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

Age	Commit message (Expand)	Author
2000-09-29	Audit calls to schedule() Remove tags from files shared with Linux kernel	Rik Faith
2000-09-24	commit xfree86 4.0.1d-pre update	Alan Hourihane
2000-08-04	Sync with Linux 2.4.0-test6-pre2	Rik Faith
2000-07-13	applied Jeff's xf86cvs-I810copy.patch	Brian Paul
2000-06-08	Merged glxmisc-3-0-0	Brian Paul
2000-05-25	Merged mga-0-0-3-branch	Keith Whitwell
2000-04-04	Merged mga branch with trunk	Jeff Hartmann
2000-02-22	Import of XFree86 3.9.18	Kevin E Martin

/************************************************************************** * * 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 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 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. * * **************************************************************************/ /* * Simple memory MANager interface that keeps track on allocate regions on a * per "owner" basis. All regions associated with an "owner" can be released * with a simple call. Typically if the "owner" exists. The owner is any * "unsigned long" identifier. Can typically be a pointer to a file private * struct or a context identifier. * * Authors: * Thomas Hellström <thomas-at-tungstengraphics-dot-com> */ #ifndef DRM_SMAN_H #define DRM_SMAN_H #include "drmP.h" #include "drm_hashtab.h" /* * A class that is an abstration of a simple memory allocator. * The sman implementation provides a default such allocator * using the drm_memrange.c implementation. But the user can replace it. * See the SiS implementation, which may use the SiS FB kernel module * for memory management. */ struct drm_sman_mm { /* private info. If allocated, needs to be destroyed by the destroy function */ void *private; /* Allocate a memory block with given size and alignment. Return an opaque reference to the memory block */ void *(*allocate) (void *private, unsigned long size, unsigned alignment); /* Free a memory block. "ref" is the opaque reference that we got from the "alloc" function */ void (*free) (void *private, void *ref); /* Free all resources associated with this allocator */ void (*destroy) (void *private); /* Return a memory offset from the opaque reference returned from the "alloc" function */ unsigned long (*offset) (void *private, void *ref); }; struct drm_memblock_item { struct list_head owner_list; struct drm_hash_item user_hash; void *mm_info; struct drm_sman_mm *mm; struct drm_sman *sman; }; struct drm_sman { struct drm_sman_mm *mm; int num_managers; struct drm_open_hash owner_hash_tab; struct drm_open_hash user_hash_tab; struct list_head owner_items; }; /* * Take down a memory manager. This function should only be called after a * successful init and after a call to drm_sman_cleanup. */ extern void drm_sman_takedown(struct drm_sman * sman); /* * Allocate structures for a manager. * num_managers are the number of memory pools to manage. (VRAM, AGP, ....) * user_order is the log2 of the number of buckets in the user hash table. * set this to approximately log2 of the max number of memory regions * that will be allocated for _all_ pools together. * owner_order is the log2 of the number of buckets in the owner hash table. * set this to approximately log2 of * the number of client file connections that will * be using the manager. * */ extern int drm_sman_init(struct drm_sman * sman, unsigned int num_managers, unsigned int user_order, unsigned int owner_order); /* * Initialize a drm_memrange.c allocator. Should be called only once for each * manager unless a customized allogator is used. */ extern int drm_sman_set_range(struct drm_sman * sman, unsigned int manager, unsigned long start, unsigned long size); /* * Initialize a customized allocator for one of the managers. * (See the SiS module). The object pointed to by "allocator" is copied, * so it can be destroyed after this call. */ extern int drm_sman_set_manager(struct drm_sman * sman, unsigned int mananger, struct drm_sman_mm * allocator); /* * Allocate a memory block. Aligment is not implemented yet. */ extern struct drm_memblock_item *drm_sman_alloc(struct drm_sman * sman, unsigned int manager, unsigned long size, unsigned alignment, unsigned long owner); /* * Free a memory block identified by its user hash key. */ extern int drm_sman_free_key(struct drm_sman * sman, unsigned int key); /* * returns 1 iff there are no stale memory blocks associated with this owner. * Typically called to determine if we need to idle the hardware and call * drm_sman_owner_cleanup. If there are no stale memory blocks, it removes all * resources associated with owner. */ extern int drm_sman_owner_clean(struct drm_sman * sman, unsigned long owner); /* * Frees all stale memory blocks associated with this owner. Note that this * requires that the hardware is finished with all blocks, so the graphics engine * should be idled before this call is made. This function also frees * any resources associated with "owner" and should be called when owner * is not going to be referenced anymore. */ extern void drm_sman_owner_cleanup(struct drm_sman * sman, unsigned long owner); /* * Frees all stale memory blocks associated with the memory manager. * See idling above. */ extern void drm_sman_cleanup(struct drm_sman * sman); #endif