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