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 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 uint32_t max_outputs; 72 uint32_t flags; 73 }; 74 75 struct virtio_gpu_ctrl_command { 76 VirtQueueElement elem; 77 VirtQueue *vq; 78 struct virtio_gpu_ctrl_hdr cmd_hdr; 79 uint32_t error; 80 bool waiting; 81 bool finished; 82 QTAILQ_ENTRY(virtio_gpu_ctrl_command) next; 83 }; 84 85 typedef struct VirtIOGPU { 86 VirtIODevice parent_obj; 87 88 QEMUBH *ctrl_bh; 89 QEMUBH *cursor_bh; 90 VirtQueue *ctrl_vq; 91 VirtQueue *cursor_vq; 92 93 int enable; 94 95 int config_size; 96 DeviceState *qdev; 97 98 QTAILQ_HEAD(, virtio_gpu_simple_resource) reslist; 99 QTAILQ_HEAD(, virtio_gpu_ctrl_command) cmdq; 100 QTAILQ_HEAD(, virtio_gpu_ctrl_command) fenceq; 101 102 struct virtio_gpu_scanout scanout[VIRTIO_GPU_MAX_SCANOUTS]; 103 struct virtio_gpu_requested_state req_state[VIRTIO_GPU_MAX_SCANOUTS]; 104 105 struct virtio_gpu_conf conf; 106 int enabled_output_bitmask; 107 struct virtio_gpu_config virtio_config; 108 109 bool use_virgl_renderer; 110 bool renderer_inited; 111 int renderer_blocked; 112 QEMUTimer *fence_poll; 113 QEMUTimer *print_stats; 114 115 uint32_t inflight; 116 struct { 117 uint32_t max_inflight; 118 uint32_t requests; 119 uint32_t req_3d; 120 uint32_t bytes_3d; 121 } stats; 122 123 Error *migration_blocker; 124 } VirtIOGPU; 125 126 extern const GraphicHwOps virtio_gpu_ops; 127 128 /* to share between PCI and VGA */ 129 #define DEFINE_VIRTIO_GPU_PCI_PROPERTIES(_state) \ 130 DEFINE_PROP_BIT("ioeventfd", _state, flags, \ 131 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false), \ 132 DEFINE_PROP_UINT32("vectors", _state, nvectors, 3) 133 134 #define VIRTIO_GPU_FILL_CMD(out) do { \ 135 size_t s; \ 136 s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 0, \ 137 &out, sizeof(out)); \ 138 if (s != sizeof(out)) { \ 139 qemu_log_mask(LOG_GUEST_ERROR, \ 140 "%s: command size incorrect %zu vs %zu\n", \ 141 __func__, s, sizeof(out)); \ 142 return; \ 143 } \ 144 } while (0) 145 146 /* virtio-gpu.c */ 147 void virtio_gpu_ctrl_response(VirtIOGPU *g, 148 struct virtio_gpu_ctrl_command *cmd, 149 struct virtio_gpu_ctrl_hdr *resp, 150 size_t resp_len); 151 void virtio_gpu_ctrl_response_nodata(VirtIOGPU *g, 152 struct virtio_gpu_ctrl_command *cmd, 153 enum virtio_gpu_ctrl_type type); 154 void virtio_gpu_get_display_info(VirtIOGPU *g, 155 struct virtio_gpu_ctrl_command *cmd); 156 int virtio_gpu_create_mapping_iov(struct virtio_gpu_resource_attach_backing *ab, 157 struct virtio_gpu_ctrl_command *cmd, 158 uint64_t **addr, struct iovec **iov); 159 void virtio_gpu_cleanup_mapping_iov(struct iovec *iov, uint32_t count); 160 void virtio_gpu_process_cmdq(VirtIOGPU *g); 161 162 /* virtio-gpu-3d.c */ 163 void virtio_gpu_virgl_process_cmd(VirtIOGPU *g, 164 struct virtio_gpu_ctrl_command *cmd); 165 void virtio_gpu_virgl_fence_poll(VirtIOGPU *g); 166 void virtio_gpu_virgl_reset(VirtIOGPU *g); 167 int virtio_gpu_virgl_init(VirtIOGPU *g); 168 169 #endif 170