[src/trunk]: src/sys/arch/powerpc/include Add symbolic offsets for what's in ...

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2a9dc8035516
branches:  trunk
changeset: 550247:2a9dc8035516
user:      matt <matt%NetBSD.org@localhost>
date:      Sat Aug 02 19:35:26 2003 +0000

description:
Add symbolic offsets for what's in cpu save locations.
Add a PPC64 variant of mftb

diffstat:

 sys/arch/powerpc/include/cpu.h |  25 ++++++++++++++++++++-----
 1 files changed, 20 insertions(+), 5 deletions(-)

diffs (53 lines):

diff -r 0457371b7c75 -r 2a9dc8035516 sys/arch/powerpc/include/cpu.h
--- a/sys/arch/powerpc/include/cpu.h    Sat Aug 02 19:21:48 2003 +0000
+++ b/sys/arch/powerpc/include/cpu.h    Sat Aug 02 19:35:26 2003 +0000
@@ -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 @@
        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 @@
 mftb(void)
 {
        uint64_t tb;
+
+#ifdef _LP64
+       __asm __volatile ("mftb %0" : "=r"(tb));
+#else
        int tmp;
 
        __asm __volatile (
@@ -205,6 +219,7 @@
 "      cmplw %0,%1     \n"
 "      bne- 1b         \n"
        : "=r" (tb), "=r"(tmp) :: "cr0");
+#endif
 
        return tb;
 }