iommu/amd: Rename DTE_INTTABLEN* and MAX_IRQS_PER_TABLE macro

AMD iommu can support both 512 and 2K interrupts on newer platform. Hence
add suffix "512" to the existing macros.

Signed-off-by: Sairaj Kodilkar <sarunkod@amd.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20250307095822.2274-4-sarunkod@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/amd/amd_iommu_types.h

@@ -313,10 +313,10 @@
  * AMD IOMMU hardware only support 512 IRTEs despite
  * the architectural limitation of 2048 entries.
  */
-#define DTE_INTTABLEN_VALUE     9ULL
-#define DTE_INTTABLEN           (DTE_INTTABLEN_VALUE << 1)
 #define DTE_INTTABLEN_MASK      (0xfULL << 1)
-#define MAX_IRQS_PER_TABLE      (1 << DTE_INTTABLEN_VALUE)
+#define DTE_INTTABLEN_VALUE_512 9ULL
+#define DTE_INTTABLEN_512       (DTE_INTTABLEN_VALUE_512 << 1)
+#define MAX_IRQS_PER_TABLE_512  BIT(DTE_INTTABLEN_VALUE_512)
 
 #define PAGE_MODE_NONE    0x00
 #define PAGE_MODE_1_LEVEL 0x01

drivers/iommu/amd/init.c

@@ -1060,7 +1060,7 @@ static bool __copy_device_table(struct amd_iommu *iommu)
 		int_tab_len = old_devtb[devid].data[2] & DTE_INTTABLEN_MASK;
 		if (irq_v && (int_ctl || int_tab_len)) {
 			if ((int_ctl != DTE_IRQ_REMAP_INTCTL) ||
-			    (int_tab_len != DTE_INTTABLEN)) {
+			    (int_tab_len != DTE_INTTABLEN_512)) {
 				pr_err("Wrong old irq remapping flag: %#x\n", devid);
 				memunmap(old_devtb);
 				return false;

drivers/iommu/amd/iommu.c

@@ -3090,7 +3090,7 @@ static void set_dte_irq_entry(struct amd_iommu *iommu, u16 devid,
 	new &= ~DTE_IRQ_PHYS_ADDR_MASK;
 	new |= iommu_virt_to_phys(table->table);
 	new |= DTE_IRQ_REMAP_INTCTL;
-	new |= DTE_INTTABLEN;
+	new |= DTE_INTTABLEN_512;
 	new |= DTE_IRQ_REMAP_ENABLE;
 	WRITE_ONCE(dte->data[2], new);