From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: linuxppc-dev@ozlabs.org
Subject: [PATCH 01/14] powerpc/powernv: Add XICS emulation APIs
Date: Fri, 8 Jul 2016 16:37:05 +1000 [thread overview]
Message-ID: <1467959838-6900-1-git-send-email-benh@kernel.crashing.org> (raw)
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>
---
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
next reply other threads:[~2016-07-08 6:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-08 6:37 Benjamin Herrenschmidt [this message]
2016-07-08 6:37 ` [PATCH 02/14] powerpc/irq: Add support for HV virtualization interrupts Benjamin Herrenschmidt
2016-07-16 10:40 ` Michael Ellerman
2016-07-16 21:33 ` Benjamin Herrenschmidt
2016-07-16 22:55 ` Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 03/14] powerpc/irq: Add mechanism to force a replay of interrupts Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 04/14] powerpc/xics: Add ICP OPAL backend Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 05/14] powerpc/powernv: Discover IODA3 PHBs Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 06/14] powerpc/pseries/pci: Remove obsolete SW invalidate Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 07/14] powerpc/opal: Add real mode call wrappers Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 08/14] powerpc/powernv/pci: Rename TCE invalidation calls Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 09/14] powerpc/powernv/pci: Remove SWINV constants and obsolete TCE code Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 10/14] powerpc/powernv/pci: Rework accessing the TCE invalidate register Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 11/14] powerpc/powernv/pci: Fallback to OPAL for TCE invalidations Benjamin Herrenschmidt
2016-07-08 8:28 ` [PATCH v2 " Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 12/14] powerpc/powernv/pci: Use the device-tree to get available range of M64's Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 13/14] powerpc/powernv/pci: Check status of a PHB before using it Benjamin Herrenschmidt
2016-07-08 6:37 ` [PATCH 14/14] powerpc/pci: Don't try to allocate resources that will be reassigned Benjamin Herrenschmidt
2016-07-12 6:52 ` [PATCH 01/14] powerpc/powernv: Add XICS emulation APIs Stewart Smith
2016-07-17 10:28 ` [01/14] " Michael Ellerman
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