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dma-buf: minor doc touch-ups

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Just some tiny edits:
- fix link to struct dma_fence
- give slightly more meaningful title - the polling here is about
  implicit fences, explicit fences (in sync_file or drm_syncobj) also
  have their own polling

v2: I misplaced the .rst include change corresponding to this patch.

Reviewed-by: Thomas Hellstrom <thomas.hellstrom@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200612070535.1778368-1-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2020-06-12 09:05:35 +02:00
parent 7e06886bbf
commit 102514ec73
2 changed files with 6 additions and 6 deletions
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6
Documentation/driver-api/dma-buf.rst
View File

@ -100,11 +100,11 @@ CPU Access to DMA Buffer Objects
.. kernel-doc:: drivers/dma-buf/dma-buf.c
:doc: cpu access
Fence Poll Support
~~~~~~~~~~~~~~~~~~
Implicit Fence Poll Support
~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. kernel-doc:: drivers/dma-buf/dma-buf.c
:doc: fence polling
:doc: implicit fence polling
Kernel Functions and Structures Reference
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

6
drivers/dma-buf/dma-buf.c
View File

@ -161,11 +161,11 @@ static loff_t dma_buf_llseek(struct file *file, loff_t offset, int whence)
}
/**
* DOC: fence polling
* DOC: implicit fence polling
*
* To support cross-device and cross-driver synchronization of buffer access
* implicit fences (represented internally in the kernel with &struct fence) can
* be attached to a &dma_buf. The glue for that and a few related things are
* implicit fences (represented internally in the kernel with &struct dma_fence)
* can be attached to a &dma_buf. The glue for that and a few related things are
* provided in the &dma_resv structure.
*
* Userspace can query the state of these implicitly tracked fences using poll()