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[209.132.180.67]) by mx.google.com with ESMTP id d129si33736052pfa.184.2016.09.14.07.24.09; Wed, 14 Sep 2016 07:24:09 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-acpi-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-acpi-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-acpi-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933241AbcINOYA (ORCPT + 6 others); Wed, 14 Sep 2016 10:24:00 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:32433 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933231AbcINOXz (ORCPT ); Wed, 14 Sep 2016 10:23:55 -0400 Received: from 172.24.1.136 (EHLO szxeml426-hub.china.huawei.com) ([172.24.1.136]) by szxrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DNB48949; Wed, 14 Sep 2016 22:23:30 +0800 (CST) Received: from linux-ibm.site (10.175.102.37) by szxeml426-hub.china.huawei.com (10.82.67.181) with Microsoft SMTP Server id 14.3.235.1; Wed, 14 Sep 2016 22:23:19 +0800 From: Hanjun Guo To: "Rafael J. Wysocki" , Marc Zyngier , Lorenzo Pieralisi CC: , , , Thomas Gleixner , "Bjorn Helgaas" , Greg KH , "Tomasz Nowicki" , Ma Jun , Kefeng Wang , Charles Garcia-Tobin , , Hanjun Guo Subject: [RFC PATCH v2 10/11] irqchip: mbigen: Add ACPI support Date: Wed, 14 Sep 2016 22:21:18 +0800 Message-ID: <1473862879-7769-11-git-send-email-guohanjun@huawei.com> X-Mailer: git-send-email 1.7.12.4 In-Reply-To: <1473862879-7769-1-git-send-email-guohanjun@huawei.com> References: <1473862879-7769-1-git-send-email-guohanjun@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.102.37] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.57D95D62.0273, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 6f05c140c6f83e652e13e17be448fdee Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Hanjun Guo With the preparation of platform msi support and interrupt producer in DSDT, we can add mbigen ACPI support now. We are using _PRS methd to indicate number of irq pins instead of num_pins in DT. For mbi-gen, Device(MBI0) { Name(_HID, "HISI0152") Name(_UID, Zero) Name(_CRS, ResourceTemplate() { Memory32Fixed(ReadWrite, 0xa0080000, 0x10000) }) Name (_PRS, ResourceTemplate() { Interrupt(ResourceProducer,...) {12,14,....} }) } For devices, Device(COM0) { Name(_HID, "ACPIIDxx") Name(_UID, Zero) Name(_CRS, ResourceTemplate() { Memory32Fixed(ReadWrite, 0xb0030000, 0x10000) Interrupt(ResourceConsumer,..., "\_SB.MBI0") {12} }) } With the helpe of platform msi and interrupt producer, then devices will get the virq from mbi-gen's irqdomain. Cc: Marc Zyngier Cc: Thomas Gleixner Cc: Ma Jun Signed-off-by: Hanjun Guo --- drivers/irqchip/irq-mbigen.c | 70 ++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 67 insertions(+), 3 deletions(-) -- 1.7.12.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c index 9484ea0..ca6add1 100644 --- a/drivers/irqchip/irq-mbigen.c +++ b/drivers/irqchip/irq-mbigen.c @@ -16,6 +16,7 @@ * along with this program. If not, see . */ +#include #include #include #include @@ -180,7 +181,7 @@ static int mbigen_domain_translate(struct irq_domain *d, unsigned long *hwirq, unsigned int *type) { - if (is_of_node(fwspec->fwnode)) { + if (is_of_node(fwspec->fwnode) || is_acpi_device_node(fwspec->fwnode)) { if (fwspec->param_count != 2) return -EINVAL; @@ -271,6 +272,54 @@ static int mbigen_of_create_domain(struct platform_device *pdev, return 0; } +#ifdef CONFIG_ACPI +static acpi_status mbigen_acpi_process_resource(struct acpi_resource *ares, + void *context) +{ + struct acpi_resource_extended_irq *ext_irq; + u32 *num_irqs = context; + + switch (ares->type) { + case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: + ext_irq = &ares->data.extended_irq; + *num_irqs += ext_irq->interrupt_count; + break; + default: + break; + } + + return AE_OK; +} + +static int mbigen_acpi_create_domain(struct platform_device *pdev, + struct mbigen_device *mgn_chip) +{ + struct irq_domain *domain; + u32 num_msis = 0; + acpi_status status; + + status = acpi_walk_resources(ACPI_HANDLE(&pdev->dev), METHOD_NAME__PRS, + mbigen_acpi_process_resource, &num_msis); + if (ACPI_FAILURE(status) || num_msis == 0) + return -EINVAL; + + domain = platform_msi_create_device_domain(&pdev->dev, num_msis, + mbigen_write_msg, + &mbigen_domain_ops, + mgn_chip); + if (!domain) + return -ENOMEM; + + return 0; +} +#else +static int mbigen_acpi_create_domain(struct platform_device *pdev, + struct mbigen_device *mgn_chip) +{ + return -ENODEV; +} +#endif + static int mbigen_device_probe(struct platform_device *pdev) { struct mbigen_device *mgn_chip; @@ -288,9 +337,17 @@ static int mbigen_device_probe(struct platform_device *pdev) if (IS_ERR(mgn_chip->base)) return PTR_ERR(mgn_chip->base); - err = mbigen_of_create_domain(pdev, mgn_chip); - if (err) + if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) + err = mbigen_of_create_domain(pdev, mgn_chip); + else if (ACPI_COMPANION(&pdev->dev)) + err = mbigen_acpi_create_domain(pdev, mgn_chip); + else + err = -EINVAL; + + if (err) { + dev_err(&pdev->dev, "Failed to create mbi-gen@%p irqdomain", mgn_chip->base); return err; + } platform_set_drvdata(pdev, mgn_chip); return 0; @@ -302,10 +359,17 @@ static const struct of_device_id mbigen_of_match[] = { }; MODULE_DEVICE_TABLE(of, mbigen_of_match); +static const struct acpi_device_id mbigen_acpi_match[] = { + { "HISI0152", 0 }, + {} +}; +MODULE_DEVICE_TABLE(acpi, mbigen_acpi_match); + static struct platform_driver mbigen_platform_driver = { .driver = { .name = "Hisilicon MBIGEN-V2", .of_match_table = mbigen_of_match, + .acpi_match_table = ACPI_PTR(mbigen_acpi_match), }, .probe = mbigen_device_probe, };