From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 7F2AF2FD696; Thu, 6 Aug 2026 02:44:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785984289; cv=none; b=tq9hyPjwBBg+CCGt96auF31oXXfJrkGy7UCXxSSQ28etw4lwa46eryxso2LfFa7RXnXV6AGwFcYFQce+Lhnv9UTlcXs8gmCSvJXI+ZhMvJ3YOzDkS35PwIfGk9RZIKkESdaWSSAx0AQ9+lOz8YrtuVTOX6sJG9D7ATpY67dnUyY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785984289; c=relaxed/simple; bh=dlqyYmVKeqyVIUQmPyqZFyzV7xRFXPloCZDvdepy43U=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References: MIME-Version:Content-Type; b=MpKIiwaRzYFxQjYgGOjigp01z7Ml5DvkZTZuXQ7cF/YHSthwE1x6oC/5Tsb8he8xFhv9p+rCGTgl8s9/cKNSuhOg/xcBpgt3cSq2ZRT3vrQ5LO2PmUWeOIF5yRleyeMpE9JvdBKKsGfcmylH6LLY/myV/b4bCF0m9+qnbO5Yx8E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XqiB5cci; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="XqiB5cci" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6671C1F000E9; Thu, 6 Aug 2026 02:44:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785984288; bh=CiA7EOsZf1u31c7ZK2OS7J7IWSJm/ecqwp0+2UUVfkM=; h=Date:From:To:cc:Subject:In-Reply-To:References; b=XqiB5cciERKd1+gcdfpX74rbCDBckILJJE9lwPZPccRKQgjift/VpL1v0JTXaGGzu 6KAM29U4nZ7sjk7OrvdBVIlxikf/Wabx12MbVUWNxvEXZBduyl98FTw4aGEew376kf JV6qfQ0Gdf5jmBqw6OyUfoDj8BmjP7Mb2C5E1Ucprv8XsMG6hfq0zp9GOqmLgY+Qwq Dlhkkc/+ByT4ikQtiBKDFS4XQwWzHM9r5ASJJIGAHFpcMZo89bbQP+WmKmdbCfl+Ch 89Ynv1386dJqJPTrM+y5+RMX7Mbbg1f1vwYjAF9JpyADCvNaLfY5oyGFIsvtasN2OW 5fzeDubkwkeUw== Date: Wed, 5 Aug 2026 20:44:46 -0600 (MDT) From: Paul Walmsley To: Peixin Xie cc: Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Yixun Lan , Sudeep Holla , Oza Pawandeep , Will Deacon , "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, spacemit@lists.linux.dev, stable@vger.kernel.org, Sunil V L , Huisong Li Subject: Re: [PATCH v3] riscv: acpi: Handle LPI architectural context loss flags In-Reply-To: <20260803-riscv-acpi-lpi-timer-v3-1-520fa13732f5@linux.spacemit.com> Message-ID: References: <20260803-riscv-acpi-lpi-timer-v3-1-520fa13732f5@linux.spacemit.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII On Mon, 3 Aug 2026, Peixin Xie wrote: > Commit 4785aa802853 ("cpuidle, ACPI: Evaluate LPI arch_flags for > broadcast timer") replaced the generic nonzero check for LPI > architectural context loss flags with arch_get_idle_state_flags(). > RISC-V does not implement the helper, so it falls back to the stub > that returns 0. Consequently, CPUIDLE_FLAG_TIMER_STOP is not set when > an LPI state loses the hart timer context, preventing cpuidle from > using a broadcast timer for that state. > > Implement the RISC-V helper and map the hart timer context loss flag > to CPUIDLE_FLAG_TIMER_STOP. > > Fixes: 4785aa802853 ("cpuidle, ACPI: Evaluate LPI arch_flags for broadcast timer") > Cc: stable@vger.kernel.org > Acked-by: Sudeep Holla > Reviewed-by: Yixun Lan > Reviewed-by: Sunil V L > Reviewed-by: Huisong Li > Signed-off-by: Peixin Xie Thanks, queued for v7.3. - Paul