3 files changed, 11 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index 7df005965634..ced1ef21e981 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -193,7 +193,8 @@
 #define OPAL_IMC_COUNTERS_INIT			149
 #define OPAL_IMC_COUNTERS_START			150
 #define OPAL_IMC_COUNTERS_STOP			151
-#define OPAL_LAST				151
+#define OPAL_PCI_SET_P2P			157
+#define OPAL_LAST				157
 
 /* Device tree flags */
 
@@ -1094,6 +1095,11 @@ enum {
 };
 
 
+/* PCI p2p descriptor */
+#define OPAL_PCI_P2P_ENABLE		0x1
+#define OPAL_PCI_P2P_LOAD		0x2
+#define OPAL_PCI_P2P_STORE		0x4
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __OPAL_API_H */
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 6b8513c3ad40..5a715e66f910 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -267,6 +267,8 @@ int64_t opal_xive_allocate_irq(uint32_t chip_id);
 int64_t opal_xive_free_irq(uint32_t girq);
 int64_t opal_xive_sync(uint32_t type, uint32_t id);
 int64_t opal_xive_dump(uint32_t type, uint32_t id);
+int64_t opal_pci_set_p2p(uint64_t phb_init, uint64_t phb_target,
+			uint64_t desc, uint16_t pe_number);
 
 int64_t opal_imc_counters_init(uint32_t type, uint64_t address,
 							uint64_t cpu_pir);
diff --git a/arch/powerpc/include/asm/pnv-pci.h b/arch/powerpc/include/asm/pnv-pci.h
index de9681034353..3e5cf251ad9a 100644
--- a/arch/powerpc/include/asm/pnv-pci.h
+++ b/arch/powerpc/include/asm/pnv-pci.h
@@ -26,6 +26,8 @@ extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state);
 extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state);
 extern int pnv_pci_set_power_state(uint64_t id, uint8_t state,
 				   struct opal_msg *msg);
+extern int pnv_pci_set_p2p(struct pci_dev *initiator, struct pci_dev *target,
+			   u64 desc);
 
 int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode);
 int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,