On 2021-08-10 23:38, Will Deacon wrote:
On Tue, Aug 03, 2021 at 11:09:17AM +0530, Sai Prakash Ranjan wrote:
On 2021-08-02 21:13, Will Deacon wrote:
> On Wed, Jun 23, 2021 at 07:12:01PM +0530, Sai Prakash Ranjan wrote:
> > diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c
> >
On Tue, Aug 03, 2021 at 11:09:17AM +0530, Sai Prakash Ranjan wrote:
> On 2021-08-02 21:13, Will Deacon wrote:
> > On Wed, Jun 23, 2021 at 07:12:01PM +0530, Sai Prakash Ranjan wrote:
> > > diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c
> > > b/drivers/iommu/arm/arm-smmu/arm-smmu.c
> > > index
On 2021-08-02 21:13, Will Deacon wrote:
On Wed, Jun 23, 2021 at 07:12:01PM +0530, Sai Prakash Ranjan wrote:
Currently for iommu_unmap() of large scatter-gather list with page
size
elements, the majority of time is spent in flushing of partial walks
in
__arm_lpae_unmap() which is a VA based
On Wed, Jun 23, 2021 at 07:12:01PM +0530, Sai Prakash Ranjan wrote:
> Currently for iommu_unmap() of large scatter-gather list with page size
> elements, the majority of time is spent in flushing of partial walks in
> __arm_lpae_unmap() which is a VA based TLB invalidation invalidating
>
Hi Robin, Will,
On 2021-07-12 09:39, Sai Prakash Ranjan wrote:
Hi Robin,
On 2021-06-23 19:12, Sai Prakash Ranjan wrote:
Currently for iommu_unmap() of large scatter-gather list with page
size
elements, the majority of time is spent in flushing of partial walks
in
__arm_lpae_unmap() which is
Hi Robin,
On 2021-06-23 19:12, Sai Prakash Ranjan wrote:
Currently for iommu_unmap() of large scatter-gather list with page size
elements, the majority of time is spent in flushing of partial walks in
__arm_lpae_unmap() which is a VA based TLB invalidation invalidating
page-by-page on iommus
Currently for iommu_unmap() of large scatter-gather list with page size
elements, the majority of time is spent in flushing of partial walks in
__arm_lpae_unmap() which is a VA based TLB invalidation invalidating
page-by-page on iommus like arm-smmu-v2 (TLBIVA).
For example: to unmap a 32MB
