summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorMichael Neuling <mikey@neuling.org>2014-08-19 14:47:59 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2014-09-25 23:14:35 +1000
commitbffe6bda342578deea0b74f2d9cb97cc40585a1b (patch)
treea30ed9f3dd4859f654a40550fa3d3da8c0fc0601
parent3484a31fce22348b9034024cf9368ab2dbbfd0ab (diff)
downloadlinux-bffe6bda342578deea0b74f2d9cb97cc40585a1b.tar.bz2
powerpc/powernv: Add OPAL check token call
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>
-rw-r--r--arch/powerpc/include/asm/opal.h2
-rw-r--r--arch/powerpc/platforms/powernv/opal-wrappers.S1
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 86055e598269..7127b87a548d 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
@@ -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);
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 2e6ce1b8dc8f..571885556dfc 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);