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authorZhenyu Wang <zhenyuw@linux.intel.com>2010-07-09 10:45:17 -0700
committerEric Anholt <eric@anholt.net>2010-08-01 19:03:48 -0700
commita2757b6fab6dee3dbf43bdb7d7226d03747fbdb1 (patch)
treef3f30e2921f93fc6bfbcf0a8a13fba872b40de3e /drivers
parent3869d4a8afd3ce97770e66d6a96672af93984cc2 (diff)
agp/intel: Add actual definitions of the Sandybridge PTE caching bits.
Diffstat (limited to 'drivers')
-rw-r--r--drivers/char/agp/intel-agp.h6
-rw-r--r--drivers/char/agp/intel-gtt.c2
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/char/agp/intel-agp.h b/drivers/char/agp/intel-agp.h
index 2547465d4658..c05e3e518268 100644
--- a/drivers/char/agp/intel-agp.h
+++ b/drivers/char/agp/intel-agp.h
@@ -60,6 +60,12 @@
#define I810_PTE_LOCAL 0x00000002
#define I810_PTE_VALID 0x00000001
#define I830_PTE_SYSTEM_CACHED 0x00000006
+/* GT PTE cache control fields */
+#define GEN6_PTE_UNCACHED 0x00000002
+#define GEN6_PTE_LLC 0x00000004
+#define GEN6_PTE_LLC_MLC 0x00000006
+#define GEN6_PTE_GFDT 0x00000008
+
#define I810_SMRAM_MISCC 0x70
#define I810_GFX_MEM_WIN_SIZE 0x00010000
#define I810_GFX_MEM_WIN_32M 0x00010000
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 2b1a0e96c71f..ccd4b1e694d1 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -176,7 +176,7 @@ static void intel_agp_insert_sg_entries(struct agp_memory *mem,
if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB)
{
- cache_bits = I830_PTE_SYSTEM_CACHED;
+ cache_bits = GEN6_PTE_LLC_MLC;
}
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {