Hello Kipade,

On Sun, Mar 26, 2017 at 6:19 PM, kipade <[email protected]> wrote:
> Here I want to share a block of physical memory between two different cpus.
Few questions.
Are they(cpus) running two separate operating systems?

> I want to simple use original real mode memory address.
Did you mean using with MMU disabled?

> Is there a simple way to invalid linux memory cache after writing to and
> before reading from it?
> ex. invalid_cache_range(u32 phy_address, u32 length).
>
> My cpu is arm. Thanks.

Provide more details need about your cpu.

Regards,
Arun

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