b55f3c1c4f
`CONFIG_MP_NUM_CPUS` has been deprecated for more than 2 releases, it's time to remove it. Updated all usage of `CONFIG_MP_NUM_CPUS` to `CONFIG_MP_MAX_NUM_CPUS` Signed-off-by: Yong Cong Sin <ycsin@meta.com> Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/*
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* Copyright (c) 2023 Intel corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file IRQ offload - x8664 implementation
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/init.h>
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#include <zephyr/irq_offload.h>
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#include <kernel_arch_data.h>
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#define NR_IRQ_VECTORS (IV_NR_VECTORS - IV_IRQS) /* # vectors free for IRQs */
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extern void (*x86_irq_funcs[NR_IRQ_VECTORS])(const void *arg);
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extern const void *x86_irq_args[NR_IRQ_VECTORS];
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static void (*irq_offload_funcs[CONFIG_MP_MAX_NUM_CPUS])(const void *arg);
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static const void *irq_offload_args[CONFIG_MP_MAX_NUM_CPUS];
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static void dispatcher(const void *arg)
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{
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uint8_t cpu_id = _current_cpu->id;
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if (irq_offload_funcs[cpu_id] != NULL) {
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irq_offload_funcs[cpu_id](irq_offload_args[cpu_id]);
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}
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}
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void arch_irq_offload(irq_offload_routine_t routine, const void *parameter)
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{
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int key = arch_irq_lock();
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uint8_t cpu_id = _current_cpu->id;
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irq_offload_funcs[cpu_id] = routine;
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irq_offload_args[cpu_id] = parameter;
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__asm__ volatile("int %0" : : "i" (CONFIG_IRQ_OFFLOAD_VECTOR)
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: "memory");
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arch_irq_unlock(key);
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}
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void arch_irq_offload_init(void)
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{
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x86_irq_funcs[CONFIG_IRQ_OFFLOAD_VECTOR - IV_IRQS] = dispatcher;
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}
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