From: Aleksey Makarov <amakarov.linux@gmail.com>
To: Hanjun Guo <guohanjun@huawei.com>,
Marc Zyngier <marc.zyngier@arm.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Greg KH <gregkh@linuxfoundation.org>,
Tomasz Nowicki <tn@semihalf.com>, Ma Jun <majun258@huawei.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>,
Agustin Vega-Frias <agustinv@codeaurora.org>,
Sinan Kaya <okaya@codeaurora.org>,
G Gregory <graeme.gregory@linaro.org>,
Charles Garcia-Tobin <charles.garcia-tobin@arm.com>,
huxinwei@huawei.com, yimin@huawei.com, linuxarm@huawei.com,
Hanjun Guo <hanjun.guo@linaro.org>
Subject: Re: [PATCH v3 11/14] ACPI: irq: introduce interrupt producer
Date: Thu, 1 Dec 2016 17:12:17 +0600 [thread overview]
Message-ID: <04573e29-6222-24f0-82f4-381367ee8bf0@gmail.com> (raw)
In-Reply-To: <1477408169-22217-12-git-send-email-guohanjun@huawei.com>
Hi Hanjun,
On 10/25/2016 09:09 PM, Hanjun Guo wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
>
> In ACPI 6.1 spec, section 19.6.62, Interrupt Resource Descriptor Macro,
[ ... ]
> ---
> drivers/acpi/gsi.c | 10 ++++--
> drivers/acpi/resource.c | 85 ++++++++++++++++++++++++++++++++++---------------
> include/acpi/acpi_bus.h | 1 +
> 3 files changed, 68 insertions(+), 28 deletions(-)
>
> diff --git a/drivers/acpi/gsi.c b/drivers/acpi/gsi.c
> index ee9e0f2..29ee547 100644
> --- a/drivers/acpi/gsi.c
> +++ b/drivers/acpi/gsi.c
> @@ -55,13 +55,19 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int trigger,
> int polarity)
> {
> struct irq_fwspec fwspec;
> + struct acpi_device *adev = dev ? to_acpi_device(dev) : NULL;
Why are you sure dev is always an acpi device?
Look for example at drivers/acpi/pci_irq.c:377 where this function
is called for a PCI device
>
> - if (WARN_ON(!acpi_gsi_domain_id)) {
> + if (adev && &adev->fwnode && adev->interrupt_producer)
&adev->fwnode is always true
> + /* devices in DSDT connecting to spefic interrupt producer */
> + fwspec.fwnode = adev->interrupt_producer;
> + else if (acpi_gsi_domain_id)
> + /* devices connecting to gicd in default */
> + fwspec.fwnode = acpi_gsi_domain_id;
> + else {
> pr_warn("GSI: No registered irqchip, giving up\n");
> return -EINVAL;
> }
[ ... ]
All the best
Aleksey Makarov
next prev parent reply other threads:[~2016-12-01 11:12 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-25 15:09 [PATCH v3 00/14] ACPI platform MSI, interrupt producer/consumer and its example mbi-gen Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 01/14] ACPI: ARM64: IORT: minor cleanup for iort_match_node_callback() Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 02/14] irqchip: gic-v3-its: keep the head file include in alphabetic order Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 03/14] ACPI: ARM64: IORT: add missing comment for iort_dev_find_its_id() Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 04/14] irqchip: gicv3-its: platform-msi: refactor its_pmsi_prepare() Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 05/14] ACPI: platform-msi: retrieve dev id from IORT Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 06/14] irqchip: gicv3-its: platform-msi: refactor its_pmsi_init() to prepare for ACPI Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 07/14] irqchip: gicv3-its: platform-msi: scan MADT to create platform msi domain Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 08/14] ACPI: ARM64: IORT: rework iort_node_get_id() Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 09/14] ACPI: platform: setup MSI domain for ACPI based platform device Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 10/14] msi: platform: make platform_msi_create_device_domain() ACPI aware Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 11/14] ACPI: irq: introduce interrupt producer Hanjun Guo
2016-10-28 19:32 ` agustinv
2016-11-02 21:09 ` Hanjun Guo
2016-12-01 11:12 ` Aleksey Makarov [this message]
2016-12-02 10:07 ` Hanjun Guo
2016-12-03 12:18 ` G Gregory
2016-10-25 15:09 ` [PATCH v3 12/14] irqchip: mbigen: drop module owner Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 13/14] irqchip: mbigen: introduce mbigen_of_create_domain() Hanjun Guo
2016-10-25 15:09 ` [PATCH v3 14/14] irqchip: mbigen: Add ACPI support Hanjun Guo
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