1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/*
* 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),
plane->state->src_x >> 16,
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);
}
|
