renesas/drm.git - libdrm, cloned from git://anongit.freedesktop.org/mesa/drm

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Diffstat (limited to 'linux-core/drm_bufs.c')

0 files changed, 0 insertions, 0 deletions

/************************************************************************** * * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. 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 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. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * **************************************************************************/ #ifndef _XF86MM_H_ #define _XF86MM_H_ #include <stddef.h> #include <stdint.h> #include "drm.h" /* * Note on multithreaded applications using this interface. * Libdrm is not threadsafe, so common buffer, TTM, and fence objects need to * be protected using an external mutex. * * Note: Don't protect the following functions, as it may lead to deadlocks: * drmBOUnmap(). * The kernel is synchronizing and refcounting buffer maps. * User space only needs to refcount object usage within the same application. */ /* * List macros heavily inspired by the Linux kernel * list handling. No list looping yet. */ typedef struct _drmMMListHead { struct _drmMMListHead *prev; struct _drmMMListHead *next; } drmMMListHead; #define DRMINITLISTHEAD(__item) \ do{ \ (__item)->prev = (__item); \ (__item)->next = (__item); \ } while (0) #define DRMLISTADD(__item, __list) \ do { \ (__item)->prev = (__list); \ (__item)->next = (__list)->next; \ (__list)->next->prev = (__item); \ (__list)->next = (__item); \ } while (0) #define DRMLISTADDTAIL(__item, __list) \ do { \ (__item)->next = (__list); \ (__item)->prev = (__list)->prev; \ (__list)->prev->next = (__item); \ (__list)->prev = (__item); \ } while(0) #define DRMLISTDEL(__item) \ do { \ (__item)->prev->next = (__item)->next; \ (__item)->next->prev = (__item)->prev; \ } while(0) #define DRMLISTDELINIT(__item) \ do { \ (__item)->prev->next = (__item)->next; \ (__item)->next->prev = (__item)->prev; \ (__item)->next = (__item); \ (__item)->prev = (__item); \ } while(0) #define DRMLISTENTRY(__type, __item, __field) \ ((__type *)(((char *) (__item)) - offsetof(__type, __field))) typedef struct _drmFence { unsigned handle; int fence_class; unsigned type; unsigned flags; unsigned signaled; uint32_t sequence; unsigned pad[4]; /* for future expansion */ } drmFence; typedef struct _drmBO { unsigned handle; uint64_t mapHandle; uint64_t flags; uint64_t proposedFlags; unsigned mapFlags; unsigned long size; unsigned long offset; unsigned long start; unsigned replyFlags; unsigned fenceFlags; unsigned pageAlignment; unsigned tileInfo; unsigned hwTileStride; unsigned desiredTileStride; void *virtual; void *mapVirtual; int mapCount; unsigned pad[8]; /* for future expansion */ } drmBO; /* * Fence functions. */ extern int drmFenceCreate(int fd, unsigned flags, int fence_class, unsigned type, drmFence *fence); extern int drmFenceReference(int fd, unsigned handle, drmFence *fence); extern int drmFenceUnreference(int fd, const drmFence *fence); extern int drmFenceFlush(int fd, drmFence *fence, unsigned flush_type); extern int drmFenceSignaled(int fd, drmFence *fence, unsigned fenceType, int *signaled); extern int drmFenceWait(int fd, unsigned flags, drmFence *fence, unsigned flush_type); extern int drmFenceEmit(int fd, unsigned flags, drmFence *fence, unsigned emit_type); extern int drmFenceBuffers(int fd, unsigned flags, uint32_t fence_class, drmFence *fence);


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