Commit ca1d3443 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc: Remove SYNC on non 6xx 



SYNC is usefull for Powerpc 601 only. On everything else,
SYNC is empty.

Remove it from code that is not made to run on 6xx.

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/27951fa6c9a8f80724d1bc81a6117ac32343a55d.1601362098.git.christophe.leroy@csgroup.eu
parent 13135b46

arch/powerpc/kernel/head_40x.S

+0 −1
Original line number Diff line number Diff line
@@ -72,7 +72,6 @@ turn_on_mmu: 
	lis	r0,start_here@h

	ori	r0,r0,start_here@l

	mtspr	SPRN_SRR0,r0

	SYNC

	rfi				/* enables MMU */

	b	.			/* prevent prefetch past rfi */

arch/powerpc/kernel/head_booke.h

+0 −1
Original line number Diff line number Diff line
@@ -176,7 +176,6 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_EMB_HV) 
#endif

	mtspr	SPRN_SRR1,r10

	mtspr	SPRN_SRR0,r11

	SYNC

	RFI				/* jump to handler, enable MMU */

99:	b	ret_from_kernel_syscall

.endm

arch/powerpc/kernel/misc_64.S

+0 −1
Original line number Diff line number Diff line
@@ -365,7 +365,6 @@ _GLOBAL(kexec_smp_wait) 


	li	r4,KEXEC_STATE_REAL_MODE

	stb	r4,PACAKEXECSTATE(r13)

	SYNC



	b	kexec_wait

CRA Git | Maintained and supported by SUSTech CRA and CCSE