| version 1.137.2.7, 2007/12/31 16:25:02 |
version 1.138, 2007/12/05 06:52:01 |
|
|
| #include <sys/cdefs.h> |
#include <sys/cdefs.h> |
| __KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
| |
|
| #include "opt_ddb.h" |
|
| #include "opt_pool.h" |
#include "opt_pool.h" |
| #include "opt_poollog.h" |
#include "opt_poollog.h" |
| #include "opt_lockdebug.h" |
#include "opt_lockdebug.h" |
| Line 59 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| Line 58 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| #include <sys/lockdebug.h> |
#include <sys/lockdebug.h> |
| #include <sys/xcall.h> |
#include <sys/xcall.h> |
| #include <sys/cpu.h> |
#include <sys/cpu.h> |
| #include <sys/atomic.h> |
|
| |
|
| #include <uvm/uvm.h> |
#include <uvm/uvm.h> |
| |
|
| Line 77 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| Line 75 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| */ |
*/ |
| |
|
| /* List of all pools */ |
/* List of all pools */ |
| TAILQ_HEAD(,pool) pool_head = TAILQ_HEAD_INITIALIZER(pool_head); |
LIST_HEAD(,pool) pool_head = LIST_HEAD_INITIALIZER(pool_head); |
| |
|
| |
/* List of all caches. */ |
| |
LIST_HEAD(,pool_cache) pool_cache_head = |
| |
LIST_HEAD_INITIALIZER(pool_cache_head); |
| |
|
| /* Private pool for page header structures */ |
/* Private pool for page header structures */ |
| #define PHPOOL_MAX 8 |
#define PHPOOL_MAX 8 |
| Line 125 struct pool_item_header { |
|
| Line 127 struct pool_item_header { |
|
| void * ph_page; /* this page's address */ |
void * ph_page; /* this page's address */ |
| struct timeval ph_time; /* last referenced */ |
struct timeval ph_time; /* last referenced */ |
| uint16_t ph_nmissing; /* # of chunks in use */ |
uint16_t ph_nmissing; /* # of chunks in use */ |
| uint16_t ph_off; /* start offset in page */ |
|
| union { |
union { |
| /* !PR_NOTOUCH */ |
/* !PR_NOTOUCH */ |
| struct { |
struct { |
| Line 134 struct pool_item_header { |
|
| Line 135 struct pool_item_header { |
|
| } phu_normal; |
} phu_normal; |
| /* PR_NOTOUCH */ |
/* PR_NOTOUCH */ |
| struct { |
struct { |
| pool_item_bitmap_t phu_bitmap[1]; |
uint16_t phu_off; /* start offset in page */ |
| |
pool_item_bitmap_t phu_bitmap[]; |
| } phu_notouch; |
} phu_notouch; |
| } ph_u; |
} ph_u; |
| }; |
}; |
| #define ph_itemlist ph_u.phu_normal.phu_itemlist |
#define ph_itemlist ph_u.phu_normal.phu_itemlist |
| |
#define ph_off ph_u.phu_notouch.phu_off |
| #define ph_bitmap ph_u.phu_notouch.phu_bitmap |
#define ph_bitmap ph_u.phu_notouch.phu_bitmap |
| |
|
| struct pool_item { |
struct pool_item { |
| Line 178 struct pool_item { |
|
| Line 181 struct pool_item { |
|
| * from it. |
* from it. |
| */ |
*/ |
| |
|
| static struct pool pcg_normal_pool; |
static struct pool pcgpool; |
| static struct pool pcg_large_pool; |
|
| static struct pool cache_pool; |
static struct pool cache_pool; |
| static struct pool cache_cpu_pool; |
static struct pool cache_cpu_pool; |
| |
|
| /* List of all caches. */ |
|
| TAILQ_HEAD(,pool_cache) pool_cache_head = |
|
| TAILQ_HEAD_INITIALIZER(pool_cache_head); |
|
| |
|
| int pool_cache_disable; |
|
| |
|
| |
|
| static pool_cache_cpu_t *pool_cache_put_slow(pool_cache_cpu_t *, int *, |
static pool_cache_cpu_t *pool_cache_put_slow(pool_cache_cpu_t *, int *, |
| void *, paddr_t); |
void *, paddr_t); |
| static pool_cache_cpu_t *pool_cache_get_slow(pool_cache_cpu_t *, int *, |
static pool_cache_cpu_t *pool_cache_get_slow(pool_cache_cpu_t *, int *, |
| Line 417 phtree_compare(struct pool_item_header * |
|
| Line 412 phtree_compare(struct pool_item_header * |
|
| SPLAY_PROTOTYPE(phtree, pool_item_header, ph_node, phtree_compare); |
SPLAY_PROTOTYPE(phtree, pool_item_header, ph_node, phtree_compare); |
| SPLAY_GENERATE(phtree, pool_item_header, ph_node, phtree_compare); |
SPLAY_GENERATE(phtree, pool_item_header, ph_node, phtree_compare); |
| |
|
| static inline struct pool_item_header * |
|
| pr_find_pagehead_noalign(struct pool *pp, void *v) |
|
| { |
|
| struct pool_item_header *ph, tmp; |
|
| |
|
| tmp.ph_page = (void *)(uintptr_t)v; |
|
| ph = SPLAY_FIND(phtree, &pp->pr_phtree, &tmp); |
|
| if (ph == NULL) { |
|
| ph = SPLAY_ROOT(&pp->pr_phtree); |
|
| if (ph != NULL && phtree_compare(&tmp, ph) >= 0) { |
|
| ph = SPLAY_NEXT(phtree, &pp->pr_phtree, ph); |
|
| } |
|
| KASSERT(ph == NULL || phtree_compare(&tmp, ph) < 0); |
|
| } |
|
| |
|
| return ph; |
|
| } |
|
| |
|
| /* |
/* |
| * Return the pool page header based on item address. |
* Return the pool page header based on item address. |
| */ |
*/ |
| Line 444 pr_find_pagehead(struct pool *pp, void * |
|
| Line 421 pr_find_pagehead(struct pool *pp, void * |
|
| struct pool_item_header *ph, tmp; |
struct pool_item_header *ph, tmp; |
| |
|
| if ((pp->pr_roflags & PR_NOALIGN) != 0) { |
if ((pp->pr_roflags & PR_NOALIGN) != 0) { |
| ph = pr_find_pagehead_noalign(pp, v); |
tmp.ph_page = (void *)(uintptr_t)v; |
| |
ph = SPLAY_FIND(phtree, &pp->pr_phtree, &tmp); |
| |
if (ph == NULL) { |
| |
ph = SPLAY_ROOT(&pp->pr_phtree); |
| |
if (ph != NULL && phtree_compare(&tmp, ph) >= 0) { |
| |
ph = SPLAY_NEXT(phtree, &pp->pr_phtree, ph); |
| |
} |
| |
KASSERT(ph == NULL || phtree_compare(&tmp, ph) < 0); |
| |
} |
| } else { |
} else { |
| void *page = |
void *page = |
| (void *)((uintptr_t)v & pp->pr_alloc->pa_pagemask); |
(void *)((uintptr_t)v & pp->pr_alloc->pa_pagemask); |
|
|
| pool_init(struct pool *pp, size_t size, u_int align, u_int ioff, int flags, |
pool_init(struct pool *pp, size_t size, u_int align, u_int ioff, int flags, |
| const char *wchan, struct pool_allocator *palloc, int ipl) |
const char *wchan, struct pool_allocator *palloc, int ipl) |
| { |
{ |
| |
#ifdef DEBUG |
| struct pool *pp1; |
struct pool *pp1; |
| |
#endif |
| size_t trysize, phsize; |
size_t trysize, phsize; |
| int off, slack; |
int off, slack; |
| |
|
| Line 639 pool_init(struct pool *pp, size_t size, |
|
| Line 626 pool_init(struct pool *pp, size_t size, |
|
| * Check that the pool hasn't already been initialised and |
* Check that the pool hasn't already been initialised and |
| * added to the list of all pools. |
* added to the list of all pools. |
| */ |
*/ |
| TAILQ_FOREACH(pp1, &pool_head, pr_poollist) { |
LIST_FOREACH(pp1, &pool_head, pr_poollist) { |
| if (pp == pp1) |
if (pp == pp1) |
| panic("pool_init: pool %s already initialised", |
panic("pool_init: pool %s already initialised", |
| wchan); |
wchan); |
| Line 853 pool_init(struct pool *pp, size_t size, |
|
| Line 840 pool_init(struct pool *pp, size_t size, |
|
| pool_init(&psppool, POOL_SUBPAGE, POOL_SUBPAGE, 0, |
pool_init(&psppool, POOL_SUBPAGE, POOL_SUBPAGE, 0, |
| PR_RECURSIVE, "psppool", &pool_allocator_meta, IPL_VM); |
PR_RECURSIVE, "psppool", &pool_allocator_meta, IPL_VM); |
| #endif |
#endif |
| |
pool_init(&pcgpool, sizeof(pcg_t), CACHE_LINE_SIZE, 0, 0, |
| size = sizeof(pcg_t) + |
"cachegrp", &pool_allocator_meta, IPL_VM); |
| (PCG_NOBJECTS_NORMAL - 1) * sizeof(pcgpair_t); |
|
| pool_init(&pcg_normal_pool, size, CACHE_LINE_SIZE, 0, 0, |
|
| "pcgnormal", &pool_allocator_meta, IPL_VM); |
|
| |
|
| size = sizeof(pcg_t) + |
|
| (PCG_NOBJECTS_LARGE - 1) * sizeof(pcgpair_t); |
|
| pool_init(&pcg_large_pool, size, CACHE_LINE_SIZE, 0, 0, |
|
| "pcglarge", &pool_allocator_meta, IPL_VM); |
|
| } |
} |
| |
|
| /* Insert into the list of all pools. */ |
if (__predict_true(!cold)) { |
| if (__predict_true(!cold)) |
/* Insert into the list of all pools. */ |
| mutex_enter(&pool_head_lock); |
mutex_enter(&pool_head_lock); |
| TAILQ_FOREACH(pp1, &pool_head, pr_poollist) { |
LIST_INSERT_HEAD(&pool_head, pp, pr_poollist); |
| if (strcmp(pp1->pr_wchan, pp->pr_wchan) > 0) |
|
| break; |
|
| } |
|
| if (pp1 == NULL) |
|
| TAILQ_INSERT_TAIL(&pool_head, pp, pr_poollist); |
|
| else |
|
| TAILQ_INSERT_BEFORE(pp1, pp, pr_poollist); |
|
| if (__predict_true(!cold)) |
|
| mutex_exit(&pool_head_lock); |
mutex_exit(&pool_head_lock); |
| |
|
| /* Insert this into the list of pools using this allocator. */ |
/* Insert this into the list of pools using this allocator. */ |
| if (__predict_true(!cold)) |
|
| mutex_enter(&palloc->pa_lock); |
mutex_enter(&palloc->pa_lock); |
| TAILQ_INSERT_TAIL(&palloc->pa_list, pp, pr_alloc_list); |
TAILQ_INSERT_TAIL(&palloc->pa_list, pp, pr_alloc_list); |
| if (__predict_true(!cold)) |
|
| mutex_exit(&palloc->pa_lock); |
mutex_exit(&palloc->pa_lock); |
| |
} else { |
| |
LIST_INSERT_HEAD(&pool_head, pp, pr_poollist); |
| |
TAILQ_INSERT_TAIL(&palloc->pa_list, pp, pr_alloc_list); |
| |
} |
| |
|
| pool_reclaim_register(pp); |
pool_reclaim_register(pp); |
| } |
} |
| Line 902 pool_destroy(struct pool *pp) |
|
| Line 875 pool_destroy(struct pool *pp) |
|
| mutex_enter(&pool_head_lock); |
mutex_enter(&pool_head_lock); |
| while (pp->pr_refcnt != 0) |
while (pp->pr_refcnt != 0) |
| cv_wait(&pool_busy, &pool_head_lock); |
cv_wait(&pool_busy, &pool_head_lock); |
| TAILQ_REMOVE(&pool_head, pp, pr_poollist); |
LIST_REMOVE(pp, pr_poollist); |
| if (drainpp == pp) |
if (drainpp == pp) |
| drainpp = NULL; |
drainpp = NULL; |
| mutex_exit(&pool_head_lock); |
mutex_exit(&pool_head_lock); |
| Line 1463 pool_prime_page(struct pool *pp, void *s |
|
| Line 1436 pool_prime_page(struct pool *pp, void *s |
|
| /* |
/* |
| * Color this page. |
* Color this page. |
| */ |
*/ |
| ph->ph_off = pp->pr_curcolor; |
cp = (char *)cp + pp->pr_curcolor; |
| cp = (char *)cp + ph->ph_off; |
|
| if ((pp->pr_curcolor += align) > pp->pr_maxcolor) |
if ((pp->pr_curcolor += align) > pp->pr_maxcolor) |
| pp->pr_curcolor = 0; |
pp->pr_curcolor = 0; |
| |
|
| Line 1709 pool_drain_start(struct pool **ppp, uint |
|
| Line 1681 pool_drain_start(struct pool **ppp, uint |
|
| { |
{ |
| struct pool *pp; |
struct pool *pp; |
| |
|
| KASSERT(!TAILQ_EMPTY(&pool_head)); |
KASSERT(!LIST_EMPTY(&pool_head)); |
| |
|
| pp = NULL; |
pp = NULL; |
| |
|
| Line 1717 pool_drain_start(struct pool **ppp, uint |
|
| Line 1689 pool_drain_start(struct pool **ppp, uint |
|
| mutex_enter(&pool_head_lock); |
mutex_enter(&pool_head_lock); |
| do { |
do { |
| if (drainpp == NULL) { |
if (drainpp == NULL) { |
| drainpp = TAILQ_FIRST(&pool_head); |
drainpp = LIST_FIRST(&pool_head); |
| } |
} |
| if (drainpp != NULL) { |
if (drainpp != NULL) { |
| pp = drainpp; |
pp = drainpp; |
| drainpp = TAILQ_NEXT(pp, pr_poollist); |
drainpp = LIST_NEXT(pp, pr_poollist); |
| } |
} |
| /* |
/* |
| * Skip completely idle pools. We depend on at least |
* Skip completely idle pools. We depend on at least |
| Line 1777 pool_printall(const char *modif, void (* |
|
| Line 1749 pool_printall(const char *modif, void (* |
|
| { |
{ |
| struct pool *pp; |
struct pool *pp; |
| |
|
| TAILQ_FOREACH(pp, &pool_head, pr_poollist) { |
LIST_FOREACH(pp, &pool_head, pr_poollist) { |
| pool_printit(pp, modif, pr); |
pool_printit(pp, modif, pr); |
| } |
} |
| } |
} |
| Line 1894 pool_print1(struct pool *pp, const char |
|
| Line 1866 pool_print1(struct pool *pp, const char |
|
| |
|
| #define PR_GROUPLIST(pcg) \ |
#define PR_GROUPLIST(pcg) \ |
| (*pr)("\t\tgroup %p: avail %d\n", pcg, pcg->pcg_avail); \ |
(*pr)("\t\tgroup %p: avail %d\n", pcg, pcg->pcg_avail); \ |
| for (i = 0; i < pcg->pcg_size; i++) { \ |
for (i = 0; i < PCG_NOBJECTS; i++) { \ |
| if (pcg->pcg_objects[i].pcgo_pa != \ |
if (pcg->pcg_objects[i].pcgo_pa != \ |
| POOL_PADDR_INVALID) { \ |
POOL_PADDR_INVALID) { \ |
| (*pr)("\t\t\t%p, 0x%llx\n", \ |
(*pr)("\t\t\t%p, 0x%llx\n", \ |
| Line 2067 pool_cache_bootstrap(pool_cache_t pc, si |
|
| Line 2039 pool_cache_bootstrap(pool_cache_t pc, si |
|
| void *arg) |
void *arg) |
| { |
{ |
| CPU_INFO_ITERATOR cii; |
CPU_INFO_ITERATOR cii; |
| pool_cache_t pc1; |
|
| struct cpu_info *ci; |
struct cpu_info *ci; |
| struct pool *pp; |
struct pool *pp; |
| |
|
| Line 2107 pool_cache_bootstrap(pool_cache_t pc, si |
|
| Line 2078 pool_cache_bootstrap(pool_cache_t pc, si |
|
| pc->pc_refcnt = 0; |
pc->pc_refcnt = 0; |
| pc->pc_freecheck = NULL; |
pc->pc_freecheck = NULL; |
| |
|
| if ((flags & PR_LARGECACHE) != 0) { |
|
| pc->pc_pcgsize = PCG_NOBJECTS_LARGE; |
|
| } else { |
|
| pc->pc_pcgsize = PCG_NOBJECTS_NORMAL; |
|
| } |
|
| |
|
| /* Allocate per-CPU caches. */ |
/* Allocate per-CPU caches. */ |
| memset(pc->pc_cpus, 0, sizeof(pc->pc_cpus)); |
memset(pc->pc_cpus, 0, sizeof(pc->pc_cpus)); |
| pc->pc_ncpu = 0; |
pc->pc_ncpu = 0; |
| if (ncpu < 2) { |
if (ncpu == 0) { |
| /* XXX For sparc: boot CPU is not attached yet. */ |
/* XXX For sparc: boot CPU is not attached yet. */ |
| pool_cache_cpu_init1(curcpu(), pc); |
pool_cache_cpu_init1(curcpu(), pc); |
| } else { |
} else { |
| Line 2124 pool_cache_bootstrap(pool_cache_t pc, si |
|
| Line 2089 pool_cache_bootstrap(pool_cache_t pc, si |
|
| pool_cache_cpu_init1(ci, pc); |
pool_cache_cpu_init1(ci, pc); |
| } |
} |
| } |
} |
| |
|
| /* Add to list of all pools. */ |
if (__predict_true(!cold)) { |
| if (__predict_true(!cold)) |
mutex_enter(&pp->pr_lock); |
| |
pp->pr_cache = pc; |
| |
mutex_exit(&pp->pr_lock); |
| mutex_enter(&pool_head_lock); |
mutex_enter(&pool_head_lock); |
| TAILQ_FOREACH(pc1, &pool_cache_head, pc_cachelist) { |
LIST_INSERT_HEAD(&pool_cache_head, pc, pc_cachelist); |
| if (strcmp(pc1->pc_pool.pr_wchan, pc->pc_pool.pr_wchan) > 0) |
|
| break; |
|
| } |
|
| if (pc1 == NULL) |
|
| TAILQ_INSERT_TAIL(&pool_cache_head, pc, pc_cachelist); |
|
| else |
|
| TAILQ_INSERT_BEFORE(pc1, pc, pc_cachelist); |
|
| if (__predict_true(!cold)) |
|
| mutex_exit(&pool_head_lock); |
mutex_exit(&pool_head_lock); |
| |
} else { |
| membar_sync(); |
pp->pr_cache = pc; |
| pp->pr_cache = pc; |
LIST_INSERT_HEAD(&pool_cache_head, pc, pc_cachelist); |
| |
} |
| } |
} |
| |
|
| /* |
/* |
| Line 2160 pool_cache_destroy(pool_cache_t pc) |
|
| Line 2120 pool_cache_destroy(pool_cache_t pc) |
|
| mutex_enter(&pool_head_lock); |
mutex_enter(&pool_head_lock); |
| while (pc->pc_refcnt != 0) |
while (pc->pc_refcnt != 0) |
| cv_wait(&pool_busy, &pool_head_lock); |
cv_wait(&pool_busy, &pool_head_lock); |
| TAILQ_REMOVE(&pool_cache_head, pc, pc_cachelist); |
LIST_REMOVE(pc, pc_cachelist); |
| mutex_exit(&pool_head_lock); |
mutex_exit(&pool_head_lock); |
| |
|
| /* First, invalidate the entire cache. */ |
/* First, invalidate the entire cache. */ |
| Line 2251 pool_cache_cpu_init(struct cpu_info *ci) |
|
| Line 2211 pool_cache_cpu_init(struct cpu_info *ci) |
|
| pool_cache_t pc; |
pool_cache_t pc; |
| |
|
| mutex_enter(&pool_head_lock); |
mutex_enter(&pool_head_lock); |
| TAILQ_FOREACH(pc, &pool_cache_head, pc_cachelist) { |
LIST_FOREACH(pc, &pool_cache_head, pc_cachelist) { |
| pc->pc_refcnt++; |
pc->pc_refcnt++; |
| mutex_exit(&pool_head_lock); |
mutex_exit(&pool_head_lock); |
| |
|
| Line 2319 pool_cache_invalidate_groups(pool_cache_ |
|
| Line 2279 pool_cache_invalidate_groups(pool_cache_ |
|
| pool_cache_destruct_object1(pc, object); |
pool_cache_destruct_object1(pc, object); |
| } |
} |
| |
|
| if (pcg->pcg_size == PCG_NOBJECTS_LARGE) { |
pool_put(&pcgpool, pcg); |
| pool_put(&pcg_large_pool, pcg); |
|
| } else { |
|
| KASSERT(pcg->pcg_size == PCG_NOBJECTS_NORMAL); |
|
| pool_put(&pcg_normal_pool, pcg); |
|
| } |
|
| } |
} |
| } |
} |
| |
|
| Line 2464 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| Line 2419 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| pc->pc_emptygroups = cur; |
pc->pc_emptygroups = cur; |
| pc->pc_nempty++; |
pc->pc_nempty++; |
| } |
} |
| KASSERT(pcg->pcg_avail == pcg->pcg_size); |
KASSERT(pcg->pcg_avail == PCG_NOBJECTS); |
| cc->cc_current = pcg; |
cc->cc_current = pcg; |
| pc->pc_fullgroups = pcg->pcg_next; |
pc->pc_fullgroups = pcg->pcg_next; |
| pc->pc_hits++; |
pc->pc_hits++; |
| Line 2536 pool_cache_get_paddr(pool_cache_t pc, in |
|
| Line 2491 pool_cache_get_paddr(pool_cache_t pc, in |
|
| if (pap != NULL) |
if (pap != NULL) |
| *pap = pcg->pcg_objects[pcg->pcg_avail].pcgo_pa; |
*pap = pcg->pcg_objects[pcg->pcg_avail].pcgo_pa; |
| pcg->pcg_objects[pcg->pcg_avail].pcgo_va = NULL; |
pcg->pcg_objects[pcg->pcg_avail].pcgo_va = NULL; |
| KASSERT(pcg->pcg_avail <= pcg->pcg_size); |
KASSERT(pcg->pcg_avail <= PCG_NOBJECTS); |
| KASSERT(object != NULL); |
KASSERT(object != NULL); |
| cc->cc_hits++; |
cc->cc_hits++; |
| pool_cache_cpu_exit(cc, &s); |
pool_cache_cpu_exit(cc, &s); |
| Line 2576 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| Line 2531 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| pcg_t *pcg, *cur; |
pcg_t *pcg, *cur; |
| uint64_t ncsw; |
uint64_t ncsw; |
| pool_cache_t pc; |
pool_cache_t pc; |
| u_int nobj; |
|
| |
|
| pc = cc->cc_cache; |
pc = cc->cc_cache; |
| cc->cc_misses++; |
cc->cc_misses++; |
| Line 2606 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| Line 2560 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| /* |
/* |
| * If there's a empty group, release our full |
* If there's a empty group, release our full |
| * group back to the cache. Install the empty |
* group back to the cache. Install the empty |
| * group and return. |
* group as cc_current and return. |
| */ |
*/ |
| |
if ((cur = cc->cc_current) != NULL) { |
| |
KASSERT(cur->pcg_avail == PCG_NOBJECTS); |
| |
cur->pcg_next = pc->pc_fullgroups; |
| |
pc->pc_fullgroups = cur; |
| |
pc->pc_nfull++; |
| |
} |
| KASSERT(pcg->pcg_avail == 0); |
KASSERT(pcg->pcg_avail == 0); |
| |
cc->cc_current = pcg; |
| pc->pc_emptygroups = pcg->pcg_next; |
pc->pc_emptygroups = pcg->pcg_next; |
| if (cc->cc_previous == NULL) { |
|
| cc->cc_previous = pcg; |
|
| } else { |
|
| if ((cur = cc->cc_current) != NULL) { |
|
| KASSERT(cur->pcg_avail == pcg->pcg_size); |
|
| cur->pcg_next = pc->pc_fullgroups; |
|
| pc->pc_fullgroups = cur; |
|
| pc->pc_nfull++; |
|
| } |
|
| cc->cc_current = pcg; |
|
| } |
|
| pc->pc_hits++; |
pc->pc_hits++; |
| pc->pc_nempty--; |
pc->pc_nempty--; |
| mutex_exit(&pc->pc_lock); |
mutex_exit(&pc->pc_lock); |
| Line 2640 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| Line 2590 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| * If we can't allocate a new group, just throw the |
* If we can't allocate a new group, just throw the |
| * object away. |
* object away. |
| */ |
*/ |
| nobj = pc->pc_pcgsize; |
pcg = pool_get(&pcgpool, PR_NOWAIT); |
| if (pool_cache_disable) { |
|
| pcg = NULL; |
|
| } else if (nobj == PCG_NOBJECTS_LARGE) { |
|
| pcg = pool_get(&pcg_large_pool, PR_NOWAIT); |
|
| } else { |
|
| pcg = pool_get(&pcg_normal_pool, PR_NOWAIT); |
|
| } |
|
| if (pcg == NULL) { |
if (pcg == NULL) { |
| pool_cache_destruct_object(pc, object); |
pool_cache_destruct_object(pc, object); |
| return NULL; |
return NULL; |
| } |
} |
| |
#ifdef DIAGNOSTIC |
| |
memset(pcg, 0, sizeof(*pcg)); |
| |
#else |
| pcg->pcg_avail = 0; |
pcg->pcg_avail = 0; |
| pcg->pcg_size = nobj; |
#endif |
| |
|
| /* |
/* |
| * Add the empty group to the cache and try again. |
* Add the empty group to the cache and try again. |
| Line 2686 pool_cache_put_paddr(pool_cache_t pc, vo |
|
| Line 2632 pool_cache_put_paddr(pool_cache_t pc, vo |
|
| do { |
do { |
| /* If the current group isn't full, release it there. */ |
/* If the current group isn't full, release it there. */ |
| pcg = cc->cc_current; |
pcg = cc->cc_current; |
| if (pcg != NULL && pcg->pcg_avail < pcg->pcg_size) { |
if (pcg != NULL && pcg->pcg_avail < PCG_NOBJECTS) { |
| |
KASSERT(pcg->pcg_objects[pcg->pcg_avail].pcgo_va |
| |
== NULL); |
| pcg->pcg_objects[pcg->pcg_avail].pcgo_va = object; |
pcg->pcg_objects[pcg->pcg_avail].pcgo_va = object; |
| pcg->pcg_objects[pcg->pcg_avail].pcgo_pa = pa; |
pcg->pcg_objects[pcg->pcg_avail].pcgo_pa = pa; |
| pcg->pcg_avail++; |
pcg->pcg_avail++; |
| Line 2744 pool_cache_xcall(pool_cache_t pc) |
|
| Line 2692 pool_cache_xcall(pool_cache_t pc) |
|
| s = splvm(); |
s = splvm(); |
| mutex_enter(&pc->pc_lock); |
mutex_enter(&pc->pc_lock); |
| if (cur != NULL) { |
if (cur != NULL) { |
| if (cur->pcg_avail == cur->pcg_size) { |
if (cur->pcg_avail == PCG_NOBJECTS) { |
| list = &pc->pc_fullgroups; |
list = &pc->pc_fullgroups; |
| pc->pc_nfull++; |
pc->pc_nfull++; |
| } else if (cur->pcg_avail == 0) { |
} else if (cur->pcg_avail == 0) { |
| Line 2758 pool_cache_xcall(pool_cache_t pc) |
|
| Line 2706 pool_cache_xcall(pool_cache_t pc) |
|
| *list = cur; |
*list = cur; |
| } |
} |
| if (prev != NULL) { |
if (prev != NULL) { |
| if (prev->pcg_avail == prev->pcg_size) { |
if (prev->pcg_avail == PCG_NOBJECTS) { |
| list = &pc->pc_fullgroups; |
list = &pc->pc_fullgroups; |
| pc->pc_nfull++; |
pc->pc_nfull++; |
| } else if (prev->pcg_avail == 0) { |
} else if (prev->pcg_avail == 0) { |
| Line 2938 pool_page_free_nointr(struct pool *pp, v |
|
| Line 2886 pool_page_free_nointr(struct pool *pp, v |
|
| |
|
| uvm_km_free_poolpage_cache(kernel_map, (vaddr_t) v); |
uvm_km_free_poolpage_cache(kernel_map, (vaddr_t) v); |
| } |
} |
| |
|
| #if defined(DDB) |
|
| static bool |
|
| pool_in_page(struct pool *pp, struct pool_item_header *ph, uintptr_t addr) |
|
| { |
|
| |
|
| return (uintptr_t)ph->ph_page <= addr && |
|
| addr < (uintptr_t)ph->ph_page + pp->pr_alloc->pa_pagesz; |
|
| } |
|
| |
|
| static bool |
|
| pool_in_item(struct pool *pp, void *item, uintptr_t addr) |
|
| { |
|
| |
|
| return (uintptr_t)item <= addr && addr < (uintptr_t)item + pp->pr_size; |
|
| } |
|
| |
|
| static bool |
|
| pool_in_cg(struct pool *pp, struct pool_cache_group *pcg, uintptr_t addr) |
|
| { |
|
| int i; |
|
| |
|
| if (pcg == NULL) { |
|
| return false; |
|
| } |
|
| for (i = 0; i < pcg->pcg_avail; i++) { |
|
| if (pool_in_item(pp, pcg->pcg_objects[i].pcgo_va, addr)) { |
|
| return true; |
|
| } |
|
| } |
|
| return false; |
|
| } |
|
| |
|
| static bool |
|
| pool_allocated(struct pool *pp, struct pool_item_header *ph, uintptr_t addr) |
|
| { |
|
| |
|
| if ((pp->pr_roflags & PR_NOTOUCH) != 0) { |
|
| unsigned int idx = pr_item_notouch_index(pp, ph, (void *)addr); |
|
| pool_item_bitmap_t *bitmap = |
|
| ph->ph_bitmap + (idx / BITMAP_SIZE); |
|
| pool_item_bitmap_t mask = 1 << (idx & BITMAP_MASK); |
|
| |
|
| return (*bitmap & mask) == 0; |
|
| } else { |
|
| struct pool_item *pi; |
|
| |
|
| LIST_FOREACH(pi, &ph->ph_itemlist, pi_list) { |
|
| if (pool_in_item(pp, pi, addr)) { |
|
| return false; |
|
| } |
|
| } |
|
| return true; |
|
| } |
|
| } |
|
| |
|
| void |
|
| pool_whatis(uintptr_t addr, void (*pr)(const char *, ...)) |
|
| { |
|
| struct pool *pp; |
|
| |
|
| TAILQ_FOREACH(pp, &pool_head, pr_poollist) { |
|
| struct pool_item_header *ph; |
|
| uintptr_t item; |
|
| bool allocated = true; |
|
| bool incache = false; |
|
| bool incpucache = false; |
|
| char cpucachestr[32]; |
|
| |
|
| if ((pp->pr_roflags & PR_PHINPAGE) != 0) { |
|
| LIST_FOREACH(ph, &pp->pr_fullpages, ph_pagelist) { |
|
| if (pool_in_page(pp, ph, addr)) { |
|
| goto found; |
|
| } |
|
| } |
|
| LIST_FOREACH(ph, &pp->pr_partpages, ph_pagelist) { |
|
| if (pool_in_page(pp, ph, addr)) { |
|
| allocated = |
|
| pool_allocated(pp, ph, addr); |
|
| goto found; |
|
| } |
|
| } |
|
| LIST_FOREACH(ph, &pp->pr_emptypages, ph_pagelist) { |
|
| if (pool_in_page(pp, ph, addr)) { |
|
| allocated = false; |
|
| goto found; |
|
| } |
|
| } |
|
| continue; |
|
| } else { |
|
| ph = pr_find_pagehead_noalign(pp, (void *)addr); |
|
| if (ph == NULL || !pool_in_page(pp, ph, addr)) { |
|
| continue; |
|
| } |
|
| allocated = pool_allocated(pp, ph, addr); |
|
| } |
|
| found: |
|
| if (allocated && pp->pr_cache) { |
|
| pool_cache_t pc = pp->pr_cache; |
|
| struct pool_cache_group *pcg; |
|
| int i; |
|
| |
|
| for (pcg = pc->pc_fullgroups; pcg != NULL; |
|
| pcg = pcg->pcg_next) { |
|
| if (pool_in_cg(pp, pcg, addr)) { |
|
| incache = true; |
|
| goto print; |
|
| } |
|
| } |
|
| for (i = 0; i < MAXCPUS; i++) { |
|
| pool_cache_cpu_t *cc; |
|
| |
|
| if ((cc = pc->pc_cpus[i]) == NULL) { |
|
| continue; |
|
| } |
|
| if (pool_in_cg(pp, cc->cc_current, addr) || |
|
| pool_in_cg(pp, cc->cc_previous, addr)) { |
|
| struct cpu_info *ci = |
|
| cpu_lookup_byindex(i); |
|
| |
|
| incpucache = true; |
|
| snprintf(cpucachestr, |
|
| sizeof(cpucachestr), |
|
| "cached by CPU %u", |
|
| (u_int)ci->ci_cpuid); |
|
| goto print; |
|
| } |
|
| } |
|
| } |
|
| print: |
|
| item = (uintptr_t)ph->ph_page + ph->ph_off; |
|
| item = item + rounddown(addr - item, pp->pr_size); |
|
| (*pr)("%p is %p+%zu in POOL '%s' (%s)\n", |
|
| (void *)addr, item, (size_t)(addr - item), |
|
| pp->pr_wchan, |
|
| incpucache ? cpucachestr : |
|
| incache ? "cached" : allocated ? "allocated" : "free"); |
|
| } |
|
| } |
|
| #endif /* defined(DDB) */ |
|