aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/char
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/agp/intel-gtt.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 791582c73ff7..ebdeab26ee3c 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -98,6 +98,7 @@ static struct _intel_private {
98 u8 __iomem *registers; 98 u8 __iomem *registers;
99 phys_addr_t gtt_bus_addr; 99 phys_addr_t gtt_bus_addr;
100 phys_addr_t gma_bus_addr; 100 phys_addr_t gma_bus_addr;
101 phys_addr_t pte_bus_addr;
101 u32 __iomem *gtt; /* I915G */ 102 u32 __iomem *gtt; /* I915G */
102 int num_dcache_entries; 103 int num_dcache_entries;
103 union { 104 union {
@@ -896,11 +897,9 @@ static void intel_i830_chipset_flush(struct agp_bridge_data *bridge)
896 897
897static void intel_enable_gtt(void) 898static void intel_enable_gtt(void)
898{ 899{
899 u32 ptetbl_addr, gma_addr; 900 u32 gma_addr;
900 u16 gmch_ctrl; 901 u16 gmch_ctrl;
901 902
902 ptetbl_addr = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
903
904 if (INTEL_GTT_GEN == 2) 903 if (INTEL_GTT_GEN == 2)
905 pci_read_config_dword(intel_private.pcidev, I810_GMADDR, 904 pci_read_config_dword(intel_private.pcidev, I810_GMADDR,
906 &gma_addr); 905 &gma_addr);
@@ -914,7 +913,8 @@ static void intel_enable_gtt(void)
914 gmch_ctrl |= I830_GMCH_ENABLED; 913 gmch_ctrl |= I830_GMCH_ENABLED;
915 pci_write_config_word(intel_private.bridge_dev, I830_GMCH_CTRL, gmch_ctrl); 914 pci_write_config_word(intel_private.bridge_dev, I830_GMCH_CTRL, gmch_ctrl);
916 915
917 writel(ptetbl_addr|I810_PGETBL_ENABLED, intel_private.registers+I810_PGETBL_CTL); 916 writel(intel_private.pte_bus_addr|I810_PGETBL_ENABLED,
917 intel_private.registers+I810_PGETBL_CTL);
918 readl(intel_private.registers+I810_PGETBL_CTL); /* PCI Posting. */ 918 readl(intel_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
919} 919}
920 920
@@ -930,6 +930,8 @@ static int i830_setup(void)
930 return -ENOMEM; 930 return -ENOMEM;
931 931
932 intel_private.gtt_bus_addr = reg_addr + I810_PTE_BASE; 932 intel_private.gtt_bus_addr = reg_addr + I810_PTE_BASE;
933 intel_private.pte_bus_addr =
934 readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
933 935
934 intel_i830_setup_flush(); 936 intel_i830_setup_flush();
935 937
@@ -1279,6 +1281,7 @@ static int i9xx_setup(void)
1279 1281
1280 if (INTEL_GTT_GEN == 3) { 1282 if (INTEL_GTT_GEN == 3) {
1281 u32 gtt_addr; 1283 u32 gtt_addr;
1284
1282 pci_read_config_dword(intel_private.pcidev, 1285 pci_read_config_dword(intel_private.pcidev,
1283 I915_PTEADDR, &gtt_addr); 1286 I915_PTEADDR, &gtt_addr);
1284 intel_private.gtt_bus_addr = gtt_addr; 1287 intel_private.gtt_bus_addr = gtt_addr;
@@ -1298,6 +1301,9 @@ static int i9xx_setup(void)
1298 intel_private.gtt_bus_addr = reg_addr + gtt_offset; 1301 intel_private.gtt_bus_addr = reg_addr + gtt_offset;
1299 } 1302 }
1300 1303
1304 intel_private.pte_bus_addr =
1305 readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
1306
1301 intel_i9xx_setup_flush(); 1307 intel_i9xx_setup_flush();
1302 1308
1303 return 0; 1309 return 0;