From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3514CC433F5 for ; Wed, 11 May 2022 19:47:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347163AbiEKTrJ (ORCPT ); Wed, 11 May 2022 15:47:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346094AbiEKTrB (ORCPT ); Wed, 11 May 2022 15:47:01 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B99C139175; Wed, 11 May 2022 12:47:00 -0700 (PDT) Date: Wed, 11 May 2022 19:46:58 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1652298419; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oWjakq/illQMU6mUjolEq2Ah4DoleXLzYIwdYWOO0fU=; b=wVeNQv4oPDoZEZoqQgGIP9gD7aCUVCR6fzsW/18PGQyQgfaqCPvhWQG4Yy41XjvlzjZD8n iPw2h+f6Ns6zMuepl8mVo946oQDkMGt1Fre6uX8A72Vtc5Yue2apY3SyGYJD0CyJmGnScQ zAr3YE9nvlr1vQNCXMxrfN6huQw0kKokEAc29FjczDBecY00IdNVGSFjgINZg4jj2pnPpg BmUHeLwlvCHmkAF0xrzpX41lOC16YVfsSprkA2JpmQXUV++p47FHLjORtSlEC1R0U5PGWq GZMwG0Gz10NKju9U67eJdzBEXTZAEEFczeg5Lp65ZcQUCribTsptD41QG0HFxg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1652298419; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oWjakq/illQMU6mUjolEq2Ah4DoleXLzYIwdYWOO0fU=; b=/bq4l2GoVK2HcXr+feW9CwazIScxmBkPcAKad9bgVreLTexbVoStf8oIiY4ViorRLjRo3z c02mbTfjd7jCXHDw== From: "tip-bot2 for Ravi Bangoria" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: perf/core] perf/amd/ibs: Advertise zen4_ibs_extensions as pmu capability attribute Cc: Ravi Bangoria , "Peter Zijlstra (Intel)" , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20220509044914.1473-5-ravi.bangoria@amd.com> References: <20220509044914.1473-5-ravi.bangoria@amd.com> MIME-Version: 1.0 Message-ID: <165229841825.4207.4646918223828683533.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the perf/core branch of tip: Commit-ID: 838de1d843fc9b6161e0e1c6308a8c027d08606d Gitweb: https://git.kernel.org/tip/838de1d843fc9b6161e0e1c6308a8c027d08606d Author: Ravi Bangoria AuthorDate: Mon, 09 May 2022 10:19:10 +05:30 Committer: Peter Zijlstra CommitterDate: Wed, 11 May 2022 16:27:10 +02:00 perf/amd/ibs: Advertise zen4_ibs_extensions as pmu capability attribute PMU driver can advertise certain feature via capability attribute('caps' sysfs directory) which can be consumed by userspace tools like perf. Add zen4_ibs_extensions capability attribute for IBS pmus. This attribute will be enabled when CPUID_Fn8000001B_EAX[11] is set. With patch on Zen4: $ ls /sys/bus/event_source/devices/ibs_op/caps zen4_ibs_extensions Signed-off-by: Ravi Bangoria Signed-off-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/r/20220509044914.1473-5-ravi.bangoria@amd.com --- arch/x86/events/amd/ibs.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c index 2dc8b7e..c251bc4 100644 --- a/arch/x86/events/amd/ibs.c +++ b/arch/x86/events/amd/ibs.c @@ -537,8 +537,14 @@ static struct attribute_group empty_format_group = { .attrs = attrs_empty, }; +static struct attribute_group empty_caps_group = { + .name = "caps", + .attrs = attrs_empty, +}; + static const struct attribute_group *empty_attr_groups[] = { &empty_format_group, + &empty_caps_group, NULL, }; @@ -546,6 +552,7 @@ PMU_FORMAT_ATTR(rand_en, "config:57"); PMU_FORMAT_ATTR(cnt_ctl, "config:19"); PMU_EVENT_ATTR_STRING(l3missonly, fetch_l3missonly, "config:59"); PMU_EVENT_ATTR_STRING(l3missonly, op_l3missonly, "config:16"); +PMU_EVENT_ATTR_STRING(zen4_ibs_extensions, zen4_ibs_extensions, "1"); static umode_t zen4_ibs_extensions_is_visible(struct kobject *kobj, struct attribute *attr, int i) @@ -563,6 +570,11 @@ static struct attribute *fetch_l3missonly_attrs[] = { NULL, }; +static struct attribute *zen4_ibs_extensions_attrs[] = { + &zen4_ibs_extensions.attr.attr, + NULL, +}; + static struct attribute_group group_rand_en = { .name = "format", .attrs = rand_en_attrs, @@ -574,13 +586,21 @@ static struct attribute_group group_fetch_l3missonly = { .is_visible = zen4_ibs_extensions_is_visible, }; +static struct attribute_group group_zen4_ibs_extensions = { + .name = "caps", + .attrs = zen4_ibs_extensions_attrs, + .is_visible = zen4_ibs_extensions_is_visible, +}; + static const struct attribute_group *fetch_attr_groups[] = { &group_rand_en, + &empty_caps_group, NULL, }; static const struct attribute_group *fetch_attr_update[] = { &group_fetch_l3missonly, + &group_zen4_ibs_extensions, NULL, }; @@ -615,6 +635,7 @@ static struct attribute_group group_op_l3missonly = { static const struct attribute_group *op_attr_update[] = { &group_cnt_ctl, &group_op_l3missonly, + &group_zen4_ibs_extensions, NULL, };