| version 1.133.4.4, 2008/02/18 21:06:47 |
version 1.134, 2007/11/07 00:23:23 |
|
|
| #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" |
| |
|
| #include <sys/param.h> |
#include <sys/param.h> |
| #include <sys/systm.h> |
#include <sys/systm.h> |
| #include <sys/bitops.h> |
|
| #include <sys/proc.h> |
#include <sys/proc.h> |
| #include <sys/errno.h> |
#include <sys/errno.h> |
| #include <sys/kernel.h> |
#include <sys/kernel.h> |
| #include <sys/malloc.h> |
#include <sys/malloc.h> |
| |
#include <sys/lock.h> |
| #include <sys/pool.h> |
#include <sys/pool.h> |
| #include <sys/syslog.h> |
#include <sys/syslog.h> |
| #include <sys/debug.h> |
#include <sys/debug.h> |
| #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 76 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| Line 74 __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 |
| static struct pool phpool[PHPOOL_MAX]; |
static struct pool phpool[PHPOOL_MAX]; |
| #define PHPOOL_FREELIST_NELEM(idx) \ |
#define PHPOOL_FREELIST_NELEM(idx) (((idx) == 0) ? 0 : (1 << (idx))) |
| (((idx) == 0) ? 0 : BITMAP_SIZE * (1 << (idx))) |
|
| |
|
| #ifdef POOL_SUBPAGE |
#ifdef POOL_SUBPAGE |
| /* Pool of subpages for use by normal pools. */ |
/* Pool of subpages for use by normal pools. */ |
| Line 111 static struct pool *drainpp; |
|
| Line 112 static struct pool *drainpp; |
|
| static kmutex_t pool_head_lock; |
static kmutex_t pool_head_lock; |
| static kcondvar_t pool_busy; |
static kcondvar_t pool_busy; |
| |
|
| typedef uint32_t pool_item_bitmap_t; |
typedef uint8_t pool_item_freelist_t; |
| #define BITMAP_SIZE (CHAR_BIT * sizeof(pool_item_bitmap_t)) |
|
| #define BITMAP_MASK (BITMAP_SIZE - 1) |
|
| |
|
| struct pool_item_header { |
struct pool_item_header { |
| /* Page headers */ |
/* Page headers */ |
| Line 122 struct pool_item_header { |
|
| Line 121 struct pool_item_header { |
|
| SPLAY_ENTRY(pool_item_header) |
SPLAY_ENTRY(pool_item_header) |
| ph_node; /* Off-page page headers */ |
ph_node; /* Off-page page headers */ |
| void * ph_page; /* this page's address */ |
void * ph_page; /* this page's address */ |
| uint32_t ph_time; /* last referenced */ |
struct timeval ph_time; /* last referenced */ |
| 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 133 struct pool_item_header { |
|
| Line 130 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_freelist_t |
| |
phu_firstfree; /* first free item */ |
| |
/* |
| |
* XXX it might be better to use |
| |
* a simple bitmap and ffs(3) |
| |
*/ |
| } phu_notouch; |
} phu_notouch; |
| } ph_u; |
} ph_u; |
| |
uint16_t ph_nmissing; /* # of chunks in use */ |
| }; |
}; |
| #define ph_itemlist ph_u.phu_normal.phu_itemlist |
#define ph_itemlist ph_u.phu_normal.phu_itemlist |
| #define ph_bitmap ph_u.phu_notouch.phu_bitmap |
#define ph_off ph_u.phu_notouch.phu_off |
| |
#define ph_firstfree ph_u.phu_notouch.phu_firstfree |
| |
|
| struct pool_item { |
struct pool_item { |
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| Line 177 struct pool_item { |
|
| Line 183 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 332 pr_enter_check(struct pool *pp, void (*p |
|
| Line 330 pr_enter_check(struct pool *pp, void (*p |
|
| #define pr_enter_check(pp, pr) |
#define pr_enter_check(pp, pr) |
| #endif /* POOL_DIAGNOSTIC */ |
#endif /* POOL_DIAGNOSTIC */ |
| |
|
| static inline unsigned int |
static inline int |
| pr_item_notouch_index(const struct pool *pp, const struct pool_item_header *ph, |
pr_item_notouch_index(const struct pool *pp, const struct pool_item_header *ph, |
| const void *v) |
const void *v) |
| { |
{ |
| const char *cp = v; |
const char *cp = v; |
| unsigned int idx; |
int idx; |
| |
|
| KASSERT(pp->pr_roflags & PR_NOTOUCH); |
KASSERT(pp->pr_roflags & PR_NOTOUCH); |
| idx = (cp - (char *)ph->ph_page - ph->ph_off) / pp->pr_size; |
idx = (cp - (char *)ph->ph_page - ph->ph_off) / pp->pr_size; |
| Line 345 pr_item_notouch_index(const struct pool |
|
| Line 343 pr_item_notouch_index(const struct pool |
|
| return idx; |
return idx; |
| } |
} |
| |
|
| |
#define PR_FREELIST_ALIGN(p) \ |
| |
roundup((uintptr_t)(p), sizeof(pool_item_freelist_t)) |
| |
#define PR_FREELIST(ph) ((pool_item_freelist_t *)PR_FREELIST_ALIGN((ph) + 1)) |
| |
#define PR_INDEX_USED ((pool_item_freelist_t)-1) |
| |
#define PR_INDEX_EOL ((pool_item_freelist_t)-2) |
| |
|
| static inline void |
static inline void |
| pr_item_notouch_put(const struct pool *pp, struct pool_item_header *ph, |
pr_item_notouch_put(const struct pool *pp, struct pool_item_header *ph, |
| void *obj) |
void *obj) |
| { |
{ |
| unsigned int idx = pr_item_notouch_index(pp, ph, obj); |
int idx = pr_item_notouch_index(pp, ph, obj); |
| pool_item_bitmap_t *bitmap = ph->ph_bitmap + (idx / BITMAP_SIZE); |
pool_item_freelist_t *freelist = PR_FREELIST(ph); |
| pool_item_bitmap_t mask = 1 << (idx & BITMAP_MASK); |
|
| |
|
| KASSERT((*bitmap & mask) == 0); |
KASSERT(freelist[idx] == PR_INDEX_USED); |
| *bitmap |= mask; |
freelist[idx] = ph->ph_firstfree; |
| |
ph->ph_firstfree = idx; |
| } |
} |
| |
|
| static inline void * |
static inline void * |
| pr_item_notouch_get(const struct pool *pp, struct pool_item_header *ph) |
pr_item_notouch_get(const struct pool *pp, struct pool_item_header *ph) |
| { |
{ |
| pool_item_bitmap_t *bitmap = ph->ph_bitmap; |
int idx = ph->ph_firstfree; |
| unsigned int idx; |
pool_item_freelist_t *freelist = PR_FREELIST(ph); |
| int i; |
|
| |
|
| for (i = 0; ; i++) { |
KASSERT(freelist[idx] != PR_INDEX_USED); |
| int bit; |
ph->ph_firstfree = freelist[idx]; |
| |
freelist[idx] = PR_INDEX_USED; |
| |
|
| KASSERT((i * BITMAP_SIZE) < pp->pr_itemsperpage); |
|
| bit = ffs32(bitmap[i]); |
|
| if (bit) { |
|
| pool_item_bitmap_t mask; |
|
| |
|
| bit--; |
|
| idx = (i * BITMAP_SIZE) + bit; |
|
| mask = 1 << bit; |
|
| KASSERT((bitmap[i] & mask) != 0); |
|
| bitmap[i] &= ~mask; |
|
| break; |
|
| } |
|
| } |
|
| KASSERT(idx < pp->pr_itemsperpage); |
|
| return (char *)ph->ph_page + ph->ph_off + idx * pp->pr_size; |
return (char *)ph->ph_page + ph->ph_off + idx * pp->pr_size; |
| } |
} |
| |
|
| static inline void |
|
| pr_item_notouch_init(const struct pool *pp, struct pool_item_header *ph) |
|
| { |
|
| pool_item_bitmap_t *bitmap = ph->ph_bitmap; |
|
| const int n = howmany(pp->pr_itemsperpage, BITMAP_SIZE); |
|
| int i; |
|
| |
|
| for (i = 0; i < n; i++) { |
|
| bitmap[i] = (pool_item_bitmap_t)-1; |
|
| } |
|
| } |
|
| |
|
| static inline int |
static inline int |
| phtree_compare(struct pool_item_header *a, struct pool_item_header *b) |
phtree_compare(struct pool_item_header *a, struct pool_item_header *b) |
| { |
{ |
| Line 416 phtree_compare(struct pool_item_header * |
|
| Line 394 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 443 pr_find_pagehead(struct pool *pp, void * |
|
| Line 403 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; |
| |
|
| |
KASSERT((1UL << (CHAR_BIT * sizeof(pool_item_freelist_t))) - 2 >= |
| |
PHPOOL_FREELIST_NELEM(PHPOOL_MAX - 1)); |
| |
|
| #ifdef DEBUG |
#ifdef DEBUG |
| /* |
/* |
| * 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 814 pool_init(struct pool *pp, size_t size, |
|
| Line 787 pool_init(struct pool *pp, size_t size, |
|
| pp->pr_entered_file = NULL; |
pp->pr_entered_file = NULL; |
| pp->pr_entered_line = 0; |
pp->pr_entered_line = 0; |
| |
|
| /* |
mutex_init(&pp->pr_lock, MUTEX_DEFAULT, ipl); |
| * XXXAD hack to prevent IP input processing from blocking. |
|
| */ |
|
| if (ipl == IPL_SOFTNET) { |
|
| mutex_init(&pp->pr_lock, MUTEX_DEFAULT, IPL_VM); |
|
| } else { |
|
| mutex_init(&pp->pr_lock, MUTEX_DEFAULT, ipl); |
|
| } |
|
| cv_init(&pp->pr_cv, wchan); |
cv_init(&pp->pr_cv, wchan); |
| pp->pr_ipl = ipl; |
pp->pr_ipl = ipl; |
| |
|
| Line 842 pool_init(struct pool *pp, size_t size, |
|
| Line 808 pool_init(struct pool *pp, size_t size, |
|
| "phpool-%d", nelem); |
"phpool-%d", nelem); |
| sz = sizeof(struct pool_item_header); |
sz = sizeof(struct pool_item_header); |
| if (nelem) { |
if (nelem) { |
| sz = offsetof(struct pool_item_header, |
sz = PR_FREELIST_ALIGN(sz) |
| ph_bitmap[howmany(nelem, BITMAP_SIZE)]); |
+ nelem * sizeof(pool_item_freelist_t); |
| } |
} |
| pool_init(&phpool[idx], sz, 0, 0, 0, |
pool_init(&phpool[idx], sz, 0, 0, 0, |
| phpool_names[idx], &pool_allocator_meta, IPL_VM); |
phpool_names[idx], &pool_allocator_meta, IPL_VM); |
| Line 852 pool_init(struct pool *pp, size_t size, |
|
| Line 818 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 901 pool_destroy(struct pool *pp) |
|
| Line 853 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 1300 pool_do_put(struct pool *pp, void *v, st |
|
| Line 1252 pool_do_put(struct pool *pp, void *v, st |
|
| * be idle for some period of time before it can |
* be idle for some period of time before it can |
| * be reclaimed by the pagedaemon. This minimizes |
* be reclaimed by the pagedaemon. This minimizes |
| * ping-pong'ing for memory. |
* ping-pong'ing for memory. |
| * |
|
| * note for 64-bit time_t: truncating to 32-bit is not |
|
| * a problem for our usage. |
|
| */ |
*/ |
| ph->ph_time = time_uptime; |
getmicrotime(&ph->ph_time); |
| } |
} |
| pool_update_curpage(pp); |
pool_update_curpage(pp); |
| } |
} |
| Line 1456 pool_prime_page(struct pool *pp, void *s |
|
| Line 1405 pool_prime_page(struct pool *pp, void *s |
|
| LIST_INIT(&ph->ph_itemlist); |
LIST_INIT(&ph->ph_itemlist); |
| ph->ph_page = storage; |
ph->ph_page = storage; |
| ph->ph_nmissing = 0; |
ph->ph_nmissing = 0; |
| ph->ph_time = time_uptime; |
getmicrotime(&ph->ph_time); |
| if ((pp->pr_roflags & PR_PHINPAGE) == 0) |
if ((pp->pr_roflags & PR_PHINPAGE) == 0) |
| SPLAY_INSERT(phtree, &pp->pr_phtree, ph); |
SPLAY_INSERT(phtree, &pp->pr_phtree, ph); |
| |
|
| Line 1465 pool_prime_page(struct pool *pp, void *s |
|
| Line 1414 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 1485 pool_prime_page(struct pool *pp, void *s |
|
| Line 1433 pool_prime_page(struct pool *pp, void *s |
|
| pp->pr_nitems += n; |
pp->pr_nitems += n; |
| |
|
| if (pp->pr_roflags & PR_NOTOUCH) { |
if (pp->pr_roflags & PR_NOTOUCH) { |
| pr_item_notouch_init(pp, ph); |
pool_item_freelist_t *freelist = PR_FREELIST(ph); |
| |
int i; |
| |
|
| |
ph->ph_off = (char *)cp - (char *)storage; |
| |
ph->ph_firstfree = 0; |
| |
for (i = 0; i < n - 1; i++) |
| |
freelist[i] = i + 1; |
| |
freelist[n - 1] = PR_INDEX_EOL; |
| } else { |
} else { |
| while (n--) { |
while (n--) { |
| pi = (struct pool_item *)cp; |
pi = (struct pool_item *)cp; |
| Line 1617 pool_reclaim(struct pool *pp) |
|
| Line 1572 pool_reclaim(struct pool *pp) |
|
| { |
{ |
| struct pool_item_header *ph, *phnext; |
struct pool_item_header *ph, *phnext; |
| struct pool_pagelist pq; |
struct pool_pagelist pq; |
| uint32_t curtime; |
struct timeval curtime, diff; |
| bool klock; |
bool klock; |
| int rv; |
int rv; |
| |
|
| Line 1654 pool_reclaim(struct pool *pp) |
|
| Line 1609 pool_reclaim(struct pool *pp) |
|
| |
|
| LIST_INIT(&pq); |
LIST_INIT(&pq); |
| |
|
| curtime = time_uptime; |
getmicrotime(&curtime); |
| |
|
| for (ph = LIST_FIRST(&pp->pr_emptypages); ph != NULL; ph = phnext) { |
for (ph = LIST_FIRST(&pp->pr_emptypages); ph != NULL; ph = phnext) { |
| phnext = LIST_NEXT(ph, ph_pagelist); |
phnext = LIST_NEXT(ph, ph_pagelist); |
| Line 1664 pool_reclaim(struct pool *pp) |
|
| Line 1619 pool_reclaim(struct pool *pp) |
|
| break; |
break; |
| |
|
| KASSERT(ph->ph_nmissing == 0); |
KASSERT(ph->ph_nmissing == 0); |
| if (curtime - ph->ph_time < pool_inactive_time |
timersub(&curtime, &ph->ph_time, &diff); |
| |
if (diff.tv_sec < pool_inactive_time |
| && !pa_starved_p(pp->pr_alloc)) |
&& !pa_starved_p(pp->pr_alloc)) |
| continue; |
continue; |
| |
|
| Line 1710 pool_drain_start(struct pool **ppp, uint |
|
| Line 1666 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 1718 pool_drain_start(struct pool **ppp, uint |
|
| Line 1674 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 1778 pool_printall(const char *modif, void (* |
|
| Line 1734 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 1805 pool_print_pagelist(struct pool *pp, str |
|
| Line 1761 pool_print_pagelist(struct pool *pp, str |
|
| #endif |
#endif |
| |
|
| LIST_FOREACH(ph, pl, ph_pagelist) { |
LIST_FOREACH(ph, pl, ph_pagelist) { |
| (*pr)("\t\tpage %p, nmissing %d, time %" PRIu32 "\n", |
(*pr)("\t\tpage %p, nmissing %d, time %lu,%lu\n", |
| ph->ph_page, ph->ph_nmissing, ph->ph_time); |
ph->ph_page, ph->ph_nmissing, |
| |
(u_long)ph->ph_time.tv_sec, |
| |
(u_long)ph->ph_time.tv_usec); |
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| if (!(pp->pr_roflags & PR_NOTOUCH)) { |
if (!(pp->pr_roflags & PR_NOTOUCH)) { |
| LIST_FOREACH(pi, &ph->ph_itemlist, pi_list) { |
LIST_FOREACH(pi, &ph->ph_itemlist, pi_list) { |
| Line 1893 pool_print1(struct pool *pp, const char |
|
| Line 1851 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 2066 pool_cache_bootstrap(pool_cache_t pc, si |
|
| Line 2024 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 2075 pool_cache_bootstrap(pool_cache_t pc, si |
|
| Line 2032 pool_cache_bootstrap(pool_cache_t pc, si |
|
| palloc = &pool_allocator_nointr; |
palloc = &pool_allocator_nointr; |
| pool_init(pp, size, align, align_offset, flags, wchan, palloc, ipl); |
pool_init(pp, size, align, align_offset, flags, wchan, palloc, ipl); |
| |
|
| /* |
mutex_init(&pc->pc_lock, MUTEX_DEFAULT, pp->pr_ipl); |
| * XXXAD hack to prevent IP input processing from blocking. |
|
| */ |
|
| if (ipl == IPL_SOFTNET) { |
|
| mutex_init(&pc->pc_lock, MUTEX_DEFAULT, IPL_VM); |
|
| } else { |
|
| mutex_init(&pc->pc_lock, MUTEX_DEFAULT, ipl); |
|
| } |
|
| |
|
| if (ctor == NULL) { |
if (ctor == NULL) { |
| ctor = (int (*)(void *, void *, int))nullop; |
ctor = (int (*)(void *, void *, int))nullop; |
| Line 2104 pool_cache_bootstrap(pool_cache_t pc, si |
|
| Line 2054 pool_cache_bootstrap(pool_cache_t pc, si |
|
| pc->pc_nfull = 0; |
pc->pc_nfull = 0; |
| pc->pc_contended = 0; |
pc->pc_contended = 0; |
| pc->pc_refcnt = 0; |
pc->pc_refcnt = 0; |
| 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) { |
for (CPU_INFO_FOREACH(cii, ci)) { |
| /* XXX For sparc: boot CPU is not attached yet. */ |
pool_cache_cpu_init1(ci, pc); |
| pool_cache_cpu_init1(curcpu(), pc); |
|
| } else { |
|
| for (CPU_INFO_FOREACH(cii, ci)) { |
|
| 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 2159 pool_cache_destroy(pool_cache_t pc) |
|
| Line 2092 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. */ |
|
|
| pool_cache_cpu_init1(struct cpu_info *ci, pool_cache_t pc) |
pool_cache_cpu_init1(struct cpu_info *ci, pool_cache_t pc) |
| { |
{ |
| pool_cache_cpu_t *cc; |
pool_cache_cpu_t *cc; |
| int index; |
|
| |
|
| index = ci->ci_index; |
|
| |
|
| KASSERT(index < MAXCPUS); |
|
| KASSERT(((uintptr_t)pc->pc_cpus & (CACHE_LINE_SIZE - 1)) == 0); |
KASSERT(((uintptr_t)pc->pc_cpus & (CACHE_LINE_SIZE - 1)) == 0); |
| |
|
| if ((cc = pc->pc_cpus[index]) != NULL) { |
if ((cc = pc->pc_cpus[ci->ci_index]) != NULL) { |
| KASSERT(cc->cc_cpuindex == index); |
KASSERT(cc->cc_cpu = ci); |
| return; |
return; |
| } |
} |
| |
|
| Line 2230 pool_cache_cpu_init1(struct cpu_info *ci |
|
| Line 2159 pool_cache_cpu_init1(struct cpu_info *ci |
|
| cc->cc_ipl = pc->pc_pool.pr_ipl; |
cc->cc_ipl = pc->pc_pool.pr_ipl; |
| cc->cc_iplcookie = makeiplcookie(cc->cc_ipl); |
cc->cc_iplcookie = makeiplcookie(cc->cc_ipl); |
| cc->cc_cache = pc; |
cc->cc_cache = pc; |
| cc->cc_cpuindex = index; |
cc->cc_cpu = ci; |
| cc->cc_hits = 0; |
cc->cc_hits = 0; |
| cc->cc_misses = 0; |
cc->cc_misses = 0; |
| cc->cc_current = NULL; |
cc->cc_current = NULL; |
| cc->cc_previous = NULL; |
cc->cc_previous = NULL; |
| |
|
| pc->pc_cpus[index] = cc; |
pc->pc_cpus[ci->ci_index] = cc; |
| } |
} |
| |
|
| /* |
/* |
| Line 2250 pool_cache_cpu_init(struct cpu_info *ci) |
|
| Line 2179 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 2275 pool_cache_reclaim(pool_cache_t pc) |
|
| Line 2204 pool_cache_reclaim(pool_cache_t pc) |
|
| return pool_reclaim(&pc->pc_pool); |
return pool_reclaim(&pc->pc_pool); |
| } |
} |
| |
|
| static void |
|
| pool_cache_destruct_object1(pool_cache_t pc, void *object) |
|
| { |
|
| |
|
| (*pc->pc_dtor)(pc->pc_arg, object); |
|
| pool_put(&pc->pc_pool, object); |
|
| } |
|
| |
|
| /* |
/* |
| * pool_cache_destruct_object: |
* pool_cache_destruct_object: |
| * |
* |
|
|
| pool_cache_destruct_object(pool_cache_t pc, void *object) |
pool_cache_destruct_object(pool_cache_t pc, void *object) |
| { |
{ |
| |
|
| FREECHECK_IN(&pc->pc_freecheck, object); |
(*pc->pc_dtor)(pc->pc_arg, object); |
| |
pool_put(&pc->pc_pool, object); |
| pool_cache_destruct_object1(pc, object); |
|
| } |
} |
| |
|
| /* |
/* |
| Line 2315 pool_cache_invalidate_groups(pool_cache_ |
|
| Line 2235 pool_cache_invalidate_groups(pool_cache_ |
|
| |
|
| for (i = 0; i < pcg->pcg_avail; i++) { |
for (i = 0; i < pcg->pcg_avail; i++) { |
| object = pcg->pcg_objects[i].pcgo_va; |
object = pcg->pcg_objects[i].pcgo_va; |
| pool_cache_destruct_object1(pc, object); |
pool_cache_destruct_object(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 2387 static inline pool_cache_cpu_t * |
|
| Line 2302 static inline pool_cache_cpu_t * |
|
| pool_cache_cpu_enter(pool_cache_t pc, int *s) |
pool_cache_cpu_enter(pool_cache_t pc, int *s) |
| { |
{ |
| pool_cache_cpu_t *cc; |
pool_cache_cpu_t *cc; |
| |
struct cpu_info *ci; |
| |
|
| /* |
/* |
| * Prevent other users of the cache from accessing our |
* Prevent other users of the cache from accessing our |
| * CPU-local data. To avoid touching shared state, we |
* CPU-local data. To avoid touching shared state, we |
| * pull the neccessary information from CPU local data. |
* pull the neccessary information from CPU local data. |
| */ |
*/ |
| crit_enter(); |
ci = curcpu(); |
| cc = pc->pc_cpus[curcpu()->ci_index]; |
KASSERT(ci->ci_data.cpu_index < MAXCPUS); |
| |
cc = pc->pc_cpus[ci->ci_data.cpu_index]; |
| KASSERT(cc->cc_cache == pc); |
KASSERT(cc->cc_cache == pc); |
| if (cc->cc_ipl != IPL_NONE) { |
if (cc->cc_ipl == IPL_NONE) { |
| |
crit_enter(); |
| |
} else { |
| *s = splraiseipl(cc->cc_iplcookie); |
*s = splraiseipl(cc->cc_iplcookie); |
| } |
} |
| |
|
| |
/* Moved to another CPU before disabling preemption? */ |
| |
if (__predict_false(ci != curcpu())) { |
| |
ci = curcpu(); |
| |
cc = pc->pc_cpus[ci->ci_data.cpu_index]; |
| |
} |
| |
|
| |
#ifdef DIAGNOSTIC |
| |
KASSERT(cc->cc_cpu == ci); |
| KASSERT(((uintptr_t)cc & (CACHE_LINE_SIZE - 1)) == 0); |
KASSERT(((uintptr_t)cc & (CACHE_LINE_SIZE - 1)) == 0); |
| |
#endif |
| |
|
| return cc; |
return cc; |
| } |
} |
| Line 2409 pool_cache_cpu_exit(pool_cache_cpu_t *cc |
|
| Line 2338 pool_cache_cpu_exit(pool_cache_cpu_t *cc |
|
| { |
{ |
| |
|
| /* No longer need exclusive access to the per-CPU data. */ |
/* No longer need exclusive access to the per-CPU data. */ |
| if (cc->cc_ipl != IPL_NONE) { |
if (cc->cc_ipl == IPL_NONE) { |
| |
crit_exit(); |
| |
} else { |
| splx(*s); |
splx(*s); |
| } |
} |
| crit_exit(); |
|
| } |
} |
| |
|
| #if __GNUC_PREREQ__(3, 0) |
#if __GNUC_PREREQ__(3, 0) |
| Line 2463 pool_cache_get_slow(pool_cache_cpu_t *cc |
|
| Line 2393 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 2534 pool_cache_get_paddr(pool_cache_t pc, in |
|
| Line 2464 pool_cache_get_paddr(pool_cache_t pc, in |
|
| object = pcg->pcg_objects[--pcg->pcg_avail].pcgo_va; |
object = pcg->pcg_objects[--pcg->pcg_avail].pcgo_va; |
| if (pap != NULL) |
if (pap != NULL) |
| *pap = pcg->pcg_objects[pcg->pcg_avail].pcgo_pa; |
*pap = pcg->pcg_objects[pcg->pcg_avail].pcgo_pa; |
| #if defined(DIAGNOSTIC) |
|
| pcg->pcg_objects[pcg->pcg_avail].pcgo_va = NULL; |
pcg->pcg_objects[pcg->pcg_avail].pcgo_va = NULL; |
| #endif /* defined(DIAGNOSTIC) */ |
KASSERT(pcg->pcg_avail <= PCG_NOBJECTS); |
| KASSERT(pcg->pcg_avail <= pcg->pcg_size); |
|
| 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 2577 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| Line 2505 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 2607 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| Line 2534 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 2641 pool_cache_put_slow(pool_cache_cpu_t *cc |
|
| Line 2564 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 2687 pool_cache_put_paddr(pool_cache_t pc, vo |
|
| Line 2606 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 2745 pool_cache_xcall(pool_cache_t pc) |
|
| Line 2666 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 2759 pool_cache_xcall(pool_cache_t pc) |
|
| Line 2680 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 2939 pool_page_free_nointr(struct pool *pp, v |
|
| Line 2860 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) */ |
|