[Skiboot] [PATCH v8 04/24] hdata: Define various DUMP related structures

[Vasant Hegde]

- MDDT is used by OPAL to pass destination memory details to hostboot.
- MDRT is used by hostboot to pass post dump result table to OPAL.
- Processor dump area is used to capture architected register data.

Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>
---
 hdata/spira.c       |  1 +
 hdata/spira.h       |  5 ++--
 include/opal-dump.h | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 71 insertions(+), 2 deletions(-)

diff --git a/hdata/spira.c b/hdata/spira.c
index d903ac83b..6fbe8cd05 100644
--- a/hdata/spira.c
+++ b/hdata/spira.c
@@ -1571,6 +1571,7 @@ static void fixup_spira(void)
 	spira.ntuples.mdump_src = spirah.ntuples.mdump_src;
 	spira.ntuples.mdump_dst = spirah.ntuples.mdump_dst;
 	spira.ntuples.mdump_res  = spirah.ntuples.mdump_res;
+	spira.ntuples.proc_dump_area = spirah.ntuples.proc_dump_area;
 	spira.ntuples.pcia = spiras->ntuples.pcia;
 	spira.ntuples.proc_chip = spiras->ntuples.proc_chip;
 	spira.ntuples.hs_data = spiras->ntuples.hs_data;
diff --git a/hdata/spira.h b/hdata/spira.h
index 09de4dadd..84bbcfee0 100644
--- a/hdata/spira.h
+++ b/hdata/spira.h
@@ -1,4 +1,4 @@
-/* Copyright 2013-2017 IBM Corp.
+/* Copyright 2013-2019 IBM Corp.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -76,6 +76,7 @@ struct spira_ntuples {
 	struct spira_ntuple	hs_data;		/* 0x320 */
 	struct spira_ntuple	ipmi_sensor;		/* 0x360 */
 	struct spira_ntuple	node_stb_data;		/* 0x380 */
+	struct spira_ntuple	proc_dump_area;		/* 0x400 */
 };
 
 struct spira {
@@ -89,7 +90,7 @@ struct spira {
 	 *
 	 * According to FSP engineers, this is an okay thing to do.
 	 */
-	u8			reserved[0x80];
+	u8			reserved[0x60];
 } __packed __align(0x100);
 
 extern struct spira spira;
diff --git a/include/opal-dump.h b/include/opal-dump.h
index b75e3a2cb..ccf49f953 100644
--- a/include/opal-dump.h
+++ b/include/opal-dump.h
@@ -53,4 +53,71 @@ struct mdst_table {
 	__be32	size;
 } __packed;
 
+/* Memory dump destination table (MDDT) */
+struct mddt_table {
+	__be64	addr;
+	uint8_t	data_region;
+	uint8_t dump_type;
+	__be16	reserved;
+	__be32	size;
+} __packed;
+
+/*
+ * Memory dump result table (MDRT)
+ *
+ * List of the memory ranges that have been included in the dump. This table is
+ * filled by hostboot and passed to OPAL on second boot. OPAL/payload will use
+ * this table to extract the dump.
+ */
+struct mdrt_table {
+	__be64	src_addr;
+	__be64	dest_addr;
+	uint8_t	data_region;
+	uint8_t dump_type;
+	__be16	reserved;
+	__be32	size;
+	__be64	padding;
+} __packed;
+
+/*
+ * Processor Dump Area
+ *
+ * This contains the information needed for having processor
+ * state captured during a platform dump.
+ */
+struct proc_dump_area {
+	__be32	thread_size;	/* Size of each thread register entry */
+#define PROC_DUMP_AREA_FORMAT_P9	0x1	/* P9 format */
+	uint8_t	version;	/* P9 - 0x1 */
+	uint8_t	reserved[11];
+	__be64	alloc_addr;	/* Destination memory to place register data */
+	__be32	reserved2;
+	__be32	alloc_size;	/* Allocated size */
+	__be64	dest_addr;	/* Destination address */
+	__be32	reserved3;
+	__be32	act_size;	/* Actual data size */
+} __packed;
+
+struct proc_reg_data_hdr {
+	/* PIR value of the thread */
+	__be32	pir;
+	/* 0x00 - 0x0F - The corresponding stop state of the core */
+	uint8_t	core_state;
+	uint8_t	reserved[3];
+
+	uint32_t offset;	/* Offset to Register Entries array */
+	uint32_t ecnt;		/* Number of entries */
+	uint32_t esize;		/* Alloc size of each array entry in bytes */
+	uint32_t eactsz;	/* Actual size of each array entry in bytes */
+} __packed;
+
+/* Architected register data content */
+#define ARCH_REG_TYPE_GPR	0x01
+#define ARCH_REG_TYPE_SPR	0x02
+struct proc_reg_data {
+	uint32_t reg_type;	/* ARCH_REG_TYPE_* */
+	uint32_t reg_num;
+	uint64_t reg_val;
+} __packed;
+
 #endif	/* __OPAL_DUMP_H */
-- 
2.14.3