Is there a simple method to keep memory coherent between two different cpus
Here I want to share a block of physical memory between two different cpus. I want to simple use original real mode memory address. 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.
Hello Kipade, On Sun, Mar 26, 2017 at 6:19 PM, kipade <kipade@163.com> 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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