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/*
* Virtio GPU Device
*
* Copyright Red Hat, Inc. 2013-2014
*
* Authors:
* Dave Airlie <airlied@redhat.com>
* Gerd Hoffmann <kraxel@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2.
* See the COPYING file in the top-level directory.
*/
#ifndef HW_VIRTIO_GPU_H
#define HW_VIRTIO_GPU_H
#include "qemu/queue.h"
#include "ui/qemu-pixman.h"
#include "ui/console.h"
#include "hw/virtio/virtio.h"
#include "qemu/log.h"
#include "sysemu/vhost-user-backend.h"
#include "standard-headers/linux/virtio_gpu.h"
#define TYPE_VIRTIO_GPU_BASE "virtio-gpu-base"
#define VIRTIO_GPU_BASE(obj) \
OBJECT_CHECK(VirtIOGPUBase, (obj), TYPE_VIRTIO_GPU_BASE)
#define VIRTIO_GPU_BASE_GET_CLASS(obj) \
OBJECT_GET_CLASS(VirtIOGPUBaseClass, obj, TYPE_VIRTIO_GPU_BASE)
#define VIRTIO_GPU_BASE_CLASS(klass) \
OBJECT_CLASS_CHECK(VirtIOGPUBaseClass, klass, TYPE_VIRTIO_GPU_BASE)
#define TYPE_VIRTIO_GPU "virtio-gpu-device"
#define VIRTIO_GPU(obj) \
OBJECT_CHECK(VirtIOGPU, (obj), TYPE_VIRTIO_GPU)
#define TYPE_VHOST_USER_GPU "vhost-user-gpu"
#define VIRTIO_ID_GPU 16
struct virtio_gpu_simple_resource {
uint32_t resource_id;
uint32_t width;
uint32_t height;
uint32_t format;
uint64_t *addrs;
struct iovec *iov;
unsigned int iov_cnt;
uint32_t scanout_bitmask;
pixman_image_t *image;
uint64_t hostmem;
QTAILQ_ENTRY(virtio_gpu_simple_resource) next;
};
struct virtio_gpu_scanout {
QemuConsole *con;
DisplaySurface *ds;
uint32_t width, height;
int x, y;
int invalidate;
uint32_t resource_id;
struct virtio_gpu_update_cursor cursor;
QEMUCursor *current_cursor;
};
struct virtio_gpu_requested_state {
uint32_t width, height;
int x, y;
};
enum virtio_gpu_base_conf_flags {
VIRTIO_GPU_FLAG_VIRGL_ENABLED = 1,
VIRTIO_GPU_FLAG_STATS_ENABLED,
VIRTIO_GPU_FLAG_EDID_ENABLED,
};
#define virtio_gpu_virgl_enabled(_cfg) \
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED))
#define virtio_gpu_stats_enabled(_cfg) \
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_STATS_ENABLED))
#define virtio_gpu_edid_enabled(_cfg) \
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_EDID_ENABLED))
struct virtio_gpu_base_conf {
uint32_t max_outputs;
uint32_t flags;
uint32_t xres;
uint32_t yres;
};
struct virtio_gpu_ctrl_command {
VirtQueueElement elem;
VirtQueue *vq;
struct virtio_gpu_ctrl_hdr cmd_hdr;
uint32_t error;
bool finished;
QTAILQ_ENTRY(virtio_gpu_ctrl_command) next;
};
typedef struct VirtIOGPUBase {
VirtIODevice parent_obj;
Error *migration_blocker;
struct virtio_gpu_base_conf conf;
struct virtio_gpu_config virtio_config;
bool use_virgl_renderer;
int renderer_blocked;
int enable;
struct virtio_gpu_scanout scanout[VIRTIO_GPU_MAX_SCANOUTS];
int enabled_output_bitmask;
struct virtio_gpu_requested_state req_state[VIRTIO_GPU_MAX_SCANOUTS];
} VirtIOGPUBase;
typedef struct VirtIOGPUBaseClass {
VirtioDeviceClass parent;
void (*gl_unblock)(VirtIOGPUBase *g);
} VirtIOGPUBaseClass;
#define VIRTIO_GPU_BASE_PROPERTIES(_state, _conf) \
DEFINE_PROP_UINT32("max_outputs", _state, _conf.max_outputs, 1), \
DEFINE_PROP_BIT("edid", _state, _conf.flags, \
VIRTIO_GPU_FLAG_EDID_ENABLED, true), \
DEFINE_PROP_UINT32("xres", _state, _conf.xres, 1024), \
DEFINE_PROP_UINT32("yres", _state, _conf.yres, 768)
typedef struct VirtIOGPU {
VirtIOGPUBase parent_obj;
uint64_t conf_max_hostmem;
VirtQueue *ctrl_vq;
VirtQueue *cursor_vq;
QEMUBH *ctrl_bh;
QEMUBH *cursor_bh;
QTAILQ_HEAD(, virtio_gpu_simple_resource) reslist;
QTAILQ_HEAD(, virtio_gpu_ctrl_command) cmdq;
QTAILQ_HEAD(, virtio_gpu_ctrl_command) fenceq;
uint64_t hostmem;
bool renderer_inited;
bool renderer_reset;
QEMUTimer *fence_poll;
QEMUTimer *print_stats;
uint32_t inflight;
struct {
uint32_t max_inflight;
uint32_t requests;
uint32_t req_3d;
uint32_t bytes_3d;
} stats;
} VirtIOGPU;
typedef struct VhostUserGPU {
VirtIOGPUBase parent_obj;
VhostUserBackend *vhost;
int vhost_gpu_fd; /* closed by the chardev */
CharBackend vhost_chr;
QemuDmaBuf dmabuf[VIRTIO_GPU_MAX_SCANOUTS];
bool backend_blocked;
} VhostUserGPU;
extern const GraphicHwOps virtio_gpu_ops;
#define VIRTIO_GPU_FILL_CMD(out) do { \
size_t s; \
s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 0, \
&out, sizeof(out)); \
if (s != sizeof(out)) { \
qemu_log_mask(LOG_GUEST_ERROR, \
"%s: command size incorrect %zu vs %zu\n", \
__func__, s, sizeof(out)); \
return; \
} \
} while (0)
/* virtio-gpu-base.c */
bool virtio_gpu_base_device_realize(DeviceState *qdev,
VirtIOHandleOutput ctrl_cb,
VirtIOHandleOutput cursor_cb,
Error **errp);
void virtio_gpu_base_reset(VirtIOGPUBase *g);
void virtio_gpu_base_fill_display_info(VirtIOGPUBase *g,
struct virtio_gpu_resp_display_info *dpy_info);
/* virtio-gpu.c */
void virtio_gpu_ctrl_response(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd,
struct virtio_gpu_ctrl_hdr *resp,
size_t resp_len);
void virtio_gpu_ctrl_response_nodata(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd,
enum virtio_gpu_ctrl_type type);
void virtio_gpu_get_display_info(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd);
void virtio_gpu_get_edid(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd);
int virtio_gpu_create_mapping_iov(VirtIOGPU *g,
struct virtio_gpu_resource_attach_backing *ab,
struct virtio_gpu_ctrl_command *cmd,
uint64_t **addr, struct iovec **iov);
void virtio_gpu_cleanup_mapping_iov(VirtIOGPU *g,
struct iovec *iov, uint32_t count);
void virtio_gpu_process_cmdq(VirtIOGPU *g);
/* virtio-gpu-3d.c */
void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd);
void virtio_gpu_virgl_fence_poll(VirtIOGPU *g);
void virtio_gpu_virgl_reset(VirtIOGPU *g);
int virtio_gpu_virgl_init(VirtIOGPU *g);
int virtio_gpu_virgl_get_num_capsets(VirtIOGPU *g);
#endif
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