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Christophe Leroy 76249ddc27 powerpc/32: On syscall entry, enable instruction translation at the same time as data 
On 40x and 8xx, kernel text is pinned.
On book3s/32, kernel text is mapped by BATs.

Enable instruction translation at the same time as data translation, it
makes things simpler.

MSR_RI can also be set at the same time because srr0/srr1 are already
saved and r1 is set properly.

On booke, translation is always on, so at the end all PPC32
have translation on early.

This reduces null_syscall benchmark by 13 cycles on 8xx
(296 ==> 283 cycles).

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3fe8891c814103a3549efc1d4e7ffc828bba5993.1612796617.git.christophe.leroy@csgroup.eu
2021-02-11 23:35:08 +11:00
..
alpha local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
arc local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
arm local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
arm64 local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
c6x tif-task_work.arch-2020-12-14 2020-12-16 12:33:35 -08:00
csky local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
h8300 local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
hexagon local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
ia64 local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
m68k local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
microblaze local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
mips local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
nds32 local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
nios2 tif-task_work.arch-2020-12-14 2020-12-16 12:33:35 -08:00
openrisc local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
parisc local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
powerpc powerpc/32: On syscall entry, enable instruction translation at the same time as data 2021-02-11 23:35:08 +11:00
riscv local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
s390 - Update defconfigs and sort config select list. 2021-01-02 12:22:46 -08:00
sh local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
sparc local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
um This pull request contains the following changes for UML: 2020-12-17 17:56:44 -08:00
x86 local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
xtensa local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
.gitignore
Kconfig kasan: allow VMAP_STACK for HW_TAGS mode 2020-12-22 12:55:08 -08:00