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([2a01:e0a:982:cbb0:fcee:f026:296d:135f]) by smtp.gmail.com with ESMTPSA id ck13-20020a5d5e8d000000b0033b684d6d5csm7440536wrb.20.2024.02.12.09.11.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 12 Feb 2024 09:11:21 -0800 (PST) Message-ID: <6cbbf8ff-8e8b-4b37-846c-a9d4084f3f2d@linaro.org> Date: Mon, 12 Feb 2024 18:11:20 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: neil.armstrong@linaro.org Subject: Re: [PATCH v4 04/20] drivers: crypto: meson: add MMIO helpers Content-Language: en-US, fr To: Alexey Romanov , clabbe@baylibre.com, herbert@gondor.apana.org.au, davem@davemloft.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, khilman@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, vadim.fedorenko@linux.dev Cc: linux-crypto@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@salutedevices.com References: <20240212135108.549755-1-avromanov@salutedevices.com> <20240212135108.549755-5-avromanov@salutedevices.com> Autocrypt: addr=neil.armstrong@linaro.org; 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charset="us-ascii"; Format="flowed" Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On 12/02/2024 14:50, Alexey Romanov wrote: > Add MMIO access helpers: meson_dma_start() and meson_dma_ready(). > > Signed-off-by: Alexey Romanov > --- > drivers/crypto/amlogic/amlogic-gxl-cipher.c | 2 +- > drivers/crypto/amlogic/amlogic-gxl-core.c | 24 ++++++++++++++++----- > drivers/crypto/amlogic/amlogic-gxl.h | 2 ++ > 3 files changed, 22 insertions(+), 6 deletions(-) > > diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c > index 7eff3ae7356f..1fe916b0a138 100644 > --- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c > +++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c > @@ -225,7 +225,7 @@ static int meson_cipher(struct skcipher_request *areq) > > reinit_completion(&mc->chanlist[flow].complete); > mc->chanlist[flow].status = 0; > - writel(mc->chanlist[flow].t_phy | 2, mc->base + ((mc->pdata->descs_reg + flow) << 2)); > + meson_dma_start(mc, flow); > wait_for_completion_interruptible_timeout(&mc->chanlist[flow].complete, > msecs_to_jiffies(500)); > if (mc->chanlist[flow].status == 0) { > diff --git a/drivers/crypto/amlogic/amlogic-gxl-core.c b/drivers/crypto/amlogic/amlogic-gxl-core.c > index 54113c524ec5..372c30f72072 100644 > --- a/drivers/crypto/amlogic/amlogic-gxl-core.c > +++ b/drivers/crypto/amlogic/amlogic-gxl-core.c > @@ -23,18 +23,32 @@ > > #include "amlogic-gxl.h" > > +void meson_dma_start(struct meson_dev *mc, int flow) > +{ > + u32 offset = (mc->pdata->descs_reg + flow) << 2; > + > + writel(mc->chanlist[flow].t_phy | 2, mc->base + offset); > +} > + > +static bool meson_dma_ready(struct meson_dev *mc, int flow) > +{ > + u32 offset = (mc->pdata->status_reg + flow) << 2; > + u32 data = readl(mc->base + offset); > + > + if (data) > + writel_relaxed(0xF, mc->base + offset); > + > + return data; > +} > + > static irqreturn_t meson_irq_handler(int irq, void *data) > { > struct meson_dev *mc = (struct meson_dev *)data; > int flow; > - u32 p; > > for (flow = 0; flow < mc->flow_cnt; flow++) { > if (mc->chanlist[flow].irq == irq) { > - p = readl(mc->base + ((mc->pdata->status_reg + flow) << 2)); > - if (p) { > - writel_relaxed(0xF, mc->base + > - ((mc->pdata->status_reg + flow) << 2)); > + if (meson_dma_ready(mc, flow)) { > mc->chanlist[flow].status = 1; > complete(&mc->chanlist[flow].complete); > return IRQ_HANDLED; > diff --git a/drivers/crypto/amlogic/amlogic-gxl.h b/drivers/crypto/amlogic/amlogic-gxl.h > index a36b9bac63a0..59fc6a67e0a9 100644 > --- a/drivers/crypto/amlogic/amlogic-gxl.h > +++ b/drivers/crypto/amlogic/amlogic-gxl.h > @@ -163,6 +163,8 @@ struct meson_alg_template { > #endif > }; > > +void meson_dma_start(struct meson_dev *mc, int flow); > + > int meson_enqueue(struct crypto_async_request *areq, u32 type); > > int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key, Reviewed-by: Neil Armstrong _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic