| /* |
| * Copyright (c) 2016 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <kernel.h> |
| #include <kernel_structs.h> |
| #include <irq_offload.h> |
| |
| volatile irq_offload_routine_t _offload_routine; |
| static volatile void *offload_param; |
| |
| /* Called by _enter_irq if it was passed 0 for ipending. |
| * Just in case the offload routine itself generates an unhandled |
| * exception, clear the offload_routine global before executing. |
| */ |
| void _irq_do_offload(void) |
| { |
| irq_offload_routine_t tmp; |
| |
| if (!_offload_routine) { |
| return; |
| } |
| |
| tmp = _offload_routine; |
| _offload_routine = NULL; |
| |
| tmp((void *)offload_param); |
| } |
| |
| void irq_offload(irq_offload_routine_t routine, void *parameter) |
| { |
| int key; |
| |
| key = irq_lock(); |
| _offload_routine = routine; |
| offload_param = parameter; |
| |
| __asm__ volatile ("trap"); |
| |
| irq_unlock(key); |
| } |
| |