From nobody Sun Dec 14 19:20:14 2025 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 36E8126A1DB; Wed, 21 May 2025 12:16:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747829764; cv=none; b=jhQvTWZRD8Cl7ZI3hl0Cenamu6NPLp+lo5KAqJRNfGh3GoR4Jza67V/QCclQ4gkHcoHc0ihvijpidaVc82op2Qyz+tYRJjHBQ2yNflSDHp2pBZVjsRuE4HHKqd3dUa0ho8wed+NvCtwJFhQTqtcwvcgwviSivr7zwXfNy6vTEig= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747829764; c=relaxed/simple; bh=YCNi7ylnYMNoYSNunmtOTDtwJsRsc+tITy15rGLeOtg=; h=Date:From:To:Subject:Cc:In-Reply-To:References:MIME-Version: Message-ID:Content-Type; b=eB7Q6VnVZR70DOo+NVf9DDol0f42f1jjVA26eu+H8QYu3QA4SKWZDUljqeIKO9CflFri4/4fUcfqrmPr2zq3acs97OZ23YepUm5dthuRfpg5JNuZ0JXGiSkuhyD0r5gS87Qeg9cBjr/K9qSF+8F2m0TsfrrHfTuVI1/nQcF90QE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=0PRj144i; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=0xb1bCnt; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="0PRj144i"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="0xb1bCnt" Date: Wed, 21 May 2025 12:16:00 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1747829761; 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=7yTz+tCrA4nfKckR7cOtLSianQ3CvYmJGJlgCGZrvMk=; b=0PRj144iuYImPnXYH+QL2JME6H7vZ4WJjAb3jY51Vkhii8bgtz7pqbh0GMgo+It6wBbPj1 osRXNEQZr8bn5Xa8UlZbhpKvrN1ZbIGZmzMaUml+jVPhXqxu3xVN/6uUhHYre3pjmQ/Ifu W/D1XM2F/jaVbu1vlbzxlgprppq3RphrUWi0fa3Dltc0IhwpepKWC8fVz0KoC7gVQhpKtu 0mTxbENaSkzqUQHGtGK7cZyvv0nGibFlYjKEXWm96KIchI92CLVwYV+0DPcP3Z/hRrlKRB rLJqPvQAWPak5cOj/5TWuAiGuz8844JUd31Y6gh2i/IEdFBwTQwRDCP2rGp6rg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1747829761; 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=7yTz+tCrA4nfKckR7cOtLSianQ3CvYmJGJlgCGZrvMk=; b=0xb1bCntAlruSnwDX9xM6NvZiX0Lm8udWlJvRmYq5b+xCAigtRnSx5kN9qTX2OK2ee9104 +Qm/XzIVYrBRsUDQ== From: "tip-bot2 for Kan Liang" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: perf/core] powerpc/perf: Remove driver-specific throttle support Cc: Kan Liang , "Peter Zijlstra (Intel)" , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20250520181644.2673067-7-kan.liang@linux.intel.com> References: <20250520181644.2673067-7-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 Message-ID: <174782976005.406.12846739060537202982.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The following commit has been merged into the perf/core branch of tip: Commit-ID: 954617a7ccfe12808c30668a204eccc4ca7f089f Gitweb: https://git.kernel.org/tip/954617a7ccfe12808c30668a204eccc4c= a7f089f Author: Kan Liang AuthorDate: Tue, 20 May 2025 11:16:34 -07:00 Committer: Peter Zijlstra CommitterDate: Wed, 21 May 2025 13:57:44 +02:00 powerpc/perf: Remove driver-specific throttle support 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 Signed-off-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/r/20250520181644.2673067-7-kan.liang@linux.in= tel.com --- arch/powerpc/perf/core-book3s.c | 6 ++---- arch/powerpc/perf/core-fsl-emb.c | 3 +-- 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3= s.c index 42ff4d1..8b00814 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -2344,12 +2344,10 @@ static void record_and_restart(struct perf_event *e= vent, unsigned long val, ppmu->get_mem_weight(&data.weight.full, event->attr.sample_type); data.sample_flags |=3D PERF_SAMPLE_WEIGHT_TYPE; } - if (perf_event_overflow(event, &data, regs)) - power_pmu_stop(event, 0); + perf_event_overflow(event, &data, regs); } else if (period) { /* Account for interrupt in case of invalid SIAR */ - if (perf_event_account_interrupt(event)) - power_pmu_stop(event, 0); + perf_event_account_interrupt(event); } } =20 diff --git a/arch/powerpc/perf/core-fsl-emb.c b/arch/powerpc/perf/core-fsl-= emb.c index d2ffcc7..7120ab2 100644 --- a/arch/powerpc/perf/core-fsl-emb.c +++ b/arch/powerpc/perf/core-fsl-emb.c @@ -635,8 +635,7 @@ static void record_and_restart(struct perf_event *event= , unsigned long val, =20 perf_sample_data_init(&data, 0, last_period); =20 - if (perf_event_overflow(event, &data, regs)) - fsl_emb_pmu_stop(event, 0); + perf_event_overflow(event, &data, regs); } }