n
>Cc: linux-media@vger.kernel.org; mche...@infradead.org; davinci-linux-open-
>sou...@linux.davincidsp.com
>Subject: Re: [PATCH] V4L - Fix videobuf_dma_contig_user_get() getting page
>aligned physical address
>
>Hi again Murali,
>
>Thanks for your work on this.
>
>
Hi again Murali,
Thanks for your work on this.
On Thu, Dec 3, 2009 at 12:48 AM, Karicheri, Muralidharan
wrote:
> Magnus,
>
>>Thanks for the patch. For non-page aligned user space pointers I agree
>>that a fix is needed. Don't you think the while loop in
>>videobuf_dma_contig_user_get() also need
Magnus,
>Thanks for the patch. For non-page aligned user space pointers I agree
>that a fix is needed. Don't you think the while loop in
>videobuf_dma_contig_user_get() also needs to be adjusted to include
>the last page? I think the while loop checks one page too little in
>the non-aligned case t
On Wed, Dec 2, 2009 at 12:30 AM, wrote:
> From: Muralidharan Karicheri
>
> If a USERPTR address that is not aligned to page boundary is passed to the
> videobuf_dma_contig_user_get() function, it saves a page aligned address to
> the dma_handle. This is not correct. This issue is observed when u
From: Muralidharan Karicheri
If a USERPTR address that is not aligned to page boundary is passed to the
videobuf_dma_contig_user_get() function, it saves a page aligned address to
the dma_handle. This is not correct. This issue is observed when using USERPTR
IO machism for buffer exchange.
Signe