| // 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> |
| #include <asm/trace/exceptions.h> |
| #include <asm/trace/irq_vectors.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); |
| } |
