struct amd_page_map {
unsigned long *real;
- unsigned long *remapped;
+ unsigned long __iomem *remapped;
};
static struct _amd_irongate_private {
- volatile u8 *registers;
+ volatile u8 __iomem *registers;
struct amd_page_map **gatt_pages;
int num_tables;
} amd_irongate_private;
SetPageReserved(virt_to_page(page_map->real));
global_cache_flush();
- page_map->remapped = ioremap_nocache(virt_to_phys(page_map->real),
+ page_map->remapped = ioremap_nocache(virt_to_gart(page_map->real),
PAGE_SIZE);
if (page_map->remapped == NULL) {
ClearPageReserved(virt_to_page(page_map->real));
}
global_cache_flush();
- for (i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++)
- page_map->remapped[i] = agp_bridge->scratch_page;
+ for (i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++) {
+ writel(agp_bridge->scratch_page, page_map->remapped+i);
+ readl(page_map->remapped+i); /* PCI Posting. */
+ }
return 0;
}
int retval = 0;
int i;
- tables = kmalloc((nr_tables + 1) * sizeof(struct amd_page_map *),
- GFP_KERNEL);
+ tables = kzalloc((nr_tables + 1) * sizeof(struct amd_page_map *),GFP_KERNEL);
if (tables == NULL)
return -ENOMEM;
- memset (tables, 0, sizeof(struct amd_page_map *) * (nr_tables + 1));
for (i = 0; i < nr_tables; i++) {
- entry = kmalloc(sizeof(struct amd_page_map), GFP_KERNEL);
+ entry = kzalloc(sizeof(struct amd_page_map), GFP_KERNEL);
if (entry == NULL) {
retval = -ENOMEM;
break;
}
- memset (entry, 0, sizeof(struct amd_page_map));
tables[i] = entry;
retval = amd_create_page_map(entry);
if (retval != 0)
return retval;
}
-/* Since we don't need contigious memory we just try
+/* Since we don't need contiguous memory we just try
* to get the gatt table once
*/
#define GET_GATT(addr) (amd_irongate_private.gatt_pages[\
GET_PAGE_DIR_IDX(addr)]->remapped)
-static int amd_create_gatt_table(void)
+static int amd_create_gatt_table(struct agp_bridge_data *bridge)
{
struct aper_size_info_lvl2 *value;
struct amd_page_map page_dir;
}
agp_bridge->gatt_table_real = (u32 *)page_dir.real;
- agp_bridge->gatt_table = (u32 *)page_dir.remapped;
- agp_bridge->gatt_bus_addr = virt_to_phys(page_dir.real);
+ agp_bridge->gatt_table = (u32 __iomem *)page_dir.remapped;
+ agp_bridge->gatt_bus_addr = virt_to_gart(page_dir.real);
/* Get the address for the gart region.
* This is a bus address even on the alpha, b/c its
/* Calculate the agp offset */
for (i = 0; i < value->num_entries / 1024; i++, addr += 0x00400000) {
- page_dir.remapped[GET_PAGE_DIR_OFF(addr)] =
- virt_to_phys(amd_irongate_private.gatt_pages[i]->real);
- page_dir.remapped[GET_PAGE_DIR_OFF(addr)] |= 0x00000001;
+ writel(virt_to_gart(amd_irongate_private.gatt_pages[i]->real) | 1,
+ page_dir.remapped+GET_PAGE_DIR_OFF(addr));
+ readl(page_dir.remapped+GET_PAGE_DIR_OFF(addr)); /* PCI Posting. */
}
return 0;
}
-static int amd_free_gatt_table(void)
+static int amd_free_gatt_table(struct agp_bridge_data *bridge)
{
struct amd_page_map page_dir;
page_dir.real = (unsigned long *)agp_bridge->gatt_table_real;
- page_dir.remapped = (unsigned long *)agp_bridge->gatt_table;
+ page_dir.remapped = (unsigned long __iomem *)agp_bridge->gatt_table;
amd_free_gatt_pages();
amd_free_page_map(&page_dir);
/* Get the memory mapped registers */
pci_read_config_dword(agp_bridge->dev, AMD_MMBASE, &temp);
temp = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- amd_irongate_private.registers = (volatile u8 *) ioremap(temp, 4096);
+ amd_irongate_private.registers = (volatile u8 __iomem *) ioremap(temp, 4096);
/* Write out the address of the gatt table */
- OUTREG32(amd_irongate_private.registers, AMD_ATTBASE,
- agp_bridge->gatt_bus_addr);
+ writel(agp_bridge->gatt_bus_addr, amd_irongate_private.registers+AMD_ATTBASE);
+ readl(amd_irongate_private.registers+AMD_ATTBASE); /* PCI Posting. */
/* Write the Sync register */
pci_write_config_byte(agp_bridge->dev, AMD_MODECNTL, 0x80);
pci_write_config_byte(agp_bridge->dev, AMD_MODECNTL2, 0x00);
/* Write the enable register */
- enable_reg = INREG16(amd_irongate_private.registers, AMD_GARTENABLE);
+ enable_reg = readw(amd_irongate_private.registers+AMD_GARTENABLE);
enable_reg = (enable_reg | 0x0004);
- OUTREG16(amd_irongate_private.registers, AMD_GARTENABLE, enable_reg);
+ writew(enable_reg, amd_irongate_private.registers+AMD_GARTENABLE);
+ readw(amd_irongate_private.registers+AMD_GARTENABLE); /* PCI Posting. */
/* Write out the size register */
pci_read_config_dword(agp_bridge->dev, AMD_APSIZE, &temp);
- temp = (((temp & ~(0x0000000e)) | current_size->size_value)
- | 0x00000001);
+ temp = (((temp & ~(0x0000000e)) | current_size->size_value) | 1);
pci_write_config_dword(agp_bridge->dev, AMD_APSIZE, temp);
/* Flush the tlb */
- OUTREG32(amd_irongate_private.registers, AMD_TLBFLUSH, 0x00000001);
-
+ writel(1, amd_irongate_private.registers+AMD_TLBFLUSH);
+ readl(amd_irongate_private.registers+AMD_TLBFLUSH); /* PCI Posting.*/
return 0;
}
previous_size = A_SIZE_LVL2(agp_bridge->previous_size);
- enable_reg = INREG16(amd_irongate_private.registers, AMD_GARTENABLE);
+ enable_reg = readw(amd_irongate_private.registers+AMD_GARTENABLE);
enable_reg = (enable_reg & ~(0x0004));
- OUTREG16(amd_irongate_private.registers, AMD_GARTENABLE, enable_reg);
+ writew(enable_reg, amd_irongate_private.registers+AMD_GARTENABLE);
+ readw(amd_irongate_private.registers+AMD_GARTENABLE); /* PCI Posting. */
/* Write back the previous size and disable gart translation */
pci_read_config_dword(agp_bridge->dev, AMD_APSIZE, &temp);
temp = ((temp & ~(0x0000000f)) | previous_size->size_value);
pci_write_config_dword(agp_bridge->dev, AMD_APSIZE, temp);
- iounmap((void *) amd_irongate_private.registers);
+ iounmap((void __iomem *) amd_irongate_private.registers);
}
/*
static void amd_irongate_tlbflush(struct agp_memory *temp)
{
- OUTREG32(amd_irongate_private.registers, AMD_TLBFLUSH, 0x00000001);
+ writel(1, amd_irongate_private.registers+AMD_TLBFLUSH);
+ readl(amd_irongate_private.registers+AMD_TLBFLUSH); /* PCI Posting. */
}
static int amd_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
{
int i, j, num_entries;
- unsigned long *cur_gatt;
+ unsigned long __iomem *cur_gatt;
unsigned long addr;
num_entries = A_SIZE_LVL2(agp_bridge->current_size)->num_entries;
while (j < (pg_start + mem->page_count)) {
addr = (j * PAGE_SIZE) + agp_bridge->gart_bus_addr;
cur_gatt = GET_GATT(addr);
- if (!PGE_EMPTY(agp_bridge, cur_gatt[GET_GATT_OFF(addr)]))
+ if (!PGE_EMPTY(agp_bridge, readl(cur_gatt+GET_GATT_OFF(addr))))
return -EBUSY;
j++;
}
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
addr = (j * PAGE_SIZE) + agp_bridge->gart_bus_addr;
cur_gatt = GET_GATT(addr);
- cur_gatt[GET_GATT_OFF(addr)] =
- agp_generic_mask_memory(mem->memory[i], mem->type);
+ writel(agp_generic_mask_memory(agp_bridge,
+ mem->memory[i], mem->type), cur_gatt+GET_GATT_OFF(addr));
+ readl(cur_gatt+GET_GATT_OFF(addr)); /* PCI Posting. */
}
amd_irongate_tlbflush(mem);
return 0;
static int amd_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
{
int i;
- unsigned long *cur_gatt;
+ unsigned long __iomem *cur_gatt;
unsigned long addr;
if (type != 0 || mem->type != 0)
for (i = pg_start; i < (mem->page_count + pg_start); i++) {
addr = (i * PAGE_SIZE) + agp_bridge->gart_bus_addr;
cur_gatt = GET_GATT(addr);
- cur_gatt[GET_GATT_OFF(addr)] =
- (unsigned long) agp_bridge->scratch_page;
+ writel(agp_bridge->scratch_page, cur_gatt+GET_GATT_OFF(addr));
+ readl(cur_gatt+GET_GATT_OFF(addr)); /* PCI Posting. */
}
amd_irongate_tlbflush(mem);
{.mask = 1, .type = 0}
};
-struct agp_bridge_driver amd_irongate_driver = {
+static struct agp_bridge_driver amd_irongate_driver = {
.owner = THIS_MODULE,
.aperture_sizes = amd_irongate_sizes,
.size_type = LVL2_APER_SIZE,
bridge->dev = pdev;
bridge->capndx = cap_ptr;
+ /* 751 Errata (22564_B-1.PDF)
+ erratum 20: strobe glitch with Nvidia NV10 GeForce cards.
+ system controller may experience noise due to strong drive strengths
+ */
+ if (agp_bridge->dev->device == PCI_DEVICE_ID_AMD_FE_GATE_7006) {
+ u8 cap_ptr=0;
+ struct pci_dev *gfxcard=NULL;
+ while (!cap_ptr) {
+ gfxcard = pci_get_class(PCI_CLASS_DISPLAY_VGA<<8, gfxcard);
+ if (!gfxcard) {
+ printk (KERN_INFO PFX "Couldn't find an AGP VGA controller.\n");
+ return -ENODEV;
+ }
+ cap_ptr = pci_find_capability(gfxcard, PCI_CAP_ID_AGP);
+ if (!cap_ptr) {
+ pci_dev_put(gfxcard);
+ continue;
+ }
+ }
+
+ /* With so many variants of NVidia cards, it's simpler just
+ to blacklist them all, and then whitelist them as needed
+ (if necessary at all). */
+ if (gfxcard->vendor == PCI_VENDOR_ID_NVIDIA) {
+ agp_bridge->flags |= AGP_ERRATA_1X;
+ printk (KERN_INFO PFX "AMD 751 chipset with NVidia GeForce detected. Forcing to 1X due to errata.\n");
+ }
+ pci_dev_put(gfxcard);
+ }
+
+ /* 761 Errata (23613_F.pdf)
+ * Revisions B0/B1 were a disaster.
+ * erratum 44: SYSCLK/AGPCLK skew causes 2X failures -- Force mode to 1X
+ * erratum 45: Timing problem prevents fast writes -- Disable fast write.
+ * erratum 46: Setup violation on AGP SBA pins - Disable side band addressing.
+ * With this lot disabled, we should prevent lockups. */
+ if (agp_bridge->dev->device == PCI_DEVICE_ID_AMD_FE_GATE_700E) {
+ u8 revision=0;
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &revision);
+ if (revision == 0x10 || revision == 0x11) {
+ agp_bridge->flags = AGP_ERRATA_FASTWRITES;
+ agp_bridge->flags |= AGP_ERRATA_SBA;
+ agp_bridge->flags |= AGP_ERRATA_1X;
+ printk (KERN_INFO PFX "AMD 761 chipset with errata detected - disabling AGP fast writes & SBA and forcing to 1X.\n");
+ }
+ }
+
/* Fill in the mode register */
pci_read_config_dword(pdev,
bridge->capndx+PCI_AGP_STATUS,
static int __init agp_amdk7_init(void)
{
- return pci_module_init(&agp_amdk7_pci_driver);
+ if (agp_off)
+ return -EINVAL;
+ return pci_register_driver(&agp_amdk7_pci_driver);
}
static void __exit agp_amdk7_cleanup(void)
git://git.onelab.eu / linux-2.6.git / blobdiff