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 <b...@kernel.crashing.org>
---
arch/powerpc/include/asm/opal-api.h | 6 +++++-
arch/powerpc/include/asm/opal.h | 5 +++++
arch/powerpc/platforms/powernv/opal-wrappers.S | 4 ++++
3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/opal-api.h
b/arch/powerpc/include/asm/opal-api.h
index 72b5f27..170ba0c 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 3b369e9..42f0c95 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -218,6 +218,11 @@ int64_t opal_pci_set_power_state(uint64_t async_token,
uint64_t id,
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);
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S
b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 7979d6d..c7764f9 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -307,3 +307,7 @@ OPAL_CALL(opal_get_device_tree,
OPAL_GET_DEVICE_TREE);
OPAL_CALL(opal_pci_get_presence_state, OPAL_PCI_GET_PRESENCE_STATE);
OPAL_CALL(opal_pci_get_power_state, OPAL_PCI_GET_POWER_STATE);
OPAL_CALL(opal_pci_set_power_state, OPAL_PCI_SET_POWER_STATE);
+OPAL_CALL(opal_int_get_xirr, OPAL_INT_GET_XIRR);
+OPAL_CALL(opal_int_set_cppr, OPAL_INT_SET_CPPR);
+OPAL_CALL(opal_int_eoi, OPAL_INT_EOI);
+OPAL_CALL(opal_int_set_mfrr, OPAL_INT_SET_MFRR);
--
2.7.4
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
