From 8d369bb196f1f9111cb7ab839d4f420378fa7b30 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 15 Jul 2010 10:51:10 -0400 Subject: drm/radeon/kms: fix gtt MC base alignment on rs4xx/rs690/rs740 asics The asics in question have the following requirements with regard to their gart setups: 1. The GART aperture size has to be in the form of 2^X bytes, where X is from 25 to 31 2. The GART aperture MC base has to be aligned to a boundary equal to the size of the aperture. 3. The GART page table has to be aligned to the boundary equal to the size of the table. 4. The GART page table size is: table_entry_size * (aperture_size / page_size) 5. The GART page table has to be allocated in non-paged, non-cached, contiguous system memory. This patch takes care 2. The rest should already be handled properly. This fixes a regression noticed by: Torsten Kaiser Tested-by: Torsten Kaiser Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r300.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/radeon/r300.c') diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 7e81db5eb804..0a1638c1ba79 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -481,6 +481,7 @@ void r300_mc_init(struct radeon_device *rdev) if (rdev->flags & RADEON_IS_IGP) base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16; radeon_vram_location(rdev, &rdev->mc, base); + rdev->mc.gtt_base_align = 0; if (!(rdev->flags & RADEON_IS_AGP)) radeon_gtt_location(rdev, &rdev->mc); radeon_update_bandwidth_info(rdev); -- cgit v1.2.3 From bbb642f9c9a43dbe45ffe14935397a2a34100263 Mon Sep 17 00:00:00 2001 From: Kulikov Vasiliy Date: Fri, 16 Jul 2010 20:13:33 +0400 Subject: drm: radeon: check kzalloc() result If kzalloc() fails exit with -ENOMEM. Signed-off-by: Kulikov Vasiliy Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r300.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/gpu/drm/radeon/r300.c') diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 0a1638c1ba79..19a7ef7ee344 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -1177,6 +1177,8 @@ int r300_cs_parse(struct radeon_cs_parser *p) int r; track = kzalloc(sizeof(*track), GFP_KERNEL); + if (track == NULL) + return -ENOMEM; r100_cs_track_clear(p->rdev, track); p->track = track; do { -- cgit v1.2.3