fac515db45
Freescale updates from Scott: << Highlights include 32-bit booke relocatable support, e6500 hardware tablewalk support, various e500 SPE fixes, some new/revived boards, and e6500 deeper idle and altivec powerdown modes. >>
801 lines
21 KiB
C
801 lines
21 KiB
C
/*
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* Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan.
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*/
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#ifndef _ASM_POWERPC_PPC_ASM_H
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#define _ASM_POWERPC_PPC_ASM_H
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#include <linux/stringify.h>
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#include <asm/asm-compat.h>
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#include <asm/processor.h>
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#include <asm/ppc-opcode.h>
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#include <asm/firmware.h>
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#ifndef __ASSEMBLY__
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#error __FILE__ should only be used in assembler files
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#else
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#define SZL (BITS_PER_LONG/8)
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/*
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* Stuff for accurate CPU time accounting.
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* These macros handle transitions between user and system state
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* in exception entry and exit and accumulate time to the
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* user_time and system_time fields in the paca.
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*/
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#ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
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#define ACCOUNT_CPU_USER_ENTRY(ra, rb)
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#define ACCOUNT_CPU_USER_EXIT(ra, rb)
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#define ACCOUNT_STOLEN_TIME
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#else
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#define ACCOUNT_CPU_USER_ENTRY(ra, rb) \
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MFTB(ra); /* get timebase */ \
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ld rb,PACA_STARTTIME_USER(r13); \
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std ra,PACA_STARTTIME(r13); \
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subf rb,rb,ra; /* subtract start value */ \
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ld ra,PACA_USER_TIME(r13); \
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add ra,ra,rb; /* add on to user time */ \
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std ra,PACA_USER_TIME(r13); \
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#define ACCOUNT_CPU_USER_EXIT(ra, rb) \
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MFTB(ra); /* get timebase */ \
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ld rb,PACA_STARTTIME(r13); \
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std ra,PACA_STARTTIME_USER(r13); \
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subf rb,rb,ra; /* subtract start value */ \
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ld ra,PACA_SYSTEM_TIME(r13); \
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add ra,ra,rb; /* add on to system time */ \
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std ra,PACA_SYSTEM_TIME(r13)
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#ifdef CONFIG_PPC_SPLPAR
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#define ACCOUNT_STOLEN_TIME \
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BEGIN_FW_FTR_SECTION; \
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beq 33f; \
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/* from user - see if there are any DTL entries to process */ \
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ld r10,PACALPPACAPTR(r13); /* get ptr to VPA */ \
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ld r11,PACA_DTL_RIDX(r13); /* get log read index */ \
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addi r10,r10,LPPACA_DTLIDX; \
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LDX_BE r10,0,r10; /* get log write index */ \
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cmpd cr1,r11,r10; \
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beq+ cr1,33f; \
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bl .accumulate_stolen_time; \
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ld r12,_MSR(r1); \
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andi. r10,r12,MSR_PR; /* Restore cr0 (coming from user) */ \
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33: \
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END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
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#else /* CONFIG_PPC_SPLPAR */
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#define ACCOUNT_STOLEN_TIME
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#endif /* CONFIG_PPC_SPLPAR */
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#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */
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/*
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* Macros for storing registers into and loading registers from
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* exception frames.
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*/
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#ifdef __powerpc64__
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#define SAVE_GPR(n, base) std n,GPR0+8*(n)(base)
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#define REST_GPR(n, base) ld n,GPR0+8*(n)(base)
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#define SAVE_NVGPRS(base) SAVE_8GPRS(14, base); SAVE_10GPRS(22, base)
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#define REST_NVGPRS(base) REST_8GPRS(14, base); REST_10GPRS(22, base)
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#else
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#define SAVE_GPR(n, base) stw n,GPR0+4*(n)(base)
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#define REST_GPR(n, base) lwz n,GPR0+4*(n)(base)
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#define SAVE_NVGPRS(base) SAVE_GPR(13, base); SAVE_8GPRS(14, base); \
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SAVE_10GPRS(22, base)
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#define REST_NVGPRS(base) REST_GPR(13, base); REST_8GPRS(14, base); \
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REST_10GPRS(22, base)
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#endif
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#define SAVE_2GPRS(n, base) SAVE_GPR(n, base); SAVE_GPR(n+1, base)
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#define SAVE_4GPRS(n, base) SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base)
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#define SAVE_8GPRS(n, base) SAVE_4GPRS(n, base); SAVE_4GPRS(n+4, base)
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#define SAVE_10GPRS(n, base) SAVE_8GPRS(n, base); SAVE_2GPRS(n+8, base)
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#define REST_2GPRS(n, base) REST_GPR(n, base); REST_GPR(n+1, base)
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#define REST_4GPRS(n, base) REST_2GPRS(n, base); REST_2GPRS(n+2, base)
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#define REST_8GPRS(n, base) REST_4GPRS(n, base); REST_4GPRS(n+4, base)
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#define REST_10GPRS(n, base) REST_8GPRS(n, base); REST_2GPRS(n+8, base)
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#define SAVE_FPR(n, base) stfd n,8*TS_FPRWIDTH*(n)(base)
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#define SAVE_2FPRS(n, base) SAVE_FPR(n, base); SAVE_FPR(n+1, base)
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#define SAVE_4FPRS(n, base) SAVE_2FPRS(n, base); SAVE_2FPRS(n+2, base)
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#define SAVE_8FPRS(n, base) SAVE_4FPRS(n, base); SAVE_4FPRS(n+4, base)
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#define SAVE_16FPRS(n, base) SAVE_8FPRS(n, base); SAVE_8FPRS(n+8, base)
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#define SAVE_32FPRS(n, base) SAVE_16FPRS(n, base); SAVE_16FPRS(n+16, base)
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#define REST_FPR(n, base) lfd n,8*TS_FPRWIDTH*(n)(base)
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#define REST_2FPRS(n, base) REST_FPR(n, base); REST_FPR(n+1, base)
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#define REST_4FPRS(n, base) REST_2FPRS(n, base); REST_2FPRS(n+2, base)
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#define REST_8FPRS(n, base) REST_4FPRS(n, base); REST_4FPRS(n+4, base)
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#define REST_16FPRS(n, base) REST_8FPRS(n, base); REST_8FPRS(n+8, base)
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#define REST_32FPRS(n, base) REST_16FPRS(n, base); REST_16FPRS(n+16, base)
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#define SAVE_VR(n,b,base) li b,16*(n); stvx n,base,b
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#define SAVE_2VRS(n,b,base) SAVE_VR(n,b,base); SAVE_VR(n+1,b,base)
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#define SAVE_4VRS(n,b,base) SAVE_2VRS(n,b,base); SAVE_2VRS(n+2,b,base)
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#define SAVE_8VRS(n,b,base) SAVE_4VRS(n,b,base); SAVE_4VRS(n+4,b,base)
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#define SAVE_16VRS(n,b,base) SAVE_8VRS(n,b,base); SAVE_8VRS(n+8,b,base)
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#define SAVE_32VRS(n,b,base) SAVE_16VRS(n,b,base); SAVE_16VRS(n+16,b,base)
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#define REST_VR(n,b,base) li b,16*(n); lvx n,base,b
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#define REST_2VRS(n,b,base) REST_VR(n,b,base); REST_VR(n+1,b,base)
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#define REST_4VRS(n,b,base) REST_2VRS(n,b,base); REST_2VRS(n+2,b,base)
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#define REST_8VRS(n,b,base) REST_4VRS(n,b,base); REST_4VRS(n+4,b,base)
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#define REST_16VRS(n,b,base) REST_8VRS(n,b,base); REST_8VRS(n+8,b,base)
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#define REST_32VRS(n,b,base) REST_16VRS(n,b,base); REST_16VRS(n+16,b,base)
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#ifdef __BIG_ENDIAN__
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#define STXVD2X_ROT(n,b,base) STXVD2X(n,b,base)
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#define LXVD2X_ROT(n,b,base) LXVD2X(n,b,base)
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#else
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#define STXVD2X_ROT(n,b,base) XXSWAPD(n,n); \
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STXVD2X(n,b,base); \
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XXSWAPD(n,n)
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#define LXVD2X_ROT(n,b,base) LXVD2X(n,b,base); \
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XXSWAPD(n,n)
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#endif
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/* Save the lower 32 VSRs in the thread VSR region */
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#define SAVE_VSR(n,b,base) li b,16*(n); STXVD2X_ROT(n,R##base,R##b)
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#define SAVE_2VSRS(n,b,base) SAVE_VSR(n,b,base); SAVE_VSR(n+1,b,base)
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#define SAVE_4VSRS(n,b,base) SAVE_2VSRS(n,b,base); SAVE_2VSRS(n+2,b,base)
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#define SAVE_8VSRS(n,b,base) SAVE_4VSRS(n,b,base); SAVE_4VSRS(n+4,b,base)
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#define SAVE_16VSRS(n,b,base) SAVE_8VSRS(n,b,base); SAVE_8VSRS(n+8,b,base)
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#define SAVE_32VSRS(n,b,base) SAVE_16VSRS(n,b,base); SAVE_16VSRS(n+16,b,base)
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#define REST_VSR(n,b,base) li b,16*(n); LXVD2X_ROT(n,R##base,R##b)
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#define REST_2VSRS(n,b,base) REST_VSR(n,b,base); REST_VSR(n+1,b,base)
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#define REST_4VSRS(n,b,base) REST_2VSRS(n,b,base); REST_2VSRS(n+2,b,base)
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#define REST_8VSRS(n,b,base) REST_4VSRS(n,b,base); REST_4VSRS(n+4,b,base)
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#define REST_16VSRS(n,b,base) REST_8VSRS(n,b,base); REST_8VSRS(n+8,b,base)
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#define REST_32VSRS(n,b,base) REST_16VSRS(n,b,base); REST_16VSRS(n+16,b,base)
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/*
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* b = base register for addressing, o = base offset from register of 1st EVR
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* n = first EVR, s = scratch
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*/
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#define SAVE_EVR(n,s,b,o) evmergehi s,s,n; stw s,o+4*(n)(b)
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#define SAVE_2EVRS(n,s,b,o) SAVE_EVR(n,s,b,o); SAVE_EVR(n+1,s,b,o)
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#define SAVE_4EVRS(n,s,b,o) SAVE_2EVRS(n,s,b,o); SAVE_2EVRS(n+2,s,b,o)
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#define SAVE_8EVRS(n,s,b,o) SAVE_4EVRS(n,s,b,o); SAVE_4EVRS(n+4,s,b,o)
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#define SAVE_16EVRS(n,s,b,o) SAVE_8EVRS(n,s,b,o); SAVE_8EVRS(n+8,s,b,o)
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#define SAVE_32EVRS(n,s,b,o) SAVE_16EVRS(n,s,b,o); SAVE_16EVRS(n+16,s,b,o)
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#define REST_EVR(n,s,b,o) lwz s,o+4*(n)(b); evmergelo n,s,n
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#define REST_2EVRS(n,s,b,o) REST_EVR(n,s,b,o); REST_EVR(n+1,s,b,o)
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#define REST_4EVRS(n,s,b,o) REST_2EVRS(n,s,b,o); REST_2EVRS(n+2,s,b,o)
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#define REST_8EVRS(n,s,b,o) REST_4EVRS(n,s,b,o); REST_4EVRS(n+4,s,b,o)
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#define REST_16EVRS(n,s,b,o) REST_8EVRS(n,s,b,o); REST_8EVRS(n+8,s,b,o)
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#define REST_32EVRS(n,s,b,o) REST_16EVRS(n,s,b,o); REST_16EVRS(n+16,s,b,o)
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/* Macros to adjust thread priority for hardware multithreading */
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#define HMT_VERY_LOW or 31,31,31 # very low priority
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#define HMT_LOW or 1,1,1
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#define HMT_MEDIUM_LOW or 6,6,6 # medium low priority
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#define HMT_MEDIUM or 2,2,2
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#define HMT_MEDIUM_HIGH or 5,5,5 # medium high priority
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#define HMT_HIGH or 3,3,3
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#define HMT_EXTRA_HIGH or 7,7,7 # power7 only
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#ifdef CONFIG_PPC64
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#define ULONG_SIZE 8
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#else
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#define ULONG_SIZE 4
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#endif
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#define __VCPU_GPR(n) (VCPU_GPRS + (n * ULONG_SIZE))
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#define VCPU_GPR(n) __VCPU_GPR(__REG_##n)
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#ifdef __KERNEL__
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#ifdef CONFIG_PPC64
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#define STACKFRAMESIZE 256
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#define __STK_REG(i) (112 + ((i)-14)*8)
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#define STK_REG(i) __STK_REG(__REG_##i)
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#define __STK_PARAM(i) (48 + ((i)-3)*8)
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#define STK_PARAM(i) __STK_PARAM(__REG_##i)
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#define XGLUE(a,b) a##b
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#define GLUE(a,b) XGLUE(a,b)
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#define _GLOBAL(name) \
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.section ".text"; \
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.align 2 ; \
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.globl name; \
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.globl GLUE(.,name); \
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.section ".opd","aw"; \
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name: \
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.quad GLUE(.,name); \
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.quad .TOC.@tocbase; \
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.quad 0; \
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.previous; \
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.type GLUE(.,name),@function; \
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GLUE(.,name):
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#define _INIT_GLOBAL(name) \
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__REF; \
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.align 2 ; \
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.globl name; \
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.globl GLUE(.,name); \
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.section ".opd","aw"; \
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name: \
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.quad GLUE(.,name); \
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.quad .TOC.@tocbase; \
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.quad 0; \
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.previous; \
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.type GLUE(.,name),@function; \
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GLUE(.,name):
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#define _KPROBE(name) \
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.section ".kprobes.text","a"; \
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.align 2 ; \
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.globl name; \
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.globl GLUE(.,name); \
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.section ".opd","aw"; \
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name: \
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.quad GLUE(.,name); \
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.quad .TOC.@tocbase; \
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.quad 0; \
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.previous; \
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.type GLUE(.,name),@function; \
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GLUE(.,name):
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#define _STATIC(name) \
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.section ".text"; \
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.align 2 ; \
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.section ".opd","aw"; \
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name: \
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.quad GLUE(.,name); \
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.quad .TOC.@tocbase; \
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.quad 0; \
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.previous; \
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.type GLUE(.,name),@function; \
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GLUE(.,name):
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#define _INIT_STATIC(name) \
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__REF; \
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.align 2 ; \
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.section ".opd","aw"; \
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name: \
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.quad GLUE(.,name); \
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.quad .TOC.@tocbase; \
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.quad 0; \
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.previous; \
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.type GLUE(.,name),@function; \
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GLUE(.,name):
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#else /* 32-bit */
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#define _ENTRY(n) \
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.globl n; \
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n:
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#define _GLOBAL(n) \
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.text; \
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.stabs __stringify(n:F-1),N_FUN,0,0,n;\
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.globl n; \
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n:
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#define _KPROBE(n) \
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.section ".kprobes.text","a"; \
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.globl n; \
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n:
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#endif
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/*
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* LOAD_REG_IMMEDIATE(rn, expr)
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* Loads the value of the constant expression 'expr' into register 'rn'
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* using immediate instructions only. Use this when it's important not
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* to reference other data (i.e. on ppc64 when the TOC pointer is not
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* valid) and when 'expr' is a constant or absolute address.
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*
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* LOAD_REG_ADDR(rn, name)
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* Loads the address of label 'name' into register 'rn'. Use this when
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* you don't particularly need immediate instructions only, but you need
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* the whole address in one register (e.g. it's a structure address and
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* you want to access various offsets within it). On ppc32 this is
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* identical to LOAD_REG_IMMEDIATE.
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*
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* LOAD_REG_ADDR_PIC(rn, name)
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* Loads the address of label 'name' into register 'run'. Use this when
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* the kernel doesn't run at the linked or relocated address. Please
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* note that this macro will clobber the lr register.
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*
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* LOAD_REG_ADDRBASE(rn, name)
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* ADDROFF(name)
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* LOAD_REG_ADDRBASE loads part of the address of label 'name' into
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* register 'rn'. ADDROFF(name) returns the remainder of the address as
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* a constant expression. ADDROFF(name) is a signed expression < 16 bits
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* in size, so is suitable for use directly as an offset in load and store
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* instructions. Use this when loading/storing a single word or less as:
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* LOAD_REG_ADDRBASE(rX, name)
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* ld rY,ADDROFF(name)(rX)
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*/
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/* Be careful, this will clobber the lr register. */
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#define LOAD_REG_ADDR_PIC(reg, name) \
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bl 0f; \
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0: mflr reg; \
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addis reg,reg,(name - 0b)@ha; \
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addi reg,reg,(name - 0b)@l;
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#ifdef __powerpc64__
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#define LOAD_REG_IMMEDIATE(reg,expr) \
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lis reg,(expr)@highest; \
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ori reg,reg,(expr)@higher; \
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rldicr reg,reg,32,31; \
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oris reg,reg,(expr)@h; \
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ori reg,reg,(expr)@l;
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#define LOAD_REG_ADDR(reg,name) \
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ld reg,name@got(r2)
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#define LOAD_REG_ADDRBASE(reg,name) LOAD_REG_ADDR(reg,name)
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#define ADDROFF(name) 0
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/* offsets for stack frame layout */
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#define LRSAVE 16
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#else /* 32-bit */
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#define LOAD_REG_IMMEDIATE(reg,expr) \
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lis reg,(expr)@ha; \
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addi reg,reg,(expr)@l;
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#define LOAD_REG_ADDR(reg,name) LOAD_REG_IMMEDIATE(reg, name)
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#define LOAD_REG_ADDRBASE(reg, name) lis reg,name@ha
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#define ADDROFF(name) name@l
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/* offsets for stack frame layout */
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#define LRSAVE 4
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#endif
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/* various errata or part fixups */
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#ifdef CONFIG_PPC601_SYNC_FIX
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#define SYNC \
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BEGIN_FTR_SECTION \
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sync; \
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isync; \
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END_FTR_SECTION_IFSET(CPU_FTR_601)
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#define SYNC_601 \
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BEGIN_FTR_SECTION \
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sync; \
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END_FTR_SECTION_IFSET(CPU_FTR_601)
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#define ISYNC_601 \
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BEGIN_FTR_SECTION \
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isync; \
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END_FTR_SECTION_IFSET(CPU_FTR_601)
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#else
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#define SYNC
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#define SYNC_601
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#define ISYNC_601
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|
#endif
|
|
|
|
#if defined(CONFIG_PPC_CELL) || defined(CONFIG_PPC_FSL_BOOK3E)
|
|
#define MFTB(dest) \
|
|
90: mfspr dest, SPRN_TBRL; \
|
|
BEGIN_FTR_SECTION_NESTED(96); \
|
|
cmpwi dest,0; \
|
|
beq- 90b; \
|
|
END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96)
|
|
#elif defined(CONFIG_8xx)
|
|
#define MFTB(dest) mftb dest
|
|
#else
|
|
#define MFTB(dest) mfspr dest, SPRN_TBRL
|
|
#endif
|
|
|
|
#ifndef CONFIG_SMP
|
|
#define TLBSYNC
|
|
#else /* CONFIG_SMP */
|
|
/* tlbsync is not implemented on 601 */
|
|
#define TLBSYNC \
|
|
BEGIN_FTR_SECTION \
|
|
tlbsync; \
|
|
sync; \
|
|
END_FTR_SECTION_IFCLR(CPU_FTR_601)
|
|
#endif
|
|
|
|
#ifdef CONFIG_PPC64
|
|
#define MTOCRF(FXM, RS) \
|
|
BEGIN_FTR_SECTION_NESTED(848); \
|
|
mtcrf (FXM), RS; \
|
|
FTR_SECTION_ELSE_NESTED(848); \
|
|
mtocrf (FXM), RS; \
|
|
ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_NOEXECUTE, 848)
|
|
|
|
/*
|
|
* PPR restore macros used in entry_64.S
|
|
* Used for P7 or later processors
|
|
*/
|
|
#define HMT_MEDIUM_LOW_HAS_PPR \
|
|
BEGIN_FTR_SECTION_NESTED(944) \
|
|
HMT_MEDIUM_LOW; \
|
|
END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,944)
|
|
|
|
#define SET_DEFAULT_THREAD_PPR(ra, rb) \
|
|
BEGIN_FTR_SECTION_NESTED(945) \
|
|
lis ra,INIT_PPR@highest; /* default ppr=3 */ \
|
|
ld rb,PACACURRENT(r13); \
|
|
sldi ra,ra,32; /* 11- 13 bits are used for ppr */ \
|
|
std ra,TASKTHREADPPR(rb); \
|
|
END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,945)
|
|
|
|
#endif
|
|
|
|
/*
|
|
* This instruction is not implemented on the PPC 603 or 601; however, on
|
|
* the 403GCX and 405GP tlbia IS defined and tlbie is not.
|
|
* All of these instructions exist in the 8xx, they have magical powers,
|
|
* and they must be used.
|
|
*/
|
|
|
|
#if !defined(CONFIG_4xx) && !defined(CONFIG_8xx)
|
|
#define tlbia \
|
|
li r4,1024; \
|
|
mtctr r4; \
|
|
lis r4,KERNELBASE@h; \
|
|
0: tlbie r4; \
|
|
addi r4,r4,0x1000; \
|
|
bdnz 0b
|
|
#endif
|
|
|
|
|
|
#ifdef CONFIG_IBM440EP_ERR42
|
|
#define PPC440EP_ERR42 isync
|
|
#else
|
|
#define PPC440EP_ERR42
|
|
#endif
|
|
|
|
/* The following stops all load and store data streams associated with stream
|
|
* ID (ie. streams created explicitly). The embedded and server mnemonics for
|
|
* dcbt are different so we use machine "power4" here explicitly.
|
|
*/
|
|
#define DCBT_STOP_ALL_STREAM_IDS(scratch) \
|
|
.machine push ; \
|
|
.machine "power4" ; \
|
|
lis scratch,0x60000000@h; \
|
|
dcbt r0,scratch,0b01010; \
|
|
.machine pop
|
|
|
|
/*
|
|
* toreal/fromreal/tophys/tovirt macros. 32-bit BookE makes them
|
|
* keep the address intact to be compatible with code shared with
|
|
* 32-bit classic.
|
|
*
|
|
* On the other hand, I find it useful to have them behave as expected
|
|
* by their name (ie always do the addition) on 64-bit BookE
|
|
*/
|
|
#if defined(CONFIG_BOOKE) && !defined(CONFIG_PPC64)
|
|
#define toreal(rd)
|
|
#define fromreal(rd)
|
|
|
|
/*
|
|
* We use addis to ensure compatibility with the "classic" ppc versions of
|
|
* these macros, which use rs = 0 to get the tophys offset in rd, rather than
|
|
* converting the address in r0, and so this version has to do that too
|
|
* (i.e. set register rd to 0 when rs == 0).
|
|
*/
|
|
#define tophys(rd,rs) \
|
|
addis rd,rs,0
|
|
|
|
#define tovirt(rd,rs) \
|
|
addis rd,rs,0
|
|
|
|
#elif defined(CONFIG_PPC64)
|
|
#define toreal(rd) /* we can access c000... in real mode */
|
|
#define fromreal(rd)
|
|
|
|
#define tophys(rd,rs) \
|
|
clrldi rd,rs,2
|
|
|
|
#define tovirt(rd,rs) \
|
|
rotldi rd,rs,16; \
|
|
ori rd,rd,((KERNELBASE>>48)&0xFFFF);\
|
|
rotldi rd,rd,48
|
|
#else
|
|
/*
|
|
* On APUS (Amiga PowerPC cpu upgrade board), we don't know the
|
|
* physical base address of RAM at compile time.
|
|
*/
|
|
#define toreal(rd) tophys(rd,rd)
|
|
#define fromreal(rd) tovirt(rd,rd)
|
|
|
|
#define tophys(rd,rs) \
|
|
0: addis rd,rs,-PAGE_OFFSET@h; \
|
|
.section ".vtop_fixup","aw"; \
|
|
.align 1; \
|
|
.long 0b; \
|
|
.previous
|
|
|
|
#define tovirt(rd,rs) \
|
|
0: addis rd,rs,PAGE_OFFSET@h; \
|
|
.section ".ptov_fixup","aw"; \
|
|
.align 1; \
|
|
.long 0b; \
|
|
.previous
|
|
#endif
|
|
|
|
#ifdef CONFIG_PPC_BOOK3S_64
|
|
#define RFI rfid
|
|
#define MTMSRD(r) mtmsrd r
|
|
#define MTMSR_EERI(reg) mtmsrd reg,1
|
|
#else
|
|
#define FIX_SRR1(ra, rb)
|
|
#ifndef CONFIG_40x
|
|
#define RFI rfi
|
|
#else
|
|
#define RFI rfi; b . /* Prevent prefetch past rfi */
|
|
#endif
|
|
#define MTMSRD(r) mtmsr r
|
|
#define MTMSR_EERI(reg) mtmsr reg
|
|
#define CLR_TOP32(r)
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
/* The boring bits... */
|
|
|
|
/* Condition Register Bit Fields */
|
|
|
|
#define cr0 0
|
|
#define cr1 1
|
|
#define cr2 2
|
|
#define cr3 3
|
|
#define cr4 4
|
|
#define cr5 5
|
|
#define cr6 6
|
|
#define cr7 7
|
|
|
|
|
|
/*
|
|
* General Purpose Registers (GPRs)
|
|
*
|
|
* The lower case r0-r31 should be used in preference to the upper
|
|
* case R0-R31 as they provide more error checking in the assembler.
|
|
* Use R0-31 only when really nessesary.
|
|
*/
|
|
|
|
#define r0 %r0
|
|
#define r1 %r1
|
|
#define r2 %r2
|
|
#define r3 %r3
|
|
#define r4 %r4
|
|
#define r5 %r5
|
|
#define r6 %r6
|
|
#define r7 %r7
|
|
#define r8 %r8
|
|
#define r9 %r9
|
|
#define r10 %r10
|
|
#define r11 %r11
|
|
#define r12 %r12
|
|
#define r13 %r13
|
|
#define r14 %r14
|
|
#define r15 %r15
|
|
#define r16 %r16
|
|
#define r17 %r17
|
|
#define r18 %r18
|
|
#define r19 %r19
|
|
#define r20 %r20
|
|
#define r21 %r21
|
|
#define r22 %r22
|
|
#define r23 %r23
|
|
#define r24 %r24
|
|
#define r25 %r25
|
|
#define r26 %r26
|
|
#define r27 %r27
|
|
#define r28 %r28
|
|
#define r29 %r29
|
|
#define r30 %r30
|
|
#define r31 %r31
|
|
|
|
|
|
/* Floating Point Registers (FPRs) */
|
|
|
|
#define fr0 0
|
|
#define fr1 1
|
|
#define fr2 2
|
|
#define fr3 3
|
|
#define fr4 4
|
|
#define fr5 5
|
|
#define fr6 6
|
|
#define fr7 7
|
|
#define fr8 8
|
|
#define fr9 9
|
|
#define fr10 10
|
|
#define fr11 11
|
|
#define fr12 12
|
|
#define fr13 13
|
|
#define fr14 14
|
|
#define fr15 15
|
|
#define fr16 16
|
|
#define fr17 17
|
|
#define fr18 18
|
|
#define fr19 19
|
|
#define fr20 20
|
|
#define fr21 21
|
|
#define fr22 22
|
|
#define fr23 23
|
|
#define fr24 24
|
|
#define fr25 25
|
|
#define fr26 26
|
|
#define fr27 27
|
|
#define fr28 28
|
|
#define fr29 29
|
|
#define fr30 30
|
|
#define fr31 31
|
|
|
|
/* AltiVec Registers (VPRs) */
|
|
|
|
#define vr0 0
|
|
#define vr1 1
|
|
#define vr2 2
|
|
#define vr3 3
|
|
#define vr4 4
|
|
#define vr5 5
|
|
#define vr6 6
|
|
#define vr7 7
|
|
#define vr8 8
|
|
#define vr9 9
|
|
#define vr10 10
|
|
#define vr11 11
|
|
#define vr12 12
|
|
#define vr13 13
|
|
#define vr14 14
|
|
#define vr15 15
|
|
#define vr16 16
|
|
#define vr17 17
|
|
#define vr18 18
|
|
#define vr19 19
|
|
#define vr20 20
|
|
#define vr21 21
|
|
#define vr22 22
|
|
#define vr23 23
|
|
#define vr24 24
|
|
#define vr25 25
|
|
#define vr26 26
|
|
#define vr27 27
|
|
#define vr28 28
|
|
#define vr29 29
|
|
#define vr30 30
|
|
#define vr31 31
|
|
|
|
/* VSX Registers (VSRs) */
|
|
|
|
#define vsr0 0
|
|
#define vsr1 1
|
|
#define vsr2 2
|
|
#define vsr3 3
|
|
#define vsr4 4
|
|
#define vsr5 5
|
|
#define vsr6 6
|
|
#define vsr7 7
|
|
#define vsr8 8
|
|
#define vsr9 9
|
|
#define vsr10 10
|
|
#define vsr11 11
|
|
#define vsr12 12
|
|
#define vsr13 13
|
|
#define vsr14 14
|
|
#define vsr15 15
|
|
#define vsr16 16
|
|
#define vsr17 17
|
|
#define vsr18 18
|
|
#define vsr19 19
|
|
#define vsr20 20
|
|
#define vsr21 21
|
|
#define vsr22 22
|
|
#define vsr23 23
|
|
#define vsr24 24
|
|
#define vsr25 25
|
|
#define vsr26 26
|
|
#define vsr27 27
|
|
#define vsr28 28
|
|
#define vsr29 29
|
|
#define vsr30 30
|
|
#define vsr31 31
|
|
#define vsr32 32
|
|
#define vsr33 33
|
|
#define vsr34 34
|
|
#define vsr35 35
|
|
#define vsr36 36
|
|
#define vsr37 37
|
|
#define vsr38 38
|
|
#define vsr39 39
|
|
#define vsr40 40
|
|
#define vsr41 41
|
|
#define vsr42 42
|
|
#define vsr43 43
|
|
#define vsr44 44
|
|
#define vsr45 45
|
|
#define vsr46 46
|
|
#define vsr47 47
|
|
#define vsr48 48
|
|
#define vsr49 49
|
|
#define vsr50 50
|
|
#define vsr51 51
|
|
#define vsr52 52
|
|
#define vsr53 53
|
|
#define vsr54 54
|
|
#define vsr55 55
|
|
#define vsr56 56
|
|
#define vsr57 57
|
|
#define vsr58 58
|
|
#define vsr59 59
|
|
#define vsr60 60
|
|
#define vsr61 61
|
|
#define vsr62 62
|
|
#define vsr63 63
|
|
|
|
/* SPE Registers (EVPRs) */
|
|
|
|
#define evr0 0
|
|
#define evr1 1
|
|
#define evr2 2
|
|
#define evr3 3
|
|
#define evr4 4
|
|
#define evr5 5
|
|
#define evr6 6
|
|
#define evr7 7
|
|
#define evr8 8
|
|
#define evr9 9
|
|
#define evr10 10
|
|
#define evr11 11
|
|
#define evr12 12
|
|
#define evr13 13
|
|
#define evr14 14
|
|
#define evr15 15
|
|
#define evr16 16
|
|
#define evr17 17
|
|
#define evr18 18
|
|
#define evr19 19
|
|
#define evr20 20
|
|
#define evr21 21
|
|
#define evr22 22
|
|
#define evr23 23
|
|
#define evr24 24
|
|
#define evr25 25
|
|
#define evr26 26
|
|
#define evr27 27
|
|
#define evr28 28
|
|
#define evr29 29
|
|
#define evr30 30
|
|
#define evr31 31
|
|
|
|
/* some stab codes */
|
|
#define N_FUN 36
|
|
#define N_RSYM 64
|
|
#define N_SLINE 68
|
|
#define N_SO 100
|
|
|
|
/*
|
|
* Create an endian fixup trampoline
|
|
*
|
|
* This starts with a "tdi 0,0,0x48" instruction which is
|
|
* essentially a "trap never", and thus akin to a nop.
|
|
*
|
|
* The opcode for this instruction read with the wrong endian
|
|
* however results in a b . + 8
|
|
*
|
|
* So essentially we use that trick to execute the following
|
|
* trampoline in "reverse endian" if we are running with the
|
|
* MSR_LE bit set the "wrong" way for whatever endianness the
|
|
* kernel is built for.
|
|
*/
|
|
|
|
#ifdef CONFIG_PPC_BOOK3E
|
|
#define FIXUP_ENDIAN
|
|
#else
|
|
#define FIXUP_ENDIAN \
|
|
tdi 0,0,0x48; /* Reverse endian of b . + 8 */ \
|
|
b $+36; /* Skip trampoline if endian is good */ \
|
|
.long 0x05009f42; /* bcl 20,31,$+4 */ \
|
|
.long 0xa602487d; /* mflr r10 */ \
|
|
.long 0x1c004a39; /* addi r10,r10,28 */ \
|
|
.long 0xa600607d; /* mfmsr r11 */ \
|
|
.long 0x01006b69; /* xori r11,r11,1 */ \
|
|
.long 0xa6035a7d; /* mtsrr0 r10 */ \
|
|
.long 0xa6037b7d; /* mtsrr1 r11 */ \
|
|
.long 0x2400004c /* rfid */
|
|
#endif /* !CONFIG_PPC_BOOK3E */
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* _ASM_POWERPC_PPC_ASM_H */
|