linux/drivers/gpu/drm/vgem, branch v5.3

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46Z

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

drm/vgem: fix use-after-free when drm_gem_handle_create() fails

2019-03-18T07:45:57Z

If drm_gem_handle_create() fails in vgem_gem_create(), then the drm_vgem_gem_object is freed twice: once when the reference is dropped by drm_gem_object_put_unlocked(), and again by __vgem_gem_destroy(). This was hit by syzkaller using fault injection. Fix it by skipping the second free. Reported-by: syzbot+e73f2fb5ed5a5df36d33@syzkaller.appspotmail.com Fixes: af33a9190d02 ("drm/vgem: Enable dmabuf import interfaces") Reviewed-by: Chris Wilson Cc: Laura Abbott Cc: Daniel Vetter Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers Acked-by: Laura Abbott Signed-off-by: Rodrigo Siqueira Link: https://patchwork.freedesktop.org/patch/msgid/20190226214451.195123-1-ebiggers@kernel.org Signed-off-by: Maxime Ripard

dma-buf: make fence sequence numbers 64 bit v2

2018-12-07T11:44:16Z

For a lot of use cases we need 64bit sequence numbers. Currently drivers overload the dma_fence structure to store the additional bits. Stop doing that and make the sequence number in the dma_fence always 64bit. For compatibility with hardware which can do only 32bit sequences the comparisons in __dma_fence_is_later only takes the lower 32bits as significant when the upper 32bits are all zero. v2: change the logic in __dma_fence_is_later Signed-off-by: Christian König Reviewed-by: Chunming Zhou Link: https://patchwork.freedesktop.org/patch/266927/

drm/vgem: Fix typo in driver feature flags

2018-11-05T15:31:51Z

Fix typo in struct field initializer. Fixes: 3a6eb795641c ("drm/vgem: create a render node for vgem") Cc: Emil Velikov Cc: David Airlie Cc: Daniel Vetter Cc: dri-devel@lists.freedesktop.org Signed-off-by: Imre Deak Reviewed-by: Emil Velikov Signed-off-by: Emil Velikov Link: https://patchwork.freedesktop.org/patch/msgid/20181105145428.5590-1-imre.deak@intel.com

drm/vgem: create a render node for vgem

2018-11-05T13:06:30Z

VGEM doesn't do anything modeset specific, so in a way exposing a primary node is 'wrong'. At the same time, we extensively use if for creating dumb buffers, fences, prime fd <> handle imports/exports. To the point that we explicitly annotate the vgem fence ioctls as DRM_RENDER_ALLOW and have an IGT test which opens the render node. close(drm_open_driver_render(DRIVER_VGEM)) Better late than never, let's flip the switch. Cc: David Airlie Cc: Daniel Vetter Signed-off-by: Emil Velikov Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20181026120647.7528-1-emil.l.velikov@gmail.com

drm/vgem: Fix vgem_init to get drm device available.

2018-10-25T12:25:58Z

Modify vgem_init to take platform dev as parent in drm_dev_init. This will make drm device available at "/sys/devices/platform/vgem" in x86 chromebook. v2: rebase, address checkpatch typo and line over 80 characters Cc: Daniel Vetter Signed-off-by: Deepak Sharma Reviewed-by: Sean Paul Signed-off-by: Emil Velikov Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20181023163550.15211-1-emil.l.velikov@gmail.com

dma-buf: allow reserving more than one shared fence slot

2018-10-25T11:45:07Z

Let's support simultaneous submissions to multiple engines. Signed-off-by: Christian König Reviewed-by: Michel Dänzer Reviewed-by: Junwei Zhang Reviewed-by: Huang Rui Link: https://patchwork.kernel.org/patch/10626149/

drm/vgem: Remove unecessary dma_fence_ops

2018-08-17T09:22:58Z

dma_fence_default_wait is the default now, same for the trivial enable_signaling implementation. Also remove the ->signaled callback, vgem can't peek ahead with a fastpath, returning false is the default implementation. v2: Protect the meaningful space! (Chris) Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter Cc: Kees Cook Cc: Cihangir Akturk Cc: Chris Wilson Cc: Sean Paul Cc: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180809124544.9250-1-daniel.vetter@ffwll.ch

drm/vgem: Replace drm_dev_unref with drm_dev_put

2018-08-09T12:46:24Z

This patch unifies the naming of DRM functions for reference counting of struct drm_device. The resulting code is more aligned with the rest of the Linux kernel interfaces. Signed-off-by: Thomas Zimmermann Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180716074624.7931-1-tzimmermann@suse.de

drm/vgem: off by one in vgem_gem_fault()

2018-07-03T13:06:15Z

If page_offset is == num_pages then we end up reading beyond the end of obj->pages[]. Fixes: af33a9190d02 ("drm/vgem: Enable dmabuf import interfaces") Signed-off-by: Dan Carpenter Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180703122921.brlfxl4vx2ybvrd2@kili.mountain