From: r.sricharan@ti•com (R Sricharan)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH V5] ARM: LPAE: Fix mapping in alloc_init_section for unaligned addresses
Date: Mon, 11 Feb 2013 14:39:49 +0530 [thread overview]
Message-ID: <5118B55D.1000301@ti.com> (raw)
In-Reply-To: <51151064.6050400@ti.com>
On Friday 08 February 2013 08:19 PM, Santosh Shilimkar wrote:
> On Friday 08 February 2013 08:13 PM, Christoffer Dall wrote:
>> On Fri, Feb 8, 2013 at 6:30 AM, R Sricharan <r.sricharan@ti•com> wrote:
>>> With LPAE enabled, alloc_init_section() does not map the entire
>>> address space for unaligned addresses.
>>>
>>> The issue also reproduced with CMA + LPAE. CMA tries to map 16MB
>>> with page granularity mappings during boot. alloc_init_pte()
>>> is called and out of 16MB, only 2MB gets mapped and rest remains
>>> unaccessible.
>>>
>>> Because of this OMAP5 boot is broken with CMA + LPAE enabled.
>>> Fix the issue by ensuring that the entire addresses are
>>> mapped.
>>>
>>> Signed-off-by: R Sricharan <r.sricharan@ti•com>
>>> Cc: Catalin Marinas <catalin.marinas@arm•com>
>>> Cc: Christoffer Dall <chris@cloudcar•com>
>>> Cc: Russell King <linux@arm•linux.org.uk>
>>> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti•com>
>>> Tested-by: Christoffer Dall <chris@cloudcar•com>
>>
>> I don't think that I've tested this version of the patch, but ok.
>>
> Indeed. Neither I have acke'd the updated version ;)
> Tags from old patch doesn't apply anymore when patch
> is completely revamped.
>
Ok, corrected this in the updated version.
Regards,
Sricharan
next prev parent reply other threads:[~2013-02-11 9:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-08 11:30 [PATCH V5] ARM: LPAE: Fix mapping in alloc_init_section for unaligned addresses R Sricharan
2013-02-08 14:43 ` Christoffer Dall
2013-02-08 14:49 ` Santosh Shilimkar
2013-02-11 9:09 ` R Sricharan [this message]
2013-02-11 9:10 ` R Sricharan
2013-02-08 15:21 ` Catalin Marinas
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