diff options
| author | KATO Takenori <kato@FreeBSD.org> | 1997-08-24 11:09:36 +0000 |
|---|---|---|
| committer | KATO Takenori <kato@FreeBSD.org> | 1997-08-24 11:09:36 +0000 |
| commit | 9f23ef9d3ccb61fccff510d4b6c133600fc1dbf3 (patch) | |
| tree | 04e4e97b70e5cf2ac96fd92602d52bdcf806f042 | |
| parent | ca4da38dc6b025b260ac492773f4a3163f0bddcf (diff) | |
Notes
| -rw-r--r-- | sys/pc98/i386/microtime.s | 39 |
1 files changed, 10 insertions, 29 deletions
diff --git a/sys/pc98/i386/microtime.s b/sys/pc98/i386/microtime.s index fd007dc4e7ca..211c7470f626 100644 --- a/sys/pc98/i386/microtime.s +++ b/sys/pc98/i386/microtime.s @@ -32,16 +32,13 @@ * SUCH DAMAGE. * * from: Steve McCanne's microtime code - * $Id: microtime.s,v 1.12 1997/07/20 11:56:48 kato Exp $ + * $Id: microtime.s,v 1.13 1997/07/21 13:12:45 kato Exp $ */ #include "opt_cpu.h" #include <machine/asmacros.h> - -#ifdef APIC_IO -#include <machine/smptests.h> /** NEW STRATEGY, APIC_PIN0_TIMER */ -#endif /* APIC_IO */ +#include <machine/param.h> #include <i386/isa/icu.h> #ifdef PC98 @@ -118,21 +115,18 @@ ENTRY(microtime) movl _timer0_max_count, %edx /* prepare for 2 uses */ #ifdef APIC_IO -#ifdef NEW_STRATEGY - +#if defined(REAL_MCPL) /* XXX do we need this??? */ + pushl %ecx /* s_lock destroys %eax, %ecx */ + CPL_LOCK /* MP-safe, INTs disabled above */ + popl %ecx /* restore %ecx */ movl _ipending, %eax + movl $0, _cpl_lock /* s_unlock would destroy %eax */ testl %eax, _mask8254 /* is soft timer interrupt pending? */ - -#else /** NEW_STRATEGY */ - -#ifdef APIC_PIN0_TIMER - testl $IRQ0, _ipending /* is soft timer interrupt pending? */ -#else +#else /* REAL_MCPL */ + /** XXX FIXME: take our chances with a race, is this OK? */ movl _ipending, %eax testl %eax, _mask8254 /* is soft timer interrupt pending? */ -#endif /* APIC_PIN0_TIMER */ - -#endif /** NEW_STRATEGY */ +#endif /* REAL_MCPL */ #else testb $IRQ0, _ipending /* is soft timer interrupt pending? */ #endif /* APIC_IO */ @@ -143,21 +137,8 @@ ENTRY(microtime) jbe 1f #ifdef APIC_IO -#ifdef NEW_STRATEGY - movl lapic_irr1, %eax /** XXX assumption: IRQ0-24 */ testl %eax, _mask8254 /* is hard timer interrupt pending? */ - -#else /** NEW_STRATEGY */ - -#ifdef APIC_PIN0_TIMER - testl $IRQ0, lapic_irr1 -#else - movl lapic_irr1, %eax /** XXX assumption: IRQ0-24 */ - testl %eax, _mask8254 /* is hard timer interrupt pending? */ -#endif /* APIC_PIN0_TIMER */ - -#endif /** NEW_STRATEGY */ #else inb $IO_ICU1, %al /* read IRR in ICU */ testb $IRQ0, %al /* is hard timer interrupt pending? */ |