Create sync objects and fences only for dmabufs that are blobs. Once a
fence is created (after glFlush) and is signalled,
graphic_hw_gl_flushed() will be called and virtio-gpu cmd processing
will be resumed.
Cc: Gerd Hoffmann <kra...@redhat.com>
Signed-off-by: Vivek Kasireddy <vivek.kasire...@intel.com>
---
hw/display/virtio-gpu-udmabuf.c | 1 +
include/ui/console.h | 1 +
include/ui/egl-helpers.h | 1 +
include/ui/gtk.h | 1 +
ui/gtk-egl.c | 20 ++++++++++++++++++++
ui/gtk-gl-area.c | 20 ++++++++++++++++++++
ui/gtk.c | 13 +++++++++++++
7 files changed, 57 insertions(+)
diff --git a/hw/display/virtio-gpu-udmabuf.c b/hw/display/virtio-gpu-udmabuf.c
index 3c01a415e7..632ba06cbc 100644
--- a/hw/display/virtio-gpu-udmabuf.c
+++ b/hw/display/virtio-gpu-udmabuf.c
@@ -185,6 +185,7 @@ static VGPUDMABuf
dmabuf->buf.stride = fb->stride;
dmabuf->buf.fourcc = qemu_pixman_to_drm_format(fb->format);
dmabuf->buf.fd = res->dmabuf_fd;
+ dmabuf->buf.blob = true;
dmabuf->scanout_id = scanout_id;
QTAILQ_INSERT_HEAD(&g->dmabuf.bufs, dmabuf, next);
diff --git a/include/ui/console.h b/include/ui/console.h
index 49978fdae3..570d827644 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -170,6 +170,7 @@ typedef struct QemuDmaBuf {
bool y0_top;
void *sync;
int fence_fd;
+ bool blob;
} QemuDmaBuf;
typedef struct DisplayState DisplayState;
diff --git a/include/ui/egl-helpers.h b/include/ui/egl-helpers.h
index 2c3ba92b53..2fb6e0dd6b 100644
--- a/include/ui/egl-helpers.h
+++ b/include/ui/egl-helpers.h
@@ -19,6 +19,7 @@ typedef struct egl_fb {
GLuint texture;
GLuint framebuffer;
bool delete_texture;
+ QemuDmaBuf *dmabuf;
} egl_fb;
void egl_fb_destroy(egl_fb *fb);
diff --git a/include/ui/gtk.h b/include/ui/gtk.h
index e6cbf0507c..3e6a48b978 100644
--- a/include/ui/gtk.h
+++ b/include/ui/gtk.h
@@ -152,6 +152,7 @@ extern bool gtk_use_gl_area;
/* ui/gtk.c */
void gd_update_windowsize(VirtualConsole *vc);
int gd_monitor_update_interval(GtkWidget *widget);
+void gd_hw_gl_flushed(void *vc);
/* ui/gtk-egl.c */
void gd_egl_init(VirtualConsole *vc);
diff --git a/ui/gtk-egl.c b/ui/gtk-egl.c
index b671181272..f530bcd940 100644
--- a/ui/gtk-egl.c
+++ b/ui/gtk-egl.c
@@ -12,6 +12,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/main-loop.h"
#include "trace.h"
@@ -63,6 +64,7 @@ void gd_egl_draw(VirtualConsole *vc)
{
GdkWindow *window;
int ww, wh;
+ QemuDmaBuf *dmabuf = vc->gfx.guest_fb.dmabuf;
if (!vc->gfx.gls) {
return;
@@ -94,6 +96,14 @@ void gd_egl_draw(VirtualConsole *vc)
}
glFlush();
+ if (dmabuf) {
+ egl_dmabuf_create_fence(dmabuf);
+ if (dmabuf->fence_fd > 0) {
+ qemu_set_fd_handler(dmabuf->fence_fd, gd_hw_gl_flushed, NULL, vc);
+ return;
+ }
+ graphic_hw_gl_block(vc->gfx.dcl.con, false);
+ }
graphic_hw_gl_flushed(vc->gfx.dcl.con);
}
@@ -209,6 +219,8 @@ void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf)
{
#ifdef CONFIG_GBM
+ VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
+
egl_dmabuf_import_texture(dmabuf);
if (!dmabuf->texture) {
return;
@@ -217,6 +229,10 @@ void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl,
gd_egl_scanout_texture(dcl, dmabuf->texture,
false, dmabuf->width, dmabuf->height,
0, 0, dmabuf->width, dmabuf->height);
+
+ if (dmabuf->blob) {
+ vc->gfx.guest_fb.dmabuf = dmabuf;
+ }
#endif
}
@@ -281,6 +297,10 @@ void gd_egl_scanout_flush(DisplayChangeListener *dcl,
egl_fb_blit(&vc->gfx.win_fb, &vc->gfx.guest_fb, !vc->gfx.y0_top);
}
+ if (vc->gfx.guest_fb.dmabuf) {
+ egl_dmabuf_create_sync(vc->gfx.guest_fb.dmabuf);
+ }
+
eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
}
diff --git a/ui/gtk-gl-area.c b/ui/gtk-gl-area.c
index dd5783fec7..091194789e 100644
--- a/ui/gtk-gl-area.c
+++ b/ui/gtk-gl-area.c
@@ -8,6 +8,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/main-loop.h"
#include "trace.h"
@@ -38,6 +39,7 @@ static void gtk_gl_area_set_scanout_mode(VirtualConsole *vc,
bool scanout)
void gd_gl_area_draw(VirtualConsole *vc)
{
int ww, wh, y1, y2;
+ QemuDmaBuf *dmabuf = vc->gfx.guest_fb.dmabuf;
if (!vc->gfx.gls) {
return;
@@ -71,7 +73,18 @@ void gd_gl_area_draw(VirtualConsole *vc)
surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds);
}
+ if (dmabuf) {
+ egl_dmabuf_create_sync(dmabuf);
+ }
glFlush();
+ if (dmabuf) {
+ egl_dmabuf_create_fence(dmabuf);
+ if (dmabuf->fence_fd > 0) {
+ qemu_set_fd_handler(dmabuf->fence_fd, gd_hw_gl_flushed, NULL, vc);
+ return;
+ }
+ graphic_hw_gl_block(vc->gfx.dcl.con, false);
+ }
graphic_hw_gl_flushed(vc->gfx.dcl.con);
}
@@ -213,6 +226,9 @@ void gd_gl_area_scanout_flush(DisplayChangeListener *dcl,
{
VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
+ if (vc->gfx.guest_fb.dmabuf) {
+ graphic_hw_gl_block(vc->gfx.dcl.con, true);
+ }
gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area));
}
@@ -231,6 +247,10 @@ void gd_gl_area_scanout_dmabuf(DisplayChangeListener *dcl,
gd_gl_area_scanout_texture(dcl, dmabuf->texture,
false, dmabuf->width, dmabuf->height,
0, 0, dmabuf->width, dmabuf->height);
+
+ if (dmabuf->blob) {
+ vc->gfx.guest_fb.dmabuf = dmabuf;
+ }
#endif
}
diff --git a/ui/gtk.c b/ui/gtk.c
index 6132bab52f..ee3a084c21 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -36,6 +36,7 @@
#include "qapi/qapi-commands-machine.h"
#include "qapi/qapi-commands-misc.h"
#include "qemu/cutils.h"
+#include "qemu/main-loop.h"
#include "ui/console.h"
#include "ui/gtk.h"
@@ -583,6 +584,18 @@ static void gd_gl_release_dmabuf(DisplayChangeListener
*dcl,
#endif
}
+void gd_hw_gl_flushed(void *vcon)
+{
+ VirtualConsole *vc = vcon;
+ QemuDmaBuf *dmabuf = vc->gfx.guest_fb.dmabuf;
+
+ graphic_hw_gl_block(vc->gfx.dcl.con, false);
+ graphic_hw_gl_flushed(vc->gfx.dcl.con);
+ qemu_set_fd_handler(dmabuf->fence_fd, NULL, NULL, NULL);
+ close(dmabuf->fence_fd);
+ dmabuf->fence_fd = -1;
+}
+
/** DisplayState Callbacks (opengl version) **/
static const DisplayChangeListenerOps dcl_gl_area_ops = {
--
2.30.2
