Re: [patch 0/5] Intel Poulsbo/Morrestown DRM driver and DRM core changes

From: Sindhudweep Sarkar
Date: Thu Mar 19 2009 - 12:03:25 EST


This might be the opinion of a completely non educated end user but it
seems that an intel specific drm and other bits (xorg, mesa) would be
somewhat of a maintenance waste.

TI-OMAP 3xxx and a couple of other arm processors use similar SGX-5xx
graphics cores. IIRC arm is often little endian so perhaps a unified
driver would be easier in the long term.

On Thu, Mar 19, 2009 at 12:08 AM, Greg KH <greg@xxxxxxxxx> wrote:
> Hi,
>
> Here's 5 patches that add the Intel Poulsbo/Morrestown DRM driver to the
> kernel tree.
>
> There are 4 patches that make changes to the DRM core, and one patch
> that adds the DRM driver itself.  The driver is added to the
> drivers/staging/ directory because it is not the "final" driver that
> Intel wishes to support over time.  The userspace api is going to
> change, and work is currently underway to hook up properly with the
> memory management system.
>
> However this work is going to take a while, and in the meantime, users
> want to run Linux on this kind of hardware.  I'd really like to add the
> driver to the staging tree, but it needs these core DRM changes in order
> to get it to work properly.
>
> Originally I had a patch that basically duplicated the existing DRM
> core, and embedded it with these changes and the PSB driver together
> into one big mess of a kernel module.  But Richard convinced me that
> this wasn't the "nicest" thing to do, and he did work on the PSB code
> and dug out these older DRM patches.
>
> The only thing that looks a bit "odd" to me is the unlocked ioctl patch,
> Thomas, is that thing really correct?
>
> David, I'd be glad to take the DRM changes through the staging tree, but
> only if you ack them.
>
> thanks,
>
> greg k-h
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