linux-kernel - Re: [PATCH v18 00/15] PCI: EP: Add RC-to-EP doorbell with platform MSI controller

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Message-ID: <4oyhjtoedh66sdyhebltwskskksy5ask4avvuekoxbckibdxmb@bqwe72b5q4en>
Date: Sun, 11 May 2025 13:54:59 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: Frank Li <Frank.Li@....com>, 
	Kishon Vijay Abraham I <kishon@...nel.org>, "Rafael J. Wysocki" <rafael@...nel.org>, 
	Anup Patel <apatel@...tanamicro.com>, Marc Zyngier <maz@...nel.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Danilo Krummrich <dakr@...nel.org>, 
	Krzysztof Wilczyński <kw@...ux.com>, Bjorn Helgaas <bhelgaas@...gle.com>, 
	Arnd Bergmann <arnd@...db.de>, Shuah Khan <shuah@...nel.org>, 
	Richard Zhu <hongxing.zhu@....com>, Lucas Stach <l.stach@...gutronix.de>, 
	Lorenzo Pieralisi <lpieralisi@...nel.org>, Rob Herring <robh@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
	Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, 
	Fabio Estevam <festevam@...il.com>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Niklas Cassel <cassel@...nel.org>, dlemoal@...nel.org, 
	jdmason@...zu.us, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-pci@...r.kernel.org, linux-kselftest@...r.kernel.org, 
	imx@...ts.linux.dev, devicetree@...r.kernel.org
Subject: Re: [PATCH v18 00/15] PCI: EP: Add RC-to-EP doorbell with platform
 MSI controller

On Thu, May 08, 2025 at 07:26:31PM +0200, Thomas Gleixner wrote:
> On Mon, Apr 14 2025 at 14:30, Frank Li wrote:
> > This patches add new API to pci-epf-core, so any EP driver can use it.
> >       platform-msi: Add msi_remove_device_irq_domain() in platform_device_msi_free_irqs_all()
> >       irqdomain: Add IRQ_DOMAIN_FLAG_MSI_IMMUTABLE and irq_domain_is_msi_immutable()
> >       irqchip/gic-v3-its: Set IRQ_DOMAIN_FLAG_MSI_IMMUTABLE for ITS
> >       dt-bindings: PCI: pci-ep: Add support for iommu-map and msi-map
> >       irqchip/gic-v3-its: Add support for device tree msi-map and msi-mask
> 
> I applied the interrupt related changes in the tip tree. They are on a
> seperate rc1 based branch and contain no other changes so that they can
> be pulled into the PCI tree as prerequisite for the actual endpoint
> changes. This can be pulled from the following tag:
> 
>    git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-platform-msi-05-08-25
> 

Thanks! I'd like to have a closer look at the endpoint patches and want to try
them out on some hardware before merging. Unfortunately, this cannot happen for
the next two weeks as I'll be on vacation.

So please take the interrupt changes for the upcoming cycle and we will deal
with endpoint patches after 6.16-rc1. The major blocker for this series has been
the interrupt related changes. I'm so glad that it got resolved finally.

Frank, thanks for your persistence!

- Mani

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