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arch: arc: add support for multilevel interrupts #92269

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arch: arc: add support for multilevel interrupts #92269

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1 change: 1 addition & 0 deletions arch/arc/core/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@

zephyr_library()

zephyr_library_include_directories(${ZEPHYR_BASE}/arch/common/include)
zephyr_library_sources(
thread.c
thread_entry_wrapper.S
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44 changes: 43 additions & 1 deletion arch/arc/core/irq_manage.c
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,8 @@
* number from 16 to last IRQ number on the platform.
*/

#include "sw_isr_common.h"

#include <zephyr/kernel.h>
#include <zephyr/arch/cpu.h>
#include <zephyr/sys/__assert.h>
Expand All @@ -25,7 +27,8 @@
#include <zephyr/sw_isr_table.h>
#include <zephyr/irq.h>
#include <zephyr/sys/printk.h>

#include <zephyr/irq_multilevel.h>
#include <zephyr/irq_nextlevel.h>

/*
* storage space for the interrupt stack of fast_irq
Expand Down Expand Up @@ -187,11 +190,50 @@ int arch_irq_is_enabled(unsigned int irq)
#else
void arch_irq_enable(unsigned int irq)
{
#ifdef CONFIG_MULTI_LEVEL_INTERRUPTS
unsigned int level = irq_get_level(irq);
const struct device *dev;

#ifdef CONFIG_3RD_LEVEL_INTERRUPTS
if (level == 3) {
dev = z_get_sw_isr_device_from_irq(irq);
irq_enable_next_level(dev, irq_from_level_3(irq));
return;
}
#endif
#ifdef CONFIG_2ND_LEVEL_INTERRUPTS
if (level == 2) {
dev = z_get_sw_isr_device_from_irq(irq);
irq_enable_next_level(dev, irq_from_level_2(irq));
return;
}
#endif
#endif
z_arc_v2_irq_unit_int_enable(irq);
}

void arch_irq_disable(unsigned int irq)
{
#ifdef CONFIG_MULTI_LEVEL_INTERRUPTS
unsigned int level = irq_get_level(irq);
const struct device *dev;

#ifdef CONFIG_3RD_LEVEL_INTERRUPTS
if (level == 3) {
dev = z_get_sw_isr_device_from_irq(irq);
irq_disable_next_level(dev, irq_from_level_3(irq));
return;
}
#endif
#ifdef CONFIG_2ND_LEVEL_INTERRUPTS
if (level == 2) {
dev = z_get_sw_isr_device_from_irq(irq);
irq_disable_next_level(dev, irq_from_level_2(irq));
return;
}
#endif
#endif

z_arc_v2_irq_unit_int_disable(irq);
}

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