* How can I get physical address from a struct dma_buf
@ 2014-02-07 20:02 m silverstri
2014-02-11 12:09 ` naveen yadav
0 siblings, 1 reply; 2+ messages in thread
From: m silverstri @ 2014-02-07 20:02 UTC (permalink / raw)
To: kernelnewbies
Hi,
If I have a struct dma_buf dma buffer, how can I the physical address?
^ permalink raw reply [flat|nested] 2+ messages in thread
* How can I get physical address from a struct dma_buf
2014-02-07 20:02 How can I get physical address from a struct dma_buf m silverstri
@ 2014-02-11 12:09 ` naveen yadav
0 siblings, 0 replies; 2+ messages in thread
From: naveen yadav @ 2014-02-11 12:09 UTC (permalink / raw)
To: kernelnewbies
how about using define
page_to_phys(page) ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
or
virt_to_phys ()
On Sat, Feb 8, 2014 at 1:32 AM, m silverstri
<michael.j.silverstri@gmail.com> wrote:
> Hi,
>
> If I have a struct dma_buf dma buffer, how can I the physical address?
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-02-07 20:02 How can I get physical address from a struct dma_buf m silverstri
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