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[PATCH v5 01/13] powerpc/powernv: Data structure and macros definitions

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From: Hemant Kumar <hemant@linux.vnet.ibm.com>

Create new header file "imc-pmu.h" to add the data structures
and macros needed for IMC pmu support.

Cc: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Anton Blanchard <anton@samba.org>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Stewart Smith <stewart@linux.vnet.ibm.com>
Cc: Daniel Axtens <dja@axtens.net>
Cc: Stephane Eranian <eranian@google.com>
Cc: Anju T Sudhakar <anju@linux.vnet.ibm.com>
Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
---
 arch/powerpc/include/asm/imc-pmu.h | 73 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 arch/powerpc/include/asm/imc-pmu.h

diff --git a/arch/powerpc/include/asm/imc-pmu.h b/arch/powerpc/include/asm/imc-pmu.h
new file mode 100644
index 000000000000..323232248cc4
--- /dev/null
+++ b/arch/powerpc/include/asm/imc-pmu.h
@@ -0,0 +1,73 @@
+#ifndef PPC_POWERNV_IMC_PMU_DEF_H
+#define PPC_POWERNV_IMC_PMU_DEF_H
+
+/*
+ * IMC Nest Performance Monitor counter support.
+ *
+ * Copyright (C) 2016 Madhavan Srinivasan, IBM Corporation.
+ *           (C) 2016 Hemant K Shaw, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/perf_event.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/io.h>
+#include <asm/opal.h>
+
+#define IMC_MAX_CHIPS			32
+#define IMC_MAX_PMUS			32
+#define IMC_MAX_PMU_NAME_LEN		256
+
+#define NEST_IMC_ENGINE_START		1
+#define NEST_IMC_ENGINE_STOP		0
+#define NEST_MAX_PAGES			16
+
+#define NEST_IMC_PRODUCTION_MODE	1
+
+#define IMC_DTB_COMPAT		"ibm,opal-in-memory-counters"
+#define IMC_DTB_NEST_COMPAT	"ibm,imc-counters-nest"
+
+/*
+ * Structure to hold per chip specific memory address
+ * information for nest pmus. Nest Counter data are exported
+ * in per-chip reserved memory region by the PORE Engine.
+ */
+struct perchip_nest_info {
+	u32 chip_id;
+	u64 pbase;
+	u64 vbase[NEST_MAX_PAGES];
+	u64 size;
+};
+
+/*
+ * Place holder for nest pmu events and values.
+ */
+struct imc_events {
+	char *ev_name;
+	char *ev_value;
+};
+
+/*
+ * Device tree parser code detects IMC pmu support and
+ * registers new IMC pmus. This structure will
+ * hold the pmu functions and attrs for each imc pmu and
+ * will be referenced at the time of pmu registration.
+ */
+struct imc_pmu {
+	struct pmu pmu;
+	int domain;
+	const struct attribute_group *attr_groups[4];
+};
+
+/*
+ * Domains for IMC PMUs
+ */
+#define IMC_DOMAIN_NEST		1
+
+#define UNKNOWN_DOMAIN		-1
+
+#endif /* PPC_POWERNV_IMC_PMU_DEF_H */
-- 
2.7.4

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Thread

[PATCH v5 00/13] IMC Instrumentation Support Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-16 08:40 +0100
  [PATCH 13/13] powerpc/perf: Enable/disable core engine during cpuhotplug Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-16 08:40 +0100
  [PATCH 11/13] powerpc/powernv: Add device shutdown function for Core IMC Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-16 08:40 +0100
  [PATCH v5 10/13] powerpc/perf: Thread IMC PMU functions Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-16 08:40 +0100
  [PATCH v5 01/13] powerpc/powernv: Data structure and macros definitions Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-16 08:40 +0100
  [PATCH v5 04/13] powerpc/perf: Add event attribute and group to IMC pmus Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-16 08:40 +0100
  [PATCH v5 03/13] powerpc/powernv: Detect supported IMC units and its events Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-16 08:40 +0100
  [PATCH v5 08/13] powerpc/perf: PMU functions for Core IMC and hotplugging Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-16 08:40 +0100
    Re: [PATCH v5 08/13] powerpc/perf: PMU functions for Core IMC and  hotplugging Gautham R Shenoy <ego@linux.vnet.ibm.com> - 2017-03-23 14:20 +0100
  [PATCH v5 09/13] powerpc/powernv: Thread IMC events detection Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-16 08:40 +0100

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