diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2022-11-25 00:25:52 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2022-12-05 19:21:01 +0100 |
| commit | a80c0aceeaffdb3afe9536fe747480e85841da7f (patch) | |
| tree | ee4e39bd1f61ae873878239c23eaca713c566868 /kernel/irq | |
| parent | 61bf992fc618503c910416f28afa0b015838b72b (diff) | |
| download | linux-a80c0aceeaffdb3afe9536fe747480e85841da7f.tar.bz2 | |
genirq/msi: Split msi_create_irq_domain()
Split the functionality of msi_create_irq_domain() so it can
be reused for creating per device irq domains.
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232325.559086358@linutronix.de
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/msi.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index 0a3890598b75..0f7fe562b307 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -758,17 +758,10 @@ static void msi_domain_update_chip_ops(struct msi_domain_info *info) chip->irq_set_affinity = msi_domain_set_affinity; } -/** - * msi_create_irq_domain - Create an MSI interrupt domain - * @fwnode: Optional fwnode of the interrupt controller - * @info: MSI domain info - * @parent: Parent irq domain - * - * Return: pointer to the created &struct irq_domain or %NULL on failure - */ -struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode, - struct msi_domain_info *info, - struct irq_domain *parent) +static struct irq_domain *__msi_create_irq_domain(struct fwnode_handle *fwnode, + struct msi_domain_info *info, + unsigned int flags, + struct irq_domain *parent) { struct irq_domain *domain; @@ -787,7 +780,7 @@ struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode, if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS) msi_domain_update_chip_ops(info); - domain = irq_domain_create_hierarchy(parent, IRQ_DOMAIN_FLAG_MSI, 0, + domain = irq_domain_create_hierarchy(parent, flags | IRQ_DOMAIN_FLAG_MSI, 0, fwnode, &msi_domain_ops, info); if (domain) { @@ -800,6 +793,21 @@ struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode, } /** + * msi_create_irq_domain - Create an MSI interrupt domain + * @fwnode: Optional fwnode of the interrupt controller + * @info: MSI domain info + * @parent: Parent irq domain + * + * Return: pointer to the created &struct irq_domain or %NULL on failure + */ +struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode, + struct msi_domain_info *info, + struct irq_domain *parent) +{ + return __msi_create_irq_domain(fwnode, info, 0, parent); +} + +/** * msi_parent_init_dev_msi_info - Delegate initialization of device MSI info down * in the domain hierarchy * @dev: The device for which the domain should be created |