diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0075-drm-amd-display-Fix-distribution-of-segments-for-PQ.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0075-drm-amd-display-Fix-distribution-of-segments-for-PQ.patch | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0075-drm-amd-display-Fix-distribution-of-segments-for-PQ.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0075-drm-amd-display-Fix-distribution-of-segments-for-PQ.patch new file mode 100644 index 00000000..02000d99 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0075-drm-amd-display-Fix-distribution-of-segments-for-PQ.patch @@ -0,0 +1,95 @@ +From dcbd3c03aa29210c440812be3d2928f248e89a74 Mon Sep 17 00:00:00 2001 +From: Anthony Koo <Anthony.Koo@amd.com> +Date: Fri, 16 Dec 2016 12:12:03 -0500 +Subject: [PATCH 0075/4131] drm/amd/display: Fix distribution of segments for + PQ + +For PQ case, redistribution of segments should be done differently +for FP16 case in order to handle content above FP16 value of 1.0 + +Signed-off-by: Anthony Koo <anthony.koo@amd.com> +Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> +Acked-by: Harry Wentland <Harry.Wentland@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/calcs/gamma_calcs.c | 51 ++++++++++++++++++++-- + 1 file changed, 48 insertions(+), 3 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/calcs/gamma_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/gamma_calcs.c +index 973be8f..729652a 100644 +--- a/drivers/gpu/drm/amd/display/dc/calcs/gamma_calcs.c ++++ b/drivers/gpu/drm/amd/display/dc/calcs/gamma_calcs.c +@@ -387,6 +387,49 @@ static bool build_hw_curve_configuration( + return result; + } + ++static bool setup_distribution_points_pq( ++ struct gamma_curve *arr_curve_points, ++ struct curve_points *arr_points, ++ uint32_t *hw_points_num, ++ struct hw_x_point *coordinates_x, ++ enum surface_pixel_format format) ++{ ++ struct curve_config cfg; ++ ++ cfg.offset = 0; ++ cfg.segments[0] = 2; ++ cfg.segments[1] = 2; ++ cfg.segments[2] = 2; ++ cfg.segments[3] = 2; ++ cfg.segments[4] = 2; ++ cfg.segments[5] = 2; ++ cfg.segments[6] = 3; ++ cfg.segments[7] = 4; ++ cfg.segments[8] = 4; ++ cfg.segments[9] = 4; ++ cfg.segments[10] = 4; ++ cfg.segments[11] = 5; ++ cfg.segments[12] = 5; ++ cfg.segments[13] = 5; ++ cfg.segments[14] = 5; ++ cfg.segments[15] = 5; ++ ++ if (format == SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616F || ++ format == SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616F) ++ cfg.begin = -11; ++ else ++ cfg.begin = -16; ++ ++ if (!build_hw_curve_configuration( ++ &cfg, arr_curve_points, ++ arr_points, ++ coordinates_x, hw_points_num)) { ++ ASSERT_CRITICAL(false); ++ return false; ++ } ++ return true; ++} ++ + static bool setup_distribution_points( + struct gamma_curve *arr_curve_points, + struct curve_points *arr_points, +@@ -1414,15 +1457,17 @@ bool calculate_regamma_params(struct pwl_params *params, + + scale_gamma(rgb_user, ramp, dividers); + +- setup_distribution_points(arr_curve_points, arr_points, +- ¶ms->hw_points_num, coordinates_x); +- + if (stream->public.out_transfer_func && + stream->public.out_transfer_func->tf == TRANSFER_FUNCTION_PQ) { ++ setup_distribution_points_pq(arr_curve_points, arr_points, ++ ¶ms->hw_points_num, coordinates_x, ++ surface->public.format); + build_regamma_curve_pq(rgb_regamma, rgb_oem, coeff128_oem, + ramp, surface, params->hw_points_num, + coordinates_x, axix_x_256, dividers); + } else { ++ setup_distribution_points(arr_curve_points, arr_points, ++ ¶ms->hw_points_num, coordinates_x); + build_regamma_curve(rgb_regamma, rgb_oem, coeff128_oem, + ramp, surface, params->hw_points_num, + coordinates_x, axix_x_256, dividers); +-- +2.7.4 + |