Subject: [PATCH] [AGPGART] intel_agp: fix GTT map size on G33
G33 has 1MB GTT table range. Fix GTT mapping
in case like 512MB aperture size.
Signed-off-by: Zhenyu Wang <[email protected]>
---
drivers/char/agp/intel-agp.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 20d50d0..6a5c555 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -919,6 +919,7 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
struct aper_size_info_fixed *size;
int num_entries;
u32 temp, temp2;
+ int gtt_map_size = 256 * 1024;
size = agp_bridge->current_size;
page_order = size->page_order;
@@ -928,7 +929,9 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
pci_read_config_dword(intel_private.pcidev, I915_MMADDR, &temp);
pci_read_config_dword(intel_private.pcidev, I915_PTEADDR,&temp2);
- intel_private.gtt = ioremap(temp2, 256 * 1024);
+ if (IS_G33)
+ gtt_map_size = 1024 * 1024; /* 1M on G33 */
+ intel_private.gtt = ioremap(temp2, gtt_map_size);
if (!intel_private.gtt)
return -ENOMEM;
--
1.5.2.3
-
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