lib: sbi: Implement System Reset (SRST) SBI extension

The SBI SRST extension has been accepted and merged in the latest
SBI v0.3-draft specification.
(Refer, https://github.com/riscv/riscv-sbi-doc)

It allows to S-mode software to request system shutdown, cold reboot,
and warm reboot.

This patch implements SBI SRST extension as a replacement of the
legacy sbi_shutdown() call of SBI v0.1 specification.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2020-11-24 14:20:19 +05:30
committed by Anup Patel
parent 5c429ae213
commit 548d03e577
3 changed files with 64 additions and 0 deletions

View File

@@ -37,6 +37,7 @@ extern struct sbi_ecall_extension ecall_rfence;
extern struct sbi_ecall_extension ecall_ipi;
extern struct sbi_ecall_extension ecall_vendor;
extern struct sbi_ecall_extension ecall_hsm;
extern struct sbi_ecall_extension ecall_srst;
u16 sbi_ecall_version_major(void);