In order to handle device hotplug in the kernel on pseries hotplug
notifications will be communicated to the kernel in the form of a
rtas hotplug events. This patch adds the definition of rtas hotplug event
sections.
Signed-off-by: Nathan Fontenot <nf...@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/rtas.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h
index b390f55..77e112e 100644
--- a/arch/powerpc/include/asm/rtas.h
+++ b/arch/powerpc/include/asm/rtas.h
@@ -273,6 +273,7 @@ inline uint32_t rtas_ext_event_company_id(struct
rtas_ext_event_log_v6 *ext_log)
#define PSERIES_ELOG_SECT_ID_MANUFACT_INFO (('M' << 8) | 'I')
#define PSERIES_ELOG_SECT_ID_CALL_HOME (('C' << 8) | 'H')
#define PSERIES_ELOG_SECT_ID_USER_DEF (('U' << 8) | 'D')
+#define PSERIES_ELOG_SECT_ID_HOTPLUG (('H' << 8) | 'P')
/* Vendor specific Platform Event Log Format, Version 6, section header */
struct pseries_errorlog {
@@ -296,6 +297,31 @@ inline uint16_t pseries_errorlog_length(struct
pseries_errorlog *sect)
return be16_to_cpu(sect->length);
}
+/* RTAS pseries hotplug errorlog section */
+struct pseries_hp_errorlog {
+ u8 resource;
+ u8 action;
+ u8 id_type;
+ u8 reserved;
+ union {
+ __be32 drc_index;
+ __be32 drc_count;
+ char drc_name[1];
+ } _drc_u;
+};
+
+#define PSERIES_HP_ELOG_RESOURCE_CPU 1
+#define PSERIES_HP_ELOG_RESOURCE_MEM 2
+#define PSERIES_HP_ELOG_RESOURCE_SLOT 3
+#define PSERIES_HP_ELOG_RESOURCE_PHB 4
+
+#define PSERIES_HP_ELOG_ACTION_ADD 1
+#define PSERIES_HP_ELOG_ACTION_REMOVE 2
+
+#define PSERIES_HP_ELOG_ID_DRC_NAME 1
+#define PSERIES_HP_ELOG_ID_DRC_INDEX 2
+#define PSERIES_HP_ELOG_ID_DRC_COUNT 3
+
struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
uint16_t section_id);
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