Re: [PATCH 1/2] mm: export find_extend_vma and handle_mm_fault for driver use

From: Joerg Roedel
Date: Mon Nov 17 2014 - 11:53:56 EST

On Wed, Nov 12, 2014 at 02:07:41PM -0800, Jesse Barnes wrote:
> I wonder if we need a new "device_task_struct" or
> "coprocessor_task_struct" or something to wrap some simple stuff on
> non-CPU devices. They could be sub-classed by drivers that needed
> additional driver specific data.

Yes, I think something like a device_task_struct may be needed at some
point. It could be used in some generic code for task scheduling and
management on the devices too. The KFD driver already implements a
scheduler and stuff, maybe some of this code can be generalized to be
useable by other drivers and a common userspace interface (at least to
some degree).


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