| // SPDX-License-Identifier: GPL-2.0 | |
| /* | |
| * Code for supporting irq vector tracepoints. | |
| * | |
| * Copyright (C) 2013 Seiji Aguchi <seiji.aguchi@hds.com> | |
| * | |
| */ | |
| #include <linux/jump_label.h> | |
| #include <linux/atomic.h> | |
| #include <asm/hw_irq.h> | |
| #include <asm/desc.h> | |
| DEFINE_STATIC_KEY_FALSE(trace_pagefault_key); | |
| int trace_pagefault_reg(void) | |
| { | |
| static_branch_inc(&trace_pagefault_key); | |
| return 0; | |
| } | |
| void trace_pagefault_unreg(void) | |
| { | |
| static_branch_dec(&trace_pagefault_key); | |
| } | |
| #ifdef CONFIG_SMP | |
| DEFINE_STATIC_KEY_FALSE(trace_resched_ipi_key); | |
| int trace_resched_ipi_reg(void) | |
| { | |
| static_branch_inc(&trace_resched_ipi_key); | |
| return 0; | |
| } | |
| void trace_resched_ipi_unreg(void) | |
| { | |
| static_branch_dec(&trace_resched_ipi_key); | |
| } | |
| #endif |