Was there a way to bind a shared memory object onto a fixed physical memory address?

Amit Kumar free.amit.kumar at gmail.com
Mon Apr 20 08:34:52 EDT 2020

On Mon, Apr 20, 2020, 08:33 kipade <kipade at 163.com> wrote:

> Im sorry that my there were something wrong about my notebook for a half
> of month.
> Here, I want to use system shared memory API to share data across
> processes, but I want it use a specified
> It's simple. As you are mentioning the API, so study that API.
I am also trying to learn kernel development, but through reading kernel
I think a kernel developer should not be fed rather he should eat.
I will suggest you to just take a jump into kernel  documentation
directory, you will find yourself wet.

Pardon me, if I have hurt you.

> range of memory knowned by a slave core such as DSP, etc. If I can do?
> thanks.
> On 2020/4/2 下午8:19, Greg KH wrote:
> > On Thu, Apr 02, 2020 at 05:38:31PM +0800, kipade wrote:
> >> As the topic, I want to specify a fixed physical memory space to a
> shared memory object, which can use
> >> shm_XXX api to access the memory. Of course I do not want to use mmap
> api to map /dev/mem device
> >> memory into user program.
> > Step back and tell us exactly what problem you have, that you have come
> > up to this type of solution being necessary?  What do you think you can
> > solve by doing this?
> >
> > thanks,
> >
> > greg k-h
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