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| author | Mario Kleiner <mario.kleiner.de@gmail.com> | 2014-06-07 05:38:11 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-06-13 20:22:30 +0400 |
| commit | 4366f3b5f5a971cf348c298716b2cb29aab6ef4f (patch) | |
| tree | 84b5d4c51f934f314de9f2700359a6d6686e91d2 /drivers/gpu/drm/radeon/r500_reg.h | |
| parent | 8bae42769da2346f7b3c783980f038826e09e84c (diff) | |
| download | linux-4366f3b5f5a971cf348c298716b2cb29aab6ef4f.tar.xz | |
drm/radeon: Bypass hw lut's for > 8 bpc framebuffer scanout.
The hardware lut's only have 256 slots for indexing by a
8 bpc framebuffer. In 10 bpc scanout modes, framebuffer
color values would get truncated to their 8 msb's,
thereby losing the extra precision afforded by a 10 bpc
framebuffer.
To retain full precision, bypass the hw lut in 10 bpc
scanout mode.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/r500_reg.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/r500_reg.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r500_reg.h b/drivers/gpu/drm/radeon/r500_reg.h index 1dd0d32993d5..136b7bc7cd20 100644 --- a/drivers/gpu/drm/radeon/r500_reg.h +++ b/drivers/gpu/drm/radeon/r500_reg.h @@ -402,6 +402,7 @@ * block and vice versa. This applies to GRPH, CUR, etc. */ #define AVIVO_D1GRPH_LUT_SEL 0x6108 +# define AVIVO_LUT_10BIT_BYPASS_EN (1 << 8) #define AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS 0x6110 #define R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH 0x6914 #define R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH 0x6114 |