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https://gitlab.freedesktop.org/mesa/drm.git
synced 2025-12-20 15:10:10 +01:00
72abe983ad
This avoids using the oldest BO in the BO cache and waiting for it to be idle before we turn around and render to it with the GPU. Thanks to Chris Wilson for pointing out how silly we were being.
89 lines
3 KiB
C
89 lines
3 KiB
C
/**************************************************************************
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*
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* Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. 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 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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* 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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/*
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* List macros heavily inspired by the Linux kernel
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* list handling. No list looping yet.
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*/
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#include <stddef.h>
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typedef struct _drmMMListHead
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{
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struct _drmMMListHead *prev;
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struct _drmMMListHead *next;
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} drmMMListHead;
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#define DRMINITLISTHEAD(__item) \
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do{ \
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(__item)->prev = (__item); \
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(__item)->next = (__item); \
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} while (0)
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#define DRMLISTADD(__item, __list) \
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do { \
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(__item)->prev = (__list); \
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(__item)->next = (__list)->next; \
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(__list)->next->prev = (__item); \
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(__list)->next = (__item); \
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} while (0)
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#define DRMLISTADDTAIL(__item, __list) \
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do { \
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(__item)->next = (__list); \
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(__item)->prev = (__list)->prev; \
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(__list)->prev->next = (__item); \
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(__list)->prev = (__item); \
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} while(0)
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#define DRMLISTDEL(__item) \
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do { \
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(__item)->prev->next = (__item)->next; \
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(__item)->next->prev = (__item)->prev; \
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} while(0)
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#define DRMLISTDELINIT(__item) \
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do { \
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(__item)->prev->next = (__item)->next; \
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(__item)->next->prev = (__item)->prev; \
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(__item)->next = (__item); \
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(__item)->prev = (__item); \
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} while(0)
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#define DRMLISTENTRY(__type, __item, __field) \
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((__type *)(((char *) (__item)) - offsetof(__type, __field)))
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#define DRMLISTEMPTY(__item) ((__item)->next == (__item))
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#define DRMLISTFOREACHSAFE(__item, __temp, __list) \
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for ((__item) = (__list)->next, (__temp) = (__item)->next; \
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(__item) != (__list); \
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(__item) = (__temp), (__temp) = (__item)->next)
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#define DRMLISTFOREACHSAFEREVERSE(__item, __temp, __list) \
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for ((__item) = (__list)->prev, (__temp) = (__item)->prev; \
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(__item) != (__list); \
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(__item) = (__temp), (__temp) = (__item)->prev)
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