soc: fsl: qbman: Use iommu_paging_domain_alloc()

An iommu domain is allocated in portal_set_cpu() and is attached to
pcfg->dev in the same function.

Use iommu_paging_domain_alloc() to make it explicit.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240610085555.88197-14-baolu.lu@linux.intel.com
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>

diff --git a/drivers/soc/fsl/qbman/qman_portal.c b/drivers/soc/fsl/qbman/qman_portal.c
index e23b60618c1a15aa7f89f655ded6bdbb732ae2a5..456ef5d5c1996bd04381fefd3d22340f068dd727 100644 (file)
--- a/drivers/soc/fsl/qbman/qman_portal.c
+++ b/drivers/soc/fsl/qbman/qman_portal.c
@@ -48,9 +48,10 @@ static void portal_set_cpu(struct qm_portal_config *pcfg, int cpu)
        struct device *dev = pcfg->dev;
        int ret;
 
-       pcfg->iommu_domain = iommu_domain_alloc(&platform_bus_type);
-       if (!pcfg->iommu_domain) {
+       pcfg->iommu_domain = iommu_paging_domain_alloc(dev);
+       if (IS_ERR(pcfg->iommu_domain)) {
                dev_err(dev, "%s(): iommu_domain_alloc() failed", __func__);
+               pcfg->iommu_domain = NULL;
                goto no_iommu;
        }
        ret = fsl_pamu_configure_l1_stash(pcfg->iommu_domain, cpu);