mirror of https://gitee.com/openkylin/linux.git
789 lines
20 KiB
C
789 lines
20 KiB
C
/*
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* Copyright 2001-2003 SuSE Labs.
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* Distributed under the GNU public license, v2.
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*
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* This is a GART driver for the AMD Opteron/Athlon64 on-CPU northbridge.
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* It also includes support for the AMD 8151 AGP bridge,
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* although it doesn't actually do much, as all the real
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* work is done in the northbridge(s).
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*/
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/agp_backend.h>
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#include <linux/mmzone.h>
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#include <asm/page.h> /* PAGE_SIZE */
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#include <asm/k8.h>
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#include "agp.h"
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/* PTE bits. */
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#define GPTE_VALID 1
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#define GPTE_COHERENT 2
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/* Aperture control register bits. */
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#define GARTEN (1<<0)
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#define DISGARTCPU (1<<4)
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#define DISGARTIO (1<<5)
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/* GART cache control register bits. */
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#define INVGART (1<<0)
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#define GARTPTEERR (1<<1)
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/* K8 On-cpu GART registers */
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#define AMD64_GARTAPERTURECTL 0x90
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#define AMD64_GARTAPERTUREBASE 0x94
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#define AMD64_GARTTABLEBASE 0x98
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#define AMD64_GARTCACHECTL 0x9c
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#define AMD64_GARTEN (1<<0)
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/* NVIDIA K8 registers */
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#define NVIDIA_X86_64_0_APBASE 0x10
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#define NVIDIA_X86_64_1_APBASE1 0x50
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#define NVIDIA_X86_64_1_APLIMIT1 0x54
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#define NVIDIA_X86_64_1_APSIZE 0xa8
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#define NVIDIA_X86_64_1_APBASE2 0xd8
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#define NVIDIA_X86_64_1_APLIMIT2 0xdc
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/* ULi K8 registers */
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#define ULI_X86_64_BASE_ADDR 0x10
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#define ULI_X86_64_HTT_FEA_REG 0x50
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#define ULI_X86_64_ENU_SCR_REG 0x54
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static struct resource *aperture_resource;
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static int __initdata agp_try_unsupported = 1;
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static void amd64_tlbflush(struct agp_memory *temp)
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{
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k8_flush_garts();
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}
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static int amd64_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
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{
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int i, j, num_entries;
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long long tmp;
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u32 pte;
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num_entries = agp_num_entries();
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if (type != 0 || mem->type != 0)
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return -EINVAL;
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/* Make sure we can fit the range in the gatt table. */
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/* FIXME: could wrap */
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if (((unsigned long)pg_start + mem->page_count) > num_entries)
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return -EINVAL;
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j = pg_start;
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/* gatt table should be empty. */
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while (j < (pg_start + mem->page_count)) {
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if (!PGE_EMPTY(agp_bridge, readl(agp_bridge->gatt_table+j)))
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return -EBUSY;
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j++;
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}
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if (mem->is_flushed == FALSE) {
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global_cache_flush();
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mem->is_flushed = TRUE;
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}
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for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
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tmp = agp_bridge->driver->mask_memory(agp_bridge,
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mem->memory[i], mem->type);
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BUG_ON(tmp & 0xffffff0000000ffcULL);
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pte = (tmp & 0x000000ff00000000ULL) >> 28;
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pte |=(tmp & 0x00000000fffff000ULL);
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pte |= GPTE_VALID | GPTE_COHERENT;
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writel(pte, agp_bridge->gatt_table+j);
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readl(agp_bridge->gatt_table+j); /* PCI Posting. */
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}
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amd64_tlbflush(mem);
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return 0;
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}
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/*
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* This hack alters the order element according
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* to the size of a long. It sucks. I totally disown this, even
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* though it does appear to work for the most part.
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*/
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static struct aper_size_info_32 amd64_aperture_sizes[7] =
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{
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{32, 8192, 3+(sizeof(long)/8), 0 },
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{64, 16384, 4+(sizeof(long)/8), 1<<1 },
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{128, 32768, 5+(sizeof(long)/8), 1<<2 },
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{256, 65536, 6+(sizeof(long)/8), 1<<1 | 1<<2 },
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{512, 131072, 7+(sizeof(long)/8), 1<<3 },
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{1024, 262144, 8+(sizeof(long)/8), 1<<1 | 1<<3},
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{2048, 524288, 9+(sizeof(long)/8), 1<<2 | 1<<3}
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};
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/*
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* Get the current Aperture size from the x86-64.
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* Note, that there may be multiple x86-64's, but we just return
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* the value from the first one we find. The set_size functions
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* keep the rest coherent anyway. Or at least should do.
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*/
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static int amd64_fetch_size(void)
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{
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struct pci_dev *dev;
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int i;
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u32 temp;
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struct aper_size_info_32 *values;
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dev = k8_northbridges[0];
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if (dev==NULL)
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return 0;
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pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &temp);
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temp = (temp & 0xe);
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values = A_SIZE_32(amd64_aperture_sizes);
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for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {
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if (temp == values[i].size_value) {
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agp_bridge->previous_size =
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agp_bridge->current_size = (void *) (values + i);
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agp_bridge->aperture_size_idx = i;
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return values[i].size;
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}
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}
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return 0;
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}
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/*
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* In a multiprocessor x86-64 system, this function gets
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* called once for each CPU.
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*/
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static u64 amd64_configure (struct pci_dev *hammer, u64 gatt_table)
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{
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u64 aperturebase;
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u32 tmp;
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u64 addr, aper_base;
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/* Address to map to */
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pci_read_config_dword (hammer, AMD64_GARTAPERTUREBASE, &tmp);
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aperturebase = tmp << 25;
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aper_base = (aperturebase & PCI_BASE_ADDRESS_MEM_MASK);
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/* address of the mappings table */
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addr = (u64) gatt_table;
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addr >>= 12;
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tmp = (u32) addr<<4;
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tmp &= ~0xf;
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pci_write_config_dword (hammer, AMD64_GARTTABLEBASE, tmp);
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/* Enable GART translation for this hammer. */
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pci_read_config_dword(hammer, AMD64_GARTAPERTURECTL, &tmp);
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tmp |= GARTEN;
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tmp &= ~(DISGARTCPU | DISGARTIO);
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pci_write_config_dword(hammer, AMD64_GARTAPERTURECTL, tmp);
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return aper_base;
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}
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static struct aper_size_info_32 amd_8151_sizes[7] =
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{
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{2048, 524288, 9, 0x00000000 }, /* 0 0 0 0 0 0 */
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{1024, 262144, 8, 0x00000400 }, /* 1 0 0 0 0 0 */
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{512, 131072, 7, 0x00000600 }, /* 1 1 0 0 0 0 */
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{256, 65536, 6, 0x00000700 }, /* 1 1 1 0 0 0 */
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{128, 32768, 5, 0x00000720 }, /* 1 1 1 1 0 0 */
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{64, 16384, 4, 0x00000730 }, /* 1 1 1 1 1 0 */
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{32, 8192, 3, 0x00000738 } /* 1 1 1 1 1 1 */
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};
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static int amd_8151_configure(void)
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{
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unsigned long gatt_bus = virt_to_gart(agp_bridge->gatt_table_real);
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int i;
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/* Configure AGP regs in each x86-64 host bridge. */
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for (i = 0; i < num_k8_northbridges; i++) {
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agp_bridge->gart_bus_addr =
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amd64_configure(k8_northbridges[i], gatt_bus);
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}
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k8_flush_garts();
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return 0;
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}
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static void amd64_cleanup(void)
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{
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u32 tmp;
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int i;
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for (i = 0; i < num_k8_northbridges; i++) {
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struct pci_dev *dev = k8_northbridges[i];
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/* disable gart translation */
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pci_read_config_dword (dev, AMD64_GARTAPERTURECTL, &tmp);
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tmp &= ~AMD64_GARTEN;
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pci_write_config_dword (dev, AMD64_GARTAPERTURECTL, tmp);
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}
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}
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static struct agp_bridge_driver amd_8151_driver = {
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.owner = THIS_MODULE,
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.aperture_sizes = amd_8151_sizes,
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.size_type = U32_APER_SIZE,
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.num_aperture_sizes = 7,
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.configure = amd_8151_configure,
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.fetch_size = amd64_fetch_size,
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.cleanup = amd64_cleanup,
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.tlb_flush = amd64_tlbflush,
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.mask_memory = agp_generic_mask_memory,
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.masks = NULL,
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.agp_enable = agp_generic_enable,
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.cache_flush = global_cache_flush,
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.create_gatt_table = agp_generic_create_gatt_table,
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.free_gatt_table = agp_generic_free_gatt_table,
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.insert_memory = amd64_insert_memory,
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.remove_memory = agp_generic_remove_memory,
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.alloc_by_type = agp_generic_alloc_by_type,
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.free_by_type = agp_generic_free_by_type,
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.agp_alloc_page = agp_generic_alloc_page,
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.agp_destroy_page = agp_generic_destroy_page,
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};
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/* Some basic sanity checks for the aperture. */
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static int __devinit aperture_valid(u64 aper, u32 size)
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{
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u32 pfn, c;
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if (aper == 0) {
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printk(KERN_ERR PFX "No aperture\n");
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return 0;
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}
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if (size < 32*1024*1024) {
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printk(KERN_ERR PFX "Aperture too small (%d MB)\n", size>>20);
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return 0;
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}
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if (aper + size > 0xffffffff) {
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printk(KERN_ERR PFX "Aperture out of bounds\n");
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return 0;
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}
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pfn = aper >> PAGE_SHIFT;
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for (c = 0; c < size/PAGE_SIZE; c++) {
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if (!pfn_valid(pfn + c))
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break;
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if (!PageReserved(pfn_to_page(pfn + c))) {
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printk(KERN_ERR PFX "Aperture pointing to RAM\n");
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return 0;
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}
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}
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/* Request the Aperture. This catches cases when someone else
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already put a mapping in there - happens with some very broken BIOS
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Maybe better to use pci_assign_resource/pci_enable_device instead
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trusting the bridges? */
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if (!aperture_resource &&
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!(aperture_resource = request_mem_region(aper, size, "aperture"))) {
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printk(KERN_ERR PFX "Aperture conflicts with PCI mapping.\n");
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return 0;
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}
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return 1;
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}
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/*
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* W*s centric BIOS sometimes only set up the aperture in the AGP
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* bridge, not the northbridge. On AMD64 this is handled early
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* in aperture.c, but when IOMMU is not enabled or we run
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* on a 32bit kernel this needs to be redone.
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* Unfortunately it is impossible to fix the aperture here because it's too late
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* to allocate that much memory. But at least error out cleanly instead of
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* crashing.
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*/
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static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp,
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u16 cap)
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{
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u32 aper_low, aper_hi;
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u64 aper, nb_aper;
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int order = 0;
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u32 nb_order, nb_base;
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u16 apsize;
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pci_read_config_dword(nb, 0x90, &nb_order);
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nb_order = (nb_order >> 1) & 7;
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pci_read_config_dword(nb, 0x94, &nb_base);
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nb_aper = nb_base << 25;
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if (aperture_valid(nb_aper, (32*1024*1024)<<nb_order)) {
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return 0;
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}
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/* Northbridge seems to contain crap. Try the AGP bridge. */
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pci_read_config_word(agp, cap+0x14, &apsize);
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if (apsize == 0xffff)
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return -1;
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apsize &= 0xfff;
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/* Some BIOS use weird encodings not in the AGPv3 table. */
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if (apsize & 0xff)
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apsize |= 0xf00;
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order = 7 - hweight16(apsize);
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pci_read_config_dword(agp, 0x10, &aper_low);
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pci_read_config_dword(agp, 0x14, &aper_hi);
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aper = (aper_low & ~((1<<22)-1)) | ((u64)aper_hi << 32);
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printk(KERN_INFO PFX "Aperture from AGP @ %Lx size %u MB\n", aper, 32 << order);
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if (order < 0 || !aperture_valid(aper, (32*1024*1024)<<order))
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return -1;
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pci_write_config_dword(nb, 0x90, order << 1);
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pci_write_config_dword(nb, 0x94, aper >> 25);
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return 0;
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}
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static __devinit int cache_nbs (struct pci_dev *pdev, u32 cap_ptr)
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{
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int i;
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if (cache_k8_northbridges() < 0)
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return -ENODEV;
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i = 0;
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for (i = 0; i < num_k8_northbridges; i++) {
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struct pci_dev *dev = k8_northbridges[i];
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if (fix_northbridge(dev, pdev, cap_ptr) < 0) {
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printk(KERN_ERR PFX "No usable aperture found.\n");
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#ifdef __x86_64__
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/* should port this to i386 */
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printk(KERN_ERR PFX "Consider rebooting with iommu=memaper=2 to get a good aperture.\n");
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#endif
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return -1;
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}
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}
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return 0;
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}
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/* Handle AMD 8151 quirks */
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static void __devinit amd8151_init(struct pci_dev *pdev, struct agp_bridge_data *bridge)
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{
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char *revstring;
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u8 rev_id;
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pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
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switch (rev_id) {
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case 0x01: revstring="A0"; break;
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case 0x02: revstring="A1"; break;
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case 0x11: revstring="B0"; break;
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case 0x12: revstring="B1"; break;
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case 0x13: revstring="B2"; break;
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case 0x14: revstring="B3"; break;
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default: revstring="??"; break;
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}
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printk (KERN_INFO PFX "Detected AMD 8151 AGP Bridge rev %s\n", revstring);
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/*
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* Work around errata.
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* Chips before B2 stepping incorrectly reporting v3.5
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*/
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if (rev_id < 0x13) {
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printk (KERN_INFO PFX "Correcting AGP revision (reports 3.5, is really 3.0)\n");
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bridge->major_version = 3;
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bridge->minor_version = 0;
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}
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}
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static const struct aper_size_info_32 uli_sizes[7] =
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{
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{256, 65536, 6, 10},
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{128, 32768, 5, 9},
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{64, 16384, 4, 8},
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{32, 8192, 3, 7},
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{16, 4096, 2, 6},
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{8, 2048, 1, 4},
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{4, 1024, 0, 3}
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};
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static int __devinit uli_agp_init(struct pci_dev *pdev)
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{
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u32 httfea,baseaddr,enuscr;
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struct pci_dev *dev1;
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int i;
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unsigned size = amd64_fetch_size();
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printk(KERN_INFO "Setting up ULi AGP.\n");
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dev1 = pci_get_slot (pdev->bus,PCI_DEVFN(0,0));
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if (dev1 == NULL) {
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printk(KERN_INFO PFX "Detected a ULi chipset, "
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"but could not fine the secondary device.\n");
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return -ENODEV;
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}
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for (i = 0; i < ARRAY_SIZE(uli_sizes); i++)
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if (uli_sizes[i].size == size)
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break;
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if (i == ARRAY_SIZE(uli_sizes)) {
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printk(KERN_INFO PFX "No ULi size found for %d\n", size);
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return -ENODEV;
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}
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/* shadow x86-64 registers into ULi registers */
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pci_read_config_dword (k8_northbridges[0], AMD64_GARTAPERTUREBASE, &httfea);
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/* if x86-64 aperture base is beyond 4G, exit here */
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if ((httfea & 0x7fff) >> (32 - 25))
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return -ENODEV;
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httfea = (httfea& 0x7fff) << 25;
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pci_read_config_dword(pdev, ULI_X86_64_BASE_ADDR, &baseaddr);
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baseaddr&= ~PCI_BASE_ADDRESS_MEM_MASK;
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baseaddr|= httfea;
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pci_write_config_dword(pdev, ULI_X86_64_BASE_ADDR, baseaddr);
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enuscr= httfea+ (size * 1024 * 1024) - 1;
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pci_write_config_dword(dev1, ULI_X86_64_HTT_FEA_REG, httfea);
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pci_write_config_dword(dev1, ULI_X86_64_ENU_SCR_REG, enuscr);
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pci_dev_put(dev1);
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return 0;
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}
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static const struct aper_size_info_32 nforce3_sizes[5] =
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{
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{512, 131072, 7, 0x00000000 },
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{256, 65536, 6, 0x00000008 },
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{128, 32768, 5, 0x0000000C },
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{64, 16384, 4, 0x0000000E },
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{32, 8192, 3, 0x0000000F }
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};
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/* Handle shadow device of the Nvidia NForce3 */
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/* CHECK-ME original 2.4 version set up some IORRs. Check if that is needed. */
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static int __devinit nforce3_agp_init(struct pci_dev *pdev)
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{
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u32 tmp, apbase, apbar, aplimit;
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struct pci_dev *dev1;
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int i;
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unsigned size = amd64_fetch_size();
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printk(KERN_INFO PFX "Setting up Nforce3 AGP.\n");
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dev1 = pci_get_slot(pdev->bus, PCI_DEVFN(11, 0));
|
|
if (dev1 == NULL) {
|
|
printk(KERN_INFO PFX "agpgart: Detected an NVIDIA "
|
|
"nForce3 chipset, but could not find "
|
|
"the secondary device.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(nforce3_sizes); i++)
|
|
if (nforce3_sizes[i].size == size)
|
|
break;
|
|
|
|
if (i == ARRAY_SIZE(nforce3_sizes)) {
|
|
printk(KERN_INFO PFX "No NForce3 size found for %d\n", size);
|
|
return -ENODEV;
|
|
}
|
|
|
|
pci_read_config_dword(dev1, NVIDIA_X86_64_1_APSIZE, &tmp);
|
|
tmp &= ~(0xf);
|
|
tmp |= nforce3_sizes[i].size_value;
|
|
pci_write_config_dword(dev1, NVIDIA_X86_64_1_APSIZE, tmp);
|
|
|
|
/* shadow x86-64 registers into NVIDIA registers */
|
|
pci_read_config_dword (k8_northbridges[0], AMD64_GARTAPERTUREBASE, &apbase);
|
|
|
|
/* if x86-64 aperture base is beyond 4G, exit here */
|
|
if ( (apbase & 0x7fff) >> (32 - 25) ) {
|
|
printk(KERN_INFO PFX "aperture base > 4G\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
apbase = (apbase & 0x7fff) << 25;
|
|
|
|
pci_read_config_dword(pdev, NVIDIA_X86_64_0_APBASE, &apbar);
|
|
apbar &= ~PCI_BASE_ADDRESS_MEM_MASK;
|
|
apbar |= apbase;
|
|
pci_write_config_dword(pdev, NVIDIA_X86_64_0_APBASE, apbar);
|
|
|
|
aplimit = apbase + (size * 1024 * 1024) - 1;
|
|
pci_write_config_dword(dev1, NVIDIA_X86_64_1_APBASE1, apbase);
|
|
pci_write_config_dword(dev1, NVIDIA_X86_64_1_APLIMIT1, aplimit);
|
|
pci_write_config_dword(dev1, NVIDIA_X86_64_1_APBASE2, apbase);
|
|
pci_write_config_dword(dev1, NVIDIA_X86_64_1_APLIMIT2, aplimit);
|
|
|
|
pci_dev_put(dev1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __devinit agp_amd64_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
struct agp_bridge_data *bridge;
|
|
u8 cap_ptr;
|
|
|
|
cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
|
|
if (!cap_ptr)
|
|
return -ENODEV;
|
|
|
|
/* Could check for AGPv3 here */
|
|
|
|
bridge = agp_alloc_bridge();
|
|
if (!bridge)
|
|
return -ENOMEM;
|
|
|
|
if (pdev->vendor == PCI_VENDOR_ID_AMD &&
|
|
pdev->device == PCI_DEVICE_ID_AMD_8151_0) {
|
|
amd8151_init(pdev, bridge);
|
|
} else {
|
|
printk(KERN_INFO PFX "Detected AGP bridge %x\n", pdev->devfn);
|
|
}
|
|
|
|
bridge->driver = &amd_8151_driver;
|
|
bridge->dev = pdev;
|
|
bridge->capndx = cap_ptr;
|
|
|
|
/* Fill in the mode register */
|
|
pci_read_config_dword(pdev, bridge->capndx+PCI_AGP_STATUS, &bridge->mode);
|
|
|
|
if (cache_nbs(pdev, cap_ptr) == -1) {
|
|
agp_put_bridge(bridge);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (pdev->vendor == PCI_VENDOR_ID_NVIDIA) {
|
|
int ret = nforce3_agp_init(pdev);
|
|
if (ret) {
|
|
agp_put_bridge(bridge);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (pdev->vendor == PCI_VENDOR_ID_AL) {
|
|
int ret = uli_agp_init(pdev);
|
|
if (ret) {
|
|
agp_put_bridge(bridge);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
pci_set_drvdata(pdev, bridge);
|
|
return agp_add_bridge(bridge);
|
|
}
|
|
|
|
static void __devexit agp_amd64_remove(struct pci_dev *pdev)
|
|
{
|
|
struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
|
|
|
|
release_mem_region(virt_to_gart(bridge->gatt_table_real),
|
|
amd64_aperture_sizes[bridge->aperture_size_idx].size);
|
|
agp_remove_bridge(bridge);
|
|
agp_put_bridge(bridge);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
|
|
static int agp_amd64_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
pci_save_state(pdev);
|
|
pci_set_power_state(pdev, pci_choose_state(pdev, state));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int agp_amd64_resume(struct pci_dev *pdev)
|
|
{
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
pci_restore_state(pdev);
|
|
|
|
if (pdev->vendor == PCI_VENDOR_ID_NVIDIA)
|
|
nforce3_agp_init(pdev);
|
|
|
|
return amd_8151_configure();
|
|
}
|
|
|
|
#endif /* CONFIG_PM */
|
|
|
|
static struct pci_device_id agp_amd64_pci_table[] = {
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_AMD,
|
|
.device = PCI_DEVICE_ID_AMD_8151_0,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
/* ULi M1689 */
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_AL,
|
|
.device = PCI_DEVICE_ID_AL_M1689,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
/* VIA K8T800Pro */
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_VIA,
|
|
.device = PCI_DEVICE_ID_VIA_K8T800PRO_0,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
/* VIA K8T800 */
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_VIA,
|
|
.device = PCI_DEVICE_ID_VIA_8385_0,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
/* VIA K8M800 / K8N800 */
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_VIA,
|
|
.device = PCI_DEVICE_ID_VIA_8380_0,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
/* VIA K8T890 */
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_VIA,
|
|
.device = PCI_DEVICE_ID_VIA_3238_0,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
/* VIA K8T800/K8M800/K8N800 */
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_VIA,
|
|
.device = PCI_DEVICE_ID_VIA_838X_1,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
/* NForce3 */
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_NVIDIA,
|
|
.device = PCI_DEVICE_ID_NVIDIA_NFORCE3,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_NVIDIA,
|
|
.device = PCI_DEVICE_ID_NVIDIA_NFORCE3S,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
/* SIS 755 */
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_SI,
|
|
.device = PCI_DEVICE_ID_SI_755,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
/* SIS 760 */
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_SI,
|
|
.device = PCI_DEVICE_ID_SI_760,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
/* ALI/ULI M1695 */
|
|
{
|
|
.class = (PCI_CLASS_BRIDGE_HOST << 8),
|
|
.class_mask = ~0,
|
|
.vendor = PCI_VENDOR_ID_AL,
|
|
.device = 0x1695,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
},
|
|
|
|
{ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, agp_amd64_pci_table);
|
|
|
|
static struct pci_driver agp_amd64_pci_driver = {
|
|
.name = "agpgart-amd64",
|
|
.id_table = agp_amd64_pci_table,
|
|
.probe = agp_amd64_probe,
|
|
.remove = agp_amd64_remove,
|
|
#ifdef CONFIG_PM
|
|
.suspend = agp_amd64_suspend,
|
|
.resume = agp_amd64_resume,
|
|
#endif
|
|
};
|
|
|
|
|
|
/* Not static due to IOMMU code calling it early. */
|
|
int __init agp_amd64_init(void)
|
|
{
|
|
int err = 0;
|
|
|
|
if (agp_off)
|
|
return -EINVAL;
|
|
if (pci_register_driver(&agp_amd64_pci_driver) < 0) {
|
|
struct pci_dev *dev;
|
|
if (!agp_try_unsupported && !agp_try_unsupported_boot) {
|
|
printk(KERN_INFO PFX "No supported AGP bridge found.\n");
|
|
#ifdef MODULE
|
|
printk(KERN_INFO PFX "You can try agp_try_unsupported=1\n");
|
|
#else
|
|
printk(KERN_INFO PFX "You can boot with agp=try_unsupported\n");
|
|
#endif
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* First check that we have at least one AMD64 NB */
|
|
if (!pci_dev_present(k8_nb_ids))
|
|
return -ENODEV;
|
|
|
|
/* Look for any AGP bridge */
|
|
dev = NULL;
|
|
err = -ENODEV;
|
|
for_each_pci_dev(dev) {
|
|
if (!pci_find_capability(dev, PCI_CAP_ID_AGP))
|
|
continue;
|
|
/* Only one bridge supported right now */
|
|
if (agp_amd64_probe(dev, NULL) == 0) {
|
|
err = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static void __exit agp_amd64_cleanup(void)
|
|
{
|
|
if (aperture_resource)
|
|
release_resource(aperture_resource);
|
|
pci_unregister_driver(&agp_amd64_pci_driver);
|
|
}
|
|
|
|
/* On AMD64 the PCI driver needs to initialize this driver early
|
|
for the IOMMU, so it has to be called via a backdoor. */
|
|
#ifndef CONFIG_IOMMU
|
|
module_init(agp_amd64_init);
|
|
module_exit(agp_amd64_cleanup);
|
|
#endif
|
|
|
|
MODULE_AUTHOR("Dave Jones <davej@codemonkey.org.uk>, Andi Kleen");
|
|
module_param(agp_try_unsupported, bool, 0);
|
|
MODULE_LICENSE("GPL");
|