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"

Include dependency graph for irq_arch.h:

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#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)