65 lines
2.0 KiB
ArmAsm
65 lines
2.0 KiB
ArmAsm
/* $NetBSD: pci_eb64plus_intr.s,v 1.1 1997/04/10 23:24:32 cgd Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1996 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Chris G. Demetriou
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
/*
|
|
* This file hacked from pci_eb164_intr.s
|
|
*
|
|
* These functions were written by disassembling a Digital UNIX kernel's
|
|
* eb64p_intrdsabl and eb64p_intrenabl functions (because they had
|
|
* interesting names, and looked like the eb164 versions which were
|
|
* known to already work), and then playing with them to see how to call
|
|
* them correctly.
|
|
*
|
|
* It looks like the right thing to do is to call them with the interrupt
|
|
* request that you want to enable or disable (presumably in the range
|
|
* 0 -> 23, since there are 3 8-bit interrupt-enable bits in the
|
|
* interrupt mask PLD).
|
|
*/
|
|
|
|
#include <machine/options.h> /* Config options headers */
|
|
#include <machine/asm.h>
|
|
|
|
__KERNEL_RCSID(0, "$NetBSD: pci_eb64plus_intr.s,v 1.1 1997/04/10 23:24:32 cgd Exp $");
|
|
|
|
.text
|
|
LEAF(eb64plus_intr_enable,1)
|
|
mov a0, a1
|
|
ldiq a0, 0x34
|
|
call_pal PAL_cserve
|
|
RET
|
|
END(eb64plus_intr_enable)
|
|
|
|
.text
|
|
LEAF(eb64plus_intr_disable,1)
|
|
mov a0, a1
|
|
ldiq a0, 0x35
|
|
call_pal PAL_cserve
|
|
RET
|
|
END(eb64plus_intr_enable)
|