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| author |   Ben Skeggs <bskeggs@redhat.com> | 2012-10-10 11:09:48 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2012-11-29 09:56:29 +1000 |
| commit | 6d338081a6008b3638ca45e0020c5a0cebe362fd (patch) | |
| tree | 31dbce173142500d9bb74fbeb4d8876c7c61ea7d /drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c | |
| parent | drm/nv40/fb: start bashing zcomp registers on relevant chipsets (diff) | |
| download | linux-dev-6d338081a6008b3638ca45e0020c5a0cebe362fd.tar.xz linux-dev-6d338081a6008b3638ca45e0020c5a0cebe362fd.zip | |
drm/nouveau/fb: read TILE_BASE after writing it to avoid a hardware race
Apparently needed for turbocache nv4x chips at least, we'll just do it
everywhere...
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c index c62a07781fe9..538b0de8152b 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c @@ -46,6 +46,7 @@ nv44_fb_tile_prog(struct nouveau_fb *pfb, int i, struct nouveau_fb_tile *tile) nv_wr32(pfb, 0x100604 + (i * 0x10), tile->limit); nv_wr32(pfb, 0x100608 + (i * 0x10), tile->pitch); nv_wr32(pfb, 0x100600 + (i * 0x10), tile->addr); + nv_rd32(pfb, 0x100600 + (i * 0x10)); } int |