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The previous optimization of the interrupt handlers was a bit too 

agressive.  Being a little more conservative pays the biggest dividend.
This commit is contained in:
scottr 1997-03-04 04:11:52 +00:00
parent 1a20e46715
commit 956ec2a47c
1 changed files with 9 additions and 11 deletions
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20
sys/arch/mac68k/mac68k/via.c
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@ -1,4 +1,4 @@
/* $NetBSD: via.c,v 1.57 1997/03/03 04:19:06 scottr Exp $ */
/* $NetBSD: via.c,v 1.58 1997/03/04 04:11:52 scottr Exp $ */
/*-
* Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
@ -201,8 +201,8 @@ void
via1_intr(fp)
struct frame *fp;
{
u_int8_t intbits;
u_int bitnum, mask;
u_int8_t intbits, bitnum;
u_int mask;
intbits = via_reg(VIA1, vIFR); /* get interrupts pending */
intbits &= via_reg(VIA1, vIER); /* only care about enabled */
@ -232,8 +232,8 @@ void
via2_intr(fp)
struct frame *fp;
{
u_int8_t intbits;
u_int bitnum, mask;
u_int8_t intbits, bitnum;
u_int mask;
intbits = via2_reg(vIFR); /* get interrupts pending */
intbits &= via2_reg(vIER); /* only care about enabled */
@ -257,8 +257,8 @@ void
rbv_intr(fp)
struct frame *fp;
{
u_int8_t intbits;
u_int bitnum, mask;
u_int8_t intbits, bitnum;
u_int mask;
intbits = (via2_reg(vIFR + rIFR) & via2_reg(vIER + rIER));
@ -345,8 +345,7 @@ void
via2_nubus_intr(bitarg)
void *bitarg;
{
u_int8_t intbits;
u_int i, mask;
u_int8_t i, intbits, mask;
via2_reg(vIFR) = V2IF_SLOTINT;
while ((intbits = (~via2_reg(vBufA)) & nubus_intr_mask)) {
@ -367,8 +366,7 @@ void
rbv_nubus_intr(bitarg)
void *bitarg;
{
u_int8_t intbits;
u_int i, mask;
u_int8_t i, intbits, mask;
via2_reg(rIFR) = 0x80 | V2IF_SLOTINT;
while ((intbits = (~via2_reg(rBufA)) & via2_reg(rSlotInt))) {