From 65b847d284c1ab8a1dbd44d2b046e87e83ebb6e0 Mon Sep 17 00:00:00 2001 From: Vivek Kasireddy Date: Tue, 14 Sep 2021 14:18:35 -0700 Subject: [PATCH] ui: Create sync objects and fences only for blobs 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 Signed-off-by: Vivek Kasireddy Message-Id: <20210914211837.3229977-4-vivek.kasireddy@intel.com> Signed-off-by: Gerd Hoffmann --- 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 | 25 +++++++++++++++++++++++++ ui/gtk-gl-area.c | 26 ++++++++++++++++++++++++++ ui/gtk.c | 13 +++++++++++++ 7 files changed, 68 insertions(+) diff --git a/hw/display/virtio-gpu-udmabuf.c b/hw/display/virtio-gpu-udmabuf.c index 3c01a415e7..c6f7f58784 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.allow_fences = 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 45ec129174..244664d727 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 allow_fences; } 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 8e98a79ac8..43854f3509 100644 --- a/include/ui/gtk.h +++ b/include/ui/gtk.h @@ -155,6 +155,7 @@ 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..3a90aeb2b9 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" @@ -94,6 +95,18 @@ void gd_egl_draw(VirtualConsole *vc) } glFlush(); +#ifdef CONFIG_GBM + if (vc->gfx.guest_fb.dmabuf) { + QemuDmaBuf *dmabuf = vc->gfx.guest_fb.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); + } +#endif graphic_hw_gl_flushed(vc->gfx.dcl.con); } @@ -209,6 +222,8 @@ 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 +232,10 @@ 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->allow_fences) { + vc->gfx.guest_fb.dmabuf = dmabuf; + } #endif } @@ -281,6 +300,12 @@ void gd_egl_scanout_flush(DisplayChangeListener *dcl, egl_fb_blit(&vc->gfx.win_fb, &vc->gfx.guest_fb, !vc->gfx.y0_top); } +#ifdef CONFIG_GBM + if (vc->gfx.guest_fb.dmabuf) { + egl_dmabuf_create_sync(vc->gfx.guest_fb.dmabuf); + } +#endif + eglSwapBuffers(qemu_egl_display, vc->gfx.esurface); } diff --git a/ui/gtk-gl-area.c b/ui/gtk-gl-area.c index dd5783fec7..b23523748e 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" @@ -71,7 +72,25 @@ void gd_gl_area_draw(VirtualConsole *vc) surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds); } +#ifdef CONFIG_GBM + if (vc->gfx.guest_fb.dmabuf) { + egl_dmabuf_create_sync(vc->gfx.guest_fb.dmabuf); + } +#endif + glFlush(); +#ifdef CONFIG_GBM + if (vc->gfx.guest_fb.dmabuf) { + QemuDmaBuf *dmabuf = vc->gfx.guest_fb.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); + } +#endif graphic_hw_gl_flushed(vc->gfx.dcl.con); } @@ -213,6 +232,9 @@ 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 +253,10 @@ 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->allow_fences) { + vc->gfx.guest_fb.dmabuf = dmabuf; + } #endif } diff --git a/ui/gtk.c b/ui/gtk.c index 784a2f6c74..5105c0a33f 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 = {