Re: [PATCH v5] riscv: Optimize crc32 with Zbc extension
From: patchwork-bot+linux-riscv
Date: Fri Jul 12 2024 - 06:20:45 EST
Hello:
This patch was applied to riscv/linux.git (for-next)
by Palmer Dabbelt <palmer@xxxxxxxxxxxx>:
On Fri, 21 Jun 2024 13:47:07 +0800 you wrote:
> As suggested by the B-ext spec, the Zbc (carry-less multiplication)
> instructions can be used to accelerate CRC calculations. Currently, the
> crc32 is the most widely used crc function inside kernel, so this patch
> focuses on the optimization of just the crc32 APIs.
>
> Compared with the current table-lookup based optimization, Zbc based
> optimization can also achieve large stride during CRC calculation loop,
> meantime, it avoids the memory access latency of the table-lookup based
> implementation and it reduces memory footprint.
>
> [...]
Here is the summary with links:
- [v5] riscv: Optimize crc32 with Zbc extension
https://git.kernel.org/riscv/c/a43fe27d6503
You are awesome, thank you!
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