diff options
Diffstat (limited to 'sys/alpha/pci/tsunami.c')
| -rw-r--r-- | sys/alpha/pci/tsunami.c | 417 |
1 files changed, 0 insertions, 417 deletions
diff --git a/sys/alpha/pci/tsunami.c b/sys/alpha/pci/tsunami.c deleted file mode 100644 index d09bfcb..0000000 --- a/sys/alpha/pci/tsunami.c +++ /dev/null @@ -1,417 +0,0 @@ -/*- - * Copyright (c) 1999 Andrew Gallatin - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "opt_cpu.h" - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/module.h> -#include <sys/mutex.h> -#include <sys/bus.h> -#include <machine/bus.h> -#include <sys/proc.h> -#include <sys/rman.h> -#include <sys/interrupt.h> -#include <sys/malloc.h> - -#include <dev/pci/pcivar.h> -#include <alpha/isa/isavar.h> -#include <alpha/pci/tsunamireg.h> -#include <alpha/pci/tsunamivar.h> - -#include <machine/bwx.h> -#include <machine/cpuconf.h> -#include <machine/intr.h> -#include <machine/intrcnt.h> -#include <machine/md_var.h> -#include <machine/resource.h> -#include <machine/rpb.h> -#include <machine/sgmap.h> - -#include <vm/vm.h> -#include <vm/vm_page.h> - -#define KV(pa) ALPHA_PHYS_TO_K0SEG(pa) - -static devclass_t tsunami_devclass; -static device_t tsunami0; /* XXX only one for now */ - -struct tsunami_softc { - int junk; /* no softc */ -}; - -int tsunami_num_pchips = 0; -static volatile tsunami_pchip *pchip[2] = {pchip0, pchip1}; - -#define TSUNAMI_SOFTC(dev) (struct tsunami_softc*) device_get_softc(dev) - -static alpha_chipset_read_hae_t tsunami_read_hae; -static alpha_chipset_write_hae_t tsunami_write_hae; - -static alpha_chipset_t tsunami_chipset = { - tsunami_read_hae, - tsunami_write_hae, -}; - -static void tsunami_intr_enable(int); -static void tsunami_intr_disable(int); - -/* - * There doesn't appear to be an hae on this platform - */ - - -static u_int64_t -tsunami_read_hae(void) -{ - return 0; -} - -static void -tsunami_write_hae(u_int64_t hae) -{ -} - -static int tsunami_probe(device_t dev); -static int tsunami_attach(device_t dev); -static int tsunami_setup_intr(device_t dev, device_t child, - struct resource *irq, int flags, - driver_intr_t *intr, void *arg, void **cookiep); -static int tsunami_teardown_intr(device_t dev, device_t child, - struct resource *irq, void *cookie); - -static device_method_t tsunami_methods[] = { - /* Device interface */ - DEVMETHOD(device_probe, tsunami_probe), - DEVMETHOD(device_attach, tsunami_attach), - - /* Bus interface */ - DEVMETHOD(bus_print_child, bus_generic_print_child), - DEVMETHOD(bus_setup_intr, tsunami_setup_intr), - DEVMETHOD(bus_teardown_intr, tsunami_teardown_intr), - - { 0, 0 } -}; - -static driver_t tsunami_driver = { - "tsunami", - tsunami_methods, - sizeof(struct tsunami_softc), -}; - -static void -pchip_init(volatile tsunami_pchip *pchip, int index) -{ - - int i; - - /* - * initialize the direct map DMA windows. - * - * leave window 0 untouched; we'll set that up for S/G DMA for - * isa devices later in the boot process - * - * window 1 goes at 2GB and has a length of 1 GB. It maps - * physical address 0 - 1GB. The SRM console typically sets - * this window up here. - */ - - pchip->wsba[1].reg = (2UL*1024*1024*1024) | WINDOW_ENABLE; - pchip->wsm[1].reg = (1UL*1024*1024*1024 - 1) & 0xfff00000UL; - pchip->tba[1].reg = 0; - - /* - * window 2 goes at 3GB and has a length of 1 GB. It maps - * physical address 1GB-2GB. - */ - - pchip->wsba[2].reg = (3UL*1024*1024*1024) | WINDOW_ENABLE; - pchip->wsm[2].reg = (1UL*1024*1024*1024 - 1) & 0xfff00000UL; - pchip->tba[2].reg = 1UL*1024*1024*1024; - - /* - * window 3 is disabled. The SRM console typically leaves it - * disabled - */ - - pchip->wsba[3].reg = 0; - alpha_mb(); - - if(bootverbose) { - printf("pchip%d:\n", index); - for (i = 0; i < 4; i++) { - printf("\twsba[%d].reg = 0x%lx\n", - i, pchip->wsba[i].reg); - printf("\t wsm[%d].reg = 0x%lx\n", - i, pchip->wsm[i].reg); - printf("\t tba[%d].reg = 0x%lx\n", - i, pchip->tba[i].reg); - } - } -} - -#define TSUNAMI_SGMAP_BASE (8*1024*1024) -#define TSUNAMI_SGMAP_SIZE (8*1024*1024) - -static void -tsunami_sgmap_invalidate(void) -{ - alpha_mb(); - switch (tsunami_num_pchips) { - case 2: - pchip[1]->tlbia.reg = (u_int64_t)0; - case 1: - pchip[0]->tlbia.reg = (u_int64_t)0; - } - alpha_mb(); -} - -static void -tsunami_sgmap_map(void *arg, bus_addr_t ba, vm_offset_t pa) -{ - u_int64_t *sgtable = arg; - int index = alpha_btop(ba - TSUNAMI_SGMAP_BASE); - - if (pa) { - if (pa > (1L<<32)) - panic("tsunami_sgmap_map: can't map address 0x%lx", pa); - sgtable[index] = ((pa >> 13) << 1) | 1; - } else { - sgtable[index] = 0; - } - alpha_mb(); - tsunami_sgmap_invalidate(); -} - - -static void -tsunami_init_sgmap(void) -{ - void *sgtable; - int i; - - sgtable = contigmalloc(8192, M_DEVBUF, M_NOWAIT, - 0, (1L<<34), - 32*1024, (1L<<34)); - if (!sgtable) - panic("tsunami_init_sgmap: can't allocate page table"); - - for(i=0; i < tsunami_num_pchips; i++){ - pchip[i]->tba[0].reg = - pmap_kextract((vm_offset_t) sgtable); - pchip[i]->wsba[0].reg |= WINDOW_ENABLE | WINDOW_SCATTER_GATHER; - } - - chipset.sgmap = sgmap_map_create(TSUNAMI_SGMAP_BASE, - TSUNAMI_SGMAP_BASE + TSUNAMI_SGMAP_SIZE, - tsunami_sgmap_map, sgtable); - chipset.pci_sgmap = NULL; -} - -void -tsunami_init() -{ - static int initted = 0; - static struct bwx_space io_space; - static struct bwx_space mem_space; - - if (initted) return; - initted = 1; - - /* - * Define two temporary spaces for bootstrap i/o on hose 0. - */ - bwx_init_space(&io_space, KV(TSUNAMI_IO(0))); - bwx_init_space(&mem_space, KV(TSUNAMI_MEM(0))); - - busspace_isa_io = (struct alpha_busspace *) &io_space; - busspace_isa_mem = (struct alpha_busspace *) &mem_space; - - chipset = tsunami_chipset; - platform.pci_intr_enable = tsunami_intr_enable; - platform.pci_intr_disable = tsunami_intr_disable; - chipset.dmsize = 2UL * 1024UL * 1024UL * 1024UL; - chipset.dmoffset = 2UL * 1024UL * 1024UL * 1024UL; - - if (platform.pci_intr_init) - platform.pci_intr_init(); -} - -static int -tsunami_probe(device_t dev) -{ - device_t child; - int i; - if (tsunami0) - return ENXIO; - tsunami0 = dev; - device_set_desc(dev, "21271 Core Logic chipset"); - if(cchip->csc.reg & CSC_P1P) - tsunami_num_pchips = 2; - else - tsunami_num_pchips = 1; - - isa_init_intr(); - - for(i = 0; i < tsunami_num_pchips; i++) { - child = device_add_child(dev, "pcib", i); - pchip_init(pchip[i], i); - } - - return 0; -} - -static int -tsunami_attach(device_t dev) -{ - tsunami_init(); - - if (!platform.iointr) /* XXX */ - set_iointr(alpha_dispatch_intr); - - snprintf(chipset_type, sizeof(chipset_type), "tsunami"); - chipset_bwx = 1; - - chipset_ports = TSUNAMI_IO(0); - chipset_memory = TSUNAMI_MEM(0); - chipset_dense = TSUNAMI_MEM(0); - bus_generic_attach(dev); - tsunami_init_sgmap(); - - return 0; -} - -static void -tsunami_disable_intr_vec(uintptr_t vector) -{ - int irq; - - irq = (vector - 0x900) >> 4; - mtx_lock_spin(&icu_lock); - platform.pci_intr_disable(irq); - mtx_unlock_spin(&icu_lock); -} - -static void -tsunami_enable_intr_vec(uintptr_t vector) -{ - int irq; - - irq = (vector - 0x900) >> 4; - mtx_lock_spin(&icu_lock); - platform.pci_intr_enable(irq); - mtx_unlock_spin(&icu_lock); -} - -static int -tsunami_setup_intr(device_t dev, device_t child, - struct resource *irq, int flags, - driver_intr_t *intr, void *arg, void **cookiep) -{ - int error, start; - - error = rman_activate_resource(irq); - if (error) - return error; - - start = rman_get_start(irq); - - error = alpha_setup_intr(device_get_nameunit(child ? child : dev), - 0x900 + (start << 4), intr, arg, flags, cookiep, - &intrcnt[INTRCNT_EB164_IRQ + start], - tsunami_disable_intr_vec, tsunami_enable_intr_vec); - if (error) - return error; - - /* Enable PCI interrupt */ - mtx_lock_spin(&icu_lock); - platform.pci_intr_enable(start); - mtx_unlock_spin(&icu_lock); - - device_printf(child, "interrupting at TSUNAMI irq %d\n", start); - - return 0; -} - -static int -tsunami_teardown_intr(device_t dev, device_t child, - struct resource *irq, void *cookie) -{ - - alpha_teardown_intr(cookie); - return rman_deactivate_resource(irq); - -} - - -/* - * Currently, all interrupts will be funneled through CPU 0 - */ - -static void -tsunami_intr_enable(int irq) -{ - volatile u_int64_t *mask; - u_int64_t saved_mask; - - mask = &cchip->dim0.reg; - saved_mask = *mask; - - saved_mask |= (1UL << (unsigned long)irq); - *mask = saved_mask; - alpha_mb(); - alpha_mb(); - saved_mask = *mask; - alpha_mb(); - alpha_mb(); -} - -static void -tsunami_intr_disable(int irq) -{ - volatile u_int64_t *mask; - u_int64_t saved_mask; - - mask = &cchip->dim0.reg; - saved_mask = *mask; - - saved_mask &= ~(1UL << (unsigned long)irq); - *mask = saved_mask; - alpha_mb(); - saved_mask = *mask; - alpha_mb(); - alpha_mb(); -} - - - -DRIVER_MODULE(tsunami, root, tsunami_driver, tsunami_devclass, 0, 0); - |
