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Nicholas Piggin 2771fac438 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: 1cade527f6e9 ("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 16:56:26 +00:00
..
alpha
alpha: remove __init annotation from exported page_is_ram()
2023-08-16 18:22:03 +02:00
arc
ARC: atomics: Add compiler barrier to atomic operations...
2023-09-19 12:23:00 +02:00
arm
ARM: 9320/1: fix stack depot IRQ stack filter
2023-11-28 16:56:18 +00:00
arm64
arm64: dts: ls208xa: use a pseudo-bus to constrain usb dma size
2023-11-28 16:56:17 +00:00
csky
kprobes: treewide: Cleanup the error messages for kprobes
2023-02-22 12:57:00 +01:00
h8300
h8300: Fix build errors from do_exit() to make_task_dead() transition
2023-02-01 08:27:21 +01:00
hexagon
hexagon: Fix function name in die()
2023-02-01 08:27:20 +01:00
ia64
ia64/cpu: Switch to arch_cpu_finalize_init()
2023-08-08 19:58:30 +02:00
m68k
m68k: Fix invalid .section syntax
2023-09-19 12:22:27 +02:00
microblaze
exit: Add and use make_task_dead.
2023-02-01 08:27:20 +01:00
mips
MIPS: Alchemy: only build mmc support helpers if au1xmmc is enabled
2023-10-06 13:18:12 +02:00
nds32
exit: Add and use make_task_dead.
2023-02-01 08:27:20 +01:00
nios2
nios2: dts: Fix tse_mac "max-frame-size" property
2023-06-21 15:59:14 +02:00
openrisc
openrisc: Properly store r31 to pt_regs on unhandled exceptions
2023-05-11 23:00:37 +09:00
parisc
parisc: Restore __ldcw_align for PA-RISC 2.0 processors
2023-10-10 21:59:09 +02:00
powerpc
powerpc/perf: Fix disabling BHRB and instruction sampling
2023-11-28 16:56:26 +00:00
riscv
riscv, bpf: Sign-extend return values
2023-10-19 23:05:34 +02:00
s390
s390/pci: fix iommu bitmap allocation
2023-10-25 11:59:03 +02:00
sh
sh: bios: Revive earlyprintk support
2023-11-20 11:08:23 +01:00
sparc
sparc32: fix a braino in fault handling in csum_and_copy_..._user()
2023-11-08 17:26:42 +01:00
um
um: Fix hostaudio build errors
2023-09-19 12:22:49 +02:00
x86
x86/mm: Drop the 4 MB restriction on minimal NUMA node memory size
2023-11-28 16:56:15 +00:00
xtensa
xtensa: boot/lib: fix function prototypes
2023-10-06 13:18:14 +02:00
.gitignore
…
Kconfig
init: Provide arch_cpu_finalize_init()
2023-08-08 19:58:30 +02:00