kernel/linux.git/drivers/gpu/drm/virtio/virtgpu_object.c, branch v5.14.8

drm/virtio: Create Dumb BOs as guest Blobs (v3)

2021-04-15T08:55:18+00:00

If support for Blob resources is available, then dumb BOs created by the driver can be considered as guest Blobs. v2: Don't skip transfer and flush commands as part of plane update as the device may have created a shared mapping. (Gerd) v3: Don't create dumb BOs as Guest blobs if Virgl is enabled. (Gurchetan) Cc: Gerd Hoffmann Signed-off-by: Vivek Kasireddy Acked-by: Gurchetan Singh Link: http://patchwork.freedesktop.org/patch/msgid/20210413052614.2486768-1-vivek.kasireddy@intel.com Signed-off-by: Gerd Hoffmann

drm/virtio: fix possible leak/unlock virtio_gpu_object_array

2021-03-09T11:06:18+00:00

virtio_gpu_object array is not freed or unlocked in some failed cases. Signed-off-by: xndcn Link: http://patchwork.freedesktop.org/patch/msgid/20210305151819.14330-1-xndchn@gmail.com Signed-off-by: Gerd Hoffmann

drm/shmem-helper: Use cached mappings by default

2020-11-24T08:10:21+00:00

SHMEM-buffer backing storage is allocated from system memory; which is typically cachable. The default mode for SHMEM objects is writecombine though. Unify SHMEM semantics by defaulting to cached mappings. The exception is pages imported via dma-buf. DMA memory is usually not cached. DRM drivers that require write-combined mappings set the map_wc flag in struct drm_gem_shmem_object to true. This currently affects lima, panfrost and v3d. The drivers mgag200, udl, virtio and vkms continue to use default shmem mappings. The drivers cirrus and gm12u320 change caching flags. Both used writecombine and now switch over to shmem defaults. Both drivers use SHMEM objects as shadow buffers for internal video memory, so cached mappings will not affect them negatively. v3: * set value of shmem pointer before dereferencing it in __drm_gem_shmem_create() (Dan, kernel test robot) v2: * recreate patch on top of latest SHMEM helpers * update lima, panfrost, v3d to select writecombine (Daniel, Rob) Signed-off-by: Thomas Zimmermann Acked-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20201117133156.26822-2-tzimmermann@suse.de

drm/virtio: use kvmalloc for large allocations

2020-11-05T11:33:26+00:00

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

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

2020-11-02T10:17:54+00:00

Daniel needs -rc2 in drm-misc-next to merge some patches Signed-off-by: Maxime Ripard

drm/virtio: implement blob resources: resource create blob ioctl

2020-09-29T09:23:51+00:00

Implement resource create blob as specified. Signed-off-by: Gerd Hoffmann Acked-by: Tomeu Vizoso Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-18-gurchetansingh@chromium.org Co-developed-by: Gurchetan Singh Signed-off-by: Gurchetan Singh

drm/virtio: implement blob resources: implement vram object

2020-09-29T09:23:33+00:00

A virtio-gpu vram object is based on range-based allocation. No guest shmemfs backing, so we call drm_gem_private_object_init. This is for host memory without any guest backing (atleast initially). Signed-off-by: Gerd Hoffmann Acked-by: Tomeu Vizoso Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-12-gurchetansingh@chromium.org Co-developed-by: Gurchetan Singh Signed-off-by: Gurchetan Singh

drm/virtio: implement blob resources: expose virtio_gpu_resource_id_get

2020-09-29T09:23:28+00:00

VRAM object will need it. Signed-off-by: Gurchetan Singh Acked-by: Tomeu Vizoso Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-10-gurchetansingh@chromium.org Signed-off-by: Gerd Hoffmann

drm/virtio: blob prep: refactor getting pages and attaching backing

2020-09-29T09:22:42+00:00

Useful for upcoming blob resources. Signed-off-by: Gurchetan Singh Acked-by: Tomeu Vizoso Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-1-gurchetansingh@chromium.org Signed-off-by: Gerd Hoffmann

drm/virtgpu: Set PRIME export function in struct drm_gem_object_funcs

2020-09-25T07:21:33+00:00

GEM object functions deprecate several similar callback interfaces in struct drm_driver. This patch replaces virtgpu's per-driver PRIME export function with a per-object function. Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter Acked-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20200923102159.24084-19-tzimmermann@suse.de