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101dd590a7
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Nicholas Piggin 101dd590a7 powerpc/perf: Avoid spurious PMU interrupts after idle 
POWER9 DD2 can see spurious PMU interrupts after state-loss idle in
some conditions.

A solution is to save and reload MMCR0 over state-loss idle.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Tested-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-07-18 11:45:47 +10:00
..
alpha Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-06 22:07:44 -07:00
arc Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-07-03 16:14:51 -07:00
arm pci-v4.13-changes 2017-07-08 15:51:57 -07:00
arm64 pci-v4.13-changes 2017-07-08 15:51:57 -07:00
blackfin - Core Frameworks 2017-07-07 13:38:26 -07:00
c6x This is the first pull request for the new dma-mapping subsystem 2017-07-06 19:20:54 -07:00
cris Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-06 22:07:44 -07:00
frv Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-06 22:07:44 -07:00
h8300 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-07-03 16:14:51 -07:00
hexagon Merge branch 'akpm' (patches from Andrew) 2017-07-06 22:27:08 -07:00
ia64 Kbuild thin archives updates for v4.13 2017-07-07 15:11:12 -07:00
m32r Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-06 22:07:44 -07:00
m68k Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-06 22:07:44 -07:00
metag Merge branch 'akpm' (patches from Andrew) 2017-07-06 22:27:08 -07:00
microblaze Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-06 22:07:44 -07:00
mips pci-v4.13-changes 2017-07-08 15:51:57 -07:00
mn10300 Merge branch 'akpm' (patches from Andrew) 2017-07-06 22:27:08 -07:00
nios2 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-07-03 16:14:51 -07:00
openrisc OpenRISC fixes for 4.13 2017-07-07 13:58:49 -07:00
parisc Merge branch 'akpm' (patches from Andrew) 2017-07-06 22:27:08 -07:00
powerpc powerpc/perf: Avoid spurious PMU interrupts after idle 2017-07-18 11:45:47 +10:00
s390 Merge branch 'akpm' (patches from Andrew) 2017-07-06 22:27:08 -07:00
score Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-06 22:07:44 -07:00
sh Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2017-07-08 12:39:37 -07:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next 2017-07-08 12:14:14 -07:00
tile Kbuild thin archives updates for v4.13 2017-07-07 15:11:12 -07:00
um Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-06 22:07:44 -07:00
unicore32 signal: Remove non-uapi <asm/siginfo.h> 2017-06-04 15:11:47 +02:00
x86 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-07-09 11:21:31 -07:00
xtensa Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-06 22:07:44 -07:00
.gitignore
Kconfig Kbuild thin archives updates for v4.13 2017-07-07 15:11:12 -07:00