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Implement alpha_pal_swpctx().

This commit is contained in:
thorpej 1998-02-27 03:44:53 +00:00
parent f5f997d1dc
commit cb6972d4d3
2 changed files with 20 additions and 3 deletions
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20
sys/arch/alpha/alpha/pal.s
View File

@ -1,4 +1,4 @@
/* $NetBSD: pal.s,v 1.11 1997/11/03 04:22:03 ross Exp $ */
/* $NetBSD: pal.s,v 1.12 1998/02/27 03:44:53 thorpej Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
@ -39,7 +39,7 @@
* and Richard T. Witek.
*/
__KERNEL_RCSID(1, "$NetBSD: pal.s,v 1.11 1997/11/03 04:22:03 ross Exp $");
__KERNEL_RCSID(1, "$NetBSD: pal.s,v 1.12 1998/02/27 03:44:53 thorpej Exp $");
inc2: .stabs __FILE__,132,0,0,inc2; .loc 1 __LINE__
/*
@ -330,3 +330,19 @@ LEAF(alpha_pal_wrval,1)
call_pal PAL_OSF1_wrval
RET
END(alpha_pal_wrval)
/*
* alpha_pal_swpctx: Swap context. [PRIVILEGED]
*
* Switch to a new process context.
*
* Arguments:
* a0 physical address of hardware PCB describing context
*
* Returns:
* v0 physical address of hardware PCB describing previous context
*/
LEAF(alpha_pal_swpctx,1)
call_pal PAL_OSF1_swpctx
RET
END(alpha_pal_swpctx)

3
sys/arch/alpha/include/alpha_cpu.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: alpha_cpu.h,v 1.16 1998/02/13 00:12:52 thorpej Exp $ */
/* $NetBSD: alpha_cpu.h,v 1.17 1998/02/27 03:44:53 thorpej Exp $ */
/*
* Copyright (c) 1996 Carnegie-Mellon University.
@ -311,6 +311,7 @@ unsigned long alpha_pal_rdmces __P((void));
unsigned long alpha_pal_rdps __P((void));
unsigned long alpha_pal_rdusp __P((void));
unsigned long alpha_pal_rdval __P((void));
unsigned long alpha_pal_swpctx __P((unsigned long));
unsigned long alpha_pal_swpipl __P((unsigned long));
unsigned long _alpha_pal_swpipl __P((unsigned long)); /* for profiling */
void alpha_pal_tbi __P((unsigned long, vm_offset_t));