From: Alex Hung <alex.hung@xxxxxxx>
Expose a 2nd curve colorop with support for
DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF and program HW to
perform the sRGB Inverse EOTF on the shaper block
when the colorop is not in bypass.
With this change the follow IGT tests pass:
kms_colorop --run plane-XR30-XR30-srgb_inv_eotf
kms_colorop --run plane-XR30-XR30-srgb_eotf-srgb_inv_eotf
The color pipeline now consists of the following colorops:
1. 1D curve colorop w/ sRGB EOTF support
2. 1D curve colorop w/ sRGB Inverse EOTF support
Signed-off-by: Alex Hung <alex.hung@xxxxxxx>
Signed-off-by: Harry Wentland <harry.wentland@xxxxxxx>
Co-developed-by: Harry Wentland <harry.wentland@xxxxxxx>
---
.../amd/display/amdgpu_dm/amdgpu_dm_color.c | 76 +++++++++++++++++++
.../amd/display/amdgpu_dm/amdgpu_dm_colorop.c | 20 ++++-
.../amd/display/amdgpu_dm/amdgpu_dm_colorop.h | 1 +
3 files changed, 96 insertions(+), 1 deletion(-)
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 adb1e4b3522d..58a996090509 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
@@ -1203,6 +1203,70 @@ __set_dm_plane_colorop_degamma(struct drm_plane_state *plane_state,
return __set_colorop_in_tf_1d_curve(dc_plane_state, colorop_state);
}
+static int
+__set_colorop_in_shaper_1d_curve(struct dc_plane_state *dc_plane_state,
+ struct drm_colorop_state *colorop_state)
+{
+ struct dc_transfer_func *tf = &dc_plane_state->in_shaper_func;
+ struct drm_colorop *colorop = colorop_state->colorop;
+ struct drm_device *drm = colorop->dev;
+ const struct drm_color_lut *shaper_lut;
+ uint32_t shaper_size;
+
+ if (colorop->type != DRM_COLOROP_1D_CURVE &&
+ colorop_state->curve_1d_type != DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF)
+ return -EINVAL;
+
+ if (colorop_state->bypass) {
+ tf->type = TF_TYPE_BYPASS;
+ tf->tf = TRANSFER_FUNCTION_LINEAR;
+ return 0;
+ }
+
+ drm_dbg(drm, "Shaper colorop with ID: %d\n", colorop->base.id);
+
+ if (colorop->type == DRM_COLOROP_1D_CURVE) {
+ tf->type = TF_TYPE_DISTRIBUTED_POINTS;
+ tf->tf = amdgpu_colorop_tf_to_dc_tf(colorop_state->curve_1d_type);
+ tf->sdr_ref_white_level = SDR_WHITE_LEVEL_INIT_VALUE;
+ return __set_output_tf(tf, shaper_lut, shaper_size, false);
+ }
+
+ return -EINVAL;
+}
+
+static int
+__set_dm_plane_colorop_shaper(struct drm_plane_state *plane_state,
+ struct dc_plane_state *dc_plane_state,
+ struct drm_colorop *colorop)
+{
+ struct drm_colorop *old_colorop;
+ struct drm_colorop_state *colorop_state = NULL, *new_colorop_state;
+ struct drm_atomic_state *state = plane_state->state;
+ int i = 0;
+
+ old_colorop = colorop;
+
+ /* 2nd op: 1d curve - shaper */
+ for_each_new_colorop_in_state(state, colorop, new_colorop_state, i) {
+ if (new_colorop_state->colorop == old_colorop &&
+ new_colorop_state->curve_1d_type == DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF) {
+ colorop_state = new_colorop_state;
+ break;
+ }
+
+ if (new_colorop_state->colorop == old_colorop) {
+ colorop_state = new_colorop_state;
+ break;
+ }
+ }
+
+ if (!colorop_state)
+ return -EINVAL;
+
+ return __set_colorop_in_shaper_1d_curve(dc_plane_state, colorop_state);
+}
+
static int
amdgpu_dm_plane_set_color_properties(struct drm_plane_state *plane_state,
struct dc_plane_state *dc_plane_state)
@@ -1258,6 +1322,7 @@ amdgpu_dm_plane_set_colorop_properties(struct drm_plane_state *plane_state,
struct dc_plane_state *dc_plane_state)
{
struct drm_colorop *colorop = plane_state->color_pipeline;
+ struct drm_device *dev = plane_state->plane->dev;
int ret;
/* 1D Curve - DEGAM TF */
@@ -1269,6 +1334,17 @@ amdgpu_dm_plane_set_colorop_properties(struct drm_plane_state *plane_state,
if (ret)
return ret;
+ /* 1D Curve - SHAPER TF */
+ colorop = colorop->next;
+ if (!colorop) {
+ drm_dbg(dev, "no Shaper TF colorop found\n");
+ return -EINVAL;
+ }
+
+ ret = __set_dm_plane_colorop_shaper(plane_state, dc_plane_state, colorop);
+ if (ret)
+ return ret;
+
return 0;
}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c
index e8b7fc8bb0f1..0d1626abf577 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c
@@ -34,9 +34,12 @@
const u64 amdgpu_dm_supported_degam_tfs =
BIT(DRM_COLOROP_1D_CURVE_SRGB_EOTF);
+ const u64 amdgpu_dm_supported_shaper_tfs =
+ BIT(DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF);
+
int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_prop_enum_list *list)
{
- struct drm_colorop *op;
+ struct drm_colorop *op, *prev_op;
struct drm_device *dev = plane->dev;
int ret;
@@ -54,5 +57,20 @@ int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_pr
list->type = op->base.id;
list->name = kasprintf(GFP_KERNEL, "Color Pipeline %d", op->base.id);
+ prev_op = op;
+
+ /* 1D curve - SHAPER TF */
+ op = kzalloc(sizeof(struct drm_colorop), GFP_KERNEL);
+ if (!op) {
+ DRM_ERROR("KMS: Failed to allocate colorop\n");
+ return -ENOMEM;
+ }
+
+ ret = drm_colorop_curve_1d_init(dev, op, plane, amdgpu_dm_supported_shaper_tfs);
+ if (ret)
+ return ret;
+
+ drm_colorop_set_next_property(prev_op, op);
+
return 0;
}
\ No newline at end of file
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.h
index f16de6a9fbde..c4b1b187e9bf 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.h
@@ -28,6 +28,7 @@
#define __AMDGPU_DM_COLOROP_H__
extern const u64 amdgpu_dm_supported_degam_tfs;
+extern const u64 amdgpu_dm_supported_shaper_tfs;
int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_prop_enum_list *list);
--
2.46.0
