RE: [PATCHv3 00/11] staging tidspbridge: iommu migration

[Guzman Lugo, Fernando]

> -----Original Message-----
> From: Felipe Contreras [mailto:felipe.contreras@xxxxxxxxx] 
> Sent: Sunday, October 10, 2010 12:33 PM
> To: Guzman Lugo, Fernando
> Cc: gregkh@xxxxxxx; felipe.contreras@xxxxxxxxx; 
> ameya.palande@xxxxxxxxx; Menon, Nishanth; 
> Hiroshi.DOYU@xxxxxxxxx; ohad@xxxxxxxxxx; 
> linux-kernel@xxxxxxxxxxxxxxx; andy.shevchenko@xxxxxxxxx; 
> linux-omap@xxxxxxxxxxxxxxx
> Subject: Re: [PATCHv3 00/11] staging tidspbridge: iommu migration
> 
> On Tue, Oct 5, 2010 at 11:35 PM, Fernando Guzman Lugo 
> <x0095840@xxxxxx> wrote:
> > This set of patches remove the dspbridge custom mmu 
> implementation and 
> > use iommu module instead.
> 
> I have tried this, it works for simple tests, but not real use-cases.
> I applied all your iommu patches. How did you test this?

Have you applied:

- "scatterlist: define SG chain for arm architecture"
- "iovmm: replace __iounmap with omap_iounmap"
- "iovmm: add superpages support to fixed da address"
- "iovmm: IVA2 MMU range is from 0x11000000 to 0xFFFFFFFF"
- "iovmm: no gap checking for fixed address"

Also make sure your baseline have this patch:

- "omap:iommu-load cam register before flushing the entry"


What kind of error are you getting?

I don't have a complete framework to test MM testcases at this moment
I did not stress test but a bridge level, and they were good, just some
Mailbox issues beucase of the lack of some patches. So I was waiting
All missing patches are merge in order to do more stressing testing because
I think there is some race conditions in iommu module that need to be fixed.

You can email me the case and erros you are facing privately and I will
Check them, maybe it is because of missing patches.

Regards,
Fernando.

> 
> --
> Felipe Contreras
> --
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