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Reselect the ioapic register for each read or write.

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This commit is contained in:
fvdl 2003-05-11 15:46:57 +00:00
parent 2bb5ce73f8
commit 31024872ed
1 changed files with 5 additions and 4 deletions
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9
sys/arch/amd64/include/i82093reg.h
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@ -1,4 +1,4 @@
/* $NetBSD: i82093reg.h,v 1.2 2003/05/04 23:46:41 fvdl Exp $ */ /* $NetBSD: i82093reg.h,v 1.3 2003/05/11 15:46:57 fvdl Exp $ */
#include <x86/i82093reg.h> #include <x86/i82093reg.h>
@ -52,11 +52,12 @@
movl IS_PIN(%r14),%esi ;\ movl IS_PIN(%r14),%esi ;\
leaq 0x10(%rsi,%rsi,1),%rsi ;\ leaq 0x10(%rsi,%rsi,1),%rsi ;\
movq IOAPIC_SC_REG(%rdi),%r15 ;\ movq IOAPIC_SC_REG(%rdi),%r15 ;\
movq IOAPIC_SC_DATA(%rdi),%r13 ;\
movl %esi, (%r15) ;\ movl %esi, (%r15) ;\
movq IOAPIC_SC_DATA(%rdi),%r15 ;\ movl (%r13),%r12d ;\
movl (%r15),%esi ;\ andl $~IOAPIC_REDLO_MASK,%r12d ;\
andl $~IOAPIC_REDLO_MASK,%esi ;\
movl %esi,(%r15) ;\ movl %esi,(%r15) ;\
movl %r12d,(%r13) ;\
ioapic_asm_unlock(num) ;\ ioapic_asm_unlock(num) ;\
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