Nicholas Piggin d83f4bc0a4 powerpc/perf: Fix disabling BHRB and instruction sampling ...

commit ea142e590aec55ba40c5affb4d49e68c713c63dc upstream.

When the PMU is disabled, MMCRA is not updated to disable BHRB and
instruction sampling. This can lead to those features remaining enabled,
which can slow down a real or emulated CPU.

Fixes: 1cade527f6 ("powerpc/perf: BHRB control to disable BHRB logic when not used")
Cc: stable@vger.kernel.org # v5.9+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231018153423.298373-1-npiggin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-11-28 16:54:55 +00:00

..

boot

powerpc: dts: t1040rdb: fix compatible string for Rev A boards

2023-03-17 08:45:10 +01:00

configs

Remove DECnet support from kernel

2023-06-21 15:45:38 +02:00

crypto

crypto: powerpc/crc-vpmsum_test - Fix sparse endianness warning

2020-09-04 17:57:15 +10:00

include

powerpc/40x: Remove stale PTE_ATOMIC_UPDATES macro

2023-11-20 11:06:53 +01:00

kernel

powerpc/mm: Fix boot crash with FLATMEM

2023-11-08 17:30:49 +01:00

kexec

powerpc: Set crashkernel offset to mid of RMA region

2022-04-13 21:00:56 +02:00

kvm

powerpc: Don't include lppaca.h in paca.h

2023-09-19 12:20:15 +02:00

lib

powerpc/lib/sstep: Fix build errors with newer binutils

2022-04-08 14:40:36 +02:00

math-emu

powerpc/math_emu/efp: Include module.h

2022-10-26 13:25:40 +02:00

mm

powerpc/mm: Fix boot crash with FLATMEM

2023-11-08 17:30:49 +01:00

net

powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06

2022-02-01 17:25:45 +01:00

oprofile

powerpc/oprofile: fix spelling mistake "contex" -> "context"

2020-08-25 01:31:33 +10:00

perf

powerpc/perf: Fix disabling BHRB and instruction sampling

2023-11-28 16:54:55 +00:00

platforms

powerpc/pseries: fix potential memory leak in init_cpu_associativity()

2023-11-20 11:06:54 +01:00

purgatory

powerpc/purgatory: remove PGO flags

2023-06-21 15:45:37 +02:00

sysdev

powerpc/xive: Fix endian conversion size

2023-11-20 11:06:53 +01:00

tools

powerpc/tools: Remove 90 line limit in checkpatch script

2020-09-08 22:57:11 +10:00

xmon

powerpc: Don't include lppaca.h in paca.h

2023-09-19 12:20:15 +02:00

Kbuild

powerpc/kexec: Move kexec files into a dedicated subdir.

2019-11-21 15:41:34 +11:00

Kconfig

powerpc/kasan: Force thread size increase with KASAN

2022-06-14 18:32:39 +02:00

Kconfig.debug

powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y

2023-07-27 08:44:09 +02:00

Makefile

powerpc: Fail build if using recordmcount with binutils v2.37

2023-07-27 08:44:26 +02:00

Makefile.postlink

powerpc: unrel_branch_check.sh: use nm to find symbol value

2020-09-02 11:00:22 +10:00