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linux-stable/arch/powerpc
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Nicholas Piggin 2a06bf3e95 powerpc/64: context tracking remove _TIF_NOHZ 
Add context tracking to the system call handler explicitly, and remove
_TIF_NOHZ.

This improves system call performance when nohz_full is enabled. On a
POWER9, gettid scv system call cost on a nohz_full CPU improves from
1129 cycles to 1004 cycles and on a housekeeping CPU from 550 cycles
to 430 cycles.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-31-npiggin@gmail.com
2021-02-09 00:02:12 +11:00
..
boot
powerpc/boot: Fix build of dts/fsl
2020-12-21 22:06:09 +11:00
configs
powerpc updates for 5.11
2020-12-17 13:34:25 -08:00
crypto
crypto: powerpc/sha256-spe - Fix sparse endianness warning
2020-11-27 17:13:41 +11:00
include
powerpc/64: context tracking remove _TIF_NOHZ
2021-02-09 00:02:12 +11:00
kernel
powerpc/64: context tracking remove _TIF_NOHZ
2021-02-09 00:02:12 +11:00
kexec
arch, drivers: replace for_each_membock() with for_each_mem_range()
2020-10-13 18:38:35 -07:00
kvm
powerpc: convert interrupt handlers to use wrappers
2021-02-09 00:02:12 +11:00
lib
powerpc/sstep: Fix incorrect return from analyze_instr()
2021-01-30 11:40:04 +11:00
math-emu
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
mm
powerpc: add interrupt_cond_local_irq_enable helper
2021-02-09 00:02:12 +11:00
net
bpf, powerpc: Fix misuse of fallthrough in bpf_jit_comp()
2020-09-29 16:39:11 +02:00
oprofile
powerpc/oprofile: fix spelling mistake "contex" -> "context"
2020-08-25 01:31:33 +10:00
perf
powerpc/perf: move perf irq/nmi handling details into traps.c
2021-02-09 00:02:10 +11:00
platforms
powerpc: convert interrupt handlers to use wrappers
2021-02-09 00:02:12 +11:00
purgatory
powerpc/kexec_file: Enable early kernel OPAL calls
2020-07-29 23:47:55 +10:00
sysdev
powerpc/xive: Improve error reporting of OPAL calls
2020-12-11 09:53:11 +11:00
tools
powerpc/tools: Remove 90 line limit in checkpatch script
2020-09-08 22:57:11 +10:00
xmon
powerpc/xmon: Enable breakpoints on 8xx
2021-01-31 22:35:51 +11:00
Kbuild
powerpc/kexec: Move kexec files into a dedicated subdir.
2019-11-21 15:41:34 +11:00
Kconfig
powerpc/64: context tracking remove _TIF_NOHZ
2021-02-09 00:02:12 +11:00
Kconfig.debug
powerpc/xmon: Select CONSOLE_POLL for the 8xx
2021-01-31 22:35:51 +11:00
Makefile
powerpc updates for 5.11
2020-12-17 13:34:25 -08:00
Makefile.postlink
powerpc: unrel_branch_check.sh: use nm to find symbol value
2020-09-02 11:00:22 +10:00