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agp/intel: Use a non-reserved value for the cache field of the PTEs.
author
Eric Anholt
<eric@anholt.net>
Mon, 2 Nov 2009 23:33:05 +0000
(15:33 -0800)
committer
Eric Anholt
<eric@anholt.net>
Fri, 26 Feb 2010 21:23:18 +0000
(13:23 -0800)
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>
drivers/char/agp/intel-agp.c
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diff --git
a/drivers/char/agp/intel-agp.c
b/drivers/char/agp/intel-agp.c
index
df85ed9
..
c3c870b
100644
(file)
--- 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,