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powerpc/powernv: Add OPAL check token call

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Currently there is no way to generically check if an OPAL call exists or not
from the host kernel.

This adds an OPAL call opal_check_token() which tells you if the given token is
present in OPAL or not.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Neuling 2014-08-19 14:47:59 +10:00 committed by Michael Ellerman
parent 3484a31fce
commit bffe6bda34
2 changed files with 3 additions and 0 deletions
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2
arch/powerpc/include/asm/opal.h
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@ -135,6 +135,7 @@ struct opal_sg_list {
#define OPAL_FLASH_MANAGE 77
#define OPAL_FLASH_UPDATE 78
#define OPAL_RESYNC_TIMEBASE 79
#define OPAL_CHECK_TOKEN 80
#define OPAL_DUMP_INIT 81
#define OPAL_DUMP_INFO 82
#define OPAL_DUMP_READ 83
@ -887,6 +888,7 @@ int64_t opal_pci_next_error(uint64_t phb_id, __be64 *first_frozen_pe,
__be16 *pci_error_type, __be16 *severity);
int64_t opal_pci_poll(uint64_t phb_id);
int64_t opal_return_cpu(void);
int64_t opal_check_token(uint64_t token);
int64_t opal_reinit_cpus(uint64_t flags);
int64_t opal_xscom_read(uint32_t gcid, uint64_t pcb_addr, __be64 *val);

1
arch/powerpc/platforms/powernv/opal-wrappers.S
View file

@ -232,6 +232,7 @@ OPAL_CALL(opal_validate_flash, OPAL_FLASH_VALIDATE);
OPAL_CALL(opal_manage_flash, OPAL_FLASH_MANAGE);
OPAL_CALL(opal_update_flash, OPAL_FLASH_UPDATE);
OPAL_CALL(opal_resync_timebase, OPAL_RESYNC_TIMEBASE);
OPAL_CALL(opal_check_token, OPAL_CHECK_TOKEN);
OPAL_CALL(opal_dump_init, OPAL_DUMP_INIT);
OPAL_CALL(opal_dump_info, OPAL_DUMP_INFO);
OPAL_CALL(opal_dump_info2, OPAL_DUMP_INFO2);