4 * Copyright Red Hat, Inc. 2013-2014
7 * Dave Airlie <airlied@redhat.com>
8 * Gerd Hoffmann <kraxel@redhat.com>
10 * This work is licensed under the terms of the GNU GPL, version 2.
11 * See the COPYING file in the top-level directory.
14 #ifndef HW_VIRTIO_GPU_H
15 #define HW_VIRTIO_GPU_H
17 #include "qemu/queue.h"
18 #include "ui/qemu-pixman.h"
19 #include "ui/console.h"
20 #include "hw/virtio/virtio.h"
22 #include "sysemu/vhost-user-backend.h"
24 #include "standard-headers/linux/virtio_gpu.h"
25 #include "standard-headers/linux/virtio_ids.h"
26 #include "qom/object.h"
28 #define TYPE_VIRTIO_GPU_BASE "virtio-gpu-base"
29 OBJECT_DECLARE_TYPE(VirtIOGPUBase
, VirtIOGPUBaseClass
,
32 #define TYPE_VIRTIO_GPU "virtio-gpu-device"
33 OBJECT_DECLARE_TYPE(VirtIOGPU
, VirtIOGPUClass
, VIRTIO_GPU
)
35 #define TYPE_VIRTIO_GPU_GL "virtio-gpu-gl-device"
36 OBJECT_DECLARE_SIMPLE_TYPE(VirtIOGPUGL
, VIRTIO_GPU_GL
)
38 #define TYPE_VHOST_USER_GPU "vhost-user-gpu"
39 OBJECT_DECLARE_SIMPLE_TYPE(VhostUserGPU
, VHOST_USER_GPU
)
41 struct virtio_gpu_simple_resource
{
49 uint32_t scanout_bitmask
;
50 pixman_image_t
*image
;
61 QTAILQ_ENTRY(virtio_gpu_simple_resource
) next
;
64 struct virtio_gpu_framebuffer
{
65 pixman_format_code_t format
;
67 uint32_t width
, height
;
72 struct virtio_gpu_scanout
{
75 uint32_t width
, height
;
79 struct virtio_gpu_update_cursor cursor
;
80 QEMUCursor
*current_cursor
;
83 struct virtio_gpu_requested_state
{
84 uint16_t width_mm
, height_mm
;
85 uint32_t width
, height
;
86 uint32_t refresh_rate
;
90 enum virtio_gpu_base_conf_flags
{
91 VIRTIO_GPU_FLAG_VIRGL_ENABLED
= 1,
92 VIRTIO_GPU_FLAG_STATS_ENABLED
,
93 VIRTIO_GPU_FLAG_EDID_ENABLED
,
94 VIRTIO_GPU_FLAG_DMABUF_ENABLED
,
95 VIRTIO_GPU_FLAG_BLOB_ENABLED
,
98 #define virtio_gpu_virgl_enabled(_cfg) \
99 (_cfg.flags & (1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED))
100 #define virtio_gpu_stats_enabled(_cfg) \
101 (_cfg.flags & (1 << VIRTIO_GPU_FLAG_STATS_ENABLED))
102 #define virtio_gpu_edid_enabled(_cfg) \
103 (_cfg.flags & (1 << VIRTIO_GPU_FLAG_EDID_ENABLED))
104 #define virtio_gpu_dmabuf_enabled(_cfg) \
105 (_cfg.flags & (1 << VIRTIO_GPU_FLAG_DMABUF_ENABLED))
106 #define virtio_gpu_blob_enabled(_cfg) \
107 (_cfg.flags & (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED))
109 struct virtio_gpu_base_conf
{
110 uint32_t max_outputs
;
116 struct virtio_gpu_ctrl_command
{
117 VirtQueueElement elem
;
119 struct virtio_gpu_ctrl_hdr cmd_hdr
;
122 QTAILQ_ENTRY(virtio_gpu_ctrl_command
) next
;
125 struct VirtIOGPUBase
{
126 VirtIODevice parent_obj
;
128 Error
*migration_blocker
;
130 struct virtio_gpu_base_conf conf
;
131 struct virtio_gpu_config virtio_config
;
132 const GraphicHwOps
*hw_ops
;
134 int renderer_blocked
;
137 struct virtio_gpu_scanout scanout
[VIRTIO_GPU_MAX_SCANOUTS
];
139 int enabled_output_bitmask
;
140 struct virtio_gpu_requested_state req_state
[VIRTIO_GPU_MAX_SCANOUTS
];
143 struct VirtIOGPUBaseClass
{
144 VirtioDeviceClass parent
;
146 void (*gl_flushed
)(VirtIOGPUBase
*g
);
149 #define VIRTIO_GPU_BASE_PROPERTIES(_state, _conf) \
150 DEFINE_PROP_UINT32("max_outputs", _state, _conf.max_outputs, 1), \
151 DEFINE_PROP_BIT("edid", _state, _conf.flags, \
152 VIRTIO_GPU_FLAG_EDID_ENABLED, true), \
153 DEFINE_PROP_UINT32("xres", _state, _conf.xres, 1280), \
154 DEFINE_PROP_UINT32("yres", _state, _conf.yres, 800)
156 typedef struct VGPUDMABuf
{
159 QTAILQ_ENTRY(VGPUDMABuf
) next
;
163 VirtIOGPUBase parent_obj
;
165 uint64_t conf_max_hostmem
;
168 VirtQueue
*cursor_vq
;
176 QTAILQ_HEAD(, virtio_gpu_simple_resource
) reslist
;
177 QTAILQ_HEAD(, virtio_gpu_ctrl_command
) cmdq
;
178 QTAILQ_HEAD(, virtio_gpu_ctrl_command
) fenceq
;
182 bool processing_cmdq
;
183 QEMUTimer
*fence_poll
;
184 QEMUTimer
*print_stats
;
188 uint32_t max_inflight
;
195 QTAILQ_HEAD(, VGPUDMABuf
) bufs
;
196 VGPUDMABuf
*primary
[VIRTIO_GPU_MAX_SCANOUTS
];
200 struct VirtIOGPUClass
{
201 VirtIOGPUBaseClass parent
;
203 void (*handle_ctrl
)(VirtIODevice
*vdev
, VirtQueue
*vq
);
204 void (*process_cmd
)(VirtIOGPU
*g
, struct virtio_gpu_ctrl_command
*cmd
);
205 void (*update_cursor_data
)(VirtIOGPU
*g
,
206 struct virtio_gpu_scanout
*s
,
207 uint32_t resource_id
);
211 struct VirtIOGPU parent_obj
;
213 bool renderer_inited
;
217 struct VhostUserGPU
{
218 VirtIOGPUBase parent_obj
;
220 VhostUserBackend
*vhost
;
221 int vhost_gpu_fd
; /* closed by the chardev */
222 CharBackend vhost_chr
;
223 QemuDmaBuf dmabuf
[VIRTIO_GPU_MAX_SCANOUTS
];
224 bool backend_blocked
;
227 #define VIRTIO_GPU_FILL_CMD(out) do { \
229 s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 0, \
230 &out, sizeof(out)); \
231 if (s != sizeof(out)) { \
232 qemu_log_mask(LOG_GUEST_ERROR, \
233 "%s: command size incorrect %zu vs %zu\n", \
234 __func__, s, sizeof(out)); \
239 /* virtio-gpu-base.c */
240 bool virtio_gpu_base_device_realize(DeviceState
*qdev
,
241 VirtIOHandleOutput ctrl_cb
,
242 VirtIOHandleOutput cursor_cb
,
244 void virtio_gpu_base_device_unrealize(DeviceState
*qdev
);
245 void virtio_gpu_base_reset(VirtIOGPUBase
*g
);
246 void virtio_gpu_base_fill_display_info(VirtIOGPUBase
*g
,
247 struct virtio_gpu_resp_display_info
*dpy_info
);
249 void virtio_gpu_base_generate_edid(VirtIOGPUBase
*g
, int scanout
,
250 struct virtio_gpu_resp_edid
*edid
);
252 void virtio_gpu_ctrl_response(VirtIOGPU
*g
,
253 struct virtio_gpu_ctrl_command
*cmd
,
254 struct virtio_gpu_ctrl_hdr
*resp
,
256 void virtio_gpu_ctrl_response_nodata(VirtIOGPU
*g
,
257 struct virtio_gpu_ctrl_command
*cmd
,
258 enum virtio_gpu_ctrl_type type
);
259 void virtio_gpu_get_display_info(VirtIOGPU
*g
,
260 struct virtio_gpu_ctrl_command
*cmd
);
261 void virtio_gpu_get_edid(VirtIOGPU
*g
,
262 struct virtio_gpu_ctrl_command
*cmd
);
263 int virtio_gpu_create_mapping_iov(VirtIOGPU
*g
,
264 uint32_t nr_entries
, uint32_t offset
,
265 struct virtio_gpu_ctrl_command
*cmd
,
266 uint64_t **addr
, struct iovec
**iov
,
268 void virtio_gpu_cleanup_mapping_iov(VirtIOGPU
*g
,
269 struct iovec
*iov
, uint32_t count
);
270 void virtio_gpu_process_cmdq(VirtIOGPU
*g
);
271 void virtio_gpu_device_realize(DeviceState
*qdev
, Error
**errp
);
272 void virtio_gpu_reset(VirtIODevice
*vdev
);
273 void virtio_gpu_simple_process_cmd(VirtIOGPU
*g
, struct virtio_gpu_ctrl_command
*cmd
);
274 void virtio_gpu_update_cursor_data(VirtIOGPU
*g
,
275 struct virtio_gpu_scanout
*s
,
276 uint32_t resource_id
);
278 /* virtio-gpu-udmabuf.c */
279 bool virtio_gpu_have_udmabuf(void);
280 void virtio_gpu_init_udmabuf(struct virtio_gpu_simple_resource
*res
);
281 void virtio_gpu_fini_udmabuf(struct virtio_gpu_simple_resource
*res
);
282 int virtio_gpu_update_dmabuf(VirtIOGPU
*g
,
284 struct virtio_gpu_simple_resource
*res
,
285 struct virtio_gpu_framebuffer
*fb
,
286 struct virtio_gpu_rect
*r
);
288 /* virtio-gpu-3d.c */
289 void virtio_gpu_virgl_process_cmd(VirtIOGPU
*g
,
290 struct virtio_gpu_ctrl_command
*cmd
);
291 void virtio_gpu_virgl_fence_poll(VirtIOGPU
*g
);
292 void virtio_gpu_virgl_reset_scanout(VirtIOGPU
*g
);
293 void virtio_gpu_virgl_reset(VirtIOGPU
*g
);
294 int virtio_gpu_virgl_init(VirtIOGPU
*g
);
295 int virtio_gpu_virgl_get_num_capsets(VirtIOGPU
*g
);