Christophe Leroy dae64e957c powerpc/32s: fix suspend/resume when IBATs 4-7 are used ...

commit 6ecb78ef56 upstream.

Previously, only IBAT1 and IBAT2 were used to map kernel linear mem.
Since commit 63b2bc6195 ("powerpc/mm/32s: Use BATs for
STRICT_KERNEL_RWX"), we may have all 8 BATs used for mapping
kernel text. But the suspend/restore functions only save/restore
BATs 0 to 3, and clears BATs 4 to 7.

Make suspend and restore functions respectively save and reload
the 8 BATs on CPUs having MMU_FTR_USE_HIGH_BATS feature.

Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Cc: stable@vger.kernel.org
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-08-04 09:33:31 +02:00

..

8xx

powerpc: Remove all usages of NO_IRQ

2016-09-20 20:57:12 +10:00

40x

Merge tag 'powerpc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2016-07-30 21:01:36 -07:00

44x

powerpc: Remove all usages of NO_IRQ

2016-09-20 20:57:12 +10:00

52xx

powerpc: Remove all usages of NO_IRQ

2016-09-20 20:57:12 +10:00

82xx

powerpc/e8248e: Select PHYLIB only if NETDEVICES is enabled

2016-09-24 23:59:47 -05:00

83xx

powerpc/83xx: Also save/restore SPRG4-7 during suspend

2019-03-23 13:19:51 +01:00

85xx

powerpc: Convert fsl_rstcr_restart to a reset handler

2016-09-25 02:38:50 -05:00

86xx

powerpc: Convert fsl_rstcr_restart to a reset handler

2016-09-25 02:38:50 -05:00

512x

powerpc: Remove all usages of NO_IRQ

2016-09-20 20:57:12 +10:00

amigaone

powerpc: Move 32-bit probe() machine to later in the boot process

2016-07-21 19:06:42 +10:00

cell

powerpc/spufs: Fix coredump of SPU contexts

2018-04-13 19:48:16 +02:00

chrp

powerpc/chrp/time: Make some functions static, add missing header include

2018-08-03 07:55:18 +02:00

embedded6xx

powerpc/wii: properly disable use of BATs when requested.

2019-03-23 13:19:51 +01:00

maple

powerpc: Remove all usages of NO_IRQ

2016-09-20 20:57:12 +10:00

pasemi

powerpc: Remove all usages of NO_IRQ

2016-09-20 20:57:12 +10:00

powermac

powerpc/32s: fix suspend/resume when IBATs 4-7 are used

2019-08-04 09:33:31 +02:00

powernv

powerpc/powernv: Query firmware for count cache flush settings

2019-04-17 08:36:42 +02:00

ps3

powerpc/64: Simplify adaptation to new ISA v3.00 HPTE format

2017-01-19 20:18:06 +01:00

pseries

powerpc/pseries: Query hypervisor for count cache flush settings

2019-04-17 08:36:42 +02:00

fsl_uli1575.c

of/irq: Refactor interrupt-map parsing

2013-10-24 11:43:04 +01:00

Kconfig

Merge tag 'rtc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

2016-08-05 09:48:22 -04:00

Kconfig.cputype

powerpc: Set default CPU type to POWER8 for little endian builds

2016-10-04 16:15:00 +11:00

Makefile

powerpc: Remove platforms/wsp and associated pieces

2014-06-11 16:35:38 +10:00