Groups > linux.kernel > #1198598

[PATCH v7 2/7] powerpc/powernv: Add OPAL support for Nest PMU

Path	csiph.com!optima2.xanadu-bbs.net!xanadu-bbs.net!news.mixmin.net!aioe.org!bofh.it!news.nic.it!robomod
From	Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Newsgroups	linux.kernel
Subject	[PATCH v7 2/7] powerpc/powernv: Add OPAL support for Nest PMU
Date	Mon, 03 Aug 2015 09:40:02 +0200
Message-ID	<pTivM-4OW-9@gated-at.bofh.it> (permalink)
References	<pTivL-4OW-7@gated-at.bofh.it>
X-Original-To	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
X-Helo	d28dlp02.in.ibm.com
X-Mailfrom	maddy@linux.vnet.ibm.com
X-Rcptto	linux-kernel@vger.kernel.org
X-Mailer	git-send-email 1.9.1
X-Tm-As-Mml	disable
X-Content-Scanned	Fidelis XPS MAILER
X-Cbid	15080307-0005-0000-0000-000006C28C49
Sender	robomod@news.nic.it
List-ID	<linux-kernel.vger.kernel.org>
X-Mailing-List	linux-kernel@vger.kernel.org
Approved	robomod@news.nic.it
Lines	64
Organization	linux.* mail to news gateway
X-Original-Cc	Madhavan Srinivasan <maddy@linux.vnet.ibm.com>, Stewart Smith <stewart@linux.vnet.ibm.com>, Jeremy Kerr <jk@ozlabs.org>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Michael Ellerman <mpe@ellerman.id.au>, Paul Mackerras <paulus@samba.org>, Anton Blanchard <anton@samba.org>, Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>, Daniel Axtens <dja@axtens.net>, Stephane Eranian <eranian@google.com>
X-Original-Date	Mon, 3 Aug 2015 13:05:54 +0530
X-Original-Message-ID	<1438587359-6165-3-git-send-email-maddy@linux.vnet.ibm.com>
X-Original-References	<1438587359-6165-1-git-send-email-maddy@linux.vnet.ibm.com>
X-Original-Sender	linux-kernel-owner@vger.kernel.org
Xref	csiph.com linux.kernel:1198598

Show key headers only | View raw

Nest Counters can be configured via PORE Engine and OPAL
provides an interface to start/stop it.

OPAL side patches are posted in the skiboot mailing.

Cc: Stewart Smith <stewart@linux.vnet.ibm.com>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Anton Blanchard <anton@samba.org>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Daniel Axtens <dja@axtens.net>
Cc: Stephane Eranian <eranian@google.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
---
 arch/powerpc/include/asm/opal-api.h            | 3 ++-
 arch/powerpc/include/asm/opal.h                | 1 +
 arch/powerpc/platforms/powernv/opal-wrappers.S | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index e9e4c52f3685..52903449d435 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -154,7 +154,8 @@
 #define OPAL_FLASH_WRITE			111
 #define OPAL_FLASH_ERASE			112
 #define OPAL_PRD_MSG				113
-#define OPAL_LAST				113
+#define OPAL_NEST_IMA_CONTROL			117
+#define OPAL_LAST				117
 
 /* Device tree flags */
 
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 958e941c0cda..7c813ed52ab4 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -202,6 +202,7 @@ int64_t opal_flash_write(uint64_t id, uint64_t offset, uint64_t buf,
 		uint64_t size, uint64_t token);
 int64_t opal_flash_erase(uint64_t id, uint64_t offset, uint64_t size,
 		uint64_t token);
+int64_t opal_nest_ima_control(uint64_t mode, uint64_t value);
 
 /* Internal functions */
 extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index d6a7b8252e4d..c475c04468fb 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -297,3 +297,4 @@ OPAL_CALL(opal_flash_read,			OPAL_FLASH_READ);
 OPAL_CALL(opal_flash_write,			OPAL_FLASH_WRITE);
 OPAL_CALL(opal_flash_erase,			OPAL_FLASH_ERASE);
 OPAL_CALL(opal_prd_msg,				OPAL_PRD_MSG);
+OPAL_CALL(opal_nest_ima_control,		OPAL_NEST_IMA_CONTROL);
-- 
1.9.1

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

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH v7 2/7] powerpc/powernv: Add OPAL support for Nest PMU Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2015-08-03 09:40 +0200

csiph-web