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Miller" , Udit Tiwari , Daniel Perez-Zoghbi , Md Sadre Alam , Dmitry Baryshkov , Peter Ujfalusi , Michal Simek 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, 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/NoTDAcsmYgBpRSQV6J8jitsCsTQ5/OCwoTR5WiYjuWzbdVisp 7XbUnPmV1mJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCaUUkFQAKCRAFnS7L/zaE w7a6D/9U3orOciDL694kuvhMWVRO2YzSkzD6x/t3Ztw2vC3h4+TiTwQEF+992n9vFsjkpatfTL2 K/FtjcWUAZ+xr3iLRhMrdRtid2SV0A6gtP5USRTjoyouHgap+p3JGs7OKq+q6l65BjTJg5vzlV6 06/ZWAnswsVPU518NSdHmcEq1hOKvcOxgowU64ok6ZvjqepcruKfTJT5uPLA48z1IhTs1A/bAE4 icRNm6iUQ5OmBbFCvJszbQ/w4ijaSd40+i2ag/I5n4G5y3XRNzO4Fu2eZOwVPr87yfDRU6qKcuD ZHHOYqm9Jo6Gfl1G0dvM/ZXtP66DqAoNJN7aaaCHtDhApBnNTc7MTquaHp853P0rO+HLDmekALP 7tj6E/jJnjVzJfEgpZu3G8Vf21O1ph+tjq9hth1EOIDIImmNtF2V0paGsTELJZYff0jAQjffAql RisGP/ZPauZRYeo7HW9WEkTVrdmKA1wYjzJENcYdFTAuPLyIl9WmJIWDJIeCHCEkGfZRBIoEc8d S14UzHCwiw3YOAtj4sEvhRtxFcNPBmSQM0L7Vg8s0sEzHddoOG6LmXM69RgZYLURpQkbiDZlIcj KrCWJ4gYv0nrXbJHVBD6+kbZfYUXY5hBQQt3UOGbV/oU3iA/aJgykcsI+TQm7saK2Ce9cpHPnBG YPGM3dadzHnJmCA== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Proofpoint-GUID: kfgMQ39QFehjuOfC3pFqAUXDbQxSvoOI X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjE5MDA4MyBTYWx0ZWRfX2hYw6e9LyMII 5Tf+i5EPxUv51F6DaxDX0M6GdZ3iYlBvNPwNiWYgjbdPW8jdVEqJ56YgcIr/h+hRX231uQxtBRa qV5sCF8xwPxQCYfubvcN1fTIcTZDqLXX/eSMNifgbJ8aZnpdNY/DvruA/NZ93Y0mVKtXSTBl9QY yZEVfEres7hz41YnAkM2wuaneDEh1aH5NAvefWpKxV6WHSn1211kV9rBqjkaQCqaUXPbo+4F0E/ mYknjdqXfQYq0+oMP5xKTdYcsVidIs2LvbBtf/6KO6574liiSaqDzoxV7sjKjb1imYh9rkuTi4V mzpr6SW3Y9tvuJ0XaFSmYtPkXEQLU0cR3TEHZb8e8hiHQmo768eHpiF87uctKjemTJ4YmI6RjLU MCoslkRwBkHAAgNwz3rSJUXRp4GrvPTrywlaUMNvseDdz267wQ+rykUbjyCh0lJKR4RdErokUai QxPS1vf8MExO/6mZP1g== X-Proofpoint-ORIG-GUID: kfgMQ39QFehjuOfC3pFqAUXDbQxSvoOI X-Authority-Analysis: v=2.4 cv=Lp2fC3dc c=1 sm=1 tr=0 ts=69452428 cx=c_pps a=7E5Bxpl4vBhpaufnMqZlrw==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=76fuQ0JqpD8MvifAs1cA:9 a=QEXdDO2ut3YA:10 a=pJ04lnu7RYOZP9TFuWaZ:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-19_03,2025-12-17_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 suspectscore=0 clxscore=1015 priorityscore=1501 impostorscore=0 adultscore=0 phishscore=0 lowpriorityscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2512190083 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