static int ati_fetch_size(void)
{
int i;
u32 temp;
struct aper_size_info_lvl2 *values;
if (is_r200())
pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp);
else
pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp);
temp = (temp & 0x0000000e);
values = A_SIZE_LVL2(agp_bridge->driver->aperture_sizes);
for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {
if (temp == values[i].size_value) {
agp_bridge->previous_size =
agp_bridge->current_size = (void *) (values + i);
agp_bridge->aperture_size_idx = i;
return values[i].size;
}
}
return 0;
}
static int ati_configure(void)
{
u32 temp;
pci_read_config_dword(agp_bridge->dev, ATI_GART_MMBASE_ADDR, &temp);
temp = (temp & 0xfffff000);
ati_generic_private.registers = (volatile u8 __iomem *) ioremap(temp, 4096);
if (!ati_generic_private.registers)
return -ENOMEM;
if (is_r200())
pci_write_config_dword(agp_bridge->dev, ATI_RS100_IG_AGPMODE, 0x20000);
else
pci_write_config_dword(agp_bridge->dev, ATI_RS300_IG_AGPMODE, 0x20000);
writel(0x60000, ati_generic_private.registers+ATI_GART_FEATURE_ID);
readl(ati_generic_private.registers+ATI_GART_FEATURE_ID);
pci_read_config_dword(agp_bridge->dev, 4, &temp);
pci_write_config_dword(agp_bridge->dev, 4, temp | (1<<14));
writel(agp_bridge->gatt_bus_addr, ati_generic_private.registers+ATI_GART_BASE);
readl(ati_generic_private.registers+ATI_GART_BASE);
return 0;
}
static int ati_create_gatt_table(struct agp_bridge_data *bridge)
{
struct aper_size_info_lvl2 *value;
ati_page_map page_dir;
unsigned long addr;
int retval;
u32 temp;
int i;
struct aper_size_info_lvl2 *current_size;
value = A_SIZE_LVL2(agp_bridge->current_size);
retval = ati_create_page_map(&page_dir);
if (retval != 0)
return retval;
retval = ati_create_gatt_pages(value->num_entries / 1024);
if (retval != 0) {
ati_free_page_map(&page_dir);
return retval;
}
agp_bridge->gatt_table_real = (u32 *)page_dir.real;
agp_bridge->gatt_table = (u32 __iomem *) page_dir.remapped;
agp_bridge->gatt_bus_addr = virt_to_gart(page_dir.real);
/* Write out the size register */
current_size = A_SIZE_LVL2(agp_bridge->current_size);
if (is_r200()) {
pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp);
temp = (((temp & ~(0x0000000e)) | current_size->size_value)
| 0x00000001);
pci_write_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, temp);
pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp);
} else {
pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp);
temp = (((temp & ~(0x0000000e)) | current_size->size_value)
| 0x00000001);
pci_write_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, temp);
pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp);
}
/*
* Get the address for the gart region.
* This is a bus address even on the alpha, b/c its
* used to program the agp master not the cpu
*/
pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
agp_bridge->gart_bus_addr = addr;
/* Calculate the agp offset */
for(i = 0; i < value->num_entries / 1024; i++, addr += 0x00400000) {
writel(virt_to_gart(ati_generic_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 ati_configure(void)
{
u32 temp;
/* Get the memory mapped registers */
pci_read_config_dword(agp_bridge->dev, ATI_GART_MMBASE_ADDR, &temp);
temp = (temp & 0xfffff000);
ati_generic_private.registers = (volatile u8 __iomem *) ioremap(temp, 4096);
if (is_r200())
pci_write_config_dword(agp_bridge->dev, ATI_RS100_IG_AGPMODE, 0x20000);
else
pci_write_config_dword(agp_bridge->dev, ATI_RS300_IG_AGPMODE, 0x20000);
/* address to map too */
/*
pci_read_config_dword(agp_bridge.dev, AGP_APBASE, &temp);
agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
printk(KERN_INFO PFX "IGP320 gart_bus_addr: %x\n", agp_bridge.gart_bus_addr);
*/
writel(0x60000, ati_generic_private.registers+ATI_GART_FEATURE_ID);
readl(ati_generic_private.registers+ATI_GART_FEATURE_ID); /* PCI Posting.*/
/* SIGNALED_SYSTEM_ERROR @ NB_STATUS */
pci_read_config_dword(agp_bridge->dev, 4, &temp);
pci_write_config_dword(agp_bridge->dev, 4, temp | (1<<14));
/* Write out the address of the gatt table */
writel(agp_bridge->gatt_bus_addr, ati_generic_private.registers+ATI_GART_BASE);
readl(ati_generic_private.registers+ATI_GART_BASE); /* PCI Posting. */
return 0;
}
static int ati_create_gatt_table(struct agp_bridge_data *bridge)
{
struct aper_size_info_lvl2 *value;
struct ati_page_map page_dir;
unsigned long addr;
int retval;
u32 temp;
int i;
struct aper_size_info_lvl2 *current_size;
value = A_SIZE_LVL2(agp_bridge->current_size);
retval = ati_create_page_map(&page_dir);
if (retval != 0)
return retval;
retval = ati_create_gatt_pages(value->num_entries / 1024);
if (retval != 0) {
ati_free_page_map(&page_dir);
return retval;
}
agp_bridge->gatt_table_real = (u32 *)page_dir.real;
agp_bridge->gatt_table = (u32 __iomem *) page_dir.remapped;
agp_bridge->gatt_bus_addr = virt_to_phys(page_dir.real);
current_size = A_SIZE_LVL2(agp_bridge->current_size);
if (is_r200()) {
pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp);
temp = (((temp & ~(0x0000000e)) | current_size->size_value)
| 0x00000001);
pci_write_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, temp);
pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp);
} else {
pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp);
temp = (((temp & ~(0x0000000e)) | current_size->size_value)
| 0x00000001);
pci_write_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, temp);
pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp);
}
pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
agp_bridge->gart_bus_addr = addr;
for (i = 0; i < value->num_entries / 1024; i++, addr += 0x00400000) {
writel(virt_to_phys(ati_generic_private.gatt_pages[i]->real) | 1,
page_dir.remapped+GET_PAGE_DIR_OFF(addr));
readl(page_dir.remapped+GET_PAGE_DIR_OFF(addr));
}
return 0;
}
static void ati_cleanup(void)
{
struct aper_size_info_lvl2 *previous_size;
u32 temp;
previous_size = A_SIZE_LVL2(agp_bridge->previous_size);
/* Write back the previous size and disable gart translation */
if (is_r200()) {
pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp);
temp = ((temp & ~(0x0000000f)) | previous_size->size_value);
pci_write_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, temp);
} else {
pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp);
temp = ((temp & ~(0x0000000f)) | previous_size->size_value);
pci_write_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, temp);
}
iounmap((volatile u8 __iomem *)ati_generic_private.registers);
}
static int ati_configure(void)
{
phys_addr_t reg;
u32 temp;
/* Get the memory mapped registers */
reg = pci_resource_start(agp_bridge->dev, ATI_GART_MMBASE_BAR);
ati_generic_private.registers = (volatile u8 __iomem *) ioremap(reg, 4096);
if (!ati_generic_private.registers)
return -ENOMEM;
if (is_r200())
pci_write_config_dword(agp_bridge->dev, ATI_RS100_IG_AGPMODE, 0x20000);
else
pci_write_config_dword(agp_bridge->dev, ATI_RS300_IG_AGPMODE, 0x20000);
/* address to map to */
/*
agp_bridge.gart_bus_addr = pci_bus_address(agp_bridge.dev,
AGP_APERTURE_BAR);
printk(KERN_INFO PFX "IGP320 gart_bus_addr: %x\n", agp_bridge.gart_bus_addr);
*/
writel(0x60000, ati_generic_private.registers+ATI_GART_FEATURE_ID);
readl(ati_generic_private.registers+ATI_GART_FEATURE_ID); /* PCI Posting.*/
/* SIGNALED_SYSTEM_ERROR @ NB_STATUS */
pci_read_config_dword(agp_bridge->dev, PCI_COMMAND, &temp);
pci_write_config_dword(agp_bridge->dev, PCI_COMMAND, temp | (1<<14));
/* Write out the address of the gatt table */
writel(agp_bridge->gatt_bus_addr, ati_generic_private.registers+ATI_GART_BASE);
readl(ati_generic_private.registers+ATI_GART_BASE); /* PCI Posting. */
return 0;
}
