From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f74.google.com (mail-oa1-f74.google.com [209.85.160.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 10F9619CC22 for ; Wed, 29 Jan 2025 08:51:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738140668; cv=none; b=BXN8dAN2uqFs+4GvzNw+C2bcW9BY4nj/Mo2nP9d5gLziQ1mH5CebDzHw9wlJ9JLLOL0jNJTy+xrPN6v8B73elQIOVAR7PAn5N66aF5avrZ/V6Sc9ISngpK5zsntZmhruQkFy2Z9nicfp40jRI7UiKSl7lOzNlJ0pQAQ6A1/STO8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738140668; c=relaxed/simple; bh=EbK8CG3zwHwysZnvAo3A2+mZ2myHIVEiysKYTIFeDEM=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=eQ3ace572WkU7+KPLHCH+iKqeCXAf+KBVCOTgMUg2vZq8lIB/obJi9R3mR9YPIkXNxDnoEcNJ99rWOjDzYSUyZKDe1rVm4hALsfbI/tUDJOnBTQ50eTYjwHD4BRG7qt0Jv1HyU0Fc9ysw2ho1ELF5iywpw9Hug3+mL0W4EP2ZBg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--keyz.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=4b42LYYs; arc=none smtp.client-ip=209.85.160.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--keyz.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="4b42LYYs" Received: by mail-oa1-f74.google.com with SMTP id 586e51a60fabf-2a3b2770597so7534753fac.0 for ; Wed, 29 Jan 2025 00:51:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1738140666; x=1738745466; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=EbK8CG3zwHwysZnvAo3A2+mZ2myHIVEiysKYTIFeDEM=; b=4b42LYYsEVMfzv+2DTojEFqbIeRiRxQCi6GRmIkehbtUqlvh7In/5BH1wCXnvdPARz sXmZG3cpAUXEUjeBLMZE03u1gJKmJ/3ZJi1l7vK4xky8aYxTc0WT4vAWdRbM6lmO8Q2i INP1lSebLwIKm1v/W1rxhRJEGD05TZPota5cW4kB8LVgriKEbKxjtL0czYnBxEG7YPl3 0CwPKKWXgbq4BtWorh4HQKkQxgOmdDND3Mb6wf9RJT+lndG3j+QPaiF9SQN/6wgQW0n3 vh7I+g7Ky+J8DMJGGSar2PNe64ivT8ap7boymI1hXpuDBBQsSnOSaOQ8PNFeDsDuO31s XHyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1738140666; x=1738745466; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=EbK8CG3zwHwysZnvAo3A2+mZ2myHIVEiysKYTIFeDEM=; b=BtT/FvtooTmIAR0R7ioLCN+edaYBntMkORPjnaIsUpFz/x33UOQdc75DYB4V3YRGnp h50nDJwno6SDzJdzHOHXnUHdfMnoOLRuqSdD8Euc+Hi67qMWcaj5iMrh4LnNryPYYf+L 0wuTqF1919HmyEOKvOP6sMdEvNCLXSwdn3/T5yR6hz0ahV5ngZ4rjQBXJGpFCoOkKsY0 WGxMntuZin50khPvpHfVlGxQ8zly8i/O2jaPZWzGHEGeD+RAj9n/yCXzn1Yk6oUBH0Bm AZUs/zL4enA08+f3uAjT5VaaRUrtvEMJztqHPZ28ACQGDDqARkhZkDaYypv+kTRiQd0o yjyw== X-Forwarded-Encrypted: i=1; AJvYcCUeImKWVhWkmgRhpHrFCnbNzxPvkPCZp2W9xYjwgY+x4UBCYtjtsbr6yoJBZeZGY8l7eVilIY94aihTz8g=@vger.kernel.org X-Gm-Message-State: AOJu0Yy8tQrT0W7UCOAQPQU7LxZ8qJdHgziA1GZluDqYUS/Plje84KQQ X1FEZYF+mA6re4myxaTdwK5a1OoIgyCbuQ20415x+/oys6prQm/ZpNj5qrZpEPZJG2eWcQ== X-Google-Smtp-Source: AGHT+IFYeVGRIDbBJSoDxW1qLEQa6txtsI65vSSYVM7r1a1CEXTC692rDv36eVRGCThjx3Uetdze5Vm2 X-Received: from oabpp13.prod.google.com ([2002:a05:6870:9d0d:b0:297:19ee:9d16]) (user=keyz job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6871:5cc:b0:2a7:d345:c0bb with SMTP id 586e51a60fabf-2b32f261922mr1412517fac.27.1738140666051; Wed, 29 Jan 2025 00:51:06 -0800 (PST) Date: Wed, 29 Jan 2025 16:51:02 +0800 In-Reply-To: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.48.1.262.g85cc9f2d1e-goog Message-ID: <20250129085102.1055165-1-keyz@google.com> Subject: Re: [PATCH v2] cpuidle: psci: Add trace for PSCI domain idle From: Keita Morisaki To: christian.loehle@arm.com Cc: aarontian@google.com, daniel.lezcano@linaro.org, keyz@google.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-trace-kernel@vger.kernel.org, lpieralisi@kernel.org, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, rafael@kernel.org, rostedt@goodmis.org, sudeep.holla@arm.com, yimingtseng@google.com Content-Type: text/plain; charset="UTF-8" > > Yes, psci_domain_idle_(enter|exit) are not meant to replace cpu_idle nor a > > variant of it. It's new and different events that provide finer=grained info. > I mentioned it because it means it doesn't benefit from cpu_idle tooling > directly, which is slightly odd, but fine with me. I might not fully understand your comments. Do you mean that even mentioning cpu_idle in the commit message does not feel right to you, or utilizing cpu_idle by exposing the determined state instead of adding new trace events is the right direction?