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 _QEMU_VIRTIO_VGA_H 15 #define _QEMU_VIRTIO_VGA_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 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 #define VIRTIO_GPU_MAX_SCANOUT 4 31 32 struct virtio_gpu_simple_resource { 33 uint32_t resource_id; 34 uint32_t width; 35 uint32_t height; 36 uint32_t format; 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 QEMUCursor *current_cursor; 52 }; 53 54 struct virtio_gpu_requested_state { 55 uint32_t width, height; 56 int x, y; 57 }; 58 59 enum virtio_gpu_conf_flags { 60 VIRTIO_GPU_FLAG_VIRGL_ENABLED = 1, 61 VIRTIO_GPU_FLAG_STATS_ENABLED, 62 }; 63 64 #define virtio_gpu_virgl_enabled(_cfg) \ 65 (_cfg.flags & (1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED)) 66 #define virtio_gpu_stats_enabled(_cfg) \ 67 (_cfg.flags & (1 << VIRTIO_GPU_FLAG_STATS_ENABLED)) 68 69 struct virtio_gpu_conf { 70 uint32_t max_outputs; 71 uint32_t flags; 72 }; 73 74 struct virtio_gpu_ctrl_command { 75 VirtQueueElement elem; 76 VirtQueue *vq; 77 struct virtio_gpu_ctrl_hdr cmd_hdr; 78 uint32_t error; 79 bool waiting; 80 bool finished; 81 QTAILQ_ENTRY(virtio_gpu_ctrl_command) next; 82 }; 83 84 typedef struct VirtIOGPU { 85 VirtIODevice parent_obj; 86 87 QEMUBH *ctrl_bh; 88 QEMUBH *cursor_bh; 89 VirtQueue *ctrl_vq; 90 VirtQueue *cursor_vq; 91 92 int enable; 93 94 int config_size; 95 DeviceState *qdev; 96 97 QTAILQ_HEAD(, virtio_gpu_simple_resource) reslist; 98 QTAILQ_HEAD(, virtio_gpu_ctrl_command) cmdq; 99 QTAILQ_HEAD(, virtio_gpu_ctrl_command) fenceq; 100 101 struct virtio_gpu_scanout scanout[VIRTIO_GPU_MAX_SCANOUT]; 102 struct virtio_gpu_requested_state req_state[VIRTIO_GPU_MAX_SCANOUT]; 103 104 struct virtio_gpu_conf conf; 105 int enabled_output_bitmask; 106 struct virtio_gpu_config virtio_config; 107 108 bool use_virgl_renderer; 109 bool renderer_inited; 110 bool renderer_blocked; 111 QEMUTimer *fence_poll; 112 QEMUTimer *print_stats; 113 114 uint32_t inflight; 115 struct { 116 uint32_t max_inflight; 117 uint32_t requests; 118 uint32_t req_3d; 119 uint32_t bytes_3d; 120 } stats; 121 } VirtIOGPU; 122 123 extern const GraphicHwOps virtio_gpu_ops; 124 125 /* to share between PCI and VGA */ 126 #define DEFINE_VIRTIO_GPU_PCI_PROPERTIES(_state) \ 127 DEFINE_PROP_BIT("ioeventfd", _state, flags, \ 128 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false), \ 129 DEFINE_PROP_UINT32("vectors", _state, nvectors, 3) 130 131 #define VIRTIO_GPU_FILL_CMD(out) do { \ 132 size_t s; \ 133 s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 0, \ 134 &out, sizeof(out)); \ 135 if (s != sizeof(out)) { \ 136 qemu_log_mask(LOG_GUEST_ERROR, \ 137 "%s: command size incorrect %zu vs %zu\n", \ 138 __func__, s, sizeof(out)); \ 139 return; \ 140 } \ 141 } while (0) 142 143 /* virtio-gpu.c */ 144 void virtio_gpu_ctrl_response(VirtIOGPU *g, 145 struct virtio_gpu_ctrl_command *cmd, 146 struct virtio_gpu_ctrl_hdr *resp, 147 size_t resp_len); 148 void virtio_gpu_ctrl_response_nodata(VirtIOGPU *g, 149 struct virtio_gpu_ctrl_command *cmd, 150 enum virtio_gpu_ctrl_type type); 151 void virtio_gpu_get_display_info(VirtIOGPU *g, 152 struct virtio_gpu_ctrl_command *cmd); 153 int virtio_gpu_create_mapping_iov(struct virtio_gpu_resource_attach_backing *ab, 154 struct virtio_gpu_ctrl_command *cmd, 155 struct iovec **iov); 156 void virtio_gpu_cleanup_mapping_iov(struct iovec *iov, uint32_t count); 157 void virtio_gpu_process_cmdq(VirtIOGPU *g); 158 159 /* virtio-gpu-3d.c */ 160 void virtio_gpu_virgl_process_cmd(VirtIOGPU *g, 161 struct virtio_gpu_ctrl_command *cmd); 162 void virtio_gpu_virgl_fence_poll(VirtIOGPU *g); 163 void virtio_gpu_virgl_reset(VirtIOGPU *g); 164 int virtio_gpu_virgl_init(VirtIOGPU *g); 165 166 #endif 167