2c478084d6
The new file pci_eb64plus_intr.s deals with the interrupt hardware on the EB64PLUS and was obtained from NetBSD with the NetBSD copyright intact The apecs chipset support code was altered to allow routing interrupts through pci if we're not running on an avanti. Avanti's route all interrupts through isa. Tested by: Wilko Bulte <wilko@yedi.iaf.nl> Partially reviewed by: dfr
64 lines
2.0 KiB
ArmAsm
64 lines
2.0 KiB
ArmAsm
/* $NetBSD: pci_eb64plus_intr.s,v 1.2 1997/09/02 13:19:43 thorpej Exp $ */
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/*
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* Copyright (c) 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* This file hacked from pci_eb164_intr.s
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*
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* These functions were written by disassembling a Digital UNIX kernel's
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* eb64p_intrdsabl and eb64p_intrenabl functions (because they had
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* interesting names, and looked like the eb164 versions which were
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* known to already work), and then playing with them to see how to call
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* them correctly.
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*
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* It looks like the right thing to do is to call them with the interrupt
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* request that you want to enable or disable (presumably in the range
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* 0 -> 23, since there are 3 8-bit interrupt-enable bits in the
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* interrupt mask PLD).
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*/
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#include <machine/asm.h>
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__KERNEL_RCSID(0, "$NetBSD: pci_eb64plus_intr.s,v 1.2 1997/09/02 13:19:43 thorpej Exp $");
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.text
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LEAF(eb64plus_intr_enable,1)
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mov a0, a1
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ldiq a0, 0x34
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call_pal PAL_cserve
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RET
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END(eb64plus_intr_enable)
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.text
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LEAF(eb64plus_intr_disable,1)
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mov a0, a1
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ldiq a0, 0x35
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call_pal PAL_cserve
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RET
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END(eb64plus_intr_enable)
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