1 files changed, 87 insertions, 0 deletions
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h
new file mode 100644
index 000000000..17ca9b56d
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * intel_pt_pkt_decoder.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ */
+
+#ifndef INCLUDE__INTEL_PT_PKT_DECODER_H__
+#define INCLUDE__INTEL_PT_PKT_DECODER_H__
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define INTEL_PT_PKT_DESC_MAX	256
+
+#define INTEL_PT_NEED_MORE_BYTES	-1
+#define INTEL_PT_BAD_PACKET		-2
+
+#define INTEL_PT_PSB_STR		"\002\202\002\202\002\202\002\202" \
+					"\002\202\002\202\002\202\002\202"
+#define INTEL_PT_PSB_LEN		16
+
+#define INTEL_PT_PKT_MAX_SZ		16
+
+enum intel_pt_pkt_type {
+	INTEL_PT_BAD,
+	INTEL_PT_PAD,
+	INTEL_PT_TNT,
+	INTEL_PT_TIP_PGD,
+	INTEL_PT_TIP_PGE,
+	INTEL_PT_TSC,
+	INTEL_PT_TMA,
+	INTEL_PT_MODE_EXEC,
+	INTEL_PT_MODE_TSX,
+	INTEL_PT_MTC,
+	INTEL_PT_TIP,
+	INTEL_PT_FUP,
+	INTEL_PT_CYC,
+	INTEL_PT_VMCS,
+	INTEL_PT_PSB,
+	INTEL_PT_PSBEND,
+	INTEL_PT_CBR,
+	INTEL_PT_TRACESTOP,
+	INTEL_PT_PIP,
+	INTEL_PT_OVF,
+	INTEL_PT_MNT,
+	INTEL_PT_PTWRITE,
+	INTEL_PT_PTWRITE_IP,
+	INTEL_PT_EXSTOP,
+	INTEL_PT_EXSTOP_IP,
+	INTEL_PT_MWAIT,
+	INTEL_PT_PWRE,
+	INTEL_PT_PWRX,
+	INTEL_PT_BBP,
+	INTEL_PT_BIP,
+	INTEL_PT_BEP,
+	INTEL_PT_BEP_IP,
+};
+
+struct intel_pt_pkt {
+	enum intel_pt_pkt_type	type;
+	int			count;
+	uint64_t		payload;
+};
+
+/*
+ * Decoding of BIP packets conflicts with single-byte TNT packets. Since BIP
+ * packets only occur in the context of a block (i.e. between BBP and BEP), that
+ * context must be recorded and passed to the packet decoder.
+ */
+enum intel_pt_pkt_ctx {
+	INTEL_PT_NO_CTX,	/* BIP packets are invalid */
+	INTEL_PT_BLK_4_CTX,	/* 4-byte BIP packets */
+	INTEL_PT_BLK_8_CTX,	/* 8-byte BIP packets */
+};
+
+const char *intel_pt_pkt_name(enum intel_pt_pkt_type);
+
+int intel_pt_get_packet(const unsigned char *buf, size_t len,
+			struct intel_pt_pkt *packet,
+			enum intel_pt_pkt_ctx *ctx);
+
+void intel_pt_upd_pkt_ctx(const struct intel_pt_pkt *packet,
+			  enum intel_pt_pkt_ctx *ctx);
+
+int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf, size_t len);
+
+#endif