(subset) [v1, 0/3] riscv: fix ptrace and export VLENB

[Palmer Dabbelt]

On Wed, 16 Aug 2023 15:54:47 +0000, Andy Chiu wrote:
> We add a vlenb field in Vector context and save it with the
> riscv_vstate_save() macro. It should not cause performance regression as
> VLENB is a design-time constant and is frequently used by hardware.
> Also, adding this field into the __sc_riscv_v_state may benifit us on a
> future compatibility issue becuse a hardware may have writable VLENB.
> 
> Adding and saving VLENB have an immediate benifit as it gives ptrace a
> better view of the Vector extension and makes it possible to reconstruct
> Vector register files from the dump without doing an additional csr read.
> 
> [...]

Applied, thanks!

[1/3] RISC-V: Remove ptrace support for vectors
      https://git.kernel.org/palmer/c/e3f9324b231a
[2/3] RISC-V: vector: export VLENB csr in __sc_riscv_v_state
      https://git.kernel.org/palmer/c/c35f3aa34509

Best regards,
-- 
Palmer Dabbelt <palmer at rivosinc.com>