34 lines
772 B
C
34 lines
772 B
C
#ifndef _UTILS_H_
|
|
#define _UTILS_H_
|
|
|
|
#define CPU_FREQ_HZ (50000000) // 50MHz
|
|
#define CPU_FREQ_MHZ (50) // 50MHz
|
|
|
|
|
|
#define read_csr(reg) ({ unsigned long __tmp; \
|
|
asm volatile ("csrr %0, " #reg : "=r"(__tmp)); \
|
|
__tmp; })
|
|
|
|
#define write_csr(reg, val) ({ \
|
|
if (__builtin_constant_p(val) && (unsigned long)(val) < 32) \
|
|
asm volatile ("csrw " #reg ", %0" :: "i"(val)); \
|
|
else \
|
|
asm volatile ("csrw " #reg ", %0" :: "r"(val)); })
|
|
|
|
|
|
#ifdef SIMULATION
|
|
#define set_test_pass() asm("li x27, 0x01")
|
|
#define set_test_fail() asm("li x27, 0x00")
|
|
#endif
|
|
|
|
|
|
uint64_t get_cycle_value();
|
|
void busy_wait(uint32_t us);
|
|
|
|
void global_irq_enable();
|
|
void global_irq_disable();
|
|
void mtime_irq_enable();
|
|
void mtime_irq_disable();
|
|
|
|
#endif
|