From mboxrd@z Thu Jan 1 00:00:00 1970 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 4513213A892; Thu, 15 Feb 2024 19:56:58 +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=1708027020; cv=none; b=ZfaXDKbNslo2sJX/RT9dHjQ3kAqKmg4KMcPcqOdkTVRijsN9/v8j4bg02vWIr27n7ZUH3yJvVekRKY31YckAHUbyKeyMTF+T6mIqT8tvTO1vHFbQCSwxnoOyJmmzEhwcZZqBB3TDKyOUMjARN64ePcFfYAD8JBT3wbSz1Rp4gkE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708027020; c=relaxed/simple; bh=wKptZ5+eJl5ci++NzOa9RSvAO6eRqLXG+XKGBuxEkrk=; h=Date:From:To:Subject:Cc:In-Reply-To:References:MIME-Version: Message-ID:Content-Type; b=KzIPNAczIdS7yEACb8zJOw7Ub8SBBWt4HshlD/2SDVRoqNG0n1WiYpZ1d2BAzSdVKKYFBrOviLiCcaJziOm02VBb5qP871lNf15fYfMYYGLOZqRjEI+gcTLgevOI16T2atn3STAr4y7pkF/Kv8rbcVr3NNAGCGx6EHgD1vaaT1Q= 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=4Oi28e5F; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=ND6QAQo6; 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="4Oi28e5F"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="ND6QAQo6" Date: Thu, 15 Feb 2024 19:56:56 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1708027017; 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=Gp8pRjTfv1QNSZrrpl5DYHm5iswbLLmWrXHSIq3iwHU=; b=4Oi28e5FLkAQ0DmzENQvaXxtLWKqvpZLEeN7mBd4A00w1lVNCofdNrG/Ac4Eev1crsaDib Xgu/LSIQ7HEoDuY6XzSdtbHqE6cKBnsRPnMAxVpWhLaUFMXxRqf/3P60Zyj/wcHkdIN+X9 3RyeYwiUoEnGmX1tMy536pTsYZvUtQ1/J3TNg6pOey6/8smDtagUUXXH0hQ84amC43lGbg st4R/HyygTWtVetgZPzDycy6HzeKrsmroJeB2FBPP3zyNj4Ptry3OLilQDP55uBMwg+COD ZgIjjRQVtsD6pj6ymH2WhPq1pD/3+yzl/Yly+yEABMq8oM1McQ1RrgChbocStA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1708027017; 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=Gp8pRjTfv1QNSZrrpl5DYHm5iswbLLmWrXHSIq3iwHU=; b=ND6QAQo645tw4wiL8wFvLGq6ti3GCvCAvJixR+G2glfA+4HuxioDCoE7Zv7Hn9uJPFGXJx g8GKH/sol8YwClBg== From: "tip-bot2 for Thomas Gleixner" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: irq/msi] genirq/msi: Provide MSI_FLAG_PARENT_PM_DEV Cc: Thomas Gleixner , Anup Patel , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20240127161753.114685-14-apatel@ventanamicro.com> References: <20240127161753.114685-14-apatel@ventanamicro.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <170802701641.398.9865476811780802677.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: 7bit The following commit has been merged into the irq/msi branch of tip: Commit-ID: 9bbe13a5d414a7f8208dba64b54d2b6e4f7086bd Gitweb: https://git.kernel.org/tip/9bbe13a5d414a7f8208dba64b54d2b6e4f7086bd Author: Thomas Gleixner AuthorDate: Sat, 27 Jan 2024 21:47:41 +05:30 Committer: Thomas Gleixner CommitterDate: Thu, 15 Feb 2024 17:55:41 +01:00 genirq/msi: Provide MSI_FLAG_PARENT_PM_DEV Some platform-MSI implementations require that power management is redirected to the underlying interrupt chip device. To make this work with per device MSI domains provide a new feature flag and let the core code handle the setup of dev->pm_dev when set during device MSI domain creation. Signed-off-by: Thomas Gleixner Signed-off-by: Anup Patel Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/20240127161753.114685-14-apatel@ventanamicro.com --- include/linux/msi.h | 2 ++ kernel/irq/msi.c | 5 ++++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/include/linux/msi.h b/include/linux/msi.h index 36ba6a0..26d07e2 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -554,6 +554,8 @@ enum { MSI_FLAG_FREE_MSI_DESCS = (1 << 6), /* Use dev->fwnode for MSI device domain creation */ MSI_FLAG_USE_DEV_FWNODE = (1 << 7), + /* Set parent->dev into domain->pm_dev on device domain creation */ + MSI_FLAG_PARENT_PM_DEV = (1 << 8), /* Mask for the generic functionality */ MSI_GENERIC_FLAGS_MASK = GENMASK(15, 0), diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index 07e9daa..f90952e 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -845,8 +845,11 @@ static struct irq_domain *__msi_create_irq_domain(struct fwnode_handle *fwnode, domain = irq_domain_create_hierarchy(parent, flags | IRQ_DOMAIN_FLAG_MSI, 0, fwnode, &msi_domain_ops, info); - if (domain) + if (domain) { irq_domain_update_bus_token(domain, info->bus_token); + if (info->flags & MSI_FLAG_PARENT_PM_DEV) + domain->pm_dev = parent->pm_dev; + } return domain; }