From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: "Michel Dänzer" <michel@daenzer.net>
Cc: Prasad Joshi <prasadjoshi124@gmail.com>,
linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: A query on frame buffers
Date: Fri, 07 Jan 2011 16:58:13 +0000 [thread overview]
Message-ID: <20110107165813.GA24320@dumpdata.com> (raw)
In-Reply-To: <1294390835.6019.218.camel@thor.local>
> > The errors
> >
> > [ 3.778476] [drm:r100_ring_test] *ERROR* radeon: ring test failed
> > (sracth(0x15E4)=0xCAFEDEAD)
> > [ 3.781010] [drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
> > [ 3.782542] radeon 0000:00:04.0: failled initializing CP (-22).
> > [ 3.784006] radeon 0000:00:04.0: Disabling GPU acceleration
> >
> > Seem to be disabling GPU functionality. For now, I am interested in
> > Graphics functionality of the ATI card and not GPGPU functionality.
> >
> > I will appreciate if you can help me with some information on solving
> > this problem. Let me know if I should be asking this question on
> > another forum. Please keep me in CC.
>
> Looks like dri-devel material, added to CC.
>
> As a first guess, maybe the system memory pages accessed by the GPU GART
> aren't the same ones intended for this by the VM.
I actually have patches for that (sorry for the late reply).
Try:
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git devel/ttm.pci-api.v3
But I am not sure if they would make any difference here. You said
you are using KVM-QEMU - you must also be using an IOMMU? Does the IOMMU
give you any errors?
WARNING: multiple messages have this Message-ID (diff)
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: "Michel Dänzer" <michel@daenzer.net>
Cc: Prasad Joshi <prasadjoshi124@gmail.com>,
linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: A query on frame buffers
Date: Fri, 7 Jan 2011 11:58:13 -0500 [thread overview]
Message-ID: <20110107165813.GA24320@dumpdata.com> (raw)
In-Reply-To: <1294390835.6019.218.camel@thor.local>
> > The errors
> >
> > [ 3.778476] [drm:r100_ring_test] *ERROR* radeon: ring test failed
> > (sracth(0x15E4)=0xCAFEDEAD)
> > [ 3.781010] [drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
> > [ 3.782542] radeon 0000:00:04.0: failled initializing CP (-22).
> > [ 3.784006] radeon 0000:00:04.0: Disabling GPU acceleration
> >
> > Seem to be disabling GPU functionality. For now, I am interested in
> > Graphics functionality of the ATI card and not GPGPU functionality.
> >
> > I will appreciate if you can help me with some information on solving
> > this problem. Let me know if I should be asking this question on
> > another forum. Please keep me in CC.
>
> Looks like dri-devel material, added to CC.
>
> As a first guess, maybe the system memory pages accessed by the GPU GART
> aren't the same ones intended for this by the VM.
I actually have patches for that (sorry for the late reply).
Try:
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git devel/ttm.pci-api.v3
But I am not sure if they would make any difference here. You said
you are using KVM-QEMU - you must also be using an IOMMU? Does the IOMMU
give you any errors?
next prev parent reply other threads:[~2011-01-07 16:58 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-21 4:51 A query on frame buffers Prasad Joshi
2010-12-27 15:30 ` Konrad Rzeszutek Wilk
2011-01-07 2:42 ` Prasad Joshi
2011-01-07 9:00 ` Michel Dänzer
2011-01-07 9:00 ` Michel Dänzer
2011-01-07 16:58 ` Konrad Rzeszutek Wilk [this message]
2011-01-07 16:58 ` Konrad Rzeszutek Wilk
2011-01-07 17:47 ` Prasad Joshi
2011-01-07 17:47 ` Prasad Joshi
2011-01-07 19:24 ` Konrad Rzeszutek Wilk
2011-01-07 19:24 ` Konrad Rzeszutek Wilk
2011-01-08 2:12 ` Prasad Joshi
2011-01-08 2:12 ` Prasad Joshi
2011-01-10 12:31 ` Prasad Joshi
2011-01-10 12:31 ` Prasad Joshi
2011-01-10 18:17 ` Konrad Rzeszutek Wilk
2011-01-10 18:17 ` Konrad Rzeszutek Wilk
2011-01-10 19:57 ` Prasad Joshi
2011-01-10 19:57 ` Prasad Joshi
2011-01-10 20:24 ` Konrad Rzeszutek Wilk
2011-01-10 20:24 ` Konrad Rzeszutek Wilk
2011-01-11 16:58 ` Prasad Joshi
2011-01-11 17:10 ` Alex Deucher
2011-01-11 17:10 ` Alex Deucher
2011-01-11 18:17 ` Konrad Rzeszutek Wilk
2011-01-11 18:17 ` Konrad Rzeszutek Wilk
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