[Skiboot] [PATCH v2 07/17] hdata: Add support for early OPAL crash
Vasant Hegde
hegdevasant at linux.vnet.ibm.com
Fri May 4 20:28:07 AEST 2018
Lets hardcode few entries in MDST and MDDT table.. so that we can capture
early OPAL crash. Note that we will have 1 to 1 mapping between MDST and
MDDT table entry.
Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>
---
hdata/spira.c | 54 ++++++++++++++++++++++++++++++++++++++++++++----
hdata/test/hdata_to_dt.c | 1 +
include/opal-dump.h | 1 +
3 files changed, 52 insertions(+), 4 deletions(-)
diff --git a/hdata/spira.c b/hdata/spira.c
index 421396903..4e3e2928a 100644
--- a/hdata/spira.c
+++ b/hdata/spira.c
@@ -89,7 +89,7 @@ __section(".cpuctrl.data") struct cpu_ctl_init_data cpu_ctl_init_data = {
* addresses, we set the top bit to 1 on physical addresses
*/
-__section(".mdst.data") struct mdst_table init_mdst_table[2] = {
+__section(".mdst.data") struct mdst_table init_mdst_table[3] = {
{
.addr = CPU_TO_BE64(INMEM_CON_START | HRMOR_BIT),
.data_region = DUMP_REGION_CONSOLE,
@@ -102,6 +102,30 @@ __section(".mdst.data") struct mdst_table init_mdst_table[2] = {
.dump_type = DUMP_TYPE_SYSDUMP,
.size = CPU_TO_BE32(HBRT_CON_LEN),
},
+ {
+ .addr = CPU_TO_BE64(SKIBOOT_BASE | HRMOR_BIT),
+ .data_region = DUMP_REGION_OPAL_MEMORY,
+ .dump_type = DUMP_TYPE_FADUMP,
+ .size = CPU_TO_BE32(FADUMP_DEST_SKIBOOT_SIZE),
+ },
+};
+
+__section(".mddt.data") struct mddt_table init_mddt_table[3] = {
+ {
+ .addr = CPU_TO_BE64(FADUMP_DEST_CON_LOG | HRMOR_BIT),
+ .data_region = DUMP_REGION_CONSOLE,
+ .size = CPU_TO_BE32(FADUMP_DEST_CON_SIZE),
+ },
+ {
+ .addr = CPU_TO_BE64(FADUMP_DEST_HBRT_LOG | HRMOR_BIT),
+ .data_region = DUMP_REGION_HBRT_LOG,
+ .size = CPU_TO_BE32(FADUMP_DEST_HBRT_SIZE),
+ },
+ {
+ .addr = CPU_TO_BE64(FADUMP_DEST_SKIBOOT_BASE | HRMOR_BIT),
+ .data_region = DUMP_REGION_OPAL_MEMORY,
+ .size = CPU_TO_BE32(FADUMP_DEST_SKIBOOT_SIZE),
+ },
};
/* SP Interface Root Array, aka SPIRA */
@@ -187,10 +211,32 @@ __section(".spirah.data") struct spirah spirah = {
#endif
.mdump_src = {
.addr = CPU_TO_BE64(MDST_TABLE_OFF),
- .alloc_cnt = CPU_TO_BE16(ARRAY_SIZE(init_mdst_table)),
+ .alloc_cnt = CPU_TO_BE16(MDST_TABLE_SIZE / sizeof(struct mdst_table)),
.act_cnt = CPU_TO_BE16(ARRAY_SIZE(init_mdst_table)),
- .alloc_len =
- CPU_TO_BE32(sizeof(init_mdst_table)),
+ .alloc_len = CPU_TO_BE32(sizeof(struct mdst_table)),
+ .act_len = CPU_TO_BE32(sizeof(struct mdst_table)),
+ },
+ .mdump_dst = {
+ .addr = CPU_TO_BE64(MDDT_TABLE_OFF),
+ .alloc_cnt = CPU_TO_BE16(MDDT_TABLE_SIZE / sizeof(struct mddt_table)),
+ .act_cnt = CPU_TO_BE16(ARRAY_SIZE(init_mddt_table)),
+ .alloc_len = CPU_TO_BE32(sizeof(struct mddt_table)),
+ .act_len = CPU_TO_BE32(sizeof(struct mddt_table)),
+ },
+ .mdump_res = {
+ .addr = CPU_TO_BE64(MDRT_TABLE_BASE),
+ .alloc_cnt =
+ CPU_TO_BE16(MDRT_TABLE_SIZE / sizeof(struct mdrt_table)),
+ /*
+ * XXX: Ideally hostboot should use allocated count and
+ * length. But looks like hostboot uses actual count
+ * and length get MDRT table size. And post dump
+ * hostboot will update actu_cnt.
+ */
+ .act_cnt =
+ CPU_TO_BE16(MDRT_TABLE_SIZE / sizeof(struct mdrt_table)),
+ .alloc_len = CPU_TO_BE32(sizeof(struct mdrt_table)),
+ .act_len = CPU_TO_BE32(sizeof(struct mdrt_table)),
},
},
};
diff --git a/hdata/test/hdata_to_dt.c b/hdata/test/hdata_to_dt.c
index 8c61b4f62..46e755a66 100644
--- a/hdata/test/hdata_to_dt.c
+++ b/hdata/test/hdata_to_dt.c
@@ -77,6 +77,7 @@ unsigned long tb_hz = 512000000;
#define PVR_P9 0x004e0200
#define SPR_PVR 0x11f /* RO: Processor version register */
+#define SPR_PIR_P9_MASK 0x7fff /* Mask of implemented bits */
#define __CPU_H
struct cpu_thread {
diff --git a/include/opal-dump.h b/include/opal-dump.h
index faa4a1639..a4b052e95 100644
--- a/include/opal-dump.h
+++ b/include/opal-dump.h
@@ -35,6 +35,7 @@
#define DUMP_REGION_CONSOLE 0x01
#define DUMP_REGION_HBRT_LOG 0x02
+#define DUMP_REGION_OPAL_MEMORY 0x03
/* Mainstore memory to be captured by FSP SYSDUMP */
#define DUMP_TYPE_SYSDUMP 0xF5
--
2.14.3
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