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 D9846EB64D9 for ; Mon, 10 Jul 2023 09:43:55 +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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=BSCRjkOl+C4TKvtCdTFkkI/8aoeNiGLIksWI0TAuLxs=; b=moO+CgIA+5VzRN ptJyRzCARywZS+vb0yRW/+WKqyp3it0o/iBQb/crXg7UjfQ4gnveEzyEYaU3N6IKuFB06Yohg/xps naJQYMEkIyzH4bjQOobLGKaNJiw8xgFveIBhXMxT5FIs+lsk1cwNZJVPzwjtyRCb1qsp76RaQvLcS oM53NNl9PL+W88Coin1DNhgaat9u7UCONRFy0SA2kxQ3zQxqttnSJEy/3LgJ0HNCsQtxenniOmwnk RsYPBtphaAX/fZa/bQl4lmuyggi8TYKmh2BLxWu3p678SO+51lV9GC6tEK6ZOeadAzxOHJth/I7nN wzSZkGb6oaej5b1JiJSw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qInQu-00B55M-1A; Mon, 10 Jul 2023 09:43:52 +0000 Received: from mail-io1-xd32.google.com ([2607:f8b0:4864:20::d32]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qInQp-00B52S-2h for linux-riscv@lists.infradead.org; Mon, 10 Jul 2023 09:43:49 +0000 Received: by mail-io1-xd32.google.com with SMTP id ca18e2360f4ac-78372625badso205900539f.3 for ; Mon, 10 Jul 2023 02:43:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1688982225; x=1691574225; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=vWvqokmp7r4qpLb1zZr/K+Grf5K67mplcBtMET9ZvCc=; b=GuLbKlzbbm4+IQ1CE2fG/Sh0nv+IuRFqdVmE9lHlCnzZvCYcJ+fNJwYSnPgIzs+2LV 0IumeDVWpjLHWIAwGn8ZjRZ0r1R1/9vJRUN9TaFiD3zMurfzY5FyomAvdQdAftRrvSlC 72NrgVLlgcFtJggqHFSs+M/7UafyA2H+VYl6h8Yf78Hd3q4y5NOQ7MzGdq0rbQXFNHYo 1NHVjpf9Dy3tZWu5EWaO88c/SG2Q7jQlqvSa6npE0kZuPIOt2Vl03C8cwLz1ojq3wVsL lBJfnTyUc+N4gS4/WzoxhxqCjVAfxLl19R5srAdH//IlLNZqP53SsgxbqhNDM/8ZvGcJ eWrw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688982225; x=1691574225; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=vWvqokmp7r4qpLb1zZr/K+Grf5K67mplcBtMET9ZvCc=; b=VbhP2P5/C1/A76eAYVAA6Bfjg1ML2EJ8Bs3v75jkg5DAGFyGT11l3H8ASHNVkeU0H8 JFCiWntDZO5Jjebbf6GyO9C/JnHk+liOxzwEYMuOswoIwLupGvZbRqiBO5UE+bLCBKt2 dI4FNtRhvS9MkFHjLGIDcqX1D4od+ANsmYTtp/RFQDHgJqlxDLA/6P6/UErl/F/bbMmn AcqMFyLEumxDrR2byJ/9gVD9lc8OnpyaXxWSK99Wv1OI2/Yf5LRYD33P9u/Wi3f0hUEX bT3dAu11TiXrH9mezz0JvhxYNH3FwX9DZzn2MbblwESMvAgT3N8PcSFaHgyPya1UYFVd gSHA== X-Gm-Message-State: ABy/qLanrw/GzCy7azuQ7xATIbWHeS2oau1kSgVOcjfPgEP4t3tN68+s hm4tE1L9cdfOW8VoPBDQYMUcjA== X-Google-Smtp-Source: APBJJlFEyLkIuL8Wq3Jqu7Z6swRF/VIvMb80OEnwDuIryYk6JE6AjqCkbB4cESzshC7MW2kIN8b3BA== X-Received: by 2002:a5e:df01:0:b0:786:fff8:13c2 with SMTP id f1-20020a5edf01000000b00786fff813c2mr5491462ioq.11.1688982225538; Mon, 10 Jul 2023 02:43:45 -0700 (PDT) Received: from anup-ubuntu-vm.localdomain ([103.97.165.210]) by smtp.gmail.com with ESMTPSA id k1-20020a6b7a41000000b007870c56387dsm936938iop.49.2023.07.10.02.43.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Jul 2023 02:43:45 -0700 (PDT) From: Anup Patel To: Palmer Dabbelt , Paul Walmsley , Thomas Gleixner , Marc Zyngier , Rob Herring , Krzysztof Kozlowski Subject: [PATCH v5 1/9] RISC-V: Add riscv_fw_parent_hartid() function Date: Mon, 10 Jul 2023 15:13:13 +0530 Message-Id: <20230710094321.1378351-2-apatel@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230710094321.1378351-1-apatel@ventanamicro.com> References: <20230710094321.1378351-1-apatel@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230710_024347_879904_ED242CBF X-CRM114-Status: GOOD ( 10.60 ) 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: , Cc: Anup Patel , devicetree@vger.kernel.org, Saravana Kannan , Anup Patel , linux-kernel@vger.kernel.org, Conor Dooley , Atish Patra , linux-riscv@lists.infradead.org, Andrew Jones 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 We add common riscv_fw_parent_hartid() which help device drivers to get parent hartid of the INTC (i.e. local interrupt controller) fwnode. This should work for both DT and ACPI. Signed-off-by: Anup Patel --- arch/riscv/include/asm/processor.h | 3 +++ arch/riscv/kernel/cpu.c | 16 ++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/arch/riscv/include/asm/processor.h b/arch/riscv/include/asm/processor.h index c950a8d9edef..39dc23a18f88 100644 --- a/arch/riscv/include/asm/processor.h +++ b/arch/riscv/include/asm/processor.h @@ -81,6 +81,9 @@ int riscv_of_processor_hartid(struct device_node *node, unsigned long *hartid); int riscv_early_of_processor_hartid(struct device_node *node, unsigned long *hartid); int riscv_of_parent_hartid(struct device_node *node, unsigned long *hartid); +struct fwnode_handle; +int riscv_fw_parent_hartid(struct fwnode_handle *node, unsigned long *hartid); + extern void riscv_fill_hwcap(void); extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); diff --git a/arch/riscv/kernel/cpu.c b/arch/riscv/kernel/cpu.c index a2fc952318e9..9be9b3b1f333 100644 --- a/arch/riscv/kernel/cpu.c +++ b/arch/riscv/kernel/cpu.c @@ -96,6 +96,22 @@ int riscv_of_parent_hartid(struct device_node *node, unsigned long *hartid) return -1; } +/* Find hart ID of the CPU fwnode under which given fwnode falls. */ +int riscv_fw_parent_hartid(struct fwnode_handle *node, unsigned long *hartid) +{ + int rc; + u64 temp; + + if (!is_of_node(node)) { + rc = fwnode_property_read_u64_array(node, "hartid", &temp, 1); + if (!rc) + *hartid = temp; + } else + rc = riscv_of_parent_hartid(to_of_node(node), hartid); + + return rc; +} + DEFINE_PER_CPU(struct riscv_cpuinfo, riscv_cpuinfo); unsigned long riscv_cached_mvendorid(unsigned int cpu_id) -- 2.34.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv