From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/8] ARM: Align machine_desc.phys_io to a 1MB section
Date: Wed, 02 Jun 2010 18:02:23 +0100 [thread overview]
Message-ID: <20100602170223.18569.70412.stgit@e102109-lin.cambridge.arm.com> (raw)
In-Reply-To: <20100602170039.18569.41823.stgit@e102109-lin.cambridge.arm.com>
Platforms like RealView don't pass a section-aligned pointer via the
machine_desc structure. This patch aligns the pointer in the
__create_page_tables function. Reported by Tony Thompson.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
arch/arm/kernel/head.S | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index eb62bf9..82ea924 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -302,6 +302,8 @@ __create_page_tables:
movhi r3, #0x0800
add r6, r0, r3
ldr r3, [r8, #MACHINFO_PHYSIO]
+ mov r3, r3, lsr #20 @ 1MB-aligned address
+ mov r3, r3, lsl #20
orr r3, r3, r7
1: str r3, [r0], #4
add r3, r3, #1 << 20
next prev parent reply other threads:[~2010-06-02 17:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-02 17:02 [PATCH v2 0/8] Patches for 2.6.35 Catalin Marinas
2010-06-02 17:02 ` [PATCH v2 1/8] ARM: Improve the L2 cache performance when PL310 is used Catalin Marinas
2010-06-02 17:02 ` Catalin Marinas [this message]
2010-06-02 17:02 ` [PATCH v2 3/8] ARM: Avoid the CONSISTENT_DMA_SIZE warning on noMMU builds Catalin Marinas
2010-06-02 17:02 ` [PATCH v2 4/8] ARM: The v6_dma_inv_range() function must preserve data on SMP Catalin Marinas
2010-06-02 17:02 ` [PATCH v2 5/8] ARM: Add a config option for the ARM11MPCore DMA cache maintenance workaround Catalin Marinas
2010-06-02 17:02 ` [PATCH v2 6/8] ARM: Add support for the MOVW/MOVT relocations in Thumb-2 Catalin Marinas
2010-06-02 17:02 ` [PATCH v2 7/8] ARM: Remove dummy loads from the original relocation address Catalin Marinas
2010-06-02 17:02 ` [PATCH v2 8/8] ARM: Do not compile the Thumb-2 module relocations on an ARM kernel Catalin Marinas
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