Re: [PATCH RESEND v4 0/2] riscv: errata: thead: use riscv_nonstd_cache_ops for CMO - patchwork-bot+linux-riscv

From: patchwork-bot+linux-riscv@kernel.org
To: Jisheng Zhang <jszhang@kernel.org>
Cc: linux-riscv@lists.infradead.org, paul.walmsley@sifive.com,
	palmer@dabbelt.com, aou@eecs.berkeley.edu,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND v4 0/2] riscv: errata: thead: use riscv_nonstd_cache_ops for CMO
Date: Thu, 11 Jan 2024 14:50:37 +0000	[thread overview]
Message-ID: <170498463765.20080.13600497512635410658.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20231114143338.2406-1-jszhang@kernel.org>

Hello:

This series was applied to riscv/linux.git (for-next)
by Palmer Dabbelt <palmer@rivosinc.com>:

On Tue, 14 Nov 2023 22:33:36 +0800 you wrote:
> Previously, we use alternative mechanism to dynamically patch
> the CMO operations for THEAD C906/C910 during boot for performance
> reason. But as pointed out by Arnd, "there is already a significant
> cost in accessing the invalidated cache lines afterwards, which is
> likely going to be much higher than the cost of an indirect branch".
> And indeed, there's no performance difference with GMAC and EMMC per
> my test on Sipeed Lichee Pi 4A board.
> 
> [...]

Here is the summary with links:
  - [RESEND,v4,1/2] riscv: errata: thead: use riscv_nonstd_cache_ops for CMO
    https://git.kernel.org/riscv/c/a4ff64edf9ed
  - [RESEND,v4,2/2] riscv: errata: thead: use pa based instructions for CMO
    https://git.kernel.org/riscv/c/3690492612ec

You are awesome, thank you!
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