Source-Changes-HG archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
[src/trunk]: src/sys/arch/x68k Remove obsolete ssir stuff which was used for ...
details: https://anonhg.NetBSD.org/src/rev/6f8c7e5ab2ac
branches: trunk
changeset: 327976:6f8c7e5ab2ac
user: tsutsui <tsutsui%NetBSD.org@localhost>
date: Sat Mar 22 21:49:18 2014 +0000
description:
Remove obsolete ssir stuff which was used for pre-5.0 softintr(9).
No visible problem on X68030.
diffstat:
sys/arch/x68k/include/intr.h | 14 ++++---
sys/arch/x68k/x68k/locore.s | 77 ++++++-------------------------------------
sys/arch/x68k/x68k/machdep.c | 5 +-
3 files changed, 21 insertions(+), 75 deletions(-)
diffs (187 lines):
diff -r 3b43bf9f2653 -r 6f8c7e5ab2ac sys/arch/x68k/include/intr.h
--- a/sys/arch/x68k/include/intr.h Sat Mar 22 21:42:44 2014 +0000
+++ b/sys/arch/x68k/include/intr.h Sat Mar 22 21:49:18 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: intr.h,v 1.20 2008/06/23 01:49:31 isaki Exp $ */
+/* $NetBSD: intr.h,v 1.21 2014/03/22 21:49:18 tsutsui Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -34,8 +34,7 @@
#include <machine/psl.h>
-/* spl0 requires checking for software interrupts */
-void spl0(void);
+#define spl0() _spl0()
#define splsoftbio() splraise1()
#define splsoftclock() splraise1()
@@ -48,9 +47,6 @@
#define splnone() spl0()
#define splzs() splraise5() /* disallow serial interrupts */
-/* watch out for side effects */
-#define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0())
-
#define IPL_NONE 0
#define IPL_SOFTCLOCK 1
#define IPL_SOFTBIO 2
@@ -82,4 +78,10 @@
return _splraise(icookie._psl);
}
+static inline void
+splx(int sr)
+{
+
+ __asm volatile("movew %0,%%sr" : : "di" (sr));
+}
#endif /* !_X68K_INTR_H_ */
diff -r 3b43bf9f2653 -r 6f8c7e5ab2ac sys/arch/x68k/x68k/locore.s
--- a/sys/arch/x68k/x68k/locore.s Sat Mar 22 21:42:44 2014 +0000
+++ b/sys/arch/x68k/x68k/locore.s Sat Mar 22 21:49:18 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: locore.s,v 1.116 2014/03/22 15:59:07 tsutsui Exp $ */
+/* $NetBSD: locore.s,v 1.117 2014/03/22 21:49:18 tsutsui Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@@ -502,14 +502,8 @@
movl %d0,%sp@- | push syscall number
jbsr _C_LABEL(syscall) | handle it
addql #4,%sp | pop syscall arg
- tstl _C_LABEL(astpending)
- jne Lrei2
- tstb _C_LABEL(ssir)
- jeq Ltrap1
- movw #SPL1,%sr
- tstb _C_LABEL(ssir)
- jne Lsir1
-Ltrap1:
+ tstl _C_LABEL(astpending) | AST pending?
+ jne Lrei | yes, handle it via trap
movl %sp@(FR_SP),%a0 | grab and restore
movl %a0,%usp | user SP
moveml %sp@+,#0x7FFF | restore most registers
@@ -737,20 +731,23 @@
ASENTRY_NOPROFILE(rei)
tstl _C_LABEL(astpending) | AST pending?
- jeq Lchksir | no, go check for SIR
-Lrei1:
+ jne 1f | no, done
+ rte
+1:
btst #5,%sp@ | yes, are we returning to user mode?
- jne Lchksir | no, go check for SIR
+ beq 2f | no, done
+ rte
+2:
movw #PSL_LOWIPL,%sr | lower SPL
clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all registers
movl %usp,%a1 | including
movl %a1,%sp@(FR_SP) | the users SP
-Lrei2:
+Lrei:
clrl %sp@- | VA == none
clrl %sp@- | code == none
movl #T_ASTFLT,%sp@- | type == async system trap
- pea %sp@(12) | fp = trap frame address
+ pea %sp@(12) | fp == trap frame address
jbsr _C_LABEL(trap) | go handle it
lea %sp@(16),%sp | pop value args
movl %sp@(FR_SP),%a0 | restore user SP
@@ -771,38 +768,6 @@
moveml %sp@+,#0x7FFF | restore user registers
movl %sp@,%sp | and our SP
rte | and do real RTE
-Lchksir:
- tstb _C_LABEL(ssir) | SIR pending?
- jeq Ldorte | no, all done
- movl %d0,%sp@- | need a scratch register
- movw %sp@(4),%d0 | get SR
- andw #PSL_IPL7,%d0 | mask all but IPL
- jne Lnosir | came from interrupt, no can do
- movl %sp@+,%d0 | restore scratch register
-Lgotsir:
- movw #SPL1,%sr | prevent others from servicing int
- tstb _C_LABEL(ssir) | too late?
- jeq Ldorte | yes, oh well...
- clrl %sp@- | stack adjust
- moveml #0xFFFF,%sp@- | save all registers
- movl %usp,%a1 | including
- movl %a1,%sp@(FR_SP) | the users SP
-Lsir1:
- clrl %sp@- | VA == none
- clrl %sp@- | code == none
- movl #T_SSIR,%sp@- | type == software interrupt
- pea %sp@(12) | fp = trap frame address
- jbsr _C_LABEL(trap) | go handle it
- lea %sp@(16),%sp | pop value args
- movl %sp@(FR_SP),%a0 | restore
- movl %a0,%usp | user SP
- moveml %sp@+,#0x7FFF | and all remaining registers
- addql #8,%sp | pop SP and stack adjust
- rte
-Lnosir:
- movl %sp@+,%d0 | restore scratch register
-Ldorte:
- rte | real return
/*
* Use common m68k sigcode.
@@ -909,26 +874,6 @@
rts
/*
- * Set processor priority level calls. Most are implemented with
- * inline asm expansions. However, spl0 requires special handling
- * as we need to check for our emulated software interrupts.
- */
-
-ENTRY(spl0)
- moveq #0,%d0
- movw %sr,%d0 | get old SR for return
- movw #PSL_LOWIPL,%sr | restore new SR
- tstb _C_LABEL(ssir) | software interrupt pending?
- jeq Lspldone | no, all done
- subql #4,%sp | make room for RTE frame
- movl %sp@(4),%sp@(2) | position return address
- clrw %sp@(6) | set frame type 0
- movw #PSL_LOWIPL,%sp@ | and new SR
- jra Lgotsir | go handle it
-Lspldone:
- rts
-
-/*
* _delay(u_int N)
*
* Delay for at least (N/256) microseconds.
diff -r 3b43bf9f2653 -r 6f8c7e5ab2ac sys/arch/x68k/x68k/machdep.c
--- a/sys/arch/x68k/x68k/machdep.c Sat Mar 22 21:42:44 2014 +0000
+++ b/sys/arch/x68k/x68k/machdep.c Sat Mar 22 21:49:18 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: machdep.c,v 1.187 2013/10/27 02:06:06 tsutsui Exp $ */
+/* $NetBSD: machdep.c,v 1.188 2014/03/22 21:49:18 tsutsui Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@@ -39,7 +39,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.187 2013/10/27 02:06:06 tsutsui Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.188 2014/03/22 21:49:18 tsutsui Exp $");
#include "opt_ddb.h"
#include "opt_kgdb.h"
@@ -1218,7 +1218,6 @@
#endif
}
-volatile int ssir;
int idepth;
bool
Home |
Main Index |
Thread Index |
Old Index