1 /* 2 * Virtio GPU Device 3 * 4 * Copyright Red Hat, Inc. 2013-2014 5 * 6 * Authors: 7 * Dave Airlie <airlied@redhat.com> 8 * Gerd Hoffmann <kraxel@redhat.com> 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2. 11 * See the COPYING file in the top-level directory. 12 */ 13 14 #ifndef HW_VIRTIO_GPU_H 15 #define HW_VIRTIO_GPU_H 16 17 #include "qemu/queue.h" 18 #include "ui/qemu-pixman.h" 19 #include "ui/console.h" 20 #include "hw/virtio/virtio.h" 21 #include "qemu/log.h" 22 23 #include "standard-headers/linux/virtio_gpu.h" 24 #define TYPE_VIRTIO_GPU "virtio-gpu-device" 25 #define VIRTIO_GPU(obj) \ 26 OBJECT_CHECK(VirtIOGPU, (obj), TYPE_VIRTIO_GPU) 27 28 #define VIRTIO_ID_GPU 16 29 30 struct virtio_gpu_simple_resource { 31 uint32_t resource_id; 32 uint32_t width; 33 uint32_t height; 34 uint32_t format; 35 uint64_t *addrs; 36 struct iovec *iov; 37 unsigned int iov_cnt; 38 uint32_t scanout_bitmask; 39 pixman_image_t *image; 40 uint64_t hostmem; 41 QTAILQ_ENTRY(virtio_gpu_simple_resource) next; 42 }; 43 44 struct virtio_gpu_scanout { 45 QemuConsole *con; 46 DisplaySurface *ds; 47 uint32_t width, height; 48 int x, y; 49 int invalidate; 50 uint32_t resource_id; 51 struct virtio_gpu_update_cursor cursor; 52 QEMUCursor *current_cursor; 53 }; 54 55 struct virtio_gpu_requested_state { 56 uint32_t width, height; 57 int x, y; 58 }; 59 60 enum virtio_gpu_conf_flags { 61 VIRTIO_GPU_FLAG_VIRGL_ENABLED = 1, 62 VIRTIO_GPU_FLAG_STATS_ENABLED, 63 }; 64 65 #define virtio_gpu_virgl_enabled(_cfg) \ 66 (_cfg.flags & (1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED)) 67 #define virtio_gpu_stats_enabled(_cfg) \ 68 (_cfg.flags & (1 << VIRTIO_GPU_FLAG_STATS_ENABLED)) 69 70 struct virtio_gpu_conf { 71 uint64_t max_hostmem; 72 uint32_t max_outputs; 73 uint32_t flags; 74 uint32_t xres; 75 uint32_t yres; 76 }; 77 78 struct virtio_gpu_ctrl_command { 79 VirtQueueElement elem; 80 VirtQueue *vq; 81 struct virtio_gpu_ctrl_hdr cmd_hdr; 82 uint32_t error; 83 bool waiting; 84 bool finished; 85 QTAILQ_ENTRY(virtio_gpu_ctrl_command) next; 86 }; 87 88 typedef struct VirtIOGPU { 89 VirtIODevice parent_obj; 90 91 QEMUBH *ctrl_bh; 92 QEMUBH *cursor_bh; 93 VirtQueue *ctrl_vq; 94 VirtQueue *cursor_vq; 95 96 int enable; 97 98 int config_size; 99 DeviceState *qdev; 100 101 QTAILQ_HEAD(, virtio_gpu_simple_resource) reslist; 102 QTAILQ_HEAD(, virtio_gpu_ctrl_command) cmdq; 103 QTAILQ_HEAD(, virtio_gpu_ctrl_command) fenceq; 104 105 struct virtio_gpu_scanout scanout[VIRTIO_GPU_MAX_SCANOUTS]; 106 struct virtio_gpu_requested_state req_state[VIRTIO_GPU_MAX_SCANOUTS]; 107 108 struct virtio_gpu_conf conf; 109 uint64_t hostmem; 110 int enabled_output_bitmask; 111 struct virtio_gpu_config virtio_config; 112 113 bool use_virgl_renderer; 114 bool renderer_inited; 115 int renderer_blocked; 116 QEMUTimer *fence_poll; 117 QEMUTimer *print_stats; 118 119 uint32_t inflight; 120 struct { 121 uint32_t max_inflight; 122 uint32_t requests; 123 uint32_t req_3d; 124 uint32_t bytes_3d; 125 } stats; 126 127 Error *migration_blocker; 128 } VirtIOGPU; 129 130 extern const GraphicHwOps virtio_gpu_ops; 131 132 /* to share between PCI and VGA */ 133 #define DEFINE_VIRTIO_GPU_PCI_PROPERTIES(_state) \ 134 DEFINE_PROP_BIT("ioeventfd", _state, flags, \ 135 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false), \ 136 DEFINE_PROP_UINT32("vectors", _state, nvectors, 3) 137 138 #define VIRTIO_GPU_FILL_CMD(out) do { \ 139 size_t s; \ 140 s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 0, \ 141 &out, sizeof(out)); \ 142 if (s != sizeof(out)) { \ 143 qemu_log_mask(LOG_GUEST_ERROR, \ 144 "%s: command size incorrect %zu vs %zu\n", \ 145 __func__, s, sizeof(out)); \ 146 return; \ 147 } \ 148 } while (0) 149 150 /* virtio-gpu.c */ 151 void virtio_gpu_ctrl_response(VirtIOGPU *g, 152 struct virtio_gpu_ctrl_command *cmd, 153 struct virtio_gpu_ctrl_hdr *resp, 154 size_t resp_len); 155 void virtio_gpu_ctrl_response_nodata(VirtIOGPU *g, 156 struct virtio_gpu_ctrl_command *cmd, 157 enum virtio_gpu_ctrl_type type); 158 void virtio_gpu_get_display_info(VirtIOGPU *g, 159 struct virtio_gpu_ctrl_command *cmd); 160 int virtio_gpu_create_mapping_iov(struct virtio_gpu_resource_attach_backing *ab, 161 struct virtio_gpu_ctrl_command *cmd, 162 uint64_t **addr, struct iovec **iov); 163 void virtio_gpu_cleanup_mapping_iov(struct iovec *iov, uint32_t count); 164 void virtio_gpu_process_cmdq(VirtIOGPU *g); 165 166 /* virtio-gpu-3d.c */ 167 void virtio_gpu_virgl_process_cmd(VirtIOGPU *g, 168 struct virtio_gpu_ctrl_command *cmd); 169 void virtio_gpu_virgl_fence_poll(VirtIOGPU *g); 170 void virtio_gpu_virgl_reset(VirtIOGPU *g); 171 void virtio_gpu_gl_block(void *opaque, bool block); 172 int virtio_gpu_virgl_init(VirtIOGPU *g); 173 int virtio_gpu_virgl_get_num_capsets(VirtIOGPU *g); 174 #endif 175