From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2] arm: fix pmd flushing in map_init_section
Date: Fri, 14 Jun 2013 18:29:10 +0100 [thread overview]
Message-ID: <20130614172910.GT29271@arm.com> (raw)
In-Reply-To: <1371229044-3970-1-git-send-email-mark.rutland@arm.com>
On Fri, Jun 14, 2013 at 05:57:24PM +0100, Mark Rutland wrote:
> In e651eab0af: "ARM: 7677/1: LPAE: Fix mapping in alloc_init_section for
> unaligned addresses", the pmd flushing was broken when split out to
> map_init_section. At the end of the final iteration of the while loop,
> pmd will point at the pmd_t immediately after the pmds we updated, and
> thus flush_pmd_entry(pmd) won't flush the newly modified pmds. This has
> been observed to prevent an 11MPCore system from booting.
>
> This patch fixes this by remembering the address of the first pmd we
> update and using this as the argument to flush_pmd_entry.
>
> Signed-off-by: Mark Rutland <mark.rutland@arm.com>
> Cc: R Sricharan <r.sricharan@ti.com>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Christoffer Dall <cdall@cs.columbia.edu>
> Cc: Russell King <rmk+kernel@arm.linux.org.uk>
> Cc: stable at vger.kernel.org
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
next prev parent reply other threads:[~2013-06-14 17:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-14 16:22 [PATCH] arm: fix pmd flushing in map_init_section Mark Rutland
2013-06-14 16:34 ` Christoffer Dall
2013-06-14 16:48 ` Mark Rutland
2013-06-14 16:54 ` Christoffer Dall
2013-06-14 16:57 ` [PATCHv2] " Mark Rutland
2013-06-14 17:04 ` Christoffer Dall
2013-06-14 17:29 ` Catalin Marinas [this message]
2013-06-14 17:28 ` [PATCH] " Catalin Marinas
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