linux-kernel - Re: [PATCH v8 00/17] RISC-V: ACPI: Add external interrupt controller support

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Message-ID: <ZrlgVUXC_dCW9ISM@sunil-laptop>
Date: Mon, 12 Aug 2024 06:37:33 +0530
From: Sunil V L <sunilvl@...tanamicro.com>
To: "Rafael J . Wysocki" <rafael@...nel.org>
Cc: Will Deacon <will@...nel.org>, Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Len Brown <lenb@...nel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Anup Patel <anup@...infault.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Samuel Holland <samuel.holland@...ive.com>,
	Robert Moore <robert.moore@...el.com>,
	Conor Dooley <conor.dooley@...rochip.com>,
	Haibo Xu <haibo1.xu@...el.com>,
	Andrew Jones <ajones@...tanamicro.com>,
	Atish Kumar Patra <atishp@...osinc.com>,
	Drew Fustini <dfustini@...storrent.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-riscv@...ts.infradead.org, linux-acpi@...r.kernel.org,
	acpica-devel@...ts.linux.dev
Subject: Re: [PATCH v8 00/17] RISC-V: ACPI: Add external interrupt controller
 support

On Mon, Aug 12, 2024 at 06:29:12AM +0530, Sunil V L wrote:
> This series adds support for the below ECR approved by ASWG.
> 1) MADT - https://drive.google.com/file/d/1oMGPyOD58JaPgMl1pKasT-VKsIKia7zR/view?usp=sharing
> 
> The series primarily enables irqchip drivers for RISC-V ACPI based
> platforms.
> 
> The series can be broadly categorized like below. 
> 
> 1) PCI ACPI related functions are migrated from arm64 to common file so
> that we don't need to duplicate them for RISC-V.
> 
> 2) Added support for re-ordering the probe of interrupt controllers when
> IRQCHIP_ACPI_DECLARE is used.
> 
> 3) To ensure probe order between interrupt controllers and devices,
> implicit dependency is created similar to when _DEP is present.
> 
> 4) ACPI support added in RISC-V interrupt controller drivers.
> 
> Changes since v7:
> 	1) Updated commit messages as per feedback from Bjorn on patches 2, 3 and 8.
> 	2) Addressed Anup Patel's comments.
> 	3) Added Tested-by tag from Björn Töpe which I missed to add in previous version.
> 	4) Rebased to 6.11-rc3 and updated the RB tags from Anup.
> 
> Changes since v6:
> 	1) Update to commit message/code comments as per feedback from Bjorn.
> 	2) Rebased to 6.11-rc1.
> 
> Changes since v5:
> 	1) Addressed feedback from Thomas.
> 	2) Created separate patch for refactoring DT code in IMSIC
> 	3) Separated a fix in riscv-intc irqchip driver and sent
> 	   separately. This series depends on that patch [1].
> 	4) Dropped serial driver patch since it depends on Andy's
> 	   refactoring series [2]. RISC-V patches will be sent
> 	   separately later once Andy series get accepted.
> 	5) Rebased to v6.10-rc1 which has AIA DT patches.
> 	6) Updated tags.
> 
> Changes since RFC v4:
> 	1) Removed RFC tag as the RFCv4 design looked reasonable.
> 	2) Dropped PCI patch needed to avoid warning when there is no MSI
> 	   controller. This will be sent later separately after the
> 	   current series.
> 	3) Dropped PNP handling of _DEP since there is new ACPI ID for
> 	   generic 16550 UART. Added the serial driver patch instead.
> 	4) Rebased to latest linux-next.
> 	5) Reordered/squashed patches in the series
> 
> Changes since RFC v3:
> 	1) Moved to _DEP method instead of fw_devlink.
> 	2) PLIC/APLIC driver probe using namespace devices.
> 	3) Handling PNP devices as part of clearing dependency.
> 	4) Rebased to latest linux-next to get AIA DT drivers.
> 
> Changes since RFC v2:
> 	1) Introduced fw_devlink for ACPI nodes for IRQ dependency.
> 	2) Dropped patches in drivers which are not required due to
> 	   fw_devlink support.
> 	3) Dropped pci_set_msi() patch and added a patch in
> 	   pci_create_root_bus().
> 	4) Updated pnp_irq() patch so that none of the actual PNP
> 	   drivers need to change.
> 
> Changes since RFC v1:
> 	1) Abandoned swnode approach as per Marc's feedback.
> 	2) To cope up with AIA series changes which changed irqchip driver
> 	   probe from core_initcall() to platform_driver, added patches
> 	   to support deferred probing.
> 	3) Rebased on top of Anup's AIA v11 and added tags.
> 
Hi Rafael,

Hope you are back this week!.

This series has spent quite a bit of time now on the list. As you are
aware, few clarifications like _PIC codes are also done now. There is
no major change after you had agreed for the design. So, can this be
considered for the next release please?

Thanks!
Sunil