linux-kernel - Re: [PATCH v9 11/11] crypto: qce - Switch to using BAM DMA for crypto I/O

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Message-ID: <afde1841-f809-4eb2-a024-6965539fcb94@oss.qualcomm.com>
Date: Fri, 28 Nov 2025 13:08:50 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Bartosz Golaszewski <brgl@...ev.pl>, Vinod Koul <vkoul@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Thara Gopinath <thara.gopinath@...il.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Udit Tiwari <quic_utiwari@...cinc.com>,
        Daniel Perez-Zoghbi <dperezzo@...cinc.com>,
        Md Sadre Alam <mdalam@....qualcomm.com>,
        Dmitry Baryshkov <lumag@...nel.org>
Cc: dmaengine@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-crypto@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v9 11/11] crypto: qce - Switch to using BAM DMA for crypto
 I/O

On 11/28/25 12:44 PM, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> With everything else in place, we can now switch to actually using the
> BAM DMA for register I/O with DMA engine locking.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---

[...]

> @@ -25,7 +26,7 @@ static inline u32 qce_read(struct qce_device *qce, u32 offset)
>  
>  static inline void qce_write(struct qce_device *qce, u32 offset, u32 val)
>  {
> -	writel(val, qce->base + offset);
> +	qce_write_dma(qce, offset, val);
>  }

qce_write() seems no longer useful now

Konrad