From: Hemant Kumar <hemant@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: maddy@linux.vnet.ibm.com, mpe@ellerman.id.au,
benh@kernel.crashing.org, paulus@samba.org, anton@samba.org,
sukadev@linux.vnet.ibm.com, mikey@neuling.org,
stewart@linux.vnet.ibm.com, eranian@google.com,
Hemant Kumar <hemant@linux.vnet.ibm.com>
Subject: [PATCH 1/6] powerpc/powernv: Data structure and macros definitions
Date: Thu, 3 Nov 2016 12:52:30 +0530 [thread overview]
Message-ID: <1478157755-14636-2-git-send-email-hemant@linux.vnet.ibm.com> (raw)
In-Reply-To: <1478157755-14636-1-git-send-email-hemant@linux.vnet.ibm.com>
Create new header file "ima-pmu.h" to add the data structures
and macros needed for IMA pmu support.
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
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: Stephane Eranian <eranian@google.com>
Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/ima-pmu.h | 73 ++++++++++++++++++++++++++++++++++++++
1 file changed, 73 insertions(+)
create mode 100644 arch/powerpc/include/asm/ima-pmu.h
diff --git a/arch/powerpc/include/asm/ima-pmu.h b/arch/powerpc/include/asm/ima-pmu.h
new file mode 100644
index 0000000..0ed8886
--- /dev/null
+++ b/arch/powerpc/include/asm/ima-pmu.h
@@ -0,0 +1,73 @@
+#ifndef PPC_POWERNV_IMA_PMU_DEF_H
+#define PPC_POWERNV_IMA_PMU_DEF_H
+
+/*
+ * 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 IMA_MAX_CHIPS 32
+#define IMA_MAX_PMUS 32
+#define IMA_MAX_PMU_NAME_LEN 256
+
+#define NEST_IMA_ENGINE_START 1
+#define NEST_IMA_ENGINE_STOP 0
+#define NEST_MAX_PAGES 16
+
+#define NEST_IMA_PRODUCTION_MODE 1
+
+#define IMA_DTB_COMPAT "ibm,opal-in-memory-counters"
+#define IMA_DTB_NEST_COMPAT "ibm,ima-counters-chip"
+
+/*
+ * 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 ima_events {
+ char *ev_name;
+ char *ev_value;
+};
+
+/*
+ * Device tree parser code detects IMA pmu support and
+ * registers new IMA pmus. This structure will
+ * hold the pmu functions and attrs for each ima pmu and
+ * will be referenced at the time of pmu registration.
+ */
+struct ima_pmu {
+ struct pmu pmu;
+ int domain;
+ const struct attribute_group *attr_groups[4];
+};
+
+/*
+ * Domains for IMA PMUs
+ */
+#define IMA_DOMAIN_NEST 1
+
+#define UNKNOWN_DOMAIN -1
+
+#endif /* PPC_POWERNV_IMA_PMU_DEF_H */
--
2.7.4
next prev parent reply other threads:[~2016-11-03 7:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-03 7:22 [PATCH 0/6] IMA Instrumentation support Hemant Kumar
2016-11-03 7:22 ` Hemant Kumar [this message]
2016-11-03 7:22 ` [PATCH 2/6] powerpc/powernv: Autoload IMA device driver module Hemant Kumar
2016-11-03 7:22 ` [PATCH 3/6] powerpc/powernv: Detect supported IMA units and its events Hemant Kumar
2016-11-03 7:22 ` [PATCH 4/6] powerpc/perf: Add event attribute and group to IMA pmus Hemant Kumar
2016-11-03 7:22 ` [PATCH 5/6] powerpc/perf: Generic ima pmu event functions Hemant Kumar
2016-11-03 7:22 ` [PATCH 6/6] powerpc/perf: IMA pmu cpumask and cpu hotplug support Hemant Kumar
2016-11-03 10:26 ` kbuild test robot
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