From: Tomasz Nowicki <tn@semihalf.com>
To: marc.zyngier@arm.com, tglx@linutronix.de, jason@lakedaemon.net,
rjw@rjwysocki.net, lorenzo.pieralisi@arm.com,
robert.richter@caviumnetworks.com, shijie.huang@arm.com,
Suravee.Suthikulpanit@amd.com, hanjun.guo@linaro.org
Cc: al.stone@linaro.org, mw@semihalf.com, graeme.gregory@linaro.org,
Catalin.Marinas@arm.com, will.deacon@arm.com,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, ddaney.cavm@gmail.com,
okaya@codeaurora.org, Tomasz Nowicki <tn@semihalf.com>
Subject: [PATCH V4 6/7] its, pci, msi: Factor out code that might be reused for ACPI.
Date: Mon, 4 Apr 2016 10:52:54 +0200 [thread overview]
Message-ID: <1459759975-24097-7-git-send-email-tn@semihalf.com> (raw)
In-Reply-To: <1459759975-24097-1-git-send-email-tn@semihalf.com>
Firmware agnostic code lands in common functions which do necessary
domain initialization based on unique domain handler. DT specific
code goes to DT specific init call.
Signed-off-by: Tomasz Nowicki <tn@semihalf.com>
---
drivers/irqchip/irq-gic-v3-its-pci-msi.c | 43 +++++++++++++++++++++-----------
1 file changed, 28 insertions(+), 15 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v3-its-pci-msi.c b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
index aee60ed..06165cb 100644
--- a/drivers/irqchip/irq-gic-v3-its-pci-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
@@ -106,34 +106,47 @@ static struct of_device_id its_device_id[] = {
{},
};
-static int __init its_pci_msi_init(void)
+static int __init its_pci_msi_init_one(struct fwnode_handle *handle)
{
- struct device_node *np;
struct irq_domain *parent;
+ parent = irq_find_matching_fwnode(handle, DOMAIN_BUS_NEXUS);
+ if (!parent || !msi_get_domain_info(parent)) {
+ pr_err("Unable to locate ITS domain\n");
+ return -ENXIO;
+ }
+
+ if (!pci_msi_create_irq_domain(handle, &its_pci_msi_domain_info,
+ parent)) {
+ pr_err("Unable to create PCI domain\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static int __init its_pci_of_msi_init(void)
+{
+ struct device_node *np;
+
for (np = of_find_matching_node(NULL, its_device_id); np;
np = of_find_matching_node(np, its_device_id)) {
if (!of_property_read_bool(np, "msi-controller"))
continue;
- parent = irq_find_matching_host(np, DOMAIN_BUS_NEXUS);
- if (!parent || !msi_get_domain_info(parent)) {
- pr_err("%s: unable to locate ITS domain\n",
- np->full_name);
+ if (its_pci_msi_init_one(of_node_to_fwnode(np)))
continue;
- }
-
- if (!pci_msi_create_irq_domain(of_node_to_fwnode(np),
- &its_pci_msi_domain_info,
- parent)) {
- pr_err("%s: unable to create PCI domain\n",
- np->full_name);
- continue;
- }
pr_info("PCI/MSI: %s domain created\n", np->full_name);
}
return 0;
}
+
+static int __init its_pci_msi_init(void)
+{
+ its_pci_of_msi_init();
+ return 0;
+}
+
early_initcall(its_pci_msi_init);
--
1.9.1
next prev parent reply other threads:[~2016-04-04 8:53 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-04 8:52 [PATCH V4 0/7] Introduce ACPI world to ITS irqchip Tomasz Nowicki
2016-04-04 8:52 ` [PATCH V4 1/7] acpi, pci: Setup MSI domain on a per-devices basis Tomasz Nowicki
2016-04-13 10:18 ` Marc Zyngier
2016-04-13 10:49 ` Tomasz Nowicki
2016-04-04 8:52 ` [PATCH V4 2/7] irqchip, GICv3, ITS: Cleanup for ITS domain initialization Tomasz Nowicki
2016-04-13 14:18 ` Marc Zyngier
2016-04-04 8:52 ` [PATCH V4 3/7] irqchip, GICv3, ITS: Refator ITS DT init code to prepare for ACPI Tomasz Nowicki
2016-04-12 10:18 ` Tomasz Nowicki
2016-04-13 15:09 ` Marc Zyngier
2016-04-04 8:52 ` [PATCH V4 4/7] ARM64, ACPI, PCI: I/O Remapping Table (IORT) initial support Tomasz Nowicki
2016-04-13 15:23 ` Marc Zyngier
2016-04-13 15:36 ` Tomasz Nowicki
2016-04-13 15:52 ` Marc Zyngier
2016-04-13 21:18 ` Sinan Kaya
2016-04-14 7:20 ` Tomasz Nowicki
2016-04-14 7:36 ` Marc Zyngier
2016-04-14 11:37 ` okaya
2016-04-14 11:48 ` Marc Zyngier
2016-04-14 7:39 ` Tomasz Nowicki
2016-04-14 7:46 ` Marc Zyngier
2016-04-04 8:52 ` [PATCH V4 5/7] irqchip, gicv3, its: Probe ITS in the ACPI way Tomasz Nowicki
2016-04-14 9:01 ` Marc Zyngier
2016-04-04 8:52 ` Tomasz Nowicki [this message]
2016-04-04 8:52 ` [PATCH V4 7/7] acpi, gicv3, its: Use MADT ITS subtable to do PCI/MSI domain initialization Tomasz Nowicki
2016-04-12 7:39 ` [PATCH V4 0/7] Introduce ACPI world to ITS irqchip Tomasz Nowicki
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