From: Tomasz Nowicki <tn@semihalf.com>
To: marc.zyngier@arm.com, tglx@linutronix.de, jason@lakedaemon.net,
rjw@rjwysocki.net, bhelgaas@google.com,
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, andrea.gallo@linaro.org,
linux-pci@vger.kernel.org, Tomasz Nowicki <tn@semihalf.com>
Subject: [PATCH V6 6/7] irqchip/gicv3-its: Factor out code that might be reused for ACPI
Date: Mon, 13 Jun 2016 16:41:12 +0200 [thread overview]
Message-ID: <1465828873-23498-7-git-send-email-tn@semihalf.com> (raw)
In-Reply-To: <1465828873-23498-1-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 | 44 +++++++++++++++++++++-----------
1 file changed, 29 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..23679ae 100644
--- a/drivers/irqchip/irq-gic-v3-its-pci-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
@@ -106,34 +106,48 @@ 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,
+ const char *name)
{
- 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("%s: Unable to locate ITS domain\n", name);
+ return -ENXIO;
+ }
+
+ if (!pci_msi_create_irq_domain(handle, &its_pci_msi_domain_info,
+ parent)) {
+ pr_err("%s: Unable to create PCI domain\n", name);
+ 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), np->full_name))
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:[~2016-06-13 14:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-13 14:41 [PATCH V6 0/7] Introduce ACPI world to ITS irqchip Tomasz Nowicki
2016-06-13 14:41 ` [PATCH V6 1/7] ACPI: I/O Remapping Table (IORT) initial support Tomasz Nowicki
2016-06-15 8:31 ` Marc Zyngier
2016-06-17 14:06 ` Tomasz Nowicki
2016-06-15 11:04 ` Lorenzo Pieralisi
2016-06-15 13:29 ` Tomasz Nowicki
2016-06-20 9:34 ` Tomasz Nowicki
2016-06-15 13:19 ` Sinan Kaya
2016-06-15 13:34 ` Lorenzo Pieralisi
2016-06-15 13:46 ` Sinan Kaya
2016-06-15 14:13 ` Lorenzo Pieralisi
2016-06-15 14:44 ` Sinan Kaya
2016-06-13 14:41 ` [PATCH V6 2/7] PCI/MSI: Setup MSI domain on a per-devices basis using IORT ACPI table Tomasz Nowicki
2016-06-15 8:33 ` Marc Zyngier
2016-06-13 14:41 ` [PATCH V6 3/7] irqchip/gicv3-its: Cleanup for ITS domain initialization Tomasz Nowicki
2016-06-13 14:41 ` [PATCH V6 4/7] irqchip/gicv3-its: Refator ITS DT init code to prepare for ACPI Tomasz Nowicki
2016-06-15 8:52 ` Marc Zyngier
2016-06-13 14:41 ` [PATCH V6 5/7] irqchip/gicv3-its: Probe ITS in the ACPI way Tomasz Nowicki
2016-06-15 8:56 ` Marc Zyngier
2016-06-13 14:41 ` Tomasz Nowicki [this message]
2016-06-15 9:00 ` [PATCH V6 6/7] irqchip/gicv3-its: Factor out code that might be reused for ACPI Marc Zyngier
2016-06-13 14:41 ` [PATCH V6 7/7] irqchip/gicv3-its: Use MADT ITS subtable to do PCI/MSI domain initialization Tomasz Nowicki
2016-06-15 9:03 ` Marc Zyngier
2016-06-15 9:09 ` [PATCH V6 0/7] Introduce ACPI world to ITS irqchip Marc Zyngier
2016-06-15 9:34 ` Tomasz Nowicki
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1465828873-23498-7-git-send-email-tn@semihalf.com \
--to=tn@semihalf.com \
--cc=Catalin.Marinas@arm.com \
--cc=Suravee.Suthikulpanit@amd.com \
--cc=al.stone@linaro.org \
--cc=andrea.gallo@linaro.org \
--cc=bhelgaas@google.com \
--cc=ddaney.cavm@gmail.com \
--cc=graeme.gregory@linaro.org \
--cc=hanjun.guo@linaro.org \
--cc=jason@lakedaemon.net \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=marc.zyngier@arm.com \
--cc=mw@semihalf.com \
--cc=okaya@codeaurora.org \
--cc=rjw@rjwysocki.net \
--cc=robert.richter@caviumnetworks.com \
--cc=shijie.huang@arm.com \
--cc=tglx@linutronix.de \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).