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INTR_TYPE_FAST / FAST_INTR interrupts (currently just serial interrupts)

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have their own lock and do not need the MP lock.  The SMP cleanup was
    a little too conservative in MP locking fast interrupts but at least
    it's trivial to fix.  MFC soon.

Submitted by: bde
This commit is contained in:
Matthew Dillon 2000-06-06 15:28:00 +00:00
parent 18d8a22b61
commit 50ed7dfec0
3 changed files with 0 additions and 39 deletions
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13
sys/amd64/amd64/apic_vector.S
View File

@ -9,17 +9,6 @@
#include "i386/isa/intr_machdep.h"
/*
* Interrupts must be enabled while waiting for the MP lock.
*/
#define GET_FAST_INTR_LOCK \
sti; call _get_mplock; cli
#define REL_FAST_INTR_LOCK \
movl $_mp_lock, %edx ; /* GIANT_LOCK */ \
call _MPrellock_edx
/* convert an absolute IRQ# into a bitmask */
#define IRQ_BIT(irq_num) (1 << (irq_num))
@ -48,9 +37,7 @@ IDTVEC(vec_name) ; \
mov %ax,%fs ; \
FAKE_MCOUNT((5+ACTUALLY_PUSHED)*4(%esp)) ; \
pushl _intr_unit + (irq_num) * 4 ; \
GET_FAST_INTR_LOCK ; \
call *_intr_handler + (irq_num) * 4 ; /* do the work ASAP */ \
REL_FAST_INTR_LOCK ; \
addl $4, %esp ; \
movl $0, lapic_eoi ; \
lock ; \

13
sys/i386/i386/apic_vector.s
View File

@ -9,17 +9,6 @@
#include "i386/isa/intr_machdep.h"
/*
* Interrupts must be enabled while waiting for the MP lock.
*/
#define GET_FAST_INTR_LOCK \
sti; call _get_mplock; cli
#define REL_FAST_INTR_LOCK \
movl $_mp_lock, %edx ; /* GIANT_LOCK */ \
call _MPrellock_edx
/* convert an absolute IRQ# into a bitmask */
#define IRQ_BIT(irq_num) (1 << (irq_num))
@ -48,9 +37,7 @@ IDTVEC(vec_name) ; \
mov %ax,%fs ; \
FAKE_MCOUNT((5+ACTUALLY_PUSHED)*4(%esp)) ; \
pushl _intr_unit + (irq_num) * 4 ; \
GET_FAST_INTR_LOCK ; \
call *_intr_handler + (irq_num) * 4 ; /* do the work ASAP */ \
REL_FAST_INTR_LOCK ; \
addl $4, %esp ; \
movl $0, lapic_eoi ; \
lock ; \

13
sys/i386/isa/apic_vector.s
View File

@ -9,17 +9,6 @@
#include "i386/isa/intr_machdep.h"
/*
* Interrupts must be enabled while waiting for the MP lock.
*/
#define GET_FAST_INTR_LOCK \
sti; call _get_mplock; cli
#define REL_FAST_INTR_LOCK \
movl $_mp_lock, %edx ; /* GIANT_LOCK */ \
call _MPrellock_edx
/* convert an absolute IRQ# into a bitmask */
#define IRQ_BIT(irq_num) (1 << (irq_num))
@ -48,9 +37,7 @@ IDTVEC(vec_name) ; \
mov %ax,%fs ; \
FAKE_MCOUNT((5+ACTUALLY_PUSHED)*4(%esp)) ; \
pushl _intr_unit + (irq_num) * 4 ; \
GET_FAST_INTR_LOCK ; \
call *_intr_handler + (irq_num) * 4 ; /* do the work ASAP */ \
REL_FAST_INTR_LOCK ; \
addl $4, %esp ; \
movl $0, lapic_eoi ; \
lock ; \