From: steiner@sgi.com
To: akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: [Patch 11/25] GRU - interrupt fix for processors without core 0
Date: Mon, 19 Jul 2010 16:32:29 -0500 [thread overview]
Message-ID: <20100719213852.925498470@sgi.com> (raw)
In-Reply-To: 20100719213651.362618144@sgi.com
[-- Attachment #1: uv_gru_interrupt_0 --]
[-- Type: text/plain, Size: 1119 bytes --]
From: Jack Steiner <steiner@sgi.com>
GRU interrupts for the kernel context are targeted to core 0
of the lowest socket on the blade.
Fix an endcase for 6-socket processors that do not have a
APICID for core 0. (There are potentially 8 cores in the
socket. A 6 core socket has 2 cores disabled. If core 0 was
disabled, the old code did not work).
Signed-off-by: Jack Steiner <steiner@sgi.com>
---
drivers/misc/sgi-gru/grumain.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/drivers/misc/sgi-gru/grumain.c
===================================================================
--- linux.orig/drivers/misc/sgi-gru/grumain.c 2010-06-09 08:11:43.740083860 -0500
+++ linux/drivers/misc/sgi-gru/grumain.c 2010-06-09 08:11:44.128107324 -0500
@@ -618,7 +618,7 @@ void gru_load_context(struct gru_thread_
cch->unmap_enable = 1;
cch->tfm_done_bit_enable = 1;
cch->cb_int_enable = 1;
- cch->tlb_int_select = 0; /* For now, ints go to cpu 0 */
+ cch->tlb_int_select = uv_cpu_core_number(0); /* For now, ints go to cpu 0 */
} else {
cch->unmap_enable = 0;
cch->tfm_done_bit_enable = 0;
next prev parent reply other threads:[~2010-07-19 21:43 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-19 21:32 [Patch 00/25] GRU - GRU Updates steiner
2010-07-19 21:32 ` [Patch 01/25] GRU - delete obsolete gru instruction opcodes steiner
2010-07-19 21:32 ` [Patch 02/25] GRU - skip gru tlb purging of gru contexts:w steiner
2010-07-19 21:32 ` [Patch 03/25] GRU - update gru tlb miss statistics steiner
2010-07-19 21:32 ` [Patch 04/25] GRU - mmap gru contexts using nonlinear steiner
2010-07-19 21:32 ` [Patch 05/25] GRU - cbe cache flush steiner
2010-07-19 21:32 ` [Patch 06/25] GRU - change context stealing steiner
2010-07-19 21:32 ` [Patch 07/25] GRU - add context lock flag to gru status steiner
2010-07-19 21:32 ` [Patch 08/25] GRU - flush gru tlb when driver is loaded steiner
2010-07-19 21:32 ` [Patch 09/25] GRU - add software reserved bits to cbr definition steiner
2010-07-19 21:32 ` [Patch 10/25] GRU - eliminate gru contention on mmap_sem steiner
2010-07-19 21:32 ` steiner [this message]
2010-07-19 21:32 ` [Patch 12/25] GRU - add gru hub number to context status steiner
2010-07-19 21:32 ` [Patch 13/25] GRU - delete obsolete debug code steiner
2010-07-19 21:32 ` [Patch 14/25] GRU - add polling for tlb misses steiner
2010-07-19 21:32 ` [Patch 15/25] GRU - reorder interrupt processing steiner
2010-07-19 21:32 ` [Patch 16/25] GRU - add refcnt to vdata structure steiner
2010-07-19 21:32 ` [Patch 17/25] GRU - no panic on gru malfunction steiner
2010-07-19 21:32 ` [Patch 18/25] GRU - contexts must contain cbrs steiner
2010-07-19 21:32 ` [Patch 19/25] GRU - update debug messages and comments steiner
2010-07-19 21:32 ` [Patch 20/25] GRU - add gsh information to gru dumps steiner
2010-07-19 21:32 ` [Patch 21/25] GRU - delete unused gru statistics structure steiner
2010-07-19 21:32 ` [Patch 22/25] GRU - gru api cleanup steiner
2010-07-19 21:32 ` [Patch 23/25] GRU - update driverr version steiner
2010-07-19 21:32 ` [Patch 24/25] GRU - rename gru pagesize defines steiner
2010-07-19 21:32 ` [Patch 25/25] GRU - update cbrstate definitions steiner
-- strict thread matches above, loose matches on Subject: below --
2010-08-26 13:19 [Patch 00/25] GRU - GRU Updates - Production Driver steiner
2010-08-26 13:19 ` [Patch 11/25] GRU - interrupt fix for processors without core 0 steiner
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=20100719213852.925498470@sgi.com \
--to=steiner@sgi.com \
--cc=akpm@osdl.org \
--cc=linux-kernel@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