linux/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c

/*
 * Copyright 2015 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_crtc.h>
#include <drm/drm_vblank.h>

#include "amdgpu.h"
#include "amdgpu_dm.h"
#include "dc.h"
#include "amdgpu_securedisplay.h"

static const char *const pipe_crc_sources[] = …;

static enum amdgpu_dm_pipe_crc_source dm_parse_crc_source(const char *source)
{ … }

static bool dm_is_crc_source_crtc(enum amdgpu_dm_pipe_crc_source src)
{ … }

static bool dm_is_crc_source_dprx(enum amdgpu_dm_pipe_crc_source src)
{ … }

static bool dm_need_crc_dither(enum amdgpu_dm_pipe_crc_source src)
{ … }

const char *const *amdgpu_dm_crtc_get_crc_sources(struct drm_crtc *crtc,
						  size_t *count)
{ … }

#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
static void amdgpu_dm_set_crc_window_default(struct drm_crtc *crtc, struct dc_stream_state *stream)
{ … }

static void amdgpu_dm_crtc_notify_ta_to_read(struct work_struct *work)
{ … }

static void
amdgpu_dm_forward_crc_window(struct work_struct *work)
{ … }

bool amdgpu_dm_crc_window_is_activated(struct drm_crtc *crtc)
{ … }
#endif

int
amdgpu_dm_crtc_verify_crc_source(struct drm_crtc *crtc, const char *src_name,
				 size_t *values_cnt)
{ … }

int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc,
					struct dm_crtc_state *dm_crtc_state,
					enum amdgpu_dm_pipe_crc_source source)
{ … }

int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name)
{ … }

/**
 * amdgpu_dm_crtc_handle_crc_irq: Report to DRM the CRC on given CRTC.
 * @crtc: DRM CRTC object.
 *
 * This function should be called at the end of a vblank, when the fb has been
 * fully processed through the pipe.
 */
void amdgpu_dm_crtc_handle_crc_irq(struct drm_crtc *crtc)
{ … }

#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
void amdgpu_dm_crtc_handle_crc_window_irq(struct drm_crtc *crtc)
{ … }

struct secure_display_context *
amdgpu_dm_crtc_secure_display_create_contexts(struct amdgpu_device *adev)
{ … }
#endif