diff options
Diffstat (limited to 'src/mesa/drivers/dri/common/dri_bufmgr.h')
| -rw-r--r-- | src/mesa/drivers/dri/common/dri_bufmgr.h | 205 |
1 files changed, 152 insertions, 53 deletions
diff --git a/src/mesa/drivers/dri/common/dri_bufmgr.h b/src/mesa/drivers/dri/common/dri_bufmgr.h index 01f149ae4e..3be342926f 100644 --- a/src/mesa/drivers/dri/common/dri_bufmgr.h +++ b/src/mesa/drivers/dri/common/dri_bufmgr.h @@ -1,5 +1,6 @@ /************************************************************************** * + * Copyright © 2007 Intel Corporation * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA * All Rights Reserved. * @@ -28,72 +29,170 @@ /* * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com> * Keith Whitwell <keithw-at-tungstengraphics-dot-com> + * Eric Anholt <eric@anholt.net> */ #ifndef _DRI_BUFMGR_H_ #define _DRI_BUFMGR_H_ #include <xf86drm.h> +typedef struct _dri_bufmgr dri_bufmgr; +typedef struct _dri_bo dri_bo; +typedef struct _dri_fence dri_fence; -struct _DriFenceObject; -struct _DriBufferObject; -struct _DriBufferPool; +struct _dri_bo { + /** Size in bytes of the buffer object. */ + unsigned long size; + /** + * Card virtual address (offset from the beginning of the aperture) for the + * object. Only valid while validated. + */ + unsigned long offset; + /** + * Virtual address for accessing the buffer data. Only valid while mapped. + */ + void *virtual; + /** Buffer manager context associated with this buffer object */ + dri_bufmgr *bufmgr; +}; -extern struct _DriFenceObject *driFenceBuffers(int fd, char *name, - unsigned flags); +struct _dri_fence { + /** + * This is an ORed mask of DRM_BO_FLAG_READ, DRM_BO_FLAG_WRITE, and + * DRM_FLAG_EXE indicating the operations associated with this fence. + * + * It is constant for the life of the fence object. + */ + unsigned int type; + /** Buffer manager context associated with this fence */ + dri_bufmgr *bufmgr; +}; -extern struct _DriFenceObject *driFenceReference(struct _DriFenceObject *fence); +/** + * Context for a buffer manager instance. + * + * Contains public methods followed by private storage for the buffer manager. + */ +struct _dri_bufmgr { + /** + * Allocate a buffer object. + * + * Buffer objects are not necessarily initially mapped into CPU virtual + * address space or graphics device aperture. They must be mapped using + * bo_map() to be used by the CPU, and validated for use using bo_validate() + * to be used from the graphics device. + */ + dri_bo *(*bo_alloc)(dri_bufmgr *bufmgr_ctx, const char *name, + unsigned long size, unsigned int alignment, + unsigned int location_mask); -extern void driFenceUnReference(struct _DriFenceObject *fence); + /** + * Allocates a buffer object for a static allocation. + * + * Static allocations are ones such as the front buffer that are offered by + * the X Server, which are never evicted and never moved. + */ + dri_bo *(*bo_alloc_static)(dri_bufmgr *bufmgr_ctx, const char *name, + unsigned long offset, unsigned long size, + void *virtual, unsigned int location_mask); -extern void -driFenceFinish(struct _DriFenceObject *fence, unsigned type, int lazy); + /** Takes a reference on a buffer object */ + void (*bo_reference)(dri_bo *bo); -extern int driFenceSignaled(struct _DriFenceObject *fence, unsigned type); -extern unsigned driFenceType(struct _DriFenceObject *fence); + /** + * Releases a reference on a buffer object, freeing the data if + * rerefences remain. + */ + void (*bo_unreference)(dri_bo *bo); -/* - * Return a pointer to the libdrm buffer object this DriBufferObject - * uses. - */ + /** + * Maps the buffer into userspace. + * + * This function will block waiting for any existing fence on the buffer to + * clear, first. The resulting mapping is available at buf->virtual. +\ */ + int (*bo_map)(dri_bo *buf, GLboolean write_enable); + + /** Reduces the refcount on the userspace mapping of the buffer object. */ + int (*bo_unmap)(dri_bo *buf); + + /** + * Makes the buffer accessible to the graphics chip. + * + * The resulting offset of the buffer within the graphics aperture is then + * available at buf->offset until the buffer is fenced. + * + * Flags should consist of the memory types that the buffer may be validated + * into and the read/write/exe flags appropriate to the use of the buffer. + */ + int (*bo_validate)(dri_bo *buf, unsigned int flags); + + /** + * Associates the current set of validated buffers with a fence. + * + * Once fenced, the buffer manager will allow the validated buffers to be + * evicted when the graphics device's execution has passed the fence + * command. + * + * The fence object will have flags for the sum of the read/write/exe flags + * of the validated buffers associated with it. + */ + dri_fence * (*fence_validated)(dri_bufmgr *bufmgr, const char *name, + GLboolean flushed); + + /** Takes a reference on a fence object */ + void (*fence_reference)(dri_fence *fence); + + /** + * Releases a reference on a fence object, freeing the data if + * rerefences remain. + */ + void (*fence_unreference)(dri_fence *fence); + + /** + * Blocks until the given fence is signaled. + */ + void (*fence_wait)(dri_fence *fence); + + /** + * Tears down the buffer manager instance. + */ + void (*destroy)(dri_bufmgr *bufmgr); +}; + +dri_bo *dri_bo_alloc(dri_bufmgr *bufmgr, const char *name, unsigned long size, + unsigned int alignment, unsigned int location_mask); +dri_bo *dri_bo_alloc_static(dri_bufmgr *bufmgr, const char *name, + unsigned long offset, unsigned long size, + void *virtual, unsigned int location_mask); +void dri_bo_reference(dri_bo *bo); +void dri_bo_unreference(dri_bo *bo); +int dri_bo_map(dri_bo *buf, GLboolean write_enable); +int dri_bo_unmap(dri_bo *buf); +int dri_bo_validate(dri_bo *buf, unsigned int flags); +dri_fence *dri_fence_validated(dri_bufmgr *bufmgr, const char *name, + GLboolean flushed); +void dri_fence_wait(dri_fence *fence); +void dri_fence_reference(dri_fence *fence); +void dri_fence_unreference(dri_fence *fence); + +void dri_bo_subdata(dri_bo *bo, unsigned long offset, + unsigned long size, const void *data); +void dri_bo_get_subdata(dri_bo *bo, unsigned long offset, + unsigned long size, void *data); + +dri_bufmgr *dri_bufmgr_ttm_init(int fd, unsigned int fence_type, + unsigned int fence_type_flush); -extern drmBO *driBOKernel(struct _DriBufferObject *buf); -extern void *driBOMap(struct _DriBufferObject *buf, unsigned flags, - unsigned hint); -extern void driBOUnmap(struct _DriBufferObject *buf); -extern unsigned long driBOOffset(struct _DriBufferObject *buf); -extern unsigned driBOFlags(struct _DriBufferObject *buf); -extern struct _DriBufferObject *driBOReference(struct _DriBufferObject *buf); -extern void driBOUnReference(struct _DriBufferObject *buf); -extern void driBOData(struct _DriBufferObject *r_buf, - unsigned size, const void *data, unsigned flags); -extern void driBOSubData(struct _DriBufferObject *buf, - unsigned long offset, unsigned long size, - const void *data); -extern void driBOGetSubData(struct _DriBufferObject *buf, - unsigned long offset, unsigned long size, - void *data); -extern void driGenBuffers(struct _DriBufferPool *pool, - const char *name, - unsigned n, - struct _DriBufferObject *buffers[], - unsigned alignment, unsigned flags, unsigned hint); -extern void driDeleteBuffers(unsigned n, struct _DriBufferObject *buffers[]); -extern void driInitBufMgr(int fd); -extern void driBOCreateList(int target, drmBOList * list); -extern void driBOResetList(drmBOList * list); -extern void driBOAddListItem(drmBOList * list, struct _DriBufferObject *buf, - unsigned flags, unsigned mask); -extern void driBOValidateList(int fd, drmBOList * list); - -extern void driBOFence(struct _DriBufferObject *buf, - struct _DriFenceObject *fence); - -extern void driPoolTakeDown(struct _DriBufferPool *pool); -extern void driBOSetStatic(struct _DriBufferObject *buf, - unsigned long offset, - unsigned long size, void *virtual, unsigned flags); -extern void driBOWaitIdle(struct _DriBufferObject *buf, int lazy); -extern void driPoolTakeDown(struct _DriBufferPool *pool); +void dri_bufmgr_fake_contended_lock_take(dri_bufmgr *bufmgr); +dri_bufmgr *dri_bufmgr_fake_init(unsigned long low_offset, void *low_virtual, + unsigned long size, + unsigned int (*fence_emit)(void *private), + int (*fence_wait)(void *private, + unsigned int cookie), + void *driver_priv); +void dri_bufmgr_destroy(dri_bufmgr *bufmgr); +dri_bo *dri_ttm_bo_create_from_handle(dri_bufmgr *bufmgr, const char *name, + unsigned int handle); #endif |