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ttm_agp_backend.c
(3.78 KB)
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ttm_bo.c
(45.21 KB)
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ttm_bo_api.h
(22.82 KB)
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ttm_bo_driver.h
(32.53 KB)
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ttm_bo_manager.c
(4.37 KB)
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ttm_bo_util.c
(16.33 KB)
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ttm_bo_vm.c
(13.26 KB)
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ttm_execbuf_util.c
(6.05 KB)
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ttm_execbuf_util.h
(3.89 KB)
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ttm_lock.c
(7.5 KB)
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ttm_lock.h
(6.57 KB)
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ttm_memory.c
(11.02 KB)
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ttm_memory.h
(5.05 KB)
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ttm_module.h
(1.52 KB)
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ttm_object.c
(11.57 KB)
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ttm_object.h
(8.69 KB)
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ttm_page_alloc.c
(22.59 KB)
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ttm_page_alloc.h
(2.78 KB)
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ttm_page_alloc_dma.c
(29.56 KB)
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ttm_placement.h
(3.41 KB)
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ttm_tt.c
(8.73 KB)
Editing: ttm_execbuf_util.h
/************************************************************************** * * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ /* * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com> */ /* $FreeBSD$ */ #ifndef _TTM_EXECBUF_UTIL_H_ #define _TTM_EXECBUF_UTIL_H_ #include <dev/drm2/ttm/ttm_bo_api.h> /** * struct ttm_validate_buffer * * @head: list head for thread-private list. * @bo: refcounted buffer object pointer. * @reserved: Indicates whether @bo has been reserved for validation. * @removed: Indicates whether @bo has been removed from lru lists. * @put_count: Number of outstanding references on bo::list_kref. * @old_sync_obj: Pointer to a sync object about to be unreferenced */ struct ttm_validate_buffer { struct list_head head; struct ttm_buffer_object *bo; bool reserved; bool removed; int put_count; void *old_sync_obj; }; /** * function ttm_eu_backoff_reservation * * @list: thread private list of ttm_validate_buffer structs. * * Undoes all buffer validation reservations for bos pointed to by * the list entries. */ extern void ttm_eu_backoff_reservation(struct list_head *list); /** * function ttm_eu_reserve_buffers * * @list: thread private list of ttm_validate_buffer structs. * * Tries to reserve bos pointed to by the list entries for validation. * If the function returns 0, all buffers are marked as "unfenced", * taken off the lru lists and are not synced for write CPU usage. * * If the function detects a deadlock due to multiple threads trying to * reserve the same buffers in reverse order, all threads except one will * back off and retry. This function may sleep while waiting for * CPU write reservations to be cleared, and for other threads to * unreserve their buffers. * * This function may return -ERESTART or -EAGAIN if the calling process * receives a signal while waiting. In that case, no buffers on the list * will be reserved upon return. * * Buffers reserved by this function should be unreserved by * a call to either ttm_eu_backoff_reservation() or * ttm_eu_fence_buffer_objects() when command submission is complete or * has failed. */ extern int ttm_eu_reserve_buffers(struct list_head *list); /** * function ttm_eu_fence_buffer_objects. * * @list: thread private list of ttm_validate_buffer structs. * @sync_obj: The new sync object for the buffers. * * This function should be called when command submission is complete, and * it will add a new sync object to bos pointed to by entries on @list. * It also unreserves all buffers, putting them on lru lists. * */ extern void ttm_eu_fence_buffer_objects(struct list_head *list, void *sync_obj); #endif
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