All of lore.kernel.org
 help / color / mirror / Atom feed
From: ben.dooks@codethink.co.uk (Ben Dooks)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] ARM: mm: mm->context.id fix for big-endian
Date: Sat,  9 Feb 2013 23:15:09 +0000	[thread overview]
Message-ID: <1360451709-19740-3-git-send-email-ben.dooks@codethink.co.uk> (raw)
In-Reply-To: <1360451709-19740-1-git-send-email-ben.dooks@codethink.co.uk>

Since the new ASID code introduced in b5466f8728527a05a493cc4abe9e6f034a1bbaab
uses 64bit operations, when running in BE mode we see the values in
mm->context.id swapped around as the lowest word is being stored in
mm->context.id + 4, instead of + 0.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/mm/proc-macros.S |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
index eb6aa73..5a6a347 100644
--- a/arch/arm/mm/proc-macros.S
+++ b/arch/arm/mm/proc-macros.S
@@ -40,7 +40,11 @@
  * mmid - get context id from mm pointer (mm->context.id)
  */
 	.macro	mmid, rd, rn
+#ifdef __ARMEB__
+	ldr	\rd, [\rn, #MM_CONTEXT_ID + 4 ]
+#else
 	ldr	\rd, [\rn, #MM_CONTEXT_ID]
+#endif
 	.endm
 
 /*
-- 
1.7.10.4

  parent reply	other threads:[~2013-02-09 23:15 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-09 23:15 v3.8-rc issues with big endian Ben Dooks
2013-02-09 23:15 ` [PATCH 1/2] ARM: mm: replace direct access to mm->context.id with new macro Ben Dooks
2013-02-09 23:15 ` Ben Dooks [this message]
2013-02-10  1:10   ` [PATCH 2/2] ARM: mm: mm->context.id fix for big-endian Ben Dooks
2013-02-10 14:14   ` Sergei Shtylyov
2013-02-10 14:17     ` Ben Dooks
2013-02-11  4:35 ` v3.8-rc issues with big endian Nicolas Pitre
  -- strict thread matches above, loose matches on Subject: below --
2013-02-10 14:57 [FIX v2] v3.8-rc: fix for MM ASID code in BE mode Ben Dooks
2013-02-10 14:57 ` [PATCH 2/2] ARM: mm: mm->context.id fix for big-endian Ben Dooks
2013-02-10 15:05   ` Ben Dooks
2013-02-10 23:29     ` Russell King - ARM Linux
2013-02-11 10:38       ` Ben Dooks
2013-02-11 10:51         ` Will Deacon

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=1360451709-19740-3-git-send-email-ben.dooks@codethink.co.uk \
    --to=ben.dooks@codethink.co.uk \
    --cc=linux-arm-kernel@lists.infradead.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.