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| author | Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> | 2014-02-26 05:38:43 +0530 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-03-05 15:56:54 +1100 |
| commit | 97eb001f03494758a938300908b88929163650ce (patch) | |
| tree | a266f44413ae0418c95436e505b7441d041e328e /arch/powerpc/platforms | |
| parent | aca79d2b6ec2c0b955b22abb71c6dab90fa1d4d5 (diff) | |
| download | linux-97eb001f03494758a938300908b88929163650ce.tar.bz2 | |
powerpc/powernv: Add OPAL call to resync timebase on wakeup
During "Fast-sleep" and deeper power savings state, decrementer and
timebase could be stopped making it out of sync with rest
of the cores in the system.
Add a firmware call to request platform to resync timebase
using low level platform methods.
Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Preeti U. Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-wrappers.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index 3e8829c40fbb..aab54b60334f 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -126,6 +126,7 @@ OPAL_CALL(opal_return_cpu, OPAL_RETURN_CPU); 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_get_msg, OPAL_GET_MSG); OPAL_CALL(opal_check_completion, OPAL_CHECK_ASYNC_COMPLETION); OPAL_CALL(opal_sync_host_reboot, OPAL_SYNC_HOST_REBOOT); |