powerpc/powernv: Add XICS emulation APIs
OPAL provides an emulated XICS interrupt controller to
use as a fallback on newer processors that don't have a
XICS. It's meant as a way to provide backward compatibility
with future processors. Add the corresponding interfaces.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index 6de1e4e..b349621 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -162,7 +162,11 @@
#define OPAL_PCI_GET_PRESENCE_STATE 119
#define OPAL_PCI_GET_POWER_STATE 120
#define OPAL_PCI_SET_POWER_STATE 121
-#define OPAL_LAST 121
+#define OPAL_INT_GET_XIRR 122
+#define OPAL_INT_SET_CPPR 123
+#define OPAL_INT_EOI 124
+#define OPAL_INT_SET_MFRR 125
+#define OPAL_LAST 125
/* Device tree flags */
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 52b9f4a..162ebe6 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -218,6 +218,11 @@
uint64_t data);
int64_t opal_pci_poll2(uint64_t id, uint64_t data);
+int64_t opal_int_get_xirr(uint32_t *out_xirr, bool just_poll);
+int64_t opal_int_set_cppr(uint8_t cppr);
+int64_t opal_int_eoi(uint32_t xirr);
+int64_t opal_int_set_mfrr(uint32_t cpu, uint8_t mfrr);
+
/* Internal functions */
extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
int depth, void *data);