Re: Re: ATI radeon fails with "iommu=soft swiotlb=force" (seen on RV730/RV740 and RS780/RS800) . Test commited for JF

Re: Re: ATI radeon fails with "iommu=soft swiotlb=force" (seen on RV730/RV740 and RS780/RS800) . Test commited for JF

[Boris Derzhavets]

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Done via "git pull" for another close enough "linux-2.6-xen" clone :-
# git pull
# git checkout xen/master
# git log

commit 2a65ac0eea618596fb19a4ee36f8a4463aadad3d
Merge: 4907e6c... f68aa6d...
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date:   Fri Oct 2 11:42:04 2009 -0700

    Merge branch 'xen/dom0/drm' into xen/master
    
    * xen/dom0/drm:
      drm: free vmalloc dma memory properly
      drm: make sure all pages in vmalloc area are really DMA-ready
      drm: recompute vma->vm_page_prot after changing vm_flags

commit f68aa6d4b10c84e5674aa4301623616f72e5b8a7
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date:   Fri Oct 2 11:31:39 2009 -0700

    drm: free vmalloc dma memory properly
    
    Having allocated pages with drm_alloc_coherent, we need to free them with
    drm_free_coherent.  We're still not preserving the bus addresses so
    we're hoping the backend dma_ops implementation can cope with the ones
    we're making up.
    
    Derived from patch by Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
    
    Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

commit 93e7c3850b8431e19c9cba91413066bfd2360671
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date:   Fri Oct 2 11:16:09 2009 -0700

    drm: make sure all pages in vmalloc area are really DMA-ready
    
    Under Xen, vmalloc_32() isn't guaranteed to return pages which are really
    under 4G in machine physical addresses (only in virtual pseudo-physical
    addresses).  To work around this, implement a vmalloc variant which
    allocates each page with dma_alloc_coherent() to guarantee that each
    page is suitable for the device in question.

. . . . . . .

Boris

--- On Fri, 10/2/09, Jeremy Fitzhardinge <jeremy@goop.org> wrote:

From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [Xen-devel] Re: ATI radeon fails with "iommu=soft swiotlb=force" (seen on RV730/RV740 and RS780/RS800)
To: "Boris Derzhavets" <bderzhavets@yahoo.com>
Cc: dri-devel@lists.sourceforge.net, xen-devel@lists.xensource.com, JBeulich@novell.com, "Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>
Date: Friday, October 2, 2009, 2:42 PM

On 10/02/09 10:23, Boris Derzhavets wrote:
> Jeremy,
> Please,  be aware of bugzilla.xensource.com [1519]  the most recent
> entries :-
>
> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1519
>

Ah, OK.  I pushed a variant of Konrad's patches.  Could you try them out?

Thanks,
    J



      

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Re: Re: ATI radeon fails with "iommu=soft swiotlb=force" (seen on RV730/RV740 and RS780/RS800) . Test commited for JF

[Jeremy Fitzhardinge]

On 10/02/09 12:50, Boris Derzhavets wrote:
> Done via "git pull" for another close enough "linux-2.6-xen" clone :-
> # git pull
> # git checkout xen/master
> # git log
>

So you're saying it works?  I didn't see anything bad in the dmesg output.

If it is working, what does /proc/mtrr say?

Thanks,
    J

Re: Re: ATI radeon fails with "iommu=soft swiotlb=force" (seen on RV730/RV740 and RS780/RS800) . Test commited for JF

[Boris Derzhavets]

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Yes, it works.

root@ServerXen35:~# cat /proc/mtrr
reg00: base=0x0d0000000 ( 3328MB), size=  256MB, count=1: uncachable
reg01: base=0x0e0000000 ( 3584MB), size=  512MB, count=1: uncachable
reg02: base=0x000000000 (    0MB), size= 8192MB, count=1: write-back
reg03: base=0x200000000 ( 8192MB), size=  512MB, count=1: write-back
reg04: base=0x220000000 ( 8704MB), size=  256MB, count=1: write-back

Boris.

--- On Fri, 10/2/09, Jeremy Fitzhardinge <jeremy@goop.org> wrote:

From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [Xen-devel] Re: ATI radeon fails with "iommu=soft swiotlb=force" (seen on RV730/RV740 and RS780/RS800) . Test commited for JF
To: "Boris Derzhavets" <bderzhavets@yahoo.com>
Cc: dri-devel@lists.sourceforge.net, xen-devel@lists.xensource.com, JBeulich@novell.com, "Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>
Date: Friday, October 2, 2009, 5:07 PM

On 10/02/09 12:50, Boris Derzhavets wrote:
> Done via "git pull" for another close enough "linux-2.6-xen" clone :-
> # git pull
> # git checkout xen/master
> # git log
>

So you're saying it works?  I didn't see anything bad in the dmesg output.

If it is working, what does /proc/mtrr say?

Thanks,
    J


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http://lists.xensource.com/xen-devel



      

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Re: Re: ATI radeon fails with "iommu=soft swiotlb=force" (seen on RV730/RV740 and RS780/RS800) . DRM for Radeon 4650 on F11

[Boris Derzhavets]

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I've  also attempted to activate DRM for Radeon in kernel 2.6.31.1 ( the most recent) under Xen 3.4.1 & Libvirt 0.7.1-8 on top of F11 and lost GDM login at all.
Switching /etc/inittab to initdefault 3 also doesn't allow to login in text mode.
Disabling DRM ( rescue mode kernel rebuild) brings things back to usual behaviour.  X-Server just starts , no matter of DRM status ( vs Ubuntu 9.04 Server)

Boris.

--- On Sat, 10/3/09, Boris Derzhavets <bderzhavets@yahoo.com> wrote:

From: Boris Derzhavets <bderzhavets@yahoo.com>
Subject: Re: [Xen-devel] Re: ATI radeon fails with "iommu=soft swiotlb=force" (seen on RV730/RV740 and RS780/RS800) . Test commited for JF
To: "Jeremy Fitzhardinge" <jeremy@goop.org>
Cc: dri-devel@lists.sourceforge.net, xen-devel@lists.xensource.com, JBeulich@novell.com, "Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>
Date: Saturday, October 3, 2009, 3:20 AM

Yes, it works.

root@ServerXen35:~# cat /proc/mtrr
reg00: base=0x0d0000000 ( 3328MB), size=  256MB, count=1: uncachable
reg01: base=0x0e0000000 ( 3584MB), size=  512MB, count=1: uncachable
reg02: base=0x000000000 (    0MB), size= 8192MB, count=1: write-back
reg03: base=0x200000000 ( 8192MB), size=  512MB, count=1: write-back
reg04: base=0x220000000 ( 8704MB), size=  256MB, count=1: write-back

Boris.

--- On Fri, 10/2/09, Jeremy Fitzhardinge <jeremy@goop.org> wrote:

From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [Xen-devel] Re: ATI radeon fails with "iommu=soft swiotlb=force" (seen on RV730/RV740 and RS780/RS800) . Test commited for JF
To: "Boris
 Derzhavets" <bderzhavets@yahoo.com>
Cc: dri-devel@lists.sourceforge.net, xen-devel@lists.xensource.com, JBeulich@novell.com, "Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>
Date: Friday, October 2, 2009, 5:07 PM

On 10/02/09 12:50, Boris Derzhavets wrote:
> Done via "git pull" for another close enough "linux-2.6-xen" clone :-
> # git pull
> # git checkout xen/master
> # git log
>

So you're saying it works?  I didn't see anything bad in the dmesg output.

If it is working, what does /proc/mtrr say?

Thanks,
    J


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel





      
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