From e3deb204c69c485c88c990f07b71be10a464e508 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 2 Nov 2009 15:33:05 -0800 Subject: [PATCH] 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 --- drivers/char/agp/intel-agp.c | 5 +++++ 1 file changed, 5 insertions(+) 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, -- 2.20.1