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 | 294 |
1 files changed, 293 insertions, 1 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 7f579cb19f4b..53ba3600ee6a 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 @@ -22,11 +22,12 @@ * Authors: AMD * */ - +#include "dc.h" #include "reg_helper.h" #include "dcn10_dpp.h" #include "dcn10_cm_common.h" +#include "custom_float.h" #define REG(reg) reg @@ -121,3 +122,294 @@ void cm_helper_program_xfer_func( } } + + + +bool cm_helper_convert_to_custom_float( + struct pwl_result_data *rgb_resulted, + struct curve_points *arr_points, + uint32_t hw_points_num, + bool fixpoint) +{ + struct custom_float_format fmt; + + struct pwl_result_data *rgb = rgb_resulted; + + uint32_t i = 0; + + fmt.exponenta_bits = 6; + fmt.mantissa_bits = 12; + fmt.sign = false; + + if (!convert_to_custom_float_format(arr_points[0].x, &fmt, + &arr_points[0].custom_float_x)) { + BREAK_TO_DEBUGGER(); + return false; + } + + if (!convert_to_custom_float_format(arr_points[0].offset, &fmt, + &arr_points[0].custom_float_offset)) { + BREAK_TO_DEBUGGER(); + return false; + } + + if (!convert_to_custom_float_format(arr_points[0].slope, &fmt, + &arr_points[0].custom_float_slope)) { + BREAK_TO_DEBUGGER(); + return false; + } + + fmt.mantissa_bits = 10; + fmt.sign = false; + + if (!convert_to_custom_float_format(arr_points[1].x, &fmt, + &arr_points[1].custom_float_x)) { + BREAK_TO_DEBUGGER(); + return false; + } + + if (fixpoint == true) + arr_points[1].custom_float_y = dal_fixed31_32_clamp_u0d14(arr_points[1].y); + else if (!convert_to_custom_float_format(arr_points[1].y, &fmt, + &arr_points[1].custom_float_y)) { + BREAK_TO_DEBUGGER(); + return false; + } + + if (!convert_to_custom_float_format(arr_points[1].slope, &fmt, + &arr_points[1].custom_float_slope)) { + BREAK_TO_DEBUGGER(); + return false; + } + + if (hw_points_num == 0 || rgb_resulted == NULL || fixpoint == true) + return true; + + fmt.mantissa_bits = 12; + fmt.sign = true; + + while (i != hw_points_num) { + if (!convert_to_custom_float_format(rgb->red, &fmt, + &rgb->red_reg)) { + BREAK_TO_DEBUGGER(); + return false; + } + + if (!convert_to_custom_float_format(rgb->green, &fmt, + &rgb->green_reg)) { + BREAK_TO_DEBUGGER(); + return false; + } + + if (!convert_to_custom_float_format(rgb->blue, &fmt, + &rgb->blue_reg)) { + BREAK_TO_DEBUGGER(); + return false; + } + + if (!convert_to_custom_float_format(rgb->delta_red, &fmt, + &rgb->delta_red_reg)) { + BREAK_TO_DEBUGGER(); + return false; + } + + if (!convert_to_custom_float_format(rgb->delta_green, &fmt, + &rgb->delta_green_reg)) { + BREAK_TO_DEBUGGER(); + return false; + } + + if (!convert_to_custom_float_format(rgb->delta_blue, &fmt, + &rgb->delta_blue_reg)) { + BREAK_TO_DEBUGGER(); + return false; + } + + ++rgb; + ++i; + } + + return true; +} + + +#define MAX_REGIONS_NUMBER 34 +#define MAX_LOW_POINT 25 +#define NUMBER_SEGMENTS 32 + +bool cm_helper_translate_curve_to_hw_format( + const struct dc_transfer_func *output_tf, + struct pwl_params *lut_params, bool fixpoint) +{ + struct curve_points *arr_points; + struct pwl_result_data *rgb_resulted; + struct pwl_result_data *rgb; + struct pwl_result_data *rgb_plus_1; + struct fixed31_32 y_r; + struct fixed31_32 y_g; + struct fixed31_32 y_b; + struct fixed31_32 y1_min; + struct fixed31_32 y3_max; + + int32_t segment_start, segment_end; + int32_t i; + uint32_t j, k, seg_distr[MAX_REGIONS_NUMBER], increment, start_index, hw_points; + + if (output_tf == NULL || lut_params == NULL || output_tf->type == TF_TYPE_BYPASS) + return false; + + PERF_TRACE(); + + arr_points = lut_params->arr_points; + rgb_resulted = lut_params->rgb_resulted; + hw_points = 0; + + memset(lut_params, 0, sizeof(struct pwl_params)); + memset(seg_distr, 0, sizeof(seg_distr)); + + if (output_tf->tf == TRANSFER_FUNCTION_PQ) { + /* 32 segments + * segments are from 2^-25 to 2^7 + */ + for (i = 0; i < 32 ; i++) + seg_distr[i] = 3; + + segment_start = -25; + segment_end = 7; + } else { + /* 10 segments + * segment is from 2^-10 to 2^0 + * There are less than 256 points, for optimization + */ + seg_distr[0] = 3; + seg_distr[1] = 4; + seg_distr[2] = 4; + seg_distr[3] = 4; + seg_distr[4] = 4; + seg_distr[5] = 4; + seg_distr[6] = 4; + seg_distr[7] = 4; + seg_distr[8] = 5; + seg_distr[9] = 5; + + segment_start = -10; + segment_end = 0; + } + + for (i = segment_end - segment_start; i < MAX_REGIONS_NUMBER ; i++) + seg_distr[i] = -1; + + for (k = 0; k < MAX_REGIONS_NUMBER; k++) { + if (seg_distr[k] != -1) + hw_points += (1 << seg_distr[k]); + } + + 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) { + if (j == hw_points - 1) + break; + rgb_resulted[j].red = output_tf->tf_pts.red[i]; + rgb_resulted[j].green = output_tf->tf_pts.green[i]; + rgb_resulted[j].blue = output_tf->tf_pts.blue[i]; + j++; + } + } + + /* last point */ + start_index = (segment_end + MAX_LOW_POINT) * NUMBER_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)); + arr_points[1].x = dal_fixed31_32_pow(dal_fixed31_32_from_int(2), + dal_fixed31_32_from_int(segment_end)); + + y_r = rgb_resulted[0].red; + y_g = rgb_resulted[0].green; + y_b = rgb_resulted[0].blue; + + y1_min = dal_fixed31_32_min(y_r, dal_fixed31_32_min(y_g, y_b)); + + arr_points[0].y = y1_min; + arr_points[0].slope = dal_fixed31_32_div(arr_points[0].y, arr_points[0].x); + y_r = rgb_resulted[hw_points - 1].red; + y_g = rgb_resulted[hw_points - 1].green; + y_b = rgb_resulted[hw_points - 1].blue; + + /* see comment above, m_arrPoints[1].y should be the Y value for the + * region end (m_numOfHwPoints), not last HW point(m_numOfHwPoints - 1) + */ + y3_max = dal_fixed31_32_max(y_r, dal_fixed31_32_max(y_g, y_b)); + + arr_points[1].y = y3_max; + + arr_points[1].slope = dal_fixed31_32_zero; + + if (output_tf->tf == TRANSFER_FUNCTION_PQ) { + /* for PQ, we want to have a straight line from last HW X point, + * and the slope to be such that we hit 1.0 at 10000 nits. + */ + const struct fixed31_32 end_value = + dal_fixed31_32_from_int(125); + + arr_points[1].slope = dal_fixed31_32_div( + dal_fixed31_32_sub(dal_fixed31_32_one, arr_points[1].y), + dal_fixed31_32_sub(end_value, arr_points[1].x)); + } + + lut_params->hw_points_num = hw_points; + + i = 1; + for (k = 0; k < MAX_REGIONS_NUMBER && i < MAX_REGIONS_NUMBER; k++) { + if (seg_distr[k] != -1) { + lut_params->arr_curve_points[k].segments_num = + seg_distr[k]; + lut_params->arr_curve_points[i].offset = + lut_params->arr_curve_points[k].offset + (1 << seg_distr[k]); + } + i++; + } + + if (seg_distr[k] != -1) + lut_params->arr_curve_points[k].segments_num = seg_distr[k]; + + rgb = rgb_resulted; + rgb_plus_1 = rgb_resulted + 1; + + i = 1; + while (i != hw_points + 1) { + if (dal_fixed31_32_lt(rgb_plus_1->red, rgb->red)) + rgb_plus_1->red = rgb->red; + if (dal_fixed31_32_lt(rgb_plus_1->green, rgb->green)) + rgb_plus_1->green = rgb->green; + if (dal_fixed31_32_lt(rgb_plus_1->blue, rgb->blue)) + rgb_plus_1->blue = rgb->blue; + + rgb->delta_red = dal_fixed31_32_sub(rgb_plus_1->red, rgb->red); + rgb->delta_green = dal_fixed31_32_sub(rgb_plus_1->green, rgb->green); + rgb->delta_blue = dal_fixed31_32_sub(rgb_plus_1->blue, rgb->blue); + + if (fixpoint == true) { + rgb->delta_red_reg = dal_fixed31_32_clamp_u0d10(rgb->delta_red); + rgb->delta_green_reg = dal_fixed31_32_clamp_u0d10(rgb->delta_green); + rgb->delta_blue_reg = dal_fixed31_32_clamp_u0d10(rgb->delta_blue); + rgb->red_reg = dal_fixed31_32_clamp_u0d14(rgb->red); + rgb->green_reg = dal_fixed31_32_clamp_u0d14(rgb->green); + rgb->blue_reg = dal_fixed31_32_clamp_u0d14(rgb->blue); + } + + ++rgb_plus_1; + ++rgb; + ++i; + } + cm_helper_convert_to_custom_float(rgb_resulted, + lut_params->arr_points, + hw_points, fixpoint); + + return true; +} |