31 May, 2019
1 commit
-
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more detailsextracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 655 file(s).
Signed-off-by: Thomas Gleixner
Reviewed-by: Allison Randal
Reviewed-by: Kate Stewart
Reviewed-by: Richard Fontana
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman
17 Jan, 2019
1 commit
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The kerneldoc comment for struct dma_fence_array lacks a description
of the "work" member, leading to this docs-build warning:./include/linux/dma-fence-array.h:54: warning: Function parameter or member 'work' not described in 'dma_fence_array'
Add a description and make the warning go away.
Signed-off-by: Jonathan Corbet
Signed-off-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/20190116153436.3b244cda@lwn.net
22 Nov, 2017
1 commit
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Ages ago Rob Clark noted,
"Currently with fence-array, we have a potential deadlock situation. If
we fence_add_callback() on an array-fence, the array-fence's lock is
acquired first, and in it's ->enable_signaling() callback, it will install
cbs on it's array-member fences, so the array-member's lock is acquired
second.But in the signal path, the array-member's lock is acquired first, and
the array-fence's lock acquired second."Rob proposed either extensive changes to dma-fence to unnest the
fence-array signaling, or to defer the signaling onto a workqueue. This
is a more refined version of the later, that should keep the latency
of the fence signaling to a minimum by using an irq-work, which is
executed asap.Reported-by: Rob Clark
Suggested-by: Rob Clark
References: 1476635975-21981-1-git-send-email-robdclark@gmail.com
Signed-off-by: Chris Wilson
Cc: Rob Clark
Cc: Gustavo Padovan
Cc: Sumit Semwal
Cc: Christian König
Reviewed-by: Christian König
Signed-off-by: Sumit Semwal
Link: https://patchwork.freedesktop.org/patch/msgid/20171114162719.30958-1-chris@chris-wilson.co.uk
18 Mar, 2017
1 commit
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Add a helper to check if all fences in a fence array are from a given
context. For convenience, the function can also handle being given a
non-array fence.Signed-off-by: Philipp Zabel
Reviewed-by: Gustavo Padovan
Acked-by: Sumit Semwal
Signed-off-by: Sumit Semwal
Link: http://patchwork.freedesktop.org/patch/msgid/1489768492-25190-1-git-send-email-p.zabel@pengutronix.de
25 Oct, 2016
1 commit
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I plan to usurp the short name of struct fence for a core kernel struct,
and so I need to rename the specialised fence/timeline for DMA
operations to make room.A consensus was reached in
https://lists.freedesktop.org/archives/dri-devel/2016-July/113083.html
that making clear this fence applies to DMA operations was a good thing.
Since then the patch has grown a bit as usage increases, so hopefully it
remains a good thing!(v2...: rebase, rerun spatch)
v3: Compile on msm, spotted a manual fixup that I broke.
v4: Try again for msm, sorry Danielcoccinelle script:
@@@@
- struct fence
+ struct dma_fence
@@@@
- struct fence_ops
+ struct dma_fence_ops
@@@@
- struct fence_cb
+ struct dma_fence_cb
@@@@
- struct fence_array
+ struct dma_fence_array
@@@@
- enum fence_flag_bits
+ enum dma_fence_flag_bits
@@@@
(
- fence_init
+ dma_fence_init
|
- fence_release
+ dma_fence_release
|
- fence_free
+ dma_fence_free
|
- fence_get
+ dma_fence_get
|
- fence_get_rcu
+ dma_fence_get_rcu
|
- fence_put
+ dma_fence_put
|
- fence_signal
+ dma_fence_signal
|
- fence_signal_locked
+ dma_fence_signal_locked
|
- fence_default_wait
+ dma_fence_default_wait
|
- fence_add_callback
+ dma_fence_add_callback
|
- fence_remove_callback
+ dma_fence_remove_callback
|
- fence_enable_sw_signaling
+ dma_fence_enable_sw_signaling
|
- fence_is_signaled_locked
+ dma_fence_is_signaled_locked
|
- fence_is_signaled
+ dma_fence_is_signaled
|
- fence_is_later
+ dma_fence_is_later
|
- fence_later
+ dma_fence_later
|
- fence_wait_timeout
+ dma_fence_wait_timeout
|
- fence_wait_any_timeout
+ dma_fence_wait_any_timeout
|
- fence_wait
+ dma_fence_wait
|
- fence_context_alloc
+ dma_fence_context_alloc
|
- fence_array_create
+ dma_fence_array_create
|
- to_fence_array
+ to_dma_fence_array
|
- fence_is_array
+ dma_fence_is_array
|
- trace_fence_emit
+ trace_dma_fence_emit
|
- FENCE_TRACE
+ DMA_FENCE_TRACE
|
- FENCE_WARN
+ DMA_FENCE_WARN
|
- FENCE_ERR
+ DMA_FENCE_ERR
)
(
...
)Signed-off-by: Chris Wilson
Reviewed-by: Gustavo Padovan
Acked-by: Sumit Semwal
Acked-by: Christian König
Signed-off-by: Daniel Vetter
Link: http://patchwork.freedesktop.org/patch/msgid/20161025120045.28839-1-chris@chris-wilson.co.uk