powerpc: move pSeries files to arch/powerpc/platforms/pseries

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 622 deletions

diff --git a/arch/ppc64/kernel/pSeries_setup.c b/arch/ppc64/kernel/pSeries_setup.c
deleted file mode 100644
index 5a9fe96..0000000
--- a/arch/ppc64/kernel/pSeries_setup.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/*
- *  linux/arch/ppc/kernel/setup.c
- *
- *  Copyright (C) 1995  Linus Torvalds
- *  Adapted from 'alpha' version by Gary Thomas
- *  Modified by Cort Dougan (cort@cs.nmt.edu)
- *  Modified by PPC64 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.
- */
-
-/*
- * bootup setup stuff..
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/cpu.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/tty.h>
-#include <linux/major.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/console.h>
-#include <linux/pci.h>
-#include <linux/utsname.h>
-#include <linux/adb.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-
-#include <asm/mmu.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/prom.h>
-#include <asm/rtas.h>
-#include <asm/pci-bridge.h>
-#include <asm/iommu.h>
-#include <asm/dma.h>
-#include <asm/machdep.h>
-#include <asm/irq.h>
-#include <asm/time.h>
-#include <asm/nvram.h>
-#include <asm/plpar_wrappers.h>
-#include <asm/xics.h>
-#include <asm/firmware.h>
-#include <asm/pmc.h>
-#include <asm/mpic.h>
-#include <asm/ppc-pci.h>
-
-#include "i8259.h"
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-extern void find_udbg_vterm(void);
-extern void system_reset_fwnmi(void);	/* from head.S */
-extern void machine_check_fwnmi(void);	/* from head.S */
-extern void generic_find_legacy_serial_ports(u64 *physport,
-		unsigned int *default_speed);
-
-int fwnmi_active;  /* TRUE if an FWNMI handler is present */
-
-extern void pSeries_system_reset_exception(struct pt_regs *regs);
-extern int pSeries_machine_check_exception(struct pt_regs *regs);
-
-static int pseries_shared_idle(void);
-static int pseries_dedicated_idle(void);
-
-static volatile void __iomem * chrp_int_ack_special;
-struct mpic *pSeries_mpic;
-
-void pSeries_get_cpuinfo(struct seq_file *m)
-{
-	struct device_node *root;
-	const char *model = "";
-
-	root = of_find_node_by_path("/");
-	if (root)
-		model = get_property(root, "model", NULL);
-	seq_printf(m, "machine\t\t: CHRP %s\n", model);
-	of_node_put(root);
-}
-
-/* Initialize firmware assisted non-maskable interrupts if
- * the firmware supports this feature.
- *
- */
-static void __init fwnmi_init(void)
-{
-	int ret;
-	int ibm_nmi_register = rtas_token("ibm,nmi-register");
-	if (ibm_nmi_register == RTAS_UNKNOWN_SERVICE)
-		return;
-	ret = rtas_call(ibm_nmi_register, 2, 1, NULL,
-			__pa((unsigned long)system_reset_fwnmi),
-			__pa((unsigned long)machine_check_fwnmi));
-	if (ret == 0)
-		fwnmi_active = 1;
-}
-
-static int pSeries_irq_cascade(struct pt_regs *regs, void *data)
-{
-	if (chrp_int_ack_special)
-		return readb(chrp_int_ack_special);
-	else
-		return i8259_irq(smp_processor_id());
-}
-
-static void __init pSeries_init_mpic(void)
-{
-        unsigned int *addrp;
-	struct device_node *np;
-        int i;
-
-	/* All ISUs are setup, complete initialization */
-	mpic_init(pSeries_mpic);
-
-	/* Check what kind of cascade ACK we have */
-        if (!(np = of_find_node_by_name(NULL, "pci"))
-            || !(addrp = (unsigned int *)
-                 get_property(np, "8259-interrupt-acknowledge", NULL)))
-                printk(KERN_ERR "Cannot find pci to get ack address\n");
-        else
-		chrp_int_ack_special = ioremap(addrp[prom_n_addr_cells(np)-1], 1);
-	of_node_put(np);
-
-	/* Setup the legacy interrupts & controller */
-        for (i = 0; i < NUM_ISA_INTERRUPTS; i++)
-                irq_desc[i].handler = &i8259_pic;
-	i8259_init(0);
-
-	/* Hook cascade to mpic */
-	mpic_setup_cascade(NUM_ISA_INTERRUPTS, pSeries_irq_cascade, NULL);
-}
-
-static void __init pSeries_setup_mpic(void)
-{
-	unsigned int *opprop;
-	unsigned long openpic_addr = 0;
-        unsigned char senses[NR_IRQS - NUM_ISA_INTERRUPTS];
-        struct device_node *root;
-	int irq_count;
-
-	/* Find the Open PIC if present */
-	root = of_find_node_by_path("/");
-	opprop = (unsigned int *) get_property(root, "platform-open-pic", NULL);
-	if (opprop != 0) {
-		int n = prom_n_addr_cells(root);
-
-		for (openpic_addr = 0; n > 0; --n)
-			openpic_addr = (openpic_addr << 32) + *opprop++;
-		printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
-	}
-	of_node_put(root);
-
-	BUG_ON(openpic_addr == 0);
-
-	/* Get the sense values from OF */
-	prom_get_irq_senses(senses, NUM_ISA_INTERRUPTS, NR_IRQS);
-	
-	/* Setup the openpic driver */
-	irq_count = NR_IRQS - NUM_ISA_INTERRUPTS - 4; /* leave room for IPIs */
-	pSeries_mpic = mpic_alloc(openpic_addr, MPIC_PRIMARY,
-				  16, 16, irq_count, /* isu size, irq offset, irq count */ 
-				  NR_IRQS - 4, /* ipi offset */
-				  senses, irq_count, /* sense & sense size */
-				  " MPIC     ");
-}
-
-static void pseries_lpar_enable_pmcs(void)
-{
-	unsigned long set, reset;
-
-	power4_enable_pmcs();
-
-	set = 1UL << 63;
-	reset = 0;
-	plpar_hcall_norets(H_PERFMON, set, reset);
-
-	/* instruct hypervisor to maintain PMCs */
-	if (firmware_has_feature(FW_FEATURE_SPLPAR))
-		get_paca()->lppaca.pmcregs_in_use = 1;
-}
-
-static void __init pSeries_setup_arch(void)
-{
-	/* Fixup ppc_md depending on the type of interrupt controller */
-	if (ppc64_interrupt_controller == IC_OPEN_PIC) {
-		ppc_md.init_IRQ       = pSeries_init_mpic;
-		ppc_md.get_irq        = mpic_get_irq;
-	 	ppc_md.cpu_irq_down   = mpic_teardown_this_cpu;
-		/* Allocate the mpic now, so that find_and_init_phbs() can
-		 * fill the ISUs */
-		pSeries_setup_mpic();
-	} else {
-		ppc_md.init_IRQ       = xics_init_IRQ;
-		ppc_md.get_irq        = xics_get_irq;
-		ppc_md.cpu_irq_down   = xics_teardown_cpu;
-	}
-
-#ifdef CONFIG_SMP
-	smp_init_pSeries();
-#endif
-	/* openpic global configuration register (64-bit format). */
-	/* openpic Interrupt Source Unit pointer (64-bit format). */
-	/* python0 facility area (mmio) (64-bit format) REAL address. */
-
-	/* init to some ~sane value until calibrate_delay() runs */
-	loops_per_jiffy = 50000000;
-
-	if (ROOT_DEV == 0) {
-		printk("No ramdisk, default root is /dev/sda2\n");
-		ROOT_DEV = Root_SDA2;
-	}
-
-	fwnmi_init();
-
-	/* Find and initialize PCI host bridges */
-	init_pci_config_tokens();
-	find_and_init_phbs();
-	eeh_init();
-
-#ifdef CONFIG_DUMMY_CONSOLE
-	conswitchp = &dummy_con;
-#endif
-
-	pSeries_nvram_init();
-
-	/* Choose an idle loop */
-	if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
-		vpa_init(boot_cpuid);
-		if (get_paca()->lppaca.shared_proc) {
-			printk(KERN_INFO "Using shared processor idle loop\n");
-			ppc_md.idle_loop = pseries_shared_idle;
-		} else {
-			printk(KERN_INFO "Using dedicated idle loop\n");
-			ppc_md.idle_loop = pseries_dedicated_idle;
-		}
-	} else {
-		printk(KERN_INFO "Using default idle loop\n");
-		ppc_md.idle_loop = default_idle;
-	}
-
-	if (systemcfg->platform & PLATFORM_LPAR)
-		ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
-	else
-		ppc_md.enable_pmcs = power4_enable_pmcs;
-}
-
-static int __init pSeries_init_panel(void)
-{
-	/* Manually leave the kernel version on the panel. */
-	ppc_md.progress("Linux ppc64\n", 0);
-	ppc_md.progress(system_utsname.version, 0);
-
-	return 0;
-}
-arch_initcall(pSeries_init_panel);
-
-
-/* Build up the ppc64_firmware_features bitmask field
- * using contents of device-tree/ibm,hypertas-functions.
- * Ultimately this functionality may be moved into prom.c prom_init().
- */
-static void __init fw_feature_init(void)
-{
-	struct device_node * dn;
-	char * hypertas;
-	unsigned int len;
-
-	DBG(" -> fw_feature_init()\n");
-
-	ppc64_firmware_features = 0;
-	dn = of_find_node_by_path("/rtas");
-	if (dn == NULL) {
-		printk(KERN_ERR "WARNING ! Cannot find RTAS in device-tree !\n");
-		goto no_rtas;
-	}
-
-	hypertas = get_property(dn, "ibm,hypertas-functions", &len);
-	if (hypertas) {
-		while (len > 0){
-			int i, hypertas_len;
-			/* check value against table of strings */
-			for(i=0; i < FIRMWARE_MAX_FEATURES ;i++) {
-				if ((firmware_features_table[i].name) &&
-				    (strcmp(firmware_features_table[i].name,hypertas))==0) {
-					/* we have a match */
-					ppc64_firmware_features |= 
-						(firmware_features_table[i].val);
-					break;
-				} 
-			}
-			hypertas_len = strlen(hypertas);
-			len -= hypertas_len +1;
-			hypertas+= hypertas_len +1;
-		}
-	}
-
-	of_node_put(dn);
- no_rtas:
-	printk(KERN_INFO "firmware_features = 0x%lx\n", 
-	       ppc64_firmware_features);
-
-	DBG(" <- fw_feature_init()\n");
-}
-
-
-static  void __init pSeries_discover_pic(void)
-{
-	struct device_node *np;
-	char *typep;
-
-	/*
-	 * Setup interrupt mapping options that are needed for finish_device_tree
-	 * to properly parse the OF interrupt tree & do the virtual irq mapping
-	 */
-	__irq_offset_value = NUM_ISA_INTERRUPTS;
-	ppc64_interrupt_controller = IC_INVALID;
-	for (np = NULL; (np = of_find_node_by_name(np, "interrupt-controller"));) {
-		typep = (char *)get_property(np, "compatible", NULL);
-		if (strstr(typep, "open-pic"))
-			ppc64_interrupt_controller = IC_OPEN_PIC;
-		else if (strstr(typep, "ppc-xicp"))
-			ppc64_interrupt_controller = IC_PPC_XIC;
-		else
-			printk("pSeries_discover_pic: failed to recognize"
-			       " interrupt-controller\n");
-		break;
-	}
-}
-
-static void pSeries_mach_cpu_die(void)
-{
-	local_irq_disable();
-	idle_task_exit();
-	/* Some hardware requires clearing the CPPR, while other hardware does not
-	 * it is safe either way
-	 */
-	pSeriesLP_cppr_info(0, 0);
-	rtas_stop_self();
-	/* Should never get here... */
-	BUG();
-	for(;;);
-}
-
-
-/*
- * Early initialization.  Relocation is on but do not reference unbolted pages
- */
-static void __init pSeries_init_early(void)
-{
-	void *comport;
-	int iommu_off = 0;
-	unsigned int default_speed;
-	u64 physport;
-
-	DBG(" -> pSeries_init_early()\n");
-
-	fw_feature_init();
-	
-	if (systemcfg->platform & PLATFORM_LPAR)
-		hpte_init_lpar();
-	else {
-		hpte_init_native();
-		iommu_off = (of_chosen &&
-			     get_property(of_chosen, "linux,iommu-off", NULL));
-	}
-
-	generic_find_legacy_serial_ports(&physport, &default_speed);
-
-	if (systemcfg->platform & PLATFORM_LPAR)
-		find_udbg_vterm();
-	else if (physport) {
-		/* Map the uart for udbg. */
-		comport = (void *)ioremap(physport, 16);
-		udbg_init_uart(comport, default_speed);
-
-		DBG("Hello World !\n");
-	}
-
-
-	iommu_init_early_pSeries();
-
-	pSeries_discover_pic();
-
-	DBG(" <- pSeries_init_early()\n");
-}
-
-
-static int pSeries_check_legacy_ioport(unsigned int baseport)
-{
-	struct device_node *np;
-
-#define I8042_DATA_REG	0x60
-#define FDC_BASE	0x3f0
-
-
-	switch(baseport) {
-	case I8042_DATA_REG:
-		np = of_find_node_by_type(NULL, "8042");
-		if (np == NULL)
-			return -ENODEV;
-		of_node_put(np);
-		break;
-	case FDC_BASE:
-		np = of_find_node_by_type(NULL, "fdc");
-		if (np == NULL)
-			return -ENODEV;
-		of_node_put(np);
-		break;
-	}
-	return 0;
-}
-
-/*
- * Called very early, MMU is off, device-tree isn't unflattened
- */
-extern struct machdep_calls pSeries_md;
-
-static int __init pSeries_probe(int platform)
-{
-	if (platform != PLATFORM_PSERIES &&
-	    platform != PLATFORM_PSERIES_LPAR)
-		return 0;
-
-	/* if we have some ppc_md fixups for LPAR to do, do
-	 * it here ...
-	 */
-
-	return 1;
-}
-
-DECLARE_PER_CPU(unsigned long, smt_snooze_delay);
-
-static inline void dedicated_idle_sleep(unsigned int cpu)
-{
-	struct paca_struct *ppaca = &paca[cpu ^ 1];
-
-	/* Only sleep if the other thread is not idle */
-	if (!(ppaca->lppaca.idle)) {
-		local_irq_disable();
-
-		/*
-		 * We are about to sleep the thread and so wont be polling any
-		 * more.
-		 */
-		clear_thread_flag(TIF_POLLING_NRFLAG);
-
-		/*
-		 * SMT dynamic mode. Cede will result in this thread going
-		 * dormant, if the partner thread is still doing work.  Thread
-		 * wakes up if partner goes idle, an interrupt is presented, or
-		 * a prod occurs.  Returning from the cede enables external
-		 * interrupts.
-		 */
-		if (!need_resched())
-			cede_processor();
-		else
-			local_irq_enable();
-	} else {
-		/*
-		 * Give the HV an opportunity at the processor, since we are
-		 * not doing any work.
-		 */
-		poll_pending();
-	}
-}
-
-static int pseries_dedicated_idle(void)
-{
-	long oldval;
-	struct paca_struct *lpaca = get_paca();
-	unsigned int cpu = smp_processor_id();
-	unsigned long start_snooze;
-	unsigned long *smt_snooze_delay = &__get_cpu_var(smt_snooze_delay);
-
-	while (1) {
-		/*
-		 * Indicate to the HV that we are idle. Now would be
-		 * a good time to find other work to dispatch.
-		 */
-		lpaca->lppaca.idle = 1;
-
-		oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED);
-		if (!oldval) {
-			set_thread_flag(TIF_POLLING_NRFLAG);
-
-			start_snooze = __get_tb() +
-				*smt_snooze_delay * tb_ticks_per_usec;
-
-			while (!need_resched() && !cpu_is_offline(cpu)) {
-				ppc64_runlatch_off();
-
-				/*
-				 * Go into low thread priority and possibly
-				 * low power mode.
-				 */
-				HMT_low();
-				HMT_very_low();
-
-				if (*smt_snooze_delay != 0 &&
-				    __get_tb() > start_snooze) {
-					HMT_medium();
-					dedicated_idle_sleep(cpu);
-				}
-
-			}
-
-			HMT_medium();
-			clear_thread_flag(TIF_POLLING_NRFLAG);
-		} else {
-			set_need_resched();
-		}
-
-		lpaca->lppaca.idle = 0;
-		ppc64_runlatch_on();
-
-		schedule();
-
-		if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
-			cpu_die();
-	}
-}
-
-static int pseries_shared_idle(void)
-{
-	struct paca_struct *lpaca = get_paca();
-	unsigned int cpu = smp_processor_id();
-
-	while (1) {
-		/*
-		 * Indicate to the HV that we are idle. Now would be
-		 * a good time to find other work to dispatch.
-		 */
-		lpaca->lppaca.idle = 1;
-
-		while (!need_resched() && !cpu_is_offline(cpu)) {
-			local_irq_disable();
-			ppc64_runlatch_off();
-
-			/*
-			 * Yield the processor to the hypervisor.  We return if
-			 * an external interrupt occurs (which are driven prior
-			 * to returning here) or if a prod occurs from another
-			 * processor. When returning here, external interrupts
-			 * are enabled.
-			 *
-			 * Check need_resched() again with interrupts disabled
-			 * to avoid a race.
-			 */
-			if (!need_resched())
-				cede_processor();
-			else
-				local_irq_enable();
-
-			HMT_medium();
-		}
-
-		lpaca->lppaca.idle = 0;
-		ppc64_runlatch_on();
-
-		schedule();
-
-		if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
-			cpu_die();
-	}
-
-	return 0;
-}
-
-static int pSeries_pci_probe_mode(struct pci_bus *bus)
-{
-	if (systemcfg->platform & PLATFORM_LPAR)
-		return PCI_PROBE_DEVTREE;
-	return PCI_PROBE_NORMAL;
-}
-
-struct machdep_calls __initdata pSeries_md = {
-	.probe			= pSeries_probe,
-	.setup_arch		= pSeries_setup_arch,
-	.init_early		= pSeries_init_early,
-	.get_cpuinfo		= pSeries_get_cpuinfo,
-	.log_error		= pSeries_log_error,
-	.pcibios_fixup		= pSeries_final_fixup,
-	.pci_probe_mode		= pSeries_pci_probe_mode,
-	.irq_bus_setup		= pSeries_irq_bus_setup,
-	.restart		= rtas_restart,
-	.power_off		= rtas_power_off,
-	.halt			= rtas_halt,
-	.panic			= rtas_os_term,
-	.cpu_die		= pSeries_mach_cpu_die,
-	.get_boot_time		= rtas_get_boot_time,
-	.get_rtc_time		= rtas_get_rtc_time,
-	.set_rtc_time		= rtas_set_rtc_time,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= rtas_progress,
-	.check_legacy_ioport	= pSeries_check_legacy_ioport,
-	.system_reset_exception = pSeries_system_reset_exception,
-	.machine_check_exception = pSeries_machine_check_exception,
-};