[PATCH 1/4] powerpc/powernv: Add OPAL check token call
From: Michael Neuling <hidden>
Date: 2014-08-19 04:48:04
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
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 <redacted> --- arch/powerpc/include/asm/opal.h | 7 +++++++ arch/powerpc/platforms/powernv/opal-wrappers.S | 1 + 2 files changed, 8 insertions(+)
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 86055e5..4593a93 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h@@ -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
@@ -417,6 +418,11 @@ struct opal_msg { __be64 params[8]; }; +enum OpalCheckTokenStatus { + OPAL_TOKEN_ABSENT = 0, + OPAL_TOKEN_PRESENT = 1 +}; + struct opal_machine_check_event { enum OpalMCE_Version version:8; /* 0x00 */ uint8_t in_use; /* 0x01 */
@@ -887,6 +893,7 @@ 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);
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 2e6ce1b..5718855 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S@@ -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);
--
1.9.1