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describe options PCIBIOS_INTR_GUESS

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soda 2000-08-10 21:19:42 +00:00
parent b63f6b5096
commit 405954a851
1 changed files with 19 additions and 1 deletions
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20
share/man/man4/man4.i386/pcibios.4
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@ -1,4 +1,4 @@
.\" $NetBSD: pcibios.4,v 1.7 2000/08/03 13:32:39 soda Exp $
.\" $NetBSD: pcibios.4,v 1.8 2000/08/10 21:19:42 soda Exp $
.\"
.\" Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -48,6 +48,7 @@
.Cd "options PCIBIOS_INTR_FIXUP"
.Cd "#options PCIBIOS_IRQS_HINT=0x0a00 #IRQ 9,11"
.Cd "#options PCIBIOS_INTR_FIXUP_FORCE"
.Cd "options PCIBIOS_INTR_GUESS"
.Cd "#options PCIINTR_DEBUG"
.Pp
.Sh INTRODUCTION
@ -211,6 +212,23 @@ The necessity of this option is doubtful, and we may
remove this option in the future. If you find that this
option is worth preserving, please report it with send-pr.
.It Nm PCIBIOS_INTR_GUESS
make
.Em PCIBIOS_INTR_FIXUP
work with unknown interrupt router.
.Pp
If a PCI interrupt router is not known, normally interrupt
configuraion will not be touched.
But if
.Em PCIBIOS_INTR_GUESS
is specified in addition to the
.Em PCIBIOS_INTR_FIXUP ,
and if a PCI interrupt routing table entry indicates that only
one IRQ is available for the entry, the IRQ is assumed to be already
connected to the device, and corresponding PCI Interrupt
Configuration Register will be configured accordingly.
.It Nm PCIINTR_DEBUG
make the
.Em PCIBIOS_INTR_FIXUP