From nobody Tue Dec 16 22:31:31 2025 Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) (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 7886D219E8; Thu, 29 May 2025 00:14:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.97.179.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748477691; cv=none; b=LUtzCBzfRZ6eVXxWbzw97TeH/MDVouBsiwwW5TMYQTP5zUri/aUP8oaCYQZ4pBU2kXS+YXTpxw9UMViI7VOVFlXEeQ5yS/0zD7wWlB5bRFCRMTapHUhMkB9r89NOqqcaXkBWW1fPT6fRn4TF6YSdReslVnu9MQTCkX5VEdrnTNc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748477691; c=relaxed/simple; bh=jcSTdB8cYTgK7fXz9q7Lo3F6qxZZiKZrm/tD702Jhbc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lg+FriAaDgssYgEkw8U4yp8ObVOTjKd0JXl75UZdSwg6YBgFR3L8AecT2Wx6P53cyxjDSHzqbpsdooXLTreboMZq00IOI7w5DeJfwaWzF+gyyF40a7OhfCw/lDJP1Yw6tw3YTn0aiux3YhVuvL1CGffw2Qa+ULjKLHOfYM4Vkho= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com; spf=pass smtp.mailfrom=igalia.com; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b=kEgaKK/Q; arc=none smtp.client-ip=213.97.179.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=igalia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b="kEgaKK/Q" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=sJHUUz+5d/oc9AFid9FJLsG4+QoSnBTtVC2wDx4OwSA=; b=kEgaKK/QRe4PmNcW+bdMI++Y56 TsYxIf0T0clOK4nlwWGsFxvC9d9rTqiWHICY50sIW/FO4UuaN6t1Q6cLE5daiUcxDQ/wz7BtTTRkL qSTm+q/ZUPydRjzPspDQ4b1dvHX2zYxgNeCIrlBzltJqERvXXVYyUmtbYjCtOlBaAtHV+GXE8RG5n ZO1Lqc5q9LXHB5Id8nGSo3GYkIIp00uGNW98PG1eiUZNLDcWHyTn9yivvOmmCHojcAnbUQrzRRkSw LRiiAxOqhqYeyQfGrsvPfCrFlMnPBXOZ0KeKkYMVtLL2Jam4I3hBhR41By3p+vAzg0872HvNlDmOj 0BRUi/xA==; Received: from [58.29.143.236] (helo=localhost) by fanzine2.igalia.com with utf8esmtpsa (Cipher TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1uKQuw-00EZy4-2f; Thu, 29 May 2025 02:14:43 +0200 From: Changwoo Min To: lukasz.luba@arm.com, rafael@kernel.org, len.brown@intel.com, pavel@kernel.org Cc: christian.loehle@arm.com, tj@kernel.org, kernel-dev@igalia.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Changwoo Min Subject: [PATCH 11/11] PM: EM: Notify an event when the performance domain changes. Date: Thu, 29 May 2025 09:13:15 +0900 Message-ID: <20250529001315.233492-12-changwoo@igalia.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250529001315.233492-1-changwoo@igalia.com> References: <20250529001315.233492-1-changwoo@igalia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Send an event to userspace when a performance domain is created or deleted, or its energy model is updated. Signed-off-by: Changwoo Min --- kernel/power/energy_model.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c index 6ed847046a2f..5764821faef3 100644 --- a/kernel/power/energy_model.c +++ b/kernel/power/energy_model.c @@ -352,6 +352,8 @@ int em_dev_update_perf_domain(struct device *dev, em_table_free(old_table); =20 mutex_unlock(&em_pd_mutex); + + em_notify_pd_update(pd); return 0; } EXPORT_SYMBOL_GPL(em_dev_update_perf_domain); @@ -675,6 +677,8 @@ int em_dev_register_perf_domain(struct device *dev, uns= igned int nr_states, list_add_tail(&dev->em_pd->node, &em_pd_list); mutex_unlock(&em_pd_list_mutex); =20 + em_notify_pd_create(dev->em_pd); + return ret; } EXPORT_SYMBOL_GPL(em_dev_register_perf_domain); @@ -697,6 +701,8 @@ void em_dev_unregister_perf_domain(struct device *dev) list_del_init(&dev->em_pd->node); mutex_unlock(&em_pd_list_mutex); =20 + em_notify_pd_delete(dev->em_pd); + /* * The mutex separates all register/unregister requests and protects * from potential clean-up/setup issues in the debugfs directories. --=20 2.49.0