t-head/thead-opensbi
1
0
Fork 0
mirror of https://github.com/revyos/thead-opensbi.git synced 2026-06-21 09:12:28 +02:00
Code Issues Packages Projects Releases Wiki Activity
5 Commits 5 Branches 9 Tags
39d1e698c9750ed3f36fb21ff280c327c142b486
Commit Graph

5 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Samuel Holland
39d1e698c9 lib: sbi_illegal_insn: Add emulation for fence.tso 
While OpenC906 appears to properly decode `fence.tso` as a fence
instruction[1], the version of the C906 taped out in the Allwinner D1
does not, and raises illegal instruction.

Handle this errata by emulating `fence.tso` as `fence rw, rw`.

[1]: https://github.com/T-head-Semi/openc906/blob/30827e7f/C906_RTL_FACTORY/gen_rtl/idu/rtl/aq_idu_id_decd.v#L2097

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Anup Patel <anup@brainfault.org>
 2023-04-12 09:21:16 +00:00
thead_admin
513f62819b Linux_SDK_V1.1.2 Linux_SDK_V1.1.2 2023-03-05 22:36:27 +08:00
thead_admin
bfbb0a7b5d Linux_SDK_V1.0.3 Linux_SDK_V1.0.3 2023-01-04 13:12:26 +08:00
thead_admin
aad6533a3b Linux_SDK_V1.0.2 Linux_SDK_V1.0.2 2022-11-22 15:53:45 +08:00
thead_admin
c0919a898e Linux_SDK_V0.9.5 Linux_SDK_V0.9.5 2022-09-13 11:10:36 +08:00