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

Age	Commit message (Expand)	Author
2005-04-26	Convert NOMAN to the new preferred spelling NO_MAN to quiet warnings.	Eric Anholt
2002-10-30	Kernel support for vblank syncing on Rage 128 and Matrox.	Eric Anholt
2002-08-30	Remove some extra symlinking for kernel module building that hasn't been	Eric Anholt
2002-07-05	merged bsd-3-0-0-branch	Alan Hourihane
2002-01-27	Import of XFree86 4.2.0	David Dawes
2000-06-13	Merged bsd-1-0-1	Doug Rabson

/* * Copyright © 2008 Intel Corporation * * 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, sublicense, * 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 above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * 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 NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS 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. * * Authors: * Eric Anholt <eric@anholt.net> * */ /** * @file intel_bufmgr_priv.h * * Private definitions of Intel-specific bufmgr functions and structures. */ #ifndef INTEL_BUFMGR_PRIV_H #define INTEL_BUFMGR_PRIV_H /** * Context for a buffer manager instance. * * Contains public methods followed by private storage for the buffer manager. */ struct _drm_intel_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() or drm_intel_gem_bo_map_gtt() to be used by the CPU. */ drm_intel_bo *(*bo_alloc) (drm_intel_bufmgr *bufmgr, const char *name, unsigned long size, unsigned int alignment); /** * Allocate a buffer object, hinting that it will be used as a * render target. * * This is otherwise the same as bo_alloc. */ drm_intel_bo *(*bo_alloc_for_render) (drm_intel_bufmgr *bufmgr, const char *name, unsigned long size, unsigned int alignment); /** * Allocate a tiled buffer object. * * Alignment for tiled objects is set automatically; the 'flags' * argument provides a hint about how the object will be used initially. * * Valid tiling formats are: * I915_TILING_NONE * I915_TILING_X * I915_TILING_Y * * Note the tiling format may be rejected; callers should check the * 'tiling_mode' field on return, as well as the pitch value, which * may have been rounded up to accommodate for tiling restrictions. */ drm_intel_bo *(*bo_alloc_tiled) (drm_intel_bufmgr *bufmgr, const char *name, int x, int y, int cpp, uint32_t *tiling_mode, unsigned long *pitch, unsigned long flags); /** Takes a reference on a buffer object */ void (*bo_reference) (drm_intel_bo *bo); /** * Releases a reference on a buffer object, freeing the data if * no references remain. */ void (*bo_unreference) (drm_intel_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) (drm_intel_bo *bo, int write_enable); /** * Reduces the refcount on the userspace mapping of the buffer * object. */ int (*bo_unmap) (drm_intel_bo *bo); /** * Write data into an object. * * This is an optional function, if missing, * drm_intel_bo will map/memcpy/unmap. */ int (*bo_subdata) (drm_intel_bo *bo, unsigned long offset, unsigned long size, const void *data); /** * Read data from an object * * This is an optional function, if missing, * drm_intel_bo will map/memcpy/unmap. */ int (*bo_get_subdata) (drm_intel_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) (drm_intel_bo *bo); /** * Tears down the buffer manager instance. */ void (*destroy) (drm_intel_bufmgr *bufmgr); /** * Add relocation entry in reloc_buf, which will be updated with the * target buffer's real offset on on command submission. * * Relocations remain in place for the lifetime of the buffer object. * * \param bo Buffer to write the relocation into. * \param offset Byte offset within reloc_bo of the pointer to * target_bo. * \param target_bo Buffer whose offset should be written into the * relocation entry. * \param target_offset Constant value to be added to target_bo's * offset in relocation entry. * \param read_domains GEM read domains which the buffer will be * read into by the command that this relocation * is part of. * \param write_domains GEM read domains which the buffer will be * dirtied in by the command that this * relocation is part of. */ int (*bo_emit_reloc) (drm_intel_bo *bo, uint32_t offset, drm_intel_bo *target_bo, uint32_t target_offset, uint32_t read_domains, uint32_t write_domain); int (*bo_emit_reloc_fence)(drm_intel_bo *bo, uint32_t offset, drm_intel_bo *target_bo, uint32_t target_offset, uint32_t read_domains, uint32_t write_domain); /** Executes the command buffer pointed to by bo. */ int (*bo_exec) (drm_intel_bo *bo, int used, drm_clip_rect_t *cliprects, int num_cliprects, int DR4); /** Executes the command buffer pointed to by bo on the selected * ring buffer */ int (*bo_mrb_exec) (drm_intel_bo *bo, int used, drm_clip_rect_t *cliprects, int num_cliprects, int DR4, unsigned flags); /** * Pin a buffer to the aperture and fix the offset until unpinned * * \param buf Buffer to pin * \param alignment Required alignment for aperture, in bytes */ int (*bo_pin) (drm_intel_bo *bo, uint32_t alignment); /** * Unpin a buffer from the aperture, allowing it to be removed * * \param buf Buffer to unpin */ int (*bo_unpin) (drm_intel_bo *bo); /** * Ask that the buffer be placed in tiling mode * * \param buf Buffer to set tiling mode for * \param tiling_mode desired, and returned tiling mode */ int (*bo_set_tiling) (drm_intel_bo *bo, uint32_t * tiling_mode, uint32_t stride); /** * Get the current tiling (and resulting swizzling) mode for the bo. * * \param buf Buffer to get tiling mode for * \param tiling_mode returned tiling mode * \param swizzle_mode returned swizzling mode */ int (*bo_get_tiling) (drm_intel_bo *bo, uint32_t * tiling_mode, uint32_t * swizzle_mode); /** * Create a visible name for a buffer which can be used by other apps * * \param buf Buffer to create a name for * \param name Returned name */ int (*bo_flink) (drm_intel_bo *bo, uint32_t * name); /** * Returns 1 if mapping the buffer for write could cause the process * to block, due to the object being active in the GPU. */ int (*bo_busy) (drm_intel_bo *bo); /** * Specify the volatility of the buffer. * \param bo Buffer to create a name for * \param madv The purgeable status * * Use I915_MADV_DONTNEED to mark the buffer as purgeable, and it will be * reclaimed under memory pressure. If you subsequently require the buffer, * then you must pass I915_MADV_WILLNEED to mark the buffer as required. * * Returns 1 if the buffer was retained, or 0 if it was discarded whilst * marked as I915_MADV_DONTNEED. */ int (*bo_madvise) (drm_intel_bo *bo, int madv); int (*check_aperture_space) (drm_intel_bo ** bo_array, int count); /** * Disable buffer reuse for buffers which will be shared in some way, * as with scanout buffers. When the buffer reference count goes to * zero, it will be freed and not placed in the reuse list. * * \param bo Buffer to disable reuse for */ int (*bo_disable_reuse) (drm_intel_bo *bo); /** * Query whether a buffer is reusable. * * \param bo Buffer to query */ int (*bo_is_reusable) (drm_intel_bo *bo); /** * * Return the pipe associated with a crtc_id so that vblank * synchronization can use the correct data in the request. * This is only supported for KMS and gem at this point, when * unsupported, this function returns -1 and leaves the decision * of what to do in that case to the caller * * \param bufmgr the associated buffer manager * \param crtc_id the crtc identifier */ int (*get_pipe_from_crtc_id) (drm_intel_bufmgr *bufmgr, int crtc_id); /** Returns true if target_bo is in the relocation tree rooted at bo. */ int (*bo_references) (drm_intel_bo *bo, drm_intel_bo *target_bo); /**< Enables verbose debugging printouts */ int debug; }; #define ALIGN(value, alignment) ((value + alignment - 1) & ~(alignment - 1)) #define ROUND_UP_TO(x, y) (((x) + (y) - 1) / (y) * (y)) #define ROUND_UP_TO_MB(x) ROUND_UP_TO((x), 1024*1024) #endif /* INTEL_BUFMGR_PRIV_H */