77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
/*
|
|
* Copyright (C) 2018 Intel Corporation. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef RTL_H
|
|
#define RTL_H
|
|
|
|
#include <types.h>
|
|
|
|
union u_qword {
|
|
struct {
|
|
uint32_t low;
|
|
uint32_t high;
|
|
} dwords;
|
|
|
|
uint64_t qword;
|
|
|
|
};
|
|
|
|
/* MACRO related to string */
|
|
#define ULONG_MAX ((uint64_t)(~0UL)) /* 0xFFFFFFFF */
|
|
#define LONG_MAX (ULONG_MAX >> 1U) /* 0x7FFFFFFF */
|
|
#define LONG_MIN (~LONG_MAX) /* 0x80000000 */
|
|
|
|
static inline bool is_space(char c)
|
|
{
|
|
return ((c == ' ') || (c == '\t'));
|
|
}
|
|
|
|
/* Function prototypes */
|
|
void udelay(uint32_t us);
|
|
int32_t strcmp(const char *s1_arg, const char *s2_arg);
|
|
int32_t strncmp(const char *s1_arg, const char *s2_arg, size_t n_arg);
|
|
char *strncpy_s(char *d_arg, size_t dmax, const char *s_arg, size_t slen_arg);
|
|
char *strchr(char *s_arg, char ch);
|
|
size_t strnlen_s(const char *str_arg, size_t maxlen_arg);
|
|
void *memset(void *base, uint8_t v, size_t n);
|
|
void *memcpy_s(void *d, size_t dmax, const void *s, size_t slen);
|
|
int64_t strtol_deci(const char *nptr);
|
|
uint64_t strtoul_hex(const char *nptr);
|
|
char *strstr_s(const char *str1, size_t maxlen1,
|
|
const char *str2, size_t maxlen2);
|
|
|
|
/**
|
|
* Frequency of TSC in KHz (where 1KHz = 1000Hz). Only valid after
|
|
* calibrate_tsc() returns.
|
|
*/
|
|
extern uint32_t tsc_khz;
|
|
|
|
static inline uint64_t us_to_ticks(uint32_t us)
|
|
{
|
|
return (((uint64_t)us * (uint64_t)tsc_khz) / 1000UL);
|
|
}
|
|
|
|
#define CYCLES_PER_MS us_to_ticks(1000U)
|
|
|
|
static inline uint64_t ticks_to_us(uint64_t ticks)
|
|
{
|
|
return (ticks * 1000UL) / (uint64_t)tsc_khz;
|
|
}
|
|
|
|
static inline uint64_t ticks_to_ms(uint64_t ticks)
|
|
{
|
|
return ticks / (uint64_t)tsc_khz;
|
|
}
|
|
|
|
static inline uint64_t rdtsc(void)
|
|
{
|
|
uint32_t lo, hi;
|
|
|
|
asm volatile("rdtsc" : "=a" (lo), "=d" (hi));
|
|
return ((uint64_t)hi << 32U) | lo;
|
|
}
|
|
#endif /* RTL_H */
|