From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (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 D424128850A; Wed, 14 May 2025 15:14:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747235692; cv=none; b=jF04u2u/lhZGtMSHFjKyGAhDBxEicuTVB+ZD46lOS67eWxLN3l6SdLnk9iDJzo7hTQvNds/LZBOF4sBH7WUdE8IrC1Z+Fes50b3ijgKrdzFE/ZbrrI34elboUmSrfJ1qs5Sp02JAGINnJ+H8M1ZPDy/+1MuyIFbdx1EwtpVPD34= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747235692; c=relaxed/simple; bh=F4Te9Lur/xFSTBMdpmhCbCj26jVQpoawEm3xShr4VJE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=NEWQJRqs9PpHt9iOOZWtwpNX/HQpng7DUrdkXuFxDBf8orTwdt2rnGMkkvCK9D13EGY5nhpL3dSoXdW5EcwNHn+Pt6bfFyQCfrpyl0jM3jRYQQv5hpoAZPQp4k50404XNfKnOAKhG+rEMEqTLCqAlM3xscol5Zc9zCFIswUa5SE= 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=GHVWe1sM; arc=none smtp.client-ip=192.198.163.17 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="GHVWe1sM" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1747235691; x=1778771691; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=F4Te9Lur/xFSTBMdpmhCbCj26jVQpoawEm3xShr4VJE=; b=GHVWe1sMv7Qj8jO2fAqivp+1jeDL2/PEw2BB5MDZlcHCJg9zgEVXbtgI u3WPIT7MnM9X5Qg0Ipns/f4Z4WqB38qpsMEl1HqQ9nlRbqztXoA4oZN/h ilBHGQl/PhY0v9Z5fgPLtQFEHouQlkQSNDVIQspcpTqkQM9dVGH4rUBh4 IJvmpLgQko092pRWL/IDDPRreTXCoAk0XyZoejrYDZ2s3zeDVtWVBISWj i+SEUht6rAfioNHLi3jap3Tf/RKxmyS9LzGRAzpNsiElxfABepU5MJ6K2 Y5D9j3CbrMsw8nFGO1+DA+w3rtJ0QW8skThp6xSO7RcjvHYSFHLdrVd0e Q==; X-CSE-ConnectionGUID: mvJaTH+4RkigJDLk8rZSNA== X-CSE-MsgGUID: JXn+umZ8RZynA76hCEkyyA== X-IronPort-AV: E=McAfee;i="6700,10204,11433"; a="49072773" X-IronPort-AV: E=Sophos;i="6.15,288,1739865600"; d="scan'208";a="49072773" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 May 2025 08:14:46 -0700 X-CSE-ConnectionGUID: ZPSRUvmATVmhHNzzC6m1BA== X-CSE-MsgGUID: vN5sn9IBR5Ke/vVIvDfstQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,288,1739865600"; d="scan'208";a="142939174" Received: from kanliang-dev.jf.intel.com ([10.165.154.102]) by fmviesa005.fm.intel.com with ESMTP; 14 May 2025 08:14:46 -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, Kan Liang , Vineet Gupta , linux-snps-arc@lists.infradead.org Subject: [PATCH V2 10/15] arc/perf: Remove driver-specific throttle support Date: Wed, 14 May 2025 08:13:56 -0700 Message-Id: <20250514151401.2547932-11-kan.liang@linux.intel.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20250514151401.2547932-1-kan.liang@linux.intel.com> References: <20250514151401.2547932-1-kan.liang@linux.intel.com> Precedence: bulk X-Mailing-List: linux-perf-users@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. 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