From patchwork Mon Oct 17 03:39:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 3201 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4ac7:0:0:0:0:0 with SMTP id y7csp1253775wrs; Sun, 16 Oct 2022 20:43:25 -0700 (PDT) X-Google-Smtp-Source: AMsMyM7Bi4ROXwDSdGRXJWYfAQct7aOvedqmqq4iW/Hvva8+Sb1w8lfPjE4ySdwxoF2ckwLNFcUg X-Received: by 2002:a17:906:4bd3:b0:731:3bdf:b95c with SMTP id x19-20020a1709064bd300b007313bdfb95cmr7228746ejv.677.1665978204879; Sun, 16 Oct 2022 20:43:24 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1665978204; cv=none; d=google.com; s=arc-20160816; b=WK/3Puc1ccuKFU94z/dBL3a2E6LhT0rrskA8HMU0cSH6CT9CVkBtZV6IAOqqb9mCqg 2BW20xelxkbedtmIFr/zpkO6ZcGhPQnOg5DprKfHUN2FUZHC5cofkT5WNiiSBqCUAVsW TMZKIr/FUMZzQITic/2oJW4aDJZgM9EGmr2YbRorZY5VF2ZXvKXde4WuHf+7DTr74nhp huwPqg0vozRYJ+97moaZPkxJypkiBtsxqwsqFNpc/abK81m7JoqRaLu2eQIEuTqnx06C J0F7yq7G0ZxgJEwjpAzP8ocnjETkVbOtZKptYHAirv0TwjCR48uo/go+G/O89po9QkYO rIJQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=bvQXAIkMpmpoxwdll78lC1X/2Xoz4gY6jvG143u98hg=; b=FVWQ2tdje7rZC1Dj4KDo5j5uK5reKe7pUooKgNFc0fCWhIzCaMkyoUXLRrtrJJOu3K KYxmbANZl6BbT+id+ulcWCClAX/sT5ThbxXPO8Zex5yhbzO5glUv3pvO9UnLYiKww+EL 5uCFXtASFOfUWs187sczLCXdporR3Db7F9NpFe5tdzuWInZ5djmwxm7grjUl+BJ2HlYT 8R7zFSKVmx1Iknti7IjG96rfxi0t9ACJ1Cdsps7VFnRVSy0Q/6gCQOlZrLmV4mK+A90O +SdlAnUqHRTH6JQzM6vIM/gg7HbAGV2OAKWGHuB+aFubr4OMvbkqLPBZMxgNYrE8tJ9Q pcFQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id m14-20020a056402510e00b0045da888ea6asi600090edd.65.2022.10.16.20.43.00; Sun, 16 Oct 2022 20:43:24 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232583AbiJQDm3 (ORCPT + 99 others); Sun, 16 Oct 2022 23:42:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47248 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232590AbiJQDm0 (ORCPT ); Sun, 16 Oct 2022 23:42:26 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AF86C50072 for ; Sun, 16 Oct 2022 20:42:25 -0700 (PDT) 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 dfw.source.kernel.org (Postfix) with ESMTPS id 4C7E460F1A for ; Mon, 17 Oct 2022 03:42:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DEBB6C433C1; Mon, 17 Oct 2022 03:42:22 +0000 (UTC) From: Huacai Chen To: Thomas Gleixner , Marc Zyngier Cc: linux-kernel@vger.kernel.org, Xuefeng Li , Huacai Chen , Jiaxun Yang , Huacai Chen Subject: [PATCH 2/4] irqchip/loongson-eiointc: Add suspend/resume support Date: Mon, 17 Oct 2022 11:39:02 +0800 Message-Id: <20221017033904.2421723-3-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20221017033904.2421723-1-chenhuacai@loongson.cn> References: <20221017033904.2421723-1-chenhuacai@loongson.cn> MIME-Version: 1.0 X-Spam-Status: No, score=-6.7 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1746904762228641859?= X-GMAIL-MSGID: =?utf-8?q?1746904762228641859?= Add suspend/resume support for EIOINTC irqchip, which is needed for upcoming suspend/hibernation. Signed-off-by: Huacai Chen --- drivers/irqchip/irq-loongson-eiointc.c | 31 ++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/irqchip/irq-loongson-eiointc.c b/drivers/irqchip/irq-loongson-eiointc.c index 16e9af8d8b1e..c68f8de3ae09 100644 --- a/drivers/irqchip/irq-loongson-eiointc.c +++ b/drivers/irqchip/irq-loongson-eiointc.c @@ -17,6 +17,7 @@ #include #include #include +#include #define EIOINTC_REG_NODEMAP 0x14a0 #define EIOINTC_REG_IPMAP 0x14c0 @@ -301,6 +302,35 @@ static struct irq_domain *acpi_get_vec_parent(int node, struct acpi_vector_group return NULL; } +static int eiointc_suspend(void) +{ + return 0; +} + +static void eiointc_resume(void) +{ + int i, j; + struct irq_desc *desc; + struct irq_data *irq_data; + + eiointc_router_init(0); + + for (i = 0; i < nr_pics; i++) { + for (j = 0; j < VEC_COUNT; j++) { + desc = irq_resolve_mapping(eiointc_priv[i]->eiointc_domain, j); + if (desc && desc->handle_irq && desc->handle_irq != handle_bad_irq) { + irq_data = &desc->irq_data; + eiointc_set_irq_affinity(irq_data, irq_data->common->affinity, 0); + } + } + } +} + +static struct syscore_ops eiointc_syscore_ops = { + .suspend = eiointc_suspend, + .resume = eiointc_resume, +}; + static int __init pch_pic_parse_madt(union acpi_subtable_headers *header, const unsigned long end) @@ -380,6 +410,7 @@ int __init eiointc_acpi_init(struct irq_domain *parent, parent_irq = irq_create_mapping(parent, acpi_eiointc->cascade); irq_set_chained_handler_and_data(parent_irq, eiointc_irq_dispatch, priv); + register_syscore_ops(&eiointc_syscore_ops); cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_LOONGARCH_STARTING, "irqchip/loongarch/intc:starting", eiointc_router_init, NULL);