/* * Virtio GPU Device * * Copyright Red Hat, Inc. 2013-2014 * * Authors: * Dave Airlie * Gerd Hoffmann * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. */ #include "qemu/osdep.h" #include "qemu-common.h" #include "qemu/iov.h" #include "trace.h" #include "hw/virtio/virtio.h" #include "hw/virtio/virtio-gpu.h" #include "qapi/error.h" #ifdef CONFIG_VIRGL #include static struct virgl_renderer_callbacks virtio_gpu_3d_cbs; static void virgl_cmd_create_resource_2d(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_resource_create_2d c2d; struct virgl_renderer_resource_create_args args; VIRTIO_GPU_FILL_CMD(c2d); trace_virtio_gpu_cmd_res_create_2d(c2d.resource_id, c2d.format, c2d.width, c2d.height); args.handle = c2d.resource_id; args.target = 2; args.format = c2d.format; args.bind = (1 << 1); args.width = c2d.width; args.height = c2d.height; args.depth = 1; args.array_size = 1; args.last_level = 0; args.nr_samples = 0; args.flags = VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP; virgl_renderer_resource_create(&args, NULL, 0); } static void virgl_cmd_create_resource_3d(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_resource_create_3d c3d; struct virgl_renderer_resource_create_args args; VIRTIO_GPU_FILL_CMD(c3d); trace_virtio_gpu_cmd_res_create_3d(c3d.resource_id, c3d.format, c3d.width, c3d.height, c3d.depth); args.handle = c3d.resource_id; args.target = c3d.target; args.format = c3d.format; args.bind = c3d.bind; args.width = c3d.width; args.height = c3d.height; args.depth = c3d.depth; args.array_size = c3d.array_size; args.last_level = c3d.last_level; args.nr_samples = c3d.nr_samples; args.flags = c3d.flags; virgl_renderer_resource_create(&args, NULL, 0); } static void virgl_cmd_resource_unref(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_resource_unref unref; VIRTIO_GPU_FILL_CMD(unref); trace_virtio_gpu_cmd_res_unref(unref.resource_id); virgl_renderer_resource_unref(unref.resource_id); } static void virgl_cmd_context_create(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_ctx_create cc; VIRTIO_GPU_FILL_CMD(cc); trace_virtio_gpu_cmd_ctx_create(cc.hdr.ctx_id, cc.debug_name); virgl_renderer_context_create(cc.hdr.ctx_id, cc.nlen, cc.debug_name); } static void virgl_cmd_context_destroy(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_ctx_destroy cd; VIRTIO_GPU_FILL_CMD(cd); trace_virtio_gpu_cmd_ctx_destroy(cd.hdr.ctx_id); virgl_renderer_context_destroy(cd.hdr.ctx_id); } static void virtio_gpu_rect_update(VirtIOGPU *g, int idx, int x, int y, int width, int height) { if (!g->scanout[idx].con) { return; } dpy_gl_update(g->scanout[idx].con, x, y, width, height); } static void virgl_cmd_resource_flush(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_resource_flush rf; int i; VIRTIO_GPU_FILL_CMD(rf); trace_virtio_gpu_cmd_res_flush(rf.resource_id, rf.r.width, rf.r.height, rf.r.x, rf.r.y); for (i = 0; i < g->conf.max_outputs; i++) { if (g->scanout[i].resource_id != rf.resource_id) { continue; } virtio_gpu_rect_update(g, i, rf.r.x, rf.r.y, rf.r.width, rf.r.height); } } static void virgl_cmd_set_scanout(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_set_scanout ss; struct virgl_renderer_resource_info info; int ret; VIRTIO_GPU_FILL_CMD(ss); trace_virtio_gpu_cmd_set_scanout(ss.scanout_id, ss.resource_id, ss.r.width, ss.r.height, ss.r.x, ss.r.y); if (ss.scanout_id >= g->conf.max_outputs) { qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d", __func__, ss.scanout_id); cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID; return; } g->enable = 1; memset(&info, 0, sizeof(info)); if (ss.resource_id && ss.r.width && ss.r.height) { ret = virgl_renderer_resource_get_info(ss.resource_id, &info); if (ret == -1) { qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", __func__, ss.resource_id); cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; return; } qemu_console_resize(g->scanout[ss.scanout_id].con, ss.r.width, ss.r.height); virgl_renderer_force_ctx_0(); dpy_gl_scanout(g->scanout[ss.scanout_id].con, info.tex_id, info.flags & 1 /* FIXME: Y_0_TOP */, info.width, info.height, ss.r.x, ss.r.y, ss.r.width, ss.r.height); } else { if (ss.scanout_id != 0) { dpy_gfx_replace_surface(g->scanout[ss.scanout_id].con, NULL); } dpy_gl_scanout(g->scanout[ss.scanout_id].con, 0, false, 0, 0, 0, 0, 0, 0); } g->scanout[ss.scanout_id].resource_id = ss.resource_id; } static void virgl_cmd_submit_3d(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_cmd_submit cs; void *buf; size_t s; VIRTIO_GPU_FILL_CMD(cs); trace_virtio_gpu_cmd_ctx_submit(cs.hdr.ctx_id, cs.size); buf = g_malloc(cs.size); s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, sizeof(cs), buf, cs.size); if (s != cs.size) { qemu_log_mask(LOG_GUEST_ERROR, "%s: size mismatch (%zd/%d)", __func__, s, cs.size); cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; goto out; } if (virtio_gpu_stats_enabled(g->conf)) { g->stats.req_3d++; g->stats.bytes_3d += cs.size; } virgl_renderer_submit_cmd(buf, cs.hdr.ctx_id, cs.size / 4); out: g_free(buf); } static void virgl_cmd_transfer_to_host_2d(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_transfer_to_host_2d t2d; struct virtio_gpu_box box; VIRTIO_GPU_FILL_CMD(t2d); trace_virtio_gpu_cmd_res_xfer_toh_2d(t2d.resource_id); box.x = t2d.r.x; box.y = t2d.r.y; box.z = 0; box.w = t2d.r.width; box.h = t2d.r.height; box.d = 1; virgl_renderer_transfer_write_iov(t2d.resource_id, 0, 0, 0, 0, (struct virgl_box *)&box, t2d.offset, NULL, 0); } static void virgl_cmd_transfer_to_host_3d(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_transfer_host_3d t3d; VIRTIO_GPU_FILL_CMD(t3d); trace_virtio_gpu_cmd_res_xfer_toh_3d(t3d.resource_id); virgl_renderer_transfer_write_iov(t3d.resource_id, t3d.hdr.ctx_id, t3d.level, t3d.stride, t3d.layer_stride, (struct virgl_box *)&t3d.box, t3d.offset, NULL, 0); } static void virgl_cmd_transfer_from_host_3d(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_transfer_host_3d tf3d; VIRTIO_GPU_FILL_CMD(tf3d); trace_virtio_gpu_cmd_res_xfer_fromh_3d(tf3d.resource_id); virgl_renderer_transfer_read_iov(tf3d.resource_id, tf3d.hdr.ctx_id, tf3d.level, tf3d.stride, tf3d.layer_stride, (struct virgl_box *)&tf3d.box, tf3d.offset, NULL, 0); } static void virgl_resource_attach_backing(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_resource_attach_backing att_rb; struct iovec *res_iovs; int ret; VIRTIO_GPU_FILL_CMD(att_rb); trace_virtio_gpu_cmd_res_back_attach(att_rb.resource_id); ret = virtio_gpu_create_mapping_iov(&att_rb, cmd, NULL, &res_iovs); if (ret != 0) { cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; return; } ret = virgl_renderer_resource_attach_iov(att_rb.resource_id, res_iovs, att_rb.nr_entries); if (ret != 0) virtio_gpu_cleanup_mapping_iov(res_iovs, att_rb.nr_entries); } static void virgl_resource_detach_backing(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_resource_detach_backing detach_rb; struct iovec *res_iovs = NULL; int num_iovs = 0; VIRTIO_GPU_FILL_CMD(detach_rb); trace_virtio_gpu_cmd_res_back_detach(detach_rb.resource_id); virgl_renderer_resource_detach_iov(detach_rb.resource_id, &res_iovs, &num_iovs); if (res_iovs == NULL || num_iovs == 0) { return; } virtio_gpu_cleanup_mapping_iov(res_iovs, num_iovs); } static void virgl_cmd_ctx_attach_resource(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_ctx_resource att_res; VIRTIO_GPU_FILL_CMD(att_res); trace_virtio_gpu_cmd_ctx_res_attach(att_res.hdr.ctx_id, att_res.resource_id); virgl_renderer_ctx_attach_resource(att_res.hdr.ctx_id, att_res.resource_id); } static void virgl_cmd_ctx_detach_resource(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_ctx_resource det_res; VIRTIO_GPU_FILL_CMD(det_res); trace_virtio_gpu_cmd_ctx_res_detach(det_res.hdr.ctx_id, det_res.resource_id); virgl_renderer_ctx_detach_resource(det_res.hdr.ctx_id, det_res.resource_id); } static void virgl_cmd_get_capset_info(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_get_capset_info info; struct virtio_gpu_resp_capset_info resp; VIRTIO_GPU_FILL_CMD(info); memset(&resp, 0, sizeof(resp)); if (info.capset_index == 0) { resp.capset_id = VIRTIO_GPU_CAPSET_VIRGL; virgl_renderer_get_cap_set(resp.capset_id, &resp.capset_max_version, &resp.capset_max_size); } else { resp.capset_max_version = 0; resp.capset_max_size = 0; } resp.hdr.type = VIRTIO_GPU_RESP_OK_CAPSET_INFO; virtio_gpu_ctrl_response(g, cmd, &resp.hdr, sizeof(resp)); } static void virgl_cmd_get_capset(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_get_capset gc; struct virtio_gpu_resp_capset *resp; uint32_t max_ver, max_size; VIRTIO_GPU_FILL_CMD(gc); virgl_renderer_get_cap_set(gc.capset_id, &max_ver, &max_size); if (!max_size) { cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; return; } resp = g_malloc(sizeof(*resp) + max_size); resp->hdr.type = VIRTIO_GPU_RESP_OK_CAPSET; virgl_renderer_fill_caps(gc.capset_id, gc.capset_version, (void *)resp->capset_data); virtio_gpu_ctrl_response(g, cmd, &resp->hdr, sizeof(*resp) + max_size); g_free(resp); } void virtio_gpu_virgl_process_cmd(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { VIRTIO_GPU_FILL_CMD(cmd->cmd_hdr); cmd->waiting = g->renderer_blocked; if (cmd->waiting) { return; } virgl_renderer_force_ctx_0(); switch (cmd->cmd_hdr.type) { case VIRTIO_GPU_CMD_CTX_CREATE: virgl_cmd_context_create(g, cmd); break; case VIRTIO_GPU_CMD_CTX_DESTROY: virgl_cmd_context_destroy(g, cmd); break; case VIRTIO_GPU_CMD_RESOURCE_CREATE_2D: virgl_cmd_create_resource_2d(g, cmd); break; case VIRTIO_GPU_CMD_RESOURCE_CREATE_3D: virgl_cmd_create_resource_3d(g, cmd); break; case VIRTIO_GPU_CMD_SUBMIT_3D: virgl_cmd_submit_3d(g, cmd); break; case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D: virgl_cmd_transfer_to_host_2d(g, cmd); break; case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D: virgl_cmd_transfer_to_host_3d(g, cmd); break; case VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D: virgl_cmd_transfer_from_host_3d(g, cmd); break; case VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING: virgl_resource_attach_backing(g, cmd); break; case VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING: virgl_resource_detach_backing(g, cmd); break; case VIRTIO_GPU_CMD_SET_SCANOUT: virgl_cmd_set_scanout(g, cmd); break; case VIRTIO_GPU_CMD_RESOURCE_FLUSH: virgl_cmd_resource_flush(g, cmd); break; case VIRTIO_GPU_CMD_RESOURCE_UNREF: virgl_cmd_resource_unref(g, cmd); break; case VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE: /* TODO add security */ virgl_cmd_ctx_attach_resource(g, cmd); break; case VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE: /* TODO add security */ virgl_cmd_ctx_detach_resource(g, cmd); break; case VIRTIO_GPU_CMD_GET_CAPSET_INFO: virgl_cmd_get_capset_info(g, cmd); break; case VIRTIO_GPU_CMD_GET_CAPSET: virgl_cmd_get_capset(g, cmd); break; case VIRTIO_GPU_CMD_GET_DISPLAY_INFO: virtio_gpu_get_display_info(g, cmd); break; default: cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; break; } if (cmd->finished) { return; } if (cmd->error) { fprintf(stderr, "%s: ctrl 0x%x, error 0x%x\n", __func__, cmd->cmd_hdr.type, cmd->error); virtio_gpu_ctrl_response_nodata(g, cmd, cmd->error); return; } if (!(cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE)) { virtio_gpu_ctrl_response_nodata(g, cmd, VIRTIO_GPU_RESP_OK_NODATA); return; } trace_virtio_gpu_fence_ctrl(cmd->cmd_hdr.fence_id, cmd->cmd_hdr.type); virgl_renderer_create_fence(cmd->cmd_hdr.fence_id, cmd->cmd_hdr.type); } static void virgl_write_fence(void *opaque, uint32_t fence) { VirtIOGPU *g = opaque; struct virtio_gpu_ctrl_command *cmd, *tmp; QTAILQ_FOREACH_SAFE(cmd, &g->fenceq, next, tmp) { /* * the guest can end up emitting fences out of order * so we should check all fenced cmds not just the first one. */ if (cmd->cmd_hdr.fence_id > fence) { continue; } trace_virtio_gpu_fence_resp(cmd->cmd_hdr.fence_id); virtio_gpu_ctrl_response_nodata(g, cmd, VIRTIO_GPU_RESP_OK_NODATA); QTAILQ_REMOVE(&g->fenceq, cmd, next); g_free(cmd); g->inflight--; if (virtio_gpu_stats_enabled(g->conf)) { fprintf(stderr, "inflight: %3d (-)\r", g->inflight); } } } static virgl_renderer_gl_context virgl_create_context(void *opaque, int scanout_idx, struct virgl_renderer_gl_ctx_param *params) { VirtIOGPU *g = opaque; QEMUGLContext ctx; QEMUGLParams qparams; qparams.major_ver = params->major_ver; qparams.minor_ver = params->minor_ver; ctx = dpy_gl_ctx_create(g->scanout[scanout_idx].con, &qparams); return (virgl_renderer_gl_context)ctx; } static void virgl_destroy_context(void *opaque, virgl_renderer_gl_context ctx) { VirtIOGPU *g = opaque; QEMUGLContext qctx = (QEMUGLContext)ctx; dpy_gl_ctx_destroy(g->scanout[0].con, qctx); } static int virgl_make_context_current(void *opaque, int scanout_idx, virgl_renderer_gl_context ctx) { VirtIOGPU *g = opaque; QEMUGLContext qctx = (QEMUGLContext)ctx; return dpy_gl_ctx_make_current(g->scanout[scanout_idx].con, qctx); } static struct virgl_renderer_callbacks virtio_gpu_3d_cbs = { .version = 1, .write_fence = virgl_write_fence, .create_gl_context = virgl_create_context, .destroy_gl_context = virgl_destroy_context, .make_current = virgl_make_context_current, }; static void virtio_gpu_print_stats(void *opaque) { VirtIOGPU *g = opaque; if (g->stats.requests) { fprintf(stderr, "stats: vq req %4d, %3d -- 3D %4d (%5d)\n", g->stats.requests, g->stats.max_inflight, g->stats.req_3d, g->stats.bytes_3d); g->stats.requests = 0; g->stats.max_inflight = 0; g->stats.req_3d = 0; g->stats.bytes_3d = 0; } else { fprintf(stderr, "stats: idle\r"); } timer_mod(g->print_stats, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 1000); } static void virtio_gpu_fence_poll(void *opaque) { VirtIOGPU *g = opaque; virgl_renderer_poll(); virtio_gpu_process_cmdq(g); if (!QTAILQ_EMPTY(&g->cmdq) || !QTAILQ_EMPTY(&g->fenceq)) { timer_mod(g->fence_poll, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 10); } } void virtio_gpu_virgl_fence_poll(VirtIOGPU *g) { virtio_gpu_fence_poll(g); } void virtio_gpu_virgl_reset(VirtIOGPU *g) { int i; /* virgl_renderer_reset() ??? */ for (i = 0; i < g->conf.max_outputs; i++) { if (i != 0) { dpy_gfx_replace_surface(g->scanout[i].con, NULL); } dpy_gl_scanout(g->scanout[i].con, 0, false, 0, 0, 0, 0, 0, 0); } } int virtio_gpu_virgl_init(VirtIOGPU *g) { int ret; ret = virgl_renderer_init(g, 0, &virtio_gpu_3d_cbs); if (ret != 0) { return ret; } g->fence_poll = timer_new_ms(QEMU_CLOCK_VIRTUAL, virtio_gpu_fence_poll, g); if (virtio_gpu_stats_enabled(g->conf)) { g->print_stats = timer_new_ms(QEMU_CLOCK_VIRTUAL, virtio_gpu_print_stats, g); timer_mod(g->print_stats, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 1000); } return 0; } #endif /* CONFIG_VIRGL */