diff options
Diffstat (limited to 'sys/include')
| -rw-r--r-- | sys/include/printf.h | 1 | ||||
| -rw-r--r-- | sys/include/sbi.h | 74 | ||||
| -rw-r--r-- | sys/include/spinlock.h | 8 |
3 files changed, 74 insertions, 9 deletions
diff --git a/sys/include/printf.h b/sys/include/printf.h index 76debc3..fd9a092 100644 --- a/sys/include/printf.h +++ b/sys/include/printf.h @@ -2,6 +2,7 @@ #define _KPRINTF_H int puts(const char *); +void printf_init(void); void printf(const char *, ...); #endif /* _KPRINTF_H */ diff --git a/sys/include/sbi.h b/sys/include/sbi.h index 0dbcd02..1c0fc7f 100644 --- a/sys/include/sbi.h +++ b/sys/include/sbi.h @@ -1,16 +1,76 @@ -#ifndef _SBICALL_H -#define _SBICALL_H +#ifndef _SBI_H +#define _SBI_H struct sbiret { long err; long val; }; -struct sbiret sbi_ecall(int _eid, int _fid, unsigned long _a0, unsigned long _a1, - unsigned long _a2, unsigned long _a3, unsigned long _a4, unsigned long _a5); +#define SBI_SUCCESS 0 +#define SBI_ERR_FAILED -1 +#define SBI_ERR_NOT_SUPPORTED -2 +#define SBI_ERR_INVALD_PARAM -3 +#define SBI_ERR_DENIED -4 +#define SBI_ERR_INVALID_ADDRESS -5 +#define SBI_ERR_ALREADY_AVAILABLE -6 +#define SBI_ERR_ALREADY_STARTED -7 +#define SBI_ERR_ALREADY_STOPPED -8 -void sbi_console_putchar(int c); -void sbi_shutdown(void); +enum HART_STATUS { + STARTED, + STOPPED, + START_PENDING, + STOP_PENDING, + SUSPENDED, + SUSPEND_PENDING, + RESUME_PENDING +}; + +static inline struct sbiret +sbi_ecall(int ext, int fid, unsigned long arg0, + unsigned long arg1, unsigned long arg2, + unsigned long arg3, unsigned long arg4, + unsigned long arg5) +{ + struct sbiret ret; + + register unsigned long a0 asm ("a0") = (unsigned long)(arg0); + register unsigned long a1 asm ("a1") = (unsigned long)(arg1); + register unsigned long a2 asm ("a2") = (unsigned long)(arg2); + register unsigned long a3 asm ("a3") = (unsigned long)(arg3); + register unsigned long a4 asm ("a4") = (unsigned long)(arg4); + register unsigned long a5 asm ("a5") = (unsigned long)(arg5); + register unsigned long a6 asm ("a6") = (unsigned long)(fid); + register unsigned long a7 asm ("a7") = (unsigned long)(ext); + asm volatile ("ecall" + : "+r" (a0), "+r" (a1) + : "r" (a2), "r" (a3), "r" (a4), "r" (a5), "r" (a6), "r" (a7) + : "memory"); + ret.err = a0; + ret.val = a1; + + return ret; +} + +static inline void +sbi_console_putchar(int c) +{ + sbi_ecall(1, 0, c, 0, 0, 0, 0, 0); +} + +static inline void +sbi_shutdown(void) +{ + sbi_ecall(8, 0, 0, 0, 0, 0, 0, 0); +} + +static inline struct sbiret +sbi_hart_start(unsigned long hartid, unsigned long start_addr, unsigned long opaque) +{ + struct sbiret r = sbi_ecall(0x48534D, 0, hartid, start_addr, opaque, 0, 0, 0); + return r; +} +#define _start_hart(tp, a) sbi_hart_start(tp, a, 0); -#endif /* _SBICALL_H */ +#endif /* _SBI_H */ diff --git a/sys/include/spinlock.h b/sys/include/spinlock.h index 3400445..ef81499 100644 --- a/sys/include/spinlock.h +++ b/sys/include/spinlock.h @@ -3,9 +3,13 @@ struct spinlock { int locked; - const char *name; + int tp; }; -void initlock(struct spinlock *, const char *); +void initlock(struct spinlock *); + +void acquire(struct spinlock *); + +void release(struct spinlock *); #endif /* _LOCK_H */ |