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From: Greg KH <greg@kroah.com>
To: kipade <kipade@163.com>
Cc: kernelnewbies@kernelnewbies.org
Subject: Re: Was there a way to bind a shared memory object onto a fixed physical memory address?
Date: Thu, 2 Apr 2020 14:19:43 +0200	[thread overview]
Message-ID: <20200402121943.GB2773800@kroah.com> (raw)
In-Reply-To: <59cbc6e1.997d.1713a419e1c.Coremail.kipade@163.com>

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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  reply	other threads:[~2020-04-02 12:20 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-02  9:38 Was there a way to bind a shared memory object onto a fixed physical memory address? kipade
2020-04-02 12:19 ` Greg KH [this message]
2020-04-20  3:02   ` kipade
2020-04-20 12:34     ` Amit Kumar

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