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lx_emul: allow different irqchip declarations

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To enable other irqchip declarations beyond the lx_emul generic code base,
make the ARM specific initialization routine public.

Ref genodelabs/genode#4651
This commit is contained in:
Stefan Kalkowski 2022-10-26 17:28:30 +02:00 committed by Christian Helmuth
parent b2189ae88b
commit 9482355c47
3 changed files with 18 additions and 12 deletions
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2
repos/dde_linux/src/include/lx_emul/irq.h
View File

@ -19,6 +19,7 @@ extern "C" {
#endif
struct irq_desc;
struct device_node;
void lx_emul_irq_unmask(unsigned int irq);
@ -32,6 +33,7 @@ extern void * lx_emul_irq_task_struct;
unsigned int lx_emul_irq_last(void);
int lx_emul_irq_init(struct device_node *node, struct device_node *parent);
#ifdef __cplusplus
}
#endif

22
repos/dde_linux/src/lib/lx_emul/spec/arm/irqchip.c
View File

@ -68,6 +68,12 @@ static int dde_domain_translate(struct irq_domain * d,
unsigned long * hwirq,
unsigned int * type)
{
if (fwspec->param_count == 1) {
*hwirq = fwspec->param[0];
*type = 0;
return 0;
}
if (is_of_node(fwspec->fwnode)) {
if (fwspec->param_count != 3 || fwspec->param[0] != 0)
return -EINVAL;
@ -114,17 +120,9 @@ static const struct irq_domain_ops dde_irqchip_data_domain_ops = {
};
static const struct of_device_id dde_of_match[] = {
{ .compatible = "arm,gic-v3", .data = (const void *) 4 },
{ .compatible = "arm,cortex-a9-gic", .data = (const void *) 4 },
{ .compatible = "arm,gic-400", .data = (const void *) 4 },
{ /* END */ }
};
static struct irq_domain *dde_irq_domain;
static int __init dde_irqchip_init(struct device_node *node,
struct device_node *parent)
int lx_emul_irq_init(struct device_node *node, struct device_node *parent)
{
dde_irq_domain = irq_domain_create_tree(&node->fwnode,
&dde_irqchip_data_domain_ops, NULL);
@ -160,9 +158,9 @@ void lx_emul_register_of_irqchip_initcall(char const *compat, void *fn)
}
IRQCHIP_DECLARE(dde_gic_v3, "arm,gic-v3", dde_irqchip_init);
IRQCHIP_DECLARE(dde_gic_a9, "arm,cortex-a9-gic", dde_irqchip_init);
IRQCHIP_DECLARE(dde_gic_400, "arm,gic-400", dde_irqchip_init);
IRQCHIP_DECLARE(dde_gic_v3, "arm,gic-v3", lx_emul_irq_init);
IRQCHIP_DECLARE(dde_gic_a9, "arm,cortex-a9-gic", lx_emul_irq_init);
IRQCHIP_DECLARE(dde_gic_400, "arm,gic-400", lx_emul_irq_init);
int lx_emul_irq_task_function(void * data)

6
repos/dde_linux/src/lib/lx_emul/spec/x86/irqchip.c
View File

@ -31,6 +31,12 @@ static void dde_irq_mask(struct irq_data *d)
}
int lx_emul_irq_init(struct device_node *node, struct device_node *parent)
{
return 0;
}
struct irq_chip dde_irqchip_data_chip = {
.name = "dde-irqs",
.irq_mask = dde_irq_mask,