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Diffstat (limited to 'tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c')
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c110
1 files changed, 109 insertions, 1 deletions
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
index 7528ae4f7e28..ba4c9dd18643 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
@@ -64,6 +64,13 @@ static const char * const packet_name[] = {
[INTEL_PT_PIP] = "PIP",
[INTEL_PT_OVF] = "OVF",
[INTEL_PT_MNT] = "MNT",
+ [INTEL_PT_PTWRITE] = "PTWRITE",
+ [INTEL_PT_PTWRITE_IP] = "PTWRITE",
+ [INTEL_PT_EXSTOP] = "EXSTOP",
+ [INTEL_PT_EXSTOP_IP] = "EXSTOP",
+ [INTEL_PT_MWAIT] = "MWAIT",
+ [INTEL_PT_PWRE] = "PWRE",
+ [INTEL_PT_PWRX] = "PWRX",
};
const char *intel_pt_pkt_name(enum intel_pt_pkt_type type)
@@ -123,7 +130,7 @@ static int intel_pt_get_cbr(const unsigned char *buf, size_t len,
if (len < 4)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_CBR;
- packet->payload = buf[2];
+ packet->payload = le16_to_cpu(*(uint16_t *)(buf + 2));
return 4;
}
@@ -217,12 +224,80 @@ static int intel_pt_get_3byte(const unsigned char *buf, size_t len,
}
}
+static int intel_pt_get_ptwrite(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ packet->count = (buf[1] >> 5) & 0x3;
+ packet->type = buf[1] & BIT(7) ? INTEL_PT_PTWRITE_IP :
+ INTEL_PT_PTWRITE;
+
+ switch (packet->count) {
+ case 0:
+ if (len < 6)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->payload = le32_to_cpu(*(uint32_t *)(buf + 2));
+ return 6;
+ case 1:
+ if (len < 10)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->payload = le64_to_cpu(*(uint64_t *)(buf + 2));
+ return 10;
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+}
+
+static int intel_pt_get_exstop(struct intel_pt_pkt *packet)
+{
+ packet->type = INTEL_PT_EXSTOP;
+ return 2;
+}
+
+static int intel_pt_get_exstop_ip(struct intel_pt_pkt *packet)
+{
+ packet->type = INTEL_PT_EXSTOP_IP;
+ return 2;
+}
+
+static int intel_pt_get_mwait(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 10)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_MWAIT;
+ packet->payload = le64_to_cpu(*(uint64_t *)(buf + 2));
+ return 10;
+}
+
+static int intel_pt_get_pwre(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 4)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_PWRE;
+ memcpy_le64(&packet->payload, buf + 2, 2);
+ return 4;
+}
+
+static int intel_pt_get_pwrx(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 7)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_PWRX;
+ memcpy_le64(&packet->payload, buf + 2, 5);
+ return 7;
+}
+
static int intel_pt_get_ext(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
if (len < 2)
return INTEL_PT_NEED_MORE_BYTES;
+ if ((buf[1] & 0x1f) == 0x12)
+ return intel_pt_get_ptwrite(buf, len, packet);
+
switch (buf[1]) {
case 0xa3: /* Long TNT */
return intel_pt_get_long_tnt(buf, len, packet);
@@ -244,6 +319,16 @@ static int intel_pt_get_ext(const unsigned char *buf, size_t len,
return intel_pt_get_tma(buf, len, packet);
case 0xC3: /* 3-byte header */
return intel_pt_get_3byte(buf, len, packet);
+ case 0x62: /* EXSTOP no IP */
+ return intel_pt_get_exstop(packet);
+ case 0xE2: /* EXSTOP with IP */
+ return intel_pt_get_exstop_ip(packet);
+ case 0xC2: /* MWAIT */
+ return intel_pt_get_mwait(buf, len, packet);
+ case 0x22: /* PWRE */
+ return intel_pt_get_pwre(buf, len, packet);
+ case 0xA2: /* PWRX */
+ return intel_pt_get_pwrx(buf, len, packet);
default:
return INTEL_PT_BAD_PACKET;
}
@@ -522,6 +607,29 @@ int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf,
ret = snprintf(buf, buf_len, "%s 0x%llx (NR=%d)",
name, payload, nr);
return ret;
+ case INTEL_PT_PTWRITE:
+ return snprintf(buf, buf_len, "%s 0x%llx IP:0", name, payload);
+ case INTEL_PT_PTWRITE_IP:
+ return snprintf(buf, buf_len, "%s 0x%llx IP:1", name, payload);
+ case INTEL_PT_EXSTOP:
+ return snprintf(buf, buf_len, "%s IP:0", name);
+ case INTEL_PT_EXSTOP_IP:
+ return snprintf(buf, buf_len, "%s IP:1", name);
+ case INTEL_PT_MWAIT:
+ return snprintf(buf, buf_len, "%s 0x%llx Hints 0x%x Extensions 0x%x",
+ name, payload, (unsigned int)(payload & 0xff),
+ (unsigned int)((payload >> 32) & 0x3));
+ case INTEL_PT_PWRE:
+ return snprintf(buf, buf_len, "%s 0x%llx HW:%u CState:%u Sub-CState:%u",
+ name, payload, !!(payload & 0x80),
+ (unsigned int)((payload >> 12) & 0xf),
+ (unsigned int)((payload >> 8) & 0xf));
+ case INTEL_PT_PWRX:
+ return snprintf(buf, buf_len, "%s 0x%llx Last CState:%u Deepest CState:%u Wake Reason 0x%x",
+ name, payload,
+ (unsigned int)((payload >> 4) & 0xf),
+ (unsigned int)(payload & 0xf),
+ (unsigned int)((payload >> 8) & 0xf));
default:
break;
}