How to alloc_pages from a given physical memory?

[Kamil Konieczny]

On 06.07.2017 15:43, kipade wrote:
> Might be? I have no puzzle of CMem。 OK, I will continue go search solutions for that.
> And, if I got it, I will come back for sharing solutions here. 
> And, thank you, all

Are you writing kernel module ?

or you try to compile kernel with cmem module ?

What hardware are you using ?

How are you allocating shmem ?
Can you give few code lines for what you try ?

The more info you give, more help you receive.

Well, it may be faster to go directly to some kernel list or vendor list
with your questions.

>> On 06.07.2017 12:20, kipade wrote:
>>
>>> [...] (I have a look at> the kerrnel source, every omap_bo_object [...]
>>
>>> [...] I use arm 32bit cpu, with kernel 3.14
>>
>>> Here I want to allocate a block of shared memory from a given physical
>>> address, such as 0x90000000, 6M. [...]
>>
>> it is well beyond newbie, you may find help on vendor forum,
>> i guess it is TI (Texas Instruments) Sitara SoC,
>> google search gives first hit:
>>
>> http://processors.wiki.ti.com/index.php/CMEM_Overview

-- 
Best regards,
Kamil Konieczny
Samsung R&D Institute Poland