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powerpc/pseries: Define rtas hotplug event sections

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In order to handle device hotplug in the kernel on pseries the hotplug
request will be communicated in the kernel in the form of a
rtas hotplug event. This patch adds the definition of rtas hotplug event
sections.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Nathan Fontenot 2015-02-10 13:43:24 -06:00 committed by Benjamin Herrenschmidt
parent 9eccca0843
commit 366d395c8d
1 changed files with 26 additions and 0 deletions
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26
arch/powerpc/include/asm/rtas.h
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@ -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);