Commit e550592e authored Sep 19, 2011 by Benjamin Herrenschmidt

powerpc/powernv: Don't clobber r9 in relative_toc()



With OPAL, r8 and r9 will be used to pass the OPAL base and entry
for debugging purposes (those informations are also in the
device-tree). We don't want to clobber those registers that
early.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

parent 781fb7a3

arch/powerpc/kernel/head_64.S

+3 −3

Original line number	Diff line number	Diff line
		@@ -674,9 +674,9 @@ _GLOBAL(enable_64b_mode)
		_GLOBAL(relative_toc)
		mflr r0
		bcl 20,31,$+4
		0: mflr r9
		ld r2,(p_toc - 0b)(r9)
		add r2,r2,r9
		0: mflr r11
		ld r2,(p_toc - 0b)(r11)
		add r2,r2,r11
		mtlr r0
		blr