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Miller" , Udit Tiwari , Daniel Perez-Zoghbi , Md Sadre Alam , Dmitry Baryshkov , Peter Ujfalusi , Michal Simek , Frank Li Cc: dmaengine@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, brgl@kernel.org, Bartosz Golaszewski , Bartosz Golaszewski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=3159; i=bartosz.golaszewski@oss.qualcomm.com; h=from:subject:message-id; bh=gRGqUxioVpJcY9zBfeIZn1vIilzfanwkfyseaIOaQFk=; b=owEBbQKS/ZANAwAKAQWdLsv/NoTDAcsmYgBppbNoDslcDGElaIAuZqmx28V75+Ght512gj9uO 9BTyLYxQoGJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCaaWzaAAKCRAFnS7L/zaE w7KfD/9BNxHL3nf9PbluMpylf2ev68g/KfEFzZeeTiPet/o+UvV5i0+4a0Qfj/vCdJTSNJREmRP REp30vj4p6T6SLQzbZwAUS0SVyjTlWlcHvqv/R1lANqL8DUysFR+1f9+wJskMhwpUoFRuZHCtEi iftJpRpd667KdkazXCISt13fJ/32FARqxK1iTWUQcs4OJah6ReHGal34HphX+Oj0AZZIvI/jKRx WD5rk0pfsfSxUnNPxzwTZWQL+UmiJg0ipnOFGsh2pO8mSkiR3CEcHqPUbOqACMRrQvT39J0jlYG rnXGeAHnCyRY33edRQN6k7nY5C/zdN6IlAavw5egTuYHZ97LOqPT1D2l9tlhiBC+fF26f4A6pOl +p8WUhe9ZNKYMQ9GTOUEzP2Lu7pXC/sXi9n/YtKeXDauC1gzAjBHm2W7WhgaKzNfXDprJS6cWGq IRrNpy1l6nJ8GB3DrNzQCVSrxjnEE9dgpNWiO4NVzdW3lDDVBG5W7FRoA9brtGvu1xNrU/Pq+Tk uXvURGBIyMEmRKMw4awIsY77OWlpiWqY50TUTlxK8E+lOlK6Vp119wKAokr6yaQSJhWhthuC+Uw FYXFrDXaoPkLTvhcZFf27Wp+8oA8zsEY48Ejpi2ihflYE4QJZwQ7HVNxGubyakYL6oVmVXMM1tb v/CY6qcEoGSwXoQ== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Authority-Analysis: v=2.4 cv=GMMF0+NK c=1 sm=1 tr=0 ts=69a5b37b cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=76fuQ0JqpD8MvifAs1cA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAyMDEzMyBTYWx0ZWRfX8EIkFAvPdDBJ Vj2m7lFoYIb35W4sdnOKf38m1BBruFiARCNW+t2Lvt1cViJLGuPXu1YxkqPl5RanYEpp0AXVQTa EdJYsPAr5f5NwXasnPFgmADVQIz9gWgSfm87yCQBoI5bsizH4CqR6nRT+82GsKemxj4bl4U5KAV 5eIzsmGGFtz7EKxfLmBUj3NhbV3WGtSuqKn4p6l1EiQc8kKieQt/PXw/ufUB81iWKkUb/AFxFw6 HVdzFLSjMf5tYG2SULP3KiZ/WFcyTGeHduLj07Up+ruzfAHD5u3STVhkNc5guVEk7RunFipTZmV CyWKGhsT4qGdg8F1SI+lIiJ7DEubq5skrGn9itKeysKxuzN19NWzvUuzqt9osimXKibBTFg7skT d8sBD2zlAsz8yPRLS3kjVDTVy/cmwpiEsFJUKzPb/6y8Obycc3sKD9bKlIODjNGD/xI3AS2W9qR oU43TZwHTXxv2KQrpCA== X-Proofpoint-GUID: 8oTRpwROUXWTDWj2_oKLJ05qDRllbQu1 X-Proofpoint-ORIG-GUID: 8oTRpwROUXWTDWj2_oKLJ05qDRllbQu1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-02_03,2026-03-02_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 clxscore=1015 lowpriorityscore=0 spamscore=0 adultscore=0 priorityscore=1501 impostorscore=0 phishscore=0 malwarescore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603020133 From: Bartosz Golaszewski As the first step in converting the driver to using DMA for register I/O, let's map the crypto memory range. Signed-off-by: Bartosz Golaszewski Signed-off-by: Bartosz Golaszewski --- drivers/crypto/qce/core.c | 25 +++++++++++++++++++++++-- drivers/crypto/qce/core.h | 6 ++++++ 2 files changed, 29 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/qce/core.c b/drivers/crypto/qce/core.c index 8b7bcd0c420c45caf8b29e5455e0f384fd5c5616..2667fcd67fee826a44080da8f88= a3e2abbb9b2cf 100644 --- a/drivers/crypto/qce/core.c +++ b/drivers/crypto/qce/core.c @@ -185,10 +185,19 @@ static int qce_check_version(struct qce_device *qce) return 0; } =20 +static void qce_crypto_unmap_dma(void *data) +{ + struct qce_device *qce =3D data; + + dma_unmap_resource(qce->dev, qce->base_dma, qce->dma_size, + DMA_BIDIRECTIONAL, 0); +} + static int qce_crypto_probe(struct platform_device *pdev) { struct device *dev =3D &pdev->dev; struct qce_device *qce; + struct resource *res; int ret; =20 qce =3D devm_kzalloc(dev, sizeof(*qce), GFP_KERNEL); @@ -198,7 +207,7 @@ static int qce_crypto_probe(struct platform_device *pde= v) qce->dev =3D dev; platform_set_drvdata(pdev, qce); =20 - qce->base =3D devm_platform_ioremap_resource(pdev, 0); + qce->base =3D devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(qce->base)) return PTR_ERR(qce->base); =20 @@ -244,7 +253,19 @@ static int qce_crypto_probe(struct platform_device *pd= ev) qce->async_req_enqueue =3D qce_async_request_enqueue; qce->async_req_done =3D qce_async_request_done; =20 - return devm_qce_register_algs(qce); + ret =3D devm_qce_register_algs(qce); + if (ret) + return ret; + + qce->dma_size =3D resource_size(res); + qce->base_dma =3D dma_map_resource(dev, res->start, qce->dma_size, + DMA_BIDIRECTIONAL, 0); + qce->base_phys =3D res->start; + ret =3D dma_mapping_error(dev, qce->base_dma); + if (ret) + return ret; + + return devm_add_action_or_reset(qce->dev, qce_crypto_unmap_dma, qce); } =20 static const struct of_device_id qce_crypto_of_match[] =3D { diff --git a/drivers/crypto/qce/core.h b/drivers/crypto/qce/core.h index f092ce2d3b04a936a37805c20ac5ba78d8fdd2df..a80e12eac6c87e5321cce16c56a= 4bf5003474ef0 100644 --- a/drivers/crypto/qce/core.h +++ b/drivers/crypto/qce/core.h @@ -27,6 +27,9 @@ * @dma: pointer to dma data * @burst_size: the crypto burst size * @pipe_pair_id: which pipe pair id the device using + * @base_dma: base DMA address + * @base_phys: base physical address + * @dma_size: size of memory mapped for DMA * @async_req_enqueue: invoked by every algorithm to enqueue a request * @async_req_done: invoked by every algorithm to finish its request */ @@ -43,6 +46,9 @@ struct qce_device { struct qce_dma_data dma; int burst_size; unsigned int pipe_pair_id; + dma_addr_t base_dma; + phys_addr_t base_phys; + size_t dma_size; int (*async_req_enqueue)(struct qce_device *qce, struct crypto_async_request *req); void (*async_req_done)(struct qce_device *qce, int ret); --=20 2.47.3