Release 4.18 arch/riscv/include/asm/irqflags.h

/*
 * Copyright (C) 2012 Regents of the University of California
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation, version 2.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 */


#ifndef _ASM_RISCV_IRQFLAGS_H

#define _ASM_RISCV_IRQFLAGS_H

#include <asm/processor.h>
#include <asm/csr.h>

/* read interrupt enabled status */


static inline unsigned long arch_local_save_flags(void)
{
	return csr_read(sstatus);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
16
100.00%
1
100.00%
Total
16
100.00%
1
100.00%

/* unconditionally enable interrupts */


static inline void arch_local_irq_enable(void)
{
	csr_set(sstatus, SR_SIE);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
15
93.75%
1
50.00%
Christoph Hellwig
1
6.25%
1
50.00%
Total
16
100.00%
2
100.00%

/* unconditionally disable interrupts */


static inline void arch_local_irq_disable(void)
{
	csr_clear(sstatus, SR_SIE);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
15
93.75%
1
50.00%
Christoph Hellwig
1
6.25%
1
50.00%
Total
16
100.00%
2
100.00%

/* get status and disable interrupts */


static inline unsigned long arch_local_irq_save(void)
{
	return csr_read_clear(sstatus, SR_SIE);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
17
94.44%
1
50.00%
Christoph Hellwig
1
5.56%
1
50.00%
Total
18
100.00%
2
100.00%

/* test flags */


static inline int arch_irqs_disabled_flags(unsigned long flags)
{
	return !(flags & SR_SIE);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
18
94.74%
1
50.00%
Christoph Hellwig
1
5.26%
1
50.00%
Total
19
100.00%
2
100.00%

/* test hardware interrupt enable bit */


static inline int arch_irqs_disabled(void)
{
	return arch_irqs_disabled_flags(arch_local_save_flags());
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
16
100.00%
1
100.00%
Total
16
100.00%
1
100.00%

/* set interrupt enabled status */


static inline void arch_local_irq_restore(unsigned long flags)
{
	csr_set(sstatus, flags & SR_SIE);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
19
95.00%
1
50.00%
Christoph Hellwig
1
5.00%
1
50.00%
Total
20
100.00%
2
100.00%

#endif /* _ASM_RISCV_IRQFLAGS_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
139
96.53%
1
50.00%
Christoph Hellwig
5
3.47%
1
50.00%
Total
144
100.00%
2
100.00%
Directory: arch/riscv/include/asm

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.