[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 15:55:55 UTC 2024
On 05/21, Melissa Wen wrote:
> 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;;
Nitpick: double `;`
> > + }
> > +}
> > +
> > 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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