From: Thomas Zimmermann <tzimmermann@suse.de>
To: simona@ffwll.ch, airlied@gmail.com, mdaenzer@redhat.com,
pekka.paalanen@collabora.com, jadahl@gmail.com,
contact@emersion.fr, maarten.lankhorst@linux.intel.com,
mripard@kernel.org
Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-hyperv@vger.kernel.org, virtualization@lists.linux.dev,
spice-devel@lists.freedesktop.org,
Thomas Zimmermann <tzimmermann@suse.de>
Subject: [PATCH 8/9] drm/virtgpu: Set DRM_VBLANK_FLAG_SIMULATED
Date: Fri, 15 May 2026 13:55:13 +0200 [thread overview]
Message-ID: <20260515120916.333614-9-tzimmermann@suse.de> (raw)
In-Reply-To: <20260515120916.333614-1-tzimmermann@suse.de>
Mark the vblank event on virtgpu as simulated, so that the WAIT_VBLANK
ioctl fails with an error. The ioctl should not be supported because
the output is not synchronized to a display refresh.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/virtio/virtgpu_display.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c
index 44ffffec550f..558d8001c54f 100644
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -381,7 +381,7 @@ int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
for (i = 0 ; i < vgdev->num_scanouts; ++i)
vgdev_output_init(vgdev, i);
- ret = drm_vblank_init(vgdev->ddev, vgdev->num_scanouts);
+ ret = drmm_vblank_init(vgdev->ddev, vgdev->num_scanouts, DRM_VBLANK_FLAG_SIMULATED);
if (ret)
return ret;
--
2.54.0
next prev parent reply other threads:[~2026-05-15 12:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-15 11:55 [PATCH 0/9] drm: Limit DRM_IOCTL_WAIT_VBLANK to vblank interrupts Thomas Zimmermann
2026-05-15 11:55 ` [PATCH 1/9] drm/vblank: Add drmm_vblank_init() to indicate managed cleanup Thomas Zimmermann
2026-05-15 11:55 ` [PATCH 2/9] drm/vblank: Add DRM_VBLANK_FLAG_SIMULATED Thomas Zimmermann
2026-05-15 11:55 ` [PATCH 3/9] drm/amdgpu: vkms: Set DRM_VBLANK_FLAG_SIMULATED Thomas Zimmermann
2026-05-15 11:55 ` [PATCH 4/9] drm/bochs: " Thomas Zimmermann
2026-05-15 11:55 ` [PATCH 5/9] drm/cirrus: " Thomas Zimmermann
2026-05-15 11:55 ` [PATCH 6/9] drm/hypervdrm: " Thomas Zimmermann
2026-05-15 11:55 ` [PATCH 7/9] drm/qxl: " Thomas Zimmermann
2026-05-15 11:55 ` Thomas Zimmermann [this message]
2026-05-15 11:55 ` [PATCH 9/9] drm/vkms: " Thomas Zimmermann
2026-05-15 15:12 ` [PATCH 0/9] drm: Limit DRM_IOCTL_WAIT_VBLANK to vblank interrupts Michel Dänzer
2026-05-15 16:56 ` Michel Dänzer
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