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authorThomas Gleixner <tglx@linutronix.de>2021-04-24 21:18:44 +0200
committerThomas Gleixner <tglx@linutronix.de>2021-04-24 21:18:44 +0200
commit765822e1569a37aab5e69736c52d4ad4a289eba6 (patch)
treef5ba832f764e5b1b80186b9b277563560e83c629 /kernel/irq/irqdomain.c
parent7c07012eb1be8b4a95d3502fd30795849007a40e (diff)
parentdebf69cfd4c618c7036a13cc4edd1faf87ce7d53 (diff)
Merge tag 'irqchip-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip and irqdomain updates from Marc Zyngier: New HW support: - New driver for the Nuvoton WPCM450 interrupt controller - New driver for the IDT 79rc3243x interrupt controller - Add support for interrupt trigger configuration to the MStar irqchip - Add more external interrupt support to the STM32 irqchip - Add new compatible strings for QCOM SC7280 to the qcom-pdc binding Fixes and cleanups: - Drop irq_create_strict_mappings() and irq_create_identity_mapping() from the irqdomain API, with cleanups in a couple of drivers - Fix nested NMI issue with spurious interrupts on GICv3 - Don't allow GICv4.1 vSGIs when the CPU doesn't support them - Various cleanups and minor fixes Link: https://lore.kernel.org/r/20210424094640.1731920-1-maz@kernel.org
Diffstat (limited to 'kernel/irq/irqdomain.c')
-rw-r--r--kernel/irq/irqdomain.c52
1 files changed, 6 insertions, 46 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 6cb7a9d7e8b1..f42ef868efd3 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -703,41 +703,6 @@ unsigned int irq_create_mapping_affinity(struct irq_domain *domain,
}
EXPORT_SYMBOL_GPL(irq_create_mapping_affinity);
-/**
- * irq_create_strict_mappings() - Map a range of hw irqs to fixed linux irqs
- * @domain: domain owning the interrupt range
- * @irq_base: beginning of linux IRQ range
- * @hwirq_base: beginning of hardware IRQ range
- * @count: Number of interrupts to map
- *
- * This routine is used for allocating and mapping a range of hardware
- * irqs to linux irqs where the linux irq numbers are at pre-defined
- * locations. For use by controllers that already have static mappings
- * to insert in to the domain.
- *
- * Non-linear users can use irq_create_identity_mapping() for IRQ-at-a-time
- * domain insertion.
- *
- * 0 is returned upon success, while any failure to establish a static
- * mapping is treated as an error.
- */
-int irq_create_strict_mappings(struct irq_domain *domain, unsigned int irq_base,
- irq_hw_number_t hwirq_base, int count)
-{
- struct device_node *of_node;
- int ret;
-
- of_node = irq_domain_get_of_node(domain);
- ret = irq_alloc_descs(irq_base, irq_base, count,
- of_node_to_nid(of_node));
- if (unlikely(ret < 0))
- return ret;
-
- irq_domain_associate_many(domain, irq_base, hwirq_base, count);
- return 0;
-}
-EXPORT_SYMBOL_GPL(irq_create_strict_mappings);
-
static int irq_domain_translate(struct irq_domain *d,
struct irq_fwspec *fwspec,
irq_hw_number_t *hwirq, unsigned int *type)
@@ -1694,12 +1659,10 @@ void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs)
/**
* irq_domain_alloc_irqs_parent - Allocate interrupts from parent domain
+ * @domain: Domain below which interrupts must be allocated
* @irq_base: Base IRQ number
* @nr_irqs: Number of IRQs to allocate
* @arg: Allocation data (arch/domain specific)
- *
- * Check whether the domain has been setup recursive. If not allocate
- * through the parent domain.
*/
int irq_domain_alloc_irqs_parent(struct irq_domain *domain,
unsigned int irq_base, unsigned int nr_irqs,
@@ -1715,11 +1678,9 @@ EXPORT_SYMBOL_GPL(irq_domain_alloc_irqs_parent);
/**
* irq_domain_free_irqs_parent - Free interrupts from parent domain
+ * @domain: Domain below which interrupts must be freed
* @irq_base: Base IRQ number
* @nr_irqs: Number of IRQs to free
- *
- * Check whether the domain has been setup recursive. If not free
- * through the parent domain.
*/
void irq_domain_free_irqs_parent(struct irq_domain *domain,
unsigned int irq_base, unsigned int nr_irqs)
@@ -1898,16 +1859,15 @@ DEFINE_SHOW_ATTRIBUTE(irq_domain_debug);
static void debugfs_add_domain_dir(struct irq_domain *d)
{
- if (!d->name || !domain_dir || d->debugfs_file)
+ if (!d->name || !domain_dir)
return;
- d->debugfs_file = debugfs_create_file(d->name, 0444, domain_dir, d,
- &irq_domain_debug_fops);
+ debugfs_create_file(d->name, 0444, domain_dir, d,
+ &irq_domain_debug_fops);
}
static void debugfs_remove_domain_dir(struct irq_domain *d)
{
- debugfs_remove(d->debugfs_file);
- d->debugfs_file = NULL;
+ debugfs_remove(debugfs_lookup(d->name, domain_dir));
}
void __init irq_domain_debugfs_init(struct dentry *root)