linux-stable/drivers/dma-buf/seqno-fence.c
Chris Wilson f54d186700 dma-buf: Rename struct fence to dma_fence
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 Daniel

coccinelle 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 <chris@chris-wilson.co.uk>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161025120045.28839-1-chris@chris-wilson.co.uk
2016-10-25 14:40:39 +02:00

79 lines
2.2 KiB
C

/*
* seqno-fence, using a dma-buf to synchronize fencing
*
* Copyright (C) 2012 Texas Instruments
* Copyright (C) 2012-2014 Canonical Ltd
* Authors:
* Rob Clark <robdclark@gmail.com>
* Maarten Lankhorst <maarten.lankhorst@canonical.com>
*
* 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 details.
*/
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/seqno-fence.h>
static const char *seqno_fence_get_driver_name(struct dma_fence *fence)
{
struct seqno_fence *seqno_fence = to_seqno_fence(fence);
return seqno_fence->ops->get_driver_name(fence);
}
static const char *seqno_fence_get_timeline_name(struct dma_fence *fence)
{
struct seqno_fence *seqno_fence = to_seqno_fence(fence);
return seqno_fence->ops->get_timeline_name(fence);
}
static bool seqno_enable_signaling(struct dma_fence *fence)
{
struct seqno_fence *seqno_fence = to_seqno_fence(fence);
return seqno_fence->ops->enable_signaling(fence);
}
static bool seqno_signaled(struct dma_fence *fence)
{
struct seqno_fence *seqno_fence = to_seqno_fence(fence);
return seqno_fence->ops->signaled && seqno_fence->ops->signaled(fence);
}
static void seqno_release(struct dma_fence *fence)
{
struct seqno_fence *f = to_seqno_fence(fence);
dma_buf_put(f->sync_buf);
if (f->ops->release)
f->ops->release(fence);
else
dma_fence_free(&f->base);
}
static signed long seqno_wait(struct dma_fence *fence, bool intr,
signed long timeout)
{
struct seqno_fence *f = to_seqno_fence(fence);
return f->ops->wait(fence, intr, timeout);
}
const struct dma_fence_ops seqno_fence_ops = {
.get_driver_name = seqno_fence_get_driver_name,
.get_timeline_name = seqno_fence_get_timeline_name,
.enable_signaling = seqno_enable_signaling,
.signaled = seqno_signaled,
.wait = seqno_wait,
.release = seqno_release,
};
EXPORT_SYMBOL(seqno_fence_ops);