From: "White, Charles" <Charles.White@COMPAQ.com>
To: linux-ia64@vger.kernel.org
Subject: [Linux-ia64] Remapping of the IA64 interrupts?
Date: Thu, 26 Oct 2000 15:22:38 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590678205634@msgid-missing> (raw)
I am currently looking at an issue with the ISA interrupts, and it appears
to be caused by the re-mapping of these interrupts.
From arch/ia64/kernel/irq_ia64.c
----------------------------------------
/*
* Legacy IRQ to IA-64 vector translation table. Any vector not in
* this table maps to itself (ie: irq 0x30 => IA64 vector 0x30)
*/
__u8 isa_irq_to_vector_map[16] = {
/* 8259 IRQ translation, first 16 entries */
0x60, 0x50, 0x10, 0x51, 0x52, 0x53, 0x43, 0x54,
0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x40, 0x41
};
------------------------------------------
Why do this legacy interrupts need to be remapped on the IA64 system? What
specification did these re-map values come from?
next reply other threads:[~2000-10-26 15:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-26 15:22 White, Charles [this message]
2000-10-26 17:42 ` [Linux-ia64] Remapping of the IA64 interrupts? Rao, Goutham
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=marc-linux-ia64-105590678205634@msgid-missing \
--to=charles.white@compaq.com \
--cc=linux-ia64@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox