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Commit 366d395c authored by Nathan Fontenot's avatar Nathan Fontenot Committed by Benjamin Herrenschmidt
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powerpc/pseries: Define rtas hotplug event sections 



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: default avatarNathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 9eccca08

arch/powerpc/include/asm/rtas.h

+26 −0
Original line number Diff line number Diff line
@@ -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);