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f54d186700
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
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
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* include/linux/sync_file.h
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*
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* Copyright (C) 2012 Google, Inc.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef _LINUX_SYNC_FILE_H
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#define _LINUX_SYNC_FILE_H
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#include <linux/types.h>
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#include <linux/kref.h>
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#include <linux/ktime.h>
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <linux/dma-fence.h>
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#include <linux/dma-fence-array.h>
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/**
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* struct sync_file - sync file to export to the userspace
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* @file: file representing this fence
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* @kref: reference count on fence.
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* @name: name of sync_file. Useful for debugging
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* @sync_file_list: membership in global file list
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* @wq: wait queue for fence signaling
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* @fence: fence with the fences in the sync_file
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* @cb: fence callback information
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*/
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struct sync_file {
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struct file *file;
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struct kref kref;
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char name[32];
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#ifdef CONFIG_DEBUG_FS
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struct list_head sync_file_list;
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#endif
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wait_queue_head_t wq;
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struct dma_fence *fence;
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struct dma_fence_cb cb;
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};
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#define POLL_ENABLED DMA_FENCE_FLAG_USER_BITS
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struct sync_file *sync_file_create(struct dma_fence *fence);
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struct dma_fence *sync_file_get_fence(int fd);
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#endif /* _LINUX_SYNC_H */
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