Re: [PATCH v8 3/3] iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126

2017-06-21 Thread Marc Zyngier
On 21/06/17 10:08, Will Deacon wrote: > Hi Geetha, > > On Wed, Jun 21, 2017 at 12:09:45PM +0530, Geetha Akula wrote: >> On Tue, Jun 20, 2017 at 11:30 PM, Will Deacon wrote: >>> On Tue, Jun 20, 2017 at 07:47:39PM +0530, Geetha sowjanya wrote: From: Geetha Sowjanya

Re: [PATCH v8 3/3] iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126

2017-06-21 Thread Will Deacon
Hi Geetha, On Wed, Jun 21, 2017 at 12:09:45PM +0530, Geetha Akula wrote: > On Tue, Jun 20, 2017 at 11:30 PM, Will Deacon wrote: > > On Tue, Jun 20, 2017 at 07:47:39PM +0530, Geetha sowjanya wrote: > >> From: Geetha Sowjanya > >> > >> Cavium

Re: [PATCH v8 3/3] iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126

2017-06-21 Thread Geetha Akula
Hi Will, On Tue, Jun 20, 2017 at 11:30 PM, Will Deacon wrote: > On Tue, Jun 20, 2017 at 07:47:39PM +0530, Geetha sowjanya wrote: >> From: Geetha Sowjanya >> >> Cavium ThunderX2 SMMU doesn't support MSI and also doesn't have unique irq >>

Re: [PATCH v8 3/3] iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126

2017-06-20 Thread Will Deacon
On Tue, Jun 20, 2017 at 07:47:39PM +0530, Geetha sowjanya wrote: > From: Geetha Sowjanya > > Cavium ThunderX2 SMMU doesn't support MSI and also doesn't have unique irq > lines for gerror, eventq and cmdq-sync. > > SHARED_IRQ option is set as a errata workaround,

[PATCH v8 3/3] iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126

2017-06-20 Thread Geetha sowjanya
From: Geetha Sowjanya Cavium ThunderX2 SMMU doesn't support MSI and also doesn't have unique irq lines for gerror, eventq and cmdq-sync. SHARED_IRQ option is set as a errata workaround, which allows to share the irq line by register single irq handler for all