From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Thomas Hellstrom <thellstrom@vmware.com>
Cc: DRI development list <dri-devel@lists.freedesktop.org>
Subject: Re: TTM and AGP conflicts
Date: Mon, 9 Jan 2012 11:46:04 -0500 [thread overview]
Message-ID: <20120109164604.GC28700@phenom.dumpdata.com> (raw)
In-Reply-To: <4F0AAE36.6080909@vmware.com>
On Mon, Jan 09, 2012 at 10:07:02AM +0100, Thomas Hellstrom wrote:
> On 01/06/2012 04:51 PM, James Simmons wrote:
> >>>>You can achieve what you want by either adding a new domain so you would have
> >>>>system, vram, agp, pcidma and object can be bound to one and only one. Or you
> >>>>can hack your own agp ttm backend that could bind bo to agp or pci or
> >>>>both at the same time depending on what you want to achieve.
> >>>The question is how does one know which domain you want in tt_create.
> >>>Currenty drivers are using there dev_priv but if you have have more than
> >>>one option available how does one choose? Would you be okay with passing
> >>>in a domain flag?
> >>>
> >>Well i agree that something would be usefull there so the driver know
> >>which bind/unbind function it should use. Thomas i would prefer
> >>passing the bo to the tt_create callback but a flag is the minimum we
> >>need.
> >We can discuss this after the merge widow. Jerome your patch does fix a
> >regression whereas my proposal is a enhancement.
>
> ..Back from parental leave.
Congratulations!
>
> I'm not 100% sure I understand the problem correctly, but I assume
> the problem is that
> you receive a "bind" request for pages allocated out of the wrong
> DMA pool? Is that correct?
>
> In that case we need to make both the following happen:
> 1) The backend should be required to supply a fallback that can bind
> anyway by allocating the correct page type and copy.
> 2) I'm OK with providing a hint to tt_create. IIRC we're passing
> bo::mem to tt_bind. Would it be ok to pass the same to tt_create?
>
> /Thomas
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
prev parent reply other threads:[~2012-01-09 16:47 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-22 21:56 TTM and AGP conflicts James Simmons
2011-12-22 22:00 ` Alex Deucher
2011-12-23 1:19 ` James Simmons
2011-12-24 3:44 ` Jerome Glisse
2012-01-03 22:43 ` Jerome Glisse
2012-01-03 22:59 ` Konrad Rzeszutek Wilk
2012-01-06 2:26 ` Konrad Rzeszutek Wilk
2012-01-04 15:36 ` James Simmons
2012-01-04 15:49 ` Jerome Glisse
2012-01-04 16:04 ` James Simmons
2012-01-04 16:35 ` Jerome Glisse
2012-01-06 15:51 ` James Simmons
2012-01-09 9:07 ` Thomas Hellstrom
2012-01-09 15:21 ` Jerome Glisse
2012-01-09 16:46 ` Konrad Rzeszutek Wilk [this message]
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