From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A5A97C433F5 for ; Tue, 15 Feb 2022 15:54:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nEXZwuuZq+O4s3qmZmM2g/U08l5LnEaiI+NvUGPHfPw=; b=OS7iwm5MJwqpM+ SoxVOLI6/gkPgsa/PWmzMMKD9mMIm66+zU2nnnGKJRC4QTKYt60mRUKwuTicUPgY0Im7cnDS6m3j+ f4x4W2ogCs68902vMIAG8F+WIbS/aATkvzMrMNdsf+zQQIeOWZbTzKVud1btWUBKddtjdEkNoXfPJ 1L1NpjcjoBzJtOtD/fFKdLWpRASdKEWblk8ze6hzcCVenjPSG1cWScwMUHz2eTxoR8y1IQ434BYn8 gY5Du8PGNzpV0Nrwk+DtL6R5J4y76bebPrQhI/D4iLmA6lduPbSmKl1alr56MMv45FCpWytNTdUl1 /mMvOHIDXC7wLTV1BaiA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nK09J-003Sxh-Dv; Tue, 15 Feb 2022 15:53:53 +0000 Received: from ams.source.kernel.org ([145.40.68.75]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJzmy-003Hqy-0g for linux-riscv@lists.infradead.org; Tue, 15 Feb 2022 15:30:49 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 7D81BB81AF2; Tue, 15 Feb 2022 15:30:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BCD90C340F1; Tue, 15 Feb 2022 15:30:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644939045; bh=D+Ib7wkm+pUgHIFpFkgZMNVJA3CmXTMDtP5x7u0Q6fc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=owPH6hmPWgvIdleQTPHeC+UH3qazJQhmAMW0/iHVsMrNXy6srvK6bNgPucWwa8P/h 7SPgL3FJvp+riQ28IRFTOuC/jW5ikNphqQ3wM3Zluh3ocx4iD7uRJ3lejB5Etk9qTZ 9t4lJ2NagG2ivfdy6ElShWKv3khXkeccOmqBfwQ3JkwpH6pEuooRKrHkpv8QElJQjo JXABGCdDPwIijvOOGNNu6S/SZAlA/euuNZr32qmazsMoCAxuFXgMVBlVfqw8KxnEFt zP1LAKG826EQJV8V3Uf9eYQ9jGpmR9g3OFkIHQYkOglLhNDOPKz001AG/Y6YuCUASn x4r+s1H0r/NMg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Guo Ren , Anup Patel , Marc Zyngier , Palmer Dabbelt , Samuel Holland , Thomas Gleixner , Sasha Levin , paul.walmsley@sifive.com, aou@eecs.berkeley.edu, linux-riscv@lists.infradead.org Subject: [PATCH AUTOSEL 5.4 04/17] irqchip/sifive-plic: Add missing thead, c900-plic match string Date: Tue, 15 Feb 2022 10:30:24 -0500 Message-Id: <20220215153037.581579-4-sashal@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220215153037.581579-1-sashal@kernel.org> References: <20220215153037.581579-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220215_073048_280394_AE4F3E6C X-CRM114-Status: GOOD ( 12.65 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Guo Ren [ Upstream commit 1d4df649cbb4b26d19bea38ecff4b65b10a1bbca ] The thead,c900-plic has been used in opensbi to distinguish PLIC [1]. Although PLICs have the same behaviors in Linux, they are different hardware with some custom initializing in firmware(opensbi). Qute opensbi patch commit-msg by Samuel: The T-HEAD PLIC implementation requires setting a delegation bit to allow access from S-mode. Now that the T-HEAD PLIC has its own compatible string, set this bit automatically from the PLIC driver, instead of reaching into the PLIC's MMIO space from another driver. [1]: https://github.com/riscv-software-src/opensbi/commit/78c2b19218bd62653b9fb31623a42ced45f38ea6 Signed-off-by: Guo Ren Cc: Anup Patel Cc: Marc Zyngier Cc: Palmer Dabbelt Cc: Samuel Holland Cc: Thomas Gleixner Tested-by: Samuel Holland Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20220130135634.1213301-3-guoren@kernel.org Signed-off-by: Sasha Levin --- drivers/irqchip/irq-sifive-plic.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c index 7cd7b140dfe97..9dad45d928bfe 100644 --- a/drivers/irqchip/irq-sifive-plic.c +++ b/drivers/irqchip/irq-sifive-plic.c @@ -313,3 +313,4 @@ static int __init plic_init(struct device_node *node, IRQCHIP_DECLARE(sifive_plic, "sifive,plic-1.0.0", plic_init); IRQCHIP_DECLARE(riscv_plic0, "riscv,plic0", plic_init); /* for legacy systems */ +IRQCHIP_DECLARE(thead_c900_plic, "thead,c900-plic", plic_init); /* for firmware driver */ -- 2.34.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv