X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/de355530ae67247cbd0da700edb3a2a1dae884c2..4a3eedf9ecc9bbe3f3a5c6ce5e53ad199d639d32:/osfmk/ppc/savearea.h?ds=sidebyside diff --git a/osfmk/ppc/savearea.h b/osfmk/ppc/savearea.h index 554cd2bb8..496591cb6 100644 --- 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, - * 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_ @@ -28,8 +36,11 @@ #ifdef __APPLE_API_PRIVATE -#ifdef MACH_KERNEL_PRIVATE -#include +#if defined(MACH_KERNEL_PRIVATE) || defined(BSD_KERNEL_PRIVATE) +#include +#include + +#pragma pack(4) /* Make sure the structure stays as we defined it */ typedef struct savearea_comm { /* @@ -42,146 +53,127 @@ typedef struct savearea_comm { */ -/* Keep the save_prev, sac_next, and sac_prev in these positions, some assemble code depends upon it to +/* Keep the save_prev, sac_next, and sac_prev in these positions, some assembler code depends upon it to * match up with fields in saveanchor. */ - struct savearea *save_prev; /* The address of the previous (or next) savearea */ - unsigned int *sac_next; /* Points to next savearea page that has a free slot - real */ - unsigned int *sac_prev; /* Points to previous savearea page that has a free slot - real */ - unsigned int save_flags; /* Various flags */ + /* offset 0x000 */ + addr64_t save_prev; /* The address of the previous (or next) savearea */ + addr64_t sac_next; /* Points to next savearea page that has a free slot - real */ + addr64_t sac_prev; /* Points to previous savearea page that has a free slot - real */ unsigned int save_level; /* Context ID */ - unsigned int save_time[2]; /* Context save time - for debugging or performance */ - struct thread_activation *save_act; /* Associated activation */ - -/* 0x20 */ + unsigned int save_01C; - unsigned int sac_vrswap; /* XOR mask to swap V to R or vice versa */ - unsigned int sac_alloc; /* Bitmap of allocated slots */ + /* 0x20 */ + unsigned int save_time[2]; /* Context save time - for debugging or performance */ + 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 sac_flags; /* Various flags */ - unsigned int save_misc0; /* Various stuff */ - unsigned int save_misc1; /* Various stuff */ - unsigned int save_misc2; /* Various stuff */ - unsigned int save_misc3; /* Various stuff */ - unsigned int save_misc4; /* Various stuff */ - - unsigned int save_040[8]; /* Fill 32 bytes */ + + /* offset 0x040 */ + uint64_t save_misc0; /* 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 save_misc3; /* offset 0x0060 */ } savearea_comm; -#endif - -#ifdef BSD_KERNEL_PRIVATE -typedef struct savearea_comm { - unsigned int save_000[24]; -} savearea_comm; -#endif +#pragma pack() -#if defined(MACH_KERNEL_PRIVATE) || defined(BSD_KERNEL_PRIVATE) /* * This type of savearea contains all of the general context. */ +#pragma pack(4) /* Make sure the structure stays as we defined it */ typedef struct savearea { savearea_comm save_hdr; /* Stuff common to all saveareas */ - unsigned int save_060[8]; /* Fill 32 bytes */ - /* offset 0x0080 */ - unsigned int save_r0; - unsigned int save_r1; - unsigned int save_r2; - unsigned int save_r3; - unsigned int save_r4; - unsigned int save_r5; - unsigned int save_r6; - unsigned int save_r7; - - /* offset 0x0A0 */ - unsigned int save_r8; - unsigned int save_r9; - unsigned int save_r10; - unsigned int save_r11; - unsigned int save_r12; - unsigned int save_r13; - unsigned int save_r14; - unsigned int save_r15; - - /* offset 0x0C0 */ - unsigned int save_r16; - unsigned int save_r17; - unsigned int save_r18; - unsigned int save_r19; - unsigned int save_r20; - unsigned int save_r21; - unsigned int save_r22; - unsigned int save_r23; - - /* offset 0x0E0 */ - unsigned int save_r24; - unsigned int save_r25; - unsigned int save_r26; - unsigned int save_r27; - unsigned int save_r28; - unsigned int save_r29; - unsigned int save_r30; - unsigned int save_r31; - - /* offset 0x100 */ - unsigned int save_srr0; - unsigned int save_srr1; + uint64_t save_xdat0; /* Exception data 0 */ + 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; + uint64_t save_r2; + uint64_t save_r3; + /* offset 0x0A0 */ + uint64_t save_r4; + uint64_t save_r5; + uint64_t save_r6; + uint64_t save_r7; + /* offset 0x0C0 */ + uint64_t save_r8; + uint64_t save_r9; + uint64_t save_r10; + uint64_t save_r11; + /* offset 0x0E0 */ + uint64_t save_r12; + uint64_t save_r13; + uint64_t save_r14; + uint64_t save_r15; + /* offset 0x100 */ + uint64_t save_r16; + uint64_t save_r17; + uint64_t save_r18; + uint64_t save_r19; + /* offset 0x120 */ + uint64_t save_r20; + uint64_t save_r21; + uint64_t save_r22; + uint64_t save_r23; + /* offset 0x140 */ + uint64_t save_r24; + uint64_t save_r25; + uint64_t save_r26; + uint64_t save_r27; + /* offset 0x160 */ + uint64_t save_r28; + uint64_t save_r29; + uint64_t save_r30; + uint64_t save_r31; + /* offset 0x180 */ + uint64_t save_srr0; + uint64_t save_srr1; + uint64_t save_xer; + uint64_t save_lr; + /* offset 0x1A0 */ + uint64_t save_ctr; + uint64_t save_dar; unsigned int save_cr; - unsigned int save_xer; - unsigned int save_lr; - unsigned int save_ctr; - unsigned int save_dar; unsigned int save_dsisr; - - - /* offset 0x120 */ - unsigned int save_vscr[4]; + unsigned int save_exception; + unsigned int save_vrsave; + /* offset 0x1C0 */ + unsigned int save_vscr[4]; unsigned int save_fpscrpad; unsigned int save_fpscr; - unsigned int save_exception; - unsigned int save_vrsave; - - /* offset 0x140 */ - unsigned int save_sr0; - unsigned int save_sr1; - unsigned int save_sr2; - unsigned int save_sr3; - unsigned int save_sr4; - unsigned int save_sr5; - unsigned int save_sr6; - unsigned int save_sr7; - - /* offset 0x160 */ - unsigned int save_sr8; - unsigned int save_sr9; - unsigned int save_sr10; - unsigned int save_sr11; - unsigned int save_sr12; - unsigned int save_sr13; - unsigned int save_sr14; - unsigned int save_sr15; - - /* offset 0x180 */ - unsigned int save_180[8]; - unsigned int save_1A0[8]; - unsigned int save_1C0[8]; + unsigned int save_1d8[2]; + /* offset 0x1E0 */ unsigned int save_1E0[8]; - unsigned int save_200[8]; - unsigned int save_220[8]; - unsigned int save_240[8]; - unsigned int save_260[8]; - + /* offset 0x200 - keep on 128 byte bndry */ + uint32_t save_pmc[8]; + uint64_t save_mmcr0; /* offset 0x220 */ + uint64_t save_mmcr1; + uint64_t save_mmcr2; + + unsigned int save_238[2]; + /* offset 0x240 */ + unsigned int save_instr[16]; /* Instrumentation or emulation. Note: save_instr[0] is number of instructions */ /* offset 0x280 */ -} savearea; +} savearea_t; +#pragma pack() /* * This type of savearea contains all of the floating point context. */ +#pragma pack(4) /* Make sure the structure stays as we defined it */ typedef struct savearea_fpu { savearea_comm save_hdr; /* Stuff common to all saveareas */ @@ -239,6 +231,7 @@ typedef struct savearea_fpu { /* offset 0x280 */ } savearea_fpu; +#pragma pack() @@ -246,6 +239,7 @@ typedef struct savearea_fpu { * This type of savearea contains all of the vector context. */ +#pragma pack(4) /* Make sure the structure stays as we defined it */ typedef struct savearea_vec { savearea_comm save_hdr; /* Stuff common to all saveareas */ @@ -289,10 +283,12 @@ typedef struct savearea_vec { /* offset 0x280 */ } savearea_vec; +#pragma pack() #endif /* MACH_KERNEL_PRIVATE || BSD_KERNEL_PRIVATE */ #ifdef MACH_KERNEL_PRIVATE +#pragma pack(4) /* Make sure the structure stays as we defined it */ struct Saveanchor { /* @@ -301,23 +297,28 @@ struct Saveanchor { * updated with translation and interrupts disabled. This is because it is * locked during exception processing and if we were to take a PTE miss while the * lock were held, well, that would be very bad now wouldn't it? + * Note that the first 24 bytes must be the same format as a savearea header. */ - unsigned int savelock; /* Lock word for savearea free list manipulation */ - unsigned int *savepoolfwd; /* Forward anchor for the free pool */ - unsigned int *savepoolbwd; /* Backward anchor for the free pool */ - volatile unsigned int savefree; /* Anchor for the global free list */ - volatile unsigned int savefreecnt; /* Number of saveareas on global free list */ - volatile int saveadjust; /* If 0 number of saveareas is ok, otherwise number to change (positive means grow, negative means shrink */ - volatile int saveinuse; /* Number of areas in use counting those on the local free list */ - volatile int savetarget; /* Number of savearea's needed */ - int savemaxcount; /* Maximum saveareas ever allocated */ - - + unsigned int savelock; /* 000 Lock word for savearea free list manipulation */ + int saveRSVD4; /* 004 reserved */ + addr64_t savepoolfwd; /* 008 Forward anchor for the free pool */ + addr64_t savepoolbwd; /* 010 Backward anchor for the free pool */ + volatile addr64_t savefree; /* 018 Anchor for the global 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 */ + unsigned int savetarget; /* 02C Number of saveareas needed */ + int savemaxcount; /* 030 Maximum saveareas ever allocated */ + 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 */ @@ -326,25 +327,41 @@ 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 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 */ - - -void save_release(struct savearea *); /* Release a save area */ -struct savectl *save_dequeue(void); /* Find and dequeue one that is all empty */ -unsigned int save_queue(struct savearea *); /* Add a new savearea block to the free list */ -struct savearea *save_get(void); /* Obtains a savearea from the free list (returns virtual address) */ -struct savearea *save_get_phys(void); /* Obtains a savearea from the free list (returns physical address) */ -struct savearea *save_alloc(void); /* Obtains a savearea and allocates blocks if needed */ -struct savearea *save_cpv(struct savearea *); /* Converts a physical savearea address to virtual */ -void save_ret(struct savearea *); /* Returns a savearea to the free list */ -void save_ret_phys(struct savearea *); /* Returns a savearea to the free list */ -void save_adjust(void); /* Adjust size of the global free list */ -struct savearea_comm *save_trim_freet(void); /* Remove free pages from savearea pool */ +#define BackPocketSaveBloks 8 /* Number of pages of back pocket saveareas */ + +void save_queue(ppnum_t); /* Add a new savearea block to the free list */ +addr64_t save_get_init(void); /* special savearea-get for cpu initialization (returns physical address) */ +struct savearea *save_get(void); /* Obtains a savearea from the free list (returns virtual address) */ +reg64_t save_get_phys_32(void); /* Obtains a savearea from the free list (returns phys addr in r3) */ +reg64_t save_get_phys_64(void); /* Obtains a savearea from the free list (returns phys addr in r3) */ +struct savearea *save_alloc(void); /* Obtains a savearea and allocates blocks if needed */ +struct savearea *save_cpv(addr64_t); /* Converts a physical savearea address to virtual */ +void save_ret(struct savearea *); /* Returns a savearea to the free list by virtual address */ +void save_ret_wMSR(struct savearea *, reg64_t); /* returns a savearea and restores an MSR */ +void save_ret_phys(reg64_t); /* Returns a savearea to the free list by physical address */ +void save_adjust(void); /* Adjust size of the global free list */ +struct savearea_comm *save_trim_free(void); /* Remove free pages from savearea pool */ +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 */ @@ -355,6 +372,13 @@ struct savearea_comm *save_trim_freet(void); /* Remove free pages from saveare #define SAVrststk 0x00010000 /* Indicates that the current stack should be reset to empty */ #define SAVsyscall 0x00020000 /* Indicates that the savearea is associated with a syscall */ #define SAVredrive 0x00040000 /* Indicates that the low-level fault handler associated */ +#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 */ @@ -362,4 +386,8 @@ struct savearea_comm *save_trim_freet(void); /* Remove free pages from saveare #define SAVfloat 0x02 /* Savearea contains floating point context */ #define SAVvector 0x03 /* Savearea contains vector context */ + + #endif /* _PPC_SAVEAREA_H_ */ + +#endif /* XNU_KERNEL_PRIVATE */