From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792490204; b=LyzlcwpvSznmgEmqNRmDfPmNwCO6xPDQEgOhZSf5fupmymwfVpXyduF82NHGMO3gEz03 L0HBzgHoW7+VVo8blHYXNlEa7nowMxDgdKKyCJkX16emwoS08Kvh76uRMIiu/IfbeCc57 /I++KQGhUXrSfm2yzc3w4b4wylzMI6R3RR2puYGlVd+Kb9G9qIQ3I/BSRWBj7n18vUnwX 9NSB3jLil2WAskdjahXb/V+Lav+jiRcPypSULv6MuxM39RhIDsT/Ui4FT4YV8j81uaOZn ikDx/+SkcSQgq73uc4ItFAz92j9k+1lI/sktxbGaYGutTz2z8/FgUmtENHsc1BncR/Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792490204; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=yd2p7uQ1dCCzZi7Dub4/Yb4C94mgDTDe1xo+4n6yuig=; b=gk12WCfYiKrXsZUtQu6qjlEFZztZufZFM+3Ljb+SalX7nOu+EaXSm26Q30hO8ERjTqDz PTY5sC4iIbCsn5faT2//HLqwtVUSbKLlsOeG/h7hkTzciNfRBzh+xLpObHKsWAwvL3WyT 4jZJ05TZ9G3nZSGgDnV+4r3o4dZ4StHAYBaIs6SMHgv8P59wS/axVJwXYmhdNDFYnJ6S/ tUO7nPiyHbsVzES1ygYW8XkBZxebGGluH6xib8uLxRAqBFW2bKdQ413ZOWTuR7Vkr/ky6 J9mUzx/cd6LMY3aFLiKl4m9PHa76Axc9n4qFKqAFrAPfyno8kjsXyjI22QVhZ9QUVZQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=F2B1IeJM; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CD9FD606A328 for ; Tue, 20 Oct 2026 09:56:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=F2B1IeJM Received: by smtp.kernel.org (Postfix) with ESMTPSA id 473531F000C7; Tue, 20 Oct 2026 09:56:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792490203; bh=yd2p7uQ1dCCzZi7Dub4/Yb4C94mgDTDe1xo+4n6yuig=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=F2B1IeJMKKI3DHzC42VuVhjkumsB543h50q0rlHjqWQN8yurBfATJMgbLUagm1d4Z KU3WLfz3b0L+Zc6oeJtmMujGJnttvdRV3vTAIGpuNcnPqQzrCPWKbiwY4RkbMgTE0z 82fXgr5ioO3YikgderwgLviqRUV3e4HVGyssTTOIPmwcI6wHT8iD01e9qxbkAwz+qq jcWB0omiXDrTjOQ7iudle7PLAGt0ypQpHR/mD8OYOKogaloZdl8qV6UJp7WFCJaPDE r4dOA4TEXaJ+vWavvo9SmVyCAd/sOBAApLDe4D01FgXKluRsMCHQe4xrRDLD+q8RYZ 4/UQT/biLSQ3Q== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v5 14/17] PCI: rcar-gen4: Route Root Port PME and bandwidth notifications Reply-To: sashiko-reviews@lists.linux.dev To: "Koichiro Den" Cc: linux-pci@vger.kernel.org In-Reply-To: <20261020031049.969895-15-den@valinux.co.jp> References: <20261020031049.969895-1-den@valinux.co.jp> <20261020031049.969895-15-den@valinux.co.jp> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 20 Oct 2026 09:56:42 +0000 X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > The Root Port's PME and link bandwidth notifications are reported in > PCIEINTSTS0 and routed to intreq_pcim_sub, the interrupt shared with the > integrated MSI receiver and the reset requests. Dispatch these > notifications to the virtual Root Port IRQ from the "msi" IRQ handler > after handling any pending iMSI-RX interrupts. This keeps Root Port > service handling out of the path between the reset-request check and > the iMSI-RX status reads. The existing dispatcher rechecks reset requests > before invoking the port services. >=20 > Enable the sources only while the Root Port IRQ is unmasked, and clear > the MSI-form latches in irq_ack together with the AER one. On an R-Car > S4 with the GIC ITS as MSI parent, a notification from a link retrain > now reaches the bandwidth controller service, which clears LnkSta.LBMS. >=20 > Reviewed-by: Marek Vasut > Signed-off-by: Koichiro Den Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261020031049.9698= 95-1-den@valinux.co.jp?part=3D14