diff options
| 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/include/asm/opal.h | |
| parent | aca79d2b6ec2c0b955b22abb71c6dab90fa1d4d5 (diff) | |
| download | op-kernel-dev-97eb001f03494758a938300908b88929163650ce.zip op-kernel-dev-97eb001f03494758a938300908b88929163650ce.tar.gz | |
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/include/asm/opal.h')
| -rw-r--r-- | arch/powerpc/include/asm/opal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 40157e2..c71c72e 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -154,6 +154,7 @@ extern int opal_enter_rtas(struct rtas_args *args, #define OPAL_FLASH_VALIDATE 76 #define OPAL_FLASH_MANAGE 77 #define OPAL_FLASH_UPDATE 78 +#define OPAL_RESYNC_TIMEBASE 79 #define OPAL_GET_MSG 85 #define OPAL_CHECK_ASYNC_COMPLETION 86 #define OPAL_SYNC_HOST_REBOOT 87 @@ -865,6 +866,7 @@ extern void opal_flash_init(void); extern int opal_machine_check(struct pt_regs *regs); extern void opal_shutdown(void); +extern int opal_resync_timebase(void); extern void opal_lpc_init(void); |
