linux/drivers/gpu/drm/virtio/virtgpu_plane.c

/*
 * Copyright (C) 2015 Red Hat, Inc.
 * All Rights Reserved.
 *
 * 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 (including the
 * next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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.
 */

#include <drm/drm_atomic_helper.h>
#include <drm/drm_damage_helper.h>
#include <drm/drm_fourcc.h>

#include "virtgpu_drv.h"

static const uint32_t virtio_gpu_formats[] = …;

static const uint32_t virtio_gpu_cursor_formats[] = …;

uint32_t virtio_gpu_translate_format(uint32_t drm_fourcc)
{ … }

static const struct drm_plane_funcs virtio_gpu_plane_funcs = …;

static int virtio_gpu_plane_atomic_check(struct drm_plane *plane,
					 struct drm_atomic_state *state)
{ … }

static void virtio_gpu_update_dumb_bo(struct virtio_gpu_device *vgdev,
				      struct drm_plane_state *state,
				      struct drm_rect *rect)
{ … }

static void virtio_gpu_resource_flush(struct drm_plane *plane,
				      uint32_t x, uint32_t y,
				      uint32_t width, uint32_t height)
{ … }

static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
					    struct drm_atomic_state *state)
{ … }

static int virtio_gpu_plane_prepare_fb(struct drm_plane *plane,
				       struct drm_plane_state *new_state)
{ … }

static void virtio_gpu_plane_cleanup_fb(struct drm_plane *plane,
					struct drm_plane_state *state)
{ … }

static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
					   struct drm_atomic_state *state)
{ … }

static const struct drm_plane_helper_funcs virtio_gpu_primary_helper_funcs = …;

static const struct drm_plane_helper_funcs virtio_gpu_cursor_helper_funcs = …;

struct drm_plane *virtio_gpu_plane_init(struct virtio_gpu_device *vgdev,
					enum drm_plane_type type,
					int index)
{ … }