Commit ff0bd0a3 authored by Athira Rajeev's avatar Athira Rajeev Committed by Arnaldo Carvalho de Melo

perf powerpc: Add support for PERF_SAMPLE_WEIGHT_STRUCT

Add arch specific arch_evsel__set_sample_weight() to set the new
sample type for powerpc.

Add arch specific arch_perf_parse_sample_weight() to store the
sample->weight values depending on the sample type applied.
if the new sample type (PERF_SAMPLE_WEIGHT_STRUCT) is applied,
store only the lower 32 bits to sample->weight. If sample type
is 'PERF_SAMPLE_WEIGHT', store the full 64-bit to sample->weight.
Signed-off-by: default avatarAthira Rajeev <atrajeev@linux.vnet.ibm.com>
Reviewed-by: default avatarMadhavan Srinivasan <maddy@linux.ibm.com>
Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Link: https://lore.kernel.org/r/1616425047-1666-4-git-send-email-atrajeev@linux.vnet.ibm.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 0a606822
......@@ -4,6 +4,8 @@ perf-y += kvm-stat.o
perf-y += perf_regs.o
perf-y += mem-events.o
perf-y += sym-handling.o
perf-y += evsel.o
perf-y += event.o
perf-$(CONFIG_DWARF) += dwarf-regs.o
perf-$(CONFIG_DWARF) += skip-callchain-idx.o
......
// SPDX-License-Identifier: GPL-2.0
#include <linux/types.h>
#include <linux/string.h>
#include <linux/zalloc.h>
#include "../../../util/event.h"
#include "../../../util/synthetic-events.h"
#include "../../../util/machine.h"
#include "../../../util/tool.h"
#include "../../../util/map.h"
#include "../../../util/debug.h"
void arch_perf_parse_sample_weight(struct perf_sample *data,
const __u64 *array, u64 type)
{
union perf_sample_weight weight;
weight.full = *array;
if (type & PERF_SAMPLE_WEIGHT)
data->weight = weight.full;
else
data->weight = weight.var1_dw;
}
void arch_perf_synthesize_sample_weight(const struct perf_sample *data,
__u64 *array, u64 type)
{
*array = data->weight;
if (type & PERF_SAMPLE_WEIGHT_STRUCT)
*array &= 0xffffffff;
}
// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include "util/evsel.h"
void arch_evsel__set_sample_weight(struct evsel *evsel)
{
evsel__set_sample_bit(evsel, WEIGHT_STRUCT);
}
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