From 97eb001f03494758a938300908b88929163650ce Mon Sep 17 00:00:00 2001 From: Vaidyanathan Srinivasan Date: Wed, 26 Feb 2014 05:38:43 +0530 Subject: 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 Signed-off-by: Preeti U. Murthy Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/opal.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/powerpc/include/asm/opal.h') diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 40157e2ca691..c71c72e47d47 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); -- cgit v1.2.1