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

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author	Jesse Barnes <jbarnes@virtuousgeek.org>	2008-12-03 11:54:07 -0800
committer	Jesse Barnes <jbarnes@virtuousgeek.org>	2008-12-03 11:54:07 -0800
commit	12e68f8059485fb4f02a15f74ab2fa3bdff38c81 (patch)
tree	3970daf68cc737d0ec4a53614cd92e7e2a518455 /linux-core/xgi_drm.h
parent	d5d5aca7f959f0e357f99dd517a421c015d0712f (diff)
parent	b0d93c74d884b40bd94469a5ef75fdb2fef17680 (diff)

Merge branch 'master' into modesetting-gem

Diffstat (limited to 'linux-core/xgi_drm.h')

0 files changed, 0 insertions, 0 deletions

/************************************************************************** * * Copyright © 2007 Intel Corporation * 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. * * **************************************************************************/ /* * 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; struct _dri_bo { /** * Size in bytes of the buffer object. * * The size may be larger than the size originally requested for the * allocation, such as being aligned to page size. */ 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; }; /** * 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); /** Takes a reference on a buffer object */ void (*bo_reference)(dri_bo *bo); /** * Releases a reference on a buffer object, freeing the data if * rerefences remain. */ void (*bo_unreference)(dri_bo *bo); /** * Maps the buffer into userspace. * * This function will block waiting for any existing execution on the * buffer to complete, first. The resulting mapping is available at * buf->virtual. */ int (*bo_map)(dri_bo *buf, int write_enable); /** Reduces the refcount on the userspace mapping of the buffer object. */ int (*bo_unmap)(dri_bo *buf); /** * Write data into an object. * * This is an optional function, if missing, * dri_bo will map/memcpy/unmap. */ int (*bo_subdata) (dri_bo *buf, unsigned long offset, unsigned long size, const void *data); /** * Read data from an object * * This is an optional function, if missing, * dri_bo will map/memcpy/unmap. */ int (*bo_get_subdata) (dri_bo *bo, unsigned long offset, unsigned long size, void *data); /** * Waits for rendering to an object by the GPU to have completed. * * This is not required for any access to the BO by bo_map, bo_subdata, etc. * It is merely a way for the driver to implement glFinish. */ void (*bo_wait_rendering) (dri_bo *bo); /** * Tears down the buffer manager instance. */ void (*destroy)(dri_bufmgr *bufmgr); /** * Processes the relocations, either in userland or by converting the list * for use in batchbuffer submission. * * Kernel-based implementations will return a pointer to the arguments * to be handed with batchbuffer submission to the kernel. The userland * implementation performs the buffer validation and emits relocations * into them the appopriate order. * * \param batch_buf buffer at the root of the tree of relocations * \return argument to be completed and passed to the execbuffers ioctl * (if any). */ void *(*process_relocs)(dri_bo *batch_buf); void (*post_submit)(dri_bo *batch_buf); int (*check_aperture_space)(dri_bo **bo_array, int count); int debug; /**< Enables verbose debugging printouts */ }; dri_bo *dri_bo_alloc(dri_bufmgr *bufmgr, const char *name, unsigned long size, unsigned int alignment); void dri_bo_reference(dri_bo *bo); void dri_bo_unreference(dri_bo *bo); int dri_bo_map(dri_bo *buf, int write_enable); int dri_bo_unmap(dri_bo *buf); int dri_bo_subdata(dri_bo *bo, unsigned long offset, unsigned long size, const void *data); int dri_bo_get_subdata(dri_bo *bo, unsigned long offset, unsigned long size, void *data); void dri_bo_wait_rendering(dri_bo *bo); void dri_bufmgr_set_debug(dri_bufmgr *bufmgr, int enable_debug); void dri_bufmgr_destroy(dri_bufmgr *bufmgr);


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