/iseries/ipl_parms.h deleted file mode 100644 index 83e4ca4..0000000 --- a/arch/powerpc/platforms/iseries/ipl_parms.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _ISERIES_IPL_PARMS_H -#define _ISERIES_IPL_PARMS_H - -/* - * This struct maps the IPL Parameters DMA'd from the SP. - * - * Warning: - * This data must map in exactly 64 bytes and match the architecture for - * the IPL parms - */ - -#include <asm/types.h> - -struct ItIplParmsReal { - u8 xFormat; // Defines format of IplParms x00-x00 - u8 xRsvd01:6; // Reserved x01-x01 - u8 xAlternateSearch:1; // Alternate search indicator ... - u8 xUaSupplied:1; // UA Supplied on programmed IPL... - u8 xLsUaFormat; // Format byte for UA x02-x02 - u8 xRsvd02; // Reserved x03-x03 - u32 xLsUa; // LS UA x04-x07 - u32 xUnusedLsLid; // First OS LID to load x08-x0B - u16 xLsBusNumber; // LS Bus Number x0C-x0D - u8 xLsCardAdr; // LS Card Address x0E-x0E - u8 xLsBoardAdr; // LS Board Address x0F-x0F - u32 xRsvd03; // Reserved x10-x13 - u8 xSpcnPresent:1; // SPCN present x14-x14 - u8 xCpmPresent:1; // CPM present ... - u8 xRsvd04:6; // Reserved ... - u8 xRsvd05:4; // Reserved x15-x15 - u8 xKeyLock:4; // Keylock setting ... - u8 xRsvd06:6; // Reserved x16-x16 - u8 xIplMode:2; // Ipl mode (A|B|C|D) ... - u8 xHwIplType; // Fast v slow v slow EC HW IPL x17-x17 - u16 xCpmEnabledIpl:1; // CPM in effect when IPL initiatedx18-x19 - u16 xPowerOnResetIpl:1; // Indicate POR condition ... - u16 xMainStorePreserved:1; // Main Storage is preserved ... - u16 xRsvd07:13; // Reserved ... - u16 xIplSource:16; // Ipl source x1A-x1B - u8 xIplReason:8; // Reason for this IPL x1C-x1C - u8 xRsvd08; // Reserved x1D-x1D - u16 xRsvd09; // Reserved x1E-x1F - u16 xSysBoxType; // System Box Type x20-x21 - u16 xSysProcType; // System Processor Type x22-x23 - u32 xRsvd10; // Reserved x24-x27 - u64 xRsvd11; // Reserved x28-x2F - u64 xRsvd12; // Reserved x30-x37 - u64 xRsvd13; // Reserved x38-x3F -}; - -#endif /* _ISERIES_IPL_PARMS_H */ diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c deleted file mode 100644 index 05ce516..0000000 --- a/arch/powerpc/platforms/iseries/irq.c +++ /dev/null @@ -1,399 +0,0 @@ -/* - * This module supports the iSeries PCI bus interrupt handling - * Copyright (C) 20yy <Robert L Holtorf> <IBM Corp> - * Copyright (C) 2004-2005 IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the: - * Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, - * Boston, MA 02111-1307 USA - * - * Change Activity: - * Created, December 13, 2000 by Wayne Holm - * End Change Activity - */ -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/threads.h> -#include <linux/smp.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/bootmem.h> -#include <linux/irq.h> -#include <linux/spinlock.h> - -#include <asm/paca.h> -#include <asm/iseries/hv_types.h> -#include <asm/iseries/hv_lp_event.h> -#include <asm/iseries/hv_call_xm.h> -#include <asm/iseries/it_lp_queue.h> - -#include "irq.h" -#include "pci.h" -#include "call_pci.h" - -#ifdef CONFIG_PCI - -enum pci_event_type { - pe_bus_created = 0, /* PHB has been created */ - pe_bus_error = 1, /* PHB has failed */ - pe_bus_failed = 2, /* Msg to Secondary, Primary failed bus */ - pe_node_failed = 4, /* Multi-adapter bridge has failed */ - pe_node_recovered = 5, /* Multi-adapter bridge has recovered */ - pe_bus_recovered = 12, /* PHB has been recovered */ - pe_unquiese_bus = 18, /* Secondary bus unqiescing */ - pe_bridge_error = 21, /* Bridge Error */ - pe_slot_interrupt = 22 /* Slot interrupt */ -}; - -struct pci_event { - struct HvLpEvent event; - union { - u64 __align; /* Align on an 8-byte boundary */ - struct { - u32 fisr; - HvBusNumber bus_number; - HvSubBusNumber sub_bus_number; - HvAgentId dev_id; - } slot; - struct { - HvBusNumber bus_number; - HvSubBusNumber sub_bus_number; - } bus; - struct { - HvBusNumber bus_number; - HvSubBusNumber sub_bus_number; - HvAgentId dev_id; - } node; - } data; -}; - -static DEFINE_SPINLOCK(pending_irqs_lock); -static int num_pending_irqs; -static int pending_irqs[NR_IRQS]; - -static void int_received(struct pci_event *event) -{ - int irq; - - switch (event->event.xSubtype) { - case pe_slot_interrupt: - irq = event->event.xCorrelationToken; - if (irq < NR_IRQS) { - spin_lock(&pending_irqs_lock); - pending_irqs[irq]++; - num_pending_irqs++; - spin_unlock(&pending_irqs_lock); - } else { - printk(KERN_WARNING "int_received: bad irq number %d\n", - irq); - HvCallPci_eoi(event->data.slot.bus_number, - event->data.slot.sub_bus_number, - event->data.slot.dev_id); - } - break; - /* Ignore error recovery events for now */ - case pe_bus_created: - printk(KERN_INFO "int_received: system bus %d created\n", - event->data.bus.bus_number); - break; - case pe_bus_error: - case pe_bus_failed: - printk(KERN_INFO "int_received: system bus %d failed\n", - event->data.bus.bus_number); - break; - case pe_bus_recovered: - case pe_unquiese_bus: - printk(KERN_INFO "int_received: system bus %d recovered\n", - event->data.bus.bus_number); - break; - case pe_node_failed: - case pe_bridge_error: - printk(KERN_INFO - "int_received: multi-adapter bridge %d/%d/%d failed\n", - event->data.node.bus_number, - event->data.node.sub_bus_number, - event->data.node.dev_id); - break; - case pe_node_recovered: - printk(KERN_INFO - "int_received: multi-adapter bridge %d/%d/%d recovered\n", - event->data.node.bus_number, - event->data.node.sub_bus_number, - event->data.node.dev_id); - break; - default: - printk(KERN_ERR - "int_received: unrecognized event subtype 0x%x\n", - event->event.xSubtype); - break; - } -} - -static void pci_event_handler(struct HvLpEvent *event) -{ - if (event && (event->xType == HvLpEvent_Type_PciIo)) { - if (hvlpevent_is_int(event)) - int_received((struct pci_event *)event); - else - printk(KERN_ERR - "pci_event_handler: unexpected ack received\n"); - } else if (event) - printk(KERN_ERR - "pci_event_handler: Unrecognized PCI event type 0x%x\n", - (int)event->xType); - else - printk(KERN_ERR "pci_event_handler: NULL event received\n"); -} - -#define REAL_IRQ_TO_SUBBUS(irq) (((irq) >> 14) & 0xff) -#define REAL_IRQ_TO_BUS(irq) ((((irq) >> 6) & 0xff) + 1) -#define REAL_IRQ_TO_IDSEL(irq) ((((irq) >> 3) & 7) + 1) -#define REAL_IRQ_TO_FUNC(irq) ((irq) & 7) - -/* - * This will be called by device drivers (via enable_IRQ) - * to enable INTA in the bridge interrupt status register. - */ -static void iseries_enable_IRQ(struct irq_data *d) -{ - u32 bus, dev_id, function, mask; - const u32 sub_bus = 0; - unsigned int rirq = (unsigned int)irqd_to_hwirq(d); - - /* The IRQ has already been locked by the caller */ - bus = REAL_IRQ_TO_BUS(rirq); - function = REAL_IRQ_TO_FUNC(rirq); - dev_id = (REAL_IRQ_TO_IDSEL(rirq) << 4) + function; - - /* Unmask secondary INTA */ - mask = 0x80000000; - HvCallPci_unmaskInterrupts(bus, sub_bus, dev_id, mask); -} - -/* This is called by iseries_activate_IRQs */ -static unsigned int iseries_startup_IRQ(struct irq_data *d) -{ - u32 bus, dev_id, function, mask; - const u32 sub_bus = 0; - unsigned int rirq = (unsigned int)irqd_to_hwirq(d); - - bus = REAL_IRQ_TO_BUS(rirq); - function = REAL_IRQ_TO_FUNC(rirq); - dev_id = (REAL_IRQ_TO_IDSEL(rirq) << 4) + function; - - /* Link the IRQ number to the bridge */ - HvCallXm_connectBusUnit(bus, sub_bus, dev_id, d->irq); - - /* Unmask bridge interrupts in the FISR */ - mask = 0x01010000 << function; - HvCallPci_unmaskFisr(bus, sub_bus, dev_id, mask); - iseries_enable_IRQ(d); - return 0; -} - -/* - * This is called out of iSeries_fixup to activate interrupt - * generation for usable slots - */ -void __init iSeries_activate_IRQs() -{ - int irq; - unsigned long flags; - - for_each_irq (irq) { - struct irq_desc *desc = irq_to_desc(irq); - struct irq_chip *chip; - - if (!desc) - continue; - - chip = irq_desc_get_chip(desc); - if (chip && chip->irq_startup) { - raw_spin_lock_irqsave(&desc->lock, flags); - chip->irq_startup(&desc->irq_data); - raw_spin_unlock_irqrestore(&desc->lock, flags); - } - } -} - -/* this is not called anywhere currently */ -static void iseries_shutdown_IRQ(struct irq_data *d) -{ - u32 bus, dev_id, function, mask; - const u32 sub_bus = 0; - unsigned int rirq = (unsigned int)irqd_to_hwirq(d); - - /* irq should be locked by the caller */ - bus = REAL_IRQ_TO_BUS(rirq); - function = REAL_IRQ_TO_FUNC(rirq); - dev_id = (REAL_IRQ_TO_IDSEL(rirq) << 4) + function; - - /* Invalidate the IRQ number in the bridge */ - HvCallXm_connectBusUnit(bus, sub_bus, dev_id, 0); - - /* Mask bridge interrupts in the FISR */ - mask = 0x01010000 << function; - HvCallPci_maskFisr(bus, sub_bus, dev_id, mask); -} - -/* - * This will be called by device drivers (via disable_IRQ) - * to disable INTA in the bridge interrupt status register. - */ -static void iseries_disable_IRQ(struct irq_data *d) -{ - u32 bus, dev_id, function, mask; - const u32 sub_bus = 0; - unsigned int rirq = (unsigned int)irqd_to_hwirq(d); - - /* The IRQ has already been locked by the caller */ - bus = REAL_IRQ_TO_BUS(rirq); - function = REAL_IRQ_TO_FUNC(rirq); - dev_id = (REAL_IRQ_TO_IDSEL(rirq) << 4) + function; - - /* Mask secondary INTA */ - mask = 0x80000000; - HvCallPci_maskInterrupts(bus, sub_bus, dev_id, mask); -} - -static void iseries_end_IRQ(struct irq_data *d) -{ - unsigned int rirq = (unsigned int)irqd_to_hwirq(d); - - HvCallPci_eoi(REAL_IRQ_TO_BUS(rirq), REAL_IRQ_TO_SUBBUS(rirq), - (REAL_IRQ_TO_IDSEL(rirq) << 4) + REAL_IRQ_TO_FUNC(rirq)); -} - -static struct irq_chip iseries_pic = { - .name = "iSeries", - .irq_startup = iseries_startup_IRQ, - .irq_shutdown = iseries_shutdown_IRQ, - .irq_unmask = iseries_enable_IRQ, - .irq_mask = iseries_disable_IRQ, - .irq_eoi = iseries_end_IRQ -}; - -/* - * This is called out of iSeries_scan_slot to allocate an IRQ for an EADS slot - * It calculates the irq value for the slot. - * Note that sub_bus is always 0 (at the moment at least). - */ -int __init iSeries_allocate_IRQ(HvBusNumber bus, - HvSubBusNumber sub_bus, u32 bsubbus) -{ - unsigned int realirq; - u8 idsel = ISERIES_GET_DEVICE_FROM_SUBBUS(bsubbus); - u8 function = ISERIES_GET_FUNCTION_FROM_SUBBUS(bsubbus); - - realirq = (((((sub_bus << 8) + (bus - 1)) << 3) + (idsel - 1)) << 3) - + function; - - return irq_create_mapping(NULL, realirq); -} - -#endif /* CONFIG_PCI */ - -/* - * Get the next pending IRQ. - */ -unsigned int iSeries_get_irq(void) -{ - int irq = NO_IRQ_IGNORE; - -#ifdef CONFIG_SMP - if (get_lppaca()->int_dword.fields.ipi_cnt) { - get_lppaca()->int_dword.fields.ipi_cnt = 0; - smp_ipi_demux(); - } -#endif /* CONFIG_SMP */ - if (hvlpevent_is_pending()) - process_hvlpevents(); - -#ifdef CONFIG_PCI - if (num_pending_irqs) { - spin_lock(&pending_irqs_lock); - for (irq = 0; irq < NR_IRQS; irq++) { - if (pending_irqs[irq]) { - pending_irqs[irq]--; - num_pending_irqs--; - break; - } - } - spin_unlock(&pending_irqs_lock); - if (irq >= NR_IRQS) - irq = NO_IRQ_IGNORE; - } -#endif - - return irq; -} - -#ifdef CONFIG_PCI - -static int iseries_irq_host_map(struct irq_domain *h, unsigned int virq, - irq_hw_number_t hw) -{ - irq_set_chip_and_handler(virq, &iseries_pic, handle_fasteoi_irq); - - return 0; -} - -static int iseries_irq_host_match(struct irq_domain *h, struct device_node *np) -{ - /* Match all */ - return 1; -} - -static const struct irq_domain_ops iseries_irq_domain_ops = { - .map = iseries_irq_host_map, - .match = iseries_irq_host_match, -}; - -/* - * This is called by init_IRQ. set in ppc_md.init_IRQ by iSeries_setup.c - * It must be called before the bus walk. - */ -void __init iSeries_init_IRQ(void) -{ - /* Register PCI event handler and open an event path */ - struct irq_domain *host; - int ret; - - /* - * The Hypervisor only allows us up to 256 interrupt - * sources (the irq number is passed in a u8). - */ - irq_set_virq_count(256); - - /* Create irq host. No need for a revmap since HV will give us - * back our virtual irq number - */ - host = irq_domain_add_nomap(NULL, &iseries_irq_domain_ops, NULL); - BUG_ON(host == NULL); - irq_set_default_host(host); - - ret = HvLpEvent_registerHandler(HvLpEvent_Type_PciIo, - &pci_event_handler); - if (ret == 0) { - ret = HvLpEvent_openPath(HvLpEvent_Type_PciIo, 0); - if (ret != 0) - printk(KERN_ERR "iseries_init_IRQ: open event path " - "failed with rc 0x%x\n", ret); - } else - printk(KERN_ERR "iseries_init_IRQ: register handler " - "failed with rc 0x%x\n", ret); -} - -#endif /* CONFIG_PCI */ diff --git a/arch/powerpc/platforms/iseries/irq.h b/arch/powerpc/platforms/iseries/irq.h deleted file mode 100644 index a1c2360..0000000 --- a/arch/powerpc/platforms/iseries/irq.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef _ISERIES_IRQ_H -#define _ISERIES_IRQ_H - -#ifdef CONFIG_PCI -extern void iSeries_init_IRQ(void); -extern int iSeries_allocate_IRQ(HvBusNumber, HvSubBusNumber, u32); -extern void iSeries_activate_IRQs(void); -#else -#define iSeries_init_IRQ NULL -#endif -extern unsigned int iSeries_get_irq(void); - -#endif /* _ISERIES_IRQ_H */ diff --git a/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h b/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h deleted file mode 100644 index 6de9097..0000000 --- a/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (C) 2002 Dave Boutcher IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H -#define _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H - -/* - * This struct maps the panel information - * - * Warning: - * This data must match the architecture for the panel information - */ - -#include <asm/types.h> - -struct ItExtVpdPanel { - /* Definition of the Extended Vpd On Panel Data Area */ - char systemSerial[8]; - char mfgID[4]; - char reserved1[24]; - char machineType[4]; - char systemID[6]; - char somUniqueCnt[4]; - char serialNumberCount; - char reserved2[7]; - u16 bbu3; - u16 bbu2; - u16 bbu1; - char xLocationLabel[8]; - u8 xRsvd1[6]; - u16 xFrameId; - u8 xRsvd2[48]; -}; - -extern struct ItExtVpdPanel xItExtVpdPanel; - -#endif /* _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H */ diff --git a/arch/powerpc/platforms/iseries/it_lp_naca.h b/arch/powerpc/platforms/iseries/it_lp_naca.h deleted file mode 100644 index cf6dcf6..0000000 --- a/arch/powerpc/platforms/iseries/it_lp_naca.h +++ /dev/null @@ -1,80 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _PLATFORMS_ISERIES_IT_LP_NACA_H -#define _PLATFORMS_ISERIES_IT_LP_NACA_H - -#include <linux/types.h> - -/* - * This control block contains the data that is shared between the - * hypervisor (PLIC) and the OS. - */ - -struct ItLpNaca { -// CACHE_LINE_1 0x0000 - 0x007F Contains read-only data - u32 xDesc; // Eye catcher x00-x03 - u16 xSize; // Size of this class x04-x05 - u16 xIntHdlrOffset; // Offset to IntHdlr array x06-x07 - u8 xMaxIntHdlrEntries; // Number of entries in array x08-x08 - u8 xPrimaryLpIndex; // LP Index of Primary x09-x09 - u8 xServiceLpIndex; // LP Ind of Service Focal Pointx0A-x0A - u8 xLpIndex; // LP Index x0B-x0B - u16 xMaxLpQueues; // Number of allocated queues x0C-x0D - u16 xLpQueueOffset; // Offset to start of LP queues x0E-x0F - u8 xPirEnvironMode; // Piranha or hardware x10-x10 - u8 xPirConsoleMode; // Piranha console indicator x11-x11 - u8 xPirDasdMode; // Piranha dasd indicator x12-x12 - u8 xRsvd1_0[5]; // Reserved for Piranha related x13-x17 - u8 flags; // flags, see below x18-x1F - u8 xSpVpdFormat; // VPD areas are in CSP format ... - u8 xIntProcRatio; // Ratio of int procs to procs ... - u8 xRsvd1_2[5]; // Reserved ... - u16 xRsvd1_3; // Reserved x20-x21 - u16 xPlicVrmIndex; // VRM index of PLIC x22-x23 - u16 xMinSupportedSlicVrmInd;// Min supported OS VRM index x24-x25 - u16 xMinCompatableSlicVrmInd;// Min compatible OS VRM index x26-x27 - u64 xLoadAreaAddr; // ER address of load area x28-x2F - u32 xLoadAreaChunks; // Chunks for the load area x30-x33 - u32 xPaseSysCallCRMask; // Mask used to test CR before x34-x37 - // doing an ASR switch on PASE - // system call. - u64 xSlicSegmentTablePtr; // Pointer to Slic seg table. x38-x3f - u8 xRsvd1_4[64]; // x40-x7F - -// CACHE_LINE_2 0x0080 - 0x00FF Contains local read-write data - u8 xRsvd2_0[128]; // Reserved x00-x7F - -// CACHE_LINE_3-6 0x0100 - 0x02FF Contains LP Queue indicators -// NB: Padding required to keep xInterruptHdlr at x300 which is required -// for v4r4 PLIC. - u8 xOldLpQueue[128]; // LP Queue needed for v4r4 100-17F - u8 xRsvd3_0[384]; // Reserved 180-2FF - -// CACHE_LINE_7-8 0x0300 - 0x03FF Contains the address of the OS interrupt -// handlers - u64 xInterruptHdlr[32]; // Interrupt handlers 300-x3FF -}; - -extern struct ItLpNaca itLpNaca; - -#define ITLPNACA_LPAR 0x80 /* Is LPAR installed on the system */ -#define ITLPNACA_PARTITIONED 0x40 /* Is the system partitioned */ -#define ITLPNACA_HWSYNCEDTBS 0x20 /* Hardware synced TBs */ -#define ITLPNACA_HMTINT 0x10 /* Utilize MHT for interrupts */ - -#endif /* _PLATFORMS_ISERIES_IT_LP_NACA_H */ diff --git a/arch/powerpc/platforms/iseries/ksyms.c b/arch/powerpc/platforms/iseries/ksyms.c deleted file mode 100644 index 997e234..0000000 --- a/arch/powerpc/platforms/iseries/ksyms.c +++ /dev/null @@ -1,21 +0,0 @@ -/* - * (C) 2001-2005 PPC 64 Team, IBM Corp - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <linux/export.h> - -#include <asm/hw_irq.h> -#include <asm/iseries/hv_call_sc.h> - -EXPORT_SYMBOL(HvCall0); -EXPORT_SYMBOL(HvCall1); -EXPORT_SYMBOL(HvCall2); -EXPORT_SYMBOL(HvCall3); -EXPORT_SYMBOL(HvCall4); -EXPORT_SYMBOL(HvCall5); -EXPORT_SYMBOL(HvCall6); -EXPORT_SYMBOL(HvCall7); diff --git a/arch/powerpc/platforms/iseries/lpardata.c b/arch/powerpc/platforms/iseries/lpardata.c deleted file mode 100644 index 00e0ec8..0000000 --- a/arch/powerpc/platforms/iseries/lpardata.c +++ /dev/null @@ -1,318 +0,0 @@ -/* - * Copyright 2001 Mike Corrigan, IBM Corp - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <linux/types.h> -#include <linux/threads.h> -#include <linux/bitops.h> -#include <asm/processor.h> -#include <asm/ptrace.h> -#include <asm/abs_addr.h> -#include <asm/lppaca.h> -#include <asm/paca.h> -#include <asm/iseries/lpar_map.h> -#include <asm/iseries/it_lp_queue.h> -#include <asm/iseries/alpaca.h> - -#include "naca.h" -#include "vpd_areas.h" -#include "spcomm_area.h" -#include "ipl_parms.h" -#include "processor_vpd.h" -#include "release_data.h" -#include "it_exp_vpd_panel.h" -#include "it_lp_naca.h" - -/* The HvReleaseData is the root of the information shared between - * the hypervisor and Linux. - */ -const struct HvReleaseData hvReleaseData = { - .xDesc = 0xc8a5d9c4, /* "HvRD" ebcdic */ - .xSize = sizeof(struct HvReleaseData), - .xVpdAreasPtrOffset = offsetof(struct naca_struct, xItVpdAreas), - .xSlicNacaAddr = &naca, /* 64-bit Naca address */ - .xMsNucDataOffset = LPARMAP_PHYS, - .xFlags = HVREL_TAGSINACTIVE /* tags inactive */ - /* 64 bit */ - /* shared processors */ - /* HMT allowed */ - | 6, /* TEMP: This allows non-GA driver */ - .xVrmIndex = 4, /* We are v5r2m0 */ - .xMinSupportedPlicVrmIndex = 3, /* v5r1m0 */ - .xMinCompatablePlicVrmIndex = 3, /* v5r1m0 */ - .xVrmName = { 0xd3, 0x89, 0x95, 0xa4, /* "Linux 2.4.64" ebcdic */ - 0xa7, 0x40, 0xf2, 0x4b, - 0xf4, 0x4b, 0xf6, 0xf4 }, -}; - -/* - * The NACA. The first dword of the naca is required by the iSeries - * hypervisor to point to itVpdAreas. The hypervisor finds the NACA - * through the pointer in hvReleaseData. - */ -struct naca_struct naca = { - .xItVpdAreas = &itVpdAreas, - .xRamDisk = 0, - .xRamDiskSize = 0, -}; - -struct ItLpRegSave { - u32 xDesc; // Eye catcher "LpRS" ebcdic 000-003 - u16 xSize; // Size of this class 004-005 - u8 xInUse; // Area is live 006-007 - u8 xRsvd1[9]; // Reserved 007-00F - - u8 xFixedRegSave[352]; // Fixed Register Save Area 010-16F - u32 xCTRL; // Control Register 170-173 - u32 xDEC; // Decrementer 174-177 - u32 xFPSCR; // FP Status and Control Reg 178-17B - u32 xPVR; // Processor Version Number 17C-17F - - u64 xMMCR0; // Monitor Mode Control Reg 0 180-187 - u32 xPMC1; // Perf Monitor Counter 1 188-18B - u32 xPMC2; // Perf Monitor Counter 2 18C-18F - u32 xPMC3; // Perf Monitor Counter 3 190-193 - u32 xPMC4; // Perf Monitor Counter 4 194-197 - u32 xPIR; // Processor ID Reg 198-19B - - u32 xMMCR1; // Monitor Mode Control Reg 1 19C-19F - u32 xMMCRA; // Monitor Mode Control Reg A 1A0-1A3 - u32 xPMC5; // Perf Monitor Counter 5 1A4-1A7 - u32 xPMC6; // Perf Monitor Counter 6 1A8-1AB - u32 xPMC7; // Perf Monitor Counter 7 1AC-1AF - u32 xPMC8; // Perf Monitor Counter 8 1B0-1B3 - u32 xTSC; // Thread Switch Control 1B4-1B7 - u32 xTST; // Thread Switch Timeout 1B8-1BB - u32 xRsvd; // Reserved 1BC-1BF - - u64 xACCR; // Address Compare Control Reg 1C0-1C7 - u64 xIMR; // Instruction Match Register 1C8-1CF - u64 xSDR1; // Storage Description Reg 1 1D0-1D7 - u64 xSPRG0; // Special Purpose Reg General0 1D8-1DF - u64 xSPRG1; // Special Purpose Reg General1 1E0-1E7 - u64 xSPRG2; // Special Purpose Reg General2 1E8-1EF - u64 xSPRG3; // Special Purpose Reg General3 1F0-1F7 - u64 xTB; // Time Base Register 1F8-1FF - - u64 xFPR[32]; // Floating Point Registers 200-2FF - - u64 xMSR; // Machine State Register 300-307 - u64 xNIA; // Next Instruction Address 308-30F - - u64 xDABR; // Data Address Breakpoint Reg 310-317 - u64 xIABR; // Inst Address Breakpoint Reg 318-31F - - u64 xHID0; // HW Implementation Dependent0 320-327 - - u64 xHID4; // HW Implementation Dependent4 328-32F - u64 xSCOMd; // SCON Data Reg (SPRG4) 330-337 - u64 xSCOMc; // SCON Command Reg (SPRG5) 338-33F - u64 xSDAR; // Sample Data Address Register 340-347 - u64 xSIAR; // Sample Inst Address Register 348-34F - - u8 xRsvd3[176]; // Reserved 350-3FF -}; - -extern void system_reset_iSeries(void); -extern void machine_check_iSeries(void); -extern void data_access_iSeries(void); -extern void instruction_access_iSeries(void); -extern void hardware_interrupt_iSeries(void); -extern void alignment_iSeries(void); -extern void program_check_iSeries(void); -extern void fp_unavailable_iSeries(void); -extern void decrementer_iSeries(void); -extern void trap_0a_iSeries(void); -extern void trap_0b_iSeries(void); -extern void system_call_iSeries(void); -extern void single_step_iSeries(void); -extern void trap_0e_iSeries(void); -extern void performance_monitor_iSeries(void); -extern void data_access_slb_iSeries(void); -extern void instruction_access_slb_iSeries(void); - -struct ItLpNaca itLpNaca = { - .xDesc = 0xd397d581, /* "LpNa" ebcdic */ - .xSize = 0x0400, /* size of ItLpNaca */ - .xIntHdlrOffset = 0x0300, /* offset to int array */ - .xMaxIntHdlrEntries = 19, /* # ents */ - .xPrimaryLpIndex = 0, /* Part # of primary */ - .xServiceLpIndex = 0, /* Part # of serv */ - .xLpIndex = 0, /* Part # of me */ - .xMaxLpQueues = 0, /* # of LP queues */ - .xLpQueueOffset = 0x100, /* offset of start of LP queues */ - .xPirEnvironMode = 0, /* Piranha stuff */ - .xPirConsoleMode = 0, - .xPirDasdMode = 0, - .flags = 0, - .xSpVpdFormat = 0, - .xIntProcRatio = 0, - .xPlicVrmIndex = 0, /* VRM index of PLIC */ - .xMinSupportedSlicVrmInd = 0, /* min supported SLIC */ - .xMinCompatableSlicVrmInd = 0, /* min compat SLIC */ - .xLoadAreaAddr = 0, /* 64-bit addr of load area */ - .xLoadAreaChunks = 0, /* chunks for load area */ - .xPaseSysCallCRMask = 0, /* PASE mask */ - .xSlicSegmentTablePtr = 0, /* seg table */ - .xOldLpQueue = { 0 }, /* Old LP Queue */ - .xInterruptHdlr = { - (u64)system_reset_iSeries, /* 0x100 System Reset */ - (u64)machine_check_iSeries, /* 0x200 Machine Check */ - (u64)data_access_iSeries, /* 0x300 Data Access */ - (u64)instruction_access_iSeries, /* 0x400 Instruction Access */ - (u64)hardware_interrupt_iSeries, /* 0x500 External */ - (u64)alignment_iSeries, /* 0x600 Alignment */ - (u64)program_check_iSeries, /* 0x700 Program Check */ - (u64)fp_unavailable_iSeries, /* 0x800 FP Unavailable */ - (u64)decrementer_iSeries, /* 0x900 Decrementer */ - (u64)trap_0a_iSeries, /* 0xa00 Trap 0A */ - (u64)trap_0b_iSeries, /* 0xb00 Trap 0B */ - (u64)system_call_iSeries, /* 0xc00 System Call */ - (u64)single_step_iSeries, /* 0xd00 Single Step */ - (u64)trap_0e_iSeries, /* 0xe00 Trap 0E */ - (u64)performance_monitor_iSeries,/* 0xf00 Performance Monitor */ - 0, /* int 0x1000 */ - 0, /* int 0x1010 */ - 0, /* int 0x1020 CPU ctls */ - (u64)hardware_interrupt_iSeries, /* SC Ret Hdlr */ - (u64)data_access_slb_iSeries, /* 0x380 D-SLB */ - (u64)instruction_access_slb_iSeries /* 0x480 I-SLB */ - } -}; - -/* May be filled in by the hypervisor so cannot end up in the BSS */ -static struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data"))); - -/* May be filled in by the hypervisor so cannot end up in the BSS */ -struct ItExtVpdPanel xItExtVpdPanel __attribute__((__section__(".data"))); - -#define maxPhysicalProcessors 32 - -struct IoHriProcessorVpd xIoHriProcessorVpd[maxPhysicalProcessors] = { - { - .xInstCacheOperandSize = 32, - .xDataCacheOperandSize = 32, - .xProcFreq = 50000000, - .xTimeBaseFreq = 50000000, - .xPVR = 0x3600 - } -}; - -/* Space for Main Store Vpd 27,200 bytes */ -/* May be filled in by the hypervisor so cannot end up in the BSS */ -u64 xMsVpd[3400] __attribute__((__section__(".data"))); - -/* Space for Recovery Log Buffer */ -/* May be filled in by the hypervisor so cannot end up in the BSS */ -static u64 xRecoveryLogBuffer[32] __attribute__((__section__(".data"))); - -static const struct SpCommArea xSpCommArea = { - .xDesc = 0xE2D7C3C2, - .xFormat = 1, -}; - -static const struct ItLpRegSave iseries_reg_save[] = { - [0 ... (NR_CPUS-1)] = { - .xDesc = 0xd397d9e2, /* "LpRS" */ - .xSize = sizeof(struct ItLpRegSave), - }, -}; - -#define ALPACA_INIT(number) \ -{ \ - .lppaca_ptr = &lppaca[number], \ - .reg_save_ptr = &iseries_reg_save[number], \ -} - -const struct alpaca alpaca[] = { - ALPACA_INIT( 0), -#if NR_CPUS > 1 - ALPACA_INIT( 1), ALPACA_INIT( 2), ALPACA_INIT( 3), -#if NR_CPUS > 4 - ALPACA_INIT( 4), ALPACA_INIT( 5), ALPACA_INIT( 6), ALPACA_INIT( 7), -#if NR_CPUS > 8 - ALPACA_INIT( 8), ALPACA_INIT( 9), ALPACA_INIT(10), ALPACA_INIT(11), - ALPACA_INIT(12), ALPACA_INIT(13), ALPACA_INIT(14), ALPACA_INIT(15), - ALPACA_INIT(16), ALPACA_INIT(17), ALPACA_INIT(18), ALPACA_INIT(19), - ALPACA_INIT(20), ALPACA_INIT(21), ALPACA_INIT(22), ALPACA_INIT(23), - ALPACA_INIT(24), ALPACA_INIT(25), ALPACA_INIT(26), ALPACA_INIT(27), - ALPACA_INIT(28), ALPACA_INIT(29), ALPACA_INIT(30), ALPACA_INIT(31), -#if NR_CPUS > 32 - ALPACA_INIT(32), ALPACA_INIT(33), ALPACA_INIT(34), ALPACA_INIT(35), - ALPACA_INIT(36), ALPACA_INIT(37), ALPACA_INIT(38), ALPACA_INIT(39), - ALPACA_INIT(40), ALPACA_INIT(41), ALPACA_INIT(42), ALPACA_INIT(43), - ALPACA_INIT(44), ALPACA_INIT(45), ALPACA_INIT(46), ALPACA_INIT(47), - ALPACA_INIT(48), ALPACA_INIT(49), ALPACA_INIT(50), ALPACA_INIT(51), - ALPACA_INIT(52), ALPACA_INIT(53), ALPACA_INIT(54), ALPACA_INIT(55), - ALPACA_INIT(56), ALPACA_INIT(57), ALPACA_INIT(58), ALPACA_INIT(59), - ALPACA_INIT(60), ALPACA_INIT(61), ALPACA_INIT(62), ALPACA_INIT(63), -#endif -#endif -#endif -#endif -}; - -/* The LparMap data is now located at offset 0x6000 in head.S - * It was put there so that the HvReleaseData could address it - * with a 32-bit offset as required by the iSeries hypervisor - * - * The Naca has a pointer to the ItVpdAreas. The hypervisor finds - * the Naca via the HvReleaseData area. The HvReleaseData has the - * offset into the Naca of the pointer to the ItVpdAreas. - */ -const struct ItVpdAreas itVpdAreas = { - .xSlicDesc = 0xc9a3e5c1, /* "ItVA" */ - .xSlicSize = sizeof(struct ItVpdAreas), - .xSlicVpdEntries = ItVpdMaxEntries, /* # VPD array entries */ - .xSlicDmaEntries = ItDmaMaxEntries, /* # DMA array entries */ - .xSlicMaxLogicalProcs = NR_CPUS * 2, /* Max logical procs */ - .xSlicMaxPhysicalProcs = maxPhysicalProcessors, /* Max physical procs */ - .xSlicDmaToksOffset = offsetof(struct ItVpdAreas, xPlicDmaToks), - .xSlicVpdAdrsOffset = offsetof(struct ItVpdAreas, xSlicVpdAdrs), - .xSlicDmaLensOffset = offsetof(struct ItVpdAreas, xPlicDmaLens), - .xSlicVpdLensOffset = offsetof(struct ItVpdAreas, xSlicVpdLens), - .xSlicMaxSlotLabels = 0, /* max slot labels */ - .xSlicMaxLpQueues = 1, /* max LP queues */ - .xPlicDmaLens = { 0 }, /* DMA lengths */ - .xPlicDmaToks = { 0 }, /* DMA tokens */ - .xSlicVpdLens = { /* VPD lengths */ - 0,0,0, /* 0 - 2 */ - sizeof(xItExtVpdPanel), /* 3 Extended VPD */ - sizeof(struct alpaca), /* 4 length of (fake) Paca */ - 0, /* 5 */ - sizeof(struct ItIplParmsReal),/* 6 length of IPL parms */ - 26992, /* 7 length of MS VPD */ - 0, /* 8 */ - sizeof(struct ItLpNaca),/* 9 length of LP Naca */ - 0, /* 10 */ - 256, /* 11 length of Recovery Log Buf */ - sizeof(struct SpCommArea), /* 12 length of SP Comm Area */ - 0,0,0, /* 13 - 15 */ - sizeof(struct IoHriProcessorVpd),/* 16 length of Proc Vpd */ - 0,0,0,0,0,0, /* 17 - 22 */ - sizeof(struct hvlpevent_queue), /* 23 length of Lp Queue */ - 0,0 /* 24 - 25 */ - }, - .xSlicVpdAdrs = { /* VPD addresses */ - 0,0,0, /* 0 - 2 */ - &xItExtVpdPanel, /* 3 Extended VPD */ - &alpaca[0], /* 4 first (fake) Paca */ - 0, /* 5 */ - &xItIplParmsReal, /* 6 IPL parms */ - &xMsVpd, /* 7 MS Vpd */ - 0, /* 8 */ - &itLpNaca, /* 9 LpNaca */ - 0, /* 10 */ - &xRecoveryLogBuffer, /* 11 Recovery Log Buffer */ - &xSpCommArea, /* 12 SP Comm Area */ - 0,0,0, /* 13 - 15 */ - &xIoHriProcessorVpd, /* 16 Proc Vpd */ - 0,0,0,0,0,0, /* 17 - 22 */ - &hvlpevent_queue, /* 23 Lp Queue */ - 0,0 - } -}; diff --git a/arch/powerpc/platforms/iseries/lpevents.c b/arch/powerpc/platforms/iseries/lpevents.c deleted file mode 100644 index 202e227..0000000 --- a/arch/powerpc/platforms/iseries/lpevents.c +++ /dev/null @@ -1,341 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/stddef.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/bootmem.h> -#include <linux/seq_file.h> -#include <linux/proc_fs.h> -#include <linux/export.h> - -#include <asm/system.h> -#include <asm/paca.h> -#include <asm/firmware.h> -#include <asm/iseries/it_lp_queue.h> -#include <asm/iseries/hv_lp_event.h> -#include <asm/iseries/hv_call_event.h> -#include "it_lp_naca.h" - -/* - * The LpQueue is used to pass event data from the hypervisor to - * the partition. This is where I/O interrupt events are communicated. - * - * It is written to by the hypervisor so cannot end up in the BSS. - */ -struct hvlpevent_queue hvlpevent_queue __attribute__((__section__(".data"))); - -DEFINE_PER_CPU(unsigned long[HvLpEvent_Type_NumTypes], hvlpevent_counts); - -static char *event_types[HvLpEvent_Type_NumTypes] = { - "Hypervisor", - "Machine Facilities", - "Session Manager", - "SPD I/O", - "Virtual Bus", - "PCI I/O", - "RIO I/O", - "Virtual Lan", - "Virtual I/O" -}; - -/* Array of LpEvent handler functions */ -static LpEventHandler lpEventHandler[HvLpEvent_Type_NumTypes]; -static unsigned lpEventHandlerPaths[HvLpEvent_Type_NumTypes]; - -static struct HvLpEvent * get_next_hvlpevent(void) -{ - struct HvLpEvent * event; - event = (struct HvLpEvent *)hvlpevent_queue.hq_current_event; - - if (hvlpevent_is_valid(event)) { - /* rmb() needed only for weakly consistent machines (regatta) */ - rmb(); - /* Set pointer to next potential event */ - hvlpevent_queue.hq_current_event += ((event->xSizeMinus1 + - IT_LP_EVENT_ALIGN) / IT_LP_EVENT_ALIGN) * - IT_LP_EVENT_ALIGN; - - /* Wrap to beginning if no room at end */ - if (hvlpevent_queue.hq_current_event > - hvlpevent_queue.hq_last_event) { - hvlpevent_queue.hq_current_event = - hvlpevent_queue.hq_event_stack; - } - } else { - event = NULL; - } - - return event; -} - -static unsigned long spread_lpevents = NR_CPUS; - -int hvlpevent_is_pending(void) -{ - struct HvLpEvent *next_event; - - if (smp_processor_id() >= spread_lpevents) - return 0; - - next_event = (struct HvLpEvent *)hvlpevent_queue.hq_current_event; - - return hvlpevent_is_valid(next_event) || - hvlpevent_queue.hq_overflow_pending; -} - -static void hvlpevent_clear_valid(struct HvLpEvent * event) -{ - /* Tell the Hypervisor that we're done with this event. - * Also clear bits within this event that might look like valid bits. - * ie. on 64-byte boundaries. - */ - struct HvLpEvent *tmp; - unsigned extra = ((event->xSizeMinus1 + IT_LP_EVENT_ALIGN) / - IT_LP_EVENT_ALIGN) - 1; - - switch (extra) { - case 3: - tmp = (struct HvLpEvent*)((char*)event + 3 * IT_LP_EVENT_ALIGN); - hvlpevent_invalidate(tmp); - case 2: - tmp = (struct HvLpEvent*)((char*)event + 2 * IT_LP_EVENT_ALIGN); - hvlpevent_invalidate(tmp); - case 1: - tmp = (struct HvLpEvent*)((char*)event + 1 * IT_LP_EVENT_ALIGN); - hvlpevent_invalidate(tmp); - } - - mb(); - - hvlpevent_invalidate(event); -} - -void process_hvlpevents(void) -{ - struct HvLpEvent * event; - - restart: - /* If we have recursed, just return */ - if (!spin_trylock(&hvlpevent_queue.hq_lock)) - return; - - for (;;) { - event = get_next_hvlpevent(); - if (event) { - /* Call appropriate handler here, passing - * a pointer to the LpEvent. The handler - * must make a copy of the LpEvent if it - * needs it in a bottom half. (perhaps for - * an ACK) - * - * Handlers are responsible for ACK processing - * - * The Hypervisor guarantees that LpEvents will - * only be delivered with types that we have - * registered for, so no type check is necessary - * here! - */ - if (event->xType < HvLpEvent_Type_NumTypes) - __get_cpu_var(hvlpevent_counts)[event->xType]++; - if (event->xType < HvLpEvent_Type_NumTypes && - lpEventHandler[event->xType]) - lpEventHandler[event->xType](event); - else { - u8 type = event->xType; - - /* - * Don't printk in the spinlock as printk - * may require ack events form the HV to send - * any characters there. - */ - hvlpevent_clear_valid(event); - spin_unlock(&hvlpevent_queue.hq_lock); - printk(KERN_INFO - "Unexpected Lp Event type=%d\n", type); - goto restart; - } - - hvlpevent_clear_valid(event); - } else if (hvlpevent_queue.hq_overflow_pending) - /* - * No more valid events. If overflow events are - * pending process them - */ - HvCallEvent_getOverflowLpEvents(hvlpevent_queue.hq_index); - else - break; - } - - spin_unlock(&hvlpevent_queue.hq_lock); -} - -static int set_spread_lpevents(char *str) -{ - unsigned long val = simple_strtoul(str, NULL, 0); - - /* - * The parameter is the number of processors to share in processing - * lp events. - */ - if (( val > 0) && (val <= NR_CPUS)) { - spread_lpevents = val; - printk("lpevent processing spread over %ld processors\n", val); - } else { - printk("invalid spread_lpevents %ld\n", val); - } - - return 1; -} -__setup("spread_lpevents=", set_spread_lpevents); - -void __init setup_hvlpevent_queue(void) -{ - void *eventStack; - - spin_lock_init(&hvlpevent_queue.hq_lock); - - /* Allocate a page for the Event Stack. */ - eventStack = alloc_bootmem_pages(IT_LP_EVENT_STACK_SIZE); - memset(eventStack, 0, IT_LP_EVENT_STACK_SIZE); - - /* Invoke the hypervisor to initialize the event stack */ - HvCallEvent_setLpEventStack(0, eventStack, IT_LP_EVENT_STACK_SIZE); - - hvlpevent_queue.hq_event_stack = eventStack; - hvlpevent_queue.hq_current_event = eventStack; - hvlpevent_queue.hq_last_event = (char *)eventStack + - (IT_LP_EVENT_STACK_SIZE - IT_LP_EVENT_MAX_SIZE); - hvlpevent_queue.hq_index = 0; -} - -/* Register a handler for an LpEvent type */ -int HvLpEvent_registerHandler(HvLpEvent_Type eventType, LpEventHandler handler) -{ - if (eventType < HvLpEvent_Type_NumTypes) { - lpEventHandler[eventType] = handler; - return 0; - } - return 1; -} -EXPORT_SYMBOL(HvLpEvent_registerHandler); - -int HvLpEvent_unregisterHandler(HvLpEvent_Type eventType) -{ - might_sleep(); - - if (eventType < HvLpEvent_Type_NumTypes) { - if (!lpEventHandlerPaths[eventType]) { - lpEventHandler[eventType] = NULL; - /* - * We now sleep until all other CPUs have scheduled. - * This ensures that the deletion is seen by all - * other CPUs, and that the deleted handler isn't - * still running on another CPU when we return. - */ - synchronize_sched(); - return 0; - } - } - return 1; -} -EXPORT_SYMBOL(HvLpEvent_unregisterHandler); - -/* - * lpIndex is the partition index of the target partition. - * needed only for VirtualIo, VirtualLan and SessionMgr. Zero - * indicates to use our partition index - for the other types. - */ -int HvLpEvent_openPath(HvLpEvent_Type eventType, HvLpIndex lpIndex) -{ - if ((eventType < HvLpEvent_Type_NumTypes) && - lpEventHandler[eventType]) { - if (lpIndex == 0) - lpIndex = itLpNaca.xLpIndex; - HvCallEvent_openLpEventPath(lpIndex, eventType); - ++lpEventHandlerPaths[eventType]; - return 0; - } - return 1; -} - -int HvLpEvent_closePath(HvLpEvent_Type eventType, HvLpIndex lpIndex) -{ - if ((eventType < HvLpEvent_Type_NumTypes) && - lpEventHandler[eventType] && - lpEventHandlerPaths[eventType]) { - if (lpIndex == 0) - lpIndex = itLpNaca.xLpIndex; - HvCallEvent_closeLpEventPath(lpIndex, eventType); - --lpEventHandlerPaths[eventType]; - return 0; - } - return 1; -} - -static int proc_lpevents_show(struct seq_file *m, void *v) -{ - int cpu, i; - unsigned long sum; - static unsigned long cpu_totals[NR_CPUS]; - - /* FIXME: do we care that there's no locking here? */ - sum = 0; - for_each_online_cpu(cpu) { - cpu_totals[cpu] = 0; - for (i = 0; i < HvLpEvent_Type_NumTypes; i++) { - cpu_totals[cpu] += per_cpu(hvlpevent_counts, cpu)[i]; - } - sum += cpu_totals[cpu]; - } - - seq_printf(m, "LpEventQueue 0\n"); - seq_printf(m, " events processed:\t%lu\n", sum); - - for (i = 0; i < HvLpEvent_Type_NumTypes; ++i) { - sum = 0; - for_each_online_cpu(cpu) { - sum += per_cpu(hvlpevent_counts, cpu)[i]; - } - - seq_printf(m, " %-20s %10lu\n", event_types[i], sum); - } - - seq_printf(m, "\n events processed by processor:\n"); - - for_each_online_cpu(cpu) { - seq_printf(m, " CPU%02d %10lu\n", cpu, cpu_totals[cpu]); - } - - return 0; -} - -static int proc_lpevents_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_lpevents_show, NULL); -} - -static const struct file_operations proc_lpevents_operations = { - .open = proc_lpevents_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int __init proc_lpevents_init(void) -{ - if (!firmware_has_feature(FW_FEATURE_ISERIES)) - return 0; - - proc_create("iSeries/lpevents", S_IFREG|S_IRUGO, NULL, - &proc_lpevents_operations); - return 0; -} -__initcall(proc_lpevents_init); - diff --git a/arch/powerpc/platforms/iseries/main_store.h b/arch/powerpc/platforms/iseries/main_store.h deleted file mode 100644 index 1a7a3f5..0000000 --- a/arch/powerpc/platforms/iseries/main_store.h +++ /dev/null @@ -1,165 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _ISERIES_MAIN_STORE_H -#define _ISERIES_MAIN_STORE_H - -/* Main Store Vpd for Condor,iStar,sStar */ -struct IoHriMainStoreSegment4 { - u8 msArea0Exists:1; - u8 msArea1Exists:1; - u8 msArea2Exists:1; - u8 msArea3Exists:1; - u8 reserved1:4; - u8 reserved2; - - u8 msArea0Functional:1; - u8 msArea1Functional:1; - u8 msArea2Functional:1; - u8 msArea3Functional:1; - u8 reserved3:4; - u8 reserved4; - - u32 totalMainStore; - - u64 msArea0Ptr; - u64 msArea1Ptr; - u64 msArea2Ptr; - u64 msArea3Ptr; - - u32 cardProductionLevel; - - u32 msAdrHole; - - u8 msArea0HasRiserVpd:1; - u8 msArea1HasRiserVpd:1; - u8 msArea2HasRiserVpd:1; - u8 msArea3HasRiserVpd:1; - u8 reserved5:4; - u8 reserved6; - u16 reserved7; - - u8 reserved8[28]; - - u64 nonInterleavedBlocksStartAdr; - u64 nonInterleavedBlocksEndAdr; -}; - -/* Main Store VPD for Power4 */ -struct __attribute((packed)) IoHriMainStoreChipInfo1 { - u32 chipMfgID; - char chipECLevel[4]; -}; - -struct IoHriMainStoreVpdIdData { - char typeNumber[4]; - char modelNumber[4]; - char partNumber[12]; - char serialNumber[12]; -}; - -struct __attribute((packed)) IoHriMainStoreVpdFruData { - char fruLabel[8]; - u8 numberOfSlots; - u8 pluggingType; - u16 slotMapIndex; -}; - -struct __attribute((packed)) IoHriMainStoreAdrRangeBlock { - void *blockStart; - void *blockEnd; - u32 blockProcChipId; -}; - -#define MaxAreaAdrRangeBlocks 4 - -struct __attribute((packed)) IoHriMainStoreArea4 { - u32 msVpdFormat; - u8 containedVpdType; - u8 reserved1; - u16 reserved2; - - u64 msExists; - u64 msFunctional; - - u32 memorySize; - u32 procNodeId; - - u32 numAdrRangeBlocks; - struct IoHriMainStoreAdrRangeBlock xAdrRangeBlock[MaxAreaAdrRangeBlocks]; - - struct IoHriMainStoreChipInfo1 chipInfo0; - struct IoHriMainStoreChipInfo1 chipInfo1; - struct IoHriMainStoreChipInfo1 chipInfo2; - struct IoHriMainStoreChipInfo1 chipInfo3; - struct IoHriMainStoreChipInfo1 chipInfo4; - struct IoHriMainStoreChipInfo1 chipInfo5; - struct IoHriMainStoreChipInfo1 chipInfo6; - struct IoHriMainStoreChipInfo1 chipInfo7; - - void *msRamAreaArray; - u32 msRamAreaArrayNumEntries; - u32 msRamAreaArrayEntrySize; - - u32 numaDimmExists; - u32 numaDimmFunctional; - void *numaDimmArray; - u32 numaDimmArrayNumEntries; - u32 numaDimmArrayEntrySize; - - struct IoHriMainStoreVpdIdData idData; - - u64 powerData; - u64 cardAssemblyPartNum; - u64 chipSerialNum; - - u64 reserved3; - char reserved4[16]; - - struct IoHriMainStoreVpdFruData fruData; - - u8 vpdPortNum; - u8 reserved5; - u8 frameId; - u8 rackUnit; - char asciiKeywordVpd[256]; - u32 reserved6; -}; - - -struct IoHriMainStoreSegment5 { - u16 reserved1; - u8 reserved2; - u8 msVpdFormat; - - u32 totalMainStore; - u64 maxConfiguredMsAdr; - - struct IoHriMainStoreArea4 *msAreaArray; - u32 msAreaArrayNumEntries; - u32 msAreaArrayEntrySize; - - u32 msAreaExists; - u32 msAreaFunctional; - - u64 reserved3; -}; - -extern u64 xMsVpd[]; - -#endif /* _ISERIES_MAIN_STORE_H */ diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c deleted file mode 100644 index 254c1fc..0000000 --- a/arch/powerpc/platforms/iseries/mf.c +++ /dev/null @@ -1,1275 +0,0 @@ -/* - * Copyright (C) 2001 Troy D. Armstrong IBM Corporation - * Copyright (C) 2004-2005 Stephen Rothwell IBM Corporation - * - * This modules exists as an interface between a Linux secondary partition - * running on an iSeries and the primary partition's Virtual Service - * Processor (VSP) object. The VSP has final authority over powering on/off - * all partitions in the iSeries. It also provides miscellaneous low-level - * machine facility type operations. - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/completion.h> -#include <linux/delay.h> -#include <linux/export.h> -#include <linux/proc_fs.h> -#include <linux/dma-mapping.h> -#include <linux/bcd.h> -#include <linux/rtc.h> -#include <linux/slab.h> - -#include <asm/time.h> -#include <asm/uaccess.h> -#include <asm/paca.h> -#include <asm/abs_addr.h> -#include <asm/firmware.h> -#include <asm/iseries/mf.h> -#include <asm/iseries/hv_lp_config.h> -#include <asm/iseries/hv_lp_event.h> -#include <asm/iseries/it_lp_queue.h> - -#include "setup.h" - -static int mf_initialized; - -/* - * This is the structure layout for the Machine Facilities LPAR event - * flows. - */ -struct vsp_cmd_data { - u64 token; - u16 cmd; - HvLpIndex lp_index; - u8 result_code; - u32 reserved; - union { - u64 state; /* GetStateOut */ - u64 ipl_type; /* GetIplTypeOut, Function02SelectIplTypeIn */ - u64 ipl_mode; /* GetIplModeOut, Function02SelectIplModeIn */ - u64 page[4]; /* GetSrcHistoryIn */ - u64 flag; /* GetAutoIplWhenPrimaryIplsOut, - SetAutoIplWhenPrimaryIplsIn, - WhiteButtonPowerOffIn, - Function08FastPowerOffIn, - IsSpcnRackPowerIncompleteOut */ - struct { - u64 token; - u64 address_type; - u64 side; - u32 length; - u32 offset; - } kern; /* SetKernelImageIn, GetKernelImageIn, - SetKernelCmdLineIn, GetKernelCmdLineIn */ - u32 length_out; /* GetKernelImageOut, GetKernelCmdLineOut */ - u8 reserved[80]; - } sub_data; -}; - -struct vsp_rsp_data { - struct completion com; - struct vsp_cmd_data *response; -}; - -struct alloc_data { - u16 size; - u16 type; - u32 count; - u16 reserved1; - u8 reserved2; - HvLpIndex target_lp; -}; - -struct ce_msg_data; - -typedef void (*ce_msg_comp_hdlr)(void *token, struct ce_msg_data *vsp_cmd_rsp); - -struct ce_msg_comp_data { - ce_msg_comp_hdlr handler; - void *token; -}; - -struct ce_msg_data { - u8 ce_msg[12]; - char reserved[4]; - struct ce_msg_comp_data *completion; -}; - -struct io_mf_lp_event { - struct HvLpEvent hp_lp_event; - u16 subtype_result_code; - u16 reserved1; - u32 reserved2; - union { - struct alloc_data alloc; - struct ce_msg_data ce_msg; - struct vsp_cmd_data vsp_cmd; - } data; -}; - -#define subtype_data(a, b, c, d) \ - (((a) << 24) + ((b) << 16) + ((c) << 8) + (d)) - -/* - * All outgoing event traffic is kept on a FIFO queue. The first - * pointer points to the one that is outstanding, and all new - * requests get stuck on the end. Also, we keep a certain number of - * preallocated pending events so that we can operate very early in - * the boot up sequence (before kmalloc is ready). - */ -struct pending_event { - struct pending_event *next; - struct io_mf_lp_event event; - MFCompleteHandler hdlr; - char dma_data[72]; - unsigned dma_data_length; - unsigned remote_address; -}; -static spinlock_t pending_event_spinlock; -static struct pending_event *pending_event_head; -static struct pending_event *pending_event_tail; -static struct pending_event *pending_event_avail; -#define PENDING_EVENT_PREALLOC_LEN 16 -static struct pending_event pending_event_prealloc[PENDING_EVENT_PREALLOC_LEN]; - -/* - * Put a pending event onto the available queue, so it can get reused. - * Attention! You must have the pending_event_spinlock before calling! - */ -static void free_pending_event(struct pending_event *ev) -{ - if (ev != NULL) { - ev->next = pending_event_avail; - pending_event_avail = ev; - } -} - -/* - * Enqueue the outbound event onto the stack. If the queue was - * empty to begin with, we must also issue it via the Hypervisor - * interface. There is a section of code below that will touch - * the first stack pointer without the protection of the pending_event_spinlock. - * This is OK, because we know that nobody else will be modifying - * the first pointer when we do this. - */ -static int signal_event(struct pending_event *ev) -{ - int rc = 0; - unsigned long flags; - int go = 1; - struct pending_event *ev1; - HvLpEvent_Rc hv_rc; - - /* enqueue the event */ - if (ev != NULL) { - ev->next = NULL; - spin_lock_irqsave(&pending_event_spinlock, flags); - if (pending_event_head == NULL) - pending_event_head = ev; - else { - go = 0; - pending_event_tail->next = ev; - } - pending_event_tail = ev; - spin_unlock_irqrestore(&pending_event_spinlock, flags); - } - - /* send the event */ - while (go) { - go = 0; - - /* any DMA data to send beforehand? */ - if (pending_event_head->dma_data_length > 0) - HvCallEvent_dmaToSp(pending_event_head->dma_data, - pending_event_head->remote_address, - pending_event_head->dma_data_length, - HvLpDma_Direction_LocalToRemote); - - hv_rc = HvCallEvent_signalLpEvent( - &pending_event_head->event.hp_lp_event); - if (hv_rc != HvLpEvent_Rc_Good) { - printk(KERN_ERR "mf.c: HvCallEvent_signalLpEvent() " - "failed with %d\n", (int)hv_rc); - - spin_lock_irqsave(&pending_event_spinlock, flags); - ev1 = pending_event_head; - pending_event_head = pending_event_head->next; - if (pending_event_head != NULL) - go = 1; - spin_unlock_irqrestore(&pending_event_spinlock, flags); - - if (ev1 == ev) - rc = -EIO; - else if (ev1->hdlr != NULL) - (*ev1->hdlr)((void *)ev1->event.hp_lp_event.xCorrelationToken, -EIO); - - spin_lock_irqsave(&pending_event_spinlock, flags); - free_pending_event(ev1); - spin_unlock_irqrestore(&pending_event_spinlock, flags); - } - } - - return rc; -} - -/* - * Allocate a new pending_event structure, and initialize it. - */ -static struct pending_event *new_pending_event(void) -{ - struct pending_event *ev = NULL; - HvLpIndex primary_lp = HvLpConfig_getPrimaryLpIndex(); - unsigned long flags; - struct HvLpEvent *hev; - - spin_lock_irqsave(&pending_event_spinlock, flags); - if (pending_event_avail != NULL) { - ev = pending_event_avail; - pending_event_avail = pending_event_avail->next; - } - spin_unlock_irqrestore(&pending_event_spinlock, flags); - if (ev == NULL) { - ev = kmalloc(sizeof(struct pending_event), GFP_ATOMIC); - if (ev == NULL) { - printk(KERN_ERR "mf.c: unable to kmalloc %ld bytes\n", - sizeof(struct pending_event)); - return NULL; - } - } - memset(ev, 0, sizeof(struct pending_event)); - hev = &ev->event.hp_lp_event; - hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DO_ACK | HV_LP_EVENT_INT; - hev->xType = HvLpEvent_Type_MachineFac; - hev->xSourceLp = HvLpConfig_getLpIndex(); - hev->xTargetLp = primary_lp; - hev->xSizeMinus1 = sizeof(ev->event) - 1; - hev->xRc = HvLpEvent_Rc_Good; - hev->xSourceInstanceId = HvCallEvent_getSourceLpInstanceId(primary_lp, - HvLpEvent_Type_MachineFac); - hev->xTargetInstanceId = HvCallEvent_getTargetLpInstanceId(primary_lp, - HvLpEvent_Type_MachineFac); - - return ev; -} - -static int __maybe_unused -signal_vsp_instruction(struct vsp_cmd_data *vsp_cmd) -{ - struct pending_event *ev = new_pending_event(); - int rc; - struct vsp_rsp_data response; - - if (ev == NULL) - return -ENOMEM; - - init_completion(&response.com); - response.response = vsp_cmd; - ev->event.hp_lp_event.xSubtype = 6; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'V', 'I'); - ev->event.data.vsp_cmd.token = (u64)&response; - ev->event.data.vsp_cmd.cmd = vsp_cmd->cmd; - ev->event.data.vsp_cmd.lp_index = HvLpConfig_getLpIndex(); - ev->event.data.vsp_cmd.result_code = 0xFF; - ev->event.data.vsp_cmd.reserved = 0; - memcpy(&(ev->event.data.vsp_cmd.sub_data), - &(vsp_cmd->sub_data), sizeof(vsp_cmd->sub_data)); - mb(); - - rc = signal_event(ev); - if (rc == 0) - wait_for_completion(&response.com); - return rc; -} - - -/* - * Send a 12-byte CE message to the primary partition VSP object - */ -static int signal_ce_msg(char *ce_msg, struct ce_msg_comp_data *completion) -{ - struct pending_event *ev = new_pending_event(); - - if (ev == NULL) - return -ENOMEM; - - ev->event.hp_lp_event.xSubtype = 0; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'C', 'E'); - memcpy(ev->event.data.ce_msg.ce_msg, ce_msg, 12); - ev->event.data.ce_msg.completion = completion; - return signal_event(ev); -} - -/* - * Send a 12-byte CE message (with no data) to the primary partition VSP object - */ -static int signal_ce_msg_simple(u8 ce_op, struct ce_msg_comp_data *completion) -{ - u8 ce_msg[12]; - - memset(ce_msg, 0, sizeof(ce_msg)); - ce_msg[3] = ce_op; - return signal_ce_msg(ce_msg, completion); -} - -/* - * Send a 12-byte CE message and DMA data to the primary partition VSP object - */ -static int dma_and_signal_ce_msg(char *ce_msg, - struct ce_msg_comp_data *completion, void *dma_data, - unsigned dma_data_length, unsigned remote_address) -{ - struct pending_event *ev = new_pending_event(); - - if (ev == NULL) - return -ENOMEM; - - ev->event.hp_lp_event.xSubtype = 0; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'C', 'E'); - memcpy(ev->event.data.ce_msg.ce_msg, ce_msg, 12); - ev->event.data.ce_msg.completion = completion; - memcpy(ev->dma_data, dma_data, dma_data_length); - ev->dma_data_length = dma_data_length; - ev->remote_address = remote_address; - return signal_event(ev); -} - -/* - * Initiate a nice (hopefully) shutdown of Linux. We simply are - * going to try and send the init process a SIGINT signal. If - * this fails (why?), we'll simply force it off in a not-so-nice - * manner. - */ -static int shutdown(void) -{ - int rc = kill_cad_pid(SIGINT, 1); - - if (rc) { - printk(KERN_ALERT "mf.c: SIGINT to init failed (%d), " - "hard shutdown commencing\n", rc); - mf_power_off(); - } else - printk(KERN_INFO "mf.c: init has been successfully notified " - "to proceed with shutdown\n"); - return rc; -} - -/* - * The primary partition VSP object is sending us a new - * event flow. Handle it... - */ -static void handle_int(struct io_mf_lp_event *event) -{ - struct ce_msg_data *ce_msg_data; - struct ce_msg_data *pce_msg_data; - unsigned long flags; - struct pending_event *pev; - - /* ack the interrupt */ - event->hp_lp_event.xRc = HvLpEvent_Rc_Good; - HvCallEvent_ackLpEvent(&event->hp_lp_event); - - /* process interrupt */ - switch (event->hp_lp_event.xSubtype) { - case 0: /* CE message */ - ce_msg_data = &event->data.ce_msg; - switch (ce_msg_data->ce_msg[3]) { - case 0x5B: /* power control notification */ - if ((ce_msg_data->ce_msg[5] & 0x20) != 0) { - printk(KERN_INFO "mf.c: Commencing partition shutdown\n"); - if (shutdown() == 0) - signal_ce_msg_simple(0xDB, NULL); - } - break; - case 0xC0: /* get time */ - spin_lock_irqsave(&pending_event_spinlock, flags); - pev = pending_event_head; - if (pev != NULL) - pending_event_head = pending_event_head->next; - spin_unlock_irqrestore(&pending_event_spinlock, flags); - if (pev == NULL) - break; - pce_msg_data = &pev->event.data.ce_msg; - if (pce_msg_data->ce_msg[3] != 0x40) - break; - if (pce_msg_data->completion != NULL) { - ce_msg_comp_hdlr handler = - pce_msg_data->completion->handler; - void *token = pce_msg_data->completion->token; - - if (handler != NULL) - (*handler)(token, ce_msg_data); - } - spin_lock_irqsave(&pending_event_spinlock, flags); - free_pending_event(pev); - spin_unlock_irqrestore(&pending_event_spinlock, flags); - /* send next waiting event */ - if (pending_event_head != NULL) - signal_event(NULL); - break; - } - break; - case 1: /* IT sys shutdown */ - printk(KERN_INFO "mf.c: Commencing system shutdown\n"); - shutdown(); - break; - } -} - -/* - * The primary partition VSP object is acknowledging the receipt - * of a flow we sent to them. If there are other flows queued - * up, we must send another one now... - */ -static void handle_ack(struct io_mf_lp_event *event) -{ - unsigned long flags; - struct pending_event *two = NULL; - unsigned long free_it = 0; - struct ce_msg_data *ce_msg_data; - struct ce_msg_data *pce_msg_data; - struct vsp_rsp_data *rsp; - - /* handle current event */ - if (pending_event_head == NULL) { - printk(KERN_ERR "mf.c: stack empty for receiving ack\n"); - return; - } - - switch (event->hp_lp_event.xSubtype) { - case 0: /* CE msg */ - ce_msg_data = &event->data.ce_msg; - if (ce_msg_data->ce_msg[3] != 0x40) { - free_it = 1; - break; - } - if (ce_msg_data->ce_msg[2] == 0) - break; - free_it = 1; - pce_msg_data = &pending_event_head->event.data.ce_msg; - if (pce_msg_data->completion != NULL) { - ce_msg_comp_hdlr handler = - pce_msg_data->completion->handler; - void *token = pce_msg_data->completion->token; - - if (handler != NULL) - (*handler)(token, ce_msg_data); - } - break; - case 4: /* allocate */ - case 5: /* deallocate */ - if (pending_event_head->hdlr != NULL) - (*pending_event_head->hdlr)((void *)event->hp_lp_event.xCorrelationToken, event->data.alloc.count); - free_it = 1; - break; - case 6: - free_it = 1; - rsp = (struct vsp_rsp_data *)event->data.vsp_cmd.token; - if (rsp == NULL) { - printk(KERN_ERR "mf.c: no rsp\n"); - break; - } - if (rsp->response != NULL) - memcpy(rsp->response, &event->data.vsp_cmd, - sizeof(event->data.vsp_cmd)); - complete(&rsp->com); - break; - } - - /* remove from queue */ - spin_lock_irqsave(&pending_event_spinlock, flags); - if ((pending_event_head != NULL) && (free_it == 1)) { - struct pending_event *oldHead = pending_event_head; - - pending_event_head = pending_event_head->next; - two = pending_event_head; - free_pending_event(oldHead); - } - spin_unlock_irqrestore(&pending_event_spinlock, flags); - - /* send next waiting event */ - if (two != NULL) - signal_event(NULL); -} - -/* - * This is the generic event handler we are registering with - * the Hypervisor. Ensure the flows are for us, and then - * parse it enough to know if it is an interrupt or an - * acknowledge. - */ -static void hv_handler(struct HvLpEvent *event) -{ - if ((event != NULL) && (event->xType == HvLpEvent_Type_MachineFac)) { - if (hvlpevent_is_ack(event)) - handle_ack((struct io_mf_lp_event *)event); - else - handle_int((struct io_mf_lp_event *)event); - } else - printk(KERN_ERR "mf.c: alien event received\n"); -} - -/* - * Global kernel interface to allocate and seed events into the - * Hypervisor. - */ -void mf_allocate_lp_events(HvLpIndex target_lp, HvLpEvent_Type type, - unsigned size, unsigned count, MFCompleteHandler hdlr, - void *user_token) -{ - struct pending_event *ev = new_pending_event(); - int rc; - - if (ev == NULL) { - rc = -ENOMEM; - } else { - ev->event.hp_lp_event.xSubtype = 4; - ev->event.hp_lp_event.xCorrelationToken = (u64)user_token; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'M', 'A'); - ev->event.data.alloc.target_lp = target_lp; - ev->event.data.alloc.type = type; - ev->event.data.alloc.size = size; - ev->event.data.alloc.count = count; - ev->hdlr = hdlr; - rc = signal_event(ev); - } - if ((rc != 0) && (hdlr != NULL)) - (*hdlr)(user_token, rc); -} -EXPORT_SYMBOL(mf_allocate_lp_events); - -/* - * Global kernel interface to unseed and deallocate events already in - * Hypervisor. - */ -void mf_deallocate_lp_events(HvLpIndex target_lp, HvLpEvent_Type type, - unsigned count, MFCompleteHandler hdlr, void *user_token) -{ - struct pending_event *ev = new_pending_event(); - int rc; - - if (ev == NULL) - rc = -ENOMEM; - else { - ev->event.hp_lp_event.xSubtype = 5; - ev->event.hp_lp_event.xCorrelationToken = (u64)user_token; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'M', 'D'); - ev->event.data.alloc.target_lp = target_lp; - ev->event.data.alloc.type = type; - ev->event.data.alloc.count = count; - ev->hdlr = hdlr; - rc = signal_event(ev); - } - if ((rc != 0) && (hdlr != NULL)) - (*hdlr)(user_token, rc); -} -EXPORT_SYMBOL(mf_deallocate_lp_events); - -/* - * Global kernel interface to tell the VSP object in the primary - * partition to power this partition off. - */ -void mf_power_off(void) -{ - printk(KERN_INFO "mf.c: Down it goes...\n"); - signal_ce_msg_simple(0x4d, NULL); - for (;;) - ; -} - -/* - * Global kernel interface to tell the VSP object in the primary - * partition to reboot this partition. - */ -void mf_reboot(char *cmd) -{ - printk(KERN_INFO "mf.c: Preparing to bounce...\n"); - signal_ce_msg_simple(0x4e, NULL); - for (;;) - ; -} - -/* - * Display a single word SRC onto the VSP control panel. - */ -void mf_display_src(u32 word) -{ - u8 ce[12]; - - memset(ce, 0, sizeof(ce)); - ce[3] = 0x4a; - ce[7] = 0x01; - ce[8] = word >> 24; - ce[9] = word >> 16; - ce[10] = word >> 8; - ce[11] = word; - signal_ce_msg(ce, NULL); -} - -/* - * Display a single word SRC of the form "PROGXXXX" on the VSP control panel. - */ -static __init void mf_display_progress_src(u16 value) -{ - u8 ce[12]; - u8 src[72]; - - memcpy(ce, "\x00\x00\x04\x4A\x00\x00\x00\x48\x00\x00\x00\x00", 12); - memcpy(src, "\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00" - "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" - "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" - "\x00\x00\x00\x00PROGxxxx ", - 72); - src[6] = value >> 8; - src[7] = value & 255; - src[44] = "0123456789ABCDEF"[(value >> 12) & 15]; - src[45] = "0123456789ABCDEF"[(value >> 8) & 15]; - src[46] = "0123456789ABCDEF"[(value >> 4) & 15]; - src[47] = "0123456789ABCDEF"[value & 15]; - dma_and_signal_ce_msg(ce, NULL, src, sizeof(src), 9 * 64 * 1024); -} - -/* - * Clear the VSP control panel. Used to "erase" an SRC that was - * previously displayed. - */ -static void mf_clear_src(void) -{ - signal_ce_msg_simple(0x4b, NULL); -} - -void __init mf_display_progress(u16 value) -{ - if (!mf_initialized) - return; - - if (0xFFFF == value) - mf_clear_src(); - else - mf_display_progress_src(value); -} - -/* - * Initialization code here. - */ -void __init mf_init(void) -{ - int i; - - spin_lock_init(&pending_event_spinlock); - - for (i = 0; i < PENDING_EVENT_PREALLOC_LEN; i++) - free_pending_event(&pending_event_prealloc[i]); - - HvLpEvent_registerHandler(HvLpEvent_Type_MachineFac, &hv_handler); - - /* virtual continue ack */ - signal_ce_msg_simple(0x57, NULL); - - mf_initialized = 1; - mb(); - - printk(KERN_NOTICE "mf.c: iSeries Linux LPAR Machine Facilities " - "initialized\n"); -} - -struct rtc_time_data { - struct completion com; - struct ce_msg_data ce_msg; - int rc; -}; - -static void get_rtc_time_complete(void *token, struct ce_msg_data *ce_msg) -{ - struct rtc_time_data *rtc = token; - - memcpy(&rtc->ce_msg, ce_msg, sizeof(rtc->ce_msg)); - rtc->rc = 0; - complete(&rtc->com); -} - -static int mf_set_rtc(struct rtc_time *tm) -{ - char ce_time[12]; - u8 day, mon, hour, min, sec, y1, y2; - unsigned year; - - year = 1900 + tm->tm_year; - y1 = year / 100; - y2 = year % 100; - - sec = tm->tm_sec; - min = tm->tm_min; - hour = tm->tm_hour; - day = tm->tm_mday; - mon = tm->tm_mon + 1; - - sec = bin2bcd(sec); - min = bin2bcd(min); - hour = bin2bcd(hour); - mon = bin2bcd(mon); - day = bin2bcd(day); - y1 = bin2bcd(y1); - y2 = bin2bcd(y2); - - memset(ce_time, 0, sizeof(ce_time)); - ce_time[3] = 0x41; - ce_time[4] = y1; - ce_time[5] = y2; - ce_time[6] = sec; - ce_time[7] = min; - ce_time[8] = hour; - ce_time[10] = day; - ce_time[11] = mon; - - return signal_ce_msg(ce_time, NULL); -} - -static int rtc_set_tm(int rc, u8 *ce_msg, struct rtc_time *tm) -{ - tm->tm_wday = 0; - tm->tm_yday = 0; - tm->tm_isdst = 0; - if (rc) { - tm->tm_sec = 0; - tm->tm_min = 0; - tm->tm_hour = 0; - tm->tm_mday = 15; - tm->tm_mon = 5; - tm->tm_year = 52; - return rc; - } - - if ((ce_msg[2] == 0xa9) || - (ce_msg[2] == 0xaf)) { - /* TOD clock is not set */ - tm->tm_sec = 1; - tm->tm_min = 1; - tm->tm_hour = 1; - tm->tm_mday = 10; - tm->tm_mon = 8; - tm->tm_year = 71; - mf_set_rtc(tm); - } - { - u8 year = ce_msg[5]; - u8 sec = ce_msg[6]; - u8 min = ce_msg[7]; - u8 hour = ce_msg[8]; - u8 day = ce_msg[10]; - u8 mon = ce_msg[11]; - - sec = bcd2bin(sec); - min = bcd2bin(min); - hour = bcd2bin(hour); - day = bcd2bin(day); - mon = bcd2bin(mon); - year = bcd2bin(year); - - if (year <= 69) - year += 100; - - tm->tm_sec = sec; - tm->tm_min = min; - tm->tm_hour = hour; - tm->tm_mday = day; - tm->tm_mon = mon; - tm->tm_year = year; - } - - return 0; -} - -static int mf_get_rtc(struct rtc_time *tm) -{ - struct ce_msg_comp_data ce_complete; - struct rtc_time_data rtc_data; - int rc; - - memset(&ce_complete, 0, sizeof(ce_complete)); - memset(&rtc_data, 0, sizeof(rtc_data)); - init_completion(&rtc_data.com); - ce_complete.handler = &get_rtc_time_complete; - ce_complete.token = &rtc_data; - rc = signal_ce_msg_simple(0x40, &ce_complete); - if (rc) - return rc; - wait_for_completion(&rtc_data.com); - return rtc_set_tm(rtc_data.rc, rtc_data.ce_msg.ce_msg, tm); -} - -struct boot_rtc_time_data { - int busy; - struct ce_msg_data ce_msg; - int rc; -}; - -static void get_boot_rtc_time_complete(void *token, struct ce_msg_data *ce_msg) -{ - struct boot_rtc_time_data *rtc = token; - - memcpy(&rtc->ce_msg, ce_msg, sizeof(rtc->ce_msg)); - rtc->rc = 0; - rtc->busy = 0; -} - -static int mf_get_boot_rtc(struct rtc_time *tm) -{ - struct ce_msg_comp_data ce_complete; - struct boot_rtc_time_data rtc_data; - int rc; - - memset(&ce_complete, 0, sizeof(ce_complete)); - memset(&rtc_data, 0, sizeof(rtc_data)); - rtc_data.busy = 1; - ce_complete.handler = &get_boot_rtc_time_complete; - ce_complete.token = &rtc_data; - rc = signal_ce_msg_simple(0x40, &ce_complete); - if (rc) - return rc; - /* We need to poll here as we are not yet taking interrupts */ - while (rtc_data.busy) { - if (hvlpevent_is_pending()) - process_hvlpevents(); - } - return rtc_set_tm(rtc_data.rc, rtc_data.ce_msg.ce_msg, tm); -} - -#ifdef CONFIG_PROC_FS -static int mf_cmdline_proc_show(struct seq_file *m, void *v) -{ - char *page, *p; - struct vsp_cmd_data vsp_cmd; - int rc; - dma_addr_t dma_addr; - - /* The HV appears to return no more than 256 bytes of command line */ - page = kmalloc(256, GFP_KERNEL); - if (!page) - return -ENOMEM; - - dma_addr = iseries_hv_map(page, 256, DMA_FROM_DEVICE); - if (dma_addr == DMA_ERROR_CODE) { - kfree(page); - return -ENOMEM; - } - memset(page, 0, 256); - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.cmd = 33; - vsp_cmd.sub_data.kern.token = dma_addr; - vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex; - vsp_cmd.sub_data.kern.side = (u64)m->private; - vsp_cmd.sub_data.kern.length = 256; - mb(); - rc = signal_vsp_instruction(&vsp_cmd); - iseries_hv_unmap(dma_addr, 256, DMA_FROM_DEVICE); - if (rc) { - kfree(page); - return rc; - } - if (vsp_cmd.result_code != 0) { - kfree(page); - return -ENOMEM; - } - p = page; - while (p - page < 256) { - if (*p == '\0' || *p == '\n') { - *p = '\n'; - break; - } - p++; - - } - seq_write(m, page, p - page); - kfree(page); - return 0; -} - -static int mf_cmdline_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, mf_cmdline_proc_show, PDE(inode)->data); -} - -#if 0 -static int mf_getVmlinuxChunk(char *buffer, int *size, int offset, u64 side) -{ - struct vsp_cmd_data vsp_cmd; - int rc; - int len = *size; - dma_addr_t dma_addr; - - dma_addr = iseries_hv_map(buffer, len, DMA_FROM_DEVICE); - memset(buffer, 0, len); - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.cmd = 32; - vsp_cmd.sub_data.kern.token = dma_addr; - vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex; - vsp_cmd.sub_data.kern.side = side; - vsp_cmd.sub_data.kern.offset = offset; - vsp_cmd.sub_data.kern.length = len; - mb(); - rc = signal_vsp_instruction(&vsp_cmd); - if (rc == 0) { - if (vsp_cmd.result_code == 0) - *size = vsp_cmd.sub_data.length_out; - else - rc = -ENOMEM; - } - - iseries_hv_unmap(dma_addr, len, DMA_FROM_DEVICE); - - return rc; -} - -static int proc_mf_dump_vmlinux(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int sizeToGet = count; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - - if (mf_getVmlinuxChunk(page, &sizeToGet, off, (u64)data) == 0) { - if (sizeToGet != 0) { - *start = page + off; - return sizeToGet; - } - *eof = 1; - return 0; - } - *eof = 1; - return 0; -} -#endif - -static int mf_side_proc_show(struct seq_file *m, void *v) -{ - char mf_current_side = ' '; - struct vsp_cmd_data vsp_cmd; - - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.cmd = 2; - vsp_cmd.sub_data.ipl_type = 0; - mb(); - - if (signal_vsp_instruction(&vsp_cmd) == 0) { - if (vsp_cmd.result_code == 0) { - switch (vsp_cmd.sub_data.ipl_type) { - case 0: mf_current_side = 'A'; - break; - case 1: mf_current_side = 'B'; - break; - case 2: mf_current_side = 'C'; - break; - default: mf_current_side = 'D'; - break; - } - } - } - - seq_printf(m, "%c\n", mf_current_side); - return 0; -} - -static int mf_side_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, mf_side_proc_show, NULL); -} - -static ssize_t mf_side_proc_write(struct file *file, const char __user *buffer, - size_t count, loff_t *pos) -{ - char side; - u64 newSide; - struct vsp_cmd_data vsp_cmd; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - - if (count == 0) - return 0; - - if (get_user(side, buffer)) - return -EFAULT; - - switch (side) { - case 'A': newSide = 0; - break; - case 'B': newSide = 1; - break; - case 'C': newSide = 2; - break; - case 'D': newSide = 3; - break; - default: - printk(KERN_ERR "mf_proc.c: proc_mf_change_side: invalid side\n"); - return -EINVAL; - } - - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.sub_data.ipl_type = newSide; - vsp_cmd.cmd = 10; - - (void)signal_vsp_instruction(&vsp_cmd); - - return count; -} - -static const struct file_operations mf_side_proc_fops = { - .owner = THIS_MODULE, - .open = mf_side_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .write = mf_side_proc_write, -}; - -static int mf_src_proc_show(struct seq_file *m, void *v) -{ - return 0; -} - -static int mf_src_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, mf_src_proc_show, NULL); -} - -static ssize_t mf_src_proc_write(struct file *file, const char __user *buffer, - size_t count, loff_t *pos) -{ - char stkbuf[10]; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - - if ((count < 4) && (count != 1)) { - printk(KERN_ERR "mf_proc: invalid src\n"); - return -EINVAL; - } - - if (count > (sizeof(stkbuf) - 1)) - count = sizeof(stkbuf) - 1; - if (copy_from_user(stkbuf, buffer, count)) - return -EFAULT; - - if ((count == 1) && (*stkbuf == '\0')) - mf_clear_src(); - else - mf_display_src(*(u32 *)stkbuf); - - return count; -} - -static const struct file_operations mf_src_proc_fops = { - .owner = THIS_MODULE, - .open = mf_src_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .write = mf_src_proc_write, -}; - -static ssize_t mf_cmdline_proc_write(struct file *file, const char __user *buffer, - size_t count, loff_t *pos) -{ - void *data = PDE(file->f_path.dentry->d_inode)->data; - struct vsp_cmd_data vsp_cmd; - dma_addr_t dma_addr; - char *page; - int ret = -EACCES; - - if (!capable(CAP_SYS_ADMIN)) - goto out; - - dma_addr = 0; - page = iseries_hv_alloc(count, &dma_addr, GFP_ATOMIC); - ret = -ENOMEM; - if (page == NULL) - goto out; - - ret = -EFAULT; - if (copy_from_user(page, buffer, count)) - goto out_free; - - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.cmd = 31; - vsp_cmd.sub_data.kern.token = dma_addr; - vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex; - vsp_cmd.sub_data.kern.side = (u64)data; - vsp_cmd.sub_data.kern.length = count; - mb(); - (void)signal_vsp_instruction(&vsp_cmd); - ret = count; - -out_free: - iseries_hv_free(count, page, dma_addr); -out: - return ret; -} - -static const struct file_operations mf_cmdline_proc_fops = { - .owner = THIS_MODULE, - .open = mf_cmdline_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .write = mf_cmdline_proc_write, -}; - -static ssize_t proc_mf_change_vmlinux(struct file *file, - const char __user *buf, - size_t count, loff_t *ppos) -{ - struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode); - ssize_t rc; - dma_addr_t dma_addr; - char *page; - struct vsp_cmd_data vsp_cmd; - - rc = -EACCES; - if (!capable(CAP_SYS_ADMIN)) - goto out; - - dma_addr = 0; - page = iseries_hv_alloc(count, &dma_addr, GFP_ATOMIC); - rc = -ENOMEM; - if (page == NULL) { - printk(KERN_ERR "mf.c: couldn't allocate memory to set vmlinux chunk\n"); - goto out; - } - rc = -EFAULT; - if (copy_from_user(page, buf, count)) - goto out_free; - - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.cmd = 30; - vsp_cmd.sub_data.kern.token = dma_addr; - vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex; - vsp_cmd.sub_data.kern.side = (u64)dp->data; - vsp_cmd.sub_data.kern.offset = *ppos; - vsp_cmd.sub_data.kern.length = count; - mb(); - rc = signal_vsp_instruction(&vsp_cmd); - if (rc) - goto out_free; - rc = -ENOMEM; - if (vsp_cmd.result_code != 0) - goto out_free; - - *ppos += count; - rc = count; -out_free: - iseries_hv_free(count, page, dma_addr); -out: - return rc; -} - -static const struct file_operations proc_vmlinux_operations = { - .write = proc_mf_change_vmlinux, - .llseek = default_llseek, -}; - -static int __init mf_proc_init(void) -{ - struct proc_dir_entry *mf_proc_root; - struct proc_dir_entry *ent; - struct proc_dir_entry *mf; - char name[2]; - int i; - - if (!firmware_has_feature(FW_FEATURE_ISERIES)) - return 0; - - mf_proc_root = proc_mkdir("iSeries/mf", NULL); - if (!mf_proc_root) - return 1; - - name[1] = '\0'; - for (i = 0; i < 4; i++) { - name[0] = 'A' + i; - mf = proc_mkdir(name, mf_proc_root); - if (!mf) - return 1; - - ent = proc_create_data("cmdline", S_IRUSR|S_IWUSR, mf, - &mf_cmdline_proc_fops, (void *)(long)i); - if (!ent) - return 1; - - if (i == 3) /* no vmlinux entry for 'D' */ - continue; - - ent = proc_create_data("vmlinux", S_IFREG|S_IWUSR, mf, - &proc_vmlinux_operations, - (void *)(long)i); - if (!ent) - return 1; - } - - ent = proc_create("side", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root, - &mf_side_proc_fops); - if (!ent) - return 1; - - ent = proc_create("src", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root, - &mf_src_proc_fops); - if (!ent) - return 1; - - return 0; -} - -__initcall(mf_proc_init); - -#endif /* CONFIG_PROC_FS */ - -/* - * Get the RTC from the virtual service processor - * This requires flowing LpEvents to the primary partition - */ -void iSeries_get_rtc_time(struct rtc_time *rtc_tm) -{ - mf_get_rtc(rtc_tm); - rtc_tm->tm_mon--; -} - -/* - * Set the RTC in the virtual service processor - * This requires flowing LpEvents to the primary partition - */ -int iSeries_set_rtc_time(struct rtc_time *tm) -{ - mf_set_rtc(tm); - return 0; -} - -unsigned long iSeries_get_boot_time(void) -{ - struct rtc_time tm; - - mf_get_boot_rtc(&tm); - return mktime(tm.tm_year + 1900, tm.tm_mon, tm.tm_mday, - tm.tm_hour, tm.tm_min, tm.tm_sec); -} diff --git a/arch/powerpc/platforms/iseries/misc.S b/arch/powerpc/platforms/iseries/misc.S deleted file mode 100644 index 2c6ff0f..0000000 --- a/arch/powerpc/platforms/iseries/misc.S +++ /dev/null @@ -1,26 +0,0 @@ -/* - * This file contains miscellaneous low-level functions. - * Copyright (C) 1995-2005 IBM Corp - * - * Largely rewritten by Cort Dougan (cort@cs.nmt.edu) - * and Paul Mackerras. - * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com) - * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <asm/processor.h> -#include <asm/asm-offsets.h> -#include <asm/ppc_asm.h> - - .text - -/* Handle pending interrupts in interrupt context */ -_GLOBAL(iseries_handle_interrupts) - li r0,0x5555 - sc - blr diff --git a/arch/powerpc/platforms/iseries/naca.h b/arch/powerpc/platforms/iseries/naca.h deleted file mode 100644 index f01708e..0000000 --- a/arch/powerpc/platforms/iseries/naca.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef _PLATFORMS_ISERIES_NACA_H -#define _PLATFORMS_ISERIES_NACA_H - -/* - * c 2001 PPC 64 Team, IBM Corp - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <asm/types.h> - -struct naca_struct { - /* Kernel only data - undefined for user space */ - const void *xItVpdAreas; /* VPD Data 0x00 */ - void *xRamDisk; /* iSeries ramdisk 0x08 */ - u64 xRamDiskSize; /* In pages 0x10 */ -}; - -extern struct naca_struct naca; - -#endif /* _PLATFORMS_ISERIES_NACA_H */ diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c deleted file mode 100644 index c754128..0000000 --- a/arch/powerpc/platforms/iseries/pci.c +++ /dev/null @@ -1,919 +0,0 @@ -/* - * Copyright (C) 2001 Allan Trautman, IBM Corporation - * Copyright (C) 2005,2007 Stephen Rothwell, IBM Corp - * - * iSeries specific routines for PCI. - * - * Based on code from pci.c and iSeries_pci.c 32bit - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#undef DEBUG - -#include <linux/jiffies.h> -#include <linux/kernel.h> -#include <linux/list.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/of.h> -#include <linux/ratelimit.h> - -#include <asm/types.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/prom.h> -#include <asm/machdep.h> -#include <asm/pci-bridge.h> -#include <asm/iommu.h> -#include <asm/abs_addr.h> -#include <asm/firmware.h> - -#include <asm/iseries/hv_types.h> -#include <asm/iseries/hv_call_xm.h> -#include <asm/iseries/mf.h> -#include <asm/iseries/iommu.h> - -#include <asm/ppc-pci.h> - -#include "irq.h" -#include "pci.h" -#include "call_pci.h" - -#define PCI_RETRY_MAX 3 -static int limit_pci_retries = 1; /* Set Retry Error on. */ - -/* - * Table defines - * Each Entry size is 4 MB * 1024 Entries = 4GB I/O address space. - */ -#define IOMM_TABLE_MAX_ENTRIES 1024 -#define IOMM_TABLE_ENTRY_SIZE 0x0000000000400000UL -#define BASE_IO_MEMORY 0xE000000000000000UL -#define END_IO_MEMORY 0xEFFFFFFFFFFFFFFFUL - -static unsigned long max_io_memory = BASE_IO_MEMORY; -static long current_iomm_table_entry; - -/* - * Lookup Tables. - */ -static struct device_node *iomm_table[IOMM_TABLE_MAX_ENTRIES]; -static u64 ds_addr_table[IOMM_TABLE_MAX_ENTRIES]; - -static DEFINE_SPINLOCK(iomm_table_lock); - -/* - * Generate a Direct Select Address for the Hypervisor - */ -static inline u64 iseries_ds_addr(struct device_node *node) -{ - struct pci_dn *pdn = PCI_DN(node); - const u32 *sbp = of_get_property(node, "linux,subbus", NULL); - - return ((u64)pdn->busno << 48) + ((u64)(sbp ? *sbp : 0) << 40) - + ((u64)0x10 << 32); -} - -/* - * Size of Bus VPD data - */ -#define BUS_VPDSIZE 1024 - -/* - * Bus Vpd Tags - */ -#define VPD_END_OF_AREA 0x79 -#define VPD_ID_STRING 0x82 -#define VPD_VENDOR_AREA 0x84 - -/* - * Mfg Area Tags - */ -#define VPD_FRU_FRAME_ID 0x4649 /* "FI" */ -#define VPD_SLOT_MAP_FORMAT 0x4D46 /* "MF" */ -#define VPD_SLOT_MAP 0x534D /* "SM" */ - -/* - * Structures of the areas - */ -struct mfg_vpd_area { - u16 tag; - u8 length; - u8 data1; - u8 data2; -}; -#define MFG_ENTRY_SIZE 3 - -struct slot_map { - u8 agent; - u8 secondary_agent; - u8 phb; - char card_location[3]; - char parms[8]; - char reserved[2]; -}; -#define SLOT_ENTRY_SIZE 16 - -/* - * Parse the Slot Area - */ -static void __init iseries_parse_slot_area(struct slot_map *map, int len, - HvAgentId agent, u8 *phb, char card[4]) -{ - /* - * Parse Slot label until we find the one requested - */ - while (len > 0) { - if (map->agent == agent) { - /* - * If Phb wasn't found, grab the entry first one found. - */ - if (*phb == 0xff) - *phb = map->phb; - /* Found it, extract the data. */ - if (map->phb == *phb) { - memcpy(card, &map->card_location, 3); - card[3] = 0; - break; - } - } - /* Point to the next Slot */ - map = (struct slot_map *)((char *)map + SLOT_ENTRY_SIZE); - len -= SLOT_ENTRY_SIZE; - } -} - -/* - * Parse the Mfg Area - */ -static void __init iseries_parse_mfg_area(struct mfg_vpd_area *area, int len, - HvAgentId agent, u8 *phb, u8 *frame, char card[4]) -{ - u16 slot_map_fmt = 0; - - /* Parse Mfg Data */ - while (len > 0) { - int mfg_tag_len = area->length; - /* Frame ID (FI 4649020310 ) */ - if (area->tag == VPD_FRU_FRAME_ID) - *frame = area->data1; - /* Slot Map Format (MF 4D46020004 ) */ - else if (area->tag == VPD_SLOT_MAP_FORMAT) - slot_map_fmt = (area->data1 * 256) - + area->data2; - /* Slot Map (SM 534D90 */ - else if (area->tag == VPD_SLOT_MAP) { - struct slot_map *slot_map; - - if (slot_map_fmt == 0x1004) - slot_map = (struct slot_map *)((char *)area - + MFG_ENTRY_SIZE + 1); - else - slot_map = (struct slot_map *)((char *)area - + MFG_ENTRY_SIZE); - iseries_parse_slot_area(slot_map, mfg_tag_len, - agent, phb, card); - } - /* - * Point to the next Mfg Area - * Use defined size, sizeof give wrong answer - */ - area = (struct mfg_vpd_area *)((char *)area + mfg_tag_len - + MFG_ENTRY_SIZE); - len -= (mfg_tag_len + MFG_ENTRY_SIZE); - } -} - -/* - * Look for "BUS".. Data is not Null terminated. - * PHBID of 0xFF indicates PHB was not found in VPD Data. - */ -static u8 __init iseries_parse_phbid(u8 *area, int len) -{ - while (len > 0) { - if ((*area == 'B') && (*(area + 1) == 'U') - && (*(area + 2) == 'S')) { - area += 3; - while (*area == ' ') - area++; - return *area & 0x0F; - } - area++; - len--; - } - return 0xff; -} - -/* - * Parse out the VPD Areas - */ -static void __init iseries_parse_vpd(u8 *data, int data_len, - HvAgentId agent, u8 *frame, char card[4]) -{ - u8 phb = 0xff; - - while (data_len > 0) { - int len; - u8 tag = *data; - - if (tag == VPD_END_OF_AREA) - break; - len = *(data + 1) + (*(data + 2) * 256); - data += 3; - data_len -= 3; - if (tag == VPD_ID_STRING) - phb = iseries_parse_phbid(data, len); - else if (tag == VPD_VENDOR_AREA) - iseries_parse_mfg_area((struct mfg_vpd_area *)data, len, - agent, &phb, frame, card); - /* Point to next Area. */ - data += len; - data_len -= len; - } -} - -static int __init iseries_get_location_code(u16 bus, HvAgentId agent, - u8 *frame, char card[4]) -{ - int status = 0; - int bus_vpd_len = 0; - u8 *bus_vpd = kmalloc(BUS_VPDSIZE, GFP_KERNEL); - - if (bus_vpd == NULL) { - printk("PCI: Bus VPD Buffer allocation failure.\n"); - return 0; - } - bus_vpd_len = HvCallPci_getBusVpd(bus, iseries_hv_addr(bus_vpd), - BUS_VPDSIZE); - if (bus_vpd_len == 0) { - printk("PCI: Bus VPD Buffer zero length.\n"); - goto out_free; - } - /* printk("PCI: bus_vpd: %p, %d\n",bus_vpd, bus_vpd_len); */ - /* Make sure this is what I think it is */ - if (*bus_vpd != VPD_ID_STRING) { - printk("PCI: Bus VPD Buffer missing starting tag.\n"); - goto out_free; - } - iseries_parse_vpd(bus_vpd, bus_vpd_len, agent, frame, card); - status = 1; -out_free: - kfree(bus_vpd); - return status; -} - -/* - * Prints the device information. - * - Pass in pci_dev* pointer to the device. - * - Pass in the device count - * - * Format: - * PCI: Bus 0, Device 26, Vendor 0x12AE Frame 1, Card C10 Ethernet - * controller - */ -static void __init iseries_device_information(struct pci_dev *pdev, - u16 bus, HvSubBusNumber subbus) -{ - u8 frame = 0; - char card[4]; - HvAgentId agent; - - agent = ISERIES_PCI_AGENTID(ISERIES_GET_DEVICE_FROM_SUBBUS(subbus), - ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus)); - - if (iseries_get_location_code(bus, agent, &frame, card)) { - printk(KERN_INFO "PCI: %s, Vendor %04X Frame%3d, " - "Card %4s 0x%04X\n", pci_name(pdev), pdev->vendor, - frame, card, (int)(pdev->class >> 8)); - } -} - -/* - * iomm_table_allocate_entry - * - * Adds pci_dev entry in address translation table - * - * - Allocates the number of entries required in table base on BAR - * size. - * - Allocates starting at BASE_IO_MEMORY and increases. - * - The size is round up to be a multiple of entry size. - * - CurrentIndex is incremented to keep track of the last entry. - * - Builds the resource entry for allocated BARs. - */ -static void __init iomm_table_allocate_entry(struct pci_dev *dev, int bar_num) -{ - struct resource *bar_res = &dev->resource[bar_num]; - long bar_size = pci_resource_len(dev, bar_num); - struct device_node *dn = pci_device_to_OF_node(dev); - - /* - * No space to allocate, quick exit, skip Allocation. - */ - if (bar_size == 0) - return; - /* - * Set Resource values. - */ - spin_lock(&iomm_table_lock); - bar_res->start = BASE_IO_MEMORY + - IOMM_TABLE_ENTRY_SIZE * current_iomm_table_entry; - bar_res->end = bar_res->start + bar_size - 1; - /* - * Allocate the number of table entries needed for BAR. - */ - while (bar_size > 0 ) { - iomm_table[current_iomm_table_entry] = dn; - ds_addr_table[current_iomm_table_entry] = - iseries_ds_addr(dn) | (bar_num << 24); - bar_size -= IOMM_TABLE_ENTRY_SIZE; - ++current_iomm_table_entry; - } - max_io_memory = BASE_IO_MEMORY + - IOMM_TABLE_ENTRY_SIZE * current_iomm_table_entry; - spin_unlock(&iomm_table_lock); -} - -/* - * allocate_device_bars - * - * - Allocates ALL pci_dev BAR's and updates the resources with the - * BAR value. BARS with zero length will have the resources - * The HvCallPci_getBarParms is used to get the size of the BAR - * space. It calls iomm_table_allocate_entry to allocate - * each entry. - * - Loops through The Bar resources(0 - 5) including the ROM - * is resource(6). - */ -static void __init allocate_device_bars(struct pci_dev *dev) -{ - int bar_num; - - for (bar_num = 0; bar_num <= PCI_ROM_RESOURCE; ++bar_num) - iomm_table_allocate_entry(dev, bar_num); -} - -/* - * Log error information to system console. - * Filter out the device not there errors. - * PCI: EADs Connect Failed 0x18.58.10 Rc: 0x00xx - * PCI: Read Vendor Failed 0x18.58.10 Rc: 0x00xx - * PCI: Connect Bus Unit Failed 0x18.58.10 Rc: 0x00xx - */ -static void pci_log_error(char *error, int bus, int subbus, - int agent, int hv_res) -{ - if (hv_res == 0x0302) - return; - printk(KERN_ERR "PCI: %s Failed: 0x%02X.%02X.%02X Rc: 0x%04X", - error, bus, subbus, agent, hv_res); -} - -/* - * Look down the chain to find the matching Device Device - */ -static struct device_node *find_device_node(int bus, int devfn) -{ - struct device_node *node; - - for (node = NULL; (node = of_find_all_nodes(node)); ) { - struct pci_dn *pdn = PCI_DN(node); - - if (pdn && (bus == pdn->busno) && (devfn == pdn->devfn)) - return node; - } - return NULL; -} - -/* - * iSeries_pcibios_fixup_resources - * - * Fixes up all resources for devices - */ -void __init iSeries_pcibios_fixup_resources(struct pci_dev *pdev) -{ - const u32 *agent; - const u32 *sub_bus; - unsigned char bus = pdev->bus->number; - struct device_node *node; - int i; - - node = pci_device_to_OF_node(pdev); - pr_debug("PCI: iSeries %s, pdev %p, node %p\n", - pci_name(pdev), pdev, node); - if (!node) { - printk("PCI: %s disabled, device tree entry not found !\n", - pci_name(pdev)); - for (i = 0; i <= PCI_ROM_RESOURCE; i++) - pdev->resource[i].flags = 0; - return; - } - sub_bus = of_get_property(node, "linux,subbus", NULL); - agent = of_get_property(node, "linux,agent-id", NULL); - if (agent && sub_bus) { - u8 irq = iSeries_allocate_IRQ(bus, 0, *sub_bus); - int err; - - err = HvCallXm_connectBusUnit(bus, *sub_bus, *agent, irq); - if (err) - pci_log_error("Connect Bus Unit", - bus, *sub_bus, *agent, err); - else { - err = HvCallPci_configStore8(bus, *sub_bus, - *agent, PCI_INTERRUPT_LINE, irq); - if (err) - pci_log_error("PciCfgStore Irq Failed!", - bus, *sub_bus, *agent, err); - else - pdev->irq = irq; - } - } - - allocate_device_bars(pdev); - if (likely(sub_bus)) - iseries_device_information(pdev, bus, *sub_bus); - else - printk(KERN_ERR "PCI: Device node %s has missing or invalid " - "linux,subbus property\n", node->full_name); -} - -/* - * iSeries_pci_final_fixup(void) - */ -void __init iSeries_pci_final_fixup(void) -{ - /* Fix up at the device node and pci_dev relationship */ - mf_display_src(0xC9000100); - iSeries_activate_IRQs(); - mf_display_src(0xC9000200); -} - -/* - * Config space read and write functions. - * For now at least, we look for the device node for the bus and devfn - * that we are asked to access. It may be possible to translate the devfn - * to a subbus and deviceid more directly. - */ -static u64 hv_cfg_read_func[4] = { - HvCallPciConfigLoad8, HvCallPciConfigLoad16, - HvCallPciConfigLoad32, HvCallPciConfigLoad32 -}; - -static u64 hv_cfg_write_func[4] = { - HvCallPciConfigStore8, HvCallPciConfigStore16, - HvCallPciConfigStore32, HvCallPciConfigStore32 -}; - -/* - * Read PCI config space - */ -static int iSeries_pci_read_config(struct pci_bus *bus, unsigned int devfn, - int offset, int size, u32 *val) -{ - struct device_node *node = find_device_node(bus->number, devfn); - u64 fn; - struct HvCallPci_LoadReturn ret; - - if (node == NULL) - return PCIBIOS_DEVICE_NOT_FOUND; - if (offset > 255) { - *val = ~0; - return PCIBIOS_BAD_REGISTER_NUMBER; - } - - fn = hv_cfg_read_func[(size - 1) & 3]; - HvCall3Ret16(fn, &ret, iseries_ds_addr(node), offset, 0); - - if (ret.rc != 0) { - *val = ~0; - return PCIBIOS_DEVICE_NOT_FOUND; /* or something */ - } - - *val = ret.value; - return 0; -} - -/* - * Write PCI config space - */ - -static int iSeries_pci_write_config(struct pci_bus *bus, unsigned int devfn, - int offset, int size, u32 val) -{ - struct device_node *node = find_device_node(bus->number, devfn); - u64 fn; - u64 ret; - - if (node == NULL) - return PCIBIOS_DEVICE_NOT_FOUND; - if (offset > 255) - return PCIBIOS_BAD_REGISTER_NUMBER; - - fn = hv_cfg_write_func[(size - 1) & 3]; - ret = HvCall4(fn, iseries_ds_addr(node), offset, val, 0); - - if (ret != 0) - return PCIBIOS_DEVICE_NOT_FOUND; - - return 0; -} - -static struct pci_ops iSeries_pci_ops = { - .read = iSeries_pci_read_config, - .write = iSeries_pci_write_config -}; - -/* - * Check Return Code - * -> On Failure, print and log information. - * Increment Retry Count, if exceeds max, panic partition. - * - * PCI: Device 23.90 ReadL I/O Error( 0): 0x1234 - * PCI: Device 23.90 ReadL Retry( 1) - * PCI: Device 23.90 ReadL Retry Successful(1) - */ -static int check_return_code(char *type, struct device_node *dn, - int *retry, u64 ret) -{ - if (ret != 0) { - struct pci_dn *pdn = PCI_DN(dn); - - (*retry)++; - printk("PCI: %s: Device 0x%04X:%02X I/O Error(%2d): 0x%04X\n", - type, pdn->busno, pdn->devfn, - *retry, (int)ret); - /* - * Bump the retry and check for retry count exceeded. - * If, Exceeded, panic the system. - */ - if (((*retry) > PCI_RETRY_MAX) && - (limit_pci_retries > 0)) { - mf_display_src(0xB6000103); - panic_timeout = 0; - panic("PCI: Hardware I/O Error, SRC B6000103, " - "Automatic Reboot Disabled.\n"); - } - return -1; /* Retry Try */ - } - return 0; -} - -/* - * Translate the I/O Address into a device node, bar, and bar offset. - * Note: Make sure the passed variable end up on the stack to avoid - * the exposure of being device global. - */ -static inline struct device_node *xlate_iomm_address( - const volatile void __iomem *addr, - u64 *dsaptr, u64 *bar_offset, const char *func) -{ - unsigned long orig_addr; - unsigned long base_addr; - unsigned long ind; - struct device_node *dn; - - orig_addr = (unsigned long __force)addr; - if ((orig_addr < BASE_IO_MEMORY) || (orig_addr >= max_io_memory)) { - static DEFINE_RATELIMIT_STATE(ratelimit, 60 * HZ, 10); - - if (__ratelimit(&ratelimit)) - printk(KERN_ERR - "iSeries_%s: invalid access at IO address %p\n", - func, addr); - return NULL; - } - base_addr = orig_addr - BASE_IO_MEMORY; - ind = base_addr / IOMM_TABLE_ENTRY_SIZE; - dn = iomm_table[ind]; - - if (dn != NULL) { - *dsaptr = ds_addr_table[ind]; - *bar_offset = base_addr % IOMM_TABLE_ENTRY_SIZE; - } else - panic("PCI: Invalid PCI IO address detected!\n"); - return dn; -} - -/* - * Read MM I/O Instructions for the iSeries - * On MM I/O error, all ones are returned and iSeries_pci_IoError is cal - * else, data is returned in Big Endian format. - */ -static u8 iseries_readb(const volatile void __iomem *addr) -{ - u64 bar_offset; - u64 dsa; - int retry = 0; - struct HvCallPci_LoadReturn ret; - struct device_node *dn = - xlate_iomm_address(addr, &dsa, &bar_offset, "read_byte"); - - if (dn == NULL) - return 0xff; - do { - HvCall3Ret16(HvCallPciBarLoad8, &ret, dsa, bar_offset, 0); - } while (check_return_code("RDB", dn, &retry, ret.rc) != 0); - - return ret.value; -} - -static u16 iseries_readw_be(const volatile void __iomem *addr) -{ - u64 bar_offset; - u64 dsa; - int retry = 0; - struct HvCallPci_LoadReturn ret; - struct device_node *dn = - xlate_iomm_address(addr, &dsa, &bar_offset, "read_word"); - - if (dn == NULL) - return 0xffff; - do { - HvCall3Ret16(HvCallPciBarLoad16, &ret, dsa, - bar_offset, 0); - } while (check_return_code("RDW", dn, &retry, ret.rc) != 0); - - return ret.value; -} - -static u32 iseries_readl_be(const volatile void __iomem *addr) -{ - u64 bar_offset; - u64 dsa; - int retry = 0; - struct HvCallPci_LoadReturn ret; - struct device_node *dn = - xlate_iomm_address(addr, &dsa, &bar_offset, "read_long"); - - if (dn == NULL) - return 0xffffffff; - do { - HvCall3Ret16(HvCallPciBarLoad32, &ret, dsa, - bar_offset, 0); - } while (check_return_code("RDL", dn, &retry, ret.rc) != 0); - - return ret.value; -} - -/* - * Write MM I/O Instructions for the iSeries - * - */ -static void iseries_writeb(u8 data, volatile void __iomem *addr) -{ - u64 bar_offset; - u64 dsa; - int retry = 0; - u64 rc; - struct device_node *dn = - xlate_iomm_address(addr, &dsa, &bar_offset, "write_byte"); - - if (dn == NULL) - return; - do { - rc = HvCall4(HvCallPciBarStore8, dsa, bar_offset, data, 0); - } while (check_return_code("WWB", dn, &retry, rc) != 0); -} - -static void iseries_writew_be(u16 data, volatile void __iomem *addr) -{ - u64 bar_offset; - u64 dsa; - int retry = 0; - u64 rc; - struct device_node *dn = - xlate_iomm_address(addr, &dsa, &bar_offset, "write_word"); - - if (dn == NULL) - return; - do { - rc = HvCall4(HvCallPciBarStore16, dsa, bar_offset, data, 0); - } while (check_return_code("WWW", dn, &retry, rc) != 0); -} - -static void iseries_writel_be(u32 data, volatile void __iomem *addr) -{ - u64 bar_offset; - u64 dsa; - int retry = 0; - u64 rc; - struct device_node *dn = - xlate_iomm_address(addr, &dsa, &bar_offset, "write_long"); - - if (dn == NULL) - return; - do { - rc = HvCall4(HvCallPciBarStore32, dsa, bar_offset, data, 0); - } while (check_return_code("WWL", dn, &retry, rc) != 0); -} - -static u16 iseries_readw(const volatile void __iomem *addr) -{ - return le16_to_cpu(iseries_readw_be(addr)); -} - -static u32 iseries_readl(const volatile void __iomem *addr) -{ - return le32_to_cpu(iseries_readl_be(addr)); -} - -static void iseries_writew(u16 data, volatile void __iomem *addr) -{ - iseries_writew_be(cpu_to_le16(data), addr); -} - -static void iseries_writel(u32 data, volatile void __iomem *addr) -{ - iseries_writel(cpu_to_le32(data), addr); -} - -static void iseries_readsb(const volatile void __iomem *addr, void *buf, - unsigned long count) -{ - u8 *dst = buf; - while(count-- > 0) - *(dst++) = iseries_readb(addr); -} - -static void iseries_readsw(const volatile void __iomem *addr, void *buf, - unsigned long count) -{ - u16 *dst = buf; - while(count-- > 0) - *(dst++) = iseries_readw_be(addr); -} - -static void iseries_readsl(const volatile void __iomem *addr, void *buf, - unsigned long count) -{ - u32 *dst = buf; - while(count-- > 0) - *(dst++) = iseries_readl_be(addr); -} - -static void iseries_writesb(volatile void __iomem *addr, const void *buf, - unsigned long count) -{ - const u8 *src = buf; - while(count-- > 0) - iseries_writeb(*(src++), addr); -} - -static void iseries_writesw(volatile void __iomem *addr, const void *buf, - unsigned long count) -{ - const u16 *src = buf; - while(count-- > 0) - iseries_writew_be(*(src++), addr); -} - -static void iseries_writesl(volatile void __iomem *addr, const void *buf, - unsigned long count) -{ - const u32 *src = buf; - while(count-- > 0) - iseries_writel_be(*(src++), addr); -} - -static void iseries_memset_io(volatile void __iomem *addr, int c, - unsigned long n) -{ - volatile char __iomem *d = addr; - - while (n-- > 0) - iseries_writeb(c, d++); -} - -static void iseries_memcpy_fromio(void *dest, const volatile void __iomem *src, - unsigned long n) -{ - char *d = dest; - const volatile char __iomem *s = src; - - while (n-- > 0) - *d++ = iseries_readb(s++); -} - -static void iseries_memcpy_toio(volatile void __iomem *dest, const void *src, - unsigned long n) -{ - const char *s = src; - volatile char __iomem *d = dest; - - while (n-- > 0) - iseries_writeb(*s++, d++); -} - -/* We only set MMIO ops. The default PIO ops will be default - * to the MMIO ops + pci_io_base which is 0 on iSeries as - * expected so both should work. - * - * Note that we don't implement the readq/writeq versions as - * I don't know of an HV call for doing so. Thus, the default - * operation will be used instead, which will fault a the value - * return by iSeries for MMIO addresses always hits a non mapped - * area. This is as good as the BUG() we used to have there. - */ -static struct ppc_pci_io __initdata iseries_pci_io = { - .readb = iseries_readb, - .readw = iseries_readw, - .readl = iseries_readl, - .readw_be = iseries_readw_be, - .readl_be = iseries_readl_be, - .writeb = iseries_writeb, - .writew = iseries_writew, - .writel = iseries_writel, - .writew_be = iseries_writew_be, - .writel_be = iseries_writel_be, - .readsb = iseries_readsb, - .readsw = iseries_readsw, - .readsl = iseries_readsl, - .writesb = iseries_writesb, - .writesw = iseries_writesw, - .writesl = iseries_writesl, - .memset_io = iseries_memset_io, - .memcpy_fromio = iseries_memcpy_fromio, - .memcpy_toio = iseries_memcpy_toio, -}; - -/* - * iSeries_pcibios_init - * - * Description: - * This function checks for all possible system PCI host bridges that connect - * PCI buses. The system hypervisor is queried as to the guest partition - * ownership status. A pci_controller is built for any bus which is partially - * owned or fully owned by this guest partition. - */ -void __init iSeries_pcibios_init(void) -{ - struct pci_controller *phb; - struct device_node *root = of_find_node_by_path("/"); - struct device_node *node = NULL; - - /* Install IO hooks */ - ppc_pci_io = iseries_pci_io; - - pci_probe_only = 1; - - /* iSeries has no IO space in the common sense, it needs to set - * the IO base to 0 - */ - pci_io_base = 0; - - if (root == NULL) { - printk(KERN_CRIT "iSeries_pcibios_init: can't find root " - "of device tree\n"); - return; - } - while ((node = of_get_next_child(root, node)) != NULL) { - HvBusNumber bus; - const u32 *busp; - - if ((node->type == NULL) || (strcmp(node->type, "pci") != 0)) - continue; - - busp = of_get_property(node, "bus-range", NULL); - if (busp == NULL) - continue; - bus = *busp; - printk("bus %d appears to exist\n", bus); - phb = pcibios_alloc_controller(node); - if (phb == NULL) - continue; - /* All legacy iSeries PHBs are in domain zero */ - phb->global_number = 0; - - phb->first_busno = bus; - phb->last_busno = bus; - phb->ops = &iSeries_pci_ops; - phb->io_base_virt = (void __iomem *)_IO_BASE; - phb->io_resource.flags = IORESOURCE_IO; - phb->io_resource.start = BASE_IO_MEMORY; - phb->io_resource.end = END_IO_MEMORY; - phb->io_resource.name = "iSeries PCI IO"; - phb->mem_resources[0].flags = IORESOURCE_MEM; - phb->mem_resources[0].start = BASE_IO_MEMORY; - phb->mem_resources[0].end = END_IO_MEMORY; - phb->mem_resources[0].name = "Series PCI MEM"; - } - - of_node_put(root); - - pci_devs_phb_init(); -} - diff --git a/arch/powerpc/platforms/iseries/pci.h b/arch/powerpc/platforms/iseries/pci.h deleted file mode 100644 index d9cf974..0000000 --- a/arch/powerpc/platforms/iseries/pci.h +++ /dev/null @@ -1,58 +0,0 @@ -#ifndef _PLATFORMS_ISERIES_PCI_H -#define _PLATFORMS_ISERIES_PCI_H - -/* - * Created by Allan Trautman on Tue Feb 20, 2001. - * - * Define some useful macros for the iSeries pci routines. - * Copyright (C) 2001 Allan H Trautman, IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the: - * Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, - * Boston, MA 02111-1307 USA - * - * Change Activity: - * Created Feb 20, 2001 - * Added device reset, March 22, 2001 - * Ported to ppc64, May 25, 2001 - * End Change Activity - */ - -/* - * Decodes Linux DevFn to iSeries DevFn, bridge device, or function. - * For Linux, see PCI_SLOT and PCI_FUNC in include/linux/pci.h - */ - -#define ISERIES_PCI_AGENTID(idsel, func) \ - (((idsel & 0x0F) << 4) | (func & 0x07)) -#define ISERIES_ENCODE_DEVICE(agentid) \ - ((0x10) | ((agentid & 0x20) >> 2) | (agentid & 0x07)) - -#define ISERIES_GET_DEVICE_FROM_SUBBUS(subbus) ((subbus >> 5) & 0x7) -#define ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus) ((subbus >> 2) & 0x7) - -struct pci_dev; - -#ifdef CONFIG_PCI -extern void iSeries_pcibios_init(void); -extern void iSeries_pci_final_fixup(void); -extern void iSeries_pcibios_fixup_resources(struct pci_dev *dev); -#else -static inline void iSeries_pcibios_init(void) { } -static inline void iSeries_pci_final_fixup(void) { } -static inline void iSeries_pcibios_fixup_resources(struct pci_dev *dev) {} -#endif - -#endif /* _PLATFORMS_ISERIES_PCI_H */ diff --git a/arch/powerpc/platforms/iseries/proc.c b/arch/powerpc/platforms/iseries/proc.c deleted file mode 100644 index 0676368..0000000 --- a/arch/powerpc/platforms/iseries/proc.c +++ /dev/null @@ -1,120 +0,0 @@ -/* - * Copyright (C) 2001 Kyle A. Lucke IBM Corporation - * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#include <linux/init.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <linux/param.h> /* for HZ */ -#include <asm/paca.h> -#include <asm/processor.h> -#include <asm/time.h> -#include <asm/lppaca.h> -#include <asm/firmware.h> -#include <asm/iseries/hv_call_xm.h> - -#include "processor_vpd.h" -#include "main_store.h" - -static int __init iseries_proc_create(void) -{ - struct proc_dir_entry *e; - - if (!firmware_has_feature(FW_FEATURE_ISERIES)) - return 0; - - e = proc_mkdir("iSeries", 0); - if (!e) - return 1; - - return 0; -} -core_initcall(iseries_proc_create); - -static unsigned long startTitan = 0; -static unsigned long startTb = 0; - -static int proc_titantod_show(struct seq_file *m, void *v) -{ - unsigned long tb0, titan_tod; - - tb0 = get_tb(); - titan_tod = HvCallXm_loadTod(); - - seq_printf(m, "Titan\n" ); - seq_printf(m, " time base = %016lx\n", tb0); - seq_printf(m, " titan tod = %016lx\n", titan_tod); - seq_printf(m, " xProcFreq = %016x\n", - xIoHriProcessorVpd[0].xProcFreq); - seq_printf(m, " xTimeBaseFreq = %016x\n", - xIoHriProcessorVpd[0].xTimeBaseFreq); - seq_printf(m, " tb_ticks_per_jiffy = %lu\n", tb_ticks_per_jiffy); - seq_printf(m, " tb_ticks_per_usec = %lu\n", tb_ticks_per_usec); - - if (!startTitan) { - startTitan = titan_tod; - startTb = tb0; - } else { - unsigned long titan_usec = (titan_tod - startTitan) >> 12; - unsigned long tb_ticks = (tb0 - startTb); - unsigned long titan_jiffies = titan_usec / (1000000/HZ); - unsigned long titan_jiff_usec = titan_jiffies * (1000000/HZ); - unsigned long titan_jiff_rem_usec = - titan_usec - titan_jiff_usec; - unsigned long tb_jiffies = tb_ticks / tb_ticks_per_jiffy; - unsigned long tb_jiff_ticks = tb_jiffies * tb_ticks_per_jiffy; - unsigned long tb_jiff_rem_ticks = tb_ticks - tb_jiff_ticks; - unsigned long tb_jiff_rem_usec = - tb_jiff_rem_ticks / tb_ticks_per_usec; - unsigned long new_tb_ticks_per_jiffy = - (tb_ticks * (1000000/HZ))/titan_usec; - - seq_printf(m, " titan elapsed = %lu uSec\n", titan_usec); - seq_printf(m, " tb elapsed = %lu ticks\n", tb_ticks); - seq_printf(m, " titan jiffies = %lu.%04lu\n", titan_jiffies, - titan_jiff_rem_usec); - seq_printf(m, " tb jiffies = %lu.%04lu\n", tb_jiffies, - tb_jiff_rem_usec); - seq_printf(m, " new tb_ticks_per_jiffy = %lu\n", - new_tb_ticks_per_jiffy); - } - - return 0; -} - -static int proc_titantod_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_titantod_show, NULL); -} - -static const struct file_operations proc_titantod_operations = { - .open = proc_titantod_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int __init iseries_proc_init(void) -{ - if (!firmware_has_feature(FW_FEATURE_ISERIES)) - return 0; - - proc_create("iSeries/titanTod", S_IFREG|S_IRUGO, NULL, - &proc_titantod_operations); - return 0; -} -__initcall(iseries_proc_init); diff --git a/arch/powerpc/platforms/iseries/processor_vpd.h b/arch/powerpc/platforms/iseries/processor_vpd.h deleted file mode 100644 index 7ac5d0d..0000000 --- a/arch/powerpc/platforms/iseries/processor_vpd.h +++ /dev/null @@ -1,85 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _ISERIES_PROCESSOR_VPD_H -#define _ISERIES_PROCESSOR_VPD_H - -#include <asm/types.h> - -/* - * This struct maps Processor Vpd that is DMAd to SLIC by CSP - */ -struct IoHriProcessorVpd { - u8 xFormat; // VPD format indicator x00-x00 - u8 xProcStatus:8; // Processor State x01-x01 - u8 xSecondaryThreadCount; // Secondary thread cnt x02-x02 - u8 xSrcType:1; // Src Type x03-x03 - u8 xSrcSoft:1; // Src stay soft ... - u8 xSrcParable:1; // Src parable ... - u8 xRsvd1:5; // Reserved ... - u16 xHvPhysicalProcIndex; // Hypervisor physical proc index04-x05 - u16 xRsvd2; // Reserved x06-x07 - u32 xHwNodeId; // Hardware node id x08-x0B - u32 xHwProcId; // Hardware processor id x0C-x0F - - u32 xTypeNum; // Card Type/CCIN number x10-x13 - u32 xModelNum; // Model/Feature number x14-x17 - u64 xSerialNum; // Serial number x18-x1F - char xPartNum[12]; // Book Part or FPU number x20-x2B - char xMfgID[4]; // Manufacturing ID x2C-x2F - - u32 xProcFreq; // Processor Frequency x30-x33 - u32 xTimeBaseFreq; // Time Base Frequency x34-x37 - - u32 xChipEcLevel; // Chip EC Levels x38-x3B - u32 xProcIdReg; // PIR SPR value x3C-x3F - u32 xPVR; // PVR value x40-x43 - u8 xRsvd3[12]; // Reserved x44-x4F - - u32 xInstCacheSize; // Instruction cache size in KB x50-x53 - u32 xInstBlockSize; // Instruction cache block size x54-x57 - u32 xDataCacheOperandSize; // Data cache operand size x58-x5B - u32 xInstCacheOperandSize; // Inst cache operand size x5C-x5F - - u32 xDataL1CacheSizeKB; // L1 data cache size in KB x60-x63 - u32 xDataL1CacheLineSize; // L1 data cache block size x64-x67 - u64 xRsvd4; // Reserved x68-x6F - - u32 xDataL2CacheSizeKB; // L2 data cache size in KB x70-x73 - u32 xDataL2CacheLineSize; // L2 data cache block size x74-x77 - u64 xRsvd5; // Reserved x78-x7F - - u32 xDataL3CacheSizeKB; // L3 data cache size in KB x80-x83 - u32 xDataL3CacheLineSize; // L3 data cache block size x84-x87 - u64 xRsvd6; // Reserved x88-x8F - - u64 xFruLabel; // Card Location Label x90-x97 - u8 xSlotsOnCard; // Slots on card (0=no slots) x98-x98 - u8 xPartLocFlag; // Location flag (0-pluggable 1-imbedded) x99-x99 - u16 xSlotMapIndex; // Index in slot map table x9A-x9B - u8 xSmartCardPortNo; // Smart card port number x9C-x9C - u8 xRsvd7; // Reserved x9D-x9D - u16 xFrameIdAndRackUnit; // Frame ID and rack unit adr x9E-x9F - - u8 xRsvd8[24]; // Reserved xA0-xB7 - - char xProcSrc[72]; // CSP format SRC xB8-xFF -}; - -extern struct IoHriProcessorVpd xIoHriProcessorVpd[]; - -#endif /* _ISERIES_PROCESSOR_VPD_H */ diff --git a/arch/powerpc/platforms/iseries/release_data.h b/arch/powerpc/platforms/iseries/release_data.h deleted file mode 100644 index 6ad7d84..0000000 --- a/arch/powerpc/platforms/iseries/release_data.h +++ /dev/null @@ -1,63 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _ISERIES_RELEASE_DATA_H -#define _ISERIES_RELEASE_DATA_H - -/* - * This control block contains the critical information about the - * release so that it can be changed in the future (ie, the virtual - * address of the OS's NACA). - */ -#include <asm/types.h> -#include "naca.h" - -/* - * When we IPL a secondary partition, we will check if if the - * secondary xMinPlicVrmIndex > the primary xVrmIndex. - * If it is then this tells PLIC that this secondary is not - * supported running on this "old" of a level of PLIC. - * - * Likewise, we will compare the primary xMinSlicVrmIndex to - * the secondary xVrmIndex. - * If the primary xMinSlicVrmDelta > secondary xVrmDelta then we - * know that this PLIC does not support running an OS "that old". - */ - -#define HVREL_TAGSINACTIVE 0x8000 -#define HVREL_32BIT 0x4000 -#define HVREL_NOSHAREDPROCS 0x2000 -#define HVREL_NOHMT 0x1000 - -struct HvReleaseData { - u32 xDesc; /* Descriptor "HvRD" ebcdic x00-x03 */ - u16 xSize; /* Size of this control block x04-x05 */ - u16 xVpdAreasPtrOffset; /* Offset in NACA of ItVpdAreas x06-x07 */ - struct naca_struct *xSlicNacaAddr; /* Virt addr of SLIC NACA x08-x0F */ - u32 xMsNucDataOffset; /* Offset of Linux Mapping Data x10-x13 */ - u32 xRsvd1; /* Reserved x14-x17 */ - u16 xFlags; - u16 xVrmIndex; /* VRM Index of OS image x1A-x1B */ - u16 xMinSupportedPlicVrmIndex; /* Min PLIC level (soft) x1C-x1D */ - u16 xMinCompatablePlicVrmIndex; /* Min PLIC levelP (hard) x1E-x1F */ - char xVrmName[12]; /* Displayable name x20-x2B */ - char xRsvd3[20]; /* Reserved x2C-x3F */ -}; - -extern const struct HvReleaseData hvReleaseData; - -#endif /* _ISERIES_RELEASE_DATA_H */ diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c deleted file mode 100644 index a5fbf4c..0000000 --- a/arch/powerpc/platforms/iseries/setup.c +++ /dev/null @@ -1,718 +0,0 @@ -/* - * Copyright (c) 2000 Mike Corrigan <mikejc@us.ibm.com> - * Copyright (c) 1999-2000 Grant Erickson <grant@lcse.umn.edu> - * - * Description: - * Architecture- / platform-specific boot-time initialization code for - * the IBM iSeries LPAR. Adapted from original code by Grant Erickson and - * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek - * <dan@net4x.com>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#undef DEBUG - -#include <linux/init.h> -#include <linux/threads.h> -#include <linux/smp.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/export.h> -#include <linux/seq_file.h> -#include <linux/kdev_t.h> -#include <linux/kexec.h> -#include <linux/major.h> -#include <linux/root_dev.h> -#include <linux/kernel.h> -#include <linux/hrtimer.h> -#include <linux/tick.h> - -#include <asm/processor.h> -#include <asm/machdep.h> -#include <asm/page.h> -#include <asm/mmu.h> -#include <asm/pgtable.h> -#include <asm/mmu_context.h> -#include <asm/cputable.h> -#include <asm/sections.h> -#include <asm/iommu.h> -#include <asm/firmware.h> -#include <asm/system.h> -#include <asm/time.h> -#include <asm/paca.h> -#include <asm/cache.h> -#include <asm/abs_addr.h> -#include <asm/iseries/hv_lp_config.h> -#include <asm/iseries/hv_call_event.h> -#include <asm/iseries/hv_call_xm.h> -#include <asm/iseries/it_lp_queue.h> -#include <asm/iseries/mf.h> -#include <asm/iseries/hv_lp_event.h> -#include <asm/iseries/lpar_map.h> -#include <asm/udbg.h> -#include <asm/irq.h> - -#include "naca.h" -#include "setup.h" -#include "irq.h" -#include "vpd_areas.h" -#include "processor_vpd.h" -#include "it_lp_naca.h" -#include "main_store.h" -#include "call_sm.h" -#include "call_hpt.h" -#include "pci.h" - -#ifdef DEBUG -#define DBG(fmt...) udbg_printf(fmt) -#else -#define DBG(fmt...) -#endif - -/* Function Prototypes */ -static unsigned long build_iSeries_Memory_Map(void); -static void iseries_shared_idle(void); -static void iseries_dedicated_idle(void); - - -struct MemoryBlock { - unsigned long absStart; - unsigned long absEnd; - unsigned long logicalStart; - unsigned long logicalEnd; -}; - -/* - * Process the main store vpd to determine where the holes in memory are - * and return the number of physical blocks and fill in the array of - * block data. - */ -static unsigned long iSeries_process_Condor_mainstore_vpd( - struct MemoryBlock *mb_array, unsigned long max_entries) -{ - unsigned long holeFirstChunk, holeSizeChunks; - unsigned long numMemoryBlocks = 1; - struct IoHriMainStoreSegment4 *msVpd = - (struct IoHriMainStoreSegment4 *)xMsVpd; - unsigned long holeStart = msVpd->nonInterleavedBlocksStartAdr; - unsigned long holeEnd = msVpd->nonInterleavedBlocksEndAdr; - unsigned long holeSize = holeEnd - holeStart; - - printk("Mainstore_VPD: Condor\n"); - /* - * Determine if absolute memory has any - * holes so that we can interpret the - * access map we get back from the hypervisor - * correctly. - */ - mb_array[0].logicalStart = 0; - mb_array[0].logicalEnd = 0x100000000UL; - mb_array[0].absStart = 0; - mb_array[0].absEnd = 0x100000000UL; - - if (holeSize) { - numMemoryBlocks = 2; - holeStart = holeStart & 0x000fffffffffffffUL; - holeStart = addr_to_chunk(holeStart); - holeFirstChunk = holeStart; - holeSize = addr_to_chunk(holeSize); - holeSizeChunks = holeSize; - printk( "Main store hole: start chunk = %0lx, size = %0lx chunks\n", - holeFirstChunk, holeSizeChunks ); - mb_array[0].logicalEnd = holeFirstChunk; - mb_array[0].absEnd = holeFirstChunk; - mb_array[1].logicalStart = holeFirstChunk; - mb_array[1].logicalEnd = 0x100000000UL - holeSizeChunks; - mb_array[1].absStart = holeFirstChunk + holeSizeChunks; - mb_array[1].absEnd = 0x100000000UL; - } - return numMemoryBlocks; -} - -#define MaxSegmentAreas 32 -#define MaxSegmentAdrRangeBlocks 128 -#define MaxAreaRangeBlocks 4 - -static unsigned long iSeries_process_Regatta_mainstore_vpd( - struct MemoryBlock *mb_array, unsigned long max_entries) -{ - struct IoHriMainStoreSegment5 *msVpdP = - (struct IoHriMainStoreSegment5 *)xMsVpd; - unsigned long numSegmentBlocks = 0; - u32 existsBits = msVpdP->msAreaExists; - unsigned long area_num; - - printk("Mainstore_VPD: Regatta\n"); - - for (area_num = 0; area_num < MaxSegmentAreas; ++area_num ) { - unsigned long numAreaBlocks; - struct IoHriMainStoreArea4 *currentArea; - - if (existsBits & 0x80000000) { - unsigned long block_num; - - currentArea = &msVpdP->msAreaArray[area_num]; - numAreaBlocks = currentArea->numAdrRangeBlocks; - printk("ms_vpd: processing area %2ld blocks=%ld", - area_num, numAreaBlocks); - for (block_num = 0; block_num < numAreaBlocks; - ++block_num ) { - /* Process an address range block */ - struct MemoryBlock tempBlock; - unsigned long i; - - tempBlock.absStart = - (unsigned long)currentArea->xAdrRangeBlock[block_num].blockStart; - tempBlock.absEnd = - (unsigned long)currentArea->xAdrRangeBlock[block_num].blockEnd; - tempBlock.logicalStart = 0; - tempBlock.logicalEnd = 0; - printk("\n block %ld absStart=%016lx absEnd=%016lx", - block_num, tempBlock.absStart, - tempBlock.absEnd); - - for (i = 0; i < numSegmentBlocks; ++i) { - if (mb_array[i].absStart == - tempBlock.absStart) - break; - } - if (i == numSegmentBlocks) { - if (numSegmentBlocks == max_entries) - panic("iSeries_process_mainstore_vpd: too many memory blocks"); - mb_array[numSegmentBlocks] = tempBlock; - ++numSegmentBlocks; - } else - printk(" (duplicate)"); - } - printk("\n"); - } - existsBits <<= 1; - } - /* Now sort the blocks found into ascending sequence */ - if (numSegmentBlocks > 1) { - unsigned long m, n; - - for (m = 0; m < numSegmentBlocks - 1; ++m) { - for (n = numSegmentBlocks - 1; m < n; --n) { - if (mb_array[n].absStart < - mb_array[n-1].absStart) { - struct MemoryBlock tempBlock; - - tempBlock = mb_array[n]; - mb_array[n] = mb_array[n-1]; - mb_array[n-1] = tempBlock; - } - } - } - } - /* - * Assign "logical" addresses to each block. These - * addresses correspond to the hypervisor "bitmap" space. - * Convert all addresses into units of 256K chunks. - */ - { - unsigned long i, nextBitmapAddress; - - printk("ms_vpd: %ld sorted memory blocks\n", numSegmentBlocks); - nextBitmapAddress = 0; - for (i = 0; i < numSegmentBlocks; ++i) { - unsigned long length = mb_array[i].absEnd - - mb_array[i].absStart; - - mb_array[i].logicalStart = nextBitmapAddress; - mb_array[i].logicalEnd = nextBitmapAddress + length; - nextBitmapAddress += length; - printk(" Bitmap range: %016lx - %016lx\n" - " Absolute range: %016lx - %016lx\n", - mb_array[i].logicalStart, - mb_array[i].logicalEnd, - mb_array[i].absStart, mb_array[i].absEnd); - mb_array[i].absStart = addr_to_chunk(mb_array[i].absStart & - 0x000fffffffffffffUL); - mb_array[i].absEnd = addr_to_chunk(mb_array[i].absEnd & - 0x000fffffffffffffUL); - mb_array[i].logicalStart = - addr_to_chunk(mb_array[i].logicalStart); - mb_array[i].logicalEnd = addr_to_chunk(mb_array[i].logicalEnd); - } - } - - return numSegmentBlocks; -} - -static unsigned long iSeries_process_mainstore_vpd(struct MemoryBlock *mb_array, - unsigned long max_entries) -{ - unsigned long i; - unsigned long mem_blocks = 0; - - if (mmu_has_feature(MMU_FTR_SLB)) - mem_blocks = iSeries_process_Regatta_mainstore_vpd(mb_array, - max_entries); - else - mem_blocks = iSeries_process_Condor_mainstore_vpd(mb_array, - max_entries); - - printk("Mainstore_VPD: numMemoryBlocks = %ld\n", mem_blocks); - for (i = 0; i < mem_blocks; ++i) { - printk("Mainstore_VPD: block %3ld logical chunks %016lx - %016lx\n" - " abs chunks %016lx - %016lx\n", - i, mb_array[i].logicalStart, mb_array[i].logicalEnd, - mb_array[i].absStart, mb_array[i].absEnd); - } - return mem_blocks; -} - -static void __init iSeries_get_cmdline(void) -{ - char *p, *q; - - /* copy the command line parameter from the primary VSP */ - HvCallEvent_dmaToSp(cmd_line, 2 * 64* 1024, 256, - HvLpDma_Direction_RemoteToLocal); - - p = cmd_line; - q = cmd_line + 255; - while(p < q) { - if (!*p || *p == '\n') - break; - ++p; - } - *p = 0; -} - -static void __init iSeries_init_early(void) -{ - DBG(" -> iSeries_init_early()\n"); - - /* Snapshot the timebase, for use in later recalibration */ - iSeries_time_init_early(); - - /* - * Initialize the DMA/TCE management - */ - iommu_init_early_iSeries(); - - /* Initialize machine-dependency vectors */ -#ifdef CONFIG_SMP - smp_init_iSeries(); -#endif - - /* Associate Lp Event Queue 0 with processor 0 */ - HvCallEvent_setLpEventQueueInterruptProc(0, 0); - - mf_init(); - - DBG(" <- iSeries_init_early()\n"); -} - -struct mschunks_map mschunks_map = { - /* XXX We don't use these, but Piranha might need them. */ - .chunk_size = MSCHUNKS_CHUNK_SIZE, - .chunk_shift = MSCHUNKS_CHUNK_SHIFT, - .chunk_mask = MSCHUNKS_OFFSET_MASK, -}; -EXPORT_SYMBOL(mschunks_map); - -static void mschunks_alloc(unsigned long num_chunks) -{ - klimit = _ALIGN(klimit, sizeof(u32)); - mschunks_map.mapping = (u32 *)klimit; - klimit += num_chunks * sizeof(u32); - mschunks_map.num_chunks = num_chunks; -} - -/* - * The iSeries may have very large memories ( > 128 GB ) and a partition - * may get memory in "chunks" that may be anywhere in the 2**52 real - * address space. The chunks are 256K in size. To map this to the - * memory model Linux expects, the AS/400 specific code builds a - * translation table to translate what Linux thinks are "physical" - * addresses to the actual real addresses. This allows us to make - * it appear to Linux that we have contiguous memory starting at - * physical address zero while in fact this could be far from the truth. - * To avoid confusion, I'll let the words physical and/or real address - * apply to the Linux addresses while I'll use "absolute address" to - * refer to the actual hardware real address. - * - * build_iSeries_Memory_Map gets information from the Hypervisor and - * looks at the Main Store VPD to determine the absolute addresses - * of the memory that has been assigned to our partition and builds - * a table used to translate Linux's physical addresses to these - * absolute addresses. Absolute addresses are needed when - * communicating with the hypervisor (e.g. to build HPT entries) - * - * Returns the physical memory size - */ - -static unsigned long __init build_iSeries_Memory_Map(void) -{ - u32 loadAreaFirstChunk, loadAreaLastChunk, loadAreaSize; - u32 nextPhysChunk; - u32 hptFirstChunk, hptLastChunk, hptSizeChunks, hptSizePages; - u32 totalChunks,moreChunks; - u32 currChunk, thisChunk, absChunk; - u32 currDword; - u32 chunkBit; - u64 map; - struct MemoryBlock mb[32]; - unsigned long numMemoryBlocks, curBlock; - - /* Chunk size on iSeries is 256K bytes */ - totalChunks = (u32)HvLpConfig_getMsChunks(); - mschunks_alloc(totalChunks); - - /* - * Get absolute address of our load area - * and map it to physical address 0 - * This guarantees that the loadarea ends up at physical 0 - * otherwise, it might not be returned by PLIC as the first - * chunks - */ - - loadAreaFirstChunk = (u32)addr_to_chunk(itLpNaca.xLoadAreaAddr); - loadAreaSize = itLpNaca.xLoadAreaChunks; - - /* - * Only add the pages already mapped here. - * Otherwise we might add the hpt pages - * The rest of the pages of the load area - * aren't in the HPT yet and can still - * be assigned an arbitrary physical address - */ - if ((loadAreaSize * 64) > HvPagesToMap) - loadAreaSize = HvPagesToMap / 64; - - loadAreaLastChunk = loadAreaFirstChunk + loadAreaSize - 1; - - /* - * TODO Do we need to do something if the HPT is in the 64MB load area? - * This would be required if the itLpNaca.xLoadAreaChunks includes - * the HPT size - */ - - printk("Mapping load area - physical addr = 0000000000000000\n" - " absolute addr = %016lx\n", - chunk_to_addr(loadAreaFirstChunk)); - printk("Load area size %dK\n", loadAreaSize * 256); - - for (nextPhysChunk = 0; nextPhysChunk < loadAreaSize; ++nextPhysChunk) - mschunks_map.mapping[nextPhysChunk] = - loadAreaFirstChunk + nextPhysChunk; - - /* - * Get absolute address of our HPT and remember it so - * we won't map it to any physical address - */ - hptFirstChunk = (u32)addr_to_chunk(HvCallHpt_getHptAddress()); - hptSizePages = (u32)HvCallHpt_getHptPages(); - hptSizeChunks = hptSizePages >> - (MSCHUNKS_CHUNK_SHIFT - HW_PAGE_SHIFT); - hptLastChunk = hptFirstChunk + hptSizeChunks - 1; - - printk("HPT absolute addr = %016lx, size = %dK\n", - chunk_to_addr(hptFirstChunk), hptSizeChunks * 256); - - /* - * Determine if absolute memory has any - * holes so that we can interpret the - * access map we get back from the hypervisor - * correctly. - */ - numMemoryBlocks = iSeries_process_mainstore_vpd(mb, 32); - - /* - * Process the main store access map from the hypervisor - * to build up our physical -> absolute translation table - */ - curBlock = 0; - currChunk = 0; - currDword = 0; - moreChunks = totalChunks; - - while (moreChunks) { - map = HvCallSm_get64BitsOfAccessMap(itLpNaca.xLpIndex, - currDword); - thisChunk = currChunk; - while (map) { - chunkBit = map >> 63; - map <<= 1; - if (chunkBit) { - --moreChunks; - while (thisChunk >= mb[curBlock].logicalEnd) { - ++curBlock; - if (curBlock >= numMemoryBlocks) - panic("out of memory blocks"); - } - if (thisChunk < mb[curBlock].logicalStart) - panic("memory block error"); - - absChunk = mb[curBlock].absStart + - (thisChunk - mb[curBlock].logicalStart); - if (((absChunk < hptFirstChunk) || - (absChunk > hptLastChunk)) && - ((absChunk < loadAreaFirstChunk) || - (absChunk > loadAreaLastChunk))) { - mschunks_map.mapping[nextPhysChunk] = - absChunk; - ++nextPhysChunk; - } - } - ++thisChunk; - } - ++currDword; - currChunk += 64; - } - - /* - * main store size (in chunks) is - * totalChunks - hptSizeChunks - * which should be equal to - * nextPhysChunk - */ - return chunk_to_addr(nextPhysChunk); -} - -/* - * Document me. - */ -static void __init iSeries_setup_arch(void) -{ - if (get_lppaca()->shared_proc) { - ppc_md.idle_loop = iseries_shared_idle; - printk(KERN_DEBUG "Using shared processor idle loop\n"); - } else { - ppc_md.idle_loop = iseries_dedicated_idle; - printk(KERN_DEBUG "Using dedicated idle loop\n"); - } - - /* Setup the Lp Event Queue */ - setup_hvlpevent_queue(); - - printk("Max logical processors = %d\n", - itVpdAreas.xSlicMaxLogicalProcs); - printk("Max physical processors = %d\n", - itVpdAreas.xSlicMaxPhysicalProcs); - - iSeries_pcibios_init(); -} - -static void iSeries_show_cpuinfo(struct seq_file *m) -{ - seq_printf(m, "machine\t\t: 64-bit iSeries Logical Partition\n"); -} - -static void __init iSeries_progress(char * st, unsigned short code) -{ - printk("Progress: [%04x] - %s\n", (unsigned)code, st); - mf_display_progress(code); -} - -static void __init iSeries_fixup_klimit(void) -{ - /* - * Change klimit to take into account any ram disk - * that may be included - */ - if (naca.xRamDisk) - klimit = KERNELBASE + (u64)naca.xRamDisk + - (naca.xRamDiskSize * HW_PAGE_SIZE); -} - -static int __init iSeries_src_init(void) -{ - /* clear the progress line */ - if (firmware_has_feature(FW_FEATURE_ISERIES)) - ppc_md.progress(" ", 0xffff); - return 0; -} - -late_initcall(iSeries_src_init); - -static inline void process_iSeries_events(void) -{ - asm volatile ("li 0,0x5555; sc" : : : "r0", "r3"); -} - -static void yield_shared_processor(void) -{ - unsigned long tb; - - HvCall_setEnabledInterrupts(HvCall_MaskIPI | - HvCall_MaskLpEvent | - HvCall_MaskLpProd | - HvCall_MaskTimeout); - - tb = get_tb(); - /* Compute future tb value when yield should expire */ - HvCall_yieldProcessor(HvCall_YieldTimed, tb+tb_ticks_per_jiffy); - - /* - * The decrementer stops during the yield. Force a fake decrementer - * here and let the timer_interrupt code sort out the actual time. - */ - get_lppaca()->int_dword.fields.decr_int = 1; - ppc64_runlatch_on(); - process_iSeries_events(); -} - -static void iseries_shared_idle(void) -{ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (!need_resched() && !hvlpevent_is_pending()) { - local_irq_disable(); - ppc64_runlatch_off(); - - /* Recheck with irqs off */ - if (!need_resched() && !hvlpevent_is_pending()) - yield_shared_processor(); - - HMT_medium(); - local_irq_enable(); - } - - ppc64_runlatch_on(); - rcu_idle_exit(); - tick_nohz_idle_exit(); - - if (hvlpevent_is_pending()) - process_iSeries_events(); - - schedule_preempt_disabled(); - } -} - -static void iseries_dedicated_idle(void) -{ - set_thread_flag(TIF_POLLING_NRFLAG); - - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - if (!need_resched()) { - while (!need_resched()) { - ppc64_runlatch_off(); - HMT_low(); - - if (hvlpevent_is_pending()) { - HMT_medium(); - ppc64_runlatch_on(); - process_iSeries_events(); - } - } - - HMT_medium(); - } - - ppc64_runlatch_on(); - rcu_idle_exit(); - tick_nohz_idle_exit(); - schedule_preempt_disabled(); - } -} - -static void __iomem *iseries_ioremap(phys_addr_t address, unsigned long size, - unsigned long flags, void *caller) -{ - return (void __iomem *)address; -} - -static void iseries_iounmap(volatile void __iomem *token) -{ -} - -static int __init iseries_probe(void) -{ - unsigned long root = of_get_flat_dt_root(); - if (!of_flat_dt_is_compatible(root, "IBM,iSeries")) - return 0; - - hpte_init_iSeries(); - /* iSeries does not support 16M pages */ - cur_cpu_spec->mmu_features &= ~MMU_FTR_16M_PAGE; - - return 1; -} - -#ifdef CONFIG_KEXEC -static int iseries_kexec_prepare(struct kimage *image) -{ - return -ENOSYS; -} -#endif - -define_machine(iseries) { - .name = "iSeries", - .setup_arch = iSeries_setup_arch, - .show_cpuinfo = iSeries_show_cpuinfo, - .init_IRQ = iSeries_init_IRQ, - .get_irq = iSeries_get_irq, - .init_early = iSeries_init_early, - .pcibios_fixup = iSeries_pci_final_fixup, - .pcibios_fixup_resources= iSeries_pcibios_fixup_resources, - .restart = mf_reboot, - .power_off = mf_power_off, - .halt = mf_power_off, - .get_boot_time = iSeries_get_boot_time, - .set_rtc_time = iSeries_set_rtc_time, - .get_rtc_time = iSeries_get_rtc_time, - .calibrate_decr = generic_calibrate_decr, - .progress = iSeries_progress, - .probe = iseries_probe, - .ioremap = iseries_ioremap, - .iounmap = iseries_iounmap, -#ifdef CONFIG_KEXEC - .machine_kexec_prepare = iseries_kexec_prepare, -#endif - /* XXX Implement enable_pmcs for iSeries */ -}; - -void * __init iSeries_early_setup(void) -{ - unsigned long phys_mem_size; - - /* Identify CPU type. This is done again by the common code later - * on but calling this function multiple times is fine. - */ - identify_cpu(0, mfspr(SPRN_PVR)); - initialise_paca(&boot_paca, 0); - - powerpc_firmware_features |= FW_FEATURE_ISERIES; - powerpc_firmware_features |= FW_FEATURE_LPAR; - -#ifdef CONFIG_SMP - /* On iSeries we know we can never have more than 64 cpus */ - nr_cpu_ids = max(nr_cpu_ids, 64); -#endif - - iSeries_fixup_klimit(); - - /* - * Initialize the table which translate Linux physical addresses to - * AS/400 absolute addresses - */ - phys_mem_size = build_iSeries_Memory_Map(); - - iSeries_get_cmdline(); - - return (void *) __pa(build_flat_dt(phys_mem_size)); -} - -static void hvputc(char c) -{ - if (c == '\n') - hvputc('\r'); - - HvCall_writeLogBuffer(&c, 1); -} - -void __init udbg_init_iseries(void) -{ - udbg_putc = hvputc; -} diff --git a/arch/powerpc/platforms/iseries/setup.h b/arch/powerpc/platforms/iseries/setup.h deleted file mode 100644 index 729754b..0000000 --- a/arch/powerpc/platforms/iseries/setup.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * Copyright (c) 2000 Mike Corrigan <mikejc@us.ibm.com> - * Copyright (c) 1999-2000 Grant Erickson <grant@lcse.umn.edu> - * - * Description: - * Architecture- / platform-specific boot-time initialization code for - * the IBM AS/400 LPAR. Adapted from original code by Grant Erickson and - * code by Gary Thomas, Cort Dougan <cort@cs.nmt.edu>, and Dan Malek - * <dan@netx4.com>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef __ISERIES_SETUP_H__ -#define __ISERIES_SETUP_H__ - -extern void *iSeries_early_setup(void); -extern unsigned long iSeries_get_boot_time(void); -extern int iSeries_set_rtc_time(struct rtc_time *tm); -extern void iSeries_get_rtc_time(struct rtc_time *tm); - -extern void *build_flat_dt(unsigned long phys_mem_size); - -#endif /* __ISERIES_SETUP_H__ */ diff --git a/arch/powerpc/platforms/iseries/smp.c b/arch/powerpc/platforms/iseries/smp.c deleted file mode 100644 index 02df49f..0000000 --- a/arch/powerpc/platforms/iseries/smp.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * SMP support for iSeries machines. - * - * Dave Engebretsen, Peter Bergner, and - * Mike Corrigan {engebret|bergner|mikec}@us.ibm.com - * - * Plus various changes from other IBM teams... - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/cache.h> -#include <linux/err.h> -#include <linux/device.h> -#include <linux/cpu.h> - -#include <asm/ptrace.h> -#include <linux/atomic.h> -#include <asm/irq.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/io.h> -#include <asm/smp.h> -#include <asm/paca.h> -#include <asm/iseries/hv_call.h> -#include <asm/time.h> -#include <asm/machdep.h> -#include <asm/cputable.h> -#include <asm/system.h> - -static void smp_iSeries_cause_ipi(int cpu, unsigned long data) -{ - HvCall_sendIPI(&(paca[cpu])); -} - -static int smp_iSeries_probe(void) -{ - return cpumask_weight(cpu_possible_mask); -} - -static int smp_iSeries_kick_cpu(int nr) -{ - BUG_ON((nr < 0) || (nr >= NR_CPUS)); - - /* Verify that our partition has a processor nr */ - if (lppaca_of(nr).dyn_proc_status >= 2) - return -ENOENT; - - /* The processor is currently spinning, waiting - * for the cpu_start field to become non-zero - * After we set cpu_start, the processor will - * continue on to secondary_start in iSeries_head.S - */ - paca[nr].cpu_start = 1; - - return 0; -} - -static void __devinit smp_iSeries_setup_cpu(int nr) -{ -} - -static struct smp_ops_t iSeries_smp_ops = { - .message_pass = NULL, /* Use smp_muxed_ipi_message_pass */ - .cause_ipi = smp_iSeries_cause_ipi, - .probe = smp_iSeries_probe, - .kick_cpu = smp_iSeries_kick_cpu, - .setup_cpu = smp_iSeries_setup_cpu, -}; - -/* This is called very early. */ -void __init smp_init_iSeries(void) -{ - smp_ops = &iSeries_smp_ops; -} diff --git a/arch/powerpc/platforms/iseries/spcomm_area.h b/arch/powerpc/platforms/iseries/spcomm_area.h deleted file mode 100644 index 598b7c1..0000000 --- a/arch/powerpc/platforms/iseries/spcomm_area.h +++ /dev/null @@ -1,34 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _ISERIES_SPCOMM_AREA_H -#define _ISERIES_SPCOMM_AREA_H - - -struct SpCommArea { - u32 xDesc; // Descriptor (only in new formats) 000-003 - u8 xFormat; // Format (only in new formats) 004-004 - u8 xRsvd1[11]; // Reserved 005-00F - u64 xRawTbAtIplStart; // Raw HW TB value when IPL is started 010-017 - u64 xRawTodAtIplStart; // Raw HW TOD value when IPL is started 018-01F - u64 xBcdTimeAtIplStart; // BCD time when IPL is started 020-027 - u64 xBcdTimeAtOsStart; // BCD time when OS passed control 028-02F - u8 xRsvd2[80]; // Reserved 030-07F -}; - -#endif /* _ISERIES_SPCOMM_AREA_H */ diff --git a/arch/powerpc/platforms/iseries/vio.c b/arch/powerpc/platforms/iseries/vio.c deleted file mode 100644 index 04be62d..0000000 --- a/arch/powerpc/platforms/iseries/vio.c +++ /dev/null @@ -1,556 +0,0 @@ -/* - * Legacy iSeries specific vio initialisation - * that needs to be built in (not a module). - * - * © Copyright 2007 IBM Corporation - * Author: Stephen Rothwell - * Some parts collected from various other files - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#include <linux/of.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/completion.h> -#include <linux/proc_fs.h> -#include <linux/export.h> - -#include <asm/firmware.h> -#include <asm/vio.h> -#include <asm/iseries/vio.h> -#include <asm/iseries/iommu.h> -#include <asm/iseries/hv_types.h> -#include <asm/iseries/hv_lp_event.h> - -#define FIRST_VTY 0 -#define NUM_VTYS 1 -#define FIRST_VSCSI (FIRST_VTY + NUM_VTYS) -#define NUM_VSCSIS 1 -#define FIRST_VLAN (FIRST_VSCSI + NUM_VSCSIS) -#define NUM_VLANS HVMAXARCHITECTEDVIRTUALLANS -#define FIRST_VIODASD (FIRST_VLAN + NUM_VLANS) -#define NUM_VIODASDS HVMAXARCHITECTEDVIRTUALDISKS -#define FIRST_VIOCD (FIRST_VIODASD + NUM_VIODASDS) -#define NUM_VIOCDS HVMAXARCHITECTEDVIRTUALCDROMS -#define FIRST_VIOTAPE (FIRST_VIOCD + NUM_VIOCDS) -#define NUM_VIOTAPES HVMAXARCHITECTEDVIRTUALTAPES - -struct vio_waitevent { - struct completion com; - int rc; - u16 sub_result; -}; - -struct vio_resource { - char rsrcname[10]; - char type[4]; - char model[3]; -}; - -static struct property *new_property(const char *name, int length, - const void *value) -{ - struct property *np = kzalloc(sizeof(*np) + strlen(name) + 1 + length, - GFP_KERNEL); - - if (!np) - return NULL; - np->name = (char *)(np + 1); - np->value = np->name + strlen(name) + 1; - strcpy(np->name, name); - memcpy(np->value, value, length); - np->length = length; - return np; -} - -static void free_property(struct property *np) -{ - kfree(np); -} - -static struct device_node *new_node(const char *path, - struct device_node *parent) -{ - struct device_node *np = kzalloc(sizeof(*np), GFP_KERNEL); - - if (!np) - return NULL; - np->full_name = kstrdup(path, GFP_KERNEL); - if (!np->full_name) { - kfree(np); - return NULL; - } - of_node_set_flag(np, OF_DYNAMIC); - kref_init(&np->kref); - np->parent = of_node_get(parent); - return np; -} - -static void free_node(struct device_node *np) -{ - struct property *next; - struct property *prop; - - next = np->properties; - while (next) { - prop = next; - next = prop->next; - free_property(prop); - } - of_node_put(np->parent); - kfree(np->full_name); - kfree(np); -} - -static int add_string_property(struct device_node *np, const char *name, - const char *value) -{ - struct property *nprop = new_property(name, strlen(value) + 1, value); - - if (!nprop) - return 0; - prom_add_property(np, nprop); - return 1; -} - -static int add_raw_property(struct device_node *np, const char *name, - int length, const void *value) -{ - struct property *nprop = new_property(name, length, value); - - if (!nprop) - return 0; - prom_add_property(np, nprop); - return 1; -} - -static struct device_node *do_device_node(struct device_node *parent, - const char *name, u32 reg, u32 unit, const char *type, - const char *compat, struct vio_resource *res) -{ - struct device_node *np; - char path[32]; - - snprintf(path, sizeof(path), "/vdevice/%s@%08x", name, reg); - np = new_node(path, parent); - if (!np) - return NULL; - if (!add_string_property(np, "name", name) || - !add_string_property(np, "device_type", type) || - !add_string_property(np, "compatible", compat) || - !add_raw_property(np, "reg", sizeof(reg), ®) || - !add_raw_property(np, "linux,unit_address", - sizeof(unit), &unit)) { - goto node_free; - } - if (res) { - if (!add_raw_property(np, "linux,vio_rsrcname", - sizeof(res->rsrcname), res->rsrcname) || - !add_raw_property(np, "linux,vio_type", - sizeof(res->type), res->type) || - !add_raw_property(np, "linux,vio_model", - sizeof(res->model), res->model)) - goto node_free; - } - np->name = of_get_property(np, "name", NULL); - np->type = of_get_property(np, "device_type", NULL); - of_attach_node(np); -#ifdef CONFIG_PROC_DEVICETREE - if (parent->pde) { - struct proc_dir_entry *ent; - - ent = proc_mkdir(strrchr(np->full_name, '/') + 1, parent->pde); - if (ent) - proc_device_tree_add_node(np, ent); - } -#endif - return np; - - node_free: - free_node(np); - return NULL; -} - -/* - * This is here so that we can dynamically add viodasd - * devices without exposing all the above infrastructure. - */ -struct vio_dev *vio_create_viodasd(u32 unit) -{ - struct device_node *vio_root; - struct device_node *np; - struct vio_dev *vdev = NULL; - - vio_root = of_find_node_by_path("/vdevice"); - if (!vio_root) - return NULL; - np = do_device_node(vio_root, "viodasd", FIRST_VIODASD + unit, unit, - "block", "IBM,iSeries-viodasd", NULL); - of_node_put(vio_root); - if (np) { - vdev = vio_register_device_node(np); - if (!vdev) - free_node(np); - } - return vdev; -} -EXPORT_SYMBOL_GPL(vio_create_viodasd); - -static void __init handle_block_event(struct HvLpEvent *event) -{ - struct vioblocklpevent *bevent = (struct vioblocklpevent *)event; - struct vio_waitevent *pwe; - - if (event == NULL) - /* Notification that a partition went away! */ - return; - /* First, we should NEVER get an int here...only acks */ - if (hvlpevent_is_int(event)) { - printk(KERN_WARNING "handle_viod_request: " - "Yikes! got an int in viodasd event handler!\n"); - if (hvlpevent_need_ack(event)) { - event->xRc = HvLpEvent_Rc_InvalidSubtype; - HvCallEvent_ackLpEvent(event); - } - return; - } - - switch (event->xSubtype & VIOMINOR_SUBTYPE_MASK) { - case vioblockopen: - /* - * Handle a response to an open request. We get all the - * disk information in the response, so update it. The - * correlation token contains a pointer to a waitevent - * structure that has a completion in it. update the - * return code in the waitevent structure and post the - * completion to wake up the guy who sent the request - */ - pwe = (struct vio_waitevent *)event->xCorrelationToken; - pwe->rc = event->xRc; - pwe->sub_result = bevent->sub_result; - complete(&pwe->com); - break; - case vioblockclose: - break; - default: - printk(KERN_WARNING "handle_viod_request: unexpected subtype!"); - if (hvlpevent_need_ack(event)) { - event->xRc = HvLpEvent_Rc_InvalidSubtype; - HvCallEvent_ackLpEvent(event); - } - } -} - -static void __init probe_disk(struct device_node *vio_root, u32 unit) -{ - HvLpEvent_Rc hvrc; - struct vio_waitevent we; - u16 flags = 0; - -retry: - init_completion(&we.com); - - /* Send the open event to OS/400 */ - hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp, - HvLpEvent_Type_VirtualIo, - viomajorsubtype_blockio | vioblockopen, - HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck, - viopath_sourceinst(viopath_hostLp), - viopath_targetinst(viopath_hostLp), - (u64)(unsigned long)&we, VIOVERSION << 16, - ((u64)unit << 48) | ((u64)flags<< 32), - 0, 0, 0); - if (hvrc != 0) { - printk(KERN_WARNING "probe_disk: bad rc on HV open %d\n", - (int)hvrc); - return; - } - - wait_for_completion(&we.com); - - if (we.rc != 0) { - if (flags != 0) - return; - /* try again with read only flag set */ - flags = vioblockflags_ro; - goto retry; - } - - /* Send the close event to OS/400. We DON'T expect a response */ - hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp, - HvLpEvent_Type_VirtualIo, - viomajorsubtype_blockio | vioblockclose, - HvLpEvent_AckInd_NoAck, HvLpEvent_AckType_ImmediateAck, - viopath_sourceinst(viopath_hostLp), - viopath_targetinst(viopath_hostLp), - 0, VIOVERSION << 16, - ((u64)unit << 48) | ((u64)flags << 32), - 0, 0, 0); - if (hvrc != 0) { - printk(KERN_WARNING "probe_disk: " - "bad rc sending event to OS/400 %d\n", (int)hvrc); - return; - } - - do_device_node(vio_root, "viodasd", FIRST_VIODASD + unit, unit, - "block", "IBM,iSeries-viodasd", NULL); -} - -static void __init get_viodasd_info(struct device_node *vio_root) -{ - int rc; - u32 unit; - - rc = viopath_open(viopath_hostLp, viomajorsubtype_blockio, 2); - if (rc) { - printk(KERN_WARNING "get_viodasd_info: " - "error opening path to host partition %d\n", - viopath_hostLp); - return; - } - - /* Initialize our request handler */ - vio_setHandler(viomajorsubtype_blockio, handle_block_event); - - for (unit = 0; unit < HVMAXARCHITECTEDVIRTUALDISKS; unit++) - probe_disk(vio_root, unit); - - vio_clearHandler(viomajorsubtype_blockio); - viopath_close(viopath_hostLp, viomajorsubtype_blockio, 2); -} - -static void __init handle_cd_event(struct HvLpEvent *event) -{ - struct viocdlpevent *bevent; - struct vio_waitevent *pwe; - - if (!event) - /* Notification that a partition went away! */ - return; - - /* First, we should NEVER get an int here...only acks */ - if (hvlpevent_is_int(event)) { - printk(KERN_WARNING "handle_cd_event: got an unexpected int\n"); - if (hvlpevent_need_ack(event)) { - event->xRc = HvLpEvent_Rc_InvalidSubtype; - HvCallEvent_ackLpEvent(event); - } - return; - } - - bevent = (struct viocdlpevent *)event; - - switch (event->xSubtype & VIOMINOR_SUBTYPE_MASK) { - case viocdgetinfo: - pwe = (struct vio_waitevent *)event->xCorrelationToken; - pwe->rc = event->xRc; - pwe->sub_result = bevent->sub_result; - complete(&pwe->com); - break; - - default: - printk(KERN_WARNING "handle_cd_event: " - "message with unexpected subtype %0x04X!\n", - event->xSubtype & VIOMINOR_SUBTYPE_MASK); - if (hvlpevent_need_ack(event)) { - event->xRc = HvLpEvent_Rc_InvalidSubtype; - HvCallEvent_ackLpEvent(event); - } - } -} - -static void __init get_viocd_info(struct device_node *vio_root) -{ - HvLpEvent_Rc hvrc; - u32 unit; - struct vio_waitevent we; - struct vio_resource *unitinfo; - dma_addr_t unitinfo_dmaaddr; - int ret; - - ret = viopath_open(viopath_hostLp, viomajorsubtype_cdio, 2); - if (ret) { - printk(KERN_WARNING - "get_viocd_info: error opening path to host partition %d\n", - viopath_hostLp); - return; - } - - /* Initialize our request handler */ - vio_setHandler(viomajorsubtype_cdio, handle_cd_event); - - unitinfo = iseries_hv_alloc( - sizeof(*unitinfo) * HVMAXARCHITECTEDVIRTUALCDROMS, - &unitinfo_dmaaddr, GFP_ATOMIC); - if (!unitinfo) { - printk(KERN_WARNING - "get_viocd_info: error allocating unitinfo\n"); - goto clear_handler; - } - - memset(unitinfo, 0, sizeof(*unitinfo) * HVMAXARCHITECTEDVIRTUALCDROMS); - - init_completion(&we.com); - - hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp, - HvLpEvent_Type_VirtualIo, - viomajorsubtype_cdio | viocdgetinfo, - HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck, - viopath_sourceinst(viopath_hostLp), - viopath_targetinst(viopath_hostLp), - (u64)&we, VIOVERSION << 16, unitinfo_dmaaddr, 0, - sizeof(*unitinfo) * HVMAXARCHITECTEDVIRTUALCDROMS, 0); - if (hvrc != HvLpEvent_Rc_Good) { - printk(KERN_WARNING - "get_viocd_info: cdrom error sending event. rc %d\n", - (int)hvrc); - goto hv_free; - } - - wait_for_completion(&we.com); - - if (we.rc) { - printk(KERN_WARNING "get_viocd_info: bad rc %d:0x%04X\n", - we.rc, we.sub_result); - goto hv_free; - } - - for (unit = 0; (unit < HVMAXARCHITECTEDVIRTUALCDROMS) && - unitinfo[unit].rsrcname[0]; unit++) { - if (!do_device_node(vio_root, "viocd", FIRST_VIOCD + unit, unit, - "block", "IBM,iSeries-viocd", &unitinfo[unit])) - break; - } - - hv_free: - iseries_hv_free(sizeof(*unitinfo) * HVMAXARCHITECTEDVIRTUALCDROMS, - unitinfo, unitinfo_dmaaddr); - clear_handler: - vio_clearHandler(viomajorsubtype_cdio); - viopath_close(viopath_hostLp, viomajorsubtype_cdio, 2); -} - -/* Handle interrupt events for tape */ -static void __init handle_tape_event(struct HvLpEvent *event) -{ - struct vio_waitevent *we; - struct viotapelpevent *tevent = (struct viotapelpevent *)event; - - if (event == NULL) - /* Notification that a partition went away! */ - return; - - we = (struct vio_waitevent *)event->xCorrelationToken; - switch (event->xSubtype & VIOMINOR_SUBTYPE_MASK) { - case viotapegetinfo: - we->rc = tevent->sub_type_result; - complete(&we->com); - break; - default: - printk(KERN_WARNING "handle_tape_event: weird ack\n"); - } -} - -static void __init get_viotape_info(struct device_node *vio_root) -{ - HvLpEvent_Rc hvrc; - u32 unit; - struct vio_resource *unitinfo; - dma_addr_t unitinfo_dmaaddr; - size_t len = sizeof(*unitinfo) * HVMAXARCHITECTEDVIRTUALTAPES; - struct vio_waitevent we; - int ret; - - init_completion(&we.com); - - ret = viopath_open(viopath_hostLp, viomajorsubtype_tape, 2); - if (ret) { - printk(KERN_WARNING "get_viotape_info: " - "error on viopath_open to hostlp %d\n", ret); - return; - } - - vio_setHandler(viomajorsubtype_tape, handle_tape_event); - - unitinfo = iseries_hv_alloc(len, &unitinfo_dmaaddr, GFP_ATOMIC); - if (!unitinfo) - goto clear_handler; - - memset(unitinfo, 0, len); - - hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp, - HvLpEvent_Type_VirtualIo, - viomajorsubtype_tape | viotapegetinfo, - HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck, - viopath_sourceinst(viopath_hostLp), - viopath_targetinst(viopath_hostLp), - (u64)(unsigned long)&we, VIOVERSION << 16, - unitinfo_dmaaddr, len, 0, 0); - if (hvrc != HvLpEvent_Rc_Good) { - printk(KERN_WARNING "get_viotape_info: hv error on op %d\n", - (int)hvrc); - goto hv_free; - } - - wait_for_completion(&we.com); - - for (unit = 0; (unit < HVMAXARCHITECTEDVIRTUALTAPES) && - unitinfo[unit].rsrcname[0]; unit++) { - if (!do_device_node(vio_root, "viotape", FIRST_VIOTAPE + unit, - unit, "byte", "IBM,iSeries-viotape", - &unitinfo[unit])) - break; - } - - hv_free: - iseries_hv_free(len, unitinfo, unitinfo_dmaaddr); - clear_handler: - vio_clearHandler(viomajorsubtype_tape); - viopath_close(viopath_hostLp, viomajorsubtype_tape, 2); -} - -static int __init iseries_vio_init(void) -{ - struct device_node *vio_root; - int ret = -ENODEV; - - if (!firmware_has_feature(FW_FEATURE_ISERIES)) - goto out; - - iommu_vio_init(); - - vio_root = of_find_node_by_path("/vdevice"); - if (!vio_root) - goto out; - - if (viopath_hostLp == HvLpIndexInvalid) { - vio_set_hostlp(); - /* If we don't have a host, bail out */ - if (viopath_hostLp == HvLpIndexInvalid) - goto put_node; - } - - get_viodasd_info(vio_root); - get_viocd_info(vio_root); - get_viotape_info(vio_root); - - ret = 0; - - put_node: - of_node_put(vio_root); - out: - return ret; -} -arch_initcall(iseries_vio_init); diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c deleted file mode 100644 index 40dad08..0000000 --- a/arch/powerpc/platforms/iseries/viopath.c +++ /dev/null @@ -1,677 +0,0 @@ -/* -*- linux-c -*- - * - * iSeries Virtual I/O Message Path code - * - * Authors: Dave Boutcher <boutcher@us.ibm.com> - * Ryan Arnold <ryanarn@us.ibm.com> - * Colin Devilbiss <devilbis@us.ibm.com> - * - * (C) Copyright 2000-2005 IBM Corporation - * - * This code is used by the iSeries virtual disk, cd, - * tape, and console to communicate with OS/400 in another - * partition. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) anyu later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ -#include <linux/export.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/errno.h> -#include <linux/vmalloc.h> -#include <linux/string.h> -#include <linux/proc_fs.h> -#include <linux/dma-mapping.h> -#include <linux/wait.h> -#include <linux/seq_file.h> -#include <linux/interrupt.h> -#include <linux/completion.h> - -#include <asm/system.h> -#include <asm/uaccess.h> -#include <asm/prom.h> -#include <asm/firmware.h> -#include <asm/iseries/hv_types.h> -#include <asm/iseries/hv_lp_event.h> -#include <asm/iseries/hv_lp_config.h> -#include <asm/iseries/mf.h> -#include <asm/iseries/vio.h> - -/* Status of the path to each other partition in the system. - * This is overkill, since we will only ever establish connections - * to our hosting partition and the primary partition on the system. - * But this allows for other support in the future. - */ -static struct viopathStatus { - int isOpen; /* Did we open the path? */ - int isActive; /* Do we have a mon msg outstanding */ - int users[VIO_MAX_SUBTYPES]; - HvLpInstanceId mSourceInst; - HvLpInstanceId mTargetInst; - int numberAllocated; -} viopathStatus[HVMAXARCHITECTEDLPS]; - -static DEFINE_SPINLOCK(statuslock); - -/* - * For each kind of event we allocate a buffer that is - * guaranteed not to cross a page boundary - */ -static unsigned char event_buffer[VIO_MAX_SUBTYPES * 256] - __attribute__((__aligned__(4096))); -static atomic_t event_buffer_available[VIO_MAX_SUBTYPES]; -static int event_buffer_initialised; - -static void handleMonitorEvent(struct HvLpEvent *event); - -/* - * We use this structure to handle asynchronous responses. The caller - * blocks on the semaphore and the handler posts the semaphore. However, - * if system_state is not SYSTEM_RUNNING, then wait_atomic is used ... - */ -struct alloc_parms { - struct completion done; - int number; - atomic_t wait_atomic; - int used_wait_atomic; -}; - -/* Put a sequence number in each mon msg. The value is not - * important. Start at something other than 0 just for - * readability. wrapping this is ok. - */ -static u8 viomonseq = 22; - -/* Our hosting logical partition. We get this at startup - * time, and different modules access this variable directly. - */ -HvLpIndex viopath_hostLp = HvLpIndexInvalid; -EXPORT_SYMBOL(viopath_hostLp); -HvLpIndex viopath_ourLp = HvLpIndexInvalid; -EXPORT_SYMBOL(viopath_ourLp); - -/* For each kind of incoming event we set a pointer to a - * routine to call. - */ -static vio_event_handler_t *vio_handler[VIO_MAX_SUBTYPES]; - -#define VIOPATH_KERN_WARN KERN_WARNING "viopath: " -#define VIOPATH_KERN_INFO KERN_INFO "viopath: " - -static int proc_viopath_show(struct seq_file *m, void *v) -{ - char *buf; - u16 vlanMap; - dma_addr_t handle; - HvLpEvent_Rc hvrc; - DECLARE_COMPLETION_ONSTACK(done); - struct device_node *node; - const char *sysid; - - buf = kzalloc(HW_PAGE_SIZE, GFP_KERNEL); - if (!buf) - return 0; - - handle = iseries_hv_map(buf, HW_PAGE_SIZE, DMA_FROM_DEVICE); - - hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp, - HvLpEvent_Type_VirtualIo, - viomajorsubtype_config | vioconfigget, - HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck, - viopath_sourceinst(viopath_hostLp), - viopath_targetinst(viopath_hostLp), - (u64)(unsigned long)&done, VIOVERSION << 16, - ((u64)handle) << 32, HW_PAGE_SIZE, 0, 0); - - if (hvrc != HvLpEvent_Rc_Good) - printk(VIOPATH_KERN_WARN "hv error on op %d\n", (int)hvrc); - - wait_for_completion(&done); - - vlanMap = HvLpConfig_getVirtualLanIndexMap(); - - buf[HW_PAGE_SIZE-1] = '\0'; - seq_printf(m, "%s", buf); - - iseries_hv_unmap(handle, HW_PAGE_SIZE, DMA_FROM_DEVICE); - kfree(buf); - - seq_printf(m, "AVAILABLE_VETH=%x\n", vlanMap); - - node = of_find_node_by_path("/"); - sysid = NULL; - if (node != NULL) - sysid = of_get_property(node, "system-id", NULL); - - if (sysid == NULL) - seq_printf(m, "SRLNBR=<UNKNOWN>\n"); - else - /* Skip "IBM," on front of serial number, see dt.c */ - seq_printf(m, "SRLNBR=%s\n", sysid + 4); - - of_node_put(node); - - return 0; -} - -static int proc_viopath_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_viopath_show, NULL); -} - -static const struct file_operations proc_viopath_operations = { - .open = proc_viopath_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int __init vio_proc_init(void) -{ - if (!firmware_has_feature(FW_FEATURE_ISERIES)) - return 0; - - proc_create("iSeries/config", 0, NULL, &proc_viopath_operations); - return 0; -} -__initcall(vio_proc_init); - -/* See if a given LP is active. Allow for invalid lps to be passed in - * and just return invalid - */ -int viopath_isactive(HvLpIndex lp) -{ - if (lp == HvLpIndexInvalid) - return 0; - if (lp < HVMAXARCHITECTEDLPS) - return viopathStatus[lp].isActive; - else - return 0; -} -EXPORT_SYMBOL(viopath_isactive); - -/* - * We cache the source and target instance ids for each - * partition. - */ -HvLpInstanceId viopath_sourceinst(HvLpIndex lp) -{ - return viopathStatus[lp].mSourceInst; -} -EXPORT_SYMBOL(viopath_sourceinst); - -HvLpInstanceId viopath_targetinst(HvLpIndex lp) -{ - return viopathStatus[lp].mTargetInst; -} -EXPORT_SYMBOL(viopath_targetinst); - -/* - * Send a monitor message. This is a message with the acknowledge - * bit on that the other side will NOT explicitly acknowledge. When - * the other side goes down, the hypervisor will acknowledge any - * outstanding messages....so we will know when the other side dies. - */ -static void sendMonMsg(HvLpIndex remoteLp) -{ - HvLpEvent_Rc hvrc; - - viopathStatus[remoteLp].mSourceInst = - HvCallEvent_getSourceLpInstanceId(remoteLp, - HvLpEvent_Type_VirtualIo); - viopathStatus[remoteLp].mTargetInst = - HvCallEvent_getTargetLpInstanceId(remoteLp, - HvLpEvent_Type_VirtualIo); - - /* - * Deliberately ignore the return code here. if we call this - * more than once, we don't care. - */ - vio_setHandler(viomajorsubtype_monitor, handleMonitorEvent); - - hvrc = HvCallEvent_signalLpEventFast(remoteLp, HvLpEvent_Type_VirtualIo, - viomajorsubtype_monitor, HvLpEvent_AckInd_DoAck, - HvLpEvent_AckType_DeferredAck, - viopathStatus[remoteLp].mSourceInst, - viopathStatus[remoteLp].mTargetInst, - viomonseq++, 0, 0, 0, 0, 0); - - if (hvrc == HvLpEvent_Rc_Good) - viopathStatus[remoteLp].isActive = 1; - else { - printk(VIOPATH_KERN_WARN "could not connect to partition %d\n", - remoteLp); - viopathStatus[remoteLp].isActive = 0; - } -} - -static void handleMonitorEvent(struct HvLpEvent *event) -{ - HvLpIndex remoteLp; - int i; - - /* - * This handler is _also_ called as part of the loop - * at the end of this routine, so it must be able to - * ignore NULL events... - */ - if (!event) - return; - - /* - * First see if this is just a normal monitor message from the - * other partition - */ - if (hvlpevent_is_int(event)) { - remoteLp = event->xSourceLp; - if (!viopathStatus[remoteLp].isActive) - sendMonMsg(remoteLp); - return; - } - - /* - * This path is for an acknowledgement; the other partition - * died - */ - remoteLp = event->xTargetLp; - if ((event->xSourceInstanceId != viopathStatus[remoteLp].mSourceInst) || - (event->xTargetInstanceId != viopathStatus[remoteLp].mTargetInst)) { - printk(VIOPATH_KERN_WARN "ignoring ack....mismatched instances\n"); - return; - } - - printk(VIOPATH_KERN_WARN "partition %d ended\n", remoteLp); - - viopathStatus[remoteLp].isActive = 0; - - /* - * For each active handler, pass them a NULL - * message to indicate that the other partition - * died - */ - for (i = 0; i < VIO_MAX_SUBTYPES; i++) { - if (vio_handler[i] != NULL) - (*vio_handler[i])(NULL); - } -} - -int vio_setHandler(int subtype, vio_event_handler_t *beh) -{ - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) - return -EINVAL; - if (vio_handler[subtype] != NULL) - return -EBUSY; - vio_handler[subtype] = beh; - return 0; -} -EXPORT_SYMBOL(vio_setHandler); - -int vio_clearHandler(int subtype) -{ - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) - return -EINVAL; - if (vio_handler[subtype] == NULL) - return -EAGAIN; - vio_handler[subtype] = NULL; - return 0; -} -EXPORT_SYMBOL(vio_clearHandler); - -static void handleConfig(struct HvLpEvent *event) -{ - if (!event) - return; - if (hvlpevent_is_int(event)) { - printk(VIOPATH_KERN_WARN - "unexpected config request from partition %d", - event->xSourceLp); - - if (hvlpevent_need_ack(event)) { - event->xRc = HvLpEvent_Rc_InvalidSubtype; - HvCallEvent_ackLpEvent(event); - } - return; - } - - complete((struct completion *)event->xCorrelationToken); -} - -/* - * Initialization of the hosting partition - */ -void vio_set_hostlp(void) -{ - /* - * If this has already been set then we DON'T want to either change - * it or re-register the proc file system - */ - if (viopath_hostLp != HvLpIndexInvalid) - return; - - /* - * Figure out our hosting partition. This isn't allowed to change - * while we're active - */ - viopath_ourLp = HvLpConfig_getLpIndex(); - viopath_hostLp = HvLpConfig_getHostingLpIndex(viopath_ourLp); - - if (viopath_hostLp != HvLpIndexInvalid) - vio_setHandler(viomajorsubtype_config, handleConfig); -} -EXPORT_SYMBOL(vio_set_hostlp); - -static void vio_handleEvent(struct HvLpEvent *event) -{ - HvLpIndex remoteLp; - int subtype = (event->xSubtype & VIOMAJOR_SUBTYPE_MASK) - >> VIOMAJOR_SUBTYPE_SHIFT; - - if (hvlpevent_is_int(event)) { - remoteLp = event->xSourceLp; - /* - * The isActive is checked because if the hosting partition - * went down and came back up it would not be active but it - * would have different source and target instances, in which - * case we'd want to reset them. This case really protects - * against an unauthorized active partition sending interrupts - * or acks to this linux partition. - */ - if (viopathStatus[remoteLp].isActive - && (event->xSourceInstanceId != - viopathStatus[remoteLp].mTargetInst)) { - printk(VIOPATH_KERN_WARN - "message from invalid partition. " - "int msg rcvd, source inst (%d) doesn't match (%d)\n", - viopathStatus[remoteLp].mTargetInst, - event->xSourceInstanceId); - return; - } - - if (viopathStatus[remoteLp].isActive - && (event->xTargetInstanceId != - viopathStatus[remoteLp].mSourceInst)) { - printk(VIOPATH_KERN_WARN - "message from invalid partition. " - "int msg rcvd, target inst (%d) doesn't match (%d)\n", - viopathStatus[remoteLp].mSourceInst, - event->xTargetInstanceId); - return; - } - } else { - remoteLp = event->xTargetLp; - if (event->xSourceInstanceId != - viopathStatus[remoteLp].mSourceInst) { - printk(VIOPATH_KERN_WARN - "message from invalid partition. " - "ack msg rcvd, source inst (%d) doesn't match (%d)\n", - viopathStatus[remoteLp].mSourceInst, - event->xSourceInstanceId); - return; - } - - if (event->xTargetInstanceId != - viopathStatus[remoteLp].mTargetInst) { - printk(VIOPATH_KERN_WARN - "message from invalid partition. " - "viopath: ack msg rcvd, target inst (%d) doesn't match (%d)\n", - viopathStatus[remoteLp].mTargetInst, - event->xTargetInstanceId); - return; - } - } - - if (vio_handler[subtype] == NULL) { - printk(VIOPATH_KERN_WARN - "unexpected virtual io event subtype %d from partition %d\n", - event->xSubtype, remoteLp); - /* No handler. Ack if necessary */ - if (hvlpevent_is_int(event) && hvlpevent_need_ack(event)) { - event->xRc = HvLpEvent_Rc_InvalidSubtype; - HvCallEvent_ackLpEvent(event); - } - return; - } - - /* This innocuous little line is where all the real work happens */ - (*vio_handler[subtype])(event); -} - -static void viopath_donealloc(void *parm, int number) -{ - struct alloc_parms *parmsp = parm; - - parmsp->number = number; - if (parmsp->used_wait_atomic) - atomic_set(&parmsp->wait_atomic, 0); - else - complete(&parmsp->done); -} - -static int allocateEvents(HvLpIndex remoteLp, int numEvents) -{ - struct alloc_parms parms; - - if (system_state != SYSTEM_RUNNING) { - parms.used_wait_atomic = 1; - atomic_set(&parms.wait_atomic, 1); - } else { - parms.used_wait_atomic = 0; - init_completion(&parms.done); - } - mf_allocate_lp_events(remoteLp, HvLpEvent_Type_VirtualIo, 250, /* It would be nice to put a real number here! */ - numEvents, &viopath_donealloc, &parms); - if (system_state != SYSTEM_RUNNING) { - while (atomic_read(&parms.wait_atomic)) - mb(); - } else - wait_for_completion(&parms.done); - return parms.number; -} - -int viopath_open(HvLpIndex remoteLp, int subtype, int numReq) -{ - int i; - unsigned long flags; - int tempNumAllocated; - - if ((remoteLp >= HVMAXARCHITECTEDLPS) || (remoteLp == HvLpIndexInvalid)) - return -EINVAL; - - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) - return -EINVAL; - - spin_lock_irqsave(&statuslock, flags); - - if (!event_buffer_initialised) { - for (i = 0; i < VIO_MAX_SUBTYPES; i++) - atomic_set(&event_buffer_available[i], 1); - event_buffer_initialised = 1; - } - - viopathStatus[remoteLp].users[subtype]++; - - if (!viopathStatus[remoteLp].isOpen) { - viopathStatus[remoteLp].isOpen = 1; - HvCallEvent_openLpEventPath(remoteLp, HvLpEvent_Type_VirtualIo); - - /* - * Don't hold the spinlock during an operation that - * can sleep. - */ - spin_unlock_irqrestore(&statuslock, flags); - tempNumAllocated = allocateEvents(remoteLp, 1); - spin_lock_irqsave(&statuslock, flags); - - viopathStatus[remoteLp].numberAllocated += tempNumAllocated; - - if (viopathStatus[remoteLp].numberAllocated == 0) { - HvCallEvent_closeLpEventPath(remoteLp, - HvLpEvent_Type_VirtualIo); - - spin_unlock_irqrestore(&statuslock, flags); - return -ENOMEM; - } - - viopathStatus[remoteLp].mSourceInst = - HvCallEvent_getSourceLpInstanceId(remoteLp, - HvLpEvent_Type_VirtualIo); - viopathStatus[remoteLp].mTargetInst = - HvCallEvent_getTargetLpInstanceId(remoteLp, - HvLpEvent_Type_VirtualIo); - HvLpEvent_registerHandler(HvLpEvent_Type_VirtualIo, - &vio_handleEvent); - sendMonMsg(remoteLp); - printk(VIOPATH_KERN_INFO "opening connection to partition %d, " - "setting sinst %d, tinst %d\n", - remoteLp, viopathStatus[remoteLp].mSourceInst, - viopathStatus[remoteLp].mTargetInst); - } - - spin_unlock_irqrestore(&statuslock, flags); - tempNumAllocated = allocateEvents(remoteLp, numReq); - spin_lock_irqsave(&statuslock, flags); - viopathStatus[remoteLp].numberAllocated += tempNumAllocated; - spin_unlock_irqrestore(&statuslock, flags); - - return 0; -} -EXPORT_SYMBOL(viopath_open); - -int viopath_close(HvLpIndex remoteLp, int subtype, int numReq) -{ - unsigned long flags; - int i; - int numOpen; - struct alloc_parms parms; - - if ((remoteLp >= HVMAXARCHITECTEDLPS) || (remoteLp == HvLpIndexInvalid)) - return -EINVAL; - - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) - return -EINVAL; - - spin_lock_irqsave(&statuslock, flags); - /* - * If the viopath_close somehow gets called before a - * viopath_open it could decrement to -1 which is a non - * recoverable state so we'll prevent this from - * happening. - */ - if (viopathStatus[remoteLp].users[subtype] > 0) - viopathStatus[remoteLp].users[subtype]--; - - spin_unlock_irqrestore(&statuslock, flags); - - parms.used_wait_atomic = 0; - init_completion(&parms.done); - mf_deallocate_lp_events(remoteLp, HvLpEvent_Type_VirtualIo, - numReq, &viopath_donealloc, &parms); - wait_for_completion(&parms.done); - - spin_lock_irqsave(&statuslock, flags); - for (i = 0, numOpen = 0; i < VIO_MAX_SUBTYPES; i++) - numOpen += viopathStatus[remoteLp].users[i]; - - if ((viopathStatus[remoteLp].isOpen) && (numOpen == 0)) { - printk(VIOPATH_KERN_INFO "closing connection to partition %d\n", - remoteLp); - - HvCallEvent_closeLpEventPath(remoteLp, - HvLpEvent_Type_VirtualIo); - viopathStatus[remoteLp].isOpen = 0; - viopathStatus[remoteLp].isActive = 0; - - for (i = 0; i < VIO_MAX_SUBTYPES; i++) - atomic_set(&event_buffer_available[i], 0); - event_buffer_initialised = 0; - } - spin_unlock_irqrestore(&statuslock, flags); - return 0; -} -EXPORT_SYMBOL(viopath_close); - -void *vio_get_event_buffer(int subtype) -{ - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) - return NULL; - - if (atomic_dec_if_positive(&event_buffer_available[subtype]) == 0) - return &event_buffer[subtype * 256]; - else - return NULL; -} -EXPORT_SYMBOL(vio_get_event_buffer); - -void vio_free_event_buffer(int subtype, void *buffer) -{ - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) { - printk(VIOPATH_KERN_WARN - "unexpected subtype %d freeing event buffer\n", subtype); - return; - } - - if (atomic_read(&event_buffer_available[subtype]) != 0) { - printk(VIOPATH_KERN_WARN - "freeing unallocated event buffer, subtype %d\n", - subtype); - return; - } - - if (buffer != &event_buffer[subtype * 256]) { - printk(VIOPATH_KERN_WARN - "freeing invalid event buffer, subtype %d\n", subtype); - } - - atomic_set(&event_buffer_available[subtype], 1); -} -EXPORT_SYMBOL(vio_free_event_buffer); - -static const struct vio_error_entry vio_no_error = - { 0, 0, "Non-VIO Error" }; -static const struct vio_error_entry vio_unknown_error = - { 0, EIO, "Unknown Error" }; - -static const struct vio_error_entry vio_default_errors[] = { - {0x0001, EIO, "No Connection"}, - {0x0002, EIO, "No Receiver"}, - {0x0003, EIO, "No Buffer Available"}, - {0x0004, EBADRQC, "Invalid Message Type"}, - {0x0000, 0, NULL}, -}; - -const struct vio_error_entry *vio_lookup_rc( - const struct vio_error_entry *local_table, u16 rc) -{ - const struct vio_error_entry *cur; - - if (!rc) - return &vio_no_error; - if (local_table) - for (cur = local_table; cur->rc; ++cur) - if (cur->rc == rc) - return cur; - for (cur = vio_default_errors; cur->rc; ++cur) - if (cur->rc == rc) - return cur; - return &vio_unknown_error; -} -EXPORT_SYMBOL(vio_lookup_rc); diff --git a/arch/powerpc/platforms/iseries/vpd_areas.h b/arch/powerpc/platforms/iseries/vpd_areas.h deleted file mode 100644 index feb001f..0000000 --- a/arch/powerpc/platforms/iseries/vpd_areas.h +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _ISERIES_VPD_AREAS_H -#define _ISERIES_VPD_AREAS_H - -/* - * This file defines the address and length of all of the VPD area passed to - * the OS from PLIC (most of which start from the SP). - */ - -#include <asm/types.h> - -/* VPD Entry index is carved in stone - cannot be changed (easily). */ -#define ItVpdCecVpd 0 -#define ItVpdDynamicSpace 1 -#define ItVpdExtVpd 2 -#define ItVpdExtVpdOnPanel 3 -#define ItVpdFirstPaca 4 -#define ItVpdIoVpd 5 -#define ItVpdIplParms 6 -#define ItVpdMsVpd 7 -#define ItVpdPanelVpd 8 -#define ItVpdLpNaca 9 -#define ItVpdBackplaneAndMaybeClockCardVpd 10 -#define ItVpdRecoveryLogBuffer 11 -#define ItVpdSpCommArea 12 -#define ItVpdSpLogBuffer 13 -#define ItVpdSpLogBufferSave 14 -#define ItVpdSpCardVpd 15 -#define ItVpdFirstProcVpd 16 -#define ItVpdApModelVpd 17 -#define ItVpdClockCardVpd 18 -#define ItVpdBusExtCardVpd 19 -#define ItVpdProcCapacityVpd 20 -#define ItVpdInteractiveCapacityVpd 21 -#define ItVpdFirstSlotLabel 22 -#define ItVpdFirstLpQueue 23 -#define ItVpdFirstL3CacheVpd 24 -#define ItVpdFirstProcFruVpd 25 - -#define ItVpdMaxEntries 26 - -#define ItDmaMaxEntries 10 - -#define ItVpdAreasMaxSlotLabels 192 - - -struct ItVpdAreas { - u32 xSlicDesc; // Descriptor 000-003 - u16 xSlicSize; // Size of this control block 004-005 - u16 xPlicAdjustVpdLens:1; // Flag to indicate new interface006-007 - u16 xRsvd1:15; // Reserved bits ... - u16 xSlicVpdEntries; // Number of VPD entries 008-009 - u16 xSlicDmaEntries; // Number of DMA entries 00A-00B - u16 xSlicMaxLogicalProcs; // Maximum logical processors 00C-00D - u16 xSlicMaxPhysicalProcs; // Maximum physical processors 00E-00F - u16 xSlicDmaToksOffset; // Offset into this of array 010-011 - u16 xSlicVpdAdrsOffset; // Offset into this of array 012-013 - u16 xSlicDmaLensOffset; // Offset into this of array 014-015 - u16 xSlicVpdLensOffset; // Offset into this of array 016-017 - u16 xSlicMaxSlotLabels; // Maximum number of slot labels018-019 - u16 xSlicMaxLpQueues; // Maximum number of LP Queues 01A-01B - u8 xRsvd2[4]; // Reserved 01C-01F - u64 xRsvd3[12]; // Reserved 020-07F - u32 xPlicDmaLens[ItDmaMaxEntries];// Array of DMA lengths 080-0A7 - u32 xPlicDmaToks[ItDmaMaxEntries];// Array of DMA tokens 0A8-0CF - u32 xSlicVpdLens[ItVpdMaxEntries];// Array of VPD lengths 0D0-12F - const void *xSlicVpdAdrs[ItVpdMaxEntries];// Array of VPD buffers 130-1EF -}; - -extern const struct ItVpdAreas itVpdAreas; - -#endif /* _ISERIES_VPD_AREAS_H */ diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index 0bcbfe7..3b7545a 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -262,7 +262,7 @@ static void __init maple_init_IRQ(void) flags |= MPIC_BIG_ENDIAN; /* XXX Maple specific bits */ - flags |= MPIC_U3_HT_IRQS | MPIC_WANTS_RESET; + flags |= MPIC_U3_HT_IRQS; /* All U3/U4 are big-endian, older SLOF firmware doesn't encode this */ flags |= MPIC_BIG_ENDIAN; diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c index 98b7a7c..e777ad4 100644 --- a/arch/powerpc/platforms/pasemi/setup.c +++ b/arch/powerpc/platforms/pasemi/setup.c @@ -224,7 +224,7 @@ static __init void pas_init_IRQ(void) openpic_addr = of_read_number(opprop, naddr); printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr); - mpic_flags = MPIC_LARGE_VECTORS | MPIC_NO_BIAS; + mpic_flags = MPIC_LARGE_VECTORS | MPIC_NO_BIAS | MPIC_NO_RESET; nmiprop = of_get_property(mpic_node, "nmi-source", NULL); if (nmiprop) diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c index 54d2271..da18b26 100644 --- a/arch/powerpc/platforms/powermac/nvram.c +++ b/arch/powerpc/platforms/powermac/nvram.c @@ -279,7 +279,7 @@ static u32 core99_check(u8* datas) static int sm_erase_bank(int bank) { - int stat, i; + int stat; unsigned long timeout; u8 __iomem *base = (u8 __iomem *)nvram_data + core99_bank*NVRAM_SIZE; @@ -301,11 +301,10 @@ static int sm_erase_bank(int bank) out_8(base, SM_FLASH_CMD_CLEAR_STATUS); out_8(base, SM_FLASH_CMD_RESET); - for (i=0; i<NVRAM_SIZE; i++) - if (base[i] != 0xff) { - printk(KERN_ERR "nvram: Sharp/Micron flash erase failed !\n"); - return -ENXIO; - } + if (memchr_inv(base, 0xff, NVRAM_SIZE)) { + printk(KERN_ERR "nvram: Sharp/Micron flash erase failed !\n"); + return -ENXIO; + } return 0; } @@ -336,17 +335,16 @@ static int sm_write_bank(int bank, u8* datas) } out_8(base, SM_FLASH_CMD_CLEAR_STATUS); out_8(base, SM_FLASH_CMD_RESET); - for (i=0; i<NVRAM_SIZE; i++) - if (base[i] != datas[i]) { - printk(KERN_ERR "nvram: Sharp/Micron flash write failed !\n"); - return -ENXIO; - } + if (memcmp(base, datas, NVRAM_SIZE)) { + printk(KERN_ERR "nvram: Sharp/Micron flash write failed !\n"); + return -ENXIO; + } return 0; } static int amd_erase_bank(int bank) { - int i, stat = 0; + int stat = 0; unsigned long timeout; u8 __iomem *base = (u8 __iomem *)nvram_data + core99_bank*NVRAM_SIZE; @@ -382,12 +380,11 @@ static int amd_erase_bank(int bank) /* Reset */ out_8(base, 0xf0); udelay(1); - - for (i=0; i<NVRAM_SIZE; i++) - if (base[i] != 0xff) { - printk(KERN_ERR "nvram: AMD flash erase failed !\n"); - return -ENXIO; - } + + if (memchr_inv(base, 0xff, NVRAM_SIZE)) { + printk(KERN_ERR "nvram: AMD flash erase failed !\n"); + return -ENXIO; + } return 0; } @@ -429,11 +426,10 @@ static int amd_write_bank(int bank, u8* datas) out_8(base, 0xf0); udelay(1); - for (i=0; i<NVRAM_SIZE; i++) - if (base[i] != datas[i]) { - printk(KERN_ERR "nvram: AMD flash write failed !\n"); - return -ENXIO; - } + if (memcmp(base, datas, NVRAM_SIZE)) { + printk(KERN_ERR "nvram: AMD flash write failed !\n"); + return -ENXIO; + } return 0; } diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index 92afc38..66ad93d 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -457,7 +457,6 @@ static struct mpic * __init pmac_setup_one_mpic(struct device_node *np, pmac_call_feature(PMAC_FTR_ENABLE_MPIC, np, 0, 0); - flags |= MPIC_WANTS_RESET; if (of_get_property(np, "big-endian", NULL)) flags |= MPIC_BIG_ENDIAN; diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c index f92b9ef..214478d 100644 --- a/arch/powerpc/platforms/powernv/pci.c +++ b/arch/powerpc/platforms/powernv/pci.c @@ -31,6 +31,7 @@ #include <asm/iommu.h> #include <asm/tce.h> #include <asm/abs_addr.h> +#include <asm/firmware.h> #include "powernv.h" #include "pci.h" diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 467bd4a..db1ad1c 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -31,7 +31,6 @@ #include <asm/xics.h> #include <asm/rtas.h> #include <asm/opal.h> -#include <asm/xics.h> #include "powernv.h" diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index f255625..aadbe4f 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -73,7 +73,7 @@ config IO_EVENT_IRQ config LPARCFG bool "LPAR Configuration Data" - depends on PPC_PSERIES || PPC_ISERIES + depends on PPC_PSERIES help Provide system capacity information via human readable <key word>=<value> pairs through a /proc/ppc64/lparcfg interface. diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile index 236db46..c222189 100644 --- a/arch/powerpc/platforms/pseries/Makefile +++ b/arch/powerpc/platforms/pseries/Makefile @@ -6,7 +6,8 @@ obj-y := lpar.o hvCall.o nvram.o reconfig.o \ firmware.o power.o dlpar.o mobility.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_SCANLOG) += scanlog.o -obj-$(CONFIG_EEH) += eeh.o eeh_cache.o eeh_driver.o eeh_event.o eeh_sysfs.o +obj-$(CONFIG_EEH) += eeh.o eeh_dev.o eeh_cache.o eeh_driver.o \ + eeh_event.o eeh_sysfs.o eeh_pseries.o obj-$(CONFIG_KEXEC) += kexec.o obj-$(CONFIG_PCI) += pci.o pci_dlpar.o obj-$(CONFIG_PSERIES_MSI) += msi.o @@ -18,7 +19,6 @@ obj-$(CONFIG_MEMORY_HOTPLUG) += hotplug-memory.o obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o obj-$(CONFIG_HVCS) += hvcserver.o obj-$(CONFIG_HCALL_STATS) += hvCall_inst.o -obj-$(CONFIG_PHYP_DUMP) += phyp_dump.o obj-$(CONFIG_CMM) += cmm.o obj-$(CONFIG_DTL) += dtl.o obj-$(CONFIG_IO_EVENT_IRQ) += io_event_irq.o diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index c0b40af..8011088 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -1,8 +1,8 @@ /* - * eeh.c * Copyright IBM Corporation 2001, 2005, 2006 * Copyright Dave Engebretsen & Todd Inglett 2001 * Copyright Linas Vepstas 2005, 2006 + * Copyright 2001-2012 IBM Corporation. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -22,7 +22,7 @@ */ #include <linux/delay.h> -#include <linux/sched.h> /* for init_mm */ +#include <linux/sched.h> #include <linux/init.h> #include <linux/list.h> #include <linux/pci.h> @@ -86,16 +86,8 @@ /* Time to wait for a PCI slot to report status, in milliseconds */ #define PCI_BUS_RESET_WAIT_MSEC (60*1000) -/* RTAS tokens */ -static int ibm_set_eeh_option; -static int ibm_set_slot_reset; -static int ibm_read_slot_reset_state; -static int ibm_read_slot_reset_state2; -static int ibm_slot_error_detail; -static int ibm_get_config_addr_info; -static int ibm_get_config_addr_info2; -static int ibm_configure_bridge; -static int ibm_configure_pe; +/* Platform dependent EEH operations */ +struct eeh_ops *eeh_ops = NULL; int eeh_subsystem_enabled; EXPORT_SYMBOL(eeh_subsystem_enabled); @@ -103,14 +95,6 @@ EXPORT_SYMBOL(eeh_subsystem_enabled); /* Lock to avoid races due to multiple reports of an error */ static DEFINE_RAW_SPINLOCK(confirm_error_lock); -/* Buffer for reporting slot-error-detail rtas calls. Its here - * in BSS, and not dynamically alloced, so that it ends up in - * RMO where RTAS can access it. - */ -static unsigned char slot_errbuf[RTAS_ERROR_LOG_MAX]; -static DEFINE_SPINLOCK(slot_errbuf_lock); -static int eeh_error_buf_size; - /* Buffer for reporting pci register dumps. Its here in BSS, and * not dynamically alloced, so that it ends up in RMO where RTAS * can access it. @@ -118,74 +102,50 @@ static int eeh_error_buf_size; #define EEH_PCI_REGS_LOG_LEN 4096 static unsigned char pci_regs_buf[EEH_PCI_REGS_LOG_LEN]; -/* System monitoring statistics */ -static unsigned long no_device; -static unsigned long no_dn; -static unsigned long no_cfg_addr; -static unsigned long ignored_check; -static unsigned long total_mmio_ffs; -static unsigned long false_positives; -static unsigned long slot_resets; - -#define IS_BRIDGE(class_code) (((class_code)<<16) == PCI_BASE_CLASS_BRIDGE) - -/* --------------------------------------------------------------- */ -/* Below lies the EEH event infrastructure */ +/* + * The struct is used to maintain the EEH global statistic + * information. Besides, the EEH global statistics will be + * exported to user space through procfs + */ +struct eeh_stats { + u64 no_device; /* PCI device not found */ + u64 no_dn; /* OF node not found */ + u64 no_cfg_addr; /* Config address not found */ + u64 ignored_check; /* EEH check skipped */ + u64 total_mmio_ffs; /* Total EEH checks */ + u64 false_positives; /* Unnecessary EEH checks */ + u64 slot_resets; /* PE reset */ +}; -static void rtas_slot_error_detail(struct pci_dn *pdn, int severity, - char *driver_log, size_t loglen) -{ - int config_addr; - unsigned long flags; - int rc; +static struct eeh_stats eeh_stats; - /* Log the error with the rtas logger */ - spin_lock_irqsave(&slot_errbuf_lock, flags); - memset(slot_errbuf, 0, eeh_error_buf_size); - - /* Use PE configuration address, if present */ - config_addr = pdn->eeh_config_addr; - if (pdn->eeh_pe_config_addr) - config_addr = pdn->eeh_pe_config_addr; - - rc = rtas_call(ibm_slot_error_detail, - 8, 1, NULL, config_addr, - BUID_HI(pdn->phb->buid), - BUID_LO(pdn->phb->buid), - virt_to_phys(driver_log), loglen, - virt_to_phys(slot_errbuf), - eeh_error_buf_size, - severity); - - if (rc == 0) - log_error(slot_errbuf, ERR_TYPE_RTAS_LOG, 0); - spin_unlock_irqrestore(&slot_errbuf_lock, flags); -} +#define IS_BRIDGE(class_code) (((class_code)<<16) == PCI_BASE_CLASS_BRIDGE) /** - * gather_pci_data - copy assorted PCI config space registers to buff - * @pdn: device to report data for + * eeh_gather_pci_data - Copy assorted PCI config space registers to buff + * @edev: device to report data for * @buf: point to buffer in which to log * @len: amount of room in buffer * * This routine captures assorted PCI configuration space data, * and puts them into a buffer for RTAS error logging. */ -static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) +static size_t eeh_gather_pci_data(struct eeh_dev *edev, char * buf, size_t len) { - struct pci_dev *dev = pdn->pcidev; + struct device_node *dn = eeh_dev_to_of_node(edev); + struct pci_dev *dev = eeh_dev_to_pci_dev(edev); u32 cfg; int cap, i; int n = 0; - n += scnprintf(buf+n, len-n, "%s\n", pdn->node->full_name); - printk(KERN_WARNING "EEH: of node=%s\n", pdn->node->full_name); + n += scnprintf(buf+n, len-n, "%s\n", dn->full_name); + printk(KERN_WARNING "EEH: of node=%s\n", dn->full_name); - rtas_read_config(pdn, PCI_VENDOR_ID, 4, &cfg); + eeh_ops->read_config(dn, PCI_VENDOR_ID, 4, &cfg); n += scnprintf(buf+n, len-n, "dev/vend:%08x\n", cfg); printk(KERN_WARNING "EEH: PCI device/vendor: %08x\n", cfg); - rtas_read_config(pdn, PCI_COMMAND, 4, &cfg); + eeh_ops->read_config(dn, PCI_COMMAND, 4, &cfg); n += scnprintf(buf+n, len-n, "cmd/stat:%x\n", cfg); printk(KERN_WARNING "EEH: PCI cmd/status register: %08x\n", cfg); @@ -196,11 +156,11 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) /* Gather bridge-specific registers */ if (dev->class >> 16 == PCI_BASE_CLASS_BRIDGE) { - rtas_read_config(pdn, PCI_SEC_STATUS, 2, &cfg); + eeh_ops->read_config(dn, PCI_SEC_STATUS, 2, &cfg); n += scnprintf(buf+n, len-n, "sec stat:%x\n", cfg); printk(KERN_WARNING "EEH: Bridge secondary status: %04x\n", cfg); - rtas_read_config(pdn, PCI_BRIDGE_CONTROL, 2, &cfg); + eeh_ops->read_config(dn, PCI_BRIDGE_CONTROL, 2, &cfg); n += scnprintf(buf+n, len-n, "brdg ctl:%x\n", cfg); printk(KERN_WARNING "EEH: Bridge control: %04x\n", cfg); } @@ -208,11 +168,11 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) /* Dump out the PCI-X command and status regs */ cap = pci_find_capability(dev, PCI_CAP_ID_PCIX); if (cap) { - rtas_read_config(pdn, cap, 4, &cfg); + eeh_ops->read_config(dn, cap, 4, &cfg); n += scnprintf(buf+n, len-n, "pcix-cmd:%x\n", cfg); printk(KERN_WARNING "EEH: PCI-X cmd: %08x\n", cfg); - rtas_read_config(pdn, cap+4, 4, &cfg); + eeh_ops->read_config(dn, cap+4, 4, &cfg); n += scnprintf(buf+n, len-n, "pcix-stat:%x\n", cfg); printk(KERN_WARNING "EEH: PCI-X status: %08x\n", cfg); } @@ -225,7 +185,7 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) "EEH: PCI-E capabilities and status follow:\n"); for (i=0; i<=8; i++) { - rtas_read_config(pdn, cap+4*i, 4, &cfg); + eeh_ops->read_config(dn, cap+4*i, 4, &cfg); n += scnprintf(buf+n, len-n, "%02x:%x\n", 4*i, cfg); printk(KERN_WARNING "EEH: PCI-E %02x: %08x\n", i, cfg); } @@ -237,7 +197,7 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) "EEH: PCI-E AER capability register set follows:\n"); for (i=0; i<14; i++) { - rtas_read_config(pdn, cap+4*i, 4, &cfg); + eeh_ops->read_config(dn, cap+4*i, 4, &cfg); n += scnprintf(buf+n, len-n, "%02x:%x\n", 4*i, cfg); printk(KERN_WARNING "EEH: PCI-E AER %02x: %08x\n", i, cfg); } @@ -246,111 +206,46 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) /* Gather status on devices under the bridge */ if (dev->class >> 16 == PCI_BASE_CLASS_BRIDGE) { - struct device_node *dn; + struct device_node *child; - for_each_child_of_node(pdn->node, dn) { - pdn = PCI_DN(dn); - if (pdn) - n += gather_pci_data(pdn, buf+n, len-n); + for_each_child_of_node(dn, child) { + if (of_node_to_eeh_dev(child)) + n += eeh_gather_pci_data(of_node_to_eeh_dev(child), buf+n, len-n); } } return n; } -void eeh_slot_error_detail(struct pci_dn *pdn, int severity) -{ - size_t loglen = 0; - pci_regs_buf[0] = 0; - - rtas_pci_enable(pdn, EEH_THAW_MMIO); - rtas_configure_bridge(pdn); - eeh_restore_bars(pdn); - loglen = gather_pci_data(pdn, pci_regs_buf, EEH_PCI_REGS_LOG_LEN); - - rtas_slot_error_detail(pdn, severity, pci_regs_buf, loglen); -} - /** - * read_slot_reset_state - Read the reset state of a device node's slot - * @dn: device node to read - * @rets: array to return results in - */ -static int read_slot_reset_state(struct pci_dn *pdn, int rets[]) -{ - int token, outputs; - int config_addr; - - if (ibm_read_slot_reset_state2 != RTAS_UNKNOWN_SERVICE) { - token = ibm_read_slot_reset_state2; - outputs = 4; - } else { - token = ibm_read_slot_reset_state; - rets[2] = 0; /* fake PE Unavailable info */ - outputs = 3; - } - - /* Use PE configuration address, if present */ - config_addr = pdn->eeh_config_addr; - if (pdn->eeh_pe_config_addr) - config_addr = pdn->eeh_pe_config_addr; - - return rtas_call(token, 3, outputs, rets, config_addr, - BUID_HI(pdn->phb->buid), BUID_LO(pdn->phb->buid)); -} - -/** - * eeh_wait_for_slot_status - returns error status of slot - * @pdn pci device node - * @max_wait_msecs maximum number to millisecs to wait - * - * Return negative value if a permanent error, else return - * Partition Endpoint (PE) status value. + * eeh_slot_error_detail - Generate combined log including driver log and error log + * @edev: device to report error log for + * @severity: temporary or permanent error log * - * If @max_wait_msecs is positive, then this routine will - * sleep until a valid status can be obtained, or until - * the max allowed wait time is exceeded, in which case - * a -2 is returned. + * This routine should be called to generate the combined log, which + * is comprised of driver log and error log. The driver log is figured + * out from the config space of the corresponding PCI device, while + * the error log is fetched through platform dependent function call. */ -int -eeh_wait_for_slot_status(struct pci_dn *pdn, int max_wait_msecs) +void eeh_slot_error_detail(struct eeh_dev *edev, int severity) { - int rc; - int rets[3]; - int mwait; - - while (1) { - rc = read_slot_reset_state(pdn, rets); - if (rc) return rc; - if (rets[1] == 0) return -1; /* EEH is not supported */ - - if (rets[0] != 5) return rets[0]; /* return actual status */ - - if (rets[2] == 0) return -1; /* permanently unavailable */ + size_t loglen = 0; + pci_regs_buf[0] = 0; - if (max_wait_msecs <= 0) break; + eeh_pci_enable(edev, EEH_OPT_THAW_MMIO); + eeh_ops->configure_bridge(eeh_dev_to_of_node(edev)); + eeh_restore_bars(edev); + loglen = eeh_gather_pci_data(edev, pci_regs_buf, EEH_PCI_REGS_LOG_LEN); - mwait = rets[2]; - if (mwait <= 0) { - printk (KERN_WARNING - "EEH: Firmware returned bad wait value=%d\n", mwait); - mwait = 1000; - } else if (mwait > 300*1000) { - printk (KERN_WARNING - "EEH: Firmware is taking too long, time=%d\n", mwait); - mwait = 300*1000; - } - max_wait_msecs -= mwait; - msleep (mwait); - } - - printk(KERN_WARNING "EEH: Timed out waiting for slot status\n"); - return -2; + eeh_ops->get_log(eeh_dev_to_of_node(edev), severity, pci_regs_buf, loglen); } /** - * eeh_token_to_phys - convert EEH address token to phys address - * @token i/o token, should be address in the form 0xA.... + * eeh_token_to_phys - Convert EEH address token to phys address + * @token: I/O token, should be address in the form 0xA.... + * + * This routine should be called to convert virtual I/O address + * to physical one. */ static inline unsigned long eeh_token_to_phys(unsigned long token) { @@ -365,36 +260,43 @@ static inline unsigned long eeh_token_to_phys(unsigned long token) return pa | (token & (PAGE_SIZE-1)); } -/** - * Return the "partitionable endpoint" (pe) under which this device lies +/** + * eeh_find_device_pe - Retrieve the PE for the given device + * @dn: device node + * + * Return the PE under which this device lies */ -struct device_node * find_device_pe(struct device_node *dn) +struct device_node *eeh_find_device_pe(struct device_node *dn) { - while ((dn->parent) && PCI_DN(dn->parent) && - (PCI_DN(dn->parent)->eeh_mode & EEH_MODE_SUPPORTED)) { + while (dn->parent && of_node_to_eeh_dev(dn->parent) && + (of_node_to_eeh_dev(dn->parent)->mode & EEH_MODE_SUPPORTED)) { dn = dn->parent; } return dn; } -/** Mark all devices that are children of this device as failed. - * Mark the device driver too, so that it can see the failure - * immediately; this is critical, since some drivers poll - * status registers in interrupts ... If a driver is polling, - * and the slot is frozen, then the driver can deadlock in - * an interrupt context, which is bad. +/** + * __eeh_mark_slot - Mark all child devices as failed + * @parent: parent device + * @mode_flag: failure flag + * + * Mark all devices that are children of this device as failed. + * Mark the device driver too, so that it can see the failure + * immediately; this is critical, since some drivers poll + * status registers in interrupts ... If a driver is polling, + * and the slot is frozen, then the driver can deadlock in + * an interrupt context, which is bad. */ - static void __eeh_mark_slot(struct device_node *parent, int mode_flag) { struct device_node *dn; for_each_child_of_node(parent, dn) { - if (PCI_DN(dn)) { + if (of_node_to_eeh_dev(dn)) { /* Mark the pci device driver too */ - struct pci_dev *dev = PCI_DN(dn)->pcidev; + struct pci_dev *dev = of_node_to_eeh_dev(dn)->pdev; - PCI_DN(dn)->eeh_mode |= mode_flag; + of_node_to_eeh_dev(dn)->mode |= mode_flag; if (dev && dev->driver) dev->error_state = pci_channel_io_frozen; @@ -404,92 +306,81 @@ static void __eeh_mark_slot(struct device_node *parent, int mode_flag) } } -void eeh_mark_slot (struct device_node *dn, int mode_flag) +/** + * eeh_mark_slot - Mark the indicated device and its children as failed + * @dn: parent device + * @mode_flag: failure flag + * + * Mark the indicated device and its child devices as failed. + * The device drivers are marked as failed as well. + */ +void eeh_mark_slot(struct device_node *dn, int mode_flag) { struct pci_dev *dev; - dn = find_device_pe (dn); + dn = eeh_find_device_pe(dn); /* Back up one, since config addrs might be shared */ - if (!pcibios_find_pci_bus(dn) && PCI_DN(dn->parent)) + if (!pcibios_find_pci_bus(dn) && of_node_to_eeh_dev(dn->parent)) dn = dn->parent; - PCI_DN(dn)->eeh_mode |= mode_flag; + of_node_to_eeh_dev(dn)->mode |= mode_flag; /* Mark the pci device too */ - dev = PCI_DN(dn)->pcidev; + dev = of_node_to_eeh_dev(dn)->pdev; if (dev) dev->error_state = pci_channel_io_frozen; __eeh_mark_slot(dn, mode_flag); } +/** + * __eeh_clear_slot - Clear failure flag for the child devices + * @parent: parent device + * @mode_flag: flag to be cleared + * + * Clear failure flag for the child devices. + */ static void __eeh_clear_slot(struct device_node *parent, int mode_flag) { struct device_node *dn; for_each_child_of_node(parent, dn) { - if (PCI_DN(dn)) { - PCI_DN(dn)->eeh_mode &= ~mode_flag; - PCI_DN(dn)->eeh_check_count = 0; + if (of_node_to_eeh_dev(dn)) { + of_node_to_eeh_dev(dn)->mode &= ~mode_flag; + of_node_to_eeh_dev(dn)->check_count = 0; __eeh_clear_slot(dn, mode_flag); } } } -void eeh_clear_slot (struct device_node *dn, int mode_flag) +/** + * eeh_clear_slot - Clear failure flag for the indicated device and its children + * @dn: parent device + * @mode_flag: flag to be cleared + * + * Clear failure flag for the indicated device and its children. + */ +void eeh_clear_slot(struct device_node *dn, int mode_flag) { unsigned long flags; raw_spin_lock_irqsave(&confirm_error_lock, flags); - dn = find_device_pe (dn); + dn = eeh_find_device_pe(dn); /* Back up one, since config addrs might be shared */ - if (!pcibios_find_pci_bus(dn) && PCI_DN(dn->parent)) + if (!pcibios_find_pci_bus(dn) && of_node_to_eeh_dev(dn->parent)) dn = dn->parent; - PCI_DN(dn)->eeh_mode &= ~mode_flag; - PCI_DN(dn)->eeh_check_count = 0; + of_node_to_eeh_dev(dn)->mode &= ~mode_flag; + of_node_to_eeh_dev(dn)->check_count = 0; __eeh_clear_slot(dn, mode_flag); raw_spin_unlock_irqrestore(&confirm_error_lock, flags); } -void __eeh_set_pe_freset(struct device_node *parent, unsigned int *freset) -{ - struct device_node *dn; - - for_each_child_of_node(parent, dn) { - if (PCI_DN(dn)) { - - struct pci_dev *dev = PCI_DN(dn)->pcidev; - - if (dev && dev->driver) - *freset |= dev->needs_freset; - - __eeh_set_pe_freset(dn, freset); - } - } -} - -void eeh_set_pe_freset(struct device_node *dn, unsigned int *freset) -{ - struct pci_dev *dev; - dn = find_device_pe(dn); - - /* Back up one, since config addrs might be shared */ - if (!pcibios_find_pci_bus(dn) && PCI_DN(dn->parent)) - dn = dn->parent; - - dev = PCI_DN(dn)->pcidev; - if (dev) - *freset |= dev->needs_freset; - - __eeh_set_pe_freset(dn, freset); -} - /** - * eeh_dn_check_failure - check if all 1's data is due to EEH slot freeze - * @dn device node - * @dev pci device, if known + * eeh_dn_check_failure - Check if all 1's data is due to EEH slot freeze + * @dn: device node + * @dev: pci device, if known * * Check for an EEH failure for the given device node. Call this * routine if the result of a read was all 0xff's and you want to @@ -504,35 +395,34 @@ void eeh_set_pe_freset(struct device_node *dn, unsigned int *freset) int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) { int ret; - int rets[3]; unsigned long flags; - struct pci_dn *pdn; + struct eeh_dev *edev; int rc = 0; const char *location; - total_mmio_ffs++; + eeh_stats.total_mmio_ffs++; if (!eeh_subsystem_enabled) return 0; if (!dn) { - no_dn++; + eeh_stats.no_dn++; return 0; } - dn = find_device_pe(dn); - pdn = PCI_DN(dn); + dn = eeh_find_device_pe(dn); + edev = of_node_to_eeh_dev(dn); /* Access to IO BARs might get this far and still not want checking. */ - if (!(pdn->eeh_mode & EEH_MODE_SUPPORTED) || - pdn->eeh_mode & EEH_MODE_NOCHECK) { - ignored_check++; + if (!(edev->mode & EEH_MODE_SUPPORTED) || + edev->mode & EEH_MODE_NOCHECK) { + eeh_stats.ignored_check++; pr_debug("EEH: Ignored check (%x) for %s %s\n", - pdn->eeh_mode, eeh_pci_name(dev), dn->full_name); + edev->mode, eeh_pci_name(dev), dn->full_name); return 0; } - if (!pdn->eeh_config_addr && !pdn->eeh_pe_config_addr) { - no_cfg_addr++; + if (!edev->config_addr && !edev->pe_config_addr) { + eeh_stats.no_cfg_addr++; return 0; } @@ -544,15 +434,15 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) */ raw_spin_lock_irqsave(&confirm_error_lock, flags); rc = 1; - if (pdn->eeh_mode & EEH_MODE_ISOLATED) { - pdn->eeh_check_count ++; - if (pdn->eeh_check_count % EEH_MAX_FAILS == 0) { + if (edev->mode & EEH_MODE_ISOLATED) { + edev->check_count++; + if (edev->check_count % EEH_MAX_FAILS == 0) { location = of_get_property(dn, "ibm,loc-code", NULL); - printk (KERN_ERR "EEH: %d reads ignored for recovering device at " + printk(KERN_ERR "EEH: %d reads ignored for recovering device at " "location=%s driver=%s pci addr=%s\n", - pdn->eeh_check_count, location, + edev->check_count, location, eeh_driver_name(dev), eeh_pci_name(dev)); - printk (KERN_ERR "EEH: Might be infinite loop in %s driver\n", + printk(KERN_ERR "EEH: Might be infinite loop in %s driver\n", eeh_driver_name(dev)); dump_stack(); } @@ -566,58 +456,39 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) * function zero of a multi-function device. * In any case they must share a common PHB. */ - ret = read_slot_reset_state(pdn, rets); - - /* If the call to firmware failed, punt */ - if (ret != 0) { - printk(KERN_WARNING "EEH: read_slot_reset_state() failed; rc=%d dn=%s\n", - ret, dn->full_name); - false_positives++; - pdn->eeh_false_positives ++; - rc = 0; - goto dn_unlock; - } + ret = eeh_ops->get_state(dn, NULL); /* Note that config-io to empty slots may fail; - * they are empty when they don't have children. */ - if ((rets[0] == 5) && (rets[2] == 0) && (dn->child == NULL)) { - false_positives++; - pdn->eeh_false_positives ++; - rc = 0; - goto dn_unlock; - } - - /* If EEH is not supported on this device, punt. */ - if (rets[1] != 1) { - printk(KERN_WARNING "EEH: event on unsupported device, rc=%d dn=%s\n", - ret, dn->full_name); - false_positives++; - pdn->eeh_false_positives ++; - rc = 0; - goto dn_unlock; - } - - /* If not the kind of error we know about, punt. */ - if (rets[0] != 1 && rets[0] != 2 && rets[0] != 4 && rets[0] != 5) { - false_positives++; - pdn->eeh_false_positives ++; + * they are empty when they don't have children. + * We will punt with the following conditions: Failure to get + * PE's state, EEH not support and Permanently unavailable + * state, PE is in good state. + */ + if ((ret < 0) || + (ret == EEH_STATE_NOT_SUPPORT) || + (ret & (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE)) == + (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE)) { + eeh_stats.false_positives++; + edev->false_positives ++; rc = 0; goto dn_unlock; } - slot_resets++; + eeh_stats.slot_resets++; /* Avoid repeated reports of this failure, including problems * with other functions on this device, and functions under - * bridges. */ - eeh_mark_slot (dn, EEH_MODE_ISOLATED); + * bridges. + */ + eeh_mark_slot(dn, EEH_MODE_ISOLATED); raw_spin_unlock_irqrestore(&confirm_error_lock, flags); - eeh_send_failure_event (dn, dev); + eeh_send_failure_event(edev); /* Most EEH events are due to device driver bugs. Having * a stack trace will help the device-driver authors figure - * out what happened. So print that out. */ + * out what happened. So print that out. + */ dump_stack(); return 1; @@ -629,9 +500,9 @@ dn_unlock: EXPORT_SYMBOL_GPL(eeh_dn_check_failure); /** - * eeh_check_failure - check if all 1's data is due to EEH slot freeze - * @token i/o token, should be address in the form 0xA.... - * @val value, should be all 1's (XXX why do we need this arg??) + * eeh_check_failure - Check if all 1's data is due to EEH slot freeze + * @token: I/O token, should be address in the form 0xA.... + * @val: value, should be all 1's (XXX why do we need this arg??) * * Check for an EEH failure at the given token address. Call this * routine if the result of a read was all 0xff's and you want to @@ -648,14 +519,14 @@ unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned lon /* Finding the phys addr + pci device; this is pretty quick. */ addr = eeh_token_to_phys((unsigned long __force) token); - dev = pci_get_device_by_addr(addr); + dev = pci_addr_cache_get_device(addr); if (!dev) { - no_device++; + eeh_stats.no_device++; return val; } dn = pci_device_to_OF_node(dev); - eeh_dn_check_failure (dn, dev); + eeh_dn_check_failure(dn, dev); pci_dev_put(dev); return val; @@ -663,115 +534,54 @@ unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned lon EXPORT_SYMBOL(eeh_check_failure); -/* ------------------------------------------------------------- */ -/* The code below deals with error recovery */ /** - * rtas_pci_enable - enable MMIO or DMA transfers for this slot - * @pdn pci device node + * eeh_pci_enable - Enable MMIO or DMA transfers for this slot + * @edev: pci device node + * + * This routine should be called to reenable frozen MMIO or DMA + * so that it would work correctly again. It's useful while doing + * recovery or log collection on the indicated device. */ - -int -rtas_pci_enable(struct pci_dn *pdn, int function) +int eeh_pci_enable(struct eeh_dev *edev, int function) { - int config_addr; int rc; + struct device_node *dn = eeh_dev_to_of_node(edev); - /* Use PE configuration address, if present */ - config_addr = pdn->eeh_config_addr; - if (pdn->eeh_pe_config_addr) - config_addr = pdn->eeh_pe_config_addr; - - rc = rtas_call(ibm_set_eeh_option, 4, 1, NULL, - config_addr, - BUID_HI(pdn->phb->buid), - BUID_LO(pdn->phb->buid), - function); - + rc = eeh_ops->set_option(dn, function); if (rc) printk(KERN_WARNING "EEH: Unexpected state change %d, err=%d dn=%s\n", - function, rc, pdn->node->full_name); + function, rc, dn->full_name); - rc = eeh_wait_for_slot_status (pdn, PCI_BUS_RESET_WAIT_MSEC); - if ((rc == 4) && (function == EEH_THAW_MMIO)) + rc = eeh_ops->wait_state(dn, PCI_BUS_RESET_WAIT_MSEC); + if (rc > 0 && (rc & EEH_STATE_MMIO_ENABLED) && + (function == EEH_OPT_THAW_MMIO)) return 0; return rc; } /** - * rtas_pci_slot_reset - raises/lowers the pci #RST line - * @pdn pci device node - * @state: 1/0 to raise/lower the #RST - * - * Clear the EEH-frozen condition on a slot. This routine - * asserts the PCI #RST line if the 'state' argument is '1', - * and drops the #RST line if 'state is '0'. This routine is - * safe to call in an interrupt context. - * - */ - -static void -rtas_pci_slot_reset(struct pci_dn *pdn, int state) -{ - int config_addr; - int rc; - - BUG_ON (pdn==NULL); - - if (!pdn->phb) { - printk (KERN_WARNING "EEH: in slot reset, device node %s has no phb\n", - pdn->node->full_name); - return; - } - - /* Use PE configuration address, if present */ - config_addr = pdn->eeh_config_addr; - if (pdn->eeh_pe_config_addr) - config_addr = pdn->eeh_pe_config_addr; - - rc = rtas_call(ibm_set_slot_reset, 4, 1, NULL, - config_addr, - BUID_HI(pdn->phb->buid), - BUID_LO(pdn->phb->buid), - state); - - /* Fundamental-reset not supported on this PE, try hot-reset */ - if (rc == -8 && state == 3) { - rc = rtas_call(ibm_set_slot_reset, 4, 1, NULL, - config_addr, - BUID_HI(pdn->phb->buid), - BUID_LO(pdn->phb->buid), 1); - if (rc) - printk(KERN_WARNING - "EEH: Unable to reset the failed slot," - " #RST=%d dn=%s\n", - rc, pdn->node->full_name); - } -} - -/** * pcibios_set_pcie_slot_reset - Set PCI-E reset state - * @dev: pci device struct - * @state: reset state to enter + * @dev: pci device struct + * @state: reset state to enter * * Return value: * 0 if success - **/ + */ int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state) { struct device_node *dn = pci_device_to_OF_node(dev); - struct pci_dn *pdn = PCI_DN(dn); switch (state) { case pcie_deassert_reset: - rtas_pci_slot_reset(pdn, 0); + eeh_ops->reset(dn, EEH_RESET_DEACTIVATE); break; case pcie_hot_reset: - rtas_pci_slot_reset(pdn, 1); + eeh_ops->reset(dn, EEH_RESET_HOT); break; case pcie_warm_reset: - rtas_pci_slot_reset(pdn, 3); + eeh_ops->reset(dn, EEH_RESET_FUNDAMENTAL); break; default: return -EINVAL; @@ -781,13 +591,66 @@ int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state stat } /** - * rtas_set_slot_reset -- assert the pci #RST line for 1/4 second - * @pdn: pci device node to be reset. + * __eeh_set_pe_freset - Check the required reset for child devices + * @parent: parent device + * @freset: return value + * + * Each device might have its preferred reset type: fundamental or + * hot reset. The routine is used to collect the information from + * the child devices so that they could be reset accordingly. + */ +void __eeh_set_pe_freset(struct device_node *parent, unsigned int *freset) +{ + struct device_node *dn; + + for_each_child_of_node(parent, dn) { + if (of_node_to_eeh_dev(dn)) { + struct pci_dev *dev = of_node_to_eeh_dev(dn)->pdev; + + if (dev && dev->driver) + *freset |= dev->needs_freset; + + __eeh_set_pe_freset(dn, freset); + } + } +} + +/** + * eeh_set_pe_freset - Check the required reset for the indicated device and its children + * @dn: parent device + * @freset: return value + * + * Each device might have its preferred reset type: fundamental or + * hot reset. The routine is used to collected the information for + * the indicated device and its children so that the bunch of the + * devices could be reset properly. */ +void eeh_set_pe_freset(struct device_node *dn, unsigned int *freset) +{ + struct pci_dev *dev; + dn = eeh_find_device_pe(dn); + + /* Back up one, since config addrs might be shared */ + if (!pcibios_find_pci_bus(dn) && of_node_to_eeh_dev(dn->parent)) + dn = dn->parent; + + dev = of_node_to_eeh_dev(dn)->pdev; + if (dev) + *freset |= dev->needs_freset; -static void __rtas_set_slot_reset(struct pci_dn *pdn) + __eeh_set_pe_freset(dn, freset); +} + +/** + * eeh_reset_pe_once - Assert the pci #RST line for 1/4 second + * @edev: pci device node to be reset. + * + * Assert the PCI #RST line for 1/4 second. + */ +static void eeh_reset_pe_once(struct eeh_dev *edev) { unsigned int freset = 0; + struct device_node *dn = eeh_dev_to_of_node(edev); /* Determine type of EEH reset required for * Partitionable Endpoint, a hot-reset (1) @@ -795,58 +658,68 @@ static void __rtas_set_slot_reset(struct pci_dn *pdn) * A fundamental reset required by any device under * Partitionable Endpoint trumps hot-reset. */ - eeh_set_pe_freset(pdn->node, &freset); + eeh_set_pe_freset(dn, &freset); if (freset) - rtas_pci_slot_reset(pdn, 3); + eeh_ops->reset(dn, EEH_RESET_FUNDAMENTAL); else - rtas_pci_slot_reset(pdn, 1); + eeh_ops->reset(dn, EEH_RESET_HOT); /* The PCI bus requires that the reset be held high for at least - * a 100 milliseconds. We wait a bit longer 'just in case'. */ - + * a 100 milliseconds. We wait a bit longer 'just in case'. + */ #define PCI_BUS_RST_HOLD_TIME_MSEC 250 - msleep (PCI_BUS_RST_HOLD_TIME_MSEC); + msleep(PCI_BUS_RST_HOLD_TIME_MSEC); /* We might get hit with another EEH freeze as soon as the * pci slot reset line is dropped. Make sure we don't miss - * these, and clear the flag now. */ - eeh_clear_slot (pdn->node, EEH_MODE_ISOLATED); + * these, and clear the flag now. + */ + eeh_clear_slot(dn, EEH_MODE_ISOLATED); - rtas_pci_slot_reset (pdn, 0); + eeh_ops->reset(dn, EEH_RESET_DEACTIVATE); /* After a PCI slot has been reset, the PCI Express spec requires * a 1.5 second idle time for the bus to stabilize, before starting - * up traffic. */ + * up traffic. + */ #define PCI_BUS_SETTLE_TIME_MSEC 1800 - msleep (PCI_BUS_SETTLE_TIME_MSEC); + msleep(PCI_BUS_SETTLE_TIME_MSEC); } -int rtas_set_slot_reset(struct pci_dn *pdn) +/** + * eeh_reset_pe - Reset the indicated PE + * @edev: PCI device associated EEH device + * + * This routine should be called to reset indicated device, including + * PE. A PE might include multiple PCI devices and sometimes PCI bridges + * might be involved as well. + */ +int eeh_reset_pe(struct eeh_dev *edev) { int i, rc; + struct device_node *dn = eeh_dev_to_of_node(edev); /* Take three shots at resetting the bus */ for (i=0; i<3; i++) { - __rtas_set_slot_reset(pdn); + eeh_reset_pe_once(edev); - rc = eeh_wait_for_slot_status(pdn, PCI_BUS_RESET_WAIT_MSEC); - if (rc == 0) + rc = eeh_ops->wait_state(dn, PCI_BUS_RESET_WAIT_MSEC); + if (rc == (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE)) return 0; if (rc < 0) { printk(KERN_ERR "EEH: unrecoverable slot failure %s\n", - pdn->node->full_name); + dn->full_name); return -1; } printk(KERN_ERR "EEH: bus reset %d failed on slot %s, rc=%d\n", - i+1, pdn->node->full_name, rc); + i+1, dn->full_name, rc); } return -1; } -/* ------------------------------------------------------- */ /** Save and restore of PCI BARs * * Although firmware will set up BARs during boot, it doesn't @@ -856,181 +729,122 @@ int rtas_set_slot_reset(struct pci_dn *pdn) */ /** - * __restore_bars - Restore the Base Address Registers - * @pdn: pci device node + * eeh_restore_one_device_bars - Restore the Base Address Registers for one device + * @edev: PCI device associated EEH device * * Loads the PCI configuration space base address registers, * the expansion ROM base address, the latency timer, and etc. * from the saved values in the device node. */ -static inline void __restore_bars (struct pci_dn *pdn) +static inline void eeh_restore_one_device_bars(struct eeh_dev *edev) { int i; u32 cmd; + struct device_node *dn = eeh_dev_to_of_node(edev); + + if (!edev->phb) + return; - if (NULL==pdn->phb) return; for (i=4; i<10; i++) { - rtas_write_config(pdn, i*4, 4, pdn->config_space[i]); + eeh_ops->write_config(dn, i*4, 4, edev->config_space[i]); } /* 12 == Expansion ROM Address */ - rtas_write_config(pdn, 12*4, 4, pdn->config_space[12]); + eeh_ops->write_config(dn, 12*4, 4, edev->config_space[12]); #define BYTE_SWAP(OFF) (8*((OFF)/4)+3-(OFF)) -#define SAVED_BYTE(OFF) (((u8 *)(pdn->config_space))[BYTE_SWAP(OFF)]) +#define SAVED_BYTE(OFF) (((u8 *)(edev->config_space))[BYTE_SWAP(OFF)]) - rtas_write_config (pdn, PCI_CACHE_LINE_SIZE, 1, + eeh_ops->write_config(dn, PCI_CACHE_LINE_SIZE, 1, SAVED_BYTE(PCI_CACHE_LINE_SIZE)); - rtas_write_config (pdn, PCI_LATENCY_TIMER, 1, + eeh_ops->write_config(dn, PCI_LATENCY_TIMER, 1, SAVED_BYTE(PCI_LATENCY_TIMER)); /* max latency, min grant, interrupt pin and line */ - rtas_write_config(pdn, 15*4, 4, pdn->config_space[15]); + eeh_ops->write_config(dn, 15*4, 4, edev->config_space[15]); /* Restore PERR & SERR bits, some devices require it, - don't touch the other command bits */ - rtas_read_config(pdn, PCI_COMMAND, 4, &cmd); - if (pdn->config_space[1] & PCI_COMMAND_PARITY) + * don't touch the other command bits + */ + eeh_ops->read_config(dn, PCI_COMMAND, 4, &cmd); + if (edev->config_space[1] & PCI_COMMAND_PARITY) cmd |= PCI_COMMAND_PARITY; else cmd &= ~PCI_COMMAND_PARITY; - if (pdn->config_space[1] & PCI_COMMAND_SERR) + if (edev->config_space[1] & PCI_COMMAND_SERR) cmd |= PCI_COMMAND_SERR; else cmd &= ~PCI_COMMAND_SERR; - rtas_write_config(pdn, PCI_COMMAND, 4, cmd); + eeh_ops->write_config(dn, PCI_COMMAND, 4, cmd); } /** - * eeh_restore_bars - restore the PCI config space info + * eeh_restore_bars - Restore the PCI config space info + * @edev: EEH device * * This routine performs a recursive walk to the children * of this device as well. */ -void eeh_restore_bars(struct pci_dn *pdn) +void eeh_restore_bars(struct eeh_dev *edev) { struct device_node *dn; - if (!pdn) + if (!edev) return; - if ((pdn->eeh_mode & EEH_MODE_SUPPORTED) && !IS_BRIDGE(pdn->class_code)) - __restore_bars (pdn); + if ((edev->mode & EEH_MODE_SUPPORTED) && !IS_BRIDGE(edev->class_code)) + eeh_restore_one_device_bars(edev); - for_each_child_of_node(pdn->node, dn) - eeh_restore_bars (PCI_DN(dn)); + for_each_child_of_node(eeh_dev_to_of_node(edev), dn) + eeh_restore_bars(of_node_to_eeh_dev(dn)); } /** - * eeh_save_bars - save device bars + * eeh_save_bars - Save device bars + * @edev: PCI device associated EEH device * * Save the values of the device bars. Unlike the restore * routine, this routine is *not* recursive. This is because * PCI devices are added individually; but, for the restore, * an entire slot is reset at a time. */ -static void eeh_save_bars(struct pci_dn *pdn) +static void eeh_save_bars(struct eeh_dev *edev) { int i; + struct device_node *dn; - if (!pdn ) + if (!edev) return; + dn = eeh_dev_to_of_node(edev); for (i = 0; i < 16; i++) - rtas_read_config(pdn, i * 4, 4, &pdn->config_space[i]); -} - -void -rtas_configure_bridge(struct pci_dn *pdn) -{ - int config_addr; - int rc; - int token; - - /* Use PE configuration address, if present */ - config_addr = pdn->eeh_config_addr; - if (pdn->eeh_pe_config_addr) - config_addr = pdn->eeh_pe_config_addr; - - /* Use new configure-pe function, if supported */ - if (ibm_configure_pe != RTAS_UNKNOWN_SERVICE) - token = ibm_configure_pe; - else - token = ibm_configure_bridge; - - rc = rtas_call(token, 3, 1, NULL, - config_addr, - BUID_HI(pdn->phb->buid), - BUID_LO(pdn->phb->buid)); - if (rc) { - printk (KERN_WARNING "EEH: Unable to configure device bridge (%d) for %s\n", - rc, pdn->node->full_name); - } + eeh_ops->read_config(dn, i * 4, 4, &edev->config_space[i]); } -/* ------------------------------------------------------------- */ -/* The code below deals with enabling EEH for devices during the - * early boot sequence. EEH must be enabled before any PCI probing - * can be done. +/** + * eeh_early_enable - Early enable EEH on the indicated device + * @dn: device node + * @data: BUID + * + * Enable EEH functionality on the specified PCI device. The function + * is expected to be called before real PCI probing is done. However, + * the PHBs have been initialized at this point. */ - -#define EEH_ENABLE 1 - -struct eeh_early_enable_info { - unsigned int buid_hi; - unsigned int buid_lo; -}; - -static int get_pe_addr (int config_addr, - struct eeh_early_enable_info *info) +static void *eeh_early_enable(struct device_node *dn, void *data) { - unsigned int rets[3]; - int ret; - - /* Use latest config-addr token on power6 */ - if (ibm_get_config_addr_info2 != RTAS_UNKNOWN_SERVICE) { - /* Make sure we have a PE in hand */ - ret = rtas_call (ibm_get_config_addr_info2, 4, 2, rets, - config_addr, info->buid_hi, info->buid_lo, 1); - if (ret || (rets[0]==0)) - return 0; - - ret = rtas_call (ibm_get_config_addr_info2, 4, 2, rets, - config_addr, info->buid_hi, info->buid_lo, 0); - if (ret) - return 0; - return rets[0]; - } - - /* Use older config-addr token on power5 */ - if (ibm_get_config_addr_info != RTAS_UNKNOWN_SERVICE) { - ret = rtas_call (ibm_get_config_addr_info, 4, 2, rets, - config_addr, info->buid_hi, info->buid_lo, 0); - if (ret) - return 0; - return rets[0]; - } - return 0; -} - -/* Enable eeh for the given device node. */ -static void *early_enable_eeh(struct device_node *dn, void *data) -{ - unsigned int rets[3]; - struct eeh_early_enable_info *info = data; int ret; const u32 *class_code = of_get_property(dn, "class-code", NULL); const u32 *vendor_id = of_get_property(dn, "vendor-id", NULL); const u32 *device_id = of_get_property(dn, "device-id", NULL); const u32 *regs; int enable; - struct pci_dn *pdn = PCI_DN(dn); + struct eeh_dev *edev = of_node_to_eeh_dev(dn); - pdn->class_code = 0; - pdn->eeh_mode = 0; - pdn->eeh_check_count = 0; - pdn->eeh_freeze_count = 0; - pdn->eeh_false_positives = 0; + edev->class_code = 0; + edev->mode = 0; + edev->check_count = 0; + edev->freeze_count = 0; + edev->false_positives = 0; if (!of_device_is_available(dn)) return NULL; @@ -1041,54 +855,56 @@ static void *early_enable_eeh(struct device_node *dn, void *data) /* There is nothing to check on PCI to ISA bridges */ if (dn->type && !strcmp(dn->type, "isa")) { - pdn->eeh_mode |= EEH_MODE_NOCHECK; + edev->mode |= EEH_MODE_NOCHECK; return NULL; } - pdn->class_code = *class_code; + edev->class_code = *class_code; /* Ok... see if this device supports EEH. Some do, some don't, - * and the only way to find out is to check each and every one. */ + * and the only way to find out is to check each and every one. + */ regs = of_get_property(dn, "reg", NULL); if (regs) { /* First register entry is addr (00BBSS00) */ /* Try to enable eeh */ - ret = rtas_call(ibm_set_eeh_option, 4, 1, NULL, - regs[0], info->buid_hi, info->buid_lo, - EEH_ENABLE); + ret = eeh_ops->set_option(dn, EEH_OPT_ENABLE); enable = 0; if (ret == 0) { - pdn->eeh_config_addr = regs[0]; + edev->config_addr = regs[0]; /* If the newer, better, ibm,get-config-addr-info is supported, - * then use that instead. */ - pdn->eeh_pe_config_addr = get_pe_addr(pdn->eeh_config_addr, info); + * then use that instead. + */ + edev->pe_config_addr = eeh_ops->get_pe_addr(dn); /* Some older systems (Power4) allow the * ibm,set-eeh-option call to succeed even on nodes * where EEH is not supported. Verify support - * explicitly. */ - ret = read_slot_reset_state(pdn, rets); - if ((ret == 0) && (rets[1] == 1)) + * explicitly. + */ + ret = eeh_ops->get_state(dn, NULL); + if (ret > 0 && ret != EEH_STATE_NOT_SUPPORT) enable = 1; } if (enable) { eeh_subsystem_enabled = 1; - pdn->eeh_mode |= EEH_MODE_SUPPORTED; + edev->mode |= EEH_MODE_SUPPORTED; pr_debug("EEH: %s: eeh enabled, config=%x pe_config=%x\n", - dn->full_name, pdn->eeh_config_addr, - pdn->eeh_pe_config_addr); + dn->full_name, edev->config_addr, + edev->pe_config_addr); } else { /* This device doesn't support EEH, but it may have an - * EEH parent, in which case we mark it as supported. */ - if (dn->parent && PCI_DN(dn->parent) - && (PCI_DN(dn->parent)->eeh_mode & EEH_MODE_SUPPORTED)) { + * EEH parent, in which case we mark it as supported. + */ + if (dn->parent && of_node_to_eeh_dev(dn->parent) && + (of_node_to_eeh_dev(dn->parent)->mode & EEH_MODE_SUPPORTED)) { /* Parent supports EEH. */ - pdn->eeh_mode |= EEH_MODE_SUPPORTED; - pdn->eeh_config_addr = PCI_DN(dn->parent)->eeh_config_addr; + edev->mode |= EEH_MODE_SUPPORTED; + edev->config_addr = of_node_to_eeh_dev(dn->parent)->config_addr; return NULL; } } @@ -1097,11 +913,63 @@ static void *early_enable_eeh(struct device_node *dn, void *data) dn->full_name); } - eeh_save_bars(pdn); + eeh_save_bars(edev); return NULL; } -/* +/** + * eeh_ops_register - Register platform dependent EEH operations + * @ops: platform dependent EEH operations + * + * Register the platform dependent EEH operation callback + * functions. The platform should call this function before + * any other EEH operations. + */ +int __init eeh_ops_register(struct eeh_ops *ops) +{ + if (!ops->name) { + pr_warning("%s: Invalid EEH ops name for %p\n", + __func__, ops); + return -EINVAL; + } + + if (eeh_ops && eeh_ops != ops) { + pr_warning("%s: EEH ops of platform %s already existing (%s)\n", + __func__, eeh_ops->name, ops->name); + return -EEXIST; + } + + eeh_ops = ops; + + return 0; +} + +/** + * eeh_ops_unregister - Unreigster platform dependent EEH operations + * @name: name of EEH platform operations + * + * Unregister the platform dependent EEH operation callback + * functions. + */ +int __exit eeh_ops_unregister(const char *name) +{ + if (!name || !strlen(name)) { + pr_warning("%s: Invalid EEH ops name\n", + __func__); + return -EINVAL; + } + + if (eeh_ops && !strcmp(eeh_ops->name, name)) { + eeh_ops = NULL; + return 0; + } + + return -EEXIST; +} + +/** + * eeh_init - EEH initialization + * * Initialize EEH by trying to enable it for all of the adapters in the system. * As a side effect we can determine here if eeh is supported at all. * Note that we leave EEH on so failed config cycles won't cause a machine @@ -1117,50 +985,35 @@ static void *early_enable_eeh(struct device_node *dn, void *data) void __init eeh_init(void) { struct device_node *phb, *np; - struct eeh_early_enable_info info; + int ret; + + /* call platform initialization function */ + if (!eeh_ops) { + pr_warning("%s: Platform EEH operation not found\n", + __func__); + return; + } else if ((ret = eeh_ops->init())) { + pr_warning("%s: Failed to call platform init function (%d)\n", + __func__, ret); + return; + } raw_spin_lock_init(&confirm_error_lock); - spin_lock_init(&slot_errbuf_lock); np = of_find_node_by_path("/rtas"); if (np == NULL) return; - ibm_set_eeh_option = rtas_token("ibm,set-eeh-option"); - ibm_set_slot_reset = rtas_token("ibm,set-slot-reset"); - ibm_read_slot_reset_state2 = rtas_token("ibm,read-slot-reset-state2"); - ibm_read_slot_reset_state = rtas_token("ibm,read-slot-reset-state"); - ibm_slot_error_detail = rtas_token("ibm,slot-error-detail"); - ibm_get_config_addr_info = rtas_token("ibm,get-config-addr-info"); - ibm_get_config_addr_info2 = rtas_token("ibm,get-config-addr-info2"); - ibm_configure_bridge = rtas_token ("ibm,configure-bridge"); - ibm_configure_pe = rtas_token("ibm,configure-pe"); - - if (ibm_set_eeh_option == RTAS_UNKNOWN_SERVICE) - return; - - eeh_error_buf_size = rtas_token("rtas-error-log-max"); - if (eeh_error_buf_size == RTAS_UNKNOWN_SERVICE) { - eeh_error_buf_size = 1024; - } - if (eeh_error_buf_size > RTAS_ERROR_LOG_MAX) { - printk(KERN_WARNING "EEH: rtas-error-log-max is bigger than allocated " - "buffer ! (%d vs %d)", eeh_error_buf_size, RTAS_ERROR_LOG_MAX); - eeh_error_buf_size = RTAS_ERROR_LOG_MAX; - } - /* Enable EEH for all adapters. Note that eeh requires buid's */ for (phb = of_find_node_by_name(NULL, "pci"); phb; phb = of_find_node_by_name(phb, "pci")) { unsigned long buid; buid = get_phb_buid(phb); - if (buid == 0 || PCI_DN(phb) == NULL) + if (buid == 0 || !of_node_to_eeh_dev(phb)) continue; - info.buid_lo = BUID_LO(buid); - info.buid_hi = BUID_HI(buid); - traverse_pci_devices(phb, early_enable_eeh, &info); + traverse_pci_devices(phb, eeh_early_enable, NULL); } if (eeh_subsystem_enabled) @@ -1170,7 +1023,7 @@ void __init eeh_init(void) } /** - * eeh_add_device_early - enable EEH for the indicated device_node + * eeh_add_device_early - Enable EEH for the indicated device_node * @dn: device node for which to set up EEH * * This routine must be used to perform EEH initialization for PCI @@ -1184,21 +1037,26 @@ void __init eeh_init(void) static void eeh_add_device_early(struct device_node *dn) { struct pci_controller *phb; - struct eeh_early_enable_info info; - if (!dn || !PCI_DN(dn)) + if (!dn || !of_node_to_eeh_dev(dn)) return; - phb = PCI_DN(dn)->phb; + phb = of_node_to_eeh_dev(dn)->phb; /* USB Bus children of PCI devices will not have BUID's */ if (NULL == phb || 0 == phb->buid) return; - info.buid_hi = BUID_HI(phb->buid); - info.buid_lo = BUID_LO(phb->buid); - early_enable_eeh(dn, &info); + eeh_early_enable(dn, NULL); } +/** + * eeh_add_device_tree_early - Enable EEH for the indicated device + * @dn: device node + * + * This routine must be used to perform EEH initialization for the + * indicated PCI device that was added after system boot (e.g. + * hotplug, dlpar). + */ void eeh_add_device_tree_early(struct device_node *dn) { struct device_node *sib; @@ -1210,7 +1068,7 @@ void eeh_add_device_tree_early(struct device_node *dn) EXPORT_SYMBOL_GPL(eeh_add_device_tree_early); /** - * eeh_add_device_late - perform EEH initialization for the indicated pci device + * eeh_add_device_late - Perform EEH initialization for the indicated pci device * @dev: pci device for which to set up EEH * * This routine must be used to complete EEH initialization for PCI @@ -1219,7 +1077,7 @@ EXPORT_SYMBOL_GPL(eeh_add_device_tree_early); static void eeh_add_device_late(struct pci_dev *dev) { struct device_node *dn; - struct pci_dn *pdn; + struct eeh_dev *edev; if (!dev || !eeh_subsystem_enabled) return; @@ -1227,20 +1085,29 @@ static void eeh_add_device_late(struct pci_dev *dev) pr_debug("EEH: Adding device %s\n", pci_name(dev)); dn = pci_device_to_OF_node(dev); - pdn = PCI_DN(dn); - if (pdn->pcidev == dev) { + edev = pci_dev_to_eeh_dev(dev); + if (edev->pdev == dev) { pr_debug("EEH: Already referenced !\n"); return; } - WARN_ON(pdn->pcidev); + WARN_ON(edev->pdev); - pci_dev_get (dev); - pdn->pcidev = dev; + pci_dev_get(dev); + edev->pdev = dev; + dev->dev.archdata.edev = edev; pci_addr_cache_insert_device(dev); eeh_sysfs_add_device(dev); } +/** + * eeh_add_device_tree_late - Perform EEH initialization for the indicated PCI bus + * @bus: PCI bus + * + * This routine must be used to perform EEH initialization for PCI + * devices which are attached to the indicated PCI bus. The PCI bus + * is added after system boot through hotplug or dlpar. + */ void eeh_add_device_tree_late(struct pci_bus *bus) { struct pci_dev *dev; @@ -1257,7 +1124,7 @@ void eeh_add_device_tree_late(struct pci_bus *bus) EXPORT_SYMBOL_GPL(eeh_add_device_tree_late); /** - * eeh_remove_device - undo EEH setup for the indicated pci device + * eeh_remove_device - Undo EEH setup for the indicated pci device * @dev: pci device to be removed * * This routine should be called when a device is removed from @@ -1268,25 +1135,35 @@ EXPORT_SYMBOL_GPL(eeh_add_device_tree_late); */ static void eeh_remove_device(struct pci_dev *dev) { - struct device_node *dn; + struct eeh_dev *edev; + if (!dev || !eeh_subsystem_enabled) return; + edev = pci_dev_to_eeh_dev(dev); /* Unregister the device with the EEH/PCI address search system */ pr_debug("EEH: Removing device %s\n", pci_name(dev)); - dn = pci_device_to_OF_node(dev); - if (PCI_DN(dn)->pcidev == NULL) { + if (!edev || !edev->pdev) { pr_debug("EEH: Not referenced !\n"); return; } - PCI_DN(dn)->pcidev = NULL; - pci_dev_put (dev); + edev->pdev = NULL; + dev->dev.archdata.edev = NULL; + pci_dev_put(dev); pci_addr_cache_remove_device(dev); eeh_sysfs_remove_device(dev); } +/** + * eeh_remove_bus_device - Undo EEH setup for the indicated PCI device + * @dev: PCI device + * + * This routine must be called when a device is removed from the + * running system through hotplug or dlpar. The corresponding + * PCI address cache will be removed. + */ void eeh_remove_bus_device(struct pci_dev *dev) { struct pci_bus *bus = dev->subordinate; @@ -1305,21 +1182,24 @@ static int proc_eeh_show(struct seq_file *m, void *v) { if (0 == eeh_subsystem_enabled) { seq_printf(m, "EEH Subsystem is globally disabled\n"); - seq_printf(m, "eeh_total_mmio_ffs=%ld\n", total_mmio_ffs); + seq_printf(m, "eeh_total_mmio_ffs=%llu\n", eeh_stats.total_mmio_ffs); } else { seq_printf(m, "EEH Subsystem is enabled\n"); seq_printf(m, - "no device=%ld\n" - "no device node=%ld\n" - "no config address=%ld\n" - "check not wanted=%ld\n" - "eeh_total_mmio_ffs=%ld\n" - "eeh_false_positives=%ld\n" - "eeh_slot_resets=%ld\n", - no_device, no_dn, no_cfg_addr, - ignored_check, total_mmio_ffs, - false_positives, - slot_resets); + "no device=%llu\n" + "no device node=%llu\n" + "no config address=%llu\n" + "check not wanted=%llu\n" + "eeh_total_mmio_ffs=%llu\n" + "eeh_false_positives=%llu\n" + "eeh_slot_resets=%llu\n", + eeh_stats.no_device, + eeh_stats.no_dn, + eeh_stats.no_cfg_addr, + eeh_stats.ignored_check, + eeh_stats.total_mmio_ffs, + eeh_stats.false_positives, + eeh_stats.slot_resets); } return 0; diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c index fc5ae76..e5ae1c6 100644 --- a/arch/powerpc/platforms/pseries/eeh_cache.c +++ b/arch/powerpc/platforms/pseries/eeh_cache.c @@ -1,5 +1,4 @@ /* - * eeh_cache.c * PCI address cache; allows the lookup of PCI devices based on I/O address * * Copyright IBM Corporation 2004 @@ -47,8 +46,7 @@ * than any hash algo I could think of for this problem, even * with the penalty of slow pointer chases for d-cache misses). */ -struct pci_io_addr_range -{ +struct pci_io_addr_range { struct rb_node rb_node; unsigned long addr_lo; unsigned long addr_hi; @@ -56,13 +54,12 @@ struct pci_io_addr_range unsigned int flags; }; -static struct pci_io_addr_cache -{ +static struct pci_io_addr_cache { struct rb_root rb_root; spinlock_t piar_lock; } pci_io_addr_cache_root; -static inline struct pci_dev *__pci_get_device_by_addr(unsigned long addr) +static inline struct pci_dev *__pci_addr_cache_get_device(unsigned long addr) { struct rb_node *n = pci_io_addr_cache_root.rb_root.rb_node; @@ -86,7 +83,7 @@ static inline struct pci_dev *__pci_get_device_by_addr(unsigned long addr) } /** - * pci_get_device_by_addr - Get device, given only address + * pci_addr_cache_get_device - Get device, given only address * @addr: mmio (PIO) phys address or i/o port number * * Given an mmio phys address, or a port number, find a pci device @@ -95,13 +92,13 @@ static inline struct pci_dev *__pci_get_device_by_addr(unsigned long addr) * from zero (that is, they do *not* have pci_io_addr added in). * It is safe to call this function within an interrupt. */ -struct pci_dev *pci_get_device_by_addr(unsigned long addr) +struct pci_dev *pci_addr_cache_get_device(unsigned long addr) { struct pci_dev *dev; unsigned long flags; spin_lock_irqsave(&pci_io_addr_cache_root.piar_lock, flags); - dev = __pci_get_device_by_addr(addr); + dev = __pci_addr_cache_get_device(addr); spin_unlock_irqrestore(&pci_io_addr_cache_root.piar_lock, flags); return dev; } @@ -166,7 +163,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo, #ifdef DEBUG printk(KERN_DEBUG "PIAR: insert range=[%lx:%lx] dev=%s\n", - alo, ahi, pci_name (dev)); + alo, ahi, pci_name(dev)); #endif rb_link_node(&piar->rb_node, parent, p); @@ -178,7 +175,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo, static void __pci_addr_cache_insert_device(struct pci_dev *dev) { struct device_node *dn; - struct pci_dn *pdn; + struct eeh_dev *edev; int i; dn = pci_device_to_OF_node(dev); @@ -187,13 +184,19 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev) return; } + edev = of_node_to_eeh_dev(dn); + if (!edev) { + pr_warning("PCI: no EEH dev found for dn=%s\n", + dn->full_name); + return; + } + /* Skip any devices for which EEH is not enabled. */ - pdn = PCI_DN(dn); - if (!(pdn->eeh_mode & EEH_MODE_SUPPORTED) || - pdn->eeh_mode & EEH_MODE_NOCHECK) { + if (!(edev->mode & EEH_MODE_SUPPORTED) || + edev->mode & EEH_MODE_NOCHECK) { #ifdef DEBUG - printk(KERN_INFO "PCI: skip building address cache for=%s - %s\n", - pci_name(dev), pdn->node->full_name); + pr_info("PCI: skip building address cache for=%s - %s\n", + pci_name(dev), dn->full_name); #endif return; } @@ -284,6 +287,7 @@ void pci_addr_cache_remove_device(struct pci_dev *dev) void __init pci_addr_cache_build(void) { struct device_node *dn; + struct eeh_dev *edev; struct pci_dev *dev = NULL; spin_lock_init(&pci_io_addr_cache_root.piar_lock); @@ -294,8 +298,14 @@ void __init pci_addr_cache_build(void) dn = pci_device_to_OF_node(dev); if (!dn) continue; + + edev = of_node_to_eeh_dev(dn); + if (!edev) + continue; + pci_dev_get(dev); /* matching put is in eeh_remove_device() */ - PCI_DN(dn)->pcidev = dev; + dev->dev.archdata.edev = edev; + edev->pdev = dev; eeh_sysfs_add_device(dev); } diff --git a/arch/powerpc/platforms/pseries/eeh_dev.c b/arch/powerpc/platforms/pseries/eeh_dev.c new file mode 100644 index 0000000..f3aed7d --- /dev/null +++ b/arch/powerpc/platforms/pseries/eeh_dev.c @@ -0,0 +1,102 @@ +/* + * The file intends to implement dynamic creation of EEH device, which will + * be bound with OF node and PCI device simutaneously. The EEH devices would + * be foundamental information for EEH core components to work proerly. Besides, + * We have to support multiple situations where dynamic creation of EEH device + * is required: + * + * 1) Before PCI emunation starts, we need create EEH devices according to the + * PCI sensitive OF nodes. + * 2) When PCI emunation is done, we need do the binding between PCI device and + * the associated EEH device. + * 3) DR (Dynamic Reconfiguration) would create PCI sensitive OF node. EEH device + * will be created while PCI sensitive OF node is detected from DR. + * 4) PCI hotplug needs redoing the binding between PCI device and EEH device. If + * PHB is newly inserted, we also need create EEH devices accordingly. + * + * Copyright Benjamin Herrenschmidt & Gavin Shan, IBM Corporation 2012. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/export.h> +#include <linux/gfp.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/string.h> + +#include <asm/pci-bridge.h> +#include <asm/ppc-pci.h> + +/** + * eeh_dev_init - Create EEH device according to OF node + * @dn: device node + * @data: PHB + * + * It will create EEH device according to the given OF node. The function + * might be called by PCI emunation, DR, PHB hotplug. + */ +void * __devinit eeh_dev_init(struct device_node *dn, void *data) +{ + struct pci_controller *phb = data; + struct eeh_dev *edev; + + /* Allocate EEH device */ + edev = zalloc_maybe_bootmem(sizeof(*edev), GFP_KERNEL); + if (!edev) { + pr_warning("%s: out of memory\n", __func__); + return NULL; + } + + /* Associate EEH device with OF node */ + dn->edev = edev; + edev->dn = dn; + edev->phb = phb; + + return NULL; +} + +/** + * eeh_dev_phb_init_dynamic - Create EEH devices for devices included in PHB + * @phb: PHB + * + * Scan the PHB OF node and its child association, then create the + * EEH devices accordingly + */ +void __devinit eeh_dev_phb_init_dynamic(struct pci_controller *phb) +{ + struct device_node *dn = phb->dn; + + /* EEH device for PHB */ + eeh_dev_init(dn, phb); + + /* EEH devices for children OF nodes */ + traverse_pci_devices(dn, eeh_dev_init, phb); +} + +/** + * eeh_dev_phb_init - Create EEH devices for devices included in existing PHBs + * + * Scan all the existing PHBs and create EEH devices for their OF + * nodes and their children OF nodes + */ +void __init eeh_dev_phb_init(void) +{ + struct pci_controller *phb, *tmp; + + list_for_each_entry_safe(phb, tmp, &hose_list, list_node) + eeh_dev_phb_init_dynamic(phb); +} diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c index 1b6cb10..baf92cd 100644 --- a/arch/powerpc/platforms/pseries/eeh_driver.c +++ b/arch/powerpc/platforms/pseries/eeh_driver.c @@ -33,8 +33,14 @@ #include <asm/prom.h> #include <asm/rtas.h> - -static inline const char * pcid_name (struct pci_dev *pdev) +/** + * eeh_pcid_name - Retrieve name of PCI device driver + * @pdev: PCI device + * + * This routine is used to retrieve the name of PCI device driver + * if that's valid. + */ +static inline const char *eeh_pcid_name(struct pci_dev *pdev) { if (pdev && pdev->dev.driver) return pdev->dev.driver->name; @@ -64,48 +70,59 @@ static void print_device_node_tree(struct pci_dn *pdn, int dent) #endif /** - * eeh_disable_irq - disable interrupt for the recovering device + * eeh_disable_irq - Disable interrupt for the recovering device + * @dev: PCI device + * + * This routine must be called when reporting temporary or permanent + * error to the particular PCI device to disable interrupt of that + * device. If the device has enabled MSI or MSI-X interrupt, we needn't + * do real work because EEH should freeze DMA transfers for those PCI + * devices encountering EEH errors, which includes MSI or MSI-X. */ static void eeh_disable_irq(struct pci_dev *dev) { - struct device_node *dn = pci_device_to_OF_node(dev); + struct eeh_dev *edev = pci_dev_to_eeh_dev(dev); /* Don't disable MSI and MSI-X interrupts. They are * effectively disabled by the DMA Stopped state * when an EEH error occurs. - */ + */ if (dev->msi_enabled || dev->msix_enabled) return; if (!irq_has_action(dev->irq)) return; - PCI_DN(dn)->eeh_mode |= EEH_MODE_IRQ_DISABLED; + edev->mode |= EEH_MODE_IRQ_DISABLED; disable_irq_nosync(dev->irq); } /** - * eeh_enable_irq - enable interrupt for the recovering device + * eeh_enable_irq - Enable interrupt for the recovering device + * @dev: PCI device + * + * This routine must be called to enable interrupt while failed + * device could be resumed. */ static void eeh_enable_irq(struct pci_dev *dev) { - struct device_node *dn = pci_device_to_OF_node(dev); + struct eeh_dev *edev = pci_dev_to_eeh_dev(dev); - if ((PCI_DN(dn)->eeh_mode) & EEH_MODE_IRQ_DISABLED) { - PCI_DN(dn)->eeh_mode &= ~EEH_MODE_IRQ_DISABLED; + if ((edev->mode) & EEH_MODE_IRQ_DISABLED) { + edev->mode &= ~EEH_MODE_IRQ_DISABLED; enable_irq(dev->irq); } } -/* ------------------------------------------------------- */ /** - * eeh_report_error - report pci error to each device driver + * eeh_report_error - Report pci error to each device driver + * @dev: PCI device + * @userdata: return value * * Report an EEH error to each device driver, collect up and * merge the device driver responses. Cumulative response * passed back in "userdata". */ - static int eeh_report_error(struct pci_dev *dev, void *userdata) { enum pci_ers_result rc, *res = userdata; @@ -122,7 +139,7 @@ static int eeh_report_error(struct pci_dev *dev, void *userdata) !driver->err_handler->error_detected) return 0; - rc = driver->err_handler->error_detected (dev, pci_channel_io_frozen); + rc = driver->err_handler->error_detected(dev, pci_channel_io_frozen); /* A driver that needs a reset trumps all others */ if (rc == PCI_ERS_RESULT_NEED_RESET) *res = rc; @@ -132,13 +149,14 @@ static int eeh_report_error(struct pci_dev *dev, void *userdata) } /** - * eeh_report_mmio_enabled - tell drivers that MMIO has been enabled + * eeh_report_mmio_enabled - Tell drivers that MMIO has been enabled + * @dev: PCI device + * @userdata: return value * * Tells each device driver that IO ports, MMIO and config space I/O * are now enabled. Collects up and merges the device driver responses. * Cumulative response passed back in "userdata". */ - static int eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata) { enum pci_ers_result rc, *res = userdata; @@ -149,7 +167,7 @@ static int eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata) !driver->err_handler->mmio_enabled) return 0; - rc = driver->err_handler->mmio_enabled (dev); + rc = driver->err_handler->mmio_enabled(dev); /* A driver that needs a reset trumps all others */ if (rc == PCI_ERS_RESULT_NEED_RESET) *res = rc; @@ -159,9 +177,15 @@ static int eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata) } /** - * eeh_report_reset - tell device that slot has been reset + * eeh_report_reset - Tell device that slot has been reset + * @dev: PCI device + * @userdata: return value + * + * This routine must be called while EEH tries to reset particular + * PCI device so that the associated PCI device driver could take + * some actions, usually to save data the driver needs so that the + * driver can work again while the device is recovered. */ - static int eeh_report_reset(struct pci_dev *dev, void *userdata) { enum pci_ers_result rc, *res = userdata; @@ -188,9 +212,14 @@ static int eeh_report_reset(struct pci_dev *dev, void *userdata) } /** - * eeh_report_resume - tell device to resume normal operations + * eeh_report_resume - Tell device to resume normal operations + * @dev: PCI device + * @userdata: return value + * + * This routine must be called to notify the device driver that it + * could resume so that the device driver can do some initialization + * to make the recovered device work again. */ - static int eeh_report_resume(struct pci_dev *dev, void *userdata) { struct pci_driver *driver = dev->driver; @@ -212,12 +241,13 @@ static int eeh_report_resume(struct pci_dev *dev, void *userdata) } /** - * eeh_report_failure - tell device driver that device is dead. + * eeh_report_failure - Tell device driver that device is dead. + * @dev: PCI device + * @userdata: return value * * This informs the device driver that the device is permanently * dead, and that no further recovery attempts will be made on it. */ - static int eeh_report_failure(struct pci_dev *dev, void *userdata) { struct pci_driver *driver = dev->driver; @@ -238,65 +268,46 @@ static int eeh_report_failure(struct pci_dev *dev, void *userdata) return 0; } -/* ------------------------------------------------------- */ /** - * handle_eeh_events -- reset a PCI device after hard lockup. - * - * pSeries systems will isolate a PCI slot if the PCI-Host - * bridge detects address or data parity errors, DMA's - * occurring to wild addresses (which usually happen due to - * bugs in device drivers or in PCI adapter firmware). - * Slot isolations also occur if #SERR, #PERR or other misc - * PCI-related errors are detected. + * eeh_reset_device - Perform actual reset of a pci slot + * @edev: PE associated EEH device + * @bus: PCI bus corresponding to the isolcated slot * - * Recovery process consists of unplugging the device driver - * (which generated hotplug events to userspace), then issuing - * a PCI #RST to the device, then reconfiguring the PCI config - * space for all bridges & devices under this slot, and then - * finally restarting the device drivers (which cause a second - * set of hotplug events to go out to userspace). + * This routine must be called to do reset on the indicated PE. + * During the reset, udev might be invoked because those affected + * PCI devices will be removed and then added. */ - -/** - * eeh_reset_device() -- perform actual reset of a pci slot - * @bus: pointer to the pci bus structure corresponding - * to the isolated slot. A non-null value will - * cause all devices under the bus to be removed - * and then re-added. - * @pe_dn: pointer to a "Partionable Endpoint" device node. - * This is the top-level structure on which pci - * bus resets can be performed. - */ - -static int eeh_reset_device (struct pci_dn *pe_dn, struct pci_bus *bus) +static int eeh_reset_device(struct eeh_dev *edev, struct pci_bus *bus) { struct device_node *dn; int cnt, rc; /* pcibios will clear the counter; save the value */ - cnt = pe_dn->eeh_freeze_count; + cnt = edev->freeze_count; if (bus) pcibios_remove_pci_devices(bus); /* Reset the pci controller. (Asserts RST#; resets config space). * Reconfigure bridges and devices. Don't try to bring the system - * up if the reset failed for some reason. */ - rc = rtas_set_slot_reset(pe_dn); + * up if the reset failed for some reason. + */ + rc = eeh_reset_pe(edev); if (rc) return rc; - /* Walk over all functions on this device. */ - dn = pe_dn->node; - if (!pcibios_find_pci_bus(dn) && PCI_DN(dn->parent)) + /* Walk over all functions on this device. */ + dn = eeh_dev_to_of_node(edev); + if (!pcibios_find_pci_bus(dn) && of_node_to_eeh_dev(dn->parent)) dn = dn->parent->child; while (dn) { - struct pci_dn *ppe = PCI_DN(dn); + struct eeh_dev *pedev = of_node_to_eeh_dev(dn); + /* On Power4, always true because eeh_pe_config_addr=0 */ - if (pe_dn->eeh_pe_config_addr == ppe->eeh_pe_config_addr) { - rtas_configure_bridge(ppe); - eeh_restore_bars(ppe); + if (edev->pe_config_addr == pedev->pe_config_addr) { + eeh_ops->configure_bridge(dn); + eeh_restore_bars(pedev); } dn = dn->sibling; } @@ -308,10 +319,10 @@ static int eeh_reset_device (struct pci_dn *pe_dn, struct pci_bus *bus) * potentially weird things happen. */ if (bus) { - ssleep (5); + ssleep(5); pcibios_add_pci_devices(bus); } - pe_dn->eeh_freeze_count = cnt; + edev->freeze_count = cnt; return 0; } @@ -321,23 +332,39 @@ static int eeh_reset_device (struct pci_dn *pe_dn, struct pci_bus *bus) */ #define MAX_WAIT_FOR_RECOVERY 150 -struct pci_dn * handle_eeh_events (struct eeh_event *event) +/** + * eeh_handle_event - Reset a PCI device after hard lockup. + * @event: EEH event + * + * While PHB detects address or data parity errors on particular PCI + * slot, the associated PE will be frozen. Besides, DMA's occurring + * to wild addresses (which usually happen due to bugs in device + * drivers or in PCI adapter firmware) can cause EEH error. #SERR, + * #PERR or other misc PCI-related errors also can trigger EEH errors. + * + * Recovery process consists of unplugging the device driver (which + * generated hotplug events to userspace), then issuing a PCI #RST to + * the device, then reconfiguring the PCI config space for all bridges + * & devices under this slot, and then finally restarting the device + * drivers (which cause a second set of hotplug events to go out to + * userspace). + */ +struct eeh_dev *handle_eeh_events(struct eeh_event *event) { struct device_node *frozen_dn; - struct pci_dn *frozen_pdn; + struct eeh_dev *frozen_edev; struct pci_bus *frozen_bus; int rc = 0; enum pci_ers_result result = PCI_ERS_RESULT_NONE; const char *location, *pci_str, *drv_str, *bus_pci_str, *bus_drv_str; - frozen_dn = find_device_pe(event->dn); + frozen_dn = eeh_find_device_pe(eeh_dev_to_of_node(event->edev)); if (!frozen_dn) { - - location = of_get_property(event->dn, "ibm,loc-code", NULL); + location = of_get_property(eeh_dev_to_of_node(event->edev), "ibm,loc-code", NULL); location = location ? location : "unknown"; printk(KERN_ERR "EEH: Error: Cannot find partition endpoint " "for location=%s pci addr=%s\n", - location, eeh_pci_name(event->dev)); + location, eeh_pci_name(eeh_dev_to_pci_dev(event->edev))); return NULL; } @@ -350,9 +377,10 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) * which was always an EADS pci bridge. In the new style, * there might not be any EADS bridges, and even when there are, * the firmware marks them as "EEH incapable". So another - * two-step is needed to find the pci bus.. */ + * two-step is needed to find the pci bus.. + */ if (!frozen_bus) - frozen_bus = pcibios_find_pci_bus (frozen_dn->parent); + frozen_bus = pcibios_find_pci_bus(frozen_dn->parent); if (!frozen_bus) { printk(KERN_ERR "EEH: Cannot find PCI bus " @@ -361,22 +389,21 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) return NULL; } - frozen_pdn = PCI_DN(frozen_dn); - frozen_pdn->eeh_freeze_count++; + frozen_edev = of_node_to_eeh_dev(frozen_dn); + frozen_edev->freeze_count++; + pci_str = eeh_pci_name(eeh_dev_to_pci_dev(event->edev)); + drv_str = eeh_pcid_name(eeh_dev_to_pci_dev(event->edev)); - pci_str = eeh_pci_name(event->dev); - drv_str = pcid_name(event->dev); - - if (frozen_pdn->eeh_freeze_count > EEH_MAX_ALLOWED_FREEZES) + if (frozen_edev->freeze_count > EEH_MAX_ALLOWED_FREEZES) goto excess_failures; printk(KERN_WARNING "EEH: This PCI device has failed %d times in the last hour:\n", - frozen_pdn->eeh_freeze_count); + frozen_edev->freeze_count); - if (frozen_pdn->pcidev) { - bus_pci_str = pci_name(frozen_pdn->pcidev); - bus_drv_str = pcid_name(frozen_pdn->pcidev); + if (frozen_edev->pdev) { + bus_pci_str = pci_name(frozen_edev->pdev); + bus_drv_str = eeh_pcid_name(frozen_edev->pdev); printk(KERN_WARNING "EEH: Bus location=%s driver=%s pci addr=%s\n", location, bus_drv_str, bus_pci_str); @@ -395,9 +422,10 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) pci_walk_bus(frozen_bus, eeh_report_error, &result); /* Get the current PCI slot state. This can take a long time, - * sometimes over 3 seconds for certain systems. */ - rc = eeh_wait_for_slot_status (frozen_pdn, MAX_WAIT_FOR_RECOVERY*1000); - if (rc < 0) { + * sometimes over 3 seconds for certain systems. + */ + rc = eeh_ops->wait_state(eeh_dev_to_of_node(frozen_edev), MAX_WAIT_FOR_RECOVERY*1000); + if (rc < 0 || rc == EEH_STATE_NOT_SUPPORT) { printk(KERN_WARNING "EEH: Permanent failure\n"); goto hard_fail; } @@ -406,14 +434,14 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) * don't post the error log until after all dev drivers * have been informed. */ - eeh_slot_error_detail(frozen_pdn, EEH_LOG_TEMP_FAILURE); + eeh_slot_error_detail(frozen_edev, EEH_LOG_TEMP); /* If all device drivers were EEH-unaware, then shut * down all of the device drivers, and hope they * go down willingly, without panicing the system. */ if (result == PCI_ERS_RESULT_NONE) { - rc = eeh_reset_device(frozen_pdn, frozen_bus); + rc = eeh_reset_device(frozen_edev, frozen_bus); if (rc) { printk(KERN_WARNING "EEH: Unable to reset, rc=%d\n", rc); goto hard_fail; @@ -422,7 +450,7 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) /* If all devices reported they can proceed, then re-enable MMIO */ if (result == PCI_ERS_RESULT_CAN_RECOVER) { - rc = rtas_pci_enable(frozen_pdn, EEH_THAW_MMIO); + rc = eeh_pci_enable(frozen_edev, EEH_OPT_THAW_MMIO); if (rc < 0) goto hard_fail; @@ -436,7 +464,7 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) /* If all devices reported they can proceed, then re-enable DMA */ if (result == PCI_ERS_RESULT_CAN_RECOVER) { - rc = rtas_pci_enable(frozen_pdn, EEH_THAW_DMA); + rc = eeh_pci_enable(frozen_edev, EEH_OPT_THAW_DMA); if (rc < 0) goto hard_fail; @@ -454,7 +482,7 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) /* If any device called out for a reset, then reset the slot */ if (result == PCI_ERS_RESULT_NEED_RESET) { - rc = eeh_reset_device(frozen_pdn, NULL); + rc = eeh_reset_device(frozen_edev, NULL); if (rc) { printk(KERN_WARNING "EEH: Cannot reset, rc=%d\n", rc); goto hard_fail; @@ -473,7 +501,7 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) /* Tell all device drivers that they can resume operations */ pci_walk_bus(frozen_bus, eeh_report_resume, NULL); - return frozen_pdn; + return frozen_edev; excess_failures: /* @@ -486,7 +514,7 @@ excess_failures: "has failed %d times in the last hour " "and has been permanently disabled.\n" "Please try reseating this device or replacing it.\n", - location, drv_str, pci_str, frozen_pdn->eeh_freeze_count); + location, drv_str, pci_str, frozen_edev->freeze_count); goto perm_error; hard_fail: @@ -497,7 +525,7 @@ hard_fail: location, drv_str, pci_str); perm_error: - eeh_slot_error_detail(frozen_pdn, EEH_LOG_PERM_FAILURE); + eeh_slot_error_detail(frozen_edev, EEH_LOG_PERM); /* Notify all devices that they're about to go down. */ pci_walk_bus(frozen_bus, eeh_report_failure, NULL); @@ -508,4 +536,3 @@ perm_error: return NULL; } -/* ---------- end of file ---------- */ diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c index d2383cf..4a47525 100644 --- a/arch/powerpc/platforms/pseries/eeh_event.c +++ b/arch/powerpc/platforms/pseries/eeh_event.c @@ -1,6 +1,4 @@ /* - * eeh_event.c - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -46,7 +44,7 @@ DECLARE_WORK(eeh_event_wq, eeh_thread_launcher); DEFINE_MUTEX(eeh_event_mutex); /** - * eeh_event_handler - dispatch EEH events. + * eeh_event_handler - Dispatch EEH events. * @dummy - unused * * The detection of a frozen slot can occur inside an interrupt, @@ -58,10 +56,10 @@ DEFINE_MUTEX(eeh_event_mutex); static int eeh_event_handler(void * dummy) { unsigned long flags; - struct eeh_event *event; - struct pci_dn *pdn; + struct eeh_event *event; + struct eeh_dev *edev; - daemonize ("eehd"); + daemonize("eehd"); set_current_state(TASK_INTERRUPTIBLE); spin_lock_irqsave(&eeh_eventlist_lock, flags); @@ -79,31 +77,37 @@ static int eeh_event_handler(void * dummy) /* Serialize processing of EEH events */ mutex_lock(&eeh_event_mutex); - eeh_mark_slot(event->dn, EEH_MODE_RECOVERING); + edev = event->edev; + eeh_mark_slot(eeh_dev_to_of_node(edev), EEH_MODE_RECOVERING); printk(KERN_INFO "EEH: Detected PCI bus error on device %s\n", - eeh_pci_name(event->dev)); + eeh_pci_name(edev->pdev)); + + edev = handle_eeh_events(event); - pdn = handle_eeh_events(event); + eeh_clear_slot(eeh_dev_to_of_node(edev), EEH_MODE_RECOVERING); + pci_dev_put(edev->pdev); - eeh_clear_slot(event->dn, EEH_MODE_RECOVERING); - pci_dev_put(event->dev); kfree(event); mutex_unlock(&eeh_event_mutex); /* If there are no new errors after an hour, clear the counter. */ - if (pdn && pdn->eeh_freeze_count>0) { - msleep_interruptible (3600*1000); - if (pdn->eeh_freeze_count>0) - pdn->eeh_freeze_count--; + if (edev && edev->freeze_count>0) { + msleep_interruptible(3600*1000); + if (edev->freeze_count>0) + edev->freeze_count--; + } return 0; } /** - * eeh_thread_launcher + * eeh_thread_launcher - Start kernel thread to handle EEH events * @dummy - unused + * + * This routine is called to start the kernel thread for processing + * EEH event. */ static void eeh_thread_launcher(struct work_struct *dummy) { @@ -112,18 +116,18 @@ static void eeh_thread_launcher(struct work_struct *dummy) } /** - * eeh_send_failure_event - generate a PCI error event - * @dev pci device + * eeh_send_failure_event - Generate a PCI error event + * @edev: EEH device * * This routine can be called within an interrupt context; * the actual event will be delivered in a normal context * (from a workqueue). */ -int eeh_send_failure_event (struct device_node *dn, - struct pci_dev *dev) +int eeh_send_failure_event(struct eeh_dev *edev) { unsigned long flags; struct eeh_event *event; + struct device_node *dn = eeh_dev_to_of_node(edev); const char *location; if (!mem_init_done) { @@ -135,15 +139,14 @@ int eeh_send_failure_event (struct device_node *dn, } event = kmalloc(sizeof(*event), GFP_ATOMIC); if (event == NULL) { - printk (KERN_ERR "EEH: out of memory, event not handled\n"); + printk(KERN_ERR "EEH: out of memory, event not handled\n"); return 1; } - if (dev) - pci_dev_get(dev); + if (edev->pdev) + pci_dev_get(edev->pdev); - event->dn = dn; - event->dev = dev; + event->edev = edev; /* We may or may not be called in an interrupt context */ spin_lock_irqsave(&eeh_eventlist_lock, flags); @@ -154,5 +157,3 @@ int eeh_send_failure_event (struct device_node *dn, return 0; } - -/********************** END OF FILE ******************************/ diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c new file mode 100644 index 0000000..8752f79 --- /dev/null +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c @@ -0,0 +1,565 @@ +/* + * The file intends to implement the platform dependent EEH operations on pseries. + * Actually, the pseries platform is built based on RTAS heavily. That means the + * pseries platform dependent EEH operations will be built on RTAS calls. The functions + * are devired from arch/powerpc/platforms/pseries/eeh.c and necessary cleanup has + * been done. + * + * Copyright Benjamin Herrenschmidt & Gavin Shan, IBM Corporation 2011. + * Copyright IBM Corporation 2001, 2005, 2006 + * Copyright Dave Engebretsen & Todd Inglett 2001 + * Copyright Linas Vepstas 2005, 2006 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/atomic.h> +#include <linux/delay.h> +#include <linux/export.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/of.h> +#include <linux/pci.h> +#include <linux/proc_fs.h> +#include <linux/rbtree.h> +#include <linux/sched.h> +#include <linux/seq_file.h> +#include <linux/spinlock.h> + +#include <asm/eeh.h> +#include <asm/eeh_event.h> +#include <asm/io.h> +#include <asm/machdep.h> +#include <asm/ppc-pci.h> +#include <asm/rtas.h> + +/* RTAS tokens */ +static int ibm_set_eeh_option; +static int ibm_set_slot_reset; +static int ibm_read_slot_reset_state; +static int ibm_read_slot_reset_state2; +static int ibm_slot_error_detail; +static int ibm_get_config_addr_info; +static int ibm_get_config_addr_info2; +static int ibm_configure_bridge; +static int ibm_configure_pe; + +/* + * Buffer for reporting slot-error-detail rtas calls. Its here + * in BSS, and not dynamically alloced, so that it ends up in + * RMO where RTAS can access it. + */ +static unsigned char slot_errbuf[RTAS_ERROR_LOG_MAX]; +static DEFINE_SPINLOCK(slot_errbuf_lock); +static int eeh_error_buf_size; + +/** + * pseries_eeh_init - EEH platform dependent initialization + * + * EEH platform dependent initialization on pseries. + */ +static int pseries_eeh_init(void) +{ + /* figure out EEH RTAS function call tokens */ + ibm_set_eeh_option = rtas_token("ibm,set-eeh-option"); + ibm_set_slot_reset = rtas_token("ibm,set-slot-reset"); + ibm_read_slot_reset_state2 = rtas_token("ibm,read-slot-reset-state2"); + ibm_read_slot_reset_state = rtas_token("ibm,read-slot-reset-state"); + ibm_slot_error_detail = rtas_token("ibm,slot-error-detail"); + ibm_get_config_addr_info2 = rtas_token("ibm,get-config-addr-info2"); + ibm_get_config_addr_info = rtas_token("ibm,get-config-addr-info"); + ibm_configure_pe = rtas_token("ibm,configure-pe"); + ibm_configure_bridge = rtas_token ("ibm,configure-bridge"); + + /* necessary sanity check */ + if (ibm_set_eeh_option == RTAS_UNKNOWN_SERVICE) { + pr_warning("%s: RTAS service <ibm,set-eeh-option> invalid\n", + __func__); + return -EINVAL; + } else if (ibm_set_slot_reset == RTAS_UNKNOWN_SERVICE) { + pr_warning("%s: RTAS service <ibm, set-slot-reset> invalid\n", + __func__); + return -EINVAL; + } else if (ibm_read_slot_reset_state2 == RTAS_UNKNOWN_SERVICE && + ibm_read_slot_reset_state == RTAS_UNKNOWN_SERVICE) { + pr_warning("%s: RTAS service <ibm,read-slot-reset-state2> and " + "<ibm,read-slot-reset-state> invalid\n", + __func__); + return -EINVAL; + } else if (ibm_slot_error_detail == RTAS_UNKNOWN_SERVICE) { + pr_warning("%s: RTAS service <ibm,slot-error-detail> invalid\n", + __func__); + return -EINVAL; + } else if (ibm_get_config_addr_info2 == RTAS_UNKNOWN_SERVICE && + ibm_get_config_addr_info == RTAS_UNKNOWN_SERVICE) { + pr_warning("%s: RTAS service <ibm,get-config-addr-info2> and " + "<ibm,get-config-addr-info> invalid\n", + __func__); + return -EINVAL; + } else if (ibm_configure_pe == RTAS_UNKNOWN_SERVICE && + ibm_configure_bridge == RTAS_UNKNOWN_SERVICE) { + pr_warning("%s: RTAS service <ibm,configure-pe> and " + "<ibm,configure-bridge> invalid\n", + __func__); + return -EINVAL; + } + + /* Initialize error log lock and size */ + spin_lock_init(&slot_errbuf_lock); + eeh_error_buf_size = rtas_token("rtas-error-log-max"); + if (eeh_error_buf_size == RTAS_UNKNOWN_SERVICE) { + pr_warning("%s: unknown EEH error log size\n", + __func__); + eeh_error_buf_size = 1024; + } else if (eeh_error_buf_size > RTAS_ERROR_LOG_MAX) { + pr_warning("%s: EEH error log size %d exceeds the maximal %d\n", + __func__, eeh_error_buf_size, RTAS_ERROR_LOG_MAX); + eeh_error_buf_size = RTAS_ERROR_LOG_MAX; + } + + return 0; +} + +/** + * pseries_eeh_set_option - Initialize EEH or MMIO/DMA reenable + * @dn: device node + * @option: operation to be issued + * + * The function is used to control the EEH functionality globally. + * Currently, following options are support according to PAPR: + * Enable EEH, Disable EEH, Enable MMIO and Enable DMA + */ +static int pseries_eeh_set_option(struct device_node *dn, int option) +{ + int ret = 0; + struct eeh_dev *edev; + const u32 *reg; + int config_addr; + + edev = of_node_to_eeh_dev(dn); + + /* + * When we're enabling or disabling EEH functioality on + * the particular PE, the PE config address is possibly + * unavailable. Therefore, we have to figure it out from + * the FDT node. + */ + switch (option) { + case EEH_OPT_DISABLE: + case EEH_OPT_ENABLE: + reg = of_get_property(dn, "reg", NULL); + config_addr = reg[0]; + break; + + case EEH_OPT_THAW_MMIO: + case EEH_OPT_THAW_DMA: + config_addr = edev->config_addr; + if (edev->pe_config_addr) + config_addr = edev->pe_config_addr; + break; + + default: + pr_err("%s: Invalid option %d\n", + __func__, option); + return -EINVAL; + } + + ret = rtas_call(ibm_set_eeh_option, 4, 1, NULL, + config_addr, BUID_HI(edev->phb->buid), + BUID_LO(edev->phb->buid), option); + + return ret; +} + +/** + * pseries_eeh_get_pe_addr - Retrieve PE address + * @dn: device node + * + * Retrieve the assocated PE address. Actually, there're 2 RTAS + * function calls dedicated for the purpose. We need implement + * it through the new function and then the old one. Besides, + * you should make sure the config address is figured out from + * FDT node before calling the function. + * + * It's notable that zero'ed return value means invalid PE config + * address. + */ +static int pseries_eeh_get_pe_addr(struct device_node *dn) +{ + struct eeh_dev *edev; + int ret = 0; + int rets[3]; + + edev = of_node_to_eeh_dev(dn); + + if (ibm_get_config_addr_info2 != RTAS_UNKNOWN_SERVICE) { + /* + * First of all, we need to make sure there has one PE + * associated with the device. Otherwise, PE address is + * meaningless. + */ + ret = rtas_call(ibm_get_config_addr_info2, 4, 2, rets, + edev->config_addr, BUID_HI(edev->phb->buid), + BUID_LO(edev->phb->buid), 1); + if (ret || (rets[0] == 0)) + return 0; + + /* Retrieve the associated PE config address */ + ret = rtas_call(ibm_get_config_addr_info2, 4, 2, rets, + edev->config_addr, BUID_HI(edev->phb->buid), + BUID_LO(edev->phb->buid), 0); + if (ret) { + pr_warning("%s: Failed to get PE address for %s\n", + __func__, dn->full_name); + return 0; + } + + return rets[0]; + } + + if (ibm_get_config_addr_info != RTAS_UNKNOWN_SERVICE) { + ret = rtas_call(ibm_get_config_addr_info, 4, 2, rets, + edev->config_addr, BUID_HI(edev->phb->buid), + BUID_LO(edev->phb->buid), 0); + if (ret) { + pr_warning("%s: Failed to get PE address for %s\n", + __func__, dn->full_name); + return 0; + } + + return rets[0]; + } + + return ret; +} + +/** + * pseries_eeh_get_state - Retrieve PE state + * @dn: PE associated device node + * @state: return value + * + * Retrieve the state of the specified PE. On RTAS compliant + * pseries platform, there already has one dedicated RTAS function + * for the purpose. It's notable that the associated PE config address + * might be ready when calling the function. Therefore, endeavour to + * use the PE config address if possible. Further more, there're 2 + * RTAS calls for the purpose, we need to try the new one and back + * to the old one if the new one couldn't work properly. + */ +static int pseries_eeh_get_state(struct device_node *dn, int *state) +{ + struct eeh_dev *edev; + int config_addr; + int ret; + int rets[4]; + int result; + + /* Figure out PE config address if possible */ + edev = of_node_to_eeh_dev(dn); + config_addr = edev->config_addr; + if (edev->pe_config_addr) + config_addr = edev->pe_config_addr; + + if (ibm_read_slot_reset_state2 != RTAS_UNKNOWN_SERVICE) { + ret = rtas_call(ibm_read_slot_reset_state2, 3, 4, rets, + config_addr, BUID_HI(edev->phb->buid), + BUID_LO(edev->phb->buid)); + } else if (ibm_read_slot_reset_state != RTAS_UNKNOWN_SERVICE) { + /* Fake PE unavailable info */ + rets[2] = 0; + ret = rtas_call(ibm_read_slot_reset_state, 3, 3, rets, + config_addr, BUID_HI(edev->phb->buid), + BUID_LO(edev->phb->buid)); + } else { + return EEH_STATE_NOT_SUPPORT; + } + + if (ret) + return ret; + + /* Parse the result out */ + result = 0; + if (rets[1]) { + switch(rets[0]) { + case 0: + result &= ~EEH_STATE_RESET_ACTIVE; + result |= EEH_STATE_MMIO_ACTIVE; + result |= EEH_STATE_DMA_ACTIVE; + break; + case 1: + result |= EEH_STATE_RESET_ACTIVE; + result |= EEH_STATE_MMIO_ACTIVE; + result |= EEH_STATE_DMA_ACTIVE; + break; + case 2: + result &= ~EEH_STATE_RESET_ACTIVE; + result &= ~EEH_STATE_MMIO_ACTIVE; + result &= ~EEH_STATE_DMA_ACTIVE; + break; + case 4: + result &= ~EEH_STATE_RESET_ACTIVE; + result &= ~EEH_STATE_MMIO_ACTIVE; + result &= ~EEH_STATE_DMA_ACTIVE; + result |= EEH_STATE_MMIO_ENABLED; + break; + case 5: + if (rets[2]) { + if (state) *state = rets[2]; + result = EEH_STATE_UNAVAILABLE; + } else { + result = EEH_STATE_NOT_SUPPORT; + } + default: + result = EEH_STATE_NOT_SUPPORT; + } + } else { + result = EEH_STATE_NOT_SUPPORT; + } + + return result; +} + +/** + * pseries_eeh_reset - Reset the specified PE + * @dn: PE associated device node + * @option: reset option + * + * Reset the specified PE + */ +static int pseries_eeh_reset(struct device_node *dn, int option) +{ + struct eeh_dev *edev; + int config_addr; + int ret; + + /* Figure out PE address */ + edev = of_node_to_eeh_dev(dn); + config_addr = edev->config_addr; + if (edev->pe_config_addr) + config_addr = edev->pe_config_addr; + + /* Reset PE through RTAS call */ + ret = rtas_call(ibm_set_slot_reset, 4, 1, NULL, + config_addr, BUID_HI(edev->phb->buid), + BUID_LO(edev->phb->buid), option); + + /* If fundamental-reset not supported, try hot-reset */ + if (option == EEH_RESET_FUNDAMENTAL && + ret == -8) { + ret = rtas_call(ibm_set_slot_reset, 4, 1, NULL, + config_addr, BUID_HI(edev->phb->buid), + BUID_LO(edev->phb->buid), EEH_RESET_HOT); + } + + return ret; +} + +/** + * pseries_eeh_wait_state - Wait for PE state + * @dn: PE associated device node + * @max_wait: maximal period in microsecond + * + * Wait for the state of associated PE. It might take some time + * to retrieve the PE's state. + */ +static int pseries_eeh_wait_state(struct device_node *dn, int max_wait) +{ + int ret; + int mwait; + + /* + * According to PAPR, the state of PE might be temporarily + * unavailable. Under the circumstance, we have to wait + * for indicated time determined by firmware. The maximal + * wait time is 5 minutes, which is acquired from the original + * EEH implementation. Also, the original implementation + * also defined the minimal wait time as 1 second. + */ +#define EEH_STATE_MIN_WAIT_TIME (1000) +#define EEH_STATE_MAX_WAIT_TIME (300 * 1000) + + while (1) { + ret = pseries_eeh_get_state(dn, &mwait); + + /* + * If the PE's state is temporarily unavailable, + * we have to wait for the specified time. Otherwise, + * the PE's state will be returned immediately. + */ + if (ret != EEH_STATE_UNAVAILABLE) + return ret; + + if (max_wait <= 0) { + pr_warning("%s: Timeout when getting PE's state (%d)\n", + __func__, max_wait); + return EEH_STATE_NOT_SUPPORT; + } + + if (mwait <= 0) { + pr_warning("%s: Firmware returned bad wait value %d\n", + __func__, mwait); + mwait = EEH_STATE_MIN_WAIT_TIME; + } else if (mwait > EEH_STATE_MAX_WAIT_TIME) { + pr_warning("%s: Firmware returned too long wait value %d\n", + __func__, mwait); + mwait = EEH_STATE_MAX_WAIT_TIME; + } + + max_wait -= mwait; + msleep(mwait); + } + + return EEH_STATE_NOT_SUPPORT; +} + +/** + * pseries_eeh_get_log - Retrieve error log + * @dn: device node + * @severity: temporary or permanent error log + * @drv_log: driver log to be combined with retrieved error log + * @len: length of driver log + * + * Retrieve the temporary or permanent error from the PE. + * Actually, the error will be retrieved through the dedicated + * RTAS call. + */ +static int pseries_eeh_get_log(struct device_node *dn, int severity, char *drv_log, unsigned long len) +{ + struct eeh_dev *edev; + int config_addr; + unsigned long flags; + int ret; + + edev = of_node_to_eeh_dev(dn); + spin_lock_irqsave(&slot_errbuf_lock, flags); + memset(slot_errbuf, 0, eeh_error_buf_size); + + /* Figure out the PE address */ + config_addr = edev->config_addr; + if (edev->pe_config_addr) + config_addr = edev->pe_config_addr; + + ret = rtas_call(ibm_slot_error_detail, 8, 1, NULL, config_addr, + BUID_HI(edev->phb->buid), BUID_LO(edev->phb->buid), + virt_to_phys(drv_log), len, + virt_to_phys(slot_errbuf), eeh_error_buf_size, + severity); + if (!ret) + log_error(slot_errbuf, ERR_TYPE_RTAS_LOG, 0); + spin_unlock_irqrestore(&slot_errbuf_lock, flags); + + return ret; +} + +/** + * pseries_eeh_configure_bridge - Configure PCI bridges in the indicated PE + * @dn: PE associated device node + * + * The function will be called to reconfigure the bridges included + * in the specified PE so that the mulfunctional PE would be recovered + * again. + */ +static int pseries_eeh_configure_bridge(struct device_node *dn) +{ + struct eeh_dev *edev; + int config_addr; + int ret; + + /* Figure out the PE address */ + edev = of_node_to_eeh_dev(dn); + config_addr = edev->config_addr; + if (edev->pe_config_addr) + config_addr = edev->pe_config_addr; + + /* Use new configure-pe function, if supported */ + if (ibm_configure_pe != RTAS_UNKNOWN_SERVICE) { + ret = rtas_call(ibm_configure_pe, 3, 1, NULL, + config_addr, BUID_HI(edev->phb->buid), + BUID_LO(edev->phb->buid)); + } else if (ibm_configure_bridge != RTAS_UNKNOWN_SERVICE) { + ret = rtas_call(ibm_configure_bridge, 3, 1, NULL, + config_addr, BUID_HI(edev->phb->buid), + BUID_LO(edev->phb->buid)); + } else { + return -EFAULT; + } + + if (ret) + pr_warning("%s: Unable to configure bridge %d for %s\n", + __func__, ret, dn->full_name); + + return ret; +} + +/** + * pseries_eeh_read_config - Read PCI config space + * @dn: device node + * @where: PCI address + * @size: size to read + * @val: return value + * + * Read config space from the speicifed device + */ +static int pseries_eeh_read_config(struct device_node *dn, int where, int size, u32 *val) +{ + struct pci_dn *pdn; + + pdn = PCI_DN(dn); + + return rtas_read_config(pdn, where, size, val); +} + +/** + * pseries_eeh_write_config - Write PCI config space + * @dn: device node + * @where: PCI address + * @size: size to write + * @val: value to be written + * + * Write config space to the specified device + */ +static int pseries_eeh_write_config(struct device_node *dn, int where, int size, u32 val) +{ + struct pci_dn *pdn; + + pdn = PCI_DN(dn); + + return rtas_write_config(pdn, where, size, val); +} + +static struct eeh_ops pseries_eeh_ops = { + .name = "pseries", + .init = pseries_eeh_init, + .set_option = pseries_eeh_set_option, + .get_pe_addr = pseries_eeh_get_pe_addr, + .get_state = pseries_eeh_get_state, + .reset = pseries_eeh_reset, + .wait_state = pseries_eeh_wait_state, + .get_log = pseries_eeh_get_log, + .configure_bridge = pseries_eeh_configure_bridge, + .read_config = pseries_eeh_read_config, + .write_config = pseries_eeh_write_config +}; + +/** + * eeh_pseries_init - Register platform dependent EEH operations + * + * EEH initialization on pseries platform. This function should be + * called before any EEH related functions. + */ +int __init eeh_pseries_init(void) +{ + return eeh_ops_register(&pseries_eeh_ops); +} diff --git a/arch/powerpc/platforms/pseries/eeh_sysfs.c b/arch/powerpc/platforms/pseries/eeh_sysfs.c index eb744ee..243b351 100644 --- a/arch/powerpc/platforms/pseries/eeh_sysfs.c +++ b/arch/powerpc/platforms/pseries/eeh_sysfs.c @@ -28,7 +28,7 @@ #include <asm/pci-bridge.h> /** - * EEH_SHOW_ATTR -- create sysfs entry for eeh statistic + * EEH_SHOW_ATTR -- Create sysfs entry for eeh statistic * @_name: name of file in sysfs directory * @_memb: name of member in struct pci_dn to access * @_format: printf format for display @@ -41,24 +41,21 @@ static ssize_t eeh_show_##_name(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ struct pci_dev *pdev = to_pci_dev(dev); \ - struct device_node *dn = pci_device_to_OF_node(pdev); \ - struct pci_dn *pdn; \ + struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev); \ \ - if (!dn || PCI_DN(dn) == NULL) \ - return 0; \ + if (!edev) \ + return 0; \ \ - pdn = PCI_DN(dn); \ - return sprintf(buf, _format "\n", pdn->_memb); \ + return sprintf(buf, _format "\n", edev->_memb); \ } \ static DEVICE_ATTR(_name, S_IRUGO, eeh_show_##_name, NULL); - -EEH_SHOW_ATTR(eeh_mode, eeh_mode, "0x%x"); -EEH_SHOW_ATTR(eeh_config_addr, eeh_config_addr, "0x%x"); -EEH_SHOW_ATTR(eeh_pe_config_addr, eeh_pe_config_addr, "0x%x"); -EEH_SHOW_ATTR(eeh_check_count, eeh_check_count, "%d"); -EEH_SHOW_ATTR(eeh_freeze_count, eeh_freeze_count, "%d"); -EEH_SHOW_ATTR(eeh_false_positives, eeh_false_positives, "%d"); +EEH_SHOW_ATTR(eeh_mode, mode, "0x%x"); +EEH_SHOW_ATTR(eeh_config_addr, config_addr, "0x%x"); +EEH_SHOW_ATTR(eeh_pe_config_addr, pe_config_addr, "0x%x"); +EEH_SHOW_ATTR(eeh_check_count, check_count, "%d" ); +EEH_SHOW_ATTR(eeh_freeze_count, freeze_count, "%d" ); +EEH_SHOW_ATTR(eeh_false_positives, false_positives, "%d" ); void eeh_sysfs_add_device(struct pci_dev *pdev) { diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 7bc73af..5f3ef87 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -41,6 +41,7 @@ #include <asm/udbg.h> #include <asm/smp.h> #include <asm/trace.h> +#include <asm/firmware.h> #include "plpar_wrappers.h" #include "pseries.h" diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c index 38d24e7..109fdb7 100644 --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c @@ -217,7 +217,7 @@ static struct device_node *find_pe_dn(struct pci_dev *dev, int *total) if (!dn) return NULL; - dn = find_device_pe(dn); + dn = eeh_find_device_pe(dn); if (!dn) return NULL; diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c index 55d4ec1..fbb21fc 100644 --- a/arch/powerpc/platforms/pseries/pci_dlpar.c +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c @@ -147,6 +147,9 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn) pci_devs_phb_init_dynamic(phb); + /* Create EEH devices for the PHB */ + eeh_dev_phb_init_dynamic(phb); + if (dn->child) eeh_add_device_tree_early(dn); diff --git a/arch/powerpc/platforms/pseries/phyp_dump.c b/arch/powerpc/platforms/pseries/phyp_dump.c deleted file mode 100644 index 6e7742d..0000000 --- a/arch/powerpc/platforms/pseries/phyp_dump.c +++ /dev/null @@ -1,513 +0,0 @@ -/* - * Hypervisor-assisted dump - * - * Linas Vepstas, Manish Ahuja 2008 - * Copyright 2008 IBM Corp. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - */ - -#include <linux/gfp.h> -#include <linux/init.h> -#include <linux/kobject.h> -#include <linux/mm.h> -#include <linux/of.h> -#include <linux/pfn.h> -#include <linux/swap.h> -#include <linux/sysfs.h> - -#include <asm/page.h> -#include <asm/phyp_dump.h> -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/rtas.h> - -/* Variables, used to communicate data between early boot and late boot */ -static struct phyp_dump phyp_dump_vars; -struct phyp_dump *phyp_dump_info = &phyp_dump_vars; - -static int ibm_configure_kernel_dump; -/* ------------------------------------------------- */ -/* RTAS interfaces to declare the dump regions */ - -struct dump_section { - u32 dump_flags; - u16 source_type; - u16 error_flags; - u64 source_address; - u64 source_length; - u64 length_copied; - u64 destination_address; -}; - -struct phyp_dump_header { - u32 version; - u16 num_of_sections; - u16 status; - - u32 first_offset_section; - u32 dump_disk_section; - u64 block_num_dd; - u64 num_of_blocks_dd; - u32 offset_dd; - u32 maxtime_to_auto; - /* No dump disk path string used */ - - struct dump_section cpu_data; - struct dump_section hpte_data; - struct dump_section kernel_data; -}; - -/* The dump header *must be* in low memory, so .bss it */ -static struct phyp_dump_header phdr; - -#define NUM_DUMP_SECTIONS 3 -#define DUMP_HEADER_VERSION 0x1 -#define DUMP_REQUEST_FLAG 0x1 -#define DUMP_SOURCE_CPU 0x0001 -#define DUMP_SOURCE_HPTE 0x0002 -#define DUMP_SOURCE_RMO 0x0011 -#define DUMP_ERROR_FLAG 0x2000 -#define DUMP_TRIGGERED 0x4000 -#define DUMP_PERFORMED 0x8000 - - -/** - * init_dump_header() - initialize the header declaring a dump - * Returns: length of dump save area. - * - * When the hypervisor saves crashed state, it needs to put - * it somewhere. The dump header tells the hypervisor where - * the data can be saved. - */ -static unsigned long init_dump_header(struct phyp_dump_header *ph) -{ - unsigned long addr_offset = 0; - - /* Set up the dump header */ - ph->version = DUMP_HEADER_VERSION; - ph->num_of_sections = NUM_DUMP_SECTIONS; - ph->status = 0; - - ph->first_offset_section = - (u32)offsetof(struct phyp_dump_header, cpu_data); - ph->dump_disk_section = 0; - ph->block_num_dd = 0; - ph->num_of_blocks_dd = 0; - ph->offset_dd = 0; - - ph->maxtime_to_auto = 0; /* disabled */ - - /* The first two sections are mandatory */ - ph->cpu_data.dump_flags = DUMP_REQUEST_FLAG; - ph->cpu_data.source_type = DUMP_SOURCE_CPU; - ph->cpu_data.source_address = 0; - ph->cpu_data.source_length = phyp_dump_info->cpu_state_size; - ph->cpu_data.destination_address = addr_offset; - addr_offset += phyp_dump_info->cpu_state_size; - - ph->hpte_data.dump_flags = DUMP_REQUEST_FLAG; - ph->hpte_data.source_type = DUMP_SOURCE_HPTE; - ph->hpte_data.source_address = 0; - ph->hpte_data.source_length = phyp_dump_info->hpte_region_size; - ph->hpte_data.destination_address = addr_offset; - addr_offset += phyp_dump_info->hpte_region_size; - - /* This section describes the low kernel region */ - ph->kernel_data.dump_flags = DUMP_REQUEST_FLAG; - ph->kernel_data.source_type = DUMP_SOURCE_RMO; - ph->kernel_data.source_address = PHYP_DUMP_RMR_START; - ph->kernel_data.source_length = PHYP_DUMP_RMR_END; - ph->kernel_data.destination_address = addr_offset; - addr_offset += ph->kernel_data.source_length; - - return addr_offset; -} - -static void print_dump_header(const struct phyp_dump_header *ph) -{ -#ifdef DEBUG - if (ph == NULL) - return; - - printk(KERN_INFO "dump header:\n"); - /* setup some ph->sections required */ - printk(KERN_INFO "version = %d\n", ph->version); - printk(KERN_INFO "Sections = %d\n", ph->num_of_sections); - printk(KERN_INFO "Status = 0x%x\n", ph->status); - - /* No ph->disk, so all should be set to 0 */ - printk(KERN_INFO "Offset to first section 0x%x\n", - ph->first_offset_section); - printk(KERN_INFO "dump disk sections should be zero\n"); - printk(KERN_INFO "dump disk section = %d\n", ph->dump_disk_section); - printk(KERN_INFO "block num = %lld\n", ph->block_num_dd); - printk(KERN_INFO "number of blocks = %lld\n", ph->num_of_blocks_dd); - printk(KERN_INFO "dump disk offset = %d\n", ph->offset_dd); - printk(KERN_INFO "Max auto time= %d\n", ph->maxtime_to_auto); - - /*set cpu state and hpte states as well scratch pad area */ - printk(KERN_INFO " CPU AREA\n"); - printk(KERN_INFO "cpu dump_flags =%d\n", ph->cpu_data.dump_flags); - printk(KERN_INFO "cpu source_type =%d\n", ph->cpu_data.source_type); - printk(KERN_INFO "cpu error_flags =%d\n", ph->cpu_data.error_flags); - printk(KERN_INFO "cpu source_address =%llx\n", - ph->cpu_data.source_address); - printk(KERN_INFO "cpu source_length =%llx\n", - ph->cpu_data.source_length); - printk(KERN_INFO "cpu length_copied =%llx\n", - ph->cpu_data.length_copied); - - printk(KERN_INFO " HPTE AREA\n"); - printk(KERN_INFO "HPTE dump_flags =%d\n", ph->hpte_data.dump_flags); - printk(KERN_INFO "HPTE source_type =%d\n", ph->hpte_data.source_type); - printk(KERN_INFO "HPTE error_flags =%d\n", ph->hpte_data.error_flags); - printk(KERN_INFO "HPTE source_address =%llx\n", - ph->hpte_data.source_address); - printk(KERN_INFO "HPTE source_length =%llx\n", - ph->hpte_data.source_length); - printk(KERN_INFO "HPTE length_copied =%llx\n", - ph->hpte_data.length_copied); - - printk(KERN_INFO " SRSD AREA\n"); - printk(KERN_INFO "SRSD dump_flags =%d\n", ph->kernel_data.dump_flags); - printk(KERN_INFO "SRSD source_type =%d\n", ph->kernel_data.source_type); - printk(KERN_INFO "SRSD error_flags =%d\n", ph->kernel_data.error_flags); - printk(KERN_INFO "SRSD source_address =%llx\n", - ph->kernel_data.source_address); - printk(KERN_INFO "SRSD source_length =%llx\n", - ph->kernel_data.source_length); - printk(KERN_INFO "SRSD length_copied =%llx\n", - ph->kernel_data.length_copied); -#endif -} - -static ssize_t show_phyp_dump_active(struct kobject *kobj, - struct kobj_attribute *attr, char *buf) -{ - - /* create filesystem entry so kdump is phyp-dump aware */ - return sprintf(buf, "%lx\n", phyp_dump_info->phyp_dump_at_boot); -} - -static struct kobj_attribute pdl = __ATTR(phyp_dump_active, 0600, - show_phyp_dump_active, - NULL); - -static void register_dump_area(struct phyp_dump_header *ph, unsigned long addr) -{ - int rc; - - /* Add addr value if not initialized before */ - if (ph->cpu_data.destination_address == 0) { - ph->cpu_data.destination_address += addr; - ph->hpte_data.destination_address += addr; - ph->kernel_data.destination_address += addr; - } - - /* ToDo Invalidate kdump and free memory range. */ - - do { - rc = rtas_call(ibm_configure_kernel_dump, 3, 1, NULL, - 1, ph, sizeof(struct phyp_dump_header)); - } while (rtas_busy_delay(rc)); - - if (rc) { - printk(KERN_ERR "phyp-dump: unexpected error (%d) on " - "register\n", rc); - print_dump_header(ph); - return; - } - - rc = sysfs_create_file(kernel_kobj, &pdl.attr); - if (rc) - printk(KERN_ERR "phyp-dump: unable to create sysfs" - " file (%d)\n", rc); -} - -static -void invalidate_last_dump(struct phyp_dump_header *ph, unsigned long addr) -{ - int rc; - - /* Add addr value if not initialized before */ - if (ph->cpu_data.destination_address == 0) { - ph->cpu_data.destination_address += addr; - ph->hpte_data.destination_address += addr; - ph->kernel_data.destination_address += addr; - } - - do { - rc = rtas_call(ibm_configure_kernel_dump, 3, 1, NULL, - 2, ph, sizeof(struct phyp_dump_header)); - } while (rtas_busy_delay(rc)); - - if (rc) { - printk(KERN_ERR "phyp-dump: unexpected error (%d) " - "on invalidate\n", rc); - print_dump_header(ph); - } -} - -/* ------------------------------------------------- */ -/** - * release_memory_range -- release memory previously memblock_reserved - * @start_pfn: starting physical frame number - * @nr_pages: number of pages to free. - * - * This routine will release memory that had been previously - * memblock_reserved in early boot. The released memory becomes - * available for genreal use. - */ -static void release_memory_range(unsigned long start_pfn, - unsigned long nr_pages) -{ - struct page *rpage; - unsigned long end_pfn; - long i; - - end_pfn = start_pfn + nr_pages; - - for (i = start_pfn; i <= end_pfn; i++) { - rpage = pfn_to_page(i); - if (PageReserved(rpage)) { - ClearPageReserved(rpage); - init_page_count(rpage); - __free_page(rpage); - totalram_pages++; - } - } -} - -/** - * track_freed_range -- Counts the range being freed. - * Once the counter goes to zero, it re-registers dump for - * future use. - */ -static void -track_freed_range(unsigned long addr, unsigned long length) -{ - static unsigned long scratch_area_size, reserved_area_size; - - if (addr < phyp_dump_info->init_reserve_start) - return; - - if ((addr >= phyp_dump_info->init_reserve_start) && - (addr <= phyp_dump_info->init_reserve_start + - phyp_dump_info->init_reserve_size)) - reserved_area_size += length; - - if ((addr >= phyp_dump_info->reserved_scratch_addr) && - (addr <= phyp_dump_info->reserved_scratch_addr + - phyp_dump_info->reserved_scratch_size)) - scratch_area_size += length; - - if ((reserved_area_size == phyp_dump_info->init_reserve_size) && - (scratch_area_size == phyp_dump_info->reserved_scratch_size)) { - - invalidate_last_dump(&phdr, - phyp_dump_info->reserved_scratch_addr); - register_dump_area(&phdr, - phyp_dump_info->reserved_scratch_addr); - } -} - -/* ------------------------------------------------- */ -/** - * sysfs_release_region -- sysfs interface to release memory range. - * - * Usage: - * "echo <start addr> <length> > /sys/kernel/release_region" - * - * Example: - * "echo 0x40000000 0x10000000 > /sys/kernel/release_region" - * - * will release 256MB starting at 1GB. - */ -static ssize_t store_release_region(struct kobject *kobj, - struct kobj_attribute *attr, - const char *buf, size_t count) -{ - unsigned long start_addr, length, end_addr; - unsigned long start_pfn, nr_pages; - ssize_t ret; - - ret = sscanf(buf, "%lx %lx", &start_addr, &length); - if (ret != 2) - return -EINVAL; - - track_freed_range(start_addr, length); - - /* Range-check - don't free any reserved memory that - * wasn't reserved for phyp-dump */ - if (start_addr < phyp_dump_info->init_reserve_start) - start_addr = phyp_dump_info->init_reserve_start; - - end_addr = phyp_dump_info->init_reserve_start + - phyp_dump_info->init_reserve_size; - if (start_addr+length > end_addr) - length = end_addr - start_addr; - - /* Release the region of memory assed in by user */ - start_pfn = PFN_DOWN(start_addr); - nr_pages = PFN_DOWN(length); - release_memory_range(start_pfn, nr_pages); - - return count; -} - -static ssize_t show_release_region(struct kobject *kobj, - struct kobj_attribute *attr, char *buf) -{ - u64 second_addr_range; - - /* total reserved size - start of scratch area */ - second_addr_range = phyp_dump_info->init_reserve_size - - phyp_dump_info->reserved_scratch_size; - return sprintf(buf, "CPU:0x%llx-0x%llx: HPTE:0x%llx-0x%llx:" - " DUMP:0x%llx-0x%llx, 0x%lx-0x%llx:\n", - phdr.cpu_data.destination_address, - phdr.cpu_data.length_copied, - phdr.hpte_data.destination_address, - phdr.hpte_data.length_copied, - phdr.kernel_data.destination_address, - phdr.kernel_data.length_copied, - phyp_dump_info->init_reserve_start, - second_addr_range); -} - -static struct kobj_attribute rr = __ATTR(release_region, 0600, - show_release_region, - store_release_region); - -static int __init phyp_dump_setup(void) -{ - struct device_node *rtas; - const struct phyp_dump_header *dump_header = NULL; - unsigned long dump_area_start; - unsigned long dump_area_length; - int header_len = 0; - int rc; - - /* If no memory was reserved in early boot, there is nothing to do */ - if (phyp_dump_info->init_reserve_size == 0) - return 0; - - /* Return if phyp dump not supported */ - if (!phyp_dump_info->phyp_dump_configured) - return -ENOSYS; - - /* Is there dump data waiting for us? If there isn't, - * then register a new dump area, and release all of - * the rest of the reserved ram. - * - * The /rtas/ibm,kernel-dump rtas node is present only - * if there is dump data waiting for us. - */ - rtas = of_find_node_by_path("/rtas"); - if (rtas) { - dump_header = of_get_property(rtas, "ibm,kernel-dump", - &header_len); - of_node_put(rtas); - } - - ibm_configure_kernel_dump = rtas_token("ibm,configure-kernel-dump"); - - print_dump_header(dump_header); - dump_area_length = init_dump_header(&phdr); - /* align down */ - dump_area_start = phyp_dump_info->init_reserve_start & PAGE_MASK; - - if (dump_header == NULL) { - register_dump_area(&phdr, dump_area_start); - return 0; - } - - /* re-register the dump area, if old dump was invalid */ - if ((dump_header) && (dump_header->status & DUMP_ERROR_FLAG)) { - invalidate_last_dump(&phdr, dump_area_start); - register_dump_area(&phdr, dump_area_start); - return 0; - } - - if (dump_header) { - phyp_dump_info->reserved_scratch_addr = - dump_header->cpu_data.destination_address; - phyp_dump_info->reserved_scratch_size = - dump_header->cpu_data.source_length + - dump_header->hpte_data.source_length + - dump_header->kernel_data.source_length; - } - - /* Should we create a dump_subsys, analogous to s390/ipl.c ? */ - rc = sysfs_create_file(kernel_kobj, &rr.attr); - if (rc) - printk(KERN_ERR "phyp-dump: unable to create sysfs file (%d)\n", - rc); - - /* ToDo: re-register the dump area, for next time. */ - return 0; -} -machine_subsys_initcall(pseries, phyp_dump_setup); - -int __init early_init_dt_scan_phyp_dump(unsigned long node, - const char *uname, int depth, void *data) -{ - const unsigned int *sizes; - - phyp_dump_info->phyp_dump_configured = 0; - phyp_dump_info->phyp_dump_is_active = 0; - - if (depth != 1 || strcmp(uname, "rtas") != 0) - return 0; - - if (of_get_flat_dt_prop(node, "ibm,configure-kernel-dump", NULL)) - phyp_dump_info->phyp_dump_configured++; - - if (of_get_flat_dt_prop(node, "ibm,dump-kernel", NULL)) - phyp_dump_info->phyp_dump_is_active++; - - sizes = of_get_flat_dt_prop(node, "ibm,configure-kernel-dump-sizes", - NULL); - if (!sizes) - return 0; - - if (sizes[0] == 1) - phyp_dump_info->cpu_state_size = *((unsigned long *)&sizes[1]); - - if (sizes[3] == 2) - phyp_dump_info->hpte_region_size = - *((unsigned long *)&sizes[4]); - return 1; -} - -/* Look for phyp_dump= cmdline option */ -static int __init early_phyp_dump_enabled(char *p) -{ - phyp_dump_info->phyp_dump_at_boot = 1; - - if (!p) - return 0; - - if (strncmp(p, "1", 1) == 0) - phyp_dump_info->phyp_dump_at_boot = 1; - else if (strncmp(p, "0", 1) == 0) - phyp_dump_info->phyp_dump_at_boot = 0; - - return 0; -} -early_param("phyp_dump", early_phyp_dump_enabled); - -/* Look for phyp_dump_reserve_size= cmdline option */ -static int __init early_phyp_dump_reserve_size(char *p) -{ - if (p) - phyp_dump_info->reserve_bootvar = memparse(p, &p); - - return 0; -} -early_param("phyp_dump_reserve_size", early_phyp_dump_reserve_size); diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c index 085fd3f..a12e95a 100644 --- a/arch/powerpc/platforms/pseries/processor_idle.c +++ b/arch/powerpc/platforms/pseries/processor_idle.c @@ -96,6 +96,20 @@ out: return index; } +static void check_and_cede_processor(void) +{ + /* + * Interrupts are soft-disabled at this point, + * but not hard disabled. So an interrupt might have + * occurred before entering NAP, and would be potentially + * lost (edge events, decrementer events, etc...) unless + * we first hard disable then check. + */ + hard_irq_disable(); + if (get_paca()->irq_happened == 0) + cede_processor(); +} + static int dedicated_cede_loop(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) @@ -108,7 +122,7 @@ static int dedicated_cede_loop(struct cpuidle_device *dev, ppc64_runlatch_off(); HMT_medium(); - cede_processor(); + check_and_cede_processor(); get_lppaca()->donate_dedicated_cpu = 0; dev->last_residency = @@ -132,7 +146,7 @@ static int shared_cede_loop(struct cpuidle_device *dev, * processor. When returning here, external interrupts * are enabled. */ - cede_processor(); + check_and_cede_processor(); dev->last_residency = (int)idle_loop_epilog(in_purr, kt_before); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index f79f127..8f137af 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -190,9 +190,8 @@ static void __init pseries_mpic_init_IRQ(void) BUG_ON(openpic_addr == 0); /* Setup the openpic driver */ - mpic = mpic_alloc(pSeries_mpic_node, openpic_addr, 0, - 16, 250, /* isu size, irq count */ - " MPIC "); + mpic = mpic_alloc(pSeries_mpic_node, openpic_addr, + MPIC_NO_RESET, 16, 0, " MPIC "); BUG_ON(mpic == NULL); /* Add ISUs */ @@ -261,8 +260,12 @@ static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long act switch (action) { case PSERIES_RECONFIG_ADD: pci = np->parent->data; - if (pci) + if (pci) { update_dn_pci_info(np, pci->phb); + + /* Create EEH device for the OF node */ + eeh_dev_init(np, pci->phb); + } break; default: err = NOTIFY_DONE; @@ -382,6 +385,7 @@ static void __init pSeries_setup_arch(void) /* Find and initialize PCI host bridges */ init_pci_config_tokens(); + eeh_pseries_init(); find_and_init_phbs(); pSeries_reconfig_notifier_register(&pci_dn_reconfig_nb); eeh_init(); |
