[PATCH 36/36] drm/amd/display: allow newer DC hardware to use degamma ROM for PQ/HLG
Melissa Wen
mwen at igalia.com
Tue May 23 22:15:20 UTC 2023
From: Joshua Ashton <joshua at froggi.es>
Need to funnel the color caps through to these functions so it can check
that the hardware is capable.
Signed-off-by: Joshua Ashton <joshua at froggi.es>
Signed-off-by: Melissa Wen <mwen at igalia.com>
---
.../amd/display/amdgpu_dm/amdgpu_dm_color.c | 35 ++++++++++++-------
1 file changed, 23 insertions(+), 12 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 4a2b66568451..714f07bb9c9c 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
@@ -338,6 +338,7 @@ static int amdgpu_dm_set_atomic_regamma(struct dc_stream_state *stream,
/**
* __set_input_tf - calculates the input transfer function based on expected
* input space.
+ * @caps: dc color capabilities
* @func: transfer function
* @lut: lookup table that defines the color space
* @lut_size: size of respective lut.
@@ -345,7 +346,7 @@ static int amdgpu_dm_set_atomic_regamma(struct dc_stream_state *stream,
* Returns:
* 0 in case of success. -ENOMEM if fails.
*/
-static int __set_input_tf(struct dc_transfer_func *func,
+static int __set_input_tf(struct dc_color_caps *caps, struct dc_transfer_func *func,
const struct drm_color_lut *lut, uint32_t lut_size)
{
struct dc_gamma *gamma = NULL;
@@ -362,7 +363,7 @@ static int __set_input_tf(struct dc_transfer_func *func,
__drm_lut_to_dc_gamma(lut, gamma, false);
}
- res = mod_color_calculate_degamma_params(NULL, func, gamma, gamma != NULL);
+ res = mod_color_calculate_degamma_params(caps, func, gamma, gamma != NULL);
if (gamma)
dc_gamma_release(&gamma);
@@ -511,7 +512,7 @@ static int amdgpu_dm_atomic_blend_lut(const struct drm_color_lut *blend_lut,
func_blend->tf = tf;
func_blend->sdr_ref_white_level = SDR_WHITE_LEVEL_INIT_VALUE;
- ret = __set_input_tf(func_blend, blend_lut, blend_size);
+ ret = __set_input_tf(NULL, func_blend, blend_lut, blend_size);
} else {
func_blend->type = TF_TYPE_BYPASS;
func_blend->tf = TRANSFER_FUNCTION_LINEAR;
@@ -818,7 +819,8 @@ int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state *crtc,
static int
map_crtc_degamma_to_dc_plane(struct dm_crtc_state *crtc,
- struct dc_plane_state *dc_plane_state)
+ struct dc_plane_state *dc_plane_state,
+ struct dc_color_caps *caps)
{
const struct drm_color_lut *degamma_lut;
enum dc_transfer_func_predefined tf = TRANSFER_FUNCTION_SRGB;
@@ -873,7 +875,7 @@ map_crtc_degamma_to_dc_plane(struct dm_crtc_state *crtc,
dc_plane_state->in_transfer_func->tf =
TRANSFER_FUNCTION_LINEAR;
- r = __set_input_tf(dc_plane_state->in_transfer_func,
+ r = __set_input_tf(caps, dc_plane_state->in_transfer_func,
degamma_lut, degamma_size);
if (r)
return r;
@@ -886,7 +888,7 @@ map_crtc_degamma_to_dc_plane(struct dm_crtc_state *crtc,
dc_plane_state->in_transfer_func->tf = tf;
if (tf != TRANSFER_FUNCTION_SRGB &&
- !mod_color_calculate_degamma_params(NULL,
+ !mod_color_calculate_degamma_params(caps,
dc_plane_state->in_transfer_func,
NULL, false))
return -ENOMEM;
@@ -897,7 +899,8 @@ map_crtc_degamma_to_dc_plane(struct dm_crtc_state *crtc,
static int
__set_dm_plane_degamma(struct drm_plane_state *plane_state,
- struct dc_plane_state *dc_plane_state)
+ struct dc_plane_state *dc_plane_state,
+ struct dc_color_caps *color_caps)
{
struct dm_plane_state *dm_plane_state = to_dm_plane_state(plane_state);
const struct drm_color_lut *degamma_lut;
@@ -906,6 +909,9 @@ __set_dm_plane_degamma(struct drm_plane_state *plane_state,
bool has_degamma_lut;
int ret;
+ if (dc_plane_state->ctx && dc_plane_state->ctx->dc)
+ color_caps = &dc_plane_state->ctx->dc->caps.color;
+
degamma_lut = __extract_blob_lut(dm_plane_state->degamma_lut,
°amma_size);
@@ -928,7 +934,7 @@ __set_dm_plane_degamma(struct drm_plane_state *plane_state,
dc_plane_state->in_transfer_func->type =
TF_TYPE_DISTRIBUTED_POINTS;
- ret = __set_input_tf(dc_plane_state->in_transfer_func,
+ ret = __set_input_tf(color_caps, dc_plane_state->in_transfer_func,
degamma_lut, degamma_size);
if (ret)
return ret;
@@ -945,7 +951,8 @@ __set_dm_plane_degamma(struct drm_plane_state *plane_state,
static int
amdgpu_dm_plane_set_color_properties(struct drm_plane_state *plane_state,
- struct dc_plane_state *dc_plane_state)
+ struct dc_plane_state *dc_plane_state,
+ struct dc_color_caps *color_caps)
{
struct dm_plane_state *dm_plane_state = to_dm_plane_state(plane_state);
enum drm_transfer_function shaper_tf = DRM_TRANSFER_FUNCTION_DEFAULT;
@@ -1013,9 +1020,13 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
struct drm_plane_state *plane_state,
struct dc_plane_state *dc_plane_state)
{
+ struct dc_color_caps *color_caps = NULL;
bool has_crtc_cm_degamma;
int ret;
+ if (dc_plane_state->ctx && dc_plane_state->ctx->dc)
+ color_caps = &dc_plane_state->ctx->dc->caps.color;
+
/* Initially, we can just bypass the DGM block. */
dc_plane_state->in_transfer_func->type = TF_TYPE_BYPASS;
dc_plane_state->in_transfer_func->tf = TRANSFER_FUNCTION_LINEAR;
@@ -1023,7 +1034,7 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
/* After, we start to update values according to color props */
has_crtc_cm_degamma = (crtc->cm_has_degamma || crtc->cm_is_degamma_srgb);
- ret = __set_dm_plane_degamma(plane_state, dc_plane_state);
+ ret = __set_dm_plane_degamma(plane_state, dc_plane_state, color_caps);
if (ret == -ENOMEM)
return ret;
@@ -1049,11 +1060,11 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
* linearize (implicit degamma) from sRGB/BT709 according to
* the input space.
*/
- ret = map_crtc_degamma_to_dc_plane(crtc, dc_plane_state);
+ ret = map_crtc_degamma_to_dc_plane(crtc, dc_plane_state, color_caps);
if (ret)
return ret;
}
return amdgpu_dm_plane_set_color_properties(plane_state,
- dc_plane_state);
+ dc_plane_state, color_caps);
}
--
2.39.2
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