Hi Conor, On Tue, 15 Sep 2026 17:52:23 +0100, Conor Dooley wrote: > On Tue, Sep 15, 2026 at 03:15:35AM -0400, Guodong Xu wrote: >> Introduce a per-hart and host-wide bitmap of conformant ISA "bases" >> (named profile-class sets such as IMA and RVA23U64), computed at init >> time by riscv_init_isa_bases(). >> >> Register riscv_init_isa_bases() as an arch_initcall. That is late >> enough that core_initcall(tagged_addr_init) has probed senvcfg.PMM and >> populated have_user_pmlen_*; without that ordering, >> riscv_have_user_pmlen(7) would still return its default false and the >> RVA23U64 detection path would always bail. It is also early enough that >> arch_initcall_sync(init_hwprobe_vdso_data) finds the bases populated >> when it snapshots the hwprobe values into the vDSO data page. >> >> Consider this as the cache that subsequent consumers (hwprobe's >> RVA23U64 base behavior bit, /proc/cpuinfo's "isa bases" lines, etc.) >> can read without recomputing, which keeps them consistent with >> each other. >> >> Signed-off-by: Andrew Jones <[email protected]> >> Signed-off-by: Guodong Xu <[email protected]> > > Something is wrong here with the signoffs here, Drew's probably missing > either authorship or a Co-developed-by tag?
Thanks for the review. Yes, will fix in v8. I didn't look closely enough at authorship (which I should) when I reworked Drew's RFC into v2. His Signed-off-by was carried over, but clearly it needed more careful handling than that. Rechecking these three patches that came over from the RFC (09, 10, 11), here is what I plan to do: - Patch 10/11 (cpuinfo) is still mostly Drew's patch; I only switched it to the cached bitmap. v8 makes him the author. - Patch 09/11 and 11/11 were rewritten in v2 (the detection moved out of hwprobe into cpufeature), but part of Drew's implementation stayed. I'll adds his Co-developed-by in v8. Drew, please shout if you would like this split differently. Guodong
