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authorMarc-André Lureau <marcandre.lureau@redhat.com>2021-03-11 12:11:37 +0400
committerMarc-André Lureau <marcandre.lureau@redhat.com>2021-12-21 10:50:21 +0400
commitf6413cbfd0b3a3f85ebaf9fe13494af1dad916bb (patch)
tree89ce165cccf3618b10703f2b01c20047ea63b17f /hw
parenta9b1e471e1783a1d7ae9215f9b8adc7cdb053367 (diff)
ui: simplify gl unblock & flush
GraphicHw.gl_flushed was introduced to notify the device (vhost-user-gpu) that the GL resources (the display scanout) are no longer needed. It was decoupled from QEMU own gl-blocking mechanism, but that difference isn't helping. Instead, we can reuse QEMU gl-blocking and notify virtio_gpu_gl_flushed() when unblocking (to unlock vhost-user-gpu). An extra block/unblock is added arount dpy_gl_update() so existing backends that don't block will have the flush event handled. It will also help when there are no backends associated. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/display/vhost-user-gpu.c2
-rw-r--r--hw/display/virtio-gpu-base.c5
-rw-r--r--hw/display/virtio-vga.c11
3 files changed, 5 insertions, 13 deletions
diff --git a/hw/display/vhost-user-gpu.c b/hw/display/vhost-user-gpu.c
index 49df56cd14..09818231bd 100644
--- a/hw/display/vhost-user-gpu.c
+++ b/hw/display/vhost-user-gpu.c
@@ -254,8 +254,8 @@ vhost_user_gpu_handle_display(VhostUserGPU *g, VhostUserGpuMsg *msg)
vhost_user_gpu_unblock(g);
break;
}
- dpy_gl_update(con, m->x, m->y, m->width, m->height);
g->backend_blocked = true;
+ dpy_gl_update(con, m->x, m->y, m->width, m->height);
break;
}
case VHOST_USER_GPU_UPDATE: {
diff --git a/hw/display/virtio-gpu-base.c b/hw/display/virtio-gpu-base.c
index c8da4806e0..fff0fb4a82 100644
--- a/hw/display/virtio-gpu-base.c
+++ b/hw/display/virtio-gpu-base.c
@@ -117,6 +117,10 @@ virtio_gpu_gl_block(void *opaque, bool block)
g->renderer_blocked--;
}
assert(g->renderer_blocked >= 0);
+
+ if (!block && g->renderer_blocked == 0) {
+ virtio_gpu_gl_flushed(g);
+ }
}
static int
@@ -143,7 +147,6 @@ static const GraphicHwOps virtio_gpu_ops = {
.text_update = virtio_gpu_text_update,
.ui_info = virtio_gpu_ui_info,
.gl_block = virtio_gpu_gl_block,
- .gl_flushed = virtio_gpu_gl_flushed,
};
bool
diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c
index 9e57f61e9e..b23a75a04b 100644
--- a/hw/display/virtio-vga.c
+++ b/hw/display/virtio-vga.c
@@ -68,16 +68,6 @@ static void virtio_vga_base_gl_block(void *opaque, bool block)
}
}
-static void virtio_vga_base_gl_flushed(void *opaque)
-{
- VirtIOVGABase *vvga = opaque;
- VirtIOGPUBase *g = vvga->vgpu;
-
- if (g->hw_ops->gl_flushed) {
- g->hw_ops->gl_flushed(g);
- }
-}
-
static int virtio_vga_base_get_flags(void *opaque)
{
VirtIOVGABase *vvga = opaque;
@@ -93,7 +83,6 @@ static const GraphicHwOps virtio_vga_base_ops = {
.text_update = virtio_vga_base_text_update,
.ui_info = virtio_vga_base_ui_info,
.gl_block = virtio_vga_base_gl_block,
- .gl_flushed = virtio_vga_base_gl_flushed,
};
static const VMStateDescription vmstate_virtio_vga_base = {