diff options
| author |   Jake Oshins <jakeo@microsoft.com> | 2015-12-10 17:52:59 +0000 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2015-12-20 12:26:52 +0100 |
| commit | a4289dc2ec3a5821076a78ee9678909b4eff297e (patch) | |
| tree | 6f29c69fac58fd8b76bb49c27ccbe6cefdf5b5c2 /kernel/irq/irqdomain.c | |
| parent | Merge branch 'irq/gic-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core (diff) | |
| download | wireguard-linux-a4289dc2ec3a5821076a78ee9678909b4eff297e.tar.xz wireguard-linux-a4289dc2ec3a5821076a78ee9678909b4eff297e.zip | |
genirq/msi: Export functions to allow MSI domains in modules
The Linux kernel already has the concept of IRQ domain, wherein a
component can expose a set of IRQs which are managed by a particular
interrupt controller chip or other subsystem. The PCI driver exposes
the notion of an IRQ domain for Message-Signaled Interrupts (MSI) from
PCI Express devices. This patch exposes the functions which are
necessary for creating a MSI IRQ domain within a module.
[ tglx: Split it into x86 and core irq parts ]
Signed-off-by: Jake Oshins <jakeo@microsoft.com>
Cc: gregkh@linuxfoundation.org
Cc: kys@microsoft.com
Cc: devel@linuxdriverproject.org
Cc: olaf@aepfle.de
Cc: apw@canonical.com
Cc: vkuznets@redhat.com
Cc: haiyangz@microsoft.com
Cc: marc.zyngier@arm.com
Cc: bhelgaas@google.com
Link: http://lkml.kernel.org/r/1449769983-12948-4-git-send-email-jakeo@microsoft.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/irqdomain.c')
| -rw-r--r-- | kernel/irq/irqdomain.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 1c9973e1b316..280a7fc43dd1 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -60,6 +60,7 @@ struct fwnode_handle *irq_domain_alloc_fwnode(void *data) fwid->fwnode.type = FWNODE_IRQCHIP; return &fwid->fwnode; } +EXPORT_SYMBOL_GPL(irq_domain_alloc_fwnode); /** * irq_domain_free_fwnode - Free a non-OF-backed fwnode_handle @@ -77,6 +78,7 @@ void irq_domain_free_fwnode(struct fwnode_handle *fwnode) kfree(fwid->name); kfree(fwid); } +EXPORT_SYMBOL_GPL(irq_domain_free_fwnode); /** * __irq_domain_add() - Allocate a new irq_domain data structure @@ -1013,6 +1015,7 @@ struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain, return NULL; } +EXPORT_SYMBOL_GPL(irq_domain_get_irq_data); /** * irq_domain_set_hwirq_and_chip - Set hwirq and irqchip of @virq at @domain @@ -1343,6 +1346,7 @@ struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain, return (irq_data && irq_data->domain == domain) ? irq_data : NULL; } +EXPORT_SYMBOL_GPL(irq_domain_get_irq_data); /** * irq_domain_set_info - Set the complete data for a @virq in @domain |