Detect presence of FEAT_MOPS, and enable instruction set and set HWCAP2 flag
if present.
Add handler for MOE exceptions.
Sponsored by: Arm Ltd
Details
Details
- Reviewers
andrew manu jrtc27 - Group Reviewers
arm64 - Commits
- rG2a9a92ba7bd7: arm64: Enable MOPS in userspace
rG591c7a08bf8a: arm64: Enable MOPS in userspace
Diff Detail
Diff Detail
- Repository
- rG FreeBSD src repository
- Lint
Lint Not Applicable - Unit
Tests Not Applicable
Event Timeline
| sys/arm64/arm64/machdep.c | ||
|---|---|---|
| 240 | Do we need an isb here and below? I assume it's probably safe for userspace only MOPS. In the kernel I expect we would need it as there may not be a context synchronising event before a MOPS instruction is used. | |
| sys/arm64/include/armreg.h | ||
| 603–606 ↗ | (On Diff #169188) | In the Arm ARM M.a.a there is a single FormatOption field holding the old OptionA and WrongOption fields (bits 17:16). |
| sys/arm64/arm64/identcpu.c | ||
|---|---|---|
| 1098–1099 | Indented with spaces not tabs | |
| sys/arm64/include/armreg.h | ||
|---|---|---|
| 603 ↗ | (On Diff #169311) | This define through OPTION_B2 uses spaces not tabs between the name and value |
| 604 ↗ | (On Diff #169311) | The 5 lines starting here exceed 80 chars, though there are already various violations of that in this file... |
| 680 ↗ | (On Diff #169311) | Uses spaces not tab before comment |