linux-kernel - Re: [PATCH] RISC-V: Define pgprot_dmacoherent() for non-coherent devices

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Message-Id: 
 <176080329274.3028979.8344603968685020251.git-patchwork-notify@kernel.org>
Date: Sat, 18 Oct 2025 16:01:32 +0000
From: patchwork-bot+linux-riscv@...nel.org
To: Anup Patel <apatel@...tanamicro.com>
Cc: linux-riscv@...ts.infradead.org, sunilvl@...tanamicro.com,
 rafael@...nel.org, palmer@...belt.com, paul.walmsley@...ive.com,
 alex@...ti.fr, atish.patra@...ux.dev, ajones@...tanamicro.com,
 anup@...infault.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] RISC-V: Define pgprot_dmacoherent() for non-coherent
 devices

Hello:

This patch was applied to riscv/linux.git (fixes)
by Paul Walmsley <pjw@...nel.org>:

On Wed, 20 Aug 2025 20:53:16 +0530 you wrote:
> The pgprot_dmacoherent() is used when allocating memory for
> non-coherent devices and by default pgprot_dmacoherent() is
> same as pgprot_noncached() unless architecture overrides it.
> 
> Currently, there is no pgprot_dmacoherent() definition for
> RISC-V hence non-coherent device memory is being mapped as
> IO thereby making CPU access to such memory slow.
> 
> [...]

Here is the summary with links:
  - RISC-V: Define pgprot_dmacoherent() for non-coherent devices
    https://git.kernel.org/riscv/c/ca525d53f994

You are awesome, thank you!
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