csr.h File Reference

#include <types.h>

Go to the source code of this file.

Macros
#define	csr_read(reg)
#define	csr_write(reg, val)   asm volatile("csrw " #reg ", %0" : : "r"(val))
#define	csr_set_bits(reg, bits)   asm volatile("csrs " #reg ", %0" : : "r"(bits))
#define	csr_clear_bits(reg, bits)    asm volatile("csrc " #reg ", %0" : : "r"(bits))
#define	CSR_SSTATUS_SPIE   0x20
#define	CSR_SSTATUS_SPP   0x100
#define	CSR_SIE_STIE   0x20
#define	CSR_SIE_SEIE   0x200
#define	CSR_SCAUSE_INTR   0x8000000000000000
#define	CSR_SCAUSE_TIMER_INTR   5
#define	CSR_SCAUSE_EXT_INTR   9
#define	CSR_SCAUSE_ECALL_U   8

Macro Definition Documentation

csr_clear_bits

#define csr_clear_bits	(		reg,
			bits
	)		asm volatile("csrc " #reg ", %0" : : "r"(bits))

csr_read

#define csr_read

(

reg

)

Value:

    ({                                                                         \
        usize val;                                                             \
        asm volatile("csrr %0, " #reg : "=r"(val));                            \
        val;                                                                   \
    })

CSR_SCAUSE_ECALL_U

#define CSR_SCAUSE_ECALL_U   8

CSR_SCAUSE_EXT_INTR

#define CSR_SCAUSE_EXT_INTR   9

CSR_SCAUSE_INTR

#define CSR_SCAUSE_INTR   0x8000000000000000

CSR_SCAUSE_TIMER_INTR

#define CSR_SCAUSE_TIMER_INTR   5

csr_set_bits

#define csr_set_bits	(		reg,
			bits
	)		asm volatile("csrs " #reg ", %0" : : "r"(bits))

CSR_SIE_SEIE

#define CSR_SIE_SEIE   0x200

CSR_SIE_STIE

#define CSR_SIE_STIE   0x20

CSR_SSTATUS_SPIE

#define CSR_SSTATUS_SPIE   0x20

CSR_SSTATUS_SPP

#define CSR_SSTATUS_SPP   0x100

csr_write

#define csr_write	(		reg,
			val
	)		asm volatile("csrw " #reg ", %0" : : "r"(val))