diff options
Diffstat (limited to 'arch/powerpc/include/asm/dbell.h')
| -rw-r--r-- | arch/powerpc/include/asm/dbell.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/dbell.h b/arch/powerpc/include/asm/dbell.h index 040944659a20..f70cbfe0ec04 100644 --- a/arch/powerpc/include/asm/dbell.h +++ b/arch/powerpc/include/asm/dbell.h @@ -51,6 +51,9 @@ static inline void ppc_msgsnd_sync(void) /* sync after taking message interrupt */ static inline void ppc_msgsync(void) { + /* sync is not required when taking messages from the same core */ + __asm__ __volatile__ (ASM_FTR_IFSET(PPC_MSGSYNC " ; lwsync", "", %0) + : : "i" (CPU_FTR_HVMODE|CPU_FTR_ARCH_300)); } #else /* CONFIG_PPC_BOOK3S */ |