Re: [Qemu-devel] [PATCH 6/6] virtio-gpu: block any rendering until client (ui) is done

2016-01-13 Thread Marc-André Lureau
Hi

On Wed, Jan 13, 2016 at 1:02 PM, Gerd Hoffmann  wrote:
> Wire up gl_block callback, so ui code can request to stop
> virtio-gpu rendering.
>
> Signed-off-by: Gerd Hoffmann 
> ---
>  hw/display/virtio-gpu-3d.c |  5 +
>  hw/display/virtio-gpu.c|  8 
>  hw/display/virtio-vga.c| 10 ++
>  include/hw/virtio/virtio-gpu.h |  1 +
>  4 files changed, 24 insertions(+)
>
> diff --git a/hw/display/virtio-gpu-3d.c b/hw/display/virtio-gpu-3d.c
> index 65926b1..321a959 100644
> --- a/hw/display/virtio-gpu-3d.c
> +++ b/hw/display/virtio-gpu-3d.c
> @@ -382,6 +382,11 @@ void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
>  {
>  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:
> diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
> index 9087e63..09936c9 100644
> --- a/hw/display/virtio-gpu.c
> +++ b/hw/display/virtio-gpu.c
> @@ -893,11 +893,19 @@ static int virtio_gpu_ui_info(void *opaque, uint32_t 
> idx, QemuUIInfo *info)
>  return 0;
>  }
>
> +static void virtio_gpu_gl_block(void *opaque, bool block)
> +{
> +VirtIOGPU *g = opaque;
> +
> +g->renderer_blocked = block;
> +}

Why not add here?:

+if (!block) {
+virtio_cpu_process_cmdq(g);
+}


> +
>  const GraphicHwOps virtio_gpu_ops = {
>  .invalidate = virtio_gpu_invalidate_display,
>  .gfx_update = virtio_gpu_update_display,
>  .text_update = virtio_gpu_text_update,
>  .ui_info = virtio_gpu_ui_info,
> +.gl_block = virtio_gpu_gl_block,
>  };
>
>  static void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
> diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c
> index f7e539f..255d419 100644
> --- a/hw/display/virtio-vga.c
> +++ b/hw/display/virtio-vga.c
> @@ -65,11 +65,21 @@ static int virtio_vga_ui_info(void *opaque, uint32_t idx, 
> QemuUIInfo *info)
>  return -1;
>  }
>
> +static void virtio_vga_gl_block(void *opaque, bool block)
> +{
> +VirtIOVGA *vvga = opaque;
> +
> +if (virtio_gpu_ops.gl_block) {
> +virtio_gpu_ops.gl_block(&vvga->vdev, block);
> +}
> +}
> +
>  static const GraphicHwOps virtio_vga_ops = {
>  .invalidate = virtio_vga_invalidate_display,
>  .gfx_update = virtio_vga_update_display,
>  .text_update = virtio_vga_text_update,
>  .ui_info = virtio_vga_ui_info,
> +.gl_block = virtio_vga_gl_block,
>  };
>
>  /* VGA device wrapper around PCI device around virtio GPU */
> diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
> index fdf0091..7249fcd 100644
> --- a/include/hw/virtio/virtio-gpu.h
> +++ b/include/hw/virtio/virtio-gpu.h
> @@ -107,6 +107,7 @@ typedef struct VirtIOGPU {
>
>  bool use_virgl_renderer;
>  bool renderer_inited;
> +bool renderer_blocked;
>  QEMUTimer *fence_poll;
>  QEMUTimer *print_stats;
>
> --
> 1.8.3.1
>



-- 
Marc-André Lureau



[Qemu-devel] [PATCH 6/6] virtio-gpu: block any rendering until client (ui) is done

2016-01-13 Thread Gerd Hoffmann
Wire up gl_block callback, so ui code can request to stop
virtio-gpu rendering.

Signed-off-by: Gerd Hoffmann 
---
 hw/display/virtio-gpu-3d.c |  5 +
 hw/display/virtio-gpu.c|  8 
 hw/display/virtio-vga.c| 10 ++
 include/hw/virtio/virtio-gpu.h |  1 +
 4 files changed, 24 insertions(+)

diff --git a/hw/display/virtio-gpu-3d.c b/hw/display/virtio-gpu-3d.c
index 65926b1..321a959 100644
--- a/hw/display/virtio-gpu-3d.c
+++ b/hw/display/virtio-gpu-3d.c
@@ -382,6 +382,11 @@ void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
 {
 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:
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index 9087e63..09936c9 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -893,11 +893,19 @@ static int virtio_gpu_ui_info(void *opaque, uint32_t idx, 
QemuUIInfo *info)
 return 0;
 }
 
+static void virtio_gpu_gl_block(void *opaque, bool block)
+{
+VirtIOGPU *g = opaque;
+
+g->renderer_blocked = block;
+}
+
 const GraphicHwOps virtio_gpu_ops = {
 .invalidate = virtio_gpu_invalidate_display,
 .gfx_update = virtio_gpu_update_display,
 .text_update = virtio_gpu_text_update,
 .ui_info = virtio_gpu_ui_info,
+.gl_block = virtio_gpu_gl_block,
 };
 
 static void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c
index f7e539f..255d419 100644
--- a/hw/display/virtio-vga.c
+++ b/hw/display/virtio-vga.c
@@ -65,11 +65,21 @@ static int virtio_vga_ui_info(void *opaque, uint32_t idx, 
QemuUIInfo *info)
 return -1;
 }
 
+static void virtio_vga_gl_block(void *opaque, bool block)
+{
+VirtIOVGA *vvga = opaque;
+
+if (virtio_gpu_ops.gl_block) {
+virtio_gpu_ops.gl_block(&vvga->vdev, block);
+}
+}
+
 static const GraphicHwOps virtio_vga_ops = {
 .invalidate = virtio_vga_invalidate_display,
 .gfx_update = virtio_vga_update_display,
 .text_update = virtio_vga_text_update,
 .ui_info = virtio_vga_ui_info,
+.gl_block = virtio_vga_gl_block,
 };
 
 /* VGA device wrapper around PCI device around virtio GPU */
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index fdf0091..7249fcd 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -107,6 +107,7 @@ typedef struct VirtIOGPU {
 
 bool use_virgl_renderer;
 bool renderer_inited;
+bool renderer_blocked;
 QEMUTimer *fence_poll;
 QEMUTimer *print_stats;
 
-- 
1.8.3.1