/*
- * Copyright (c) 2006-2017 Apple Inc. All rights reserved.
+ * Copyright (c) 2006-2019 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef _SYS_MCACHE_H
-#define _SYS_MCACHE_H
+#define _SYS_MCACHE_H
#ifdef KERNEL_PRIVATE
#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>
/*
* Unlike VERIFY(), ASSERT() is evaluated only in DEBUG/DEVELOPMENT build.
*/
-#define VERIFY(EX) \
+#define VERIFY(EX) \
((void)(__probable((EX)) || assfail(#EX, __FILE__, __LINE__)))
#if (DEBUG || DEVELOPMENT)
-#define ASSERT(EX) VERIFY(EX)
+#define ASSERT(EX) VERIFY(EX)
#else
-#define ASSERT(EX) ((void)0)
+#define ASSERT(EX) ((void)0)
#endif
/*
* Compile time assert; this should be on its own someday.
*/
-#define _CASSERT(x) _Static_assert(x, "compile-time assertion failed")
+#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) \
+#define atomic_add_16_ov(a, n) \
((u_int16_t) OSAddAtomic16(n, (volatile SInt16 *)a))
-#define atomic_add_16(a, n) \
+#define atomic_add_16(a, n) \
((void) atomic_add_16_ov(a, n))
-#define atomic_add_32_ov(a, n) \
+#define atomic_add_32_ov(a, n) \
((u_int32_t) OSAddAtomic(n, (volatile SInt32 *)a))
-#define atomic_add_32(a, n) \
+#define atomic_add_32(a, n) \
((void) atomic_add_32_ov(a, n))
-#define atomic_add_64_ov(a, n) \
+#define atomic_add_64_ov(a, n) \
((u_int64_t) OSAddAtomic64(n, (volatile SInt64 *)a))
-#define atomic_add_64(a, n) \
+#define atomic_add_64(a, n) \
((void) atomic_add_64_ov(a, n))
-#define atomic_test_set_32(a, o, 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)) \
- ; \
+#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) \
+#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)) \
- ; \
+#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); \
+#define atomic_get_64(n, a) do { \
+ (n) = *(a); \
} while (0)
#else
-#define atomic_get_64(n, a) do { \
- (n) = atomic_add_64_ov(a, 0); \
+#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) \
+#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)) \
- ; \
+#define atomic_set_ptr(a, n) do { \
+ while (!atomic_test_set_ptr(a, *a, n)) \
+ ; \
} while (0)
-#define atomic_or_8_ov(a, n) \
+#define atomic_or_8_ov(a, n) \
((u_int8_t) OSBitOrAtomic8(n, (volatile UInt8 *)a))
-#define atomic_or_8(a, n) \
+#define atomic_or_8(a, n) \
((void) atomic_or_8_ov(a, n))
-#define atomic_bitset_8(a, n) \
+#define atomic_bitset_8(a, n) \
atomic_or_8(a, n)
-#define atomic_or_16_ov(a, n) \
+#define atomic_or_16_ov(a, n) \
((u_int16_t) OSBitOrAtomic16(n, (volatile UInt16 *)a))
-#define atomic_or_16(a, n) \
+#define atomic_or_16(a, n) \
((void) atomic_or_16_ov(a, n))
-#define atomic_bitset_16(a, n) \
+#define atomic_bitset_16(a, n) \
atomic_or_16(a, n)
-#define atomic_or_32_ov(a, n) \
+#define atomic_or_32_ov(a, n) \
((u_int32_t) OSBitOrAtomic(n, (volatile UInt32 *)a))
-#define atomic_or_32(a, n) \
+#define atomic_or_32(a, n) \
((void) atomic_or_32_ov(a, n))
-#define atomic_bitset_32(a, n) \
+#define atomic_bitset_32(a, n) \
atomic_or_32(a, n)
-#define atomic_bitset_32_ov(a, n) \
+#define atomic_bitset_32_ov(a, n) \
atomic_or_32_ov(a, n)
-#define atomic_and_8_ov(a, n) \
+#define atomic_and_8_ov(a, n) \
((u_int8_t) OSBitAndAtomic8(n, (volatile UInt8 *)a))
-#define atomic_and_8(a, n) \
+#define atomic_and_8(a, n) \
((void) atomic_and_8_ov(a, n))
-#define atomic_bitclear_8(a, n) \
+#define atomic_bitclear_8(a, n) \
atomic_and_8(a, ~(n))
-#define atomic_and_16_ov(a, n) \
+#define atomic_and_16_ov(a, n) \
((u_int16_t) OSBitAndAtomic16(n, (volatile UInt16 *)a))
-#define atomic_and_16(a, n) \
+#define atomic_and_16(a, n) \
((void) atomic_and_16_ov(a, n))
-#define atomic_bitclear_16(a, n) \
+#define atomic_bitclear_16(a, n) \
atomic_and_16(a, ~(n))
-#define atomic_and_32_ov(a, n) \
+#define atomic_and_32_ov(a, n) \
((u_int32_t) OSBitAndAtomic(n, (volatile UInt32 *)a))
-#define atomic_and_32(a, n) \
+#define atomic_and_32(a, n) \
((void) atomic_and_32_ov(a, n))
-#define atomic_bitclear_32(a, n) \
+#define atomic_bitclear_32(a, n) \
atomic_and_32(a, ~(n))
-#define membar_sync OSMemoryBarrier
+#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()
+#define MAX_CPU_CACHE_LINE_SIZE 128
+#define CPU_CACHE_LINE_SIZE mcache_cache_line_size()
#ifndef IS_P2ALIGNED
-#define IS_P2ALIGNED(v, a) \
+#define IS_P2ALIGNED(v, a) \
((((uintptr_t)(v)) & ((uintptr_t)(a) - 1)) == 0)
#endif /* IS_P2ALIGNED */
#ifndef P2ROUNDUP
-#define P2ROUNDUP(x, align) \
+#define P2ROUNDUP(x, align) \
(-(-((uintptr_t)(x)) & -((uintptr_t)align)))
#endif /* P2ROUNDUP */
#ifndef P2ROUNDDOWN
-#define P2ROUNDDOWN(x, align) \
+#define P2ROUNDDOWN(x, align) \
(((uintptr_t)(x)) & ~((uintptr_t)(align) - 1))
#endif /* P2ROUNDDOWN */
((uintptr_t)(x) & -((uintptr_t)(align)))
#endif /* P2ALIGN */
-#define MCACHE_FREE_PATTERN 0xdeadbeefdeadbeefULL
-#define MCACHE_UNINITIALIZED_PATTERN 0xbaddcafebaddcafeULL
+#define MCACHE_FREE_PATTERN 0xdeadbeefdeadbeefULL
+#define MCACHE_UNINITIALIZED_PATTERN 0xbaddcafebaddcafeULL
/*
* mcache allocation request flags.
*
* Regular mcache clients should only use MCR_SLEEP or MCR_NOSLEEP.
*/
-#define MCR_SLEEP 0x0000 /* same as M_WAITOK */
-#define MCR_NOSLEEP 0x0001 /* same as M_NOWAIT */
-#define MCR_FAILOK 0x0100 /* private, for internal use only */
-#define MCR_TRYHARD 0x0200 /* private, for internal use only */
-#define MCR_USR1 0x1000 /* private, for internal use only */
+#define MCR_SLEEP 0x0000 /* same as M_WAITOK */
+#define MCR_NOSLEEP 0x0001 /* same as M_NOWAIT */
+#define MCR_FAILOK 0x0100 /* private, for internal use only */
+#define MCR_TRYHARD 0x0200 /* private, for internal use only */
+#define MCR_USR1 0x1000 /* private, for internal use only */
-#define MCR_NONBLOCKING (MCR_NOSLEEP | MCR_FAILOK | MCR_TRYHARD)
+#define MCR_NONBLOCKING (MCR_NOSLEEP | MCR_FAILOK | MCR_TRYHARD)
/*
* Generic one-way linked list element structure. This is used to handle
* together before returning them to the caller.
*/
typedef struct mcache_obj {
- struct mcache_obj *obj_next;
+ struct mcache_obj *obj_next;
} mcache_obj_t;
typedef struct mcache_bkt {
- void *bkt_next; /* next bucket in list */
- void *bkt_obj[1]; /* one or more objects */
+ void *bkt_next; /* next bucket in list */
+ struct mcache_bkttype *bkt_type; /* bucket type */
+ void *bkt_obj[1]; /* one or more objects */
} mcache_bkt_t;
typedef struct mcache_bktlist {
- mcache_bkt_t *bl_list; /* bucket list */
- u_int32_t bl_total; /* number of buckets */
- u_int32_t bl_min; /* min since last update */
- u_int32_t bl_reaplimit; /* max reapable buckets */
- u_int64_t bl_alloc; /* allocations from this list */
+ mcache_bkt_t *bl_list; /* bucket list */
+ u_int32_t bl_total; /* number of buckets */
+ u_int32_t bl_min; /* min since last update */
+ u_int32_t bl_reaplimit; /* max reapable buckets */
+ u_int64_t bl_alloc; /* allocations from this list */
} mcache_bktlist_t;
typedef struct mcache_bkttype {
- int bt_bktsize; /* bucket size (number of elements) */
- size_t bt_minbuf; /* all smaller buffers qualify */
- size_t bt_maxbuf; /* no larger bfufers qualify */
- struct mcache *bt_cache; /* bucket cache */
+ int bt_bktsize; /* bucket size (number of elements) */
+ size_t bt_minbuf; /* all smaller buffers qualify */
+ size_t bt_maxbuf; /* no larger bfufers qualify */
+ struct mcache *bt_cache; /* bucket cache */
} mcache_bkttype_t;
typedef struct mcache_cpu {
decl_lck_mtx_data(, cc_lock);
- mcache_bkt_t *cc_filled; /* the currently filled bucket */
- mcache_bkt_t *cc_pfilled; /* the previously filled bucket */
- u_int64_t cc_alloc; /* allocations from this cpu */
- u_int64_t cc_free; /* frees to this cpu */
- 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 */
+ mcache_bkt_t *cc_filled; /* the currently filled bucket */
+ mcache_bkt_t *cc_pfilled; /* the previously filled bucket */
+ u_int64_t cc_alloc; /* allocations from this cpu */
+ u_int64_t cc_free; /* frees to this cpu */
+ 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(MAX_CPU_CACHE_LINE_SIZE))) mcache_cpu_t;
typedef unsigned int (*mcache_allocfn_t)(void *, mcache_obj_t ***,
/*
* Cache properties
*/
- LIST_ENTRY(mcache) mc_list; /* cache linkage */
- char mc_name[32]; /* cache name */
- struct zone *mc_slab_zone; /* backend zone allocator */
- 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 */
+ LIST_ENTRY(mcache) mc_list; /* cache linkage */
+ char mc_name[32]; /* cache name */
+ struct zone *mc_slab_zone; /* backend zone allocator */
+ 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 */
- size_t mc_align; /* object alignment */
- u_int32_t mc_flags; /* cache creation flags */
- u_int32_t mc_purge_cnt; /* # of purges requested by slab */
- u_int32_t mc_enable_cnt; /* # of reenables due to purges */
- u_int32_t mc_waiter_cnt; /* # of slab layer waiters */
- u_int32_t mc_wretry_cnt; /* # of wait retries */
- u_int32_t mc_nwretry_cnt; /* # of no-wait retry attempts */
- u_int32_t mc_nwfail_cnt; /* # of no-wait retries that failed */
+ void *mc_private; /* opaque arg to callbacks */
+ size_t mc_bufsize; /* object size */
+ size_t mc_align; /* object alignment */
+ u_int32_t mc_flags; /* cache creation flags */
+ u_int32_t mc_purge_cnt; /* # of purges requested by slab */
+ u_int32_t mc_enable_cnt; /* # of reenables due to purges */
+ u_int32_t mc_waiter_cnt; /* # of slab layer waiters */
+ u_int32_t mc_wretry_cnt; /* # of wait retries */
+ u_int32_t mc_nwretry_cnt; /* # of no-wait retry attempts */
+ u_int32_t mc_nwfail_cnt; /* # of no-wait retries that failed */
decl_lck_mtx_data(, mc_sync_lock); /* protects purges and reenables */
- lck_attr_t *mc_sync_lock_attr;
- lck_grp_t *mc_sync_lock_grp;
- lck_grp_attr_t *mc_sync_lock_grp_attr;
+ lck_attr_t *mc_sync_lock_attr;
+ lck_grp_t *mc_sync_lock_grp;
+ lck_grp_attr_t *mc_sync_lock_grp_attr;
/*
* Keep CPU and buckets layers lock statistics separate.
*/
- lck_attr_t *mc_cpu_lock_attr;
- lck_grp_t *mc_cpu_lock_grp;
- lck_grp_attr_t *mc_cpu_lock_grp_attr;
+ lck_attr_t *mc_cpu_lock_attr;
+ lck_grp_t *mc_cpu_lock_grp;
+ lck_grp_attr_t *mc_cpu_lock_grp_attr;
/*
* Bucket layer common to all CPUs
*/
decl_lck_mtx_data(, mc_bkt_lock);
- lck_attr_t *mc_bkt_lock_attr;
- lck_grp_t *mc_bkt_lock_grp;
+ lck_attr_t *mc_bkt_lock_attr;
+ lck_grp_t *mc_bkt_lock_grp;
lck_grp_attr_t *mc_bkt_lock_grp_attr;
- mcache_bkttype_t *cache_bkttype; /* bucket type */
- mcache_bktlist_t mc_full; /* full buckets */
- mcache_bktlist_t mc_empty; /* empty buckets */
- size_t mc_chunksize; /* bufsize + alignment */
- u_int32_t mc_bkt_contention; /* lock contention count */
- u_int32_t mc_bkt_contention_prev; /* previous snapshot */
+ mcache_bkttype_t *cache_bkttype; /* bucket type */
+ mcache_bktlist_t mc_full; /* full buckets */
+ mcache_bktlist_t mc_empty; /* empty buckets */
+ size_t mc_chunksize; /* bufsize + alignment */
+ u_int32_t mc_bkt_contention; /* lock contention count */
+ u_int32_t mc_bkt_contention_prev; /* previous snapshot */
/*
* Per-CPU layer, aligned at cache line boundary
*/
- mcache_cpu_t mc_cpu[1]
- __attribute__((aligned(MAX_CPU_CACHE_LINE_SIZE)));
+ mcache_cpu_t mc_cpu[1]
+ __attribute__((aligned(MAX_CPU_CACHE_LINE_SIZE)));
} mcache_t;
-#define MCACHE_ALIGN 8 /* default guaranteed alignment */
+#define MCACHE_ALIGN 8 /* default guaranteed alignment */
/* Valid values for mc_flags */
-#define MCF_VERIFY 0x00000001 /* enable verification */
-#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_TRACE)
-#define MCF_FLAGS_MASK \
+#define MCF_VERIFY 0x00000001 /* enable verification */
+#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_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 MCN_RETRYALLOC 0x00000001 /* Allocation should be retried */
-#define MCACHE_STACK_DEPTH 16
+#define MCACHE_STACK_DEPTH 16
-#define MCA_TRN_MAX 2 /* Number of transactions to record */
+#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 */
- 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 mcache_audit *mca_next; /* next audit struct */
+ void *mca_addr; /* address of buffer */
+ mcache_t *mca_cache; /* parent cache of the buffer */
+ 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];
+ 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__ int assfail(const char *, const char *, int) __abortlike;
__private_extern__ void mcache_init(void);
__private_extern__ unsigned int mcache_getflags(void);
__private_extern__ unsigned int mcache_cache_line_size(void);
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,
- void *, size_t);
__private_extern__ void mcache_audit_free_verify(mcache_audit_t *,
void *, size_t, size_t);
__private_extern__ void mcache_audit_free_verify_set(mcache_audit_t *,
void *, size_t, size_t);
__private_extern__ char *mcache_dump_mca(mcache_audit_t *);
__private_extern__ void mcache_audit_panic(mcache_audit_t *, void *, size_t,
- int64_t, int64_t);
+ int64_t, int64_t) __abortlike;
extern int32_t total_sbmb_cnt;
extern int32_t total_sbmb_cnt_floor;
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