From: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Anton Blanchard <anton@samba.org>, Daniel Axtens <dja@axtens.net>,
Stephane Eranian <eranian@google.com>,
Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Subject: [PATCH v8 2/7] powerpc/powernv: Add OPAL support for Nest PMU
Date: Tue, 23 Feb 2016 09:16:33 +0530 [thread overview]
Message-ID: <1456199198-11056-3-git-send-email-maddy@linux.vnet.ibm.com> (raw)
In-Reply-To: <1456199198-11056-1-git-send-email-maddy@linux.vnet.ibm.com>
Nest Counters can be configured via PORE Engine and OPAL
provides an interface to start/stop it.
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: Daniel Axtens <dja@axtens.net>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
---
OPAL side patches are posted in the skiboot mailing.
arch/powerpc/include/asm/opal-api.h | 3 ++-
arch/powerpc/include/asm/opal.h | 3 +++
arch/powerpc/platforms/powernv/opal-wrappers.S | 1 +
3 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index f8faaaeeca1e..1845af7917a4 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -158,7 +158,8 @@
#define OPAL_LEDS_SET_INDICATOR 115
#define OPAL_CEC_REBOOT2 116
#define OPAL_CONSOLE_FLUSH 117
-#define OPAL_LAST 117
+#define OPAL_NEST_COUNTERS_CONTROL 118
+#define OPAL_LAST 118
/* Device tree flags */
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 07a99e638449..6556e2a2141c 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -210,6 +210,9 @@ int64_t opal_flash_write(uint64_t id, uint64_t offset, uint64_t buf,
int64_t opal_flash_erase(uint64_t id, uint64_t offset, uint64_t size,
uint64_t token);
+int64_t opal_nest_counters_control(uint64_t mode, uint64_t value1,
+ uint64_t value2, uint64_t value3);
+
/* Internal functions */
extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
int depth, void *data);
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index e45b88a5d7e0..193fed741a53 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -302,3 +302,4 @@ OPAL_CALL(opal_prd_msg, OPAL_PRD_MSG);
OPAL_CALL(opal_leds_get_ind, OPAL_LEDS_GET_INDICATOR);
OPAL_CALL(opal_leds_set_ind, OPAL_LEDS_SET_INDICATOR);
OPAL_CALL(opal_console_flush, OPAL_CONSOLE_FLUSH);
+OPAL_CALL(opal_nest_counters_control, OPAL_NEST_COUNTERS_CONTROL);
--
1.9.1
next prev parent reply other threads:[~2016-02-23 3:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-23 3:46 [PATCH v8 0/7] powerpc/powernv: Nest Instrumentation support Madhavan Srinivasan
2016-02-23 3:46 ` [PATCH v8 1/7] powerpc/powernv: Data structure and macros definition Madhavan Srinivasan
2016-02-23 3:46 ` Madhavan Srinivasan [this message]
2016-02-23 3:46 ` [PATCH v8 3/7] powerpc/powernv: autoload nest unit driver module Madhavan Srinivasan
2016-02-23 3:46 ` [PATCH v8 4/7] powerpc/powernv: detect supported nest units and its events Madhavan Srinivasan
2016-02-23 3:46 ` [PATCH v8 5/7] powerpc/perf: Add event attribute and group to nest pmu Madhavan Srinivasan
2016-02-23 3:46 ` [PATCH v8 6/7] powerpc/perf: generic nest pmu event functions Madhavan Srinivasan
2016-02-23 3:46 ` [PATCH v8 7/7] powerpc/perf: nest pmu cpumask and cpu hotplug support Madhavan Srinivasan
2016-02-29 20:13 ` kbuild test robot
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