GitHub-Mirror/opensbi
2
0
Fork 0
mirror of https://github.com/Fishwaldo/opensbi.git synced 2025-03-15 19:31:32 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

firmware: Add a barrier instruction for wait for boot hart

Browse source 
Multi-core communication via memory requires the addition of a barrier
instructions to ensure cache coherency.

Signed-off-by: Xiang Wang <wxjstz@126.com>
This commit is contained in:
Xiang Wang 2019-03-04 17:22:37 +08:00 • committed by Anup Patel
parent 1c87f0f9b1
commit 05602e2bf4
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
firmware/fw_base.S
View file

@ -114,6 +114,7 @@ _fdt_reloc_done:
/* Wait for boot hart */
_wait_for_boot_hart:
fence rw, rw
la a4, _boot_hart_done
REG_L a5, (a4)
beqz a5, _wait_for_boot_hart