kernel/linux.git/drivers/gpu/drm/amd/display/modules, branch v4.19.265

drm/amd/display: Limit user regamma to a valid value

2022-09-28T09:02:58+00:00

[ Upstream commit 3601d620f22e37740cf73f8278eabf9f2aa19eb7 ] [Why] For HDR mode, we get total 512 tf_point and after switching to SDR mode we actually get 400 tf_point and the rest of points(401~512) still use dirty value from HDR mode. We should limit the rest of the points to max value. [How] Limit the value when coordinates_x.x > 1, just like what we do in translate_from_linear_space for other re-gamma build paths. Tested-by: Daniel Wheeler Reviewed-by: Krunoslav Kovac Reviewed-by: Aric Cyr Acked-by: Pavle Kotarac Signed-off-by: Yao Wang1 Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Use kfree() to free rgb_user in calculate_user_regamma_ramp()

2020-07-01T03:17:14+00:00

[ Upstream commit 43a562774fceba867e8eebba977d7d42f8a2eac7 ] Use kfree() instead of kvfree() to free rgb_user in calculate_user_regamma_ramp() because the memory is allocated with kcalloc(). Signed-off-by: Denis Efremov Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: fix bug of accessing invalid memory

2018-11-21T08:19:08+00:00

[ Upstream commit 43c3ff27a47d83d153c4adc088243ba594582bf5 ] [Why] A loop inside of build_evenly_distributed_points function that traverse through the array of points become an infinite loop when m_GammaUpdates does not get assigned to any value. [How] In DMColor, clear m_gammaIsValid bit just before writting all Zeromem for m_GammaUpdates, to prevent calling build_evenly_distributed_points before m_GammaUpdates gets assigned to some value. Signed-off-by: Su Sung Chung Reviewed-by: Aric Cyr Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Implement custom degamma lut on dcn

2018-08-06T19:35:25+00:00

[Why] Custom degamma lut functions are a feature we would like to support on compatible hardware [How] In atomic check, convert from array of drm_color_lut to dc_transfer_func. On hardware commit, allow for possibility of custom degamma. Both are based on the equivalent regamma pipeline. Signed-off-by: David Francis Reviewed-by: Krunoslav Kovac Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher

drm/amd/display: Add headers for hardcoded 1d luts.

2018-07-16T21:11:48+00:00

Hard-coded luts are needed since complex algorithms are used for color and tone mapping. Add the headers for future use. Signed-off-by: Vitaly Prosyak Reviewed-by: Tony Cheng Acked-by: Leo Li Signed-off-by: Alex Deucher

drm/amd/display: Use 2-factor allocator calls

2018-07-05T21:40:03+00:00

As already done treewide, switch from open-coded multiplication to 2-factor allocation helper. Signed-off-by: Kees Cook Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

Merge branch 'drm-next-4.19' of git://people.freedesktop.org/~agd5f/linux into drm-next

2018-06-22T03:19:05+00:00

First feature request for 4.19. Highlights: - Add initial amdgpu documentation - Add initial GPU scheduler documention - GPU scheduler fixes for dying processes - Add support for the JPEG engine on VCN - Switch CI to use powerplay by default - EDC support for CZ - More powerplay cleanups - Misc DC fixes Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20180621161138.3008-1-alexander.deucher@amd.com

drm/amd/display: Disable stats by default

2018-06-15T17:24:28+00:00

Signed-off-by: Anthony Koo Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: HLG support

2018-06-15T17:20:26+00:00

Low level calculation methods. Signed-off-by: Vitaly Prosyak Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Prefix event prints with ==Event==

2018-06-15T17:20:23+00:00

Signed-off-by: Anthony Koo Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher