[tip:perf/urgent] perf sort: Add sort option for physical address

From: tip-bot for Kan Liang
Date: Tue Sep 05 2017 - 01:25:35 EST

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Commit-ID: 8780fb25ab060bafa5a8149e79b703e0fc7ee847
Gitweb: http://git.kernel.org/tip/8780fb25ab060bafa5a8149e79b703e0fc7ee847
Author: Kan Liang <kan.liang@xxxxxxxxx>
AuthorDate: Tue, 29 Aug 2017 13:11:09 -0400
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 1 Sep 2017 14:46:11 -0300

perf sort: Add sort option for physical address

Add a new sort option "phys_daddr" for --mem-mode sort. With this
option applied, perf can sort and report by sample's physical address.

Signed-off-by: Kan Liang <kan.liang@xxxxxxxxx>
Tested-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Acked-by: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Madhavan Srinivasan <maddy@xxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1504026672-7304-3-git-send-email-kan.liang@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/Documentation/perf-report.txt | 1 +
tools/perf/util/hist.c | 4 +++
tools/perf/util/hist.h | 1 +
tools/perf/util/machine.c | 8 ++++--
tools/perf/util/session.c | 3 +++
tools/perf/util/sort.c | 42 ++++++++++++++++++++++++++++++++
tools/perf/util/sort.h | 1 +
tools/perf/util/symbol.h | 1 +
8 files changed, 59 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 9fa8461..383a98d 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -137,6 +137,7 @@ OPTIONS
- mem: type of memory access for the data at the time of the sample
- snoop: type of snoop (if any) for the data at the time of the sample
- dcacheline: the cacheline the data address is on at the time of the sample
+ - phys_daddr: physical address of data being executed on at the time of sample

And the default sort keys are changed to local_weight, mem, sym, dso,
symbol_daddr, dso_daddr, snoop, tlb, locked, see '--mem-mode'.
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 9453b2e..e60d8d8 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -167,6 +167,10 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
symlen = unresolved_col_width + 4 + 2;
hists__set_unres_dso_col_len(hists, HISTC_MEM_DADDR_DSO);
}
+
+ hists__new_col_len(hists, HISTC_MEM_PHYS_DADDR,
+ unresolved_col_width + 4 + 2);
+
} else {
symlen = unresolved_col_width + 4 + 2;
hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL, symlen);
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index ee3670a..e60dda2 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -47,6 +47,7 @@ enum hist_column {
HISTC_GLOBAL_WEIGHT,
HISTC_MEM_DADDR_SYMBOL,
HISTC_MEM_DADDR_DSO,
+ HISTC_MEM_PHYS_DADDR,
HISTC_MEM_LOCKED,
HISTC_MEM_TLB,
HISTC_MEM_LVL,
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 9eaa953..df70936 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1635,10 +1635,12 @@ static void ip__resolve_ams(struct thread *thread,
ams->al_addr = al.addr;
ams->sym = al.sym;
ams->map = al.map;
+ ams->phys_addr = 0;
}

static void ip__resolve_data(struct thread *thread,
- u8 m, struct addr_map_symbol *ams, u64 addr)
+ u8 m, struct addr_map_symbol *ams,
+ u64 addr, u64 phys_addr)
{
struct addr_location al;

@@ -1658,6 +1660,7 @@ static void ip__resolve_data(struct thread *thread,
ams->al_addr = al.addr;
ams->sym = al.sym;
ams->map = al.map;
+ ams->phys_addr = phys_addr;
}

struct mem_info *sample__resolve_mem(struct perf_sample *sample,
@@ -1669,7 +1672,8 @@ struct mem_info *sample__resolve_mem(struct perf_sample *sample,
return NULL;

ip__resolve_ams(al->thread, &mi->iaddr, sample->ip);
- ip__resolve_data(al->thread, al->cpumode, &mi->daddr, sample->addr);
+ ip__resolve_data(al->thread, al->cpumode, &mi->daddr,
+ sample->addr, sample->phys_addr);
mi->data_src.val = sample->data_src;

return mi;
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index ac86369..a7ebd9f 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1120,6 +1120,9 @@ static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
if (sample_type & PERF_SAMPLE_DATA_SRC)
printf(" . data_src: 0x%"PRIx64"\n", sample->data_src);

+ if (sample_type & PERF_SAMPLE_PHYS_ADDR)
+ printf(" .. phys_addr: 0x%"PRIx64"\n", sample->phys_addr);
+
if (sample_type & PERF_SAMPLE_TRANSACTION)
printf("... transaction: %" PRIx64 "\n", sample->transaction);

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 12359bd..eb3ab90 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1316,6 +1316,47 @@ struct sort_entry sort_mem_dcacheline = {
};

static int64_t
+sort__phys_daddr_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ uint64_t l = 0, r = 0;
+
+ if (left->mem_info)
+ l = left->mem_info->daddr.phys_addr;
+ if (right->mem_info)
+ r = right->mem_info->daddr.phys_addr;
+
+ return (int64_t)(r - l);
+}
+
+static int hist_entry__phys_daddr_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ uint64_t addr = 0;
+ size_t ret = 0;
+ size_t len = BITS_PER_LONG / 4;
+
+ addr = he->mem_info->daddr.phys_addr;
+
+ ret += repsep_snprintf(bf + ret, size - ret, "[%c] ", he->level);
+
+ ret += repsep_snprintf(bf + ret, size - ret, "%-#.*llx", len, addr);
+
+ ret += repsep_snprintf(bf + ret, size - ret, "%-*s", width - ret, "");
+
+ if (ret > width)
+ bf[width] = '\0';
+
+ return width;
+}
+
+struct sort_entry sort_mem_phys_daddr = {
+ .se_header = "Data Physical Address",
+ .se_cmp = sort__phys_daddr_cmp,
+ .se_snprintf = hist_entry__phys_daddr_snprintf,
+ .se_width_idx = HISTC_MEM_PHYS_DADDR,
+};
+
+static int64_t
sort__abort_cmp(struct hist_entry *left, struct hist_entry *right)
{
if (!left->branch_info || !right->branch_info)
@@ -1547,6 +1588,7 @@ static struct sort_dimension memory_sort_dimensions[] = {
DIM(SORT_MEM_LVL, "mem", sort_mem_lvl),
DIM(SORT_MEM_SNOOP, "snoop", sort_mem_snoop),
DIM(SORT_MEM_DCACHELINE, "dcacheline", sort_mem_dcacheline),
+ DIM(SORT_MEM_PHYS_DADDR, "phys_daddr", sort_mem_phys_daddr),
};

#undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index b7c7559..f36dc49 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -245,6 +245,7 @@ enum sort_type {
SORT_MEM_SNOOP,
SORT_MEM_DCACHELINE,
SORT_MEM_IADDR_SYMBOL,
+ SORT_MEM_PHYS_DADDR,
};

/*
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index d00a012..2bd6a1f 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -186,6 +186,7 @@ struct addr_map_symbol {
struct symbol *sym;
u64 addr;
u64 al_addr;
+ u64 phys_addr;
};

struct branch_info {

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