| version 1.182, 2010/01/20 23:40:42 |
version 1.182.4.3, 2011/03/05 20:55:19 |
|
|
| /* $NetBSD$ */ |
/* $NetBSD$ */ |
| |
|
| /*- |
/*- |
| * Copyright (c) 1997, 1999, 2000, 2002, 2007, 2008 The NetBSD Foundation, Inc. |
* Copyright (c) 1997, 1999, 2000, 2002, 2007, 2008, 2010 |
| |
* The NetBSD Foundation, Inc. |
| * All rights reserved. |
* All rights reserved. |
| * |
* |
| * This code is derived from software contributed to The NetBSD Foundation |
* This code is derived from software contributed to The NetBSD Foundation |
| Line 53 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| Line 54 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| #include <sys/cpu.h> |
#include <sys/cpu.h> |
| #include <sys/atomic.h> |
#include <sys/atomic.h> |
| |
|
| #include <uvm/uvm.h> |
#include <uvm/uvm_extern.h> |
| |
#ifdef DIAGNOSTIC |
| |
#include <uvm/uvm_km.h> /* uvm_km_va_drain */ |
| |
#endif |
| |
|
| /* |
/* |
| * Pool resource management utility. |
* Pool resource management utility. |
| Line 561 pool_reclaim_register(struct pool *pp) |
|
| Line 565 pool_reclaim_register(struct pool *pp) |
|
| callback_register(&vm_map_to_kernel(map)->vmk_reclaim_callback, |
callback_register(&vm_map_to_kernel(map)->vmk_reclaim_callback, |
| &pp->pr_reclaimerentry, pp, pool_reclaim_callback); |
&pp->pr_reclaimerentry, pp, pool_reclaim_callback); |
| splx(s); |
splx(s); |
| |
|
| |
#ifdef DIAGNOSTIC |
| |
/* Diagnostic drain attempt. */ |
| |
uvm_km_va_drain(map, 0); |
| |
#endif |
| } |
} |
| |
|
| static void |
static void |
| Line 983 pool_get(struct pool *pp, int flags) |
|
| Line 992 pool_get(struct pool *pp, int flags) |
|
| void *v; |
void *v; |
| |
|
| #ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
| if (__predict_false(pp->pr_itemsperpage == 0)) |
if (pp->pr_itemsperpage == 0) |
| panic("pool_get: pool %p: pr_itemsperpage is zero, " |
panic("pool_get: pool '%s': pr_itemsperpage is zero, " |
| "pool not initialized?", pp); |
"pool not initialized?", pp->pr_wchan); |
| if (__predict_false(curlwp == NULL && doing_shutdown == 0 && |
if ((cpu_intr_p() || cpu_softintr_p()) && pp->pr_ipl == IPL_NONE && |
| (flags & PR_WAITOK) != 0)) |
!cold && panicstr == NULL) |
| panic("pool_get: %s: must have NOWAIT", pp->pr_wchan); |
panic("pool '%s' is IPL_NONE, but called from " |
| |
"interrupt context\n", pp->pr_wchan); |
| #endif /* DIAGNOSTIC */ |
#endif |
| #ifdef LOCKDEBUG |
|
| if (flags & PR_WAITOK) { |
if (flags & PR_WAITOK) { |
| ASSERT_SLEEPABLE(); |
ASSERT_SLEEPABLE(); |
| } |
} |
| #endif |
|
| |
|
| mutex_enter(&pp->pr_lock); |
mutex_enter(&pp->pr_lock); |
| pr_enter(pp, file, line); |
pr_enter(pp, file, line); |
| Line 1603 pool_sethardlimit(struct pool *pp, int n |
|
| Line 1610 pool_sethardlimit(struct pool *pp, int n |
|
| |
|
| /* |
/* |
| * Release all complete pages that have not been used recently. |
* Release all complete pages that have not been used recently. |
| |
* |
| |
* Might be called from interrupt context. |
| */ |
*/ |
| int |
int |
| #ifdef POOL_DIAGNOSTIC |
#ifdef POOL_DIAGNOSTIC |
| Line 1617 pool_reclaim(struct pool *pp) |
|
| Line 1626 pool_reclaim(struct pool *pp) |
|
| bool klock; |
bool klock; |
| int rv; |
int rv; |
| |
|
| |
if (cpu_intr_p() || cpu_softintr_p()) { |
| |
KASSERT(pp->pr_ipl != IPL_NONE); |
| |
} |
| |
|
| if (pp->pr_drain_hook != NULL) { |
if (pp->pr_drain_hook != NULL) { |
| /* |
/* |
| * The drain hook must be called with the pool unlocked. |
* The drain hook must be called with the pool unlocked. |
| Line 1735 pool_drain_start(struct pool **ppp, uint |
|
| Line 1748 pool_drain_start(struct pool **ppp, uint |
|
| } |
} |
| } |
} |
| |
|
| void |
bool |
| pool_drain_end(struct pool *pp, uint64_t where) |
pool_drain_end(struct pool *pp, uint64_t where) |
| { |
{ |
| |
bool reclaimed; |
| |
|
| if (pp == NULL) |
if (pp == NULL) |
| return; |
return false; |
| |
|
| KASSERT(pp->pr_refcnt > 0); |
KASSERT(pp->pr_refcnt > 0); |
| |
|
| Line 1749 pool_drain_end(struct pool *pp, uint64_t |
|
| Line 1763 pool_drain_end(struct pool *pp, uint64_t |
|
| xc_wait(where); |
xc_wait(where); |
| |
|
| /* Drain the cache (if any) and pool.. */ |
/* Drain the cache (if any) and pool.. */ |
| pool_reclaim(pp); |
reclaimed = pool_reclaim(pp); |
| |
|
| /* Finally, unlock the pool. */ |
/* Finally, unlock the pool. */ |
| mutex_enter(&pool_head_lock); |
mutex_enter(&pool_head_lock); |
| pp->pr_refcnt--; |
pp->pr_refcnt--; |
| cv_broadcast(&pool_busy); |
cv_broadcast(&pool_busy); |
| mutex_exit(&pool_head_lock); |
mutex_exit(&pool_head_lock); |
| |
|
| |
return reclaimed; |
| } |
} |
| |
|
| /* |
/* |
| Line 1904 pool_print1(struct pool *pp, const char |
|
| Line 1920 pool_print1(struct pool *pp, const char |
|
| if (pc != NULL) { |
if (pc != NULL) { |
| cpuhit = 0; |
cpuhit = 0; |
| cpumiss = 0; |
cpumiss = 0; |
| for (i = 0; i < MAXCPUS; i++) { |
for (i = 0; i < __arraycount(pc->pc_cpus); i++) { |
| if ((cc = pc->pc_cpus[i]) == NULL) |
if ((cc = pc->pc_cpus[i]) == NULL) |
| continue; |
continue; |
| cpuhit += cc->cc_hits; |
cpuhit += cc->cc_hits; |
| Line 2158 pool_cache_destroy(pool_cache_t pc) |
|
| Line 2174 pool_cache_destroy(pool_cache_t pc) |
|
| mutex_exit(&pp->pr_lock); |
mutex_exit(&pp->pr_lock); |
| |
|
| /* Destroy per-CPU data */ |
/* Destroy per-CPU data */ |
| for (i = 0; i < MAXCPUS; i++) |
for (i = 0; i < __arraycount(pc->pc_cpus); i++) |
| pool_cache_invalidate_cpu(pc, i); |
pool_cache_invalidate_cpu(pc, i); |
| |
|
| /* Finally, destroy it. */ |
/* Finally, destroy it. */ |
| Line 2180 pool_cache_cpu_init1(struct cpu_info *ci |
|
| Line 2196 pool_cache_cpu_init1(struct cpu_info *ci |
|
| |
|
| index = ci->ci_index; |
index = ci->ci_index; |
| |
|
| KASSERT(index < MAXCPUS); |
KASSERT(index < __arraycount(pc->pc_cpus)); |
| |
|
| if ((cc = pc->pc_cpus[index]) != NULL) { |
if ((cc = pc->pc_cpus[index]) != NULL) { |
| KASSERT(cc->cc_cpuindex == index); |
KASSERT(cc->cc_cpuindex == index); |
| Line 2519 pool_cache_get_paddr(pool_cache_t pc, in |
|
| Line 2535 pool_cache_get_paddr(pool_cache_t pc, in |
|
| void *object; |
void *object; |
| int s; |
int s; |
| |
|
| #ifdef LOCKDEBUG |
KASSERTMSG((!cpu_intr_p() && !cpu_softintr_p()) || |
| |
(pc->pc_pool.pr_ipl != IPL_NONE || cold || panicstr != NULL), |
| |
("pool '%s' is IPL_NONE, but called from interrupt context\n", |
| |
pc->pc_pool.pr_wchan)); |
| |
|
| if (flags & PR_WAITOK) { |
if (flags & PR_WAITOK) { |
| ASSERT_SLEEPABLE(); |
ASSERT_SLEEPABLE(); |
| } |
} |
| #endif |
|
| |
|
| /* Lock out interrupts and disable preemption. */ |
/* Lock out interrupts and disable preemption. */ |
| s = splvm(); |
s = splvm(); |
|
|
| goto print; |
goto print; |
| } |
} |
| } |
} |
| for (i = 0; i < MAXCPUS; i++) { |
for (i = 0; i < __arraycount(pc->pc_cpus); i++) { |
| pool_cache_cpu_t *cc; |
pool_cache_cpu_t *cc; |
| |
|
| if ((cc = pc->pc_cpus[i]) == NULL) { |
if ((cc = pc->pc_cpus[i]) == NULL) { |