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@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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