[RFC PATCH v4 31/42] drm/amd/display: Add support for sRGB EOTF in DEGAM block
Melissa Wen
mwen at igalia.com
Tue May 21 15:45:20 UTC 2024
On 02/26, Harry Wentland wrote:
> From: Alex Hung <alex.hung at amd.com>
>
> Expose one 1D curve colorop with support for
> DRM_COLOROP_1D_CURVE_SRGB_EOTF and program HW to perform
> the sRGB transform when the colorop is not in bypass.
>
> With this change the following IGT test passes:
> kms_colorop --run plane-XR30-XR30-srgb_eotf
>
> The color pipeline now consists of a single colorop:
> 1. 1D curve colorop w/ sRGB EOTF
>
> Signed-off-by: Alex Hung <alex.hung at amd.com>
> Signed-off-by: Harry Wentland <harry.wentland at amd.com>
> Co-developed-by: Harry Wentland <harry.wentland at amd.com>
> ---
> .../gpu/drm/amd/display/amdgpu_dm/Makefile | 3 +-
> .../amd/display/amdgpu_dm/amdgpu_dm_color.c | 88 +++++++++++++++++++
> .../amd/display/amdgpu_dm/amdgpu_dm_colorop.c | 58 ++++++++++++
> .../amd/display/amdgpu_dm/amdgpu_dm_colorop.h | 34 +++++++
> .../amd/display/amdgpu_dm/amdgpu_dm_plane.c | 10 +++
> 5 files changed, 192 insertions(+), 1 deletion(-)
> create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c
> create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.h
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile b/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
> index ab2a97e354da..46158d67ab12 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
> @@ -38,7 +38,8 @@ AMDGPUDM = \
> amdgpu_dm_pp_smu.o \
> amdgpu_dm_psr.o \
> amdgpu_dm_replay.o \
> - amdgpu_dm_wb.o
> + amdgpu_dm_wb.o \
> + amdgpu_dm_colorop.o
>
> ifdef CONFIG_DRM_AMD_DC_FP
> AMDGPUDM += dc_fpu.o
> 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 9b527bffe11a..3ec759934669 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
> @@ -668,6 +668,19 @@ amdgpu_tf_to_dc_tf(enum amdgpu_transfer_function tf)
> }
> }
>
> +static enum dc_transfer_func_predefined
> +amdgpu_colorop_tf_to_dc_tf(enum drm_colorop_curve_1d_type tf)
> +{
> + switch (tf)
> + {
> + case DRM_COLOROP_1D_CURVE_SRGB_EOTF:
> + case DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF:
> + return TRANSFER_FUNCTION_SRGB;
> + default:
> + return TRANSFER_FUNCTION_LINEAR;;
> + }
> +}
> +
> static void __to_dc_lut3d_color(struct dc_rgb *rgb,
> const struct drm_color_lut lut,
> int bit_precision)
> @@ -1137,6 +1150,59 @@ __set_dm_plane_degamma(struct drm_plane_state *plane_state,
> return 0;
> }
>
> +static int
> +__set_colorop_in_tf_1d_curve(struct dc_plane_state *dc_plane_state,
> + struct drm_colorop_state *colorop_state)
> +{
> + struct dc_transfer_func *tf = dc_plane_state->in_transfer_func;
For this patch and the next two, it ^ should be:
`&dc_plane_state->in_transfer_func` (same for shape and blend), right?
> + 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)
> + return -EINVAL;
> +
> + if (colorop_state->bypass) {
> + tf->type = TF_TYPE_BYPASS;
> + tf->tf = TRANSFER_FUNCTION_LINEAR;
> + return 0;
> + }
> +
> + drm_dbg(drm, "Degamma colorop with ID: %d\n", colorop->base.id);
> +
> + tf->type = TF_TYPE_PREDEFINED;
> + tf->tf = amdgpu_colorop_tf_to_dc_tf(colorop_state->curve_1d_type);
> +
> + return 0;
> +}
> +
> +static int
> +__set_dm_plane_colorop_degamma(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;
> +
> + /* 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) {
> + colorop_state = new_colorop_state;
> + break;
> + }
> + }
> +
> + if (!colorop_state)
> + return -EINVAL;
> +
> + return __set_colorop_in_tf_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)
> @@ -1187,6 +1253,25 @@ amdgpu_dm_plane_set_color_properties(struct drm_plane_state *plane_state,
> return 0;
> }
>
> +static int
> +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;
> + int ret;
> +
> + /* 1D Curve - DEGAM TF */
> + if (!colorop) {
> + return -EINVAL;
> + }
> +
> + ret = __set_dm_plane_colorop_degamma(plane_state, dc_plane_state, colorop);
> + if (ret)
> + return ret;
> +
> + return 0;
> +}
> +
> /**
> * amdgpu_dm_update_plane_color_mgmt: Maps DRM color management to DC plane.
> * @crtc: amdgpu_dm crtc state
> @@ -1283,5 +1368,8 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
> dc_plane_state->input_csc_color_matrix.enable_adjustment = false;
> }
>
> + if (!amdgpu_dm_plane_set_colorop_properties(plane_state, dc_plane_state))
> + return 0;
> +
> return amdgpu_dm_plane_set_color_properties(plane_state, dc_plane_state);
> }
> 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
> new file mode 100644
> index 000000000000..e8b7fc8bb0f1
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c
> @@ -0,0 +1,58 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright 2023 Advanced Micro Devices, Inc.
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Authors: AMD
> + *
> + */
> +
> +#include <drm/drm_print.h>
> +#include <drm/drm_plane.h>
> +#include <drm/drm_property.h>
> +#include <drm/drm_colorop.h>
> +
> +#include "amdgpu_dm_colorop.h"
> +
> +const u64 amdgpu_dm_supported_degam_tfs =
> + BIT(DRM_COLOROP_1D_CURVE_SRGB_EOTF);
> +
> +int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_prop_enum_list *list)
> +{
> + struct drm_colorop *op;
> + struct drm_device *dev = plane->dev;
> + int ret;
> +
> + /* 1D curve - DEGAM 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_degam_tfs);
> + if (ret)
> + return ret;
> +
> + list->type = op->base.id;
> + list->name = kasprintf(GFP_KERNEL, "Color Pipeline %d", op->base.id);
> +
> + 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
> new file mode 100644
> index 000000000000..f16de6a9fbde
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.h
> @@ -0,0 +1,34 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright 2023 Advanced Micro Devices, Inc.
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Authors: AMD
> + *
> + */
> +
> +#ifndef __AMDGPU_DM_COLOROP_H__
> +#define __AMDGPU_DM_COLOROP_H__
> +
> +extern const u64 amdgpu_dm_supported_degam_tfs;
> +
> +int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_prop_enum_list *list);
> +
> +#endif /* __AMDGPU_DM_COLOROP_H__*/
> \ No newline at end of file
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> index d3f64f586243..3adab18332d8 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> @@ -35,6 +35,7 @@
> #include "amdgpu_display.h"
> #include "amdgpu_dm_trace.h"
> #include "amdgpu_dm_plane.h"
> +#include "amdgpu_dm_colorop.h"
> #include "gc/gc_11_0_0_offset.h"
> #include "gc/gc_11_0_0_sh_mask.h"
>
> @@ -1658,10 +1659,19 @@ dm_plane_init_colorops(struct drm_plane *plane)
> {
> struct drm_prop_enum_list pipelines[MAX_COLOR_PIPELINES];
> int len = 0;
> + int ret;
>
> if (plane->type == DRM_PLANE_TYPE_CURSOR)
> return 0;
>
> + /* initialize default pipeline */
> + ret = amdgpu_dm_initialize_default_pipeline(plane, &(pipelines[len]));
> + if (ret) {
> + DRM_ERROR("Failed to create color pipeline for plane %d: %d\n", plane->base.id, ret);
> + return ret;
> + }
> + len++;
> +
> /* Create COLOR_PIPELINE property and attach */
> drm_plane_create_color_pipeline_property(plane, pipelines, len);
>
> --
> 2.44.0
>
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