From: sashiko-bot@kernel.org
To: "Koichiro Den" <den@valinux.co.jp>
Cc: linux-pci@vger.kernel.org
Subject: Re: [PATCH v5 14/17] PCI: rcar-gen4: Route Root Port PME and bandwidth notifications
Date: Tue, 20 Oct 2026 09:56:42 +0000 [thread overview]
Message-ID: <sashiko-outbox-178774@kernel.org> (raw)
In-Reply-To: <20261020031049.969895-15-den@valinux.co.jp>
> 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.
>
> 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.
>
> Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
> Signed-off-by: Koichiro Den <den@valinux.co.jp>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261020031049.969895-1-den@valinux.co.jp?part=14
next prev parent reply other threads:[~2026-10-20 9:56 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-20 3:10 [PATCH v5 00/17] PCI: rcar-gen4: Recover from link down and route Root Port interrupts Koichiro Den
2026-10-20 3:10 ` [PATCH v5 01/17] PCI: dwc: Add Renesas to the RAS DES VSEC list Koichiro Den
2026-10-20 8:09 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 02/17] PCI: dwc: Factor out the PORT_LINK_DEBUG1 link-up check Koichiro Den
2026-10-20 8:10 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 03/17] PCI: rcar-gen4: Check live link status in link_up() Koichiro Den
2026-10-20 8:12 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 04/17] dt-bindings: PCI: rcar-gen4: Add optional "aer" interrupt for R-Car Gen4 SoCs Koichiro Den
2026-10-20 8:13 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 05/17] PCI: dwc: Export dw_handle_msi_irq() Koichiro Den
2026-10-20 8:14 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 06/17] PCI: rcar-gen4: Move deinitialization helpers before SoC initialization Koichiro Den
2026-10-20 8:20 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 07/17] PCI: rcar-gen4: Assert resets when Gen5 SoC PHY initialization fails Koichiro Den
2026-10-20 8:22 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 08/17] PCI: rcar-gen4: Separate hardware setup from resource acquisition Koichiro Den
2026-10-20 8:23 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 09/17] PCI: rcar-gen4: Add Root Port reset support Koichiro Den
2026-10-20 8:46 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 10/17] PCI: dwc: Free the MSI domain after the host .deinit() callback Koichiro Den
2026-10-20 3:54 ` Shawn Lin
2026-10-20 6:41 ` Koichiro Den
2026-10-20 7:00 ` Shawn Lin
2026-10-20 7:21 ` Koichiro Den
2026-10-20 8:51 ` sashiko-bot
2026-10-20 11:47 ` Geert Uytterhoeven
2026-10-20 13:45 ` Koichiro Den
2026-10-20 3:10 ` [PATCH v5 11/17] PCI: rcar-gen4: Take over the iMSI-RX interrupt Koichiro Den
2026-10-20 9:02 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 12/17] PCI: rcar-gen4: Recover the Root Port on link down Koichiro Den
2026-10-20 9:27 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 13/17] PCI: rcar-gen4: Route Root Port AER to a virtual Root Port IRQ Koichiro Den
2026-10-20 9:50 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 14/17] PCI: rcar-gen4: Route Root Port PME and bandwidth notifications Koichiro Den
2026-10-20 9:56 ` sashiko-bot [this message]
2026-10-20 3:10 ` [PATCH v5 15/17] arm64: dts: renesas: r8a779f0: Describe the PCIe AER interrupts Koichiro Den
2026-10-20 9:58 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 16/17] arm64: dts: renesas: r8a779g0: " Koichiro Den
2026-10-20 9:59 ` sashiko-bot
2026-10-20 3:10 ` [PATCH v5 17/17] arm64: dts: renesas: r8a779h0: Describe the PCIe AER interrupt Koichiro Den
2026-10-20 10:00 ` sashiko-bot
2026-10-20 8:03 ` [PATCH v5 00/17] PCI: rcar-gen4: Recover from link down and route Root Port interrupts Geert Uytterhoeven
2026-10-20 8:45 ` Koichiro Den
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