diff mbox series

[v5,28/44] drm/amd/display: Add support for sRGB Inverse EOTF in SHAPER block

Message ID 20240819205714.316380-29-harry.wentland@amd.com (mailing list archive)
State New, archived
Headers show
Series Color Pipeline API w/ VKMS | expand

Commit Message

Harry Wentland Aug. 19, 2024, 8:56 p.m. UTC
From: Alex Hung <alex.hung@amd.com>

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@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Co-developed-by: Harry Wentland <harry.wentland@amd.com>
---
 .../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(-)

Comments

kernel test robot Aug. 21, 2024, 4:52 a.m. UTC | #1
Hi Harry,

kernel test robot noticed the following build warnings:

[auto build test WARNING on drm/drm-next]
[also build test WARNING on drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-misc/drm-misc-next drm-tip/drm-tip linus/master v6.11-rc4 next-20240820]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Harry-Wentland/drm-Add-helper-for-conversion-from-signed-magnitude/20240820-050138
base:   git://anongit.freedesktop.org/drm/drm drm-next
patch link:    https://lore.kernel.org/r/20240819205714.316380-29-harry.wentland%40amd.com
patch subject: [PATCH v5 28/44] drm/amd/display: Add support for sRGB Inverse EOTF in SHAPER block
config: x86_64-randconfig-003-20240821 (https://download.01.org/0day-ci/archive/20240821/202408211241.xAvubshv-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240821/202408211241.xAvubshv-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408211241.xAvubshv-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c:1232:42: warning: variable 'shaper_size' is uninitialized when used here [-Wuninitialized]
    1232 |                 return __set_output_tf(tf, shaper_lut, shaper_size, false);
         |                                                        ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c:1214:22: note: initialize the variable 'shaper_size' to silence this warning
    1214 |         uint32_t shaper_size;
         |                             ^
         |                              = 0
   1 warning generated.


vim +/shaper_size +1232 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c

  1205	
  1206	static int
  1207	__set_colorop_in_shaper_1d_curve(struct dc_plane_state *dc_plane_state,
  1208			       struct drm_colorop_state *colorop_state)
  1209	{
  1210		struct dc_transfer_func *tf = &dc_plane_state->in_shaper_func;
  1211		struct drm_colorop *colorop = colorop_state->colorop;
  1212		struct drm_device *drm = colorop->dev;
  1213		const struct drm_color_lut *shaper_lut;
  1214		uint32_t shaper_size;
  1215	
  1216		if (colorop->type != DRM_COLOROP_1D_CURVE &&
  1217		    colorop_state->curve_1d_type != DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF)
  1218			return -EINVAL;
  1219	
  1220		if (colorop_state->bypass) {
  1221			tf->type = TF_TYPE_BYPASS;
  1222			tf->tf = TRANSFER_FUNCTION_LINEAR;
  1223			return 0;
  1224		}
  1225	
  1226		drm_dbg(drm, "Shaper colorop with ID: %d\n", colorop->base.id);
  1227	
  1228		if (colorop->type == DRM_COLOROP_1D_CURVE) {
  1229			tf->type = TF_TYPE_DISTRIBUTED_POINTS;
  1230			tf->tf = amdgpu_colorop_tf_to_dc_tf(colorop_state->curve_1d_type);
  1231			tf->sdr_ref_white_level = SDR_WHITE_LEVEL_INIT_VALUE;
> 1232			return __set_output_tf(tf, shaper_lut, shaper_size, false);
  1233		}
  1234	
  1235		return -EINVAL;
  1236	}
  1237
diff mbox series

Patch

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);