[PATCH] Revert "iommu/arm-smmu-v3: Decrease the queue size of evtq and priq"

[Will Deacon]

On Tue, Dec 07, 2021 at 02:32:48PM +0800, Zhou Wang wrote:
> The commit f115f3c0d5d8 ("iommu/arm-smmu-v3: Decrease the queue size of
> evtq and priq") decreases evtq and priq, which may lead evtq/priq to be
> full with fault events, e.g HiSilicon ZIP/SEC/HPRE have maximum 1024 queues
> in one device, every queue could be binded with one process and trigger a
> fault event. So let's revert f115f3c0d5d8.
> 
> In fact, if an implementation of SMMU really does not need so long evtq
> and priq, value of IDR1_EVTQS and IDR1_PRIQS can be set to proper ones.
> 
> Signed-off-by: Zhou Wang <wangzhou1 at hisilicon.com>
> ---
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)

I'd like an Ack from Zhen Lei on this, as the aim of the original patch
was to reduce memory consumption.

Will