Re: [PATCH v2] iommu/arm-smmu-v3: Increase CMDQ drain timeout value

2017-05-30 Thread Will Deacon
Hi Sunil, On Mon, May 29, 2017 at 02:41:59PM +0530, Sunil Kovvuri wrote: > On Fri, May 5, 2017 at 4:47 PM, wrote: > > From: Sunil Goutham > > > > Processing queue full of TLB invalidation commands might > > take more time on some platforms than

Re: [PATCH v2] iommu/arm-smmu-v3: Increase CMDQ drain timeout value

2017-05-29 Thread Sunil Kovvuri
On Fri, May 5, 2017 at 4:47 PM, wrote: > From: Sunil Goutham > > Processing queue full of TLB invalidation commands might > take more time on some platforms than current timeout > of 100us. So increased drain timeout value. > > Also now udelay time

[PATCH v2] iommu/arm-smmu-v3: Increase CMDQ drain timeout value

2017-05-05 Thread sunil . kovvuri
From: Sunil Goutham Processing queue full of TLB invalidation commands might take more time on some platforms than current timeout of 100us. So increased drain timeout value. Also now udelay time is increased exponentially for each poll. Signed-off-by: Sunil Goutham