Re: Problems with alpha/pci + radeon/ttm

2010-07-01 Thread Konrad Rzeszutek Wilk
On Sun, Jun 27, 2010 at 12:58:07AM -0400, Matt Turner wrote: On Sun, Jun 27, 2010 at 12:20 AM, FUJITA Tomonori fujita.tomon...@lab.ntt.co.jp wrote: On Thu, 24 Jun 2010 10:53:52 -0400 Matt Turner matts...@gmail.com wrote: Seems that the IOMMU can't find 128 pages. It's likely due to:

Re: Problems with alpha/pci + radeon/ttm

2010-06-28 Thread FUJITA Tomonori
On Thu, 24 Jun 2010 21:51:40 +1200 Michael Cree mc...@orcon.net.nz wrote: Is this a regression (what kernel version worked)? Seems that the IOMMU can't find 128 pages. It's likely due to: - out of the IOMMU space (possibly someone doesn't free the IOMMU space). or - the

Re: Problems with alpha/pci + radeon/ttm

2010-06-28 Thread Matt Turner
On Sun, Jun 27, 2010 at 12:20 AM, FUJITA Tomonori fujita.tomon...@lab.ntt.co.jp wrote: On Thu, 24 Jun 2010 10:53:52 -0400 Matt Turner matts...@gmail.com wrote: Seems that the IOMMU can't find 128 pages. It's likely due to: - out of the IOMMU space (possibly someone doesn't free the IOMMU

Re: Problems with alpha/pci + radeon/ttm

2010-06-28 Thread Dave Airlie
On Sun, Jun 27, 2010 at 8:46 PM, Michael Cree mc...@orcon.net.nz wrote: On 27/06/10 16:20, FUJITA Tomonori wrote: On Thu, 24 Jun 2010 21:51:40 +1200 Michael Creemc...@orcon.net.nz  wrote: Is this a regression (what kernel version worked)? Seems that the IOMMU can't find 128 pages. It's

Re: Problems with alpha/pci + radeon/ttm

2010-06-28 Thread Michael Cree
On 28/06/10 11:14, Dave Airlie wrote: The bus error is caused by the kernel, its something alpha specific with how mmap works, I'm not sure if alpha needs some special mmap flags or something, Neither am I. All I know is that Alpha reorders CPU instructions more aggressively than most other

Re: Problems with alpha/pci + radeon/ttm

2010-06-28 Thread Richard Henderson
On 06/28/2010 02:03 AM, Michael Cree wrote: On 28/06/10 11:14, Dave Airlie wrote: The bus error is caused by the kernel, its something alpha specific with how mmap works, I'm not sure if alpha needs some special mmap flags or something, Neither am I. All I know is that Alpha reorders CPU

Re: Problems with alpha/pci + radeon/ttm

2010-06-24 Thread Matt Turner
On Tue, Jun 22, 2010 at 1:59 AM, FUJITA Tomonori fujita.tomon...@lab.ntt.co.jp wrote: On Mon, 21 Jun 2010 17:19:43 -0400 Matt Turner matts...@gmail.com wrote: Michael Cree and I have been debugging FDO bug 26403 [1]. I tried booting with `radeon.test=1` and found this, which I think is

Re: Problems with alpha/pci + radeon/ttm

2010-06-24 Thread Matt Turner
On Thu, Jun 24, 2010 at 5:51 AM, Michael Cree mc...@orcon.net.nz wrote: On 22/06/10 20:32, Dave Airlie wrote: On Tue, Jun 22, 2010 at 3:59 PM, FUJITA Tomonori fujita.tomon...@lab.ntt.co.jp  wrote: On Mon, 21 Jun 2010 17:19:43 -0400 Matt Turnermatts...@gmail.com  wrote: Michael Cree and I

Re: Problems with alpha/pci + radeon/ttm

2010-06-22 Thread FUJITA Tomonori
On Mon, 21 Jun 2010 17:19:43 -0400 Matt Turner matts...@gmail.com wrote: Michael Cree and I have been debugging FDO bug 26403 [1]. I tried booting with `radeon.test=1` and found this, which I think is related: [drm] Tested GTT-VRAM and VRAM-GTT copy for GTT offset 0x202000 [drm] Tested