[V7 30/45] drm/amd/display: Enable support for PQ 125 EOTF and Inverse

[Alex Hung]

From: Harry Wentland <harry.wentland at amd.com>

This patchset enables support for the PQ_125 EOTF and its inverse
on all existing plane 1D curve colorops, i.e., on DEGAM, SHAPER,
and BLND blocks.

With this patchset the following IGT subtests are passing:
kms_colorop --run plane-XR30-XR30-pq_125_eotf
kms_colorop --run plane-XR30-XR30-pq_125_inv_eotf
kms_colorop --run plane-XR30-XR30-pq_125_eotf-pq_125_inv_eotf
kms_colorop --run plane-XR30-XR30-pq_125_eotf-pq_125_inv_eotf-pq_125_eotf

Signed-off-by: Alex Hung <alex.hung at amd.com>
Signed-off-by: Harry Wentland <harry.wentland at amd.com>
---
 .../amd/display/amdgpu_dm/amdgpu_dm_color.c   | 20 +++++++++++++------
 .../amd/display/amdgpu_dm/amdgpu_dm_colorop.c |  6 ++++--
 2 files changed, 18 insertions(+), 8 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 ddc8318f6201..63044e0296cb 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
@@ -25,6 +25,7 @@
 #include "amdgpu.h"
 #include "amdgpu_mode.h"
 #include "amdgpu_dm.h"
+#include "amdgpu_dm_colorop.h"
 #include "dc.h"
 #include "modules/color/color_gamma.h"
 #include "basics/conversion.h"
@@ -675,6 +676,9 @@ amdgpu_colorop_tf_to_dc_tf(enum drm_colorop_curve_1d_type tf)
 	case DRM_COLOROP_1D_CURVE_SRGB_EOTF:
 	case DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF:
 		return TRANSFER_FUNCTION_SRGB;
+	case DRM_COLOROP_1D_CURVE_PQ_125_EOTF:
+	case DRM_COLOROP_1D_CURVE_PQ_125_INV_EOTF:
+		return TRANSFER_FUNCTION_PQ;
 	default:
 		return TRANSFER_FUNCTION_LINEAR;
 	}
@@ -1157,8 +1161,10 @@ __set_colorop_in_tf_1d_curve(struct dc_plane_state *dc_plane_state,
 	struct drm_colorop *colorop = colorop_state->colorop;
 	struct drm_device *drm = colorop->dev;
 
-	if (colorop->type != DRM_COLOROP_1D_CURVE &&
-	    colorop_state->curve_1d_type != DRM_COLOROP_1D_CURVE_SRGB_EOTF)
+	if (colorop->type != DRM_COLOROP_1D_CURVE)
+		return -EINVAL;
+
+	if (!(BIT(colorop_state->curve_1d_type) & amdgpu_dm_supported_degam_tfs))
 		return -EINVAL;
 
 	if (colorop_state->bypass) {
@@ -1190,7 +1196,7 @@ __set_dm_plane_colorop_degamma(struct drm_plane_state *plane_state,
 	/* 1st op: 1d curve - degamma */
 	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_EOTF) {
+		    (BIT(new_colorop_state->curve_1d_type) & amdgpu_dm_supported_degam_tfs)) {
 			colorop_state = new_colorop_state;
 			break;
 		}
@@ -1210,8 +1216,10 @@ __set_colorop_in_shaper_1d_curve(struct dc_plane_state *dc_plane_state,
 	struct drm_colorop *colorop = colorop_state->colorop;
 	struct drm_device *drm = colorop->dev;
 
-	if (colorop->type != DRM_COLOROP_1D_CURVE &&
-	    colorop_state->curve_1d_type != DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF)
+	if (colorop->type != DRM_COLOROP_1D_CURVE)
+		return -EINVAL;
+
+	if (!(BIT(colorop_state->curve_1d_type) & amdgpu_dm_supported_shaper_tfs))
 		return -EINVAL;
 
 	if (colorop_state->bypass) {
@@ -1247,7 +1255,7 @@ __set_dm_plane_colorop_shaper(struct drm_plane_state *plane_state,
 	/* 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) {
+		    (BIT(new_colorop_state->curve_1d_type) & amdgpu_dm_supported_shaper_tfs)) {
 			colorop_state = new_colorop_state;
 			break;
 		}
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 c5154e1430f5..a9d94018a207 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
@@ -32,10 +32,12 @@
 #include "amdgpu_dm_colorop.h"
 
 const u64 amdgpu_dm_supported_degam_tfs =
-	BIT(DRM_COLOROP_1D_CURVE_SRGB_EOTF);
+	BIT(DRM_COLOROP_1D_CURVE_SRGB_EOTF) |
+	BIT(DRM_COLOROP_1D_CURVE_PQ_125_EOTF);
 
 const u64 amdgpu_dm_supported_shaper_tfs =
-	BIT(DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF);
+	BIT(DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF) |
+	BIT(DRM_COLOROP_1D_CURVE_PQ_125_INV_EOTF);
 
 const u64 amdgpu_dm_supported_blnd_tfs =
 	BIT(DRM_COLOROP_1D_CURVE_SRGB_EOTF);
-- 
2.43.0