kernel/linux.git/drivers/gpu/drm/virtio, branch v5.10.45

drm/virtio: use kvmalloc for large allocations

2021-03-07T11:34:04+00:00

commit ea86f3defd55f141a44146e66cbf8ffb683d60da upstream. We observed that some of virtio_gpu_object_shmem_init() allocations can be rather costly - order 6 - which can be difficult to fulfill under memory pressure conditions. Switch to kvmalloc_array() in virtio_gpu_object_shmem_init() and let the kernel vmalloc the entries array. Signed-off-by: Sergey Senozhatsky Link: http://patchwork.freedesktop.org/patch/msgid/20201105014744.1662226-1-senozhatsky@chromium.org Signed-off-by: Gerd Hoffmann Signed-off-by: Doug Horn Signed-off-by: Greg Kroah-Hartman

drm/virtio: make sure context is created in gem open

2021-03-04T10:37:38+00:00

[ Upstream commit 8aeef9d4f48917ce85710949b079548974b4a638 ] The context might still be missing when DRM_IOCTL_PRIME_FD_TO_HANDLE is the first ioctl on the drm_file. Fixes: 72b48ae800da ("drm/virtio: enqueue virtio_gpu_create_context after the first 3D ioctl") Cc: Gurchetan Singh Cc: Gerd Hoffmann Signed-off-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20210107210726.269584-1-olvaffe@gmail.com Reviewed-by: Gurchetan Singh Signed-off-by: Gerd Hoffmann Signed-off-by: Sasha Levin

Merge tag 'drm-misc-next-2020-09-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2020-09-22T23:52:24+00:00

drm-misc-next for 5.10: UAPI Changes: Cross-subsystem Changes: - virtio: Merged a PR for patches that will affect drm/virtio Core Changes: - dev: More devm_drm convertions and removal of drm_dev_init - atomic: Split out drm_atomic_helper_calc_timestamping_constants of drm_atomic_helper_update_legacy_modeset_state - ttm: More rework Driver Changes: - i915: selftests improvements - panfrost: support for Amlogic SoC - vc4: one fix - tree-wide: conversions to devm_drm_dev_alloc, - ast: simplifications of the atomic modesetting code - panfrost: multiple fixes - vc4: multiple fixes Signed-off-by: Dave Airlie From: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20200921152956.2gxnsdgxmwhvjyut@gilmour.lan

Merge branch 'for-5.10-drm-sg-fix' of https://github.com/mszyprow/linux into drm-next

2020-09-17T06:07:11+00:00

Please pull a set of fixes for various DRM drivers that finally resolve incorrect usage of the scatterlists (struct sg_table nents and orig_nents entries), what causes issues when IOMMU is used. Signed-off-by: Dave Airlie From: Marek Szyprowski Link: https://patchwork.freedesktop.org/patch/msgid/20200910080505.24456-1-m.szyprowski@samsung.com

drm/virtio: add virtio_gpu_cmd_unref_resource error handling

2020-09-15T11:30:53+00:00

Usually we wait for the host to complete the unref request, then cleanup the guest-side state of the object in the completion callback. When submitting the unref command failed the completion callback will not be called though, so cleanup right away. Fixes a WARN on stale mm entries on driver shutdown. Signed-off-by: Gerd Hoffmann Reviewed-by: Gurchetan Singh Link: http://patchwork.freedesktop.org/patch/msgid/20200908070723.6394-4-kraxel@redhat.com

drm/virtio: return virtio_gpu_queue errors

2020-09-15T11:30:53+00:00

In case queuing virtio commands fails (can happen when the device got unplugged) pass up the error. Signed-off-by: Gerd Hoffmann Reviewed-by: Gurchetan Singh Link: http://patchwork.freedesktop.org/patch/msgid/20200908070723.6394-3-kraxel@redhat.com

drm/virtio: use drmm_mode_config_init

2020-09-15T07:42:28+00:00

Use managed init call to simplify cleanup. Signed-off-by: Gerd Hoffmann Reviewed-by: Gurchetan Singh Link: http://patchwork.freedesktop.org/patch/msgid/20200908070723.6394-2-kraxel@redhat.com

Merge drm/drm-next into drm-misc-next

2020-09-14T16:11:40+00:00

Paul Cercueil needs some patches in -rc5 to apply new patches for ingenic properly. Signed-off-by: Maxime Ripard

Merge v5.9-rc5 into drm-next

2020-09-14T15:19:11+00:00

Paul needs 1a21e5b930e8 ("drm/ingenic: Fix leak of device_node pointer") and 3b5b005ef7d9 ("drm/ingenic: Fix driver not probing when IPU port is missing") from -fixes to be able to merge further ingenic patches into -next. Signed-off-by: Daniel Vetter

drm: virtio: fix common struct sg_table related issues

2020-09-10T06:18:35+00:00

The Documentation/DMA-API-HOWTO.txt states that the dma_map_sg() function returns the number of the created entries in the DMA address space. However the subsequent calls to the dma_sync_sg_for_{device,cpu}() and dma_unmap_sg must be called with the original number of the entries passed to the dma_map_sg(). struct sg_table is a common structure used for describing a non-contiguous memory buffer, used commonly in the DRM and graphics subsystems. It consists of a scatterlist with memory pages and DMA addresses (sgl entry), as well as the number of scatterlist entries: CPU pages (orig_nents entry) and DMA mapped pages (nents entry). It turned out that it was a common mistake to misuse nents and orig_nents entries, calling DMA-mapping functions with a wrong number of entries or ignoring the number of mapped entries returned by the dma_map_sg() function. To avoid such issues, lets use a common dma-mapping wrappers operating directly on the struct sg_table objects and use scatterlist page iterators where possible. This, almost always, hides references to the nents and orig_nents entries, making the code robust, easier to follow and copy/paste safe. Signed-off-by: Marek Szyprowski Acked-by: Gerd Hoffmann