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Diffstat (limited to 'tools/perf/util/s390-cpumsf.c')
-rw-r--r--tools/perf/util/s390-cpumsf.c96
1 files changed, 78 insertions, 18 deletions
diff --git a/tools/perf/util/s390-cpumsf.c b/tools/perf/util/s390-cpumsf.c
index c215704931dc..10d36d9b7909 100644
--- a/tools/perf/util/s390-cpumsf.c
+++ b/tools/perf/util/s390-cpumsf.c
@@ -17,8 +17,8 @@
* see Documentation/perf.data-file-format.txt.
* PERF_RECORD_AUXTRACE_INFO:
* Defines a table of contains for PERF_RECORD_AUXTRACE records. This
- * record is generated during 'perf record' command. Each record contains up
- * to 256 entries describing offset and size of the AUXTRACE data in the
+ * record is generated during 'perf record' command. Each record contains
+ * up to 256 entries describing offset and size of the AUXTRACE data in the
* perf.data file.
* PERF_RECORD_AUXTRACE_ERROR:
* Indicates an error during AUXTRACE collection such as buffer overflow.
@@ -237,10 +237,33 @@ static int s390_cpumcf_dumpctr(struct s390_cpumsf *sf,
return rc;
}
-/* Display s390 CPU measurement facility basic-sampling data entry */
+/* Display s390 CPU measurement facility basic-sampling data entry
+ * Data written on s390 in big endian byte order and contains bit
+ * fields across byte boundaries.
+ */
static bool s390_cpumsf_basic_show(const char *color, size_t pos,
- struct hws_basic_entry *basic)
+ struct hws_basic_entry *basicp)
{
+ struct hws_basic_entry *basic = basicp;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ struct hws_basic_entry local;
+ unsigned long long word = be64toh(*(unsigned long long *)basicp);
+
+ memset(&local, 0, sizeof(local));
+ local.def = be16toh(basicp->def);
+ local.prim_asn = word & 0xffff;
+ local.CL = word >> 30 & 0x3;
+ local.I = word >> 32 & 0x1;
+ local.AS = word >> 33 & 0x3;
+ local.P = word >> 35 & 0x1;
+ local.W = word >> 36 & 0x1;
+ local.T = word >> 37 & 0x1;
+ local.U = word >> 40 & 0xf;
+ local.ia = be64toh(basicp->ia);
+ local.gpp = be64toh(basicp->gpp);
+ local.hpp = be64toh(basicp->hpp);
+ basic = &local;
+#endif
if (basic->def != 1) {
pr_err("Invalid AUX trace basic entry [%#08zx]\n", pos);
return false;
@@ -258,10 +281,22 @@ static bool s390_cpumsf_basic_show(const char *color, size_t pos,
return true;
}
-/* Display s390 CPU measurement facility diagnostic-sampling data entry */
+/* Display s390 CPU measurement facility diagnostic-sampling data entry.
+ * Data written on s390 in big endian byte order and contains bit
+ * fields across byte boundaries.
+ */
static bool s390_cpumsf_diag_show(const char *color, size_t pos,
- struct hws_diag_entry *diag)
+ struct hws_diag_entry *diagp)
{
+ struct hws_diag_entry *diag = diagp;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ struct hws_diag_entry local;
+ unsigned long long word = be64toh(*(unsigned long long *)diagp);
+
+ local.def = be16toh(diagp->def);
+ local.I = word >> 32 & 0x1;
+ diag = &local;
+#endif
if (diag->def < S390_CPUMSF_DIAG_DEF_FIRST) {
pr_err("Invalid AUX trace diagnostic entry [%#08zx]\n", pos);
return false;
@@ -272,35 +307,52 @@ static bool s390_cpumsf_diag_show(const char *color, size_t pos,
}
/* Return TOD timestamp contained in an trailer entry */
-static unsigned long long trailer_timestamp(struct hws_trailer_entry *te)
+static unsigned long long trailer_timestamp(struct hws_trailer_entry *te,
+ int idx)
{
/* te->t set: TOD in STCKE format, bytes 8-15
* to->t not set: TOD in STCK format, bytes 0-7
*/
unsigned long long ts;
- memcpy(&ts, &te->timestamp[te->t], sizeof(ts));
- return ts;
+ memcpy(&ts, &te->timestamp[idx], sizeof(ts));
+ return be64toh(ts);
}
/* Display s390 CPU measurement facility trailer entry */
static bool s390_cpumsf_trailer_show(const char *color, size_t pos,
struct hws_trailer_entry *te)
{
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ struct hws_trailer_entry local;
+ const unsigned long long flags = be64toh(te->flags);
+
+ memset(&local, 0, sizeof(local));
+ local.f = flags >> 63 & 0x1;
+ local.a = flags >> 62 & 0x1;
+ local.t = flags >> 61 & 0x1;
+ local.bsdes = be16toh((flags >> 16 & 0xffff));
+ local.dsdes = be16toh((flags & 0xffff));
+ memcpy(&local.timestamp, te->timestamp, sizeof(te->timestamp));
+ local.overflow = be64toh(te->overflow);
+ local.clock_base = be64toh(te->progusage[0]) >> 63 & 1;
+ local.progusage2 = be64toh(te->progusage2);
+ te = &local;
+#endif
if (te->bsdes != sizeof(struct hws_basic_entry)) {
pr_err("Invalid AUX trace trailer entry [%#08zx]\n", pos);
return false;
}
color_fprintf(stdout, color, " [%#08zx] Trailer %c%c%c bsdes:%d"
" dsdes:%d Overflow:%lld Time:%#llx\n"
- "\t\tC:%d TOD:%#lx 1:%#llx 2:%#llx\n",
+ "\t\tC:%d TOD:%#lx\n",
pos,
te->f ? 'F' : ' ',
te->a ? 'A' : ' ',
te->t ? 'T' : ' ',
te->bsdes, te->dsdes, te->overflow,
- trailer_timestamp(te), te->clock_base, te->progusage2,
- te->progusage[0], te->progusage[1]);
+ trailer_timestamp(te, te->clock_base),
+ te->clock_base, te->progusage2);
return true;
}
@@ -327,13 +379,13 @@ static bool s390_cpumsf_validate(int machine_type,
*dsdes = *bsdes = 0;
if (len & (S390_CPUMSF_PAGESZ - 1)) /* Illegal size */
return false;
- if (basic->def != 1) /* No basic set entry, must be first */
+ if (be16toh(basic->def) != 1) /* No basic set entry, must be first */
return false;
/* Check for trailer entry at end of SDB */
te = (struct hws_trailer_entry *)(buf + S390_CPUMSF_PAGESZ
- sizeof(*te));
- *bsdes = te->bsdes;
- *dsdes = te->dsdes;
+ *bsdes = be16toh(te->bsdes);
+ *dsdes = be16toh(te->dsdes);
if (!te->bsdes && !te->dsdes) {
/* Very old hardware, use CPUID */
switch (machine_type) {
@@ -495,19 +547,27 @@ static bool s390_cpumsf_make_event(size_t pos,
static unsigned long long get_trailer_time(const unsigned char *buf)
{
struct hws_trailer_entry *te;
- unsigned long long aux_time;
+ unsigned long long aux_time, progusage2;
+ bool clock_base;
te = (struct hws_trailer_entry *)(buf + S390_CPUMSF_PAGESZ
- sizeof(*te));
- if (!te->clock_base) /* TOD_CLOCK_BASE value missing */
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ clock_base = be64toh(te->progusage[0]) >> 63 & 0x1;
+ progusage2 = be64toh(te->progusage[1]);
+#else
+ clock_base = te->clock_base;
+ progusage2 = te->progusage2;
+#endif
+ if (!clock_base) /* TOD_CLOCK_BASE value missing */
return 0;
/* Correct calculation to convert time stamp in trailer entry to
* nano seconds (taken from arch/s390 function tod_to_ns()).
* TOD_CLOCK_BASE is stored in trailer entry member progusage2.
*/
- aux_time = trailer_timestamp(te) - te->progusage2;
+ aux_time = trailer_timestamp(te, clock_base) - progusage2;
aux_time = (aux_time >> 9) * 125 + (((aux_time & 0x1ff) * 125) >> 9);
return aux_time;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-15 15:00:45 +0300