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- /**************************************************************************
- *
- * 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 "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(), drmFenceBuffers().
- * 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 class;
- unsigned type;
- unsigned flags;
- unsigned signaled;
- unsigned pad[4]; /* for future expansion */
- } drmFence;
-
- typedef struct _drmBO{
- drm_bo_type_t type;
- unsigned handle;
- drm_u64_t mapHandle;
- unsigned flags;
- unsigned mask;
- unsigned mapFlags;
- unsigned long size;
- unsigned long offset;
- unsigned long start;
- unsigned replyFlags;
- unsigned fenceFlags;
- unsigned pageAlignment;
- void *virtual;
- void *mapVirtual;
- int mapCount;
- unsigned pad[8]; /* for future expansion */
- } drmBO;
-
-
- typedef struct _drmBONode {
- drmMMListHead head;
- drmBO *buf;
- drm_bo_arg_t bo_arg;
- unsigned long arg0;
- unsigned long arg1;
- } drmBONode;
-
- typedef struct _drmBOList {
- unsigned numTarget;
- unsigned numCurrent;
- unsigned numOnList;
- drmMMListHead list;
- drmMMListHead free;
- } drmBOList;
-
- /* Fencing */
-
- extern int drmFenceCreate(int fd, unsigned flags, int class,
- unsigned type,
- drmFence *fence);
- extern int drmFenceDestroy(int fd, const 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, drmFence *fence);
-
-
- /*
- * Buffer object list functions.
- */
-
- extern void drmBOFreeList(drmBOList *list);
- extern int drmBOResetList(drmBOList *list);
- extern void *drmBOListIterator(drmBOList *list);
- extern void *drmBOListNext(drmBOList *list, void *iterator);
- extern drmBO *drmBOListBuf(void *iterator);
- extern int drmBOCreateList(int numTarget, drmBOList *list);
-
- /*
- * Buffer object functions.
- */
-
- extern int drmBOCreate(int fd, unsigned long start, unsigned long size,
- unsigned pageAlignment,void *user_buffer,
- drm_bo_type_t type, unsigned mask,
- unsigned hint, drmBO *buf);
- extern int drmBODestroy(int fd, drmBO *buf);
- extern int drmBOReference(int fd, unsigned handle, drmBO *buf);
- extern int drmBOUnReference(int fd, drmBO *buf);
- extern int drmBOMap(int fd, drmBO *buf, unsigned mapFlags, unsigned mapHint,
- void **address);
- extern int drmBOUnmap(int fd, drmBO *buf);
- extern int drmBOValidate(int fd, drmBO *buf, unsigned flags, unsigned mask,
- unsigned hint);
- extern int drmBOFence(int fd, drmBO *buf, unsigned flags, unsigned fenceHandle);
- extern int drmBOInfo(int fd, drmBO *buf);
- extern int drmBOBusy(int fd, drmBO *buf, int *busy);
-
-
- extern int drmAddValidateItem(drmBOList *list, drmBO *buf, unsigned flags,
- unsigned mask,
- int *newItem);
- extern int drmBOValidateList(int fd, drmBOList *list);
- extern int drmBOFenceList(int fd, drmBOList *list, unsigned fenceHandle);
- extern int drmBOWaitIdle(int fd, drmBO *buf, unsigned hint);
-
- /*
- * Initialization functions.
- */
-
- extern int drmMMInit(int fd, unsigned long pOffset, unsigned long pSize,
- unsigned memType);
- extern int drmMMTakedown(int fd, unsigned memType);
- extern int drmMMLock(int fd, unsigned memType);
- extern int drmMMUnlock(int fd, unsigned memType);
-
-
- #endif
-