linux-kernel - [PATCH v5 1/7] powerpc/powernv: Data structure and macros definition

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1437045206-7491-2-git-send-email-maddy@linux.vnet.ibm.com>
Date:	Thu, 16 Jul 2015 16:43:20 +0530
From:	Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>
To:	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Cc:	Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Anton Blanchard <anton@...ba.org>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Anshuman Khandual <khandual@...ux.vnet.ibm.com>,
	Stephane Eranian <eranian@...gle.com>
Subject: [PATCH v5 1/7] powerpc/powernv: Data structure and macros definition

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

Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Anton Blanchard <anton@...ba.org>
Cc: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Cc: Anshuman Khandual <khandual@...ux.vnet.ibm.com>
Cc: Stephane Eranian <eranian@...gle.com>
Signed-off-by: Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>
---
 arch/powerpc/perf/nest-pmu.h | 54 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 arch/powerpc/perf/nest-pmu.h

diff --git a/arch/powerpc/perf/nest-pmu.h b/arch/powerpc/perf/nest-pmu.h
new file mode 100644
index 000000000000..28e3c6e024a6
--- /dev/null
+++ b/arch/powerpc/perf/nest-pmu.h
@@ -0,0 +1,54 @@
+/*
+ * Nest Performance Monitor counter support for POWER8 processors.
+ *
+ * Copyright (C) 2015 Madhavan Srinivasan, 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 P8_NEST_MAX_CHIPS		32
+#define P8_NEST_MAX_PMUS		32
+#define P8_NEST_MAX_PMU_NAME_LEN	256
+#define P8_NEST_MAX_EVENTS_SUPPORTED	256
+#define P8_NEST_ENGINE_START		1
+#define P8_NEST_ENGINE_STOP		0
+#define P8_NEST_MODE_PRODUCTION		1
+
+/*
+ * 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 {
+	uint32_t chip_id;
+	uint64_t pbase;
+	uint64_t vbase;
+	uint32_t size;
+};
+
+/*
+ * Place holder for nest pmu events and values.
+ */
+struct nest_ima_events {
+	const char *ev_name;
+	const char *ev_value;
+};
+
+/*
+ * Device tree parser code detects nest pmu support and
+ * registers new nest pmus. This structure will
+ * hold the pmu functions and attrs for each nest pmu and
+ * will be referenced at the time of pmu registration.
+ */
+struct nest_pmu {
+	struct pmu pmu;
+	const struct attribute_group *attr_groups[4];
+};
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/