diff options
| author | Matt Roper <matthew.d.roper@intel.com> | 2019-01-30 10:10:22 -0800 |
|---|---|---|
| committer | Matt Roper <matthew.d.roper@intel.com> | 2019-01-30 17:09:45 -0800 |
| commit | e4c0d5314dede34ac48257cbdd4b3a046b2415df (patch) | |
| tree | faba29a4ad5b8a3c4a4bae85a2322831b40903a6 /drivers/gpu/drm/i915/i915_pci.c | |
| parent | c0550305fcbd82c0b0d094e385551d9c63fc8852 (diff) | |
| download | linux-stable-e4c0d5314dede34ac48257cbdd4b3a046b2415df.tar.gz linux-stable-e4c0d5314dede34ac48257cbdd4b3a046b2415df.tar.bz2 linux-stable-e4c0d5314dede34ac48257cbdd4b3a046b2415df.zip | |
drm/i915: Apply LUT validation checks to platforms more accurately (v3)
Use of the new DRM_COLOR_LUT_NON_DECREASING test was a bit over-zealous;
it doesn't actually need to be applied to the degamma on "bdw-style"
platforms. Likewise, we overlooked the fact that CHV should have that
test applied to the gamma LUT as well as the degamma LUT.
Rather than adding more complicated platform checking to
intel_color_check(), let's just store the appropriate set of LUT
validation flags for each platform in the intel_device_info structure.
v2:
- Shuffle around LUT size tests so that the hardware-specific tests
won't be applied to legacy gamma tables. (Ville)
- Add a debug message so that it will be easier to understand why an
atomic transaction involving incorrectly-sized LUT's got rejected
by the driver.
v3:
- Switch size_t's to int's. (Ville)
Fixes: 85e2d61e4976 ("drm/i915: Validate userspace-provided color management LUT's (v4)")
References: https://lists.freedesktop.org/archives/intel-gfx/2019-January/187634.html
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190130181022.4291-1-matthew.d.roper@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_pci.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_pci.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index dd4aff2b256e..6f7ad10f34b8 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -67,9 +67,15 @@ #define BDW_COLORS \ .color = { .degamma_lut_size = 512, .gamma_lut_size = 512 } #define CHV_COLORS \ - .color = { .degamma_lut_size = 65, .gamma_lut_size = 257 } + .color = { .degamma_lut_size = 65, .gamma_lut_size = 257, \ + .degamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING, \ + .gamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING, \ + } #define GLK_COLORS \ - .color = { .degamma_lut_size = 0, .gamma_lut_size = 1024 } + .color = { .degamma_lut_size = 0, .gamma_lut_size = 1024, \ + .degamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING | \ + DRM_COLOR_LUT_EQUAL_CHANNELS, \ + } /* Keep in gen based order, and chronological order within a gen */ |