Mirrors/opensbi
3
0
Fork 1
mirror of https://github.com/riscv-software-src/opensbi.git synced 2026-07-27 00:11:30 +01:00
Code Issues Packages Projects Releases Wiki Activity
1,908 Commits 4 Branches 22 Tags
f3cce5b97f15f5ca87409902ca6a856b5012a5b3
Commit Graph
2 Commits
This Branch
This Branch
All Branches
Author SHA1 Message Date
Chao-ying FuandAnup Patel 8a3071222a lib: Emulate AMO instructions when Zaamo is not available 
The AMO instructions are very critical for Linux so allow low-end
RISC-V implementations without Zaamo to boot Linux by emulating AMO
instructions using Zalrsc when OpenSBI is compiled without Zaamo.

Signed-off-by: Chao-ying Fu <cfu@mips.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Link: https://lore.kernel.org/r/20250519121207.976949-1-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
 2025-05-20 09:18:03 +05:30
Chao-ying FuandAnup Patel 995f226f3f lib: Emit lr and sc instructions based on -march flags 
When -march=rv64im_zalrsc_zicsr is used, provide atomic operations
and locks using lr and sc instructions only.

Signed-off-by: Chao-ying Fu <cfu@mips.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20250226014727.19710-1-cfu@mips.com
Signed-off-by: Anup Patel <anup@brainfault.org>
 2025-03-28 18:52:05 +05:30