X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d7e50217d7adf6e52786a38bcaa4cd698cb9a79e..d12e16782ebf8bb779633dff9e14486293bf6d07:/osfmk/ppc/savearea.h diff --git a/osfmk/ppc/savearea.h b/osfmk/ppc/savearea.h index 6710b8eb8..554cd2bb8 100644 --- a/osfmk/ppc/savearea.h +++ b/osfmk/ppc/savearea.h @@ -3,22 +3,19 @@ * * @APPLE_LICENSE_HEADER_START@ * - * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. + * 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. 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 + * This 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. - * Please see the License for the specific language governing rights and - * limitations under the License. + * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the + * License for the specific language governing rights and limitations + * under the License. * * @APPLE_LICENSE_HEADER_END@ */ @@ -32,10 +29,7 @@ #ifdef __APPLE_API_PRIVATE #ifdef MACH_KERNEL_PRIVATE -#include -#include - -#pragma pack(4) /* Make sure the structure stays as we defined it */ +#include typedef struct savearea_comm { /* @@ -48,35 +42,32 @@ typedef struct savearea_comm { */ -/* Keep the save_prev, sac_next, and sac_prev in these positions, some assembler code depends upon it to +/* Keep the save_prev, sac_next, and sac_prev in these positions, some assemble code depends upon it to * match up with fields in saveanchor. */ - /* 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 */ + 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 */ unsigned int save_level; /* Context ID */ - unsigned int save_01C; - - /* 0x20 */ unsigned int save_time[2]; /* Context save time - for debugging or performance */ struct thread_activation *save_act; /* Associated activation */ - 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 */ - - /* offset 0x040 */ - uint64_t save_misc0; /* Various stuff */ - uint64_t save_misc1; /* Various stuff */ + +/* 0x20 */ + + unsigned int sac_vrswap; /* XOR mask to swap V to R or vice versa */ unsigned int sac_alloc; /* Bitmap of allocated slots */ - unsigned int save_054; - unsigned int save_misc2; - unsigned int save_misc3; + 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 0x0060 */ } savearea_comm; -#pragma pack() #endif #ifdef BSD_KERNEL_PRIVATE @@ -90,91 +81,107 @@ typedef struct savearea_comm { * 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 */ - 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; + /* 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; unsigned int save_cr; + unsigned int save_xer; + unsigned int save_lr; + unsigned int save_ctr; + unsigned int save_dar; unsigned int save_dsisr; - unsigned int save_exception; - unsigned int save_vrsave; - /* offset 0x1C0 */ - unsigned int save_vscr[4]; + + + /* offset 0x120 */ + unsigned int save_vscr[4]; unsigned int save_fpscrpad; unsigned int save_fpscr; - unsigned int save_1d8[2]; - /* offset 0x1E0 */ + 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_1E0[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 */ + unsigned int save_200[8]; + unsigned int save_220[8]; + unsigned int save_240[8]; + unsigned int save_260[8]; + /* offset 0x280 */ } savearea; -#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 */ @@ -232,7 +239,6 @@ typedef struct savearea_fpu { /* offset 0x280 */ } savearea_fpu; -#pragma pack() @@ -240,7 +246,6 @@ 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 */ @@ -284,12 +289,10 @@ 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 { /* @@ -298,24 +301,20 @@ 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; /* 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 */ - volatile int savetarget; /* 02C Number of savearea's needed */ - int savemaxcount; /* 030 Maximum saveareas ever allocated */ - unsigned int saveRSVD034[3]; /* 034 reserved */ -/* 040 */ + 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 */ + }; -#pragma pack() #define sac_cnt (4096 / sizeof(savearea)) /* Number of saveareas per page */ @@ -333,24 +332,20 @@ struct Saveanchor { #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 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 */ - -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_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 */ + #endif /* MACH_KERNEL_PRIVATE */ #endif /* __APPLE_API_PRIVATE */ @@ -360,9 +355,6 @@ void savearea_init(vm_offset_t addr); /* Boot-time savearea initialization */ #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 SAVtype 0x0000FF00 /* Shows type of savearea */ #define SAVtypeshft 8 /* Shift to position type */ #define SAVempty 0x86 /* Savearea is on free list */ @@ -370,6 +362,4 @@ void savearea_init(vm_offset_t addr); /* Boot-time savearea initialization */ #define SAVfloat 0x02 /* Savearea contains floating point context */ #define SAVvector 0x03 /* Savearea contains vector context */ - - #endif /* _PPC_SAVEAREA_H_ */