iommu/amd: Rename DEV_DOMID_MASK to DTE_DOMID_MASK

Also change the define to use GENMASK_ULL instead.
There is no functional change.

Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

Author: ssuthiku-amd

drivers/iommu/amd/amd_iommu_types.h

@@ -358,7 +358,7 @@
 
 #define DTE_FLAG_IOTLB	BIT_ULL(32)
 #define DTE_FLAG_MASK	(0x3ffULL << 32)
-#define DEV_DOMID_MASK	0xffffULL
+#define DTE_DOMID_MASK	GENMASK_ULL(15, 0)
 
 #define DTE_GCR3_14_12	GENMASK_ULL(60, 58)
 #define DTE_GCR3_30_15	GENMASK_ULL(31, 16)

drivers/iommu/amd/init.c

@@ -1179,7 +1179,7 @@ static bool __reuse_device_table(struct amd_iommu *iommu)
 	for (devid = 0; devid <= pci_seg->last_bdf; devid++) {
 		old_dev_tbl_entry = &pci_seg->old_dev_tbl_cpy[devid];
 		dte_v = FIELD_GET(DTE_FLAG_V, old_dev_tbl_entry->data[0]);
-		dom_id = FIELD_GET(DEV_DOMID_MASK, old_dev_tbl_entry->data[1]);
+		dom_id = FIELD_GET(DTE_DOMID_MASK, old_dev_tbl_entry->data[1]);
 
 		if (!dte_v || !dom_id)
 			continue;

drivers/iommu/amd/iommu.c

@@ -2120,7 +2120,7 @@ static void set_dte_entry(struct amd_iommu *iommu,
 	if (dev_data->ats_enabled)
 		new.data[1] |= DTE_FLAG_IOTLB;
 
-	old_domid = READ_ONCE(dte->data[1]) & DEV_DOMID_MASK;
+	old_domid = READ_ONCE(dte->data[1]) & DTE_DOMID_MASK;
 	new.data[1] |= domid;
 
 	/*