Page MenuHomeFreeBSD

riscv: S-mode extension parsing
ClosedPublic

Authored by mhorne on May 23 2023, 5:16 PM.
Tags
None
Referenced Files
Unknown Object (File)
Wed, Jul 10, 12:17 PM
Unknown Object (File)
Wed, Jul 10, 12:07 PM
Unknown Object (File)
Wed, Jul 10, 12:07 PM
Unknown Object (File)
Mon, Jul 8, 3:38 AM
Unknown Object (File)
Mon, Jun 24, 2:22 AM
Unknown Object (File)
May 18 2024, 12:56 AM
Unknown Object (File)
May 17 2024, 3:18 PM
Unknown Object (File)
May 13 2024, 3:48 PM
Subscribers

Details

Summary

There are now several Supervisor-mode extensions that have entered the
'ratified' status, so begin parsing and reporting a few of these.

Recognize the following extensions:

  • Sstc: stimecmp/vstimecmp CSR
  • Svnapot: NAPOT* translation contiguity
  • Svpbmt: page-based memory types
  • Svinval: fine-grained TLB invalidation instructions
  • Sscofpmf: performance counter overflow

*i.e. "naturally aligned power-of-2" page granularity

For now, provide globals for Sstc and Sscofpmf, as we will make use of
these in the near future.

Plus, update the copyright statement after my recent work on this file.

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Not Applicable
Unit
Tests Not Applicable