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genirq/msi: Add bus token to struct msi_domain_info

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Add a bus token member to struct msi_domain_info and let
msi_create_irq_domain() set the bus token.

That allows to remove the bus token updates at the call sites.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20221111122014.294554462@linutronix.de
This commit is contained in:
Ahmed S. Darwish 2022-11-11 14:54:33 +01:00 committed by Thomas Gleixner
parent aeef20527c
commit 22db089a44
2 changed files with 16 additions and 10 deletions
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19
include/linux/msi.h
View File

@ -16,6 +16,7 @@
* abuse. The only function which is relevant for drivers is msi_get_virq().
*/
#include <linux/irqdomain_defs.h>
#include <linux/cpumask.h>
#include <linux/xarray.h>
#include <linux/mutex.h>
@ -365,6 +366,7 @@ struct msi_domain_ops {
/**
* struct msi_domain_info - MSI interrupt domain data
* @flags: Flags to decribe features and capabilities
* @bus_token: The domain bus token
* @ops: The callback data structure
* @chip: Optional: associated interrupt chip
* @chip_data: Optional: associated interrupt chip data
@ -374,14 +376,15 @@ struct msi_domain_ops {
* @data: Optional: domain specific data
*/
struct msi_domain_info {
u32 flags;
struct msi_domain_ops *ops;
struct irq_chip *chip;
void *chip_data;
irq_flow_handler_t handler;
void *handler_data;
const char *handler_name;
void *data;
u32 flags;
enum irq_domain_bus_token bus_token;
struct msi_domain_ops *ops;
struct irq_chip *chip;
void *chip_data;
irq_flow_handler_t handler;
void *handler_data;
const char *handler_name;
void *data;
};
/* Flags for msi_domain_info */

7
kernel/irq/msi.c
View File

@ -694,8 +694,11 @@ struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode,
domain = irq_domain_create_hierarchy(parent, IRQ_DOMAIN_FLAG_MSI, 0,
fwnode, &msi_domain_ops, info);
if (domain && !domain->name && info->chip)
domain->name = info->chip->name;
if (domain) {
if (!domain->name && info->chip)
domain->name = info->chip->name;
irq_domain_update_bus_token(domain, info->bus_token);
}
return domain;
}