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From b55f263824318074b6838a6648afb4d2b9acda62 Mon Sep 17 00:00:00 2001
From: Vitaly Prosyak <vitaly.prosyak@amd.com>
Date: Wed, 18 Jul 2018 15:10:10 -0500
Subject: [PATCH 0029/2940] 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>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c | 6 ++++--
.../gpu/drm/amd/display/modules/color/color_gamma.c | 10 +++++-----
.../gpu/drm/amd/display/modules/color/color_gamma.h | 5 +++--
3 files changed, 12 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
index 326f6fb7e0bc..be19e6861189 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
@@ -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;
diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
index 962900932bee..2a6f0300cc7f 100644
--- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
+++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
@@ -1356,7 +1356,7 @@ 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;
@@ -1372,7 +1372,7 @@ 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;
@@ -1434,7 +1434,6 @@ 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,
@@ -1663,7 +1662,8 @@ 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;
@@ -1697,7 +1697,7 @@ 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;
diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.h b/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
index b64048991a95..63ccb9c91224 100644
--- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
+++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
@@ -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);
--
2.17.1
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