Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-09-26 Thread Laurent Pinchart
Hi Steve, On Saturday 24 September 2011 15:44:52 Steve Sakoman wrote: On Tue, Mar 29, 2011 at 8:32 AM, Laurent Pinchart laurent.pinch...@ideasonboard.com wrote: I think that Sakari's patches correcty fix the problems he noticed. However, they won't fix one basic issue, which is that the

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-09-24 Thread Steve Sakoman
On Tue, Mar 29, 2011 at 8:32 AM, Laurent Pinchart laurent.pinch...@ideasonboard.com wrote: I think that Sakari's patches correcty fix the problems he noticed. However, they won't fix one basic issue, which is that the iommu2 module won't be automatically pulled in when the omap3isp module is

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-04-06 Thread Laurent Pinchart
Hi David, On Tuesday 05 April 2011 13:54:09 David Cohen wrote: On Tue, Apr 5, 2011 at 2:23 PM, Laurent Pinchart wrote: [snip] We only have iommu2.ko at the moment. I've heard about an iommu1.ko being worked on, but I don't have more information. We don't know whether the OMAP5 will be

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-04-05 Thread Sakari Ailus
Laurent Pinchart wrote: Hi David, Hi Laurent, David, others, On Wednesday 30 March 2011 17:50:17 David Cohen wrote: On Wed, Mar 30, 2011 at 4:56 PM, Laurent Pinchart wrote: On Wednesday 30 March 2011 15:50:37 Sakari Ailus wrote: Laurent Pinchart wrote: On Wednesday 30 March 2011 10:16:56

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-04-05 Thread Laurent Pinchart
Hi Sakari, On Tuesday 05 April 2011 11:03:21 Sakari Ailus wrote: Laurent Pinchart wrote: [snip] Let me try to summarize the issue and the requirements. IOMMU support on OMAP platforms uses an OMAP-specific implementation, divided into 3 layers: - the IOVMM layer

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-04-05 Thread David Cohen
On Tue, Apr 5, 2011 at 2:23 PM, Laurent Pinchart laurent.pinch...@ideasonboard.com wrote: Hi Sakari, Hi Laurent, Sakari, On Tuesday 05 April 2011 11:03:21 Sakari Ailus wrote: Laurent Pinchart wrote: [snip] Let me try to summarize the issue and the requirements. IOMMU support on OMAP

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-04-05 Thread Sakari Ailus
Laurent Pinchart wrote: Hi Sakari, Hi Laurent, On Tuesday 05 April 2011 11:03:21 Sakari Ailus wrote: Laurent Pinchart wrote: [snip] Let me try to summarize the issue and the requirements. IOMMU support on OMAP platforms uses an OMAP-specific implementation, divided into 3 layers: -

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-04-04 Thread Laurent Pinchart
Hi David, On Wednesday 30 March 2011 17:50:17 David Cohen wrote: On Wed, Mar 30, 2011 at 4:56 PM, Laurent Pinchart wrote: On Wednesday 30 March 2011 15:50:37 Sakari Ailus wrote: Laurent Pinchart wrote: On Wednesday 30 March 2011 10:16:56 Sakari Ailus wrote: Laurent Pinchart wrote:

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-30 Thread Sakari Ailus
Hi Laurent and Omar, Laurent Pinchart wrote: On Friday 25 March 2011 20:37:55 Ramirez Luna, Omar wrote: On Fri, Mar 25, 2011 at 10:13 AM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com wrote: Hi, This patchset is aimed to fix a problem in arch_iommu implementation references. When

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-30 Thread Laurent Pinchart
Hi Sakari, On Wednesday 30 March 2011 10:16:56 Sakari Ailus wrote: Laurent Pinchart wrote: On Friday 25 March 2011 20:37:55 Ramirez Luna, Omar wrote: On Fri, Mar 25, 2011 at 10:13 AM, Sakari Ailus wrote: Hi, This patchset is aimed to fix a problem in arch_iommu implementation

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-30 Thread Sakari Ailus
Laurent Pinchart wrote: Hi Sakari, Hi Laurent, On Wednesday 30 March 2011 10:16:56 Sakari Ailus wrote: Laurent Pinchart wrote: On Friday 25 March 2011 20:37:55 Ramirez Luna, Omar wrote: On Fri, Mar 25, 2011 at 10:13 AM, Sakari Ailus wrote: Hi, This patchset is aimed to fix a problem in

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-30 Thread Laurent Pinchart
On Wednesday 30 March 2011 15:50:37 Sakari Ailus wrote: Laurent Pinchart wrote: Hi Sakari, Hi Laurent, On Wednesday 30 March 2011 10:16:56 Sakari Ailus wrote: Laurent Pinchart wrote: On Friday 25 March 2011 20:37:55 Ramirez Luna, Omar wrote: On Fri, Mar 25, 2011 at 10:13 AM, Sakari

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-30 Thread David Cohen
On Wed, Mar 30, 2011 at 4:56 PM, Laurent Pinchart laurent.pinch...@ideasonboard.com wrote: On Wednesday 30 March 2011 15:50:37 Sakari Ailus wrote: Laurent Pinchart wrote: Hi Sakari, Hi Laurent, On Wednesday 30 March 2011 10:16:56 Sakari Ailus wrote: Laurent Pinchart wrote: On Friday

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-29 Thread Laurent Pinchart
On Friday 25 March 2011 20:37:55 Ramirez Luna, Omar wrote: On Fri, Mar 25, 2011 at 10:13 AM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com wrote: Hi, This patchset is aimed to fix a problem in arch_iommu implementation references. When an actual arch_iommu implementation is not

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-29 Thread Laurent Pinchart
Hi, On Monday 28 March 2011 03:42:23 Ramirez Luna, Omar wrote: On Sun, Mar 27, 2011 at 12:27 PM, Sakari Ailus wrote: Ramirez Luna, Omar wrote: On Fri, Mar 25, 2011 at 10:13 AM, Sakari Ailus wrote: This patchset is aimed to fix a problem in arch_iommu implementation references. When an

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-28 Thread David Cohen
Hi Sakari, On Sun, Mar 27, 2011 at 8:27 PM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com wrote: Ramirez Luna, Omar wrote: On Fri, Mar 25, 2011 at 10:13 AM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com wrote: Hi, This patchset is aimed to fix a problem in arch_iommu

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-28 Thread David Cohen
On Mon, Mar 28, 2011 at 4:42 AM, Ramirez Luna, Omar omar.rami...@ti.com wrote: Hi, On Sun, Mar 27, 2011 at 12:27 PM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com wrote: Ramirez Luna, Omar wrote: On Fri, Mar 25, 2011 at 10:13 AM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-27 Thread Sakari Ailus
Ramirez Luna, Omar wrote: On Fri, Mar 25, 2011 at 10:13 AM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com wrote: Hi, This patchset is aimed to fix a problem in arch_iommu implementation references. When an actual arch_iommu implementation is not loaded while iommu_get() is being

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-27 Thread Ramirez Luna, Omar
Hi, On Sun, Mar 27, 2011 at 12:27 PM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com wrote: Ramirez Luna, Omar wrote: On Fri, Mar 25, 2011 at 10:13 AM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com wrote: This patchset is aimed to fix a problem in arch_iommu implementation

[PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-25 Thread Sakari Ailus
Hi, This patchset is aimed to fix a problem in arch_iommu implementation references. When an actual arch_iommu implementation is not loaded while iommu_get() is being called results to a kernel oops, as well as removing an arch_iommu implementation which is in use. This patchset fixes both

[PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-25 Thread Sakari Ailus
Hi, [Resend: the patches were accidentally sent to linux-media instead. Apologies.] This patchset is aimed to fix a problem in arch_iommu implementation references. When an actual arch_iommu implementation is not loaded while iommu_get() is being called results to a kernel oops, as well as

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-25 Thread David Cohen
On Fri, Mar 25, 2011 at 5:17 PM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com wrote: Hi, Hi Sakari, [Resend: the patches were accidentally sent to linux-media instead. Apologies.] This patchset is aimed to fix a problem in arch_iommu implementation references. When an actual

Re: [PATCH 0/4] iommu: Prevent oops in iommu_get() and while arch_iommu is in use

2011-03-25 Thread Ramirez Luna, Omar
On Fri, Mar 25, 2011 at 10:13 AM, Sakari Ailus sakari.ai...@maxwell.research.nokia.com wrote: Hi, This patchset is aimed to fix a problem in arch_iommu implementation references. When an actual arch_iommu implementation is not loaded while iommu_get() is being called results to a kernel oops,