X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=StdLib%2FInclude%2Fsys%2Fpool.h;fp=StdLib%2FInclude%2Fsys%2Fpool.h;h=0000000000000000000000000000000000000000;hb=964f432b9b0afe103c41c7613fade3e699118afe;hp=43c080a2272fa359e14f09f231eb8834eaed7449;hpb=e2d3a25f1a3135221a9c8061e1b8f90245d727eb;p=mirror_edk2.git diff --git a/StdLib/Include/sys/pool.h b/StdLib/Include/sys/pool.h deleted file mode 100644 index 43c080a227..0000000000 --- a/StdLib/Include/sys/pool.h +++ /dev/null @@ -1,311 +0,0 @@ -/* $NetBSD: pool.h,v 1.54 2006/08/20 09:35:25 yamt Exp $ */ - -/*- - * Copyright (c) 1997, 1998, 1999, 2000 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code is derived from software contributed to The NetBSD Foundation - * by Paul Kranenburg; by Jason R. Thorpe of the Numerical Aerospace - * Simulation Facility, NASA Ames Research Center. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the NetBSD - * Foundation, Inc. and its contributors. - * 4. Neither the name of The NetBSD Foundation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SYS_POOL_H_ -#define _SYS_POOL_H_ - -#ifdef _KERNEL -#define __POOL_EXPOSE -#endif - -#if defined(_KERNEL_OPT) -#include "opt_pool.h" -#endif - -#ifdef __POOL_EXPOSE -#include -#include -#include -#include -#if defined(_KERNEL) -#include -#endif /* defined(_KERNEL) */ -#endif - -#define PCG_NOBJECTS 16 - -#define POOL_PADDR_INVALID ((paddr_t) -1) - -#ifdef __POOL_EXPOSE -/* The pool cache group. */ -struct pool_cache_group { - LIST_ENTRY(pool_cache_group) - pcg_list; /* link in the pool cache's group list */ - u_int pcg_avail; /* # available objects */ - /* pointers to the objects */ - struct { - void *pcgo_va; /* cache object virtual address */ - paddr_t pcgo_pa;/* cache object physical address */ - } pcg_objects[PCG_NOBJECTS]; -}; - -LIST_HEAD(pool_cache_grouplist,pool_cache_group); -struct pool_cache { - LIST_ENTRY(pool_cache) - pc_poollist; /* entry on pool's group list */ - struct pool_cache_grouplist - pc_emptygroups; /* list of empty cache groups */ - struct pool_cache_grouplist - pc_fullgroups; /* list of full cache groups */ - struct pool_cache_grouplist - pc_partgroups; /* list of partial cache groups */ - struct pool *pc_pool; /* parent pool */ - struct simplelock pc_slock; /* mutex */ - - int (*pc_ctor)(void *, void *, int); - void (*pc_dtor)(void *, void *); - void *pc_arg; - - /* Statistics. */ - unsigned long pc_hits; /* cache hits */ - unsigned long pc_misses; /* cache misses */ - - unsigned long pc_ngroups; /* # cache groups */ - - unsigned long pc_nitems; /* # objects currently in cache */ -}; - -struct pool_allocator { - void *(*pa_alloc)(struct pool *, int); - void (*pa_free)(struct pool *, void *); - unsigned int pa_pagesz; - - /* The following fields are for internal use only. */ - struct simplelock pa_slock; - TAILQ_HEAD(, pool) pa_list; /* list of pools using this allocator */ - int pa_flags; -#define PA_INITIALIZED 0x01 - int pa_pagemask; - int pa_pageshift; - struct vm_map *pa_backingmap; -#if defined(_KERNEL) - struct vm_map **pa_backingmapptr; - SLIST_ENTRY(pool_allocator) pa_q; -#endif /* defined(_KERNEL) */ -}; - -LIST_HEAD(pool_pagelist,pool_item_header); - -struct pool { - LIST_ENTRY(pool) - pr_poollist; - struct pool_pagelist - pr_emptypages; /* Empty pages */ - struct pool_pagelist - pr_fullpages; /* Full pages */ - struct pool_pagelist - pr_partpages; /* Partially-allocated pages */ - struct pool_item_header *pr_curpage; - struct pool *pr_phpool; /* Pool item header pool */ - LIST_HEAD(,pool_cache) - pr_cachelist; /* Caches for this pool */ - unsigned int pr_size; /* Size of item */ - unsigned int pr_align; /* Requested alignment, must be 2^n */ - unsigned int pr_itemoffset; /* Align this offset in item */ - unsigned int pr_minitems; /* minimum # of items to keep */ - unsigned int pr_minpages; /* same in page units */ - unsigned int pr_maxpages; /* maximum # of pages to keep */ - unsigned int pr_npages; /* # of pages allocated */ - unsigned int pr_itemsperpage;/* # items that fit in a page */ - unsigned int pr_slack; /* unused space in a page */ - unsigned int pr_nitems; /* number of available items in pool */ - unsigned int pr_nout; /* # items currently allocated */ - unsigned int pr_hardlimit; /* hard limit to number of allocated - items */ - struct pool_allocator *pr_alloc;/* back-end allocator */ - TAILQ_ENTRY(pool) pr_alloc_list;/* link on allocator's pool list */ - - /* Drain hook. */ - void (*pr_drain_hook)(void *, int); - void *pr_drain_hook_arg; - - const char *pr_wchan; /* tsleep(9) identifier */ - unsigned int pr_flags; /* r/w flags */ - unsigned int pr_roflags; /* r/o flags */ -#define PR_NOWAIT 0x00 /* for symmetry */ -#define PR_WAITOK 0x02 -#define PR_WANTED 0x04 -#define PR_PHINPAGE 0x40 -#define PR_LOGGING 0x80 -#define PR_LIMITFAIL 0x100 /* even if waiting, fail if we hit limit */ -#define PR_RECURSIVE 0x200 /* pool contains pools, for vmstat(8) */ -#define PR_NOTOUCH 0x400 /* don't use free items to keep internal state*/ -#define PR_NOALIGN 0x800 /* don't assume backend alignment */ - - /* - * `pr_slock' protects the pool's data structures when removing - * items from or returning items to the pool, or when reading - * or updating read/write fields in the pool descriptor. - * - * We assume back-end page allocators provide their own locking - * scheme. They will be called with the pool descriptor _unlocked_, - * since the page allocators may block. - */ - struct simplelock pr_slock; - - SPLAY_HEAD(phtree, pool_item_header) pr_phtree; - - int pr_maxcolor; /* Cache colouring */ - int pr_curcolor; - int pr_phoffset; /* Offset in page of page header */ - - /* - * Warning message to be issued, and a per-time-delta rate cap, - * if the hard limit is reached. - */ - const char *pr_hardlimit_warning; - struct timeval pr_hardlimit_ratecap; - struct timeval pr_hardlimit_warning_last; - - /* - * Instrumentation - */ - unsigned long pr_nget; /* # of successful requests */ - unsigned long pr_nfail; /* # of unsuccessful requests */ - unsigned long pr_nput; /* # of releases */ - unsigned long pr_npagealloc; /* # of pages allocated */ - unsigned long pr_npagefree; /* # of pages released */ - unsigned int pr_hiwat; /* max # of pages in pool */ - unsigned long pr_nidle; /* # of idle pages */ - - /* - * Diagnostic aides. - */ - struct pool_log *pr_log; - int pr_curlogentry; - int pr_logsize; - - const char *pr_entered_file; /* reentrancy check */ - long pr_entered_line; - -#if defined(_KERNEL) - struct callback_entry pr_reclaimerentry; -#endif -}; -#endif /* __POOL_EXPOSE */ - -#ifdef _KERNEL -/* - * pool_allocator_kmem is the default that all pools get unless - * otherwise specified. pool_allocator_nointr is provided for - * pools that know they will never be accessed in interrupt - * context. - */ -extern struct pool_allocator pool_allocator_kmem; -extern struct pool_allocator pool_allocator_nointr; -#ifdef POOL_SUBPAGE -/* The above are subpage allocators in this case. */ -extern struct pool_allocator pool_allocator_kmem_fullpage; -extern struct pool_allocator pool_allocator_nointr_fullpage; -#endif - -struct link_pool_init { /* same as args to pool_init() */ - struct pool *pp; - size_t size; - u_int align; - u_int align_offset; - int flags; - const char *wchan; - struct pool_allocator *palloc; -}; -#define POOL_INIT(pp, size, align, align_offset, flags, wchan, palloc) \ -struct pool pp; \ -static const struct link_pool_init _link_ ## pp[1] = { \ - { &pp, size, align, align_offset, flags, wchan, palloc } \ -}; \ -__link_set_add_rodata(pools, _link_ ## pp) - -void pool_subsystem_init(void); - -void pool_init(struct pool *, size_t, u_int, u_int, - int, const char *, struct pool_allocator *); -void pool_destroy(struct pool *); - -void pool_set_drain_hook(struct pool *, - void (*)(void *, int), void *); - -void *pool_get(struct pool *, int); -void pool_put(struct pool *, void *); -int pool_reclaim(struct pool *); - -#ifdef POOL_DIAGNOSTIC -/* - * These versions do reentrancy checking. - */ -void *_pool_get(struct pool *, int, const char *, long); -void _pool_put(struct pool *, void *, const char *, long); -int _pool_reclaim(struct pool *, const char *, long); -#define pool_get(h, f) _pool_get((h), (f), __FILE__, __LINE__) -#define pool_put(h, v) _pool_put((h), (v), __FILE__, __LINE__) -#define pool_reclaim(h) _pool_reclaim((h), __FILE__, __LINE__) -#endif /* POOL_DIAGNOSTIC */ - -int pool_prime(struct pool *, int); -void pool_setlowat(struct pool *, int); -void pool_sethiwat(struct pool *, int); -void pool_sethardlimit(struct pool *, int, const char *, int); -void pool_drain(void *); - -/* - * Debugging and diagnostic aides. - */ -void pool_print(struct pool *, const char *); -void pool_printit(struct pool *, const char *, - void (*)(const char *, ...)); -void pool_printall(const char *, void (*)(const char *, ...)); -int pool_chk(struct pool *, const char *); - -/* - * Pool cache routines. - */ -void pool_cache_init(struct pool_cache *, struct pool *, - int (*)(void *, void *, int), - void (*)(void *, void *), - void *); -void pool_cache_destroy(struct pool_cache *); -void *pool_cache_get_paddr(struct pool_cache *, int, paddr_t *); -#define pool_cache_get(pc, f) pool_cache_get_paddr((pc), (f), NULL) -void pool_cache_put_paddr(struct pool_cache *, void *, paddr_t); -#define pool_cache_put(pc, o) pool_cache_put_paddr((pc), (o), \ - POOL_PADDR_INVALID) -void pool_cache_destruct_object(struct pool_cache *, void *); -void pool_cache_invalidate(struct pool_cache *); -#endif /* _KERNEL */ - -#endif /* _SYS_POOL_H_ */