Signed-off-by: Hari Bathini <hbath...@linux.ibm.com>
---
arch/powerpc/include/asm/opal-api.h | 50 +++++++++++++++++++++++++++-
arch/powerpc/include/asm/opal.h | 6 +++
arch/powerpc/platforms/powernv/opal-call.c | 3 ++
3 files changed, 58 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/opal-api.h
b/arch/powerpc/include/asm/opal-api.h
index 383242e..c8a5665 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -208,7 +208,10 @@
#define OPAL_HANDLE_HMI2 166
#define OPAL_NX_COPROC_INIT 167
#define OPAL_XIVE_GET_VP_STATE 170
-#define OPAL_LAST 170
+#define OPAL_MPIPL_UPDATE 173
+#define OPAL_MPIPL_REGISTER_TAG 174
+#define OPAL_MPIPL_QUERY_TAG 175
+#define OPAL_LAST 175
#define QUIESCE_HOLD 1 /* Spin all calls at entry */
#define QUIESCE_REJECT 2 /* Fail all calls with OPAL_BUSY */
@@ -980,6 +983,50 @@ struct opal_sg_list {
};
/*
+ * Firmware-Assisted Dump (FADump) using MPIPL
+ */
+
+/* MPIPL update operations */
+enum opal_mpipl_ops {
+ OPAL_MPIPL_ADD_RANGE = 0,
+ OPAL_MPIPL_REMOVE_RANGE = 1,
+ OPAL_MPIPL_REMOVE_ALL = 2,
+ OPAL_MPIPL_FREE_PRESERVED_MEMORY = 3,
+};
+
+/*
+ * Each tag maps to a metadata type. Use these tags to register/query
+ * corresponding metadata address with/from OPAL.
+ */
+enum opal_mpipl_tags {
+ OPAL_MPIPL_TAG_CPU = 0,
+ OPAL_MPIPL_TAG_OPAL = 1,
+ OPAL_MPIPL_TAG_KERNEL = 2,
+ OPAL_MPIPL_TAG_BOOT_MEM = 3,
+};
+
+/* Preserved memory details */
+struct opal_mpipl_region {
+ __be64 src;
+ __be64 dest;
+ __be64 size;
+};
+
+/* FADump structure format version */
+#define MPIPL_FADUMP_VERSION 0x01
+
+/* Metadata provided by OPAL. */
+struct opal_mpipl_fadump {
+ u8 version;
+ u8 reserved[7];
+ __be32 crashing_pir;
+ __be32 cpu_data_version;
+ __be32 cpu_data_size;
+ __be32 region_cnt;
+ struct opal_mpipl_region region[];
+} __attribute__((packed));
+
+/*
* Dump region ID range usable by the OS
*/
#define OPAL_DUMP_REGION_HOST_START 0x80
@@ -1059,6 +1106,7 @@ enum {
OPAL_REBOOT_NORMAL = 0,
OPAL_REBOOT_PLATFORM_ERROR = 1,
OPAL_REBOOT_FULL_IPL = 2,
+ OPAL_REBOOT_MPIPL = 3,
};
/* Argument to OPAL_PCI_TCE_KILL */
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 57bd029..878110a 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -39,6 +39,12 @@ int64_t opal_npu_spa_clear_cache(uint64_t phb_id, uint32_t
bdfn,
uint64_t PE_handle);
int64_t opal_npu_tl_set(uint64_t phb_id, uint32_t bdfn, long cap,
uint64_t rate_phys, uint32_t size);
+
+int64_t opal_mpipl_update(enum opal_mpipl_ops op, u64 src,
+ u64 dest, u64 size);
+int64_t opal_mpipl_register_tag(enum opal_mpipl_tags tag, uint64_t addr);
+int64_t opal_mpipl_query_tag(enum opal_mpipl_tags tag, uint64_t *addr);
+
int64_t opal_console_write(int64_t term_number, __be64 *length,
const uint8_t *buffer);
int64_t opal_console_read(int64_t term_number, __be64 *length,
diff --git a/arch/powerpc/platforms/powernv/opal-call.c
b/arch/powerpc/platforms/powernv/opal-call.c
index 29ca523..fc8cc7c 100644
--- a/arch/powerpc/platforms/powernv/opal-call.c
+++ b/arch/powerpc/platforms/powernv/opal-call.c
@@ -287,3 +287,6 @@ OPAL_CALL(opal_pci_set_pbcq_tunnel_bar,
OPAL_PCI_SET_PBCQ_TUNNEL_BAR);
OPAL_CALL(opal_sensor_read_u64, OPAL_SENSOR_READ_U64);
OPAL_CALL(opal_sensor_group_enable, OPAL_SENSOR_GROUP_ENABLE);
OPAL_CALL(opal_nx_coproc_init, OPAL_NX_COPROC_INIT);
+OPAL_CALL(opal_mpipl_update, OPAL_MPIPL_UPDATE);
+OPAL_CALL(opal_mpipl_register_tag, OPAL_MPIPL_REGISTER_TAG);
+OPAL_CALL(opal_mpipl_query_tag, OPAL_MPIPL_QUERY_TAG);
