[PATCH v4 0/2] RISC-V: Probe for misaligned access speed
patchwork-bot+linux-riscv at kernel.org
patchwork-bot+linux-riscv at kernel.org
Wed Aug 30 13:30:28 PDT 2023
Hello:
This series was applied to riscv/linux.git (for-next)
by Palmer Dabbelt <palmer at rivosinc.com>:
On Fri, 18 Aug 2023 12:41:34 -0700 you wrote:
> The current setting for the hwprobe bit indicating misaligned access
> speed is controlled by a vendor-specific feature probe function. This is
> essentially a per-SoC table we have to maintain on behalf of each vendor
> going forward. Let's convert that instead to something we detect at
> runtime.
>
> We have two assembly routines at the heart of our probe: one that
> does a bunch of word-sized accesses (without aligning its input buffer),
> and the other that does byte accesses. If we can move a larger number of
> bytes using misaligned word accesses than we can with the same amount of
> time doing byte accesses, then we can declare misaligned accesses as
> "fast".
>
> [...]
Here is the summary with links:
- [v4,1/2] RISC-V: Probe for unaligned access speed
https://git.kernel.org/riscv/c/b98673c5b037
- [v4,2/2] RISC-V: alternative: Remove feature_probe_func
https://git.kernel.org/riscv/c/b6e3f6e009a1
You are awesome, thank you!
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