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radeon: fix r600/agp when vram is after AGP (v3)

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If AGP is placed in the middle, the size_af is off-by-one, it results
in VRAM being placed at 0x7fffffff instead of 0x8000000.

v2: fix the vram_start setup.
v3: also fix r7xx & newer ASIC

Reported-by: russiane39 on #radeon

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jerome Glisse 2012-04-17 16:51:38 -04:00 committed by Dave Airlie
parent aef6a7eeac
commit dfc6ae5bd7
2 changed files with 4 additions and 4 deletions
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4
drivers/gpu/drm/radeon/r600.c
View file

@ -1135,7 +1135,7 @@ static void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc
}
if (rdev->flags & RADEON_IS_AGP) {
size_bf = mc->gtt_start;
size_af = 0xFFFFFFFF - mc->gtt_end + 1;
size_af = 0xFFFFFFFF - mc->gtt_end;
if (size_bf > size_af) {
if (mc->mc_vram_size > size_bf) {
dev_warn(rdev->dev, "limiting VRAM\n");
@ -1149,7 +1149,7 @@ static void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc
mc->real_vram_size = size_af;
mc->mc_vram_size = size_af;
}
mc->vram_start = mc->gtt_end;
mc->vram_start = mc->gtt_end + 1;
}
mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n",

4
drivers/gpu/drm/radeon/rv770.c
View file

@ -969,7 +969,7 @@ void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
}
if (rdev->flags & RADEON_IS_AGP) {
size_bf = mc->gtt_start;
size_af = 0xFFFFFFFF - mc->gtt_end + 1;
size_af = 0xFFFFFFFF - mc->gtt_end;
if (size_bf > size_af) {
if (mc->mc_vram_size > size_bf) {
dev_warn(rdev->dev, "limiting VRAM\n");
@ -983,7 +983,7 @@ void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
mc->real_vram_size = size_af;
mc->mc_vram_size = size_af;
}
mc->vram_start = mc->gtt_end;
mc->vram_start = mc->gtt_end + 1;
}
mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n",