linux-kernel - [PATCH v3 01/27] tools headers uapi: Update tools's copy of linux/perf

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Date:   Mon, 29 Mar 2021 15:00:20 +0800
From:   Jin Yao <yao.jin@...ux.intel.com>
To:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com
Cc:     Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com,
        Jin Yao <yao.jin@...ux.intel.com>
Subject: [PATCH v3 01/27] tools headers uapi: Update tools's copy of linux/perf_event.h

To get the changes in:

Liang Kan's patch
("perf: Introduce PERF_TYPE_HARDWARE_PMU and PERF_TYPE_HW_CACHE_PMU")

Kan's patch is in review at the moment, but the following perf tool
patches need this interface for hybrid support.

This patch can be removed after Kan's patch is upstreamed.

Signed-off-by: Jin Yao <yao.jin@...ux.intel.com>
---
v3:
 - No change.

 tools/include/uapi/linux/perf_event.h | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index ad15e40d7f5d..c0a511eea498 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -33,6 +33,8 @@ enum perf_type_id {
 	PERF_TYPE_HW_CACHE			= 3,
 	PERF_TYPE_RAW				= 4,
 	PERF_TYPE_BREAKPOINT			= 5,
+	PERF_TYPE_HARDWARE_PMU			= 6,
+	PERF_TYPE_HW_CACHE_PMU			= 7,
 
 	PERF_TYPE_MAX,				/* non-ABI */
 };
@@ -94,6 +96,30 @@ enum perf_hw_cache_op_result_id {
 	PERF_COUNT_HW_CACHE_RESULT_MAX,		/* non-ABI */
 };
 
+/*
+ * attr.config layout for type PERF_TYPE_HARDWARE* and PERF_TYPE_HW_CACHE*
+ * PERF_TYPE_HARDWARE:		0xAA
+ *				AA: hardware event ID
+ * PERF_TYPE_HW_CACHE:		0xCCBBAA
+ *				AA: hardware cache ID
+ *				BB: hardware cache op ID
+ *				CC: hardware cache op result ID
+ * PERF_TYPE_HARDWARE_PMU:	0xDD000000AA
+ *				AA: hardware event ID
+ *				DD: PMU type ID
+ * PERF_TYPE_HW_CACHE_PMU:	0xDD00CCBBAA
+ *				AA: hardware cache ID
+ *				BB: hardware cache op ID
+ *				CC: hardware cache op result ID
+ *				DD: PMU type ID
+ */
+#define PERF_HW_CACHE_ID_SHIFT			0
+#define PERF_HW_CACHE_OP_ID_SHIFT		8
+#define PERF_HW_CACHE_OP_RESULT_ID_SHIFT	16
+#define PERF_HW_CACHE_EVENT_MASK		0xffffff
+
+#define PERF_PMU_TYPE_SHIFT			32
+
 /*
  * Special "software" events provided by the kernel, even if the hardware
  * does not support performance events. These events measure various
-- 
2.17.1