Commit 7aef3766 authored Feb 04, 2019 by Christophe Leroy Committed by Michael Ellerman Feb 23, 2019

powerpc/idle/6xx: Use r1 with CURRENT_THREAD_INFO()



Make sure CURRENT_THREAD_INFO() is used with r1 which is the virtual
address of the stack, in order to ease the switch to r2 when we enable
THREAD_INFO_IN_TASK, as we have no register having the phys address of
current.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Split out of larger patch]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent b72cc2e7

arch/powerpc/kernel/idle_6xx.S

+2 −1

Original line number	Diff line number	Diff line
		@@ -159,7 +159,8 @@ _GLOBAL(power_save_ppc32_restore)
		stw r9,_NIP(r11) /* make it do a blr */

		#ifdef CONFIG_SMP
		CURRENT_THREAD_INFO(r12, r11)
		CURRENT_THREAD_INFO(r12, r1)
		tophys(r12, r12)
		lwz r11,TI_CPU(r12) /* get cpu number * 4 */
		slwi r11,r11,2
		#else

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