From 4740622c5c805d88c63a50747a2d05537dd233cf Mon Sep 17 00:00:00 2001 From: Zhenyu Wang <zhenyu.z.wang@intel.com> Date: Tue, 11 Sep 2007 15:23:58 -0700 Subject: [PATCH] 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 <zhenyu.z.wang@intel.com> Acked-by: Dave Airlie <airlied@linux.ie> Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- drivers/char/agp/intel-agp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index 581f9222a9d1..7c69bf259caa 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; -- GitLab