kernel/drivers/gpu/drm/vgem/vgem_drv.c, branch linux-4.17.y

drm/vgem: switch to drm__get(), drm__put() helpers

2017-08-11T15:41:43Z

Use drm_*_get() and drm_*_put() helpers instead of drm_*_reference() and drm_*_unreference() helpers. drm_*_reference() and drm_*_unreference() functions are just compatibility alias for drm_*_get() and drm_*_put() and should not be used by new code. So convert all users of compatibility functions to use the new APIs. Generated by: scripts/coccinelle/api/drm-get-put.cocci Signed-off-by: Cihangir Akturk Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/1502454794-28558-26-git-send-email-cakturk@gmail.com

drm/vgem: add compat_ioctl support

2017-07-17T19:08:31Z

DRM drivers should supply a compat version if they're going to provide an ioctl implementation at all. This can confuse 32-bit user space on a 64-bit system. Signed-off-by: Brian Norris Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20170715031212.108695-1-briannorris@chromium.org

drm/vgem: Pin our pages for dmabuf exports

2017-06-23T11:04:22Z

When the caller maps their dmabuf and we return an sg_table, the caller doesn't expect the pages beneath that sg_table to vanish on a whim (i.e. under mempressure). The contract is that the pages are pinned for the duration of the mapping (from dma_buf_map_attachment() to dma_buf_unmap_attachment). To comply, we need to introduce our own vgem_object.pages_pin_count and elevate it across the mapping. However, the drm_prime interface we use calls drv->prime_pin on dma_buf_attach and drv->prime_unpin on dma_buf_detach, which while that does cover the mapping is much broader than is desired -- but it will do for now. v2: also hold the pin across prime_vmap/vunmap Reported-by: Tomi Sarvela Testcase: igt/gem_concurrent_blit/*swap*vgem* Fixes: 5ba6c9ff961a ("drm/vgem: Fix mmaping") Signed-off-by: Chris Wilson Cc: Tomi Sarvela Cc: Laura Abbott Cc: Sean Paul Cc: Matthew Auld Cc: Daniel Vetter Cc: # needs a backport Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170622134617.17912-1-chris@chris-wilson.co.uk

drm/vgem: Fix return value check in vgem_init()

2017-05-22T07:47:34Z

In case of error, the function platform_device_register_simple() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: af33a9190d02 ("drm/vgem: Enable dmabuf import interfaces") Signed-off-by: Wei Yongjun Reviewed-by: Chris Wilson [danvet: Fix fixes: tag per Chris' review.] Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170521011939.8111-1-weiyj.lk@gmail.com

drm: drop drm_[cm]alloc* helpers

2017-05-18T15:22:39Z

Now that drm_[cm]alloc* helpers are simple one line wrappers around kvmalloc_array and drm_free_large is just kvfree alias we can drop them and replace by their native forms. This shouldn't introduce any functional change. Changes since v1 - fix typo in drivers/gpu//drm/etnaviv/etnaviv_gem.c - noticed by 0day build robot Suggested-by: Daniel Vetter Signed-off-by: Michal Hocko drm: drop drm_[cm]alloc* helpers [danvet: Fixup vgem which grew another user very recently.] Signed-off-by: Daniel Vetter Acked-by: Christian König Link: http://patchwork.freedesktop.org/patch/msgid/20170517122312.GK18247@dhcp22.suse.cz

drm/vgem: Convert to a struct drm_device subclass

2017-05-10T08:14:06Z

With Laura's introduction of the fake platform device for importing dmabuf, we add a second static that is logically tied to the vgem_device. Convert vgem over to using the struct drm_device subclassing, so that the platform device is stored inside its owner. Signed-off-by: Chris Wilson Cc: Laura Abbott Cc: Daniel Vetter Reviewed-by: Laura Abbott Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170508132228.9509-1-chris@chris-wilson.co.uk

drm/vgem: Enable dmabuf import interfaces

2017-05-08T07:39:13Z

Enable the GEM dma-buf import interfaces in addition to the export interfaces. This lets vgem be used as a test source for other allocators (e.g. Ion). Reviewed-by: Chris Wilson Signed-off-by: Laura Abbott Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1493923548-20878-4-git-send-email-labbott@redhat.com

drm/vgem: Add a dummy platform device

2017-05-08T07:39:13Z

The vgem driver is currently registered independent of any actual device. Some usage of the dmabuf APIs require an actual device structure to do anything. Register a dummy platform device for use with dmabuf. Reviewed-by: Chris Wilson Signed-off-by: Laura Abbott Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1493923548-20878-2-git-send-email-labbott@redhat.com

Merge tag 'doc-4.11-images' of git://git.lwn.net/linux into drm-misc-next

2017-03-14T14:07:33Z

Pointer for Markus's image conversion work. We need this so we can merge all the pretty drm graphs for 4.12. Signed-off-by: Daniel Vetter

drm/vgem: switch to postclose

2017-03-14T13:38:33Z

I didn't spot anything that would require ordering here (well not anywhere else either), and I'm trying to unify at least modern drivers on one close hook. Cc: Chris Wilson Reviewed-by: Sean Paul Reviewed-by: Liviu Dudau Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170308141257.12119-18-daniel.vetter@ffwll.ch