xnu-1228.3.13.tar.gz

[apple/xnu.git] / osfmk / ppc / savearea.h

diff --git a/osfmk/ppc/savearea.h b/osfmk/ppc/savearea.h
index dede6dbd5bb8181359cb060b6de76f5c33a27429..496591cb6713564a80aace23142a8793ec9d65f1 100644 (file)
--- a/osfmk/ppc/savearea.h
+++ b/osfmk/ppc/savearea.h
@@ -1,24 +1,32 @@
 /*
 /*

- * 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,
  * 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_
 
 #ifndef _PPC_SAVEAREA_H_
 #define _PPC_SAVEAREA_H_
 


@@ -28,7 +36,7 @@
 
 #ifdef __APPLE_API_PRIVATE
 
 
 #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>
 
 #include <stdint.h>
 #include <mach/vm_types.h>
 


@@ -57,7 +65,7 @@ typedef struct savearea_comm {
 
                                                                                                /*       0x20 */
        unsigned int    save_time[2];                           /* Context save time - for debugging or performance */
 
                                                                                                /*       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 */
     unsigned int       save_02c;
        uint64_t                sac_vrswap;                                     /* XOR mask to swap V to R or vice versa */
        unsigned int    save_flags;                                     /* Various flags */


@@ -65,7 +73,7 @@ typedef struct savearea_comm {
     
                                                 /* offset 0x040 */
        uint64_t                save_misc0;                                     /* Various stuff */
     
                                                 /* 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;
        unsigned int    sac_alloc;                                      /* Bitmap of allocated slots */
     unsigned int       save_054;
     unsigned int       save_misc2;


@@ -74,15 +82,7 @@ typedef struct savearea_comm {
                                                                                                /* offset 0x0060 */
 } savearea_comm;
 #pragma pack()
                                                                                                /* 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.
  */
 /*
  *     This type of savearea contains all of the general context.
  */


@@ -96,7 +96,6 @@ typedef struct savearea {
        uint64_t                save_xdat1;                                     /* Exception data 1 */
        uint64_t                save_xdat2;                                     /* Exception data 2 */
        uint64_t                save_xdat3;                                     /* Exception data 3 */
        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;
                                                 /* offset 0x0080 */
        uint64_t                save_r0;
        uint64_t                save_r1;


@@ -164,9 +163,9 @@ typedef struct savearea {
 
        unsigned int    save_238[2];
                                                                                                /* offset 0x240 */
 
        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 */
                                                                                                /* offset 0x280 */

-} savearea;
+} savearea_t;

 #pragma pack()
 
 
 #pragma pack()
 
 


@@ -309,16 +308,17 @@ struct Saveanchor {
        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 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 */
        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 */
 /*                                                                                        040 */

-

 };
 #pragma pack()
 
 };
 #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 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 */


@@ -327,11 +327,11 @@ struct Saveanchor {
 #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 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 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 */
 
 #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 */
 


@@ -350,6 +350,18 @@ struct savearea_comm       *save_trim_free(void);  /* Remove free pages from savearea p
 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 */
 
 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 */
 
 #endif /* MACH_KERNEL_PRIVATE */
 #endif /* __APPLE_API_PRIVATE */


@@ -363,6 +375,10 @@ void                       savearea_init(vm_offset_t addr);        /* Boot-time savearea initialization */
 #define SAVredriveb    13                                              /* Indicates that the low-level fault handler associated */
 #define        SAVinstrument 0x00080000                        /* Indicates that we should return instrumentation data */
 #define        SAVinstrumentb 12                                       /* Indicates that we should return instrumentation data */
 #define SAVredriveb    13                                              /* Indicates that the low-level fault handler associated */
 #define        SAVinstrument 0x00080000                        /* Indicates that we should return instrumentation data */
 #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 */
 #define SAVtype                0x0000FF00                              /* Shows type of savearea */
 #define SAVtypeshft    8                                               /* Shift to position type */
 #define SAVempty       0x86                                    /* Savearea is on free list */


@@ -373,3 +389,5 @@ void                        savearea_init(vm_offset_t addr);        /* Boot-time savearea initialization */
 
 
 #endif /* _PPC_SAVEAREA_H_ */
 
 
 #endif /* _PPC_SAVEAREA_H_ */

+
+#endif /* XNU_KERNEL_PRIVATE */