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authorMarc Zyngier <marc.zyngier@arm.com>2015-11-23 11:26:05 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2015-12-16 18:29:44 +0300
commitb2eba39bcab9d60a6c3b80c7fc2f3dacb77eeaae (patch)
tree8f1de22deb5f8492446467b12920ca9c7e9f5b37 /include/linux/msi.h
parentc466595c416c04036e1ba36ecdc5fe9072c76228 (diff)
downloadlinux-b2eba39bcab9d60a6c3b80c7fc2f3dacb77eeaae.tar.xz
genirq/msi: Make the .prepare callback reusable
The .prepare callbacks are so far only called from msi_domain_alloc_irqs. In order to reuse that code, split that code and create a msi_domain_prepare_irqs function that the existing code can call into. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'include/linux/msi.h')
-rw-r--r--include/linux/msi.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h
index f71a25e5fd25..1c0bb2c0b211 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -279,6 +279,10 @@ struct irq_domain *platform_msi_create_irq_domain(struct fwnode_handle *fwnode,
int platform_msi_domain_alloc_irqs(struct device *dev, unsigned int nvec,
irq_write_msi_msg_t write_msi_msg);
void platform_msi_domain_free_irqs(struct device *dev);
+
+/* When an MSI domain is used as an intermediate domain */
+int msi_domain_prepare_irqs(struct irq_domain *domain, struct device *dev,
+ int nvec, msi_alloc_info_t *args);
#endif /* CONFIG_GENERIC_MSI_IRQ_DOMAIN */
#ifdef CONFIG_PCI_MSI_IRQ_DOMAIN