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 | |
| parent | 4e8dbe9e93436bcf326adbab7f9761dd8e4ecbfc (diff) | |
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>
| -rw-r--r-- | drivers/pci/msi.c | 4 | ||||
| -rw-r--r-- | kernel/irq/chip.c | 1 | ||||
| -rw-r--r-- | kernel/irq/irqdomain.c | 4 |
3 files changed, 9 insertions, 0 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 7eaa4c87fec7..7a0df3fdbfae 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -257,6 +257,7 @@ void pci_msi_mask_irq(struct irq_data *data) { msi_set_mask_bit(data, 1); } +EXPORT_SYMBOL_GPL(pci_msi_mask_irq); /** * pci_msi_unmask_irq - Generic irq chip callback to unmask PCI/MSI interrupts @@ -266,6 +267,7 @@ void pci_msi_unmask_irq(struct irq_data *data) { msi_set_mask_bit(data, 0); } +EXPORT_SYMBOL_GPL(pci_msi_unmask_irq); void default_restore_msi_irqs(struct pci_dev *dev) { @@ -1126,6 +1128,7 @@ struct pci_dev *msi_desc_to_pci_dev(struct msi_desc *desc) { return to_pci_dev(desc->dev); } +EXPORT_SYMBOL(msi_desc_to_pci_dev); void *msi_desc_to_pci_sysdata(struct msi_desc *desc) { @@ -1285,6 +1288,7 @@ struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode, domain->bus_token = DOMAIN_BUS_PCI_MSI; return domain; } +EXPORT_SYMBOL_GPL(pci_msi_create_irq_domain); /** * pci_msi_domain_alloc_irqs - Allocate interrupts for @dev in @domain diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 05e29de57933..5797909f4e5b 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -950,6 +950,7 @@ void irq_chip_ack_parent(struct irq_data *data) data = data->parent_data; data->chip->irq_ack(data); } +EXPORT_SYMBOL_GPL(irq_chip_ack_parent); /** * irq_chip_mask_parent - Mask the parent interrupt 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 |