mirror of https://gitee.com/openkylin/linux.git
239 lines
7.3 KiB
C
239 lines
7.3 KiB
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 "virtgpu_drv.h"
|
|
#include <drm/drm_plane_helper.h>
|
|
#include <drm/drm_atomic_helper.h>
|
|
|
|
static const uint32_t virtio_gpu_formats[] = {
|
|
DRM_FORMAT_XRGB8888,
|
|
DRM_FORMAT_ARGB8888,
|
|
DRM_FORMAT_BGRX8888,
|
|
DRM_FORMAT_BGRA8888,
|
|
DRM_FORMAT_RGBX8888,
|
|
DRM_FORMAT_RGBA8888,
|
|
DRM_FORMAT_XBGR8888,
|
|
DRM_FORMAT_ABGR8888,
|
|
};
|
|
|
|
static const uint32_t virtio_gpu_cursor_formats[] = {
|
|
DRM_FORMAT_ARGB8888,
|
|
};
|
|
|
|
static void virtio_gpu_plane_destroy(struct drm_plane *plane)
|
|
{
|
|
kfree(plane);
|
|
}
|
|
|
|
static const struct drm_plane_funcs virtio_gpu_plane_funcs = {
|
|
.update_plane = drm_atomic_helper_update_plane,
|
|
.disable_plane = drm_atomic_helper_disable_plane,
|
|
.destroy = virtio_gpu_plane_destroy,
|
|
.reset = drm_atomic_helper_plane_reset,
|
|
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
|
|
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
|
|
};
|
|
|
|
static int virtio_gpu_plane_atomic_check(struct drm_plane *plane,
|
|
struct drm_plane_state *state)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
|
|
struct drm_plane_state *old_state)
|
|
{
|
|
struct drm_device *dev = plane->dev;
|
|
struct virtio_gpu_device *vgdev = dev->dev_private;
|
|
struct virtio_gpu_output *output = NULL;
|
|
struct virtio_gpu_framebuffer *vgfb;
|
|
struct virtio_gpu_object *bo;
|
|
uint32_t handle;
|
|
|
|
if (plane->state->crtc)
|
|
output = drm_crtc_to_virtio_gpu_output(plane->state->crtc);
|
|
if (old_state->crtc)
|
|
output = drm_crtc_to_virtio_gpu_output(old_state->crtc);
|
|
if (WARN_ON(!output))
|
|
return;
|
|
|
|
if (plane->state->fb) {
|
|
vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
|
|
bo = gem_to_virtio_gpu_obj(vgfb->obj);
|
|
handle = bo->hw_res_handle;
|
|
if (bo->dumb) {
|
|
virtio_gpu_cmd_transfer_to_host_2d
|
|
(vgdev, handle, 0,
|
|
cpu_to_le32(plane->state->src_w >> 16),
|
|
cpu_to_le32(plane->state->src_h >> 16),
|
|
cpu_to_le32(plane->state->src_x >> 16),
|
|
cpu_to_le32(plane->state->src_y >> 16), NULL);
|
|
}
|
|
} else {
|
|
handle = 0;
|
|
}
|
|
|
|
DRM_DEBUG("handle 0x%x, crtc %dx%d+%d+%d, src %dx%d+%d+%d\n", handle,
|
|
plane->state->crtc_w, plane->state->crtc_h,
|
|
plane->state->crtc_x, plane->state->crtc_y,
|
|
plane->state->src_w >> 16,
|
|
plane->state->src_h >> 16,
|
|
plane->state->src_x >> 16,
|
|
plane->state->src_y >> 16);
|
|
virtio_gpu_cmd_set_scanout(vgdev, output->index, handle,
|
|
plane->state->src_w >> 16,
|
|
plane->state->src_h >> 16,
|
|
plane->state->src_x >> 16,
|
|
plane->state->src_y >> 16);
|
|
virtio_gpu_cmd_resource_flush(vgdev, handle,
|
|
plane->state->src_x >> 16,
|
|
plane->state->src_y >> 16,
|
|
plane->state->src_w >> 16,
|
|
plane->state->src_h >> 16);
|
|
}
|
|
|
|
static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
|
|
struct drm_plane_state *old_state)
|
|
{
|
|
struct drm_device *dev = plane->dev;
|
|
struct virtio_gpu_device *vgdev = dev->dev_private;
|
|
struct virtio_gpu_output *output = NULL;
|
|
struct virtio_gpu_framebuffer *vgfb;
|
|
struct virtio_gpu_fence *fence = NULL;
|
|
struct virtio_gpu_object *bo = NULL;
|
|
uint32_t handle;
|
|
int ret = 0;
|
|
|
|
if (plane->state->crtc)
|
|
output = drm_crtc_to_virtio_gpu_output(plane->state->crtc);
|
|
if (old_state->crtc)
|
|
output = drm_crtc_to_virtio_gpu_output(old_state->crtc);
|
|
if (WARN_ON(!output))
|
|
return;
|
|
|
|
if (plane->state->fb) {
|
|
vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
|
|
bo = gem_to_virtio_gpu_obj(vgfb->obj);
|
|
handle = bo->hw_res_handle;
|
|
} else {
|
|
handle = 0;
|
|
}
|
|
|
|
if (bo && bo->dumb && (plane->state->fb != old_state->fb)) {
|
|
/* new cursor -- update & wait */
|
|
virtio_gpu_cmd_transfer_to_host_2d
|
|
(vgdev, handle, 0,
|
|
cpu_to_le32(plane->state->crtc_w),
|
|
cpu_to_le32(plane->state->crtc_h),
|
|
0, 0, &fence);
|
|
ret = virtio_gpu_object_reserve(bo, false);
|
|
if (!ret) {
|
|
reservation_object_add_excl_fence(bo->tbo.resv,
|
|
&fence->f);
|
|
dma_fence_put(&fence->f);
|
|
fence = NULL;
|
|
virtio_gpu_object_unreserve(bo);
|
|
virtio_gpu_object_wait(bo, false);
|
|
}
|
|
}
|
|
|
|
if (plane->state->fb != old_state->fb) {
|
|
DRM_DEBUG("update, handle %d, pos +%d+%d, hot %d,%d\n", handle,
|
|
plane->state->crtc_x,
|
|
plane->state->crtc_y,
|
|
plane->state->fb ? plane->state->fb->hot_x : 0,
|
|
plane->state->fb ? plane->state->fb->hot_y : 0);
|
|
output->cursor.hdr.type =
|
|
cpu_to_le32(VIRTIO_GPU_CMD_UPDATE_CURSOR);
|
|
output->cursor.resource_id = cpu_to_le32(handle);
|
|
if (plane->state->fb) {
|
|
output->cursor.hot_x =
|
|
cpu_to_le32(plane->state->fb->hot_x);
|
|
output->cursor.hot_y =
|
|
cpu_to_le32(plane->state->fb->hot_y);
|
|
} else {
|
|
output->cursor.hot_x = cpu_to_le32(0);
|
|
output->cursor.hot_y = cpu_to_le32(0);
|
|
}
|
|
} else {
|
|
DRM_DEBUG("move +%d+%d\n",
|
|
plane->state->crtc_x,
|
|
plane->state->crtc_y);
|
|
output->cursor.hdr.type =
|
|
cpu_to_le32(VIRTIO_GPU_CMD_MOVE_CURSOR);
|
|
}
|
|
output->cursor.pos.x = cpu_to_le32(plane->state->crtc_x);
|
|
output->cursor.pos.y = cpu_to_le32(plane->state->crtc_y);
|
|
virtio_gpu_cursor_ping(vgdev, output);
|
|
}
|
|
|
|
static const struct drm_plane_helper_funcs virtio_gpu_primary_helper_funcs = {
|
|
.atomic_check = virtio_gpu_plane_atomic_check,
|
|
.atomic_update = virtio_gpu_primary_plane_update,
|
|
};
|
|
|
|
static const struct drm_plane_helper_funcs virtio_gpu_cursor_helper_funcs = {
|
|
.atomic_check = virtio_gpu_plane_atomic_check,
|
|
.atomic_update = virtio_gpu_cursor_plane_update,
|
|
};
|
|
|
|
struct drm_plane *virtio_gpu_plane_init(struct virtio_gpu_device *vgdev,
|
|
enum drm_plane_type type,
|
|
int index)
|
|
{
|
|
struct drm_device *dev = vgdev->ddev;
|
|
const struct drm_plane_helper_funcs *funcs;
|
|
struct drm_plane *plane;
|
|
const uint32_t *formats;
|
|
int ret, nformats;
|
|
|
|
plane = kzalloc(sizeof(*plane), GFP_KERNEL);
|
|
if (!plane)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
if (type == DRM_PLANE_TYPE_CURSOR) {
|
|
formats = virtio_gpu_cursor_formats;
|
|
nformats = ARRAY_SIZE(virtio_gpu_cursor_formats);
|
|
funcs = &virtio_gpu_cursor_helper_funcs;
|
|
} else {
|
|
formats = virtio_gpu_formats;
|
|
nformats = ARRAY_SIZE(virtio_gpu_formats);
|
|
funcs = &virtio_gpu_primary_helper_funcs;
|
|
}
|
|
ret = drm_universal_plane_init(dev, plane, 1 << index,
|
|
&virtio_gpu_plane_funcs,
|
|
formats, nformats,
|
|
type, NULL);
|
|
if (ret)
|
|
goto err_plane_init;
|
|
|
|
drm_plane_helper_add(plane, funcs);
|
|
return plane;
|
|
|
|
err_plane_init:
|
|
kfree(plane);
|
|
return ERR_PTR(ret);
|
|
}
|