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Add symbolic offsets for what's in cpu save locations. 

Add a PPC64 variant of mftb
This commit is contained in:
matt 2003-08-02 19:35:26 +00:00
parent 16b74086ed
commit c9d56ac39d
1 changed files with 20 additions and 5 deletions
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25
sys/arch/powerpc/include/cpu.h
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@ -1,4 +1,4 @@
/* $NetBSD: cpu.h,v 1.31 2003/07/25 10:12:45 scw Exp $ */
/* $NetBSD: cpu.h,v 1.32 2003/08/02 19:35:26 matt Exp $ */
/*
* Copyright (C) 1999 Wolfgang Solfrank.
@ -79,10 +79,20 @@ struct cpu_info {
int ci_intrdepth;
char *ci_intstk;
char *ci_spillstk;
register_t ci_tempsave[8];
register_t ci_ddbsave[8];
register_t ci_ipkdbsave[8];
register_t ci_disisave[4];
#define CPUSAVE_LEN 8
register_t ci_tempsave[CPUSAVE_LEN];
register_t ci_ddbsave[CPUSAVE_LEN];
register_t ci_ipkdbsave[CPUSAVE_LEN];
#define CPUSAVE_R28 0 /* where r28 gets saved */
#define CPUSAVE_R29 1 /* where r29 gets saved */
#define CPUSAVE_R30 2 /* where r30 gets saved */
#define CPUSAVE_R31 3 /* where r31 gets saved */
#define CPUSAVE_DAR 4 /* where SPR_DAR gets saved */
#define CPUSAVE_DSISR 5 /* where SPR_DSISR gets saved */
#define CPUSAVE_SRR0 6 /* where SRR0 gets saved */
#define CPUSAVE_SRR1 7 /* where SRR1 gets saved */
#define DISISAVE_LEN 4
register_t ci_disisave[DISISAVE_LEN];
struct cache_info ci_ci;
struct sysmon_envsys ci_sysmon;
struct envsys_tre_data ci_tau_info;
@ -190,6 +200,10 @@ static __inline uint64_t
mftb(void)
{
uint64_t tb;
#ifdef _LP64
__asm __volatile ("mftb %0" : "=r"(tb));
#else
int tmp;
__asm __volatile (
@ -205,6 +219,7 @@ mftb(void)
" cmplw %0,%1 \n"
" bne- 1b \n"
: "=r" (tb), "=r"(tmp) :: "cr0");
#endif
return tb;
}