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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

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