irq_arch.h File Reference

Implementation of the kernels irq interface. More...

Detailed Description

Implementation of the kernels irq interface.

Author

Ken Rabold

Alexandre Abadie alexa.nosp@m.ndre.nosp@m..abad.nosp@m.ie@i.nosp@m.nria..nosp@m.fr

Marian Buschsieweke maria.nosp@m.n.bu.nosp@m.schsi.nosp@m.ewek.nosp@m.e@ovg.nosp@m.u.de

Definition in file irq_arch.h.

#include <stdint.h>
#include "irq.h"
#include "vendor/riscv_csr.h"

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Go to the source code of this file.

#define	CPU_CSR_MCAUSE_CAUSE_MSK   (0x0fffu)
	Bit mask for the MCAUSE register.
volatile int	riscv_in_isr
static unsigned int	irq_enable (void)
	Enable all maskable interrupts.
static unsigned int	irq_disable (void)
	Disable all maskable interrupts.
static void	irq_restore (unsigned int state)
	Restore the state of the IRQ flags.
static bool	irq_is_in (void)
	See if the current context is inside an ISR.
static bool	irq_is_enabled (void)

Macro Definition Documentation

CPU_CSR_MCAUSE_CAUSE_MSK

#define CPU_CSR_MCAUSE_CAUSE_MSK   (0x0fffu)

Bit mask for the MCAUSE register.

Definition at line 38 of file irq_arch.h.

Function Documentation

irq_disable()

static unsigned int irq_disable ( void  )

inlinestatic

Disable all maskable interrupts.

Definition at line 62 of file irq_arch.h.

irq_enable()

static unsigned int irq_enable ( void  )

inlinestatic

Enable all maskable interrupts.

Definition at line 45 of file irq_arch.h.

irq_is_enabled()

static bool irq_is_enabled ( void  )

inlinestatic

Definition at line 100 of file irq_arch.h.

irq_is_in()

static bool irq_is_in ( void  )

inlinestatic

See if the current context is inside an ISR.

Definition at line 95 of file irq_arch.h.

irq_restore()

static void irq_restore ( unsigned int  state )

inlinestatic

Restore the state of the IRQ flags.

Definition at line 80 of file irq_arch.h.