linux-kernel - Re: [PATCH v4] fbdev: sh_mobile_lcdc: use dma_mmap

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Message-Id: <20121210.193125.442743545.hdk@igel.co.jp>
Date:	Mon, 10 Dec 2012 19:31:25 +0900 (JST)
From:	Hideki EIRAKU <hdk@...l.co.jp>
To:	laurent.pinchart@...asonboard.com
Cc:	FlorianSchandinat@....de, linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, m.szyprowski@...sung.com,
	matsu@...l.co.jp, dhobsong@...l.co.jp
Subject: Re: [PATCH v4] fbdev: sh_mobile_lcdc: use dma_mmap_coherent

Hi Laurent,

From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: Re: [PATCH v4] fbdev: sh_mobile_lcdc: use dma_mmap_coherent
Date: Thu, 16 Aug 2012 14:16:32 +0200

> Hi Eiraku-san,
> 
> On Thursday 16 August 2012 19:13:20 Hideki EIRAKU wrote:
>> fb_mmap() implemented in fbmem.c uses smem_start as the physical
>> address of the frame buffer.  In the sh_mobile_lcdc driver, the
>> smem_start is a dma_addr_t that is not a physical address when IOMMU is
>> enabled.  dma_mmap_coherent() maps the address correctly.
>> 
>> Signed-off-by: Hideki EIRAKU <hdk@...l.co.jp>
> 
> Acked-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> 
> I will push the patch to v3.7 through my tree.

I'd like to use this patch to test IOMMU implementation of Renesas
IPMMU.  But I could not find it in v3.7-rc8.  Could you please tell me if 
this has already been merged somewhere or not?

-- 
Hideki EIRAKU <hdk@...l.co.jp>
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