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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 | - 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
126 lines
3.8 KiB
C
126 lines
3.8 KiB
C
/**************************************************************************
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*
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* Copyright © 2011-2012 VMware, Inc., Palo Alto, CA., USA
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef _VMWGFX_FENCE_H_
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#include <linux/dma-fence.h>
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#define VMW_FENCE_WAIT_TIMEOUT (5*HZ)
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struct vmw_private;
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struct vmw_fence_manager;
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/**
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*
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*
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*/
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enum vmw_action_type {
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VMW_ACTION_EVENT = 0,
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VMW_ACTION_MAX
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};
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struct vmw_fence_action {
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struct list_head head;
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enum vmw_action_type type;
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void (*seq_passed) (struct vmw_fence_action *action);
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void (*cleanup) (struct vmw_fence_action *action);
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};
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struct vmw_fence_obj {
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struct dma_fence base;
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struct list_head head;
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struct list_head seq_passed_actions;
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void (*destroy)(struct vmw_fence_obj *fence);
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};
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extern struct vmw_fence_manager *
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vmw_fence_manager_init(struct vmw_private *dev_priv);
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extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman);
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static inline void
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vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p)
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{
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struct vmw_fence_obj *fence = *fence_p;
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*fence_p = NULL;
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if (fence)
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dma_fence_put(&fence->base);
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}
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static inline struct vmw_fence_obj *
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vmw_fence_obj_reference(struct vmw_fence_obj *fence)
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{
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if (fence)
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dma_fence_get(&fence->base);
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return fence;
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}
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extern void vmw_fences_update(struct vmw_fence_manager *fman);
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extern bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence);
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extern int vmw_fence_obj_wait(struct vmw_fence_obj *fence,
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bool lazy,
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bool interruptible, unsigned long timeout);
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extern void vmw_fence_obj_flush(struct vmw_fence_obj *fence);
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extern int vmw_fence_create(struct vmw_fence_manager *fman,
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uint32_t seqno,
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struct vmw_fence_obj **p_fence);
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extern int vmw_user_fence_create(struct drm_file *file_priv,
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struct vmw_fence_manager *fman,
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uint32_t sequence,
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struct vmw_fence_obj **p_fence,
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uint32_t *p_handle);
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extern void vmw_fence_fifo_up(struct vmw_fence_manager *fman);
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extern void vmw_fence_fifo_down(struct vmw_fence_manager *fman);
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extern int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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extern int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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extern int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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extern int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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extern int vmw_event_fence_action_queue(struct drm_file *filee_priv,
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struct vmw_fence_obj *fence,
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struct drm_pending_event *event,
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uint32_t *tv_sec,
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uint32_t *tv_usec,
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bool interruptible);
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#endif /* _VMWGFX_FENCE_H_ */
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