[src/trunk]: src/sys/arch/arm26/arm26 Add fiq_downgrade_dont_disable, which d...

[bjh21 <bjh21%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/16d4d5e1e139
branches:  trunk
changeset: 515350:16d4d5e1e139
user:      bjh21 <bjh21%NetBSD.org@localhost>
date:      Sat Sep 22 17:16:18 2001 +0000

description:
Add fiq_downgrade_dont_disable, which does what fiq_downgrade does, but
doesn't disable FIQs in the process.

diffstat:

 sys/arch/arm26/arm26/fiq_util.S |  16 ++++++++++++++--
 1 files changed, 14 insertions(+), 2 deletions(-)

diffs (37 lines):

diff -r c20075b9bad0 -r 16d4d5e1e139 sys/arch/arm26/arm26/fiq_util.S
--- a/sys/arch/arm26/arm26/fiq_util.S   Sat Sep 22 16:46:41 2001 +0000
+++ b/sys/arch/arm26/arm26/fiq_util.S   Sat Sep 22 17:16:18 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fiq_util.S,v 1.2 2001/08/21 22:47:17 bjh21 Exp $       */
+/*     $NetBSD: fiq_util.S,v 1.3 2001/09/22 17:16:18 bjh21 Exp $       */
 
 /*-
  * Copyright (c) 2001 Ben Harris
@@ -29,7 +29,7 @@
 
 #include <machine/asm.h>
 
-RCSID("$NetBSD: fiq_util.S,v 1.2 2001/08/21 22:47:17 bjh21 Exp $")
+RCSID("$NetBSD: fiq_util.S,v 1.3 2001/09/22 17:16:18 bjh21 Exp $")
 
 #include <machine/memcreg.h>
 #include <arch/arm26/iobus/iocreg.h>
@@ -49,6 +49,18 @@
        mov     r13, #1
        str     r13, [r12]      
        subs    pc, r14, #4
+
+ENTRY(fiq_downgrade_dont_disable)
+       ldr     r12, Lioc_base
+       ldrb    r13, [r12, #(IOC_IRQMSKA << 2)]
+       orr     r13, r13, #(1 <<IOC_IRQ_1)
+       strb    r13, [r12, #(IOC_IRQMSKA << 2)]
+       ldr     r12, Lfiq_want_downgrade
+       mov     r13, #1
+       str     r13, [r12]      
+       subs    pc, r14, #4
+
+
 Lioc_base:
        .word   0x03200000
 Lfiq_want_downgrade: