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authorEric Anholt <eric@anholt.net>2009-11-02 15:33:05 -0800
committerEric Anholt <eric@anholt.net>2010-02-26 13:23:18 -0800
commite3deb204c69c485c88c990f07b71be10a464e508 (patch)
tree6531d33bc519851b1cffabfc0cae19c7fc312d21 /drivers/char/agp
parentf6e450a6417460db6a74241de8aaab5116cac140 (diff)
agp/intel: Use a non-reserved value for the cache field of the PTEs.
I don't know if this is what we'll want to be using long term, we'll see. Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/char/agp')
-rw-r--r--drivers/char/agp/intel-agp.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index df85ed9c7531..c3c870bf5678 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -296,6 +296,11 @@ static void intel_agp_insert_sg_entries(struct agp_memory *mem,
off_t pg_start, int mask_type)
{
int i, j;
+ u32 cache_bits = 0;
+
+ if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB) {
+ cache_bits = I830_PTE_SYSTEM_CACHED;
+ }
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
writel(agp_bridge->driver->mask_memory(agp_bridge,