From: leigh@solinno.co.uk (Leigh Brown)
To: paulus@samba.org
Cc: trini@kernel.crashing.org, linuxppc-dev@lists.linuxppc.org,
barbieri@gmail.com
Subject: [9/9] Support for old IBM PReP boxes
Date: Thu, 29 Jul 2004 22:35:01 +0100 [thread overview]
Message-ID: <20040729213501.GA5929@george.solinno.co.uk> (raw)
This makes the /proc/interrupts display the correct edge/level
indicator for each interrupt. This is purely cosmetic, but does
reduce confusion.
diff -urNX /home/leigh/.diffex linux-2.6.8-rc2-bk8.prev/arch/ppc/platforms/prep_pci.c linux-2.6.8-rc2-bk8/arch/ppc/platforms/prep_pci.c
--- linux-2.6.8-rc2-bk8.prev/arch/ppc/platforms/prep_pci.c 2004-07-29 20:44:33.000000000 +0100
+++ linux-2.6.8-rc2-bk8/arch/ppc/platforms/prep_pci.c 2004-07-29 20:56:09.000000000 +0100
@@ -1029,11 +1029,18 @@
}
} else if ( _prep_type == _PREP_IBM ) {
unsigned char irq_edge_mask_lo, irq_edge_mask_hi;
+ unsigned short irq_edge_mask;
+ int i;
setup_ibm_pci(&irq_edge_mask_lo, &irq_edge_mask_hi);
outb(inb(0x04d0)|irq_edge_mask_lo, 0x4d0); /* primary 8259 */
outb(inb(0x04d1)|irq_edge_mask_hi, 0x4d1); /* cascaded 8259 */
+
+ irq_edge_mask = (irq_edge_mask_hi << 8) | irq_edge_mask_lo;
+ for (i = 0; i < 16; ++i, irq_edge_mask >>= 1)
+ if (irq_edge_mask & 1)
+ irq_desc[i].status |= IRQ_LEVEL;
} else {
printk("No known machine pci routing!\n");
return;
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
reply other threads:[~2004-07-29 21:35 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=20040729213501.GA5929@george.solinno.co.uk \
--to=leigh@solinno.co.uk \
--cc=barbieri@gmail.com \
--cc=linuxppc-dev@lists.linuxppc.org \
--cc=paulus@samba.org \
--cc=trini@kernel.crashing.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;
as well as URLs for NNTP newsgroup(s).