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

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.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 0a606822

tools/perf/arch/powerpc/util/Build

+2 −0
Original line number Diff line number Diff line
@@ -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

tools/perf/arch/powerpc/util/event.c

0 → 100644
+32 −0
Original line number Diff line number Diff line 
// 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;

}

tools/perf/arch/powerpc/util/evsel.c

0 → 100644
+8 −0
Original line number Diff line number Diff line 
// 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);

}