How to map more than 1 page of buffer to kernel address?

[Miles MH Chen]

Hi,

You can try vmap to map the pages into kernel virtual address.

Best regards,
MH



On Wed, Feb 5, 2014 at 5:18 AM, m silverstri <michael.j.silverstri at gmail.com
> wrote:

> Hi,
>
> I need to map an buffer object to kernel address.  What should I
> buffer is more than 1 page and I want to map the whole buffer to the
> kernel address?
>
> https://www.kernel.org/doc/htmldocs/device-drivers/API-dma-buf-kmap.html
>
> dma_buf_kmap -- Map a page of the buffer object into kernel address
> space. The same restrictions as for kmap and friends apply.
>
> Thanks.
>
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