Commit be401b37 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt
Browse files

powerpc/powernv: Fix OPAL entry and exit in little endian mode 



Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 4f89363b

arch/powerpc/platforms/powernv/opal-wrappers.S

+8 −1
Original line number Diff line number Diff line
@@ -34,7 +34,7 @@ 
	mtmsrd	r12,1;			\

	LOAD_REG_ADDR(r0,.opal_return);	\

	mtlr	r0;			\

	li	r0,MSR_DR|MSR_IR;	\

	li	r0,MSR_DR|MSR_IR|MSR_LE;\

	andc	r12,r12,r0;		\

	li	r0,token;		\

	mtspr	SPRN_HSRR1,r12;		\
@@ -45,6 +45,13 @@ 
	hrfid



_STATIC(opal_return)

	/*

	 * Fixup endian on OPAL return... we should be able to simplify

	 * this by instead converting the below trampoline to a set of

	 * bytes (always BE) since MSR:LE will end up fixed up as a side

	 * effect of the rfid.

	 */

	FIXUP_ENDIAN

	ld	r2,PACATOC(r13);

	ld	r4,8(r1);

	ld	r5,16(r1);