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authorLeo Yan <leo.yan@linaro.org>2022-05-17 02:03:25 +0000
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-06-19 10:41:43 -0300
commit51ba539f5bdb5a8cc7b1dedd5e73ac54564a7602 (patch)
tree28292024e363a2907e601b95e522bbf8a1fa9a6f /tools/arch/x86/include/uapi/asm/kvm.h
parente5287e6dd3b07e28e6bca5e33a3813a5e83bbc4c (diff)
perf arm-spe: Don't set data source if it's not a memory operation
Except for memory load and store operations, ARM SPE records also can support other operation types, bug when set the data source field the current code assumes a record is a either load operation or store operation, this leads to wrongly synthesize memory samples. This patch strictly checks the record operation type, it only sets data source only for the operation types ARM_SPE_LD and ARM_SPE_ST, otherwise, returns zero for data source. Therefore, we can synthesize memory samples only when data source is a non-zero value, the function arm_spe__is_memory_event() is useless and removed. Fixes: e55ed3423c1bb29f ("perf arm-spe: Synthesize memory event") Reviewed-by: Ali Saidi <alisaidi@amazon.com> Reviewed-by: German Gomez <german.gomez@arm.com> Signed-off-by: Leo Yan <leo.yan@linaro.org> Tested-by: Ali Saidi <alisaidi@amazon.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: alisaidi@amazon.com Cc: Andrew Kilroy <andrew.kilroy@arm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Li Huafei <lihuafei1@huawei.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nick Forrington <nick.forrington@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Link: http://lore.kernel.org/lkml/20220517020326.18580-5-alisaidi@amazon.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/arch/x86/include/uapi/asm/kvm.h')
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