Re: [PATCH v5 0/6] ISC-V AIA: APLIC and IMSIC irqchip framework integration

Anup Patel <[email protected]> Wed, 22 Jul 2026 12:15:03 +0530
Newsgroups org.infradead.lists.opensbi
Message-ID <CABBgwmuBunzno1a91wu3BkD24hxAP839EBe0A53ksiR-nYOP1Q@mail.gmail.com>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