From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E91C32853FC; Tue, 20 May 2025 18:17:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747765042; cv=none; b=bouIAQdTl5655/rLh6KIxWE6sAuS/HocQ9effgQMoJ2DeJIsq9GQa5iw/IGgIVEKiGltoTj9UBuL2KzvqNJOfJgbdFAo8wYl0fi+A4ivqX9ycb5fFptWYibLQOth1ivgCxexae+vO9p5xdxShivmMF96F1NLYD4weH9KbiQi9io= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747765042; c=relaxed/simple; bh=s3ZgcZ6BKTnLp+A1PAb6rpm8YoZDgBt/nxZwAaxXJ7E=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=PoHVItpZv0WaKdJX+5BSOXGlxAFAtj/PbTKRzoAnONAPNW12TLWNq1fCoPLafadvqL3CbHOPYxKzDynP0xJkzXLP3cjUJOvFdN7ZDIJrPRGkkpheSk/f02twXQsgxBom2FJvPBnC5Z/fJ2FF6pgsYHvoc7gVORe/i6h245Kvknc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=U4bEg5AQ; arc=none smtp.client-ip=192.198.163.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="U4bEg5AQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1747765041; x=1779301041; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=s3ZgcZ6BKTnLp+A1PAb6rpm8YoZDgBt/nxZwAaxXJ7E=; b=U4bEg5AQgSU2XGBQ6e6JLyRbzM2S4A6nBX8c0g+3ru39H2LSNncu+sEl JzhkoG61GypAFiQsSLcpRWJd2kZTym5Wj6zqWYCpeymkFp98ufO27Agvh VblHSr9AdnZjMWMEi7BrO9lZvIYjSyHMN5huTPQEzNEtJ1CBgzW1J130m oYnAja/am+5KHokMHONryulUFRWyIm84GKV0K6TGIKQ3Fp92Uy1MEswwa kdjHoRrA3CjDM9LniBxVfcY48yocq7uyMQYeEpI+IcVd0FomfVJU0ZobR +nxgFMDP4TjAqA0S9ehvABvqn9poo5Ci6Xz7K1C52P9rb9kXURWiz+YvC w==; X-CSE-ConnectionGUID: MTXTFa7GQaSaGjWiEKMrhA== X-CSE-MsgGUID: jIVcGFOPQ1WU/ZQBh3unFg== X-IronPort-AV: E=McAfee;i="6700,10204,11439"; a="49848024" X-IronPort-AV: E=Sophos;i="6.15,302,1739865600"; d="scan'208";a="49848024" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 May 2025 11:17:14 -0700 X-CSE-ConnectionGUID: zgxjsAdARFahbTEB79tOeA== X-CSE-MsgGUID: uyVaAjEwQi6E30TJqOU05A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,302,1739865600"; d="scan'208";a="144514719" Received: from kanliang-dev.jf.intel.com ([10.165.154.102]) by orviesa003.jf.intel.com with ESMTP; 20 May 2025 11:17:13 -0700 From: kan.liang@linux.intel.com To: peterz@infradead.org, mingo@redhat.com, namhyung@kernel.org, irogers@google.com, mark.rutland@arm.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Cc: eranian@google.com, ctshao@google.com, tmricht@linux.ibm.com, leo.yan@arm.com, Kan Liang , Vineet Gupta , Vineet Gupta , linux-snps-arc@lists.infradead.org Subject: [PATCH V4 11/16] arc/perf: Remove driver-specific throttle support Date: Tue, 20 May 2025 11:16:39 -0700 Message-Id: <20250520181644.2673067-12-kan.liang@linux.intel.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20250520181644.2673067-1-kan.liang@linux.intel.com> References: <20250520181644.2673067-1-kan.liang@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Kan Liang The throttle support has been added in the generic code. Remove the driver-specific throttle support. Besides the throttle, perf_event_overflow may return true because of event_limit. It already does an inatomic event disable. The pmu->stop is not required either. Acked-by: Vineet Gupta Signed-off-by: Kan Liang Cc: Vineet Gupta Cc: linux-snps-arc@lists.infradead.org --- arch/arc/kernel/perf_event.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c index 6e5a651cd75c..ed6d4f0cd621 100644 --- a/arch/arc/kernel/perf_event.c +++ b/arch/arc/kernel/perf_event.c @@ -599,10 +599,8 @@ static irqreturn_t arc_pmu_intr(int irq, void *dev) arc_perf_event_update(event, &event->hw, event->hw.idx); perf_sample_data_init(&data, 0, hwc->last_period); - if (arc_pmu_event_set_period(event)) { - if (perf_event_overflow(event, &data, regs)) - arc_pmu_stop(event, 0); - } + if (arc_pmu_event_set_period(event)) + perf_event_overflow(event, &data, regs); active_ints &= ~BIT(idx); } while (active_ints); -- 2.38.1