| commit | 16cdf04d30c24a6e698863351c11d9a8da2591ed | |
| author | Alex Deucher <alexander.deucher@amd.com> | |
| Fri, 28 Oct 2011 14:30:02 +0000 (28 10:30 -0400) | ||
| committer | Dave Airlie <airlied@redhat.com> | |
| Tue, 1 Nov 2011 16:05:02 +0000 (1 16:05 +0000) | ||
| tree | f104a8d49318daebd1e598d03eb1455e09288621 | treesnapshot (tar.gz zip) |
| parent | 996d5c59006cd970dd3a9007aa1f76532909bae2 | commitdiff |
drm/radeon/kms: allocate vram scratch page on 6xx+
The vram scratch was originally only used on some 7xx asics
to work around a hw bug. Allocate the scratch page on all 6xx+
radeons and set the MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR to point
to it. We shouldn't ever hit it since we limit the system
aperture to vram or vram and AGP, but better safe than sorry.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The vram scratch was originally only used on some 7xx asics
to work around a hw bug. Allocate the scratch page on all 6xx+
radeons and set the MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR to point
to it. We shouldn't ever hit it since we limit the system
aperture to vram or vram and AGP, but better safe than sorry.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>