--- /dev/null
+/*
+ * Virtio GPU Device
+ *
+ * Copyright Red Hat, Inc. 2013-2014
+ *
+ * Authors:
+ * Dave Airlie <airlied@redhat.com>
+ * Gerd Hoffmann <kraxel@redhat.com>
+ *
+ * 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"
+
+#ifdef CONFIG_VIRGL
+
+#include "virglrenderer.h"
+
+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 < VIRTIO_GPU_MAX_SCANOUT; 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 >= VIRTIO_GPU_MAX_SCANOUT) {
+ 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 */,
+ 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);
+ }
+ 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, &res_iovs);
+ if (ret != 0) {
+ cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
+ return;
+ }
+
+ virgl_renderer_resource_attach_iov(att_rb.resource_id,
+ 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);
+
+ 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);
+ 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);
+ }
+}
+
+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 */
Code Review / kvmfornfv.git / blobdiff