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

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_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 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.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
#ifndef _PPC_ASM_H_
#define _PPC_ASM_H_

#define __ASMNL__       @
#define STRINGD .ascii

#ifdef ASSEMBLER


#define br0 0

#define ARG0 r3
#define ARG1 r4
#define ARG2 r5
#define ARG3 r6
#define ARG4 r7
#define ARG5 r8
#define ARG6 r9
#define ARG7 r10

#define tmp0    r0      /* Temporary GPR remapping (603e specific) */
#define tmp1    r1
#define tmp2    r2
#define tmp3    r3

/* SPR registers */

#define mq              0               /* MQ register for 601 emulation */
#define rtcu    4               /* RTCU - upper word of RTC for 601 emulation */
#define rtcl    5               /* RTCL - lower word of RTC for 601 emulation */
#define dsisr   18
#define ppcDAR  19
#define ppcdar  19
#define dar             19
#define SDR1    25
#define sdr1    25
#define srr0    26
#define srr1    27
#define vrsave  256             /* Vector Register save */
#define sprg0   272
#define sprg1   273
#define sprg2   274
#define sprg3   275
#define pvr             287

#define IBAT0U  528
#define IBAT0L  529
#define IBAT1U  530
#define IBAT1L  531
#define IBAT2U  532
#define IBAT2L  533
#define IBAT3U  534
#define IBAT3L  535
#define ibat0u  528
#define ibat0l  529
#define ibat1u  530
#define ibat1l  531
#define ibat2u  532
#define ibat2l  533
#define ibat3u  534
#define ibat3l  535

#define DBAT0U  536
#define DBAT0L  537
#define DBAT1U  538
#define DBAT1L  539
#define DBAT2U  540
#define DBAT2L  541
#define DBAT3U  542
#define DBAT3L  543
#define dbat0u  536
#define dbat0l  537
#define dbat1u  538
#define dbat1l  539
#define dbat2u  540
#define dbat2l  541
#define dbat3u  542
#define dbat3l  543

#define ummcr2  928             /* Performance monitor control */
#define ubamr   935             /* Performance monitor mask */
#define ummcr0  936             /* Performance monitor control */
#define upmc1   937             /* Performance monitor counter */
#define upmc2   938             /* Performance monitor counter */
#define usia    939             /* User sampled instruction address */
#define ummcr1  940             /* Performance monitor control */
#define upmc3   941             /* Performance monitor counter */
#define upmc4   942             /* Performance monitor counter */
#define usda    943             /* User sampled data address */
#define mmcr2   944             /* Performance monitor control */
#define bamr    951             /* Performance monitor mask */
#define mmcr0   952
#define pmc1    953
#define pmc2    954
#define sia             955
#define mmcr1   956
#define pmc3    957
#define pmc4    958
#define sda             959             /* Sampled data address */
#define dmiss   976             /* ea that missed */
#define dcmp    977             /* compare value for the va that missed */
#define hash1   978             /* pointer to first hash pteg */
#define hash2   979             /* pointer to second hash pteg */
#define imiss   980             /* ea that missed */
#define tlbmiss 980             /* ea that missed */
#define icmp    981             /* compare value for the va that missed */
#define ptehi   981             /* compare value for the va that missed */
#define rpa             982             /* required physical address register */
#define ptelo   982             /* required physical address register */
#define l3pdet  984             /* l3pdet */

#define HID0    1008    /* Checkstop and misc enables */
#define hid0    1008    /* Checkstop and misc enables */
#define HID1    1009    /* Clock configuration */
#define hid1    1009    /* Clock configuration */
#define iabr    1010    /* Instruction address breakpoint register */
#define ictrl   1011    /* Instruction Cache Control */
#define dabr    1013    /* Data address breakpoint register */
#define msscr0  1014    /* Memory subsystem control */
#define msscr1  1015    /* Memory subsystem debug */
#define msssr0  1015    /* Memory Subsystem Status */
#define ldstcr  1016    /* Load/Store Status/Control */
#define l2cr2   1016    /* L2 Cache control 2 */
#define l2cr    1017    /* L2 Cache control */
#define l3cr    1018    /* L3 Cache control */
#define ictc    1019    /* I-cache throttling control */
#define thrm1   1020    /* Thermal management 1 */
#define thrm2   1021    /* Thermal management 2 */
#define thrm3   1022    /* Thermal management 3 */
#define pir             1023    /* Processor ID Register */

;       hid0 bits
#define emcp    0
#define emcpm   0x80000000
#define dbp             1
#define dbpm    0x40000000
#define eba             2
#define ebam    0x20000000
#define ebd             3
#define ebdm    0x10000000
#define sbclk   4
#define sbclkm  0x08000000
#define eclk    6
#define eclkm   0x02000000
#define par             7
#define parm    0x01000000
#define sten    7
#define stenm   0x01000000
#define doze    8
#define dozem   0x00800000
#define nap             9
#define napm    0x00400000
#define sleep   10
#define sleepm  0x00200000
#define dpm             11
#define dpmm    0x00100000
#define riseg   12
#define risegm  0x00080000
#define eiec    13
#define eiecm   0x00040000
#define nhr             15
#define nhrm    0x00010000
#define ice             16
#define icem    0x00008000
#define dce             17
#define dcem    0x00004000
#define ilock   18
#define ilockm  0x00002000
#define dlock   19
#define dlockm  0x00001000
#define icfi    20
#define icfim   0x00000800
#define dcfi    21
#define dcfim   0x00000400
#define spd             22
#define spdm    0x00000200
#define sge             24
#define sgem    0x00000080
#define dcfa    25
#define dcfam   0x00000040
#define btic    26
#define bticm   0x00000020
#define lrstk   27
#define lrstkm  0x00000010
#define abe             28
#define abem    0x00000008
#define fold    28
#define foldm   0x00000008
#define bht             29
#define bhtm    0x00000004
#define nopdst  30
#define nopdstm 0x00000002
#define nopti   31
#define noptim  0x00000001

;       msscr0 bits
#define shden   0
#define shdenm  0x80000000
#define shden3  1
#define shdenm3 0x40000000
#define l1intvs 2       
#define l1intve 4       
#define l1intvb 0x38000000      
#define l2intvs 5       
#define l2intve 7       
#define l2intvb 0x07000000      
#define dl1hwf  8
#define dl1hwfm 0x00800000
#define dbsiz   9
#define dbsizm  0x00400000
#define emode   10
#define emodem  0x00200000
#define abgd    11
#define abgdm   0x00100000
#define tfsts   24
#define tfste   25
#define tfstm   0x000000C0

;       msscr1 bits
#define cqd             15
#define cqdm    0x00010000
#define csqs    1
#define csqe    2
#define csqm    0x60000000

;       msssr1 bits - 7450
#define vgL2PARA        0
#define vgL3PARA        1
#define vgL2COQEL       2
#define vgL3COQEL       3
#define vgL2CTR         4
#define vgL3CTR         5
#define vgL2COQR        6
#define vgL3COQR        7
#define vgLMQ           8
#define vgSMC           9
#define vgSNP           10
#define vgBIU           11
#define vgSMCE          12
#define vgL2TAG         13
#define vgL2DAT         14
#define vgL3TAG         15
#define vgL3DAT         16
#define vgAPE           17
#define vgDPE           18
#define vgTEA           19

;       srr1 bits
#define icmck   1
#define icmckm  0x40000000
#define dcmck   2
#define dcmckm  0x20000000
#define l2mck   3
#define l2mckm  0x10000000
#define tlbmck  4
#define tlbmckm 0x08000000
#define brmck   5
#define brmckm  0x04000000
#define othmck  10
#define othmckm 0x00200000
#define l2dpmck 11
#define l2dpmckm        0x00100000
#define mcpmck  12
#define mcpmckm 0x00080000
#define teamck  13
#define teamckm 0x00040000
#define dpmck   14
#define dpmckm  0x00020000
#define apmck   15
#define apmckm  0x00010000

;       L2 cache control
#define l2e             0
#define l2em    0x80000000
#define l2pe    1
#define l2pem   0x40000000
#define l2siz   2
#define l2sizf  3
#define l2sizm  0x30000000
#define l2clk   4
#define l2clkf  6
#define l2clkm  0x0E000000
#define l2ram   7
#define l2ramf  8
#define l2ramm  0x01800000
#define l2do    9
#define l2dom   0x00400000
#define l2i             10
#define l2im    0x00200000
#define l2ctl   11
#define l2ctlm  0x00100000
#define l2ionly 11
#define l2ionlym        0x00100000
#define l2wt    12
#define l2wtm   0x00080000
#define l2ts    13
#define l2tsm   0x00040000
#define l2oh    14
#define l2ohf   15
#define l2ohm   0x00030000
#define l2donly 15
#define l2donlym        0x00010000
#define l2sl    16
#define l2slm   0x00008000
#define l2df    17
#define l2dfm   0x00004000
#define l2byp   18
#define l2bypm  0x00002000
#define l2fa    19
#define l2fam   0x00001000
#define l2hwf   20
#define l2hwfm  0x00000800
#define l2io    21
#define l2iom   0x00000400
#define l2clkstp        22
#define l2clkstpm       0x00000200
#define l2dro   23
#define l2drom  0x00000100 
#define l2ctr   24
#define l2ctrf  30
#define l2ctrm  0x000000FE
#define l2ip    31
#define l2ipm   0x00000001

;       L3 cache control
#define l3e             0
#define l3em    0x80000000
#define l3pe    1
#define l3pem   0x40000000
#define l3siz   3
#define l3sizm  0x10000000
#define l3clken 4
#define l3clkenm        0x08000000
#define l3dx    5
#define l3dxm   0x04000000
#define l3clk   6
#define l3clkf  8
#define l3clkm  0x03800000
#define l3io    9
#define l3iom   0x00400000
#define l3spo   13
#define l3spom  0x00040000
#define l3cksp  14
#define l3ckspf 15
#define l3ckspm 0x00030000
#define l3psp   16
#define l3pspf  18
#define l3pspm  0x0000E000
#define l3rep   19
#define l3repm  0x00001000
#define l3hwf   20
#define l3hwfm  0x00000800
#define l3i             21
#define l3im    0x00000400
#define l3rt    22
#define l3rtf   23
#define l3rtm   0x00000300
#define l3dro   23
#define l3drom  0x00000100 
#define l3cya   24
#define l3cyam  0x00000080
#define l3donly 25
#define l3donlym        0x00000040
#define l3dmem  29
#define l3dmemm 0x00000004
#define l3dmsiz 31
#define l3dmsizm        0x00000001

#define thrmtin         0
#define thrmtinm        0x80000000
#define thrmtiv         1
#define thrmtivm        0x40000000
#define thrmthrs        2
#define thrmthre        8
#define thrmthrm        0x3F800000
#define thrmtid         29
#define thrmtidm        0x00000004
#define thrmtie         30
#define thrmtiem        0x00000002
#define thrmv           31
#define thrmvm          0x00000001

#define thrmsitvs       15
#define thrmsitve       30
#define thrmsitvm       0x0001FFFE
#define thrme           31
#define thrmem          0x00000001

#define ictcfib         23
#define ictcfie         30
#define ictcfim         0x000001FE
#define ictce           31
#define ictcem          0x00000001

#define cr0_lt  0
#define cr0_gt  1
#define cr0_eq  2
#define cr0_so  3
#define cr0_un  3
#define cr1_lt  4
#define cr1_gt  5
#define cr1_eq  6
#define cr1_so  7
#define cr1_un  7
#define cr2_lt  8
#define cr2_gt  9
#define cr2_eq  10
#define cr2_so  11
#define cr2_un  11
#define cr3_lt  12
#define cr3_gt  13
#define cr3_eq  14
#define cr3_so  15
#define cr3_un  15
#define cr4_lt  16
#define cr4_gt  17
#define cr4_eq  18
#define cr4_so  19
#define cr4_un  19
#define cr5_lt  20
#define cr5_gt  21
#define cr5_eq  22
#define cr5_so  23
#define cr5_un  23
#define cr6_lt  24
#define cr6_gt  25
#define cr6_eq  26
#define cr6_so  27
#define cr6_un  27
#define cr7_lt  28
#define cr7_gt  29
#define cr7_eq  30
#define cr7_so  31
#define cr7_un  31

/*
 * Macros to access high and low word values of an address
 */

#define HIGH_CADDR(x)   ha16(x)
#define HIGH_ADDR(x)    hi16(x)
#define LOW_ADDR(x)     lo16(x)

#endif  /* ASSEMBLER */

/* Tags are placed before Immediately Following Code (IFC) for the debugger
 * to be able to deduce where to find various registers when backtracing
 * 
 * We only define the values as we use them, see SVR4 ABI PowerPc Supplement
 * for more details (defined in ELF spec).
 */

#define TAG_NO_FRAME_USED 0x00000000

/* (should use genassym to get these offsets) */

#define FM_BACKPTR 0
#define FM_CR_SAVE 4
#define FM_LR_SAVE 8 /* MacOSX is NOT following the ABI at the moment.. */
#define FM_SIZE    64   /* minimum frame contents, backptr and LR save. Make sure it is quadaligned */
#define FM_ARG0    56
#define FM_ALIGN(l) ((l+15)&-16)
#define PK_SYSCALL_BEGIN        0x7000


/* redzone is the area under the stack pointer which must be preserved
 * when taking a trap, interrupt etc.
 */
#define FM_REDZONE 224                          /* is ((32-14+1)*4) */

#define COPYIN_ARG0_OFFSET FM_ARG0

#ifdef  MACH_KERNEL
#include <mach_kdb.h>
#else   /* MACH_KERNEL */
#define MACH_KDB 0
#endif  /* MACH_KERNEL */

#define BREAKPOINT_TRAP tw      4,r4,r4

/* There is another definition of ALIGN for .c sources */
#ifndef __LANGUAGE_ASSEMBLY
#define ALIGN 4
#endif /* __LANGUAGE_ASSEMBLY */

#ifndef FALIGN
#define FALIGN 4 /* Align functions on words for now. Cachelines is better */
#endif

#define LB(x,n) n
#if     __STDC__
#define LCL(x)  L ## x
#define EXT(x) _ ## x
#define LEXT(x) _ ## x ## :
#define LBc(x,n) n ## :
#define LBb(x,n) n ## b
#define LBf(x,n) n ## f
#else /* __STDC__ */
#define LCL(x) L/**/x
#define EXT(x) _/**/x
#define LEXT(x) _/**/x/**/:
#define LBc(x,n) n/**/:
#define LBb(x,n) n/**/b
#define LBf(x,n) n/**/f
#endif /* __STDC__ */

#define String  .asciz
#define Value   .word
#define Times(a,b) (a*b)
#define Divide(a,b) (a/b)

#define data16  .byte 0x66
#define addr16  .byte 0x67

#if !GPROF
#define MCOUNT
#endif /* GPROF */

#define ELF_FUNC(x)
#define ELF_DATA(x)
#define ELF_SIZE(x,s)

#define Entry(x,tag)    .text@.align FALIGN@ .globl EXT(x)@ LEXT(x)
#define ENTRY(x,tag)    Entry(x,tag)@MCOUNT
#define ENTRY2(x,y,tag) .text@ .align FALIGN@ .globl EXT(x)@ .globl EXT(y)@ \
                        LEXT(x)@ LEXT(y) @\
                        MCOUNT
#if __STDC__
#define ASENTRY(x)      .globl x @ .align FALIGN; x ## @ MCOUNT
#else
#define ASENTRY(x)      .globl x @ .align FALIGN; x @ MCOUNT
#endif /* __STDC__ */
#define DATA(x)         .globl EXT(x) @ .align ALIGN @ LEXT(x)


#define End(x)          ELF_SIZE(x,.-x)
#define END(x)          End(EXT(x))
#define ENDDATA(x)      END(x)
#define Enddata(x)      End(x)

/* These defines are here for .c files that wish to reference global symbols
 * within __asm__ statements. 
 */
#define CC_SYM_PREFIX "_"

#endif /* _PPC_ASM_H_ */