blob: f39134c4d77eb33e8587608f7284296611405f35 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0-only
#include <libcflat.h>
#include <asm/sbi.h>
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)
{
register uintptr_t a0 asm ("a0") = (uintptr_t)(arg0);
register uintptr_t a1 asm ("a1") = (uintptr_t)(arg1);
register uintptr_t a2 asm ("a2") = (uintptr_t)(arg2);
register uintptr_t a3 asm ("a3") = (uintptr_t)(arg3);
register uintptr_t a4 asm ("a4") = (uintptr_t)(arg4);
register uintptr_t a5 asm ("a5") = (uintptr_t)(arg5);
register uintptr_t a6 asm ("a6") = (uintptr_t)(fid);
register uintptr_t a7 asm ("a7") = (uintptr_t)(ext);
struct sbiret ret;
asm volatile (
"ecall"
: "+r" (a0), "+r" (a1)
: "r" (a2), "r" (a3), "r" (a4), "r" (a5), "r" (a6), "r" (a7)
: "memory");
ret.error = a0;
ret.value = a1;
return ret;
}
void sbi_shutdown(void)
{
sbi_ecall(SBI_EXT_SRST, 0, 0, 0, 0, 0, 0, 0);
puts("SBI shutdown failed!\n");
}
struct sbiret sbi_hart_start(unsigned long hartid, unsigned long entry, unsigned long sp)
{
return sbi_ecall(SBI_EXT_HSM, SBI_EXT_HSM_HART_START, hartid, entry, sp, 0, 0, 0);
}