[Skiboot] [PATCH v3 14/18] fadump: Introduce new reboot type

[Vasant Hegde]

Enhance reboot2 call to support FADUMP. Payload will call this interface
to initiate fadump.

Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>
---
 core/platform.c                        | 4 ++++
 doc/opal-api/opal-cec-reboot-6-116.rst | 7 +++++++
 include/opal-api.h                     | 1 +
 3 files changed, 12 insertions(+)

diff --git a/core/platform.c b/core/platform.c
index f09ea3c13..0ea7fa1a5 100644
--- a/core/platform.c
+++ b/core/platform.c
@@ -101,6 +101,10 @@ static int64_t opal_cec_reboot2(uint32_t reboot_type, char *diag)
 	case OPAL_REBOOT_FULL_IPL:
 		disable_fast_reboot("full IPL reboot requested");
 		return opal_cec_reboot();
+	case OPAL_REBOOT_MPIPL:
+		prlog(PR_ERR, "Kernel requested for fadump\n");
+		assert(false);
+		break;
 	default:
 		prlog(PR_NOTICE, "OPAL: Unsupported reboot request %d\n", reboot_type);
 		return OPAL_UNSUPPORTED;
diff --git a/doc/opal-api/opal-cec-reboot-6-116.rst b/doc/opal-api/opal-cec-reboot-6-116.rst
index 516d4fc01..11cf54aa1 100644
--- a/doc/opal-api/opal-cec-reboot-6-116.rst
+++ b/doc/opal-api/opal-cec-reboot-6-116.rst
@@ -63,6 +63,13 @@ OPAL_REBOOT_FULL_IPL = 2
 	On platforms that don't support fast reboot, this is equivalent to a
 	normal reboot.
 
+OPAL_REBOOT_MPIPL = 3
+	Request for fadump reboot. Firmware will reboot the system and collect
+	dump.
+
+	On platforms that don't support fadump, this is equivalent to a
+	normal assert.
+
 Unsupported Reboot type
 	For unsupported reboot type, this function will return with
 	OPAL_UNSUPPORTED and no reboot will be triggered.
diff --git a/include/opal-api.h b/include/opal-api.h
index 58c826e34..250549566 100644
--- a/include/opal-api.h
+++ b/include/opal-api.h
@@ -1232,6 +1232,7 @@ enum {
 	OPAL_REBOOT_NORMAL = 0,
 	OPAL_REBOOT_PLATFORM_ERROR,
 	OPAL_REBOOT_FULL_IPL,
+	OPAL_REBOOT_MPIPL,
 };
 
 /* Argument to OPAL_PCI_TCE_KILL */
-- 
2.14.3