Merge: iommu/tegra241-cmdqv: Fix alignment failure at max_n_shift

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/5834

# Merge Request Required Information

JIRA: https://issues.redhat.com/browse/RHEL-67994
Upstream Status: git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git
                 branch: arm/smmu

## Summary of Changes

A fix for an alignment issue in the recent virtual command queue support for Tegra.

## Approved Development Ticket(s)

Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>

Approved-by: Mark Langsdorf <mlangsdo@redhat.com>
Approved-by: Desnes Nunes <desnesn@redhat.com>
Approved-by: Donald Dutile <ddutile@redhat.com>
Approved-by: CKI KWF Bot <cki-ci-bot+kwf-gitlab-com@redhat.com>

Merged-by: Rado Vrbovsky <rvrbovsk@redhat.com>

Author: emmil

drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c

@@ -509,7 +509,8 @@ static int tegra241_vcmdq_alloc_smmu_cmdq(struct tegra241_vcmdq *vcmdq)
 
 	snprintf(name, 16, "vcmdq%u", vcmdq->idx);
 
-	q->llq.max_n_shift = VCMDQ_LOG2SIZE_MAX;
+	/* Queue size, capped to ensure natural alignment */
+	q->llq.max_n_shift = min_t(u32, CMDQ_MAX_SZ_SHIFT, VCMDQ_LOG2SIZE_MAX);
 
 	/* Use the common helper to init the VCMDQ, and then... */
 	ret = arm_smmu_init_one_queue(smmu, q, vcmdq->page0,