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irqdomain: Add device pointer to irq_domain_info and msi_domain_info 

Add device pointer to irq_domain_info and msi_domain_info, so that the device
can be specified at domain creation time.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/943e52403b20cf13c320d55bd4446b4562466aab.1750860131.git.namcao@linutronix.de
pull/1309/head
Thomas Gleixner 2025-06-26 16:48:58 +02:00
parent 41a5f82885
commit 858e65af91
4 changed files with 7 additions and 1 deletions
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2
include/linux/irqdomain.h
View File

@ -279,6 +279,7 @@ struct irq_domain_chip_generic_info;
* domains are added using same fwnode
* @ops: Domain operation callbacks
* @host_data: Controller private data pointer
* @dev: Device which creates the domain
* @dgc_info: Geneneric chip information structure pointer used to
* create generic chips for the domain if not NULL.
* @init: Function called when the domain is created.
@ -298,6 +299,7 @@ struct irq_domain_info {
const char *name_suffix;
const struct irq_domain_ops *ops;
void *host_data;
struct device *dev;
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
/**
* @parent: Pointer to the parent irq domain used in a hierarchy domain

2
include/linux/msi.h
View File

@ -488,6 +488,7 @@ struct msi_domain_ops {
* gets initialized to the maximum software index limit
* by the domain creation code.
* @ops: The callback data structure
* @dev: Device which creates the domain
* @chip: Optional: associated interrupt chip
* @chip_data: Optional: associated interrupt chip data
* @handler: Optional: associated interrupt flow handler
@ -501,6 +502,7 @@ struct msi_domain_info {
enum irq_domain_bus_token bus_token;
unsigned int hwsize;
struct msi_domain_ops *ops;
struct device *dev;
struct irq_chip *chip;
void *chip_data;
irq_flow_handler_t handler;

1
kernel/irq/irqdomain.c
View File

@ -317,6 +317,7 @@ static struct irq_domain *__irq_domain_instantiate(const struct irq_domain_info
domain->flags |= info->domain_flags;
domain->exit = info->exit;
domain->dev = info->dev;
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
if (info->parent) {

3
kernel/irq/msi.c
View File

@ -889,6 +889,7 @@ static struct irq_domain *__msi_create_irq_domain(struct fwnode_handle *fwnode,
if (domain) {
irq_domain_update_bus_token(domain, info->bus_token);
domain->dev = info->dev;
if (info->flags & MSI_FLAG_PARENT_PM_DEV)
domain->pm_dev = parent->pm_dev;
}
@ -1051,6 +1052,7 @@ bool msi_create_device_irq_domain(struct device *dev, unsigned int domid,
bundle->info.data = domain_data;
bundle->info.chip_data = chip_data;
bundle->info.alloc_data = &bundle->alloc_info;
bundle->info.dev = dev;
pops = parent->msi_parent_ops;
snprintf(bundle->name, sizeof(bundle->name), "%s%s-%s",
@ -1089,7 +1091,6 @@ bool msi_create_device_irq_domain(struct device *dev, unsigned int domid,
if (!domain)
return false;
domain->dev = dev;
dev->msi.data->__domains[domid].domain = domain;
if (msi_domain_prepare_irqs(domain, dev, hwsize, &bundle->alloc_info)) {