211 lines
6.6 KiB
C
211 lines
6.6 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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**************************************************************************/
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#ifndef _XF86MM_H_
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#define _XF86MM_H_
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#include <stddef.h>
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#include "drm.h"
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/*
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* Note on multithreaded applications using this interface.
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* Libdrm is not threadsafe, so common buffer, TTM, and fence objects need to
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* be protected using an external mutex.
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*
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* Note: Don't protect the following functions, as it may lead to deadlocks:
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* drmBOUnmap(), drmFenceBuffers().
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* The kernel is synchronizing and refcounting buffer maps.
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* User space only needs to refcount object usage within the same application.
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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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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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typedef struct _drmFence{
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unsigned handle;
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int class;
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unsigned type;
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unsigned flags;
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unsigned signaled;
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unsigned pad[4]; /* for future expansion */
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} drmFence;
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typedef struct _drmBO{
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drm_bo_type_t type;
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unsigned handle;
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drm_u64_t mapHandle;
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unsigned flags;
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unsigned mask;
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unsigned mapFlags;
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unsigned long size;
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unsigned long offset;
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unsigned long start;
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unsigned replyFlags;
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unsigned fenceFlags;
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unsigned pageAlignment;
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void *virtual;
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void *mapVirtual;
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int mapCount;
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unsigned pad[8]; /* for future expansion */
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} drmBO;
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typedef struct _drmBONode {
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drmMMListHead head;
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drmBO *buf;
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drm_bo_arg_t bo_arg;
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unsigned long arg0;
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unsigned long arg1;
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} drmBONode;
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typedef struct _drmBOList {
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unsigned numTarget;
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unsigned numCurrent;
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unsigned numOnList;
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drmMMListHead list;
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drmMMListHead free;
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} drmBOList;
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/* Fencing */
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extern int drmFenceCreate(int fd, unsigned flags, int class,
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unsigned type,
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drmFence *fence);
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extern int drmFenceDestroy(int fd, const drmFence *fence);
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extern int drmFenceReference(int fd, unsigned handle, drmFence *fence);
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extern int drmFenceUnreference(int fd, const drmFence *fence);
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extern int drmFenceFlush(int fd, drmFence *fence, unsigned flush_type);
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extern int drmFenceSignaled(int fd, drmFence *fence,
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unsigned fenceType, int *signaled);
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extern int drmFenceWait(int fd, unsigned flags, drmFence *fence,
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unsigned flush_type);
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extern int drmFenceEmit(int fd, unsigned flags, drmFence *fence,
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unsigned emit_type);
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extern int drmFenceBuffers(int fd, unsigned flags, drmFence *fence);
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extern int drmFenceUpdate(int fd, drmFence *fence);
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/*
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* Buffer object list functions.
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*/
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extern void drmBOFreeList(drmBOList *list);
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extern int drmBOResetList(drmBOList *list);
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extern void *drmBOListIterator(drmBOList *list);
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extern void *drmBOListNext(drmBOList *list, void *iterator);
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extern drmBO *drmBOListBuf(void *iterator);
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extern int drmBOCreateList(int numTarget, drmBOList *list);
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/*
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* Buffer object functions.
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*/
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extern int drmBOCreate(int fd, unsigned long start, unsigned long size,
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unsigned pageAlignment,void *user_buffer,
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drm_bo_type_t type, unsigned mask,
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unsigned hint, drmBO *buf);
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extern int drmBODestroy(int fd, drmBO *buf);
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extern int drmBOReference(int fd, unsigned handle, drmBO *buf);
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extern int drmBOUnReference(int fd, drmBO *buf);
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extern int drmBOMap(int fd, drmBO *buf, unsigned mapFlags, unsigned mapHint,
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void **address);
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extern int drmBOUnmap(int fd, drmBO *buf);
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extern int drmBOValidate(int fd, drmBO *buf, unsigned flags, unsigned mask,
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unsigned hint);
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extern int drmBOFence(int fd, drmBO *buf, unsigned flags, unsigned fenceHandle);
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extern int drmBOInfo(int fd, drmBO *buf);
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extern int drmBOBusy(int fd, drmBO *buf, int *busy);
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extern int drmAddValidateItem(drmBOList *list, drmBO *buf, unsigned flags,
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unsigned mask,
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int *newItem);
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extern int drmBOValidateList(int fd, drmBOList *list);
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extern int drmBOFenceList(int fd, drmBOList *list, unsigned fenceHandle);
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extern int drmBOWaitIdle(int fd, drmBO *buf, unsigned hint);
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/*
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* Initialization functions.
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*/
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extern int drmMMInit(int fd, unsigned long pOffset, unsigned long pSize,
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unsigned memType);
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extern int drmMMTakedown(int fd, unsigned memType);
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extern int drmMMLock(int fd, unsigned memType);
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extern int drmMMUnlock(int fd, unsigned memType);
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#endif
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