+enum amd_iommu_intr_mode_type {
+ AMD_IOMMU_GUEST_IR_LEGACY,
+
+ /* This mode is not visible to users. It is used when
+ * we cannot fully enable vAPIC and fallback to only support
+ * legacy interrupt remapping via 128-bit IRTE.
+ */
+ AMD_IOMMU_GUEST_IR_LEGACY_GA,
+ AMD_IOMMU_GUEST_IR_VAPIC,
+};
+
+#define AMD_IOMMU_GUEST_IR_GA(x) (x == AMD_IOMMU_GUEST_IR_VAPIC || \
+ x == AMD_IOMMU_GUEST_IR_LEGACY_GA)
+
+#define AMD_IOMMU_GUEST_IR_VAPIC(x) (x == AMD_IOMMU_GUEST_IR_VAPIC)
+
+union irte {
+ u32 val;
+ struct {
+ u32 valid : 1,
+ no_fault : 1,
+ int_type : 3,
+ rq_eoi : 1,
+ dm : 1,
+ rsvd_1 : 1,
+ destination : 8,
+ vector : 8,
+ rsvd_2 : 8;
+ } fields;
+};
+
+union irte_ga_lo {
+ u64 val;
+
+ /* For int remapping */
+ struct {
+ u64 valid : 1,
+ no_fault : 1,
+ /* ------ */
+ int_type : 3,
+ rq_eoi : 1,
+ dm : 1,
+ /* ------ */
+ guest_mode : 1,
+ destination : 8,
+ rsvd : 48;
+ } fields_remap;
+
+ /* For guest vAPIC */
+ struct {
+ u64 valid : 1,
+ no_fault : 1,
+ /* ------ */
+ ga_log_intr : 1,
+ rsvd1 : 3,
+ is_run : 1,
+ /* ------ */
+ guest_mode : 1,
+ destination : 8,
+ rsvd2 : 16,
+ ga_tag : 32;
+ } fields_vapic;
+};
+
+union irte_ga_hi {
+ u64 val;
+ struct {
+ u64 vector : 8,
+ rsvd_1 : 4,
+ ga_root_ptr : 40,
+ rsvd_2 : 12;
+ } fields;
+};
+
+struct irte_ga {
+ union irte_ga_lo lo;
+ union irte_ga_hi hi;
+};
+
+struct irq_2_irte {
+ u16 devid; /* Device ID for IRTE table */
+ u16 index; /* Index into IRTE table*/
+};
+
+struct amd_ir_data {
+ u32 cached_ga_tag;
+ struct irq_2_irte irq_2_irte;
+ struct msi_msg msi_entry;
+ void *entry; /* Pointer to union irte or struct irte_ga */
+ void *ref; /* Pointer to the actual irte */
+};
+
+struct amd_irte_ops {
+ void (*prepare)(void *, u32, u32, u8, u32, int);
+ void (*activate)(void *, u16, u16);
+ void (*deactivate)(void *, u16, u16);
+ void (*set_affinity)(void *, u16, u16, u8, u32);
+ void *(*get)(struct irq_remap_table *, int);
+ void (*set_allocated)(struct irq_remap_table *, int);
+ bool (*is_allocated)(struct irq_remap_table *, int);
+ void (*clear_allocated)(struct irq_remap_table *, int);
+};
+
+#ifdef CONFIG_IRQ_REMAP
+extern struct amd_irte_ops irte_32_ops;
+extern struct amd_irte_ops irte_128_ops;
+#endif
+