kernel.git/drivers/gpu/drm/virtio/virtgpu_vq.c, branch linux-6.14.y

drm/virtio: Set missing bo->attached flag

2025-04-20T08:22:36Z

[ Upstream commit ffda6454267d0b870f3a09945a7ce88137b914a6 ] VirtIO-GPU driver now supports detachment of shmem BOs from host, but doing it only for imported dma-bufs. Mark all shmem BOs as attached, not just dma-bufs. This is a minor correction since detachment of a non-dmabuf BOs not supported today. Signed-off-by: Dmitry Osipenko Acked-by: Vivek Kasireddy Link: https://patchwork.freedesktop.org/patch/msgid/20241129155357.2265357-1-dmitry.osipenko@collabora.com Signed-off-by: Sasha Levin

drm/virtio: Implement VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING cmd

2024-11-26T09:52:18Z

This cmd is useful to let the VMM (i.e, Qemu) know that the backing store associated with a resource is no longer valid, so that the VMM can perform any cleanup or unmap operations. The fence related changes and virtio_gpu_object_detach()/ virtio_gpu_detach_object_fenced() routines are extracted from a patch by Dmitry Osipenko . Cc: Gerd Hoffmann Cc: Dmitry Osipenko Cc: Rob Clark Cc: Gurchetan Singh Cc: Chia-I Wu Signed-off-by: Vivek Kasireddy Tested-by: Dmitry Osipenko Reviewed-by: Dmitry Osipenko Signed-off-by: Dmitry Osipenko Link: https://patchwork.freedesktop.org/patch/msgid/20241126031643.3490496-2-vivek.kasireddy@intel.com

drm/virtio: switch to struct drm_edid

2024-05-13T17:12:46Z

Prefer struct drm_edid based functions over struct edid. Signed-off-by: Jani Nikula Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/ed6e76a9e94816789ca9caf8775d6a6156877496.1715347488.git.jani.nikula@intel.com

Merge v6.3-rc4 into drm-next

2023-03-29T14:00:23Z

I just landed the fence deadline PR from Rob that a bunch of drivers want/need to apply driver-specific patches. Backmerge -rc4 so that they don't have to be stuck on -rc2 for no reason at all. Signed-off-by: Daniel Vetter

Merge drm/drm-fixes into drm-misc-fixes

2023-03-13T09:14:05Z

Backmerging to get latest upstream. Signed-off-by: Thomas Zimmermann

drm/virtio: use strscpy() to instead of strncpy()

2023-02-26T23:58:50Z

The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL terminated strings. Signed-off-by: Xu Panda Signed-off-by: Yang Yang Signed-off-by: Dmitry Osipenko Link: https://patchwork.freedesktop.org/patch/msgid/202212070913161959936@zte.com.cn

drm/virtio: Pass correct device to dma_sync_sgtable_for_device()

2023-02-26T23:39:24Z

The "vdev->dev.parent" should be used instead of "vdev->dev" as a device for which to perform the DMA operation in both virtio_gpu_cmd_transfer_to_host_2d(3d). Because the virtio-gpu device "vdev->dev" doesn't really have DMA OPS assigned to it, but parent (virtio-pci or virtio-mmio) device "vdev->dev.parent" has. The more, the sgtable in question the code is trying to sync here was mapped for the parent device (by using its DMA OPS) previously at: virtio_gpu_object_shmem_init()->drm_gem_shmem_get_pages_sgt()-> dma_map_sgtable(), so should be synced here for the same parent device. Fixes: b5c9ed70d1a9 ("drm/virtio: Improve DMA API usage for shmem BOs") Signed-off-by: Oleksandr Tyshchenko Reviewed-by: Dmitry Osipenko Signed-off-by: Dmitry Osipenko Link: https://patchwork.freedesktop.org/patch/msgid/20230224153450.526222-1-olekstysh@gmail.com

drm/virtio: Spiff out cmd queue/response traces

2023-01-02T14:51:27Z

Add a sequence # for more easily matching up cmd/resp, and the # of free slots in the virtqueue to more easily see starvation issues. v2: Fix handling of string fields as well Signed-off-by: Rob Clark Reviewed-by: Dmitry Osipenko Signed-off-by: Dmitry Osipenko Link: https://patchwork.freedesktop.org/patch/msgid/20221130000841.318037-1-robdclark@gmail.com

drm/virtio: Return proper error codes instead of -1

2022-07-19T12:40:58Z

Don't return -1 in error cases, return proper error code. The returned error codes propagate to error messages and to userspace and it's always good to have a meaningful error number for debugging purposes. Signed-off-by: Dmitry Osipenko Link: http://patchwork.freedesktop.org/patch/msgid/20220630200726.1884320-10-dmitry.osipenko@collabora.com Signed-off-by: Gerd Hoffmann

drm/virtio: Improve DMA API usage for shmem BOs

2022-07-19T12:40:58Z

DRM API requires the DRM's driver to be backed with the device that can be used for generic DMA operations. The VirtIO-GPU device can't perform DMA operations if it uses PCI transport because PCI device driver creates a virtual VirtIO-GPU device that isn't associated with the PCI. Use PCI's GPU device for the DRM's device instead of the VirtIO-GPU device and drop DMA-related hacks from the VirtIO-GPU driver. Signed-off-by: Dmitry Osipenko Link: http://patchwork.freedesktop.org/patch/msgid/20220630200726.1884320-8-dmitry.osipenko@collabora.com Signed-off-by: Gerd Hoffmann