linux

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-16 22:39:48 +00:00

Eugeniy Paltsev c6348dd38b ARC: perf: map generic branches to correct hardware condition commit `3affbf0e15` upstream. So far we've mapped branches to "ijmp" which also counts conditional branches NOT taken. This makes us different from other architectures such as ARM which seem to be counting only taken branches. So use "ijmptak" hardware condition which only counts (all jump instructions that are taken) 'ijmptak' event is available on both ARCompact and ARCv2 ISA based cores. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Cc: stable@vger.kernel.org Signed-off-by: Vineet Gupta <vgupta@synopsys.com> [vgupta: reworked changelog] Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	History 2019-01-31 08:15:38 +01:00
..
asm	ARC: perf: map generic branches to correct hardware condition	2019-01-31 08:15:38 +01:00
uapi/asm	y2038: Remove stat64 family from default syscall set	2018-08-29 15:42:20 +02:00

Eugeniy Paltsev c6348dd38b ARC: perf: map generic branches to correct hardware condition

commit 3affbf0e15 upstream.

So far we've mapped branches to "ijmp" which also counts conditional
branches NOT taken. This makes us different from other architectures
such as ARM which seem to be counting only taken branches.

So use "ijmptak" hardware condition which only counts (all jump
instructions that are taken)

'ijmptak' event is available on both ARCompact and ARCv2 ISA based
cores.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: stable@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: reworked changelog]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

History

2019-01-31 08:15:38 +01:00

asm ARC: perf: map generic branches to correct hardware condition 2019-01-31 08:15:38 +01:00

uapi/asm y2038: Remove stat64 family from default syscall set 2018-08-29 15:42:20 +02:00