[src/trunk]: src/sys/arch/vax/vax Call uvm_pageidlezero() in idle loop.

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

details:   https://anonhg.NetBSD.org/src/rev/943c819c476c
branches:  trunk
changeset: 485579:943c819c476c
user:      ragge <ragge%NetBSD.org@localhost>
date:      Mon May 01 12:11:50 2000 +0000

description:
Call uvm_pageidlezero() in idle loop.

diffstat:

 sys/arch/vax/vax/genassym.cf |   8 +++++++-
 sys/arch/vax/vax/subr.s      |  21 ++++++++++++++++-----
 2 files changed, 23 insertions(+), 6 deletions(-)

diffs (80 lines):

diff -r d8817ab725af -r 943c819c476c sys/arch/vax/vax/genassym.cf
--- a/sys/arch/vax/vax/genassym.cf      Mon May 01 12:09:32 2000 +0000
+++ b/sys/arch/vax/vax/genassym.cf      Mon May 01 12:11:50 2000 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: genassym.cf,v 1.12 2000/04/22 17:05:07 ragge Exp $
+#      $NetBSD: genassym.cf,v 1.13 2000/05/01 12:11:50 ragge Exp $
 #
 # Copyright (c) 1997 Ludd, University of Lule}, Sweden.
 # All rights reserved.
@@ -38,6 +38,10 @@
 
 include        <net/netisr.h>
 
+include <vm/vm.h>
+include <uvm/uvm.h>
+include <uvm/uvm_extern.h>
+
 include        <machine/mtpr.h>
 include        <machine/pcb.h>
 include        <machine/sid.h>
@@ -59,6 +63,8 @@
 
 define KERNBASE        KERNBASE
 
+define UVM_PAGE_IDLE_ZERO      offsetof(struct uvm, page_idle_zero)
+
 ifdef MULTIPROCESSOR
 # Multiprocessor struct members
 define CI_CURPROC      offsetof(struct cpu_info, ci_curproc)
diff -r d8817ab725af -r 943c819c476c sys/arch/vax/vax/subr.s
--- a/sys/arch/vax/vax/subr.s   Mon May 01 12:09:32 2000 +0000
+++ b/sys/arch/vax/vax/subr.s   Mon May 01 12:11:50 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: subr.s,v 1.35 2000/03/19 14:56:54 ragge Exp $     */
+/*     $NetBSD: subr.s,v 1.36 2000/05/01 12:11:50 ragge Exp $     */
 
 /*
  * Copyright (c) 1994 Ludd, University of Lule}, Sweden.
@@ -211,7 +211,7 @@
        movl    4(r1), fp
        movl    12(r1), sp
        jmp     *8(r1)
-#endif 
+#endif
 
 #
 # setrunqueue/remrunqueue fast variants.
@@ -250,7 +250,11 @@
 # pi or something.
 #
 idle:  mtpr    $0,$PR_IPL              # Enable all types of interrupts
-1:     tstl    _whichqs                # Anything ready to run?
+1:     movab   _uvm,r0
+       tstl    UVM_PAGE_IDLE_ZERO(r0)
+       beql    2f
+       calls   $0,_uvm_pageidlezero
+2:     tstl    _whichqs                # Anything ready to run?
        beql    1b                      # no, continue to loop
        brb     Swtch                   # Yes, goto switch again.
 
@@ -364,10 +368,17 @@
        .word   0
        movl    4(ap),r4        # from
        movl    8(ap),r5        # to
+       movl    16(ap),r3       # copied
        movl    12(ap),r2       # len
-       movl    16(ap),r3       # copied
 
-       movab   2f,*pcbtrap
+       bneq    0f              # zero length?
+       tstl    r3
+       beql    1f              # Save zero length?
+       clrl    (r3)
+1:     clrl    r0
+       ret
+
+0:     movab   2f,*pcbtrap
 
 /*
  * This routine consists of two parts: One is for MV2 that doesn't have