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change rustsbi and sbi call code

This commit is contained in:
hustccc 2021-01-11 03:27:05 +09:00
parent 2aea4e5555
commit b066e30130
3 changed files with 3 additions and 1 deletions
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1
bootloader/SBI/rustsbi-k210/src/main.rs
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@ -371,6 +371,7 @@ extern "C" fn start_trap_rust(trap_frame: &mut TrapFrame) {
match cause {
Trap::Exception(Exception::SupervisorEnvCall) => {
if trap_frame.a7 == 0x0A000004 && trap_frame.a6 == 0x210 {
println!("[rustsbi] set S-level external interrupt handler");
// We use implementation specific sbi_rustsbi_k210_sext function (extension
// id: 0x0A000004, function id: 0x210) to register S-level interrupt handler
// for K210 chip only. This chip uses 1.9.1 version of privileged spec,

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bootloader/SBI/sbi-k210
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3
kernel/include/sbi.h
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@ -91,6 +91,7 @@ static inline void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask,
}
static inline void sbi_set_extern_interrupt(unsigned long func_pointer) {
SBI_CALL_1(0x09, func_pointer);
asm volatile("mv a6, %0" : : "r" (0x210));
SBI_CALL_1(0x0A000004, func_pointer);
}
#endif