/*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
+#ifdef XNU_KERNEL_PRIVATE
+
#ifndef _PPC_SAVEAREA_H_
#define _PPC_SAVEAREA_H_
#ifdef __APPLE_API_PRIVATE
-#ifdef MACH_KERNEL_PRIVATE
+#if defined(MACH_KERNEL_PRIVATE) || defined(BSD_KERNEL_PRIVATE)
#include <stdint.h>
#include <mach/vm_types.h>
/* 0x20 */
unsigned int save_time[2]; /* Context save time - for debugging or performance */
- struct thread_activation *save_act; /* Associated activation */
+ struct thread *save_act; /* Associated thread */
unsigned int save_02c;
uint64_t sac_vrswap; /* XOR mask to swap V to R or vice versa */
unsigned int save_flags; /* Various flags */
/* offset 0x040 */
uint64_t save_misc0; /* Various stuff */
- uint64_t save_misc1; /* Various stuff */
+ uint64_t save_misc1; /* Various stuff - snapshot chain during hibernation */
unsigned int sac_alloc; /* Bitmap of allocated slots */
unsigned int save_054;
unsigned int save_misc2;
/* offset 0x0060 */
} savearea_comm;
#pragma pack()
-#endif
-#ifdef BSD_KERNEL_PRIVATE
-typedef struct savearea_comm {
- unsigned int save_000[24];
-} savearea_comm;
-#endif
-
-#if defined(MACH_KERNEL_PRIVATE) || defined(BSD_KERNEL_PRIVATE)
/*
* This type of savearea contains all of the general context.
*/
uint64_t save_xdat1; /* Exception data 1 */
uint64_t save_xdat2; /* Exception data 2 */
uint64_t save_xdat3; /* Exception data 3 */
-
/* offset 0x0080 */
uint64_t save_r0;
uint64_t save_r1;
unsigned int save_238[2];
/* offset 0x240 */
- unsigned int save_instr[16]; /* Instrumentation */
+ unsigned int save_instr[16]; /* Instrumentation or emulation. Note: save_instr[0] is number of instructions */
/* offset 0x280 */
-} savearea;
+} savearea_t;
#pragma pack()
volatile unsigned int savefreecnt; /* 020 Number of saveareas on global free list */
volatile int saveadjust; /* 024 If 0 number of saveareas is ok, otherwise # to change (pos means grow, neg means shrink */
volatile int saveinuse; /* 028 Number of areas in use counting those on the local free list */
- volatile int savetarget; /* 02C Number of savearea's needed */
+ unsigned int savetarget; /* 02C Number of saveareas needed */
int savemaxcount; /* 030 Maximum saveareas ever allocated */
- unsigned int saveRSVD034[3]; /* 034 reserved */
+ unsigned int saveinusesnapshot; /* 034 snapshot inuse count */
+ volatile addr64_t savefreesnapshot; /* 038 snapshot global free list header */
/* 040 */
-
};
#pragma pack()
+extern struct Saveanchor saveanchor; /* Aliged savearea anchor */
-#define sac_cnt (4096 / sizeof(savearea)) /* Number of saveareas per page */
+#define sac_cnt (4096 / sizeof(struct savearea)) /* Number of saveareas per page */
#define sac_empty (0xFFFFFFFF << (32 - sac_cnt)) /* Mask with all entries empty */
#define sac_perm 0x40000000 /* Page permanently assigned */
#define sac_permb 1 /* Page permanently assigned - bit position */
#define LocalSaveMin (LocalSaveTarget / 2) /* Min size of local savearea free list before we grow */
#define LocalSaveMax (LocalSaveTarget * 2) /* Max size of local savearea free list before we trim */
-#define FreeListMin (2 * LocalSaveTarget * NCPUS) /* Always make sure there are enough to fill local list twice per processor */
-#define SaveLowHysteresis LocalSaveTarget /* The number off from target before we adjust upwards */
-#define SaveHighHysteresis FreeListMin /* The number off from target before we adjust downwards */
+#define FreeListMin (2 * LocalSaveTarget) /* Always make sure there are enough to fill local list twice per processor */
+#define SaveLowHysteresis LocalSaveTarget /* The number off from target before we adjust upwards */
+#define SaveHighHysteresis (2 * FreeListMin) /* The number off from target before we adjust downwards */
#define InitialSaveAreas (2 * FreeListMin) /* The number of saveareas to make at boot time */
-#define InitialSaveTarget FreeListMin /* The number of saveareas for an initial target. This should be the minimum ever needed. */
+#define InitialSaveTarget FreeListMin /* The number of saveareas for an initial target. This should be the minimum ever needed. */
#define InitialSaveBloks (InitialSaveAreas + sac_cnt - 1) / sac_cnt /* The number of savearea blocks to allocate at boot */
#define BackPocketSaveBloks 8 /* Number of pages of back pocket saveareas */
int save_recover(void); /* returns nonzero if we can recover enough from the free pool */
void savearea_init(vm_offset_t addr); /* Boot-time savearea initialization */
+void save_fake_zone_info( /* report savearea usage statistics as fake zone info */
+ int *count,
+ vm_size_t *cur_size,
+ vm_size_t *max_size,
+ vm_size_t *elem_size,
+ vm_size_t *alloc_size,
+ int *collectable,
+ int *exhaustable);
+
+void save_snapshot(void);
+void save_snapshot_restore(void);
+void save_release(struct savearea *);
#endif /* MACH_KERNEL_PRIVATE */
#endif /* __APPLE_API_PRIVATE */
#define SAVinstrumentb 12 /* Indicates that we should return instrumentation data */
#define SAVeat 0x00100000 /* Indicates that interruption should be ignored */
#define SAVeatb 11 /* Indicates that interruption should be ignored */
+#define SAVinject 0x00200000 /* Indicates that save_instr contains code to inject */
+#define SAVinjectb 10 /* Indicates that save_instr contains code to inject */
#define SAVtype 0x0000FF00 /* Shows type of savearea */
#define SAVtypeshft 8 /* Shift to position type */
#define SAVempty 0x86 /* Savearea is on free list */
#endif /* _PPC_SAVEAREA_H_ */
+
+#endif /* XNU_KERNEL_PRIVATE */
projects / apple / xnu.git / blobdiff