From: Alex Hung <alex.hung@xxxxxxx>
This adds support for a multiplier. This multiplier is
programmed via the HDR Multiplier in DCN.
With this change the following IGT tests pass:
kms_colorop --run plane-XR30-XR30-multiply_125
kms_colorop --run plane-XR30-XR30-multiply_inv_125
The color pipeline now consists of the following colorops:
1. 1D curve colorop
2. 3x4 CTM
3. Multiplier
4. 1D curve colorop
5. 1D LUT
6. 1D curve colorop
7. 1D LUT
Signed-off-by: Alex Hung <alex.hung@xxxxxxx>
---
.../amd/display/amdgpu_dm/amdgpu_dm_color.c | 40 +++++++++++++++++++
.../amd/display/amdgpu_dm/amdgpu_dm_colorop.c | 15 +++++++
2 files changed, 55 insertions(+)
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 ea9bd287cddd..a14dc67dbbdf 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
@@ -1251,6 +1251,35 @@ __set_dm_plane_colorop_3x4_matrix(struct drm_plane_state *plane_state,
return 0;
}
+static int
+__set_dm_plane_colorop_multiplier(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;
+ const struct drm_device *dev = colorop->dev;
+ int i = 0;
+
+ /* Multiplier */
+ old_colorop = colorop;
+ for_each_new_colorop_in_state(state, colorop, new_colorop_state, i) {
+ if (new_colorop_state->colorop == old_colorop &&
+ new_colorop_state->colorop->type == DRM_COLOROP_MULTIPLIER) {
+ colorop_state = new_colorop_state;
+ break;
+ }
+ }
+
+ if (colorop_state && !colorop_state->bypass && colorop->type == DRM_COLOROP_MULTIPLIER) {
+ drm_dbg(dev, "Multiplier colorop with ID: %d\n", colorop->base.id);
+ dc_plane_state->hdr_mult = amdgpu_dm_fixpt_from_s3132(colorop_state->multiplier);
+ }
+
+ return 0;
+}
+
static int
__set_dm_plane_colorop_shaper(struct drm_plane_state *plane_state,
struct dc_plane_state *dc_plane_state,
@@ -1461,6 +1490,17 @@ amdgpu_dm_plane_set_colorop_properties(struct drm_plane_state *plane_state,
if (ret)
return ret;
+ /* Multiplier */
+ colorop = colorop->next;
+ if (!colorop) {
+ drm_dbg(dev, "no multiplier colorop found\n");
+ return -EINVAL;
+ }
+
+ ret = __set_dm_plane_colorop_multiplier(plane_state, dc_plane_state, colorop);
+ if (ret)
+ return ret;
+
/* 1D Curve & LUT - SHAPER TF & LUT */
colorop = colorop->next;
if (!colorop) {
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 ba42f1f6b620..b739d6cb3e6b 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
@@ -84,6 +84,21 @@ int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_pr
prev_op = op;
+ /* Multiplier */
+ op = kzalloc(sizeof(struct drm_colorop), GFP_KERNEL);
+ if (!op) {
+ DRM_ERROR("KMS: Failed to allocate colorop\n");
+ return -ENOMEM;
+ }
+
+ ret = drm_colorop_mult_init(dev, op, plane);
+ if (ret)
+ return ret;
+
+ drm_colorop_set_next_property(prev_op, op);
+
+ prev_op = op;
+
/* 1D curve - SHAPER TF */
op = kzalloc(sizeof(struct drm_colorop), GFP_KERNEL);
if (!op) {
--
2.46.0
