diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2014-09-20 17:39:00 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2014-09-20 17:42:25 +1000 |
| commit | fe3d9c4b87bb98222a502cc585844a0b950786fb (patch) | |
| tree | 97d108065398a21e53af28a39c956a03e46baa13 /drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c | |
| parent | 92a32a4722b7c85377775f5ae987c7ae0c4ed67e (diff) | |
| download | linux-fe3d9c4b87bb98222a502cc585844a0b950786fb.tar.bz2 | |
drm/nouveau: ltc/gf100-: fix cbc issues on certain boards
A mismatch between FB and LTC's idea of how big a large page is causes
issues such as black "holes" in rendering to occur on some boards
(those where LTC is configured for 64KiB large pages) when compression
is used.
Confirmed to fix at least the GK107 MBP.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c b/drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c index b54b582e72c4..d5d65285efe5 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c +++ b/drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c @@ -98,6 +98,7 @@ static int gf100_ltc_init(struct nouveau_object *object) { struct nvkm_ltc_priv *priv = (void *)object; + u32 lpg128 = !(nv_rd32(priv, 0x100c80) & 0x00000001); int ret; ret = nvkm_ltc_init(priv); @@ -107,6 +108,7 @@ gf100_ltc_init(struct nouveau_object *object) nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */ nv_wr32(priv, 0x17e8d8, priv->ltc_nr); nv_wr32(priv, 0x17e8d4, priv->tag_base); + nv_mask(priv, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000); return 0; } |