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| author |   James Clark <james.clark@linaro.org> | 2025-01-06 14:24:39 +0000 |
|---|---|---|
| committer |   Marc Zyngier <maz@kernel.org> | 2025-01-12 12:50:11 +0000 |
| commit | a2b579c41fe9c295804abd167751f9fdc73c7006 (patch) | |
| tree | 8c312bc96a9af54115b25938baf5db159bbe90c3 | |
| parent | arm64/sysreg/tools: Move TRFCR definitions to sysreg (diff) | |
| download | wireguard-linux-a2b579c41fe9c295804abd167751f9fdc73c7006.tar.xz wireguard-linux-a2b579c41fe9c295804abd167751f9fdc73c7006.zip | |
coresight: trbe: Remove redundant disable call
trbe_drain_and_disable_local() just clears TRBLIMITR and drains.
TRBLIMITR is already cleared on the next line after this call, so
replace it with only drain. This is so we can make a kvm call that has a
preempt enabled warning from set_trbe_disabled() in the next commit,
where trbe_reset_local() is called from a preemptible hotplug path.
Signed-off-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250106142446.628923-5-james.clark@linaro.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-trbe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c index 919804b12a67..03d3695ba5aa 100644 --- a/drivers/hwtracing/coresight/coresight-trbe.c +++ b/drivers/hwtracing/coresight/coresight-trbe.c @@ -253,8 +253,8 @@ static void trbe_drain_and_disable_local(struct trbe_cpudata *cpudata) static void trbe_reset_local(struct trbe_cpudata *cpudata) { - trbe_drain_and_disable_local(cpudata); write_sysreg_s(0, SYS_TRBLIMITR_EL1); + trbe_drain_buffer(); write_sysreg_s(0, SYS_TRBPTR_EL1); write_sysreg_s(0, SYS_TRBBASER_EL1); write_sysreg_s(0, SYS_TRBSR_EL1); |