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Miller" , Udit Tiwari , Md Sadre Alam , Dmitry Baryshkov , Manivannan Sadhasivam , Stephan Gerhold , Bjorn Andersson , 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/NoTDAcsmYgBpwVmD13r2Am7+SmM6Nm34ZCXhyvI5Vew5D7Iar vEE0IzdsEeJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCacFZgwAKCRAFnS7L/zaE w2EcEACY3fCs3Yh5lWl3/XHzMLQFZNwKQZ/k9C2OXOqzLPfweIjH6GOVNQwsNp7Gs6yxHSFYAx/ XR26vYVkhBIP8DpR/mYkQNqvp189NvAsr3PGrt4xF6Iyn/CuXrbpzoVZ9ZXgwRXVVDBrhGWrKtu mdSTdIqJau2Q0n4UGzjYlbhGRncGrIGjqqme+2Fc6+dwuE0pnDS+JJ9OO9uTyuhvA5PWMcDc1L4 XMwax416HRKoAe+ffnVPKgKEQv1VCDDwFt444d3cu8G/T9vN0k+T09cQ9c3IssydxWAc4xj6fG9 UMSFSxfMQVNcjprHSi+TJUD1LCfbf2J4VlK3hkHA+ZZxBVkiF7aLQRW+lnZz+n3mro4JTu1CFBA tzksi1CUKRerz2m6FywZ1tZW3VbDipZLxUX5SZWkGwYa3XU+1kt/J2+Goy8vvJul5pKqCUyGkJW E4CN2LVhh6G4UVtumezbbh9zb+0WWPkLwyyi1Q3kXqiD/3w0ZYIU8GMPjEA79ADG9fJPXYl+u48 ed3FS4ubvxZtPgoU3EW0hZOXb5YTnoA6I6/W0IoynuvQQB1XGMIbZbO5dKpZ1b+NsLJHxEomgdy vnOQAJgvmTj55RFUQHqAyYe4xSw1hznvvNiI/B2hwntLNZ5OUSud8cSRc1eNd1/49O4zkj9yzIH zipi5FcHGyAi/PQ== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Proofpoint-GUID: S9qf1uOowuRIhFQ_8L0DzeFDEziCEgFZ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzIzMDExOCBTYWx0ZWRfX0klCW33Zlmos KVX3dH7Ems3tIQFXer4bP9jEa4rn2LyQquJTO9StvTj5i4nDbozehXKGAnVaVKMjBgm3rFwf+oW Hs4UQ9SxXOFGStlw+XMojsgzmaimYL11iTpO7B7MfRfUL6hPBQD8SZPSr/qT0NCs2znUwluYyy3 6DxkuGmN8UDwAbzL4bhiLSm24nufbSr51eCEK26XYpOsE+v8gadl0hgJwELeNYgiXa14mo4OKd4 hgc447JYYNucB9DK77ZBNSuVh1Tpr3Lk5SDNVuwIxSECxQ+sdunqIb9WfwY0KtN8iO4yFg9pLWt XmKQeu1pc5yAzw5vmyLLngEjsY9umalIOBopYYfoJEYGgMXRKZMGc+X96WQbf60c2xUO15HW3CF RDmHr+TtAQbIOEpseQpMjRVqAqOhPEMsSu+SJeOncGXiyT3bB7g92J5tMfqCR4ijURA3NNE3pCE SYExF8kxED3WMRIH24Q== X-Authority-Analysis: v=2.4 cv=CMInnBrD c=1 sm=1 tr=0 ts=69c159a7 cx=c_pps a=P2rfLEam3zuxRRdjJWA2cw==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=76fuQ0JqpD8MvifAs1cA:9 a=QEXdDO2ut3YA:10 a=ODZdjJIeia2B_SHc_B0f:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-ORIG-GUID: S9qf1uOowuRIhFQ_8L0DzeFDEziCEgFZ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-23_04,2026-03-23_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 clxscore=1015 malwarescore=0 adultscore=0 lowpriorityscore=0 priorityscore=1501 spamscore=0 phishscore=0 impostorscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603230118 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