We need to ensure that state is pushed out from the L2 cache when suspending so that the resume paths can access their data before the MMU and caches have been re-initialized. Add the necessary calls to __cpu_suspend_save(). Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> --- arch/arm/kernel/suspend.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/arm/kernel/suspend.c b/arch/arm/kernel/suspend.c index c78a88f..4c95410 100644 --- a/arch/arm/kernel/suspend.c +++ b/arch/arm/kernel/suspend.c @@ -28,6 +28,9 @@ void __cpu_suspend_save(u32 *ptr, u32 ptrsz, u32 sp, u32 *save_ptr) cpu_do_suspend(ptr); flush_cache_all(); + outer_clean_range(*save_ptr, *save_ptr + ptrsz); + outer_clean_range(virt_to_phys(save_ptr), + virt_to_phys(save_ptr) + sizeof(*save_ptr)); } /* -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
