lkml.org 
[lkml]   [2020]   [May]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v4 0/3] Support virtio cross-device resources
Date
This patchset implements the current proposal for virtio cross-device
resource sharing [1]. It will be used to import virtio resources into
the virtio-video driver currently under discussion [2]. The patch
under consideration to add support in the virtio-video driver is [3].
It uses the APIs from v3 of this series, but the changes to update it
are relatively minor.

This patchset adds a new flavor of dma-bufs that supports querying the
underlying virtio object UUID, as well as adding support for exporting
resources from virtgpu.

[1] https://markmail.org/thread/2ypjt5cfeu3m6lxu
[2] https://markmail.org/thread/p5d3k566srtdtute
[3] https://markmail.org/thread/j4xlqaaim266qpks

v3 -> v4 changes:
- Replace dma-buf hooks with virtio dma-buf from v1.
- Remove virtio_attach callback, as the work that had been done
in that callback is now done on dma-buf export. The documented
requirement that get_uuid only be called on attached virtio
dma-bufs is also removed.
- Rebase and add call to virtio_gpu_notify for ASSIGN_UUID.

David Stevens (3):
virtio: add dma-buf support for exported objects
virtio-gpu: add VIRTIO_GPU_F_RESOURCE_UUID feature
drm/virtio: Support virtgpu exported resources

drivers/gpu/drm/virtio/virtgpu_drv.c | 3 +
drivers/gpu/drm/virtio/virtgpu_drv.h | 20 ++++++
drivers/gpu/drm/virtio/virtgpu_kms.c | 4 ++
drivers/gpu/drm/virtio/virtgpu_prime.c | 98 +++++++++++++++++++++++++-
drivers/gpu/drm/virtio/virtgpu_vq.c | 55 +++++++++++++++
drivers/virtio/Makefile | 2 +-
drivers/virtio/virtio.c | 6 ++
drivers/virtio/virtio_dma_buf.c | 91 ++++++++++++++++++++++++
include/linux/virtio.h | 1 +
include/linux/virtio_dma_buf.h | 58 +++++++++++++++
include/uapi/linux/virtio_gpu.h | 19 +++++
11 files changed, 353 insertions(+), 4 deletions(-)
create mode 100644 drivers/virtio/virtio_dma_buf.c
create mode 100644 include/linux/virtio_dma_buf.h

--
2.27.0.rc0.183.gde8f92d652-goog

\
 
 \ /
  Last update: 2020-05-26 13:00    [W:0.096 / U:14.340 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site