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>
This commit is contained in:
Vitaly Prosyak 2018-07-18 15:10:10 -05:00 committed by Alex Deucher
parent d02e07948f
commit dc6c981d20
3 changed files with 12 additions and 9 deletions
drivers/gpu/drm/amd/display

View File

@ -22,7 +22,7 @@
* Authors: AMD
*
*/
#include "amdgpu.h"
#include "amdgpu_mode.h"
#include "amdgpu_dm.h"
#include "dc.h"
@ -122,6 +122,8 @@ int amdgpu_dm_set_regamma_lut(struct dm_crtc_state *crtc)
{
struct drm_property_blob *blob = crtc->base.gamma_lut;
struct dc_stream_state *stream = crtc->stream;
struct amdgpu_device *adev = (struct amdgpu_device *)
crtc->base.state->dev->dev_private;
struct drm_color_lut *lut;
uint32_t lut_size;
struct dc_gamma *gamma;
@ -162,7 +164,7 @@ int amdgpu_dm_set_regamma_lut(struct dm_crtc_state *crtc)
*/
stream->out_transfer_func->type = TF_TYPE_DISTRIBUTED_POINTS;
ret = mod_color_calculate_regamma_params(stream->out_transfer_func,
gamma, true);
gamma, true, adev->asic_type <= CHIP_RAVEN);
dc_gamma_release(&gamma);
if (!ret) {
stream->out_transfer_func->type = old_type;

View File

@ -1352,7 +1352,7 @@ static bool map_regamma_hw_to_x_user(
#define _EXTRA_POINTS 3
bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
const struct dc_gamma *ramp, bool mapUserRamp)
const struct dc_gamma *ramp, bool mapUserRamp, bool canRomBeUsed)
{
struct dc_transfer_func_distributed_points *tf_pts = &output_tf->tf_pts;
struct dividers dividers;
@ -1368,7 +1368,7 @@ bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
return false;
/* we can use hardcoded curve for plain SRGB TF */
if (output_tf->type == TF_TYPE_PREDEFINED &&
if (output_tf->type == TF_TYPE_PREDEFINED && canRomBeUsed == true &&
output_tf->tf == TRANSFER_FUNCTION_SRGB &&
(!mapUserRamp && ramp->type == GAMMA_RGB_256))
return true;
@ -1430,7 +1430,6 @@ bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
MAX_HW_POINTS,
coordinates_x, tf == TRANSFER_FUNCTION_SRGB ? true:false);
}
map_regamma_hw_to_x_user(ramp, coeff, rgb_user,
coordinates_x, axix_x, rgb_regamma,
MAX_HW_POINTS, tf_pts,
@ -1659,7 +1658,8 @@ bool mod_color_calculate_degamma_params(struct dc_transfer_func *input_tf,
bool mod_color_calculate_curve(enum dc_transfer_func_predefined trans,
struct dc_transfer_func_distributed_points *points)
struct dc_transfer_func_distributed_points *points,
uint32_t sdr_ref_white_level)
{
uint32_t i;
bool ret = false;
@ -1693,7 +1693,7 @@ bool mod_color_calculate_curve(enum dc_transfer_func_predefined trans,
build_pq(rgb_regamma,
MAX_HW_POINTS,
coordinates_x,
80);
sdr_ref_white_level);
for (i = 0; i <= MAX_HW_POINTS ; i++) {
points->red[i] = rgb_regamma[i].r;
points->green[i] = rgb_regamma[i].g;

View File

@ -78,13 +78,14 @@ void precompute_pq(void);
void precompute_de_pq(void);
bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
const struct dc_gamma *ramp, bool mapUserRamp);
const struct dc_gamma *ramp, bool mapUserRamp, bool canRomBeUsed);
bool mod_color_calculate_degamma_params(struct dc_transfer_func *output_tf,
const struct dc_gamma *ramp, bool mapUserRamp);
bool mod_color_calculate_curve(enum dc_transfer_func_predefined trans,
struct dc_transfer_func_distributed_points *points);
struct dc_transfer_func_distributed_points *points,
uint32_t sdr_ref_white_level);
bool mod_color_calculate_degamma_curve(enum dc_transfer_func_predefined trans,
struct dc_transfer_func_distributed_points *points);