/*
- * Copyright (c) 2006-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2006-2015 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef _SYS_MCACHE_H
#include <sys/types.h>
#include <sys/queue.h>
#include <mach/boolean.h>
+#include <mach/branch_predicates.h>
#include <kern/locks.h>
+#include <libkern/OSAtomic.h>
#ifdef ASSERT
#undef ASSERT
/*
* Unlike VERIFY(), ASSERT() is evaluated only in DEBUG build.
*/
-#define VERIFY(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__)))
+#define VERIFY(EX) \
+ ((void)(__probable((EX)) || assfail(#EX, __FILE__, __LINE__)))
#if DEBUG
#define ASSERT(EX) VERIFY(EX)
#else
#define ASSERT(EX) ((void)0)
#endif
-#if defined(__ppc__)
-#define CPU_CACHE_SIZE 128
+/*
+ * Compile time assert; this should be on its own someday.
+ */
+#define _CASSERT(x) _Static_assert(x, "compile-time assertion failed")
+
+/*
+ * Atomic macros; these should be on their own someday.
+ */
+#define atomic_add_16_ov(a, n) \
+ ((u_int16_t) OSAddAtomic16(n, (volatile SInt16 *)a))
+
+#define atomic_add_16(a, n) \
+ ((void) atomic_add_16_ov(a, n))
+
+#define atomic_add_32_ov(a, n) \
+ ((u_int32_t) OSAddAtomic(n, (volatile SInt32 *)a))
+
+#define atomic_add_32(a, n) \
+ ((void) atomic_add_32_ov(a, n))
+
+#define atomic_add_64_ov(a, n) \
+ ((u_int64_t) OSAddAtomic64(n, (volatile SInt64 *)a))
+
+#define atomic_add_64(a, n) \
+ ((void) atomic_add_64_ov(a, n))
+
+#define atomic_test_set_32(a, o, n) \
+ OSCompareAndSwap(o, n, (volatile UInt32 *)a)
+
+#define atomic_set_32(a, n) do { \
+ while (!atomic_test_set_32(a, *a, n)) \
+ ; \
+} while (0)
+
+#define atomic_test_set_64(a, o, n) \
+ OSCompareAndSwap64(o, n, (volatile UInt64 *)a)
+
+#define atomic_set_64(a, n) do { \
+ while (!atomic_test_set_64(a, *a, n)) \
+ ; \
+} while (0)
+
+#if defined(__LP64__)
+#define atomic_get_64(n, a) do { \
+ (n) = *(a); \
+} while (0)
#else
-#define CPU_CACHE_SIZE 64
-#endif
+#define atomic_get_64(n, a) do { \
+ (n) = atomic_add_64_ov(a, 0); \
+} while (0)
+#endif /* __LP64__ */
+
+#define atomic_test_set_ptr(a, o, n) \
+ OSCompareAndSwapPtr(o, n, (void * volatile *)a)
+
+#define atomic_set_ptr(a, n) do { \
+ while (!atomic_test_set_ptr(a, *a, n)) \
+ ; \
+} while (0)
+
+#define atomic_or_8_ov(a, n) \
+ ((u_int8_t) OSBitOrAtomic8(n, (volatile UInt8 *)a))
+
+#define atomic_or_8(a, n) \
+ ((void) atomic_or_8_ov(a, n))
+
+#define atomic_bitset_8(a, n) \
+ atomic_or_8(a, n)
+
+#define atomic_or_16_ov(a, n) \
+ ((u_int16_t) OSBitOrAtomic16(n, (volatile UInt16 *)a))
+
+#define atomic_or_16(a, n) \
+ ((void) atomic_or_16_ov(a, n))
+
+#define atomic_bitset_16(a, n) \
+ atomic_or_16(a, n)
+
+#define atomic_or_32_ov(a, n) \
+ ((u_int32_t) OSBitOrAtomic(n, (volatile UInt32 *)a))
+
+#define atomic_or_32(a, n) \
+ ((void) atomic_or_32_ov(a, n))
+
+#define atomic_bitset_32(a, n) \
+ atomic_or_32(a, n)
+
+#define atomic_and_8_ov(a, n) \
+ ((u_int8_t) OSBitAndAtomic8(n, (volatile UInt8 *)a))
+
+#define atomic_and_8(a, n) \
+ ((void) atomic_and_8_ov(a, n))
+
+#define atomic_bitclear_8(a, n) \
+ atomic_and_8(a, ~(n))
+
+#define atomic_and_16_ov(a, n) \
+ ((u_int16_t) OSBitAndAtomic16(n, (volatile UInt16 *)a))
+
+#define atomic_and_16(a, n) \
+ ((void) atomic_and_16_ov(a, n))
+
+#define atomic_bitclear_16(a, n) \
+ atomic_and_16(a, ~(n))
+
+#define atomic_and_32_ov(a, n) \
+ ((u_int32_t) OSBitAndAtomic(n, (volatile UInt32 *)a))
+
+#define atomic_and_32(a, n) \
+ ((void) atomic_and_32_ov(a, n))
+
+#define atomic_bitclear_32(a, n) \
+ atomic_and_32(a, ~(n))
+
+#define membar_sync OSMemoryBarrier
+
+/*
+ * Use CPU_CACHE_LINE_SIZE instead of MAX_CPU_CACHE_LINE_SIZE, unless
+ * wasting space is of no concern.
+ */
+#define MAX_CPU_CACHE_LINE_SIZE 128
+#define CPU_CACHE_LINE_SIZE mcache_cache_line_size()
#ifndef IS_P2ALIGNED
#define IS_P2ALIGNED(v, a) \
#ifndef P2ROUNDUP
#define P2ROUNDUP(x, align) \
- (-(-((uintptr_t)(x)) & -(align)))
+ (-(-((uintptr_t)(x)) & -((uintptr_t)align)))
#endif /* P2ROUNDUP */
#ifndef P2ROUNDDOWN
int cc_objs; /* number of objects in filled bkt */
int cc_pobjs; /* number of objects in previous bkt */
int cc_bktsize; /* number of elements in a full bkt */
-} __attribute__((aligned(CPU_CACHE_SIZE), packed)) mcache_cpu_t;
+} __attribute__((aligned(MAX_CPU_CACHE_LINE_SIZE))) mcache_cpu_t;
typedef unsigned int (*mcache_allocfn_t)(void *, mcache_obj_t ***,
unsigned int, int);
typedef void (*mcache_freefn_t)(void *, mcache_obj_t *, boolean_t);
typedef void (*mcache_auditfn_t)(void *, mcache_obj_t *, boolean_t);
+typedef void (*mcache_logfn_t)(u_int32_t, mcache_obj_t *, boolean_t);
typedef void (*mcache_notifyfn_t)(void *, u_int32_t);
typedef struct mcache {
mcache_allocfn_t mc_slab_alloc; /* slab layer allocate callback */
mcache_freefn_t mc_slab_free; /* slab layer free callback */
mcache_auditfn_t mc_slab_audit; /* slab layer audit callback */
+ mcache_logfn_t mc_slab_log; /* slab layer log callback */
mcache_notifyfn_t mc_slab_notify; /* slab layer notify callback */
void *mc_private; /* opaque arg to callbacks */
size_t mc_bufsize; /* object size */
/*
* Per-CPU layer, aligned at cache line boundary
*/
- mcache_cpu_t mc_cpu[1];
+ mcache_cpu_t mc_cpu[1]
+ __attribute__((aligned(MAX_CPU_CACHE_LINE_SIZE)));
} mcache_t;
#define MCACHE_ALIGN 8 /* default guaranteed alignment */
/* Valid values for mc_flags */
#define MCF_VERIFY 0x00000001 /* enable verification */
-#define MCF_AUDIT 0x00000002 /* enable transaction auditing */
+#define MCF_TRACE 0x00000002 /* enable transaction auditing */
#define MCF_NOCPUCACHE 0x00000010 /* disable CPU layer caching */
+#define MCF_NOLEAKLOG 0x00000100 /* disable leak logging */
+#define MCF_EXPLEAKLOG 0x00000200 /* expose leak info to user space */
-#define MCF_DEBUG (MCF_VERIFY | MCF_AUDIT)
-#define MCF_FLAGS_MASK (MCF_DEBUG | MCF_NOCPUCACHE)
+#define MCF_DEBUG (MCF_VERIFY | MCF_TRACE)
+#define MCF_FLAGS_MASK \
+ (MCF_DEBUG | MCF_NOCPUCACHE | MCF_NOLEAKLOG | MCF_EXPLEAKLOG)
/* Valid values for notify callback */
#define MCN_RETRYALLOC 0x00000001 /* Allocation should be retried */
#define MCACHE_STACK_DEPTH 16
+#define MCA_TRN_MAX 2 /* Number of transactions to record */
+
typedef struct mcache_audit {
struct mcache_audit *mca_next; /* next audit struct */
void *mca_addr; /* address of buffer */
mcache_t *mca_cache; /* parent cache of the buffer */
- struct thread *mca_thread; /* thread doing transaction */
- struct thread *mca_pthread; /* previous transaction thread */
- size_t mca_contents_size; /* size of contents */
- void *mca_contents; /* contents at last free */
- uint16_t mca_depth; /* pc stack depth */
- uint16_t mca_pdepth; /* previous transaction pc stack */
- void *mca_stack[MCACHE_STACK_DEPTH];
- void *mca_pstack[MCACHE_STACK_DEPTH];
+ size_t mca_contents_size; /* size of saved contents */
+ void *mca_contents; /* user-specific saved contents */
void *mca_uptr; /* user-specific pointer */
uint32_t mca_uflags; /* user-specific flags */
+ uint32_t mca_next_trn;
+ struct mca_trn {
+ struct thread *mca_thread; /* thread doing transaction */
+ uint32_t mca_tstamp;
+ uint16_t mca_depth;
+ void *mca_stack[MCACHE_STACK_DEPTH];
+ } mca_trns[MCA_TRN_MAX];
} mcache_audit_t;
__private_extern__ int assfail(const char *, const char *, int);
__private_extern__ void mcache_init(void);
__private_extern__ unsigned int mcache_getflags(void);
+__private_extern__ unsigned int mcache_cache_line_size(void);
__private_extern__ mcache_t *mcache_create(const char *, size_t,
size_t, u_int32_t, int);
__private_extern__ void *mcache_alloc(mcache_t *, int);
__private_extern__ void mcache_free(mcache_t *, void *);
__private_extern__ mcache_t *mcache_create_ext(const char *, size_t,
- mcache_allocfn_t, mcache_freefn_t, mcache_auditfn_t, mcache_notifyfn_t,
- void *, u_int32_t, int);
+ mcache_allocfn_t, mcache_freefn_t, mcache_auditfn_t, mcache_logfn_t,
+ mcache_notifyfn_t, void *, u_int32_t, int);
__private_extern__ void mcache_destroy(mcache_t *);
__private_extern__ unsigned int mcache_alloc_ext(mcache_t *, mcache_obj_t **,
unsigned int, int);
__private_extern__ void mcache_free_ext(mcache_t *, mcache_obj_t *);
__private_extern__ void mcache_reap(void);
-__private_extern__ boolean_t mcache_purge_cache(mcache_t *);
+__private_extern__ boolean_t mcache_purge_cache(mcache_t *, boolean_t);
__private_extern__ void mcache_waiter_inc(mcache_t *);
__private_extern__ void mcache_waiter_dec(mcache_t *);
__private_extern__ boolean_t mcache_bkt_isempty(mcache_t *);
-__private_extern__ void mcache_buffer_log(mcache_audit_t *, void *, mcache_t *);
+__private_extern__ void mcache_buffer_log(mcache_audit_t *, void *, mcache_t *,
+ struct timeval *);
__private_extern__ void mcache_set_pattern(u_int64_t, void *, size_t);
__private_extern__ void *mcache_verify_pattern(u_int64_t, void *, size_t);
__private_extern__ void *mcache_verify_set_pattern(u_int64_t, u_int64_t,
__private_extern__ void mcache_audit_panic(mcache_audit_t *, void *, size_t,
int64_t, int64_t);
-__private_extern__ mcache_t *mcache_audit_cache;
+extern int32_t total_sbmb_cnt;
+extern int32_t total_sbmb_cnt_floor;
+extern int32_t total_sbmb_cnt_peak;
+extern int64_t sbmb_limreached;
+extern mcache_t *mcache_audit_cache;
#ifdef __cplusplus
}
projects / apple / xnu.git / blobdiff