From: Dave Airlie <airlied@xxxxxxxxxx>
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.
Reported-by: russiane39 on #radeon
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
---
drivers/gpu/drm/radeon/r600.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 4added1..121944c 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -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");
--
1.7.7.6
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