From: Vivek Kasireddy <vivek.kasireddy@intel.com>
To: qemu-devel@nongnu.org
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>,
Gerd Hoffmann <kraxel@redhat.com>
Subject: [PATCH v2 8/8] virtio-gpu: Add gl_flushed callback
Date: Thu, 10 Jun 2021 15:48:37 -0700 [thread overview]
Message-ID: <20210610224837.670192-9-vivek.kasireddy@intel.com> (raw)
In-Reply-To: <20210610224837.670192-1-vivek.kasireddy@intel.com>
Adding this callback provides a way to determine when the UI
has submitted the buffer to the Host windowing system. Making
the guest wait for this event will ensure that the dmabuf/buffer
updates are synchronized.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
---
hw/display/virtio-gpu.c | 44 ++++++++++++++++++++++++++++++++++++++++-
1 file changed, 43 insertions(+), 1 deletion(-)
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index 4d549377cb..bd96332973 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -982,7 +982,7 @@ void virtio_gpu_simple_process_cmd(VirtIOGPU *g,
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
break;
}
- if (!cmd->finished) {
+ if (!cmd->finished && !(cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE)) {
virtio_gpu_ctrl_response_nodata(g, cmd, cmd->error ? cmd->error :
VIRTIO_GPU_RESP_OK_NODATA);
}
@@ -1040,6 +1040,46 @@ void virtio_gpu_process_cmdq(VirtIOGPU *g)
g->processing_cmdq = false;
}
+static void virtio_gpu_signal_fence(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd,
+ enum virtio_gpu_ctrl_type type)
+{
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_resource_flush rf;
+
+ VIRTIO_GPU_FILL_CMD(rf);
+ virtio_gpu_bswap_32(&rf, sizeof(rf));
+ res = virtio_gpu_find_check_resource(g, rf.resource_id, true,
+ __func__, &cmd->error);
+ if (res) {
+ virtio_gpu_resource_wait_sync(g, res);
+ }
+ virtio_gpu_ctrl_response_nodata(g, cmd, VIRTIO_GPU_RESP_OK_NODATA);
+}
+
+static void virtio_gpu_process_fenceq(VirtIOGPU *g)
+{
+ struct virtio_gpu_ctrl_command *cmd, *tmp;
+
+ QTAILQ_FOREACH_SAFE(cmd, &g->fenceq, next, tmp) {
+ trace_virtio_gpu_fence_resp(cmd->cmd_hdr.fence_id);
+ virtio_gpu_signal_fence(g, cmd, VIRTIO_GPU_RESP_OK_NODATA);
+ QTAILQ_REMOVE(&g->fenceq, cmd, next);
+ g_free(cmd);
+ g->inflight--;
+ if (virtio_gpu_stats_enabled(g->parent_obj.conf)) {
+ fprintf(stderr, "inflight: %3d (-)\r", g->inflight);
+ }
+ }
+}
+
+static void virtio_gpu_handle_gl_flushed(VirtIOGPUBase *b)
+{
+ VirtIOGPU *g = container_of(b, VirtIOGPU, parent_obj);
+
+ virtio_gpu_process_fenceq(g);
+}
+
static void virtio_gpu_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
{
VirtIOGPU *g = VIRTIO_GPU(vdev);
@@ -1398,10 +1438,12 @@ static void virtio_gpu_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
VirtIOGPUClass *vgc = VIRTIO_GPU_CLASS(klass);
+ VirtIOGPUBaseClass *vgbc = &vgc->parent;
vgc->handle_ctrl = virtio_gpu_handle_ctrl;
vgc->process_cmd = virtio_gpu_simple_process_cmd;
vgc->update_cursor_data = virtio_gpu_update_cursor_data;
+ vgbc->gl_flushed = virtio_gpu_handle_gl_flushed;
vdc->realize = virtio_gpu_device_realize;
vdc->reset = virtio_gpu_reset;
--
2.30.2
next prev parent reply other threads:[~2021-06-10 23:04 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 22:48 [PATCH v2 0/8] virtio-gpu: Add a default synchronization mechanism for blobs Vivek Kasireddy
2021-06-10 22:48 ` [PATCH v2 1/8] ui/gtk: Create a common release_dmabuf helper Vivek Kasireddy
2021-06-10 22:48 ` [PATCH v2 2/8] ui/egl: Add egl helpers to help with synchronization Vivek Kasireddy
2021-06-15 5:31 ` Gerd Hoffmann
2021-06-15 23:11 ` Kasireddy, Vivek
2021-06-10 22:48 ` [PATCH v2 3/8] ui: Add a helper to wait on a dmabuf sync object Vivek Kasireddy
2021-06-10 22:48 ` [PATCH v2 4/8] ui/gtk: Implement wait_dmabuf function Vivek Kasireddy
2021-06-10 22:48 ` [PATCH v2 5/8] ui: Create sync objects only for blobs Vivek Kasireddy
2021-06-10 22:48 ` [PATCH v2 6/8] ui/gtk-egl: Wait for the draw signal for dmabuf blobs Vivek Kasireddy
2021-06-10 22:48 ` [PATCH v2 7/8] virtio-gpu: Add dmabuf helpers for synchronization Vivek Kasireddy
2021-06-10 22:48 ` Vivek Kasireddy [this message]
2021-06-15 5:50 ` [PATCH v2 8/8] virtio-gpu: Add gl_flushed callback Gerd Hoffmann
2021-06-15 23:34 ` Kasireddy, Vivek
2021-06-14 22:48 ` [PATCH v2 0/8] virtio-gpu: Add a default synchronization mechanism for blobs no-reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210610224837.670192-9-vivek.kasireddy@intel.com \
--to=vivek.kasireddy@intel.com \
--cc=kraxel@redhat.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).