kernel/drivers/gpu/drm/virtio/virtgpu_vq.c, branch linux-4.16.y

drm/virtio: fix vq wait_event condition

2018-05-01T19:47:21Z

commit d02d270014f70dcab0117776b81a37b6fca745ae upstream. Wait until we have enough space in the virt queue to actually queue up our request. Avoids the guest spinning in case we have a non-zero amount of free entries but not enough for the request. Cc: stable@vger.kernel.org Reported-by: Alain Magloire Signed-off-by: Gerd Hoffmann Reviewed-by: Dave Airlie Link: http://patchwork.freedesktop.org/patch/msgid/20180403095904.11152-1-kraxel@redhat.com Signed-off-by: Sean Paul Signed-off-by: Greg Kroah-Hartman

drm: virtio: fix kmem_cache_alloc error check

2017-03-14T10:54:19Z

kmem_cache_alloc returns NULL on error, not ERR_PTR. Fixes: f5985bf9cadd4e3ed8d5d9a9cbbb2e39cdb81cd9 Reported-by: Jiri Slaby Signed-off-by: Gerd Hoffmann Reviewed-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1489393346-13874-1-git-send-email-kraxel@redhat.com

drm: virtio: use kmem_cache

2017-03-07T06:09:18Z

Just use kmem_cache instead of rolling our own, limited implementation. Signed-off-by: Gerd Hoffmann Reviewed-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1488377348-5006-1-git-send-email-kraxel@redhat.com

drm/virtio: annotate virtio_gpu_queue_ctrl_buffer_locked

2016-12-15T04:59:17Z

virtio_gpu_queue_ctrl_buffer_locked is called with ctrlq.qlock taken, it releases and acquires this lock. This causes a sparse warning. Add appropriate annotations for sparse context checking. Signed-off-by: Michael S. Tsirkin

drm/virtio: fix lock context imbalance

2016-12-15T04:59:16Z

When virtio_gpu_free_vbufs exits due to list empty, it does not drop the free_vbufs lock that it took. list empty is not expected to happen anyway, but it can't hurt to fix this and drop the lock. Signed-off-by: Michael S. Tsirkin

drm/virtio: allocate some extra bufs

2016-11-15T08:46:48Z

virtio-gpu guest driver appearently can run out of buffers. allocate some extra buffers, as quick stopgap for 4.9. analyzing root cause and fixing it properly is TBD. Reported-by: Jiri Slaby Tested-by: Jiri Slaby Signed-off-by: Gerd Hoffmann

virtio-gpu: add 3d/virgl support

2015-10-16T08:44:02Z

Add the bits needed for opengl rendering support: query capabilities, new virtio commands, drm ioctls. Signed-off-by: Dave Airlie Signed-off-by: Gerd Hoffmann

virtio-gpu: add & use virtio_gpu_queue_fenced_ctrl_buffer

2015-10-16T08:44:00Z

Add helper function to handle the submission of fenced control requests. Make sure we initialize the fence while holding the virtqueue lock, so requests can't be reordered. Signed-off-by: Gerd Hoffmann

virtio-gpu: add virtio_gpu_queue_ctrl_buffer_locked

2015-10-16T08:43:59Z

Add virtio_gpu_queue_ctrl_buffer_locked function, which does the same as virtio_gpu_queue_ctrl_buffer but does not take the virtqueue lock. The caller must hold the lock instead. Signed-off-by: Gerd Hoffmann

virtio-gpu: add locking for vbuf pool

2015-06-16T09:22:41Z

Signed-off-by: Dave Airlie Signed-off-by: Gerd Hoffmann