From patchwork Wed Oct 25 20:23:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sunil V L X-Patchwork-Id: 738137 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BFAC9C0032E for ; Wed, 25 Oct 2023 20:27:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343668AbjJYU1w (ORCPT ); Wed, 25 Oct 2023 16:27:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343638AbjJYU1X (ORCPT ); Wed, 25 Oct 2023 16:27:23 -0400 Received: from mail-pf1-x436.google.com (mail-pf1-x436.google.com [IPv6:2607:f8b0:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5F20A1FD8 for ; Wed, 25 Oct 2023 13:26:11 -0700 (PDT) Received: by mail-pf1-x436.google.com with SMTP id d2e1a72fcca58-6bd32d1a040so130543b3a.3 for ; Wed, 25 Oct 2023 13:26:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1698265571; x=1698870371; darn=vger.kernel.org; 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=j0XhMD4JA6OaCaDrqm344212wQ/hTWt0yHku4ySQPd8=; b=K64MiWefCeoGQ1P8qOxTxGSFT0lmoUcJ06G1MQheX3InL5mn/4fWWpX19CuxodTYr2 qWCpLhlBwh1WbTvEN2DCus3ODseYqEmj2nrej7TJsAvBh8c5Bi2v1hOcy6UdGgl6Z20U g5DD6o/qENYB3IRiqyRfgR30ezfVwGN366kYRXhZ4iAgXhEwTcMSHMfSfSX2Crwsc22q 3ZnODgoafThBIzwVycYU6ZqZVmFRNg6WLSot7bsT1a+twHgzZSO205htuDFm/RsskpMM Gwn739A/ay4axzan9QfWDgjkClDS3t92XQiKdkBDlLb2mvlv2jywW81SRZ2DZTnrPwTa Ohsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698265571; x=1698870371; 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=j0XhMD4JA6OaCaDrqm344212wQ/hTWt0yHku4ySQPd8=; b=L+s4qxMoLPNNrnlUUdv7fXIhQL9Eu0NlNXVHnHZ09xYhwGagYfT4u+/4ps/aoi4EXE X29YkyF1gQZEphgCGyRR8Kv+/xv9fSb48wZ/+frvu9GgYtmfIZaSBLMSmbQxTrRrD9fv yDcro5Q7n0So1b24SaMq5/24jXwdY/d1cFAkSk8Zlvu5sAm5w+8iH6GAzz8fkX5lqN+f qaCNewYpxrlCfi5nEZCcppqP+LiML3OQnZ6aKqq61+ZY0W9WXQ8r2rrZvO8f32EQTOFa s93n3YZKHq+HGXlG43w0ABZVGTm9UtBwIh/W+Q+BEwfObFjRJ8FI7xfh8EzkDwK0JF5N devA== X-Gm-Message-State: AOJu0Yz/HQnKTXbf57r+mcDB5W4fguA9KFjxIFfih730VcmeJFc0Enyo ZZ7XdQuLpRiz/b7kFs4ynqcbXA== X-Google-Smtp-Source: AGHT+IFjlmAHmkBC51cPzJaQWPRY6g5oe+6V9CmrTCMV9Y5zgvaJjhr+jA6O8yL6wxa5uTMIhaBuRw== X-Received: by 2002:a05:6a00:15cf:b0:6b1:b5c4:a8b0 with SMTP id o15-20020a056a0015cf00b006b1b5c4a8b0mr19858459pfu.23.1698265570741; Wed, 25 Oct 2023 13:26:10 -0700 (PDT) Received: from sunil-pc.Dlink ([106.51.188.78]) by smtp.gmail.com with ESMTPSA id y3-20020aa79423000000b006b84ed9371esm10079590pfo.177.2023.10.25.13.26.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Oct 2023 13:26:10 -0700 (PDT) From: Sunil V L To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org, linux-serial@vger.kernel.org Cc: Catalin Marinas , Will Deacon , Paul Walmsley , Palmer Dabbelt , Albert Ou , "Rafael J . Wysocki" , Len Brown , Bjorn Helgaas , Anup Patel , Thomas Gleixner , Greg Kroah-Hartman , Jiri Slaby , Conor Dooley , Andrew Jones , Atish Kumar Patra , Haibo Xu , Sunil V L Subject: [RFC PATCH v2 21/21] ACPI: RISC-V: Create PLIC platform device Date: Thu, 26 Oct 2023 01:53:44 +0530 Message-Id: <20231025202344.581132-22-sunilvl@ventanamicro.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231025202344.581132-1-sunilvl@ventanamicro.com> References: <20231025202344.581132-1-sunilvl@ventanamicro.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org Since PLIC needs to be a platform device, probe the MADT and create platform devices for each PLIC in the system. Signed-off-by: Sunil V L --- drivers/acpi/riscv/init.c | 1 + drivers/acpi/riscv/init.h | 1 + drivers/acpi/riscv/irq.c | 14 ++++++++++++++ 3 files changed, 16 insertions(+) diff --git a/drivers/acpi/riscv/init.c b/drivers/acpi/riscv/init.c index e7eff7ab1474..c6fd4097e8ae 100644 --- a/drivers/acpi/riscv/init.c +++ b/drivers/acpi/riscv/init.c @@ -11,4 +11,5 @@ void __init acpi_riscv_init(void) { riscv_acpi_aplic_platform_init(); + riscv_acpi_plic_platform_init(); } diff --git a/drivers/acpi/riscv/init.h b/drivers/acpi/riscv/init.h index 17bcf0baaadb..b4b305d83b3a 100644 --- a/drivers/acpi/riscv/init.h +++ b/drivers/acpi/riscv/init.h @@ -3,3 +3,4 @@ void __init riscv_acpi_imsic_platform_init(void); void __init riscv_acpi_aplic_platform_init(void); +void __init riscv_acpi_plic_platform_init(void); diff --git a/drivers/acpi/riscv/irq.c b/drivers/acpi/riscv/irq.c index fbccecdcbf8b..90b0738e2b9f 100644 --- a/drivers/acpi/riscv/irq.c +++ b/drivers/acpi/riscv/irq.c @@ -104,3 +104,17 @@ void __init riscv_acpi_aplic_platform_init(void) { acpi_table_parse_madt(ACPI_MADT_TYPE_APLIC, aplic_parse_madt, 0); } + +static int __init plic_parse_madt(union acpi_subtable_headers *header, + const unsigned long end) +{ + struct acpi_madt_plic *plic = (struct acpi_madt_plic *)header; + + return irqchip_add_platform_device("riscv-plic", plic->id, plic->base_addr, + plic->size, header); +} + +void __init riscv_acpi_plic_platform_init(void) +{ + acpi_table_parse_madt(ACPI_MADT_TYPE_PLIC, plic_parse_madt, 0); +}