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From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/6] ARM: mm: remove broken condition check for v4 flushing
Date: Wed, 30 Jan 2013 14:27:47 +0000	[thread overview]
Message-ID: <1359556069-28289-5-git-send-email-will.deacon@arm.com> (raw)
In-Reply-To: <1359556069-28289-1-git-send-email-will.deacon@arm.com>

There's no point having a conditional cache flush if we don't know the
state of the condition beforehand.

This patch makes the cacheflush in v4_flush_user_cache_range
unconditional.

signed-off-by: will deacon <will.deacon@arm.com>
---
 arch/arm/mm/cache-v4.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S
index 43e5d77..a7ba68f 100644
--- a/arch/arm/mm/cache-v4.S
+++ b/arch/arm/mm/cache-v4.S
@@ -58,7 +58,7 @@ ENTRY(v4_flush_kern_cache_all)
 ENTRY(v4_flush_user_cache_range)
 #ifdef CONFIG_CPU_CP15
 	mov	ip, #0
-	mcreq	p15, 0, ip, c7, c7, 0		@ flush ID cache
+	mcr	p15, 0, ip, c7, c7, 0		@ flush ID cache
 	mov	pc, lr
 #else
 	/* FALLTHROUGH */
-- 
1.8.0

  parent reply	other threads:[~2013-01-30 14:27 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-30 14:27 [PATCH 0/6] Fix 740t support and remove more unused ARMv3 code Will Deacon
2013-01-30 14:27 ` [PATCH 1/6] ARM: tlbflush: remove ARMv3 support Will Deacon
2013-01-30 14:27 ` [PATCH 2/6] ARM: cache: remove ARMv3 support code Will Deacon
2013-01-31  0:40   ` Hyok S. Choi
2013-01-31  9:56     ` Will Deacon
2013-01-30 14:27 ` [PATCH 3/6] ARM: mm: fix numerous hideous errors in proc-arm740.S Will Deacon
2013-02-01 11:10   ` Hyok S. Choi
2013-01-30 14:27 ` Will Deacon [this message]
2013-01-30 14:27 ` [PATCH 5/6] ARM: modules: don't export cpu_set_pte_ext when !MMU Will Deacon
2013-01-30 14:27 ` [PATCH 6/6] ARM: integrator: ensure ap_syscon_base is initialised when !CONFIG_MMU Will Deacon
2013-01-31 20:21   ` Linus Walleij
2013-01-31 22:34     ` Will Deacon
2013-01-31 22:56       ` Olof Johansson
2013-02-03 11:48         ` Will Deacon
2013-02-04 21:49           ` Arnd Bergmann
2013-02-06 18:25             ` Will Deacon
2013-02-10  0:29               ` Olof Johansson

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