[PATCH] powerpc: Move lowlevel runlatch calls under cpu feature control
From: Olof Johansson <hidden>
Date: 2007-09-05 03:35:39
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
There's no need to call the runlatch on functions on processors that
don't implement them (CPU_FTR_CTRL).
Signed-off-by: Olof Johansson <redacted>
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 33c4e8c..cec5908 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S@@ -656,7 +656,9 @@ hardware_interrupt_common: FINISH_NAP hardware_interrupt_entry: DISABLE_INTS +BEGIN_FTR_SECTION bl .ppc64_runlatch_on +END_FTR_SECTION_IFSET(CPU_FTR_CTRL) addi r3,r1,STACK_FRAME_OVERHEAD bl .do_IRQ b .ret_from_except_lite
diff --git a/include/asm-powerpc/exception.h b/include/asm-powerpc/exception.h
index d850c8e..39abdb0 100644
--- a/include/asm-powerpc/exception.h
+++ b/include/asm-powerpc/exception.h@@ -282,7 +282,9 @@ label##_common: \ EXCEPTION_PROLOG_COMMON(trap, PACA_EXGEN); \ FINISH_NAP; \ DISABLE_INTS; \ +BEGIN_FTR_SECTION \ bl .ppc64_runlatch_on; \ +END_FTR_SECTION_IFSET(CPU_FTR_CTRL) \ addi r3,r1,STACK_FRAME_OVERHEAD; \ bl hdlr; \ b .ret_from_except_lite