Re: [PATCH v4] fbdev: sh_mobile_lcdc: use dma_mmap_coherent

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Laurent,

From: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
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@xxxxxxxxxx>
> 
> Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> 
> 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@xxxxxxxxxx>
--
To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Video for Linux]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Tourism]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux