diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c | 39 |
1 files changed, 21 insertions, 18 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c index 53ba3600ee6a..b3db6397d353 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c @@ -232,10 +232,11 @@ bool cm_helper_convert_to_custom_float( return true; } - +/* driver uses 32 regions or less, but DCN HW has 34, extra 2 are set to 0 */ #define MAX_REGIONS_NUMBER 34 #define MAX_LOW_POINT 25 -#define NUMBER_SEGMENTS 32 +#define NUMBER_REGIONS 32 +#define NUMBER_SW_SEGMENTS 16 bool cm_helper_translate_curve_to_hw_format( const struct dc_transfer_func *output_tf, @@ -251,7 +252,7 @@ bool cm_helper_translate_curve_to_hw_format( struct fixed31_32 y1_min; struct fixed31_32 y3_max; - int32_t segment_start, segment_end; + int32_t region_start, region_end; int32_t i; uint32_t j, k, seg_distr[MAX_REGIONS_NUMBER], increment, start_index, hw_points; @@ -271,11 +272,11 @@ bool cm_helper_translate_curve_to_hw_format( /* 32 segments * segments are from 2^-25 to 2^7 */ - for (i = 0; i < 32 ; i++) + for (i = 0; i < NUMBER_REGIONS ; i++) seg_distr[i] = 3; - segment_start = -25; - segment_end = 7; + region_start = -MAX_LOW_POINT; + region_end = NUMBER_REGIONS - MAX_LOW_POINT; } else { /* 10 segments * segment is from 2^-10 to 2^0 @@ -289,14 +290,14 @@ bool cm_helper_translate_curve_to_hw_format( seg_distr[5] = 4; seg_distr[6] = 4; seg_distr[7] = 4; - seg_distr[8] = 5; - seg_distr[9] = 5; + seg_distr[8] = 4; + seg_distr[9] = 4; - segment_start = -10; - segment_end = 0; + region_start = -10; + region_end = 0; } - for (i = segment_end - segment_start; i < MAX_REGIONS_NUMBER ; i++) + for (i = region_end - region_start; i < MAX_REGIONS_NUMBER ; i++) seg_distr[i] = -1; for (k = 0; k < MAX_REGIONS_NUMBER; k++) { @@ -305,10 +306,12 @@ bool cm_helper_translate_curve_to_hw_format( } j = 0; - for (k = 0; k < (segment_end - segment_start); k++) { - increment = NUMBER_SEGMENTS / (1 << seg_distr[k]); - start_index = (segment_start + k + MAX_LOW_POINT) * NUMBER_SEGMENTS; - for (i = start_index; i < start_index + NUMBER_SEGMENTS; i += increment) { + for (k = 0; k < (region_end - region_start); k++) { + increment = NUMBER_SW_SEGMENTS / (1 << seg_distr[k]); + start_index = (region_start + k + MAX_LOW_POINT) * + NUMBER_SW_SEGMENTS; + for (i = start_index; i < start_index + NUMBER_SW_SEGMENTS; + i += increment) { if (j == hw_points - 1) break; rgb_resulted[j].red = output_tf->tf_pts.red[i]; @@ -319,15 +322,15 @@ bool cm_helper_translate_curve_to_hw_format( } /* last point */ - start_index = (segment_end + MAX_LOW_POINT) * NUMBER_SEGMENTS; + start_index = (region_end + MAX_LOW_POINT) * NUMBER_SW_SEGMENTS; rgb_resulted[hw_points - 1].red = output_tf->tf_pts.red[start_index]; rgb_resulted[hw_points - 1].green = output_tf->tf_pts.green[start_index]; rgb_resulted[hw_points - 1].blue = output_tf->tf_pts.blue[start_index]; arr_points[0].x = dal_fixed31_32_pow(dal_fixed31_32_from_int(2), - dal_fixed31_32_from_int(segment_start)); + dal_fixed31_32_from_int(region_start)); arr_points[1].x = dal_fixed31_32_pow(dal_fixed31_32_from_int(2), - dal_fixed31_32_from_int(segment_end)); + dal_fixed31_32_from_int(region_end)); y_r = rgb_resulted[0].red; y_g = rgb_resulted[0].green; |