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sync_dump() is an unused, unexported, function that adds 64k to the
kernel image and doesn't even provide locking around the global array it
uses.
add/remove: 0/2 grow/shrink: 0/0 up/down: 0/-65734 (-65734)
Function old new delta
sync_dump 198 - -198
sync_dump_buf 65536 - -65536
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190419181904.6199-1-chris@chris-wilson.co.uk
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The sync_debug.h header is internal, and only used by
sw_sync.c. Therefore, SW_SYNC is always defined and there
is no need for the stubs. Remove them and make the code
simpler.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180504180037.10661-1-ezequiel@collabora.com
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Reduce the list iteration when incrementing the timeline by storing the
fences in increasing order.
v2: Prevent spinlock recursion on free during create
v3: Fixup rebase conflict inside comments that escaped the compiler.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170629211253.22766-1-chris@chris-wilson.co.uk
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The sync_pt were not adding themselves atomically to the timeline lists,
corruption imminent. Only a single list is required to track the
unsignaled sync_pt, so reduce it and rename the lock more appropriately
along with using idiomatic names to distinguish a list from links along
it.
v2: Prevent spinlock recursion on free during create (next patch) and
fixup crossref in kerneldoc
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170629210532.5617-1-chris@chris-wilson.co.uk
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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 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
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- fence_release
+ dma_fence_release
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- fence_free
+ dma_fence_free
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- fence_get
+ dma_fence_get
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- fence_get_rcu
+ dma_fence_get_rcu
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- fence_put
+ dma_fence_put
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- fence_signal
+ dma_fence_signal
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- fence_signal_locked
+ dma_fence_signal_locked
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- fence_default_wait
+ dma_fence_default_wait
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- fence_add_callback
+ dma_fence_add_callback
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- fence_remove_callback
+ dma_fence_remove_callback
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- fence_enable_sw_signaling
+ dma_fence_enable_sw_signaling
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- fence_is_signaled_locked
+ dma_fence_is_signaled_locked
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- fence_is_signaled
+ dma_fence_is_signaled
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- fence_is_later
+ dma_fence_is_later
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- fence_later
+ dma_fence_later
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- fence_wait_timeout
+ dma_fence_wait_timeout
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- fence_wait_any_timeout
+ dma_fence_wait_any_timeout
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- fence_wait
+ dma_fence_wait
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- fence_context_alloc
+ dma_fence_context_alloc
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- fence_array_create
+ dma_fence_array_create
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- to_fence_array
+ to_dma_fence_array
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- fence_is_array
+ dma_fence_is_array
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- trace_fence_emit
+ trace_dma_fence_emit
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- FENCE_TRACE
+ DMA_FENCE_TRACE
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- FENCE_WARN
+ DMA_FENCE_WARN
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- 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
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SW_SYNC allows to run tests on the sync_file framework via debugfs on
<debugfs>/sync/sw_sync
Opening and closing the file triggers creation and release of a sync
timeline. To create fences on this timeline the SW_SYNC_IOC_CREATE_FENCE
ioctl should be used. To increment the timeline value use SW_SYNC_IOC_INC.
Also it exports Sync information on
<debugfs>/sync/info
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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