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drm/amd/display: Use DGAM ROM or RAM
[Why] Optimize gamma programming [How] Use ROM for optimization when it is possible. Use RAM only when it is necessary. Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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d02e07948f
commit
dc6c981d20
drivers/gpu/drm/amd/display
@ -22,7 +22,7 @@
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* Authors: AMD
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*
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*/
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#include "amdgpu.h"
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#include "amdgpu_mode.h"
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#include "amdgpu_dm.h"
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#include "dc.h"
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@ -122,6 +122,8 @@ int amdgpu_dm_set_regamma_lut(struct dm_crtc_state *crtc)
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{
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struct drm_property_blob *blob = crtc->base.gamma_lut;
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struct dc_stream_state *stream = crtc->stream;
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struct amdgpu_device *adev = (struct amdgpu_device *)
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crtc->base.state->dev->dev_private;
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struct drm_color_lut *lut;
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uint32_t lut_size;
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struct dc_gamma *gamma;
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@ -162,7 +164,7 @@ int amdgpu_dm_set_regamma_lut(struct dm_crtc_state *crtc)
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*/
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stream->out_transfer_func->type = TF_TYPE_DISTRIBUTED_POINTS;
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ret = mod_color_calculate_regamma_params(stream->out_transfer_func,
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gamma, true);
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gamma, true, adev->asic_type <= CHIP_RAVEN);
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dc_gamma_release(&gamma);
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if (!ret) {
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stream->out_transfer_func->type = old_type;
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@ -1352,7 +1352,7 @@ static bool map_regamma_hw_to_x_user(
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#define _EXTRA_POINTS 3
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bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
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const struct dc_gamma *ramp, bool mapUserRamp)
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const struct dc_gamma *ramp, bool mapUserRamp, bool canRomBeUsed)
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{
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struct dc_transfer_func_distributed_points *tf_pts = &output_tf->tf_pts;
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struct dividers dividers;
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@ -1368,7 +1368,7 @@ bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
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return false;
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/* we can use hardcoded curve for plain SRGB TF */
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if (output_tf->type == TF_TYPE_PREDEFINED &&
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if (output_tf->type == TF_TYPE_PREDEFINED && canRomBeUsed == true &&
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output_tf->tf == TRANSFER_FUNCTION_SRGB &&
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(!mapUserRamp && ramp->type == GAMMA_RGB_256))
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return true;
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@ -1430,7 +1430,6 @@ bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
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MAX_HW_POINTS,
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coordinates_x, tf == TRANSFER_FUNCTION_SRGB ? true:false);
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}
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map_regamma_hw_to_x_user(ramp, coeff, rgb_user,
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coordinates_x, axix_x, rgb_regamma,
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MAX_HW_POINTS, tf_pts,
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@ -1659,7 +1658,8 @@ bool mod_color_calculate_degamma_params(struct dc_transfer_func *input_tf,
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bool mod_color_calculate_curve(enum dc_transfer_func_predefined trans,
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struct dc_transfer_func_distributed_points *points)
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struct dc_transfer_func_distributed_points *points,
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uint32_t sdr_ref_white_level)
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{
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uint32_t i;
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bool ret = false;
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@ -1693,7 +1693,7 @@ bool mod_color_calculate_curve(enum dc_transfer_func_predefined trans,
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build_pq(rgb_regamma,
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MAX_HW_POINTS,
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coordinates_x,
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80);
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sdr_ref_white_level);
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for (i = 0; i <= MAX_HW_POINTS ; i++) {
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points->red[i] = rgb_regamma[i].r;
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points->green[i] = rgb_regamma[i].g;
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@ -78,13 +78,14 @@ void precompute_pq(void);
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void precompute_de_pq(void);
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bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
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const struct dc_gamma *ramp, bool mapUserRamp);
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const struct dc_gamma *ramp, bool mapUserRamp, bool canRomBeUsed);
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bool mod_color_calculate_degamma_params(struct dc_transfer_func *output_tf,
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const struct dc_gamma *ramp, bool mapUserRamp);
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bool mod_color_calculate_curve(enum dc_transfer_func_predefined trans,
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struct dc_transfer_func_distributed_points *points);
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struct dc_transfer_func_distributed_points *points,
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uint32_t sdr_ref_white_level);
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bool mod_color_calculate_degamma_curve(enum dc_transfer_func_predefined trans,
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struct dc_transfer_func_distributed_points *points);
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