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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2018 Intel Corporation
*/
#ifndef IGT_ATOMIC_H
#define IGT_ATOMIC_H
#include <linux/preempt.h>
#include <linux/bottom_half.h>
#include <linux/irqflags.h>
static void __preempt_begin(void)
{
preempt_disable();
}
static void __preempt_end(void)
{
preempt_enable();
}
static void __softirq_begin(void)
{
local_bh_disable();
}
static void __softirq_end(void)
{
local_bh_enable();
}
static void __hardirq_begin(void)
{
local_irq_disable();
}
static void __hardirq_end(void)
{
local_irq_enable();
}
struct igt_atomic_section {
const char *name;
void (*critical_section_begin)(void);
void (*critical_section_end)(void);
};
static const struct igt_atomic_section igt_atomic_phases[] = {
{ "preempt", __preempt_begin, __preempt_end },
{ "softirq", __softirq_begin, __softirq_end },
{ "hardirq", __hardirq_begin, __hardirq_end },
{ }
};
#endif /* IGT_ATOMIC_H */
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