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Mon, 14 Oct 2024 09:07:52 GMT Received: from hu-dikshita-hyd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Mon, 14 Oct 2024 02:07:47 -0700 From: Dikshita Agarwal Date: Mon, 14 Oct 2024 14:37:24 +0530 Subject: [PATCH v4 03/28] media: iris: implement iris v4l2 file ops Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <20241014-qcom-video-iris-v4-v4-3-c5eaa4e9ab9e@quicinc.com> References: <20241014-qcom-video-iris-v4-v4-0-c5eaa4e9ab9e@quicinc.com> In-Reply-To: <20241014-qcom-video-iris-v4-v4-0-c5eaa4e9ab9e@quicinc.com> To: Vikash Garodia , Abhinav Kumar , Mauro Carvalho Chehab , "Rob Herring" , Krzysztof Kozlowski , "Conor Dooley" , Philipp Zabel CC: Hans Verkuil , Sebastian Fricke , , , , , Dikshita Agarwal X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1728896853; 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Open: Configure the vb2 queue and v4l2 file handler. Allocate a video instance and add the instance to core instance list. Close: Free the instance and remove it from core instance list. Signed-off-by: Dikshita Agarwal --- drivers/media/platform/qcom/iris/Kconfig | 1 + drivers/media/platform/qcom/iris/Makefile | 5 +- drivers/media/platform/qcom/iris/iris_core.h | 2 + drivers/media/platform/qcom/iris/iris_hfi_gen1.h | 13 ++ .../platform/qcom/iris/iris_hfi_gen1_command.c | 12 ++ drivers/media/platform/qcom/iris/iris_hfi_gen2.h | 22 +++ .../platform/qcom/iris/iris_hfi_gen2_command.c | 11 ++ drivers/media/platform/qcom/iris/iris_instance.h | 31 +++++ .../platform/qcom/iris/iris_platform_common.h | 1 + .../platform/qcom/iris/iris_platform_sm8550.c | 2 + drivers/media/platform/qcom/iris/iris_probe.c | 3 + drivers/media/platform/qcom/iris/iris_vidc.c | 147 +++++++++++++++++++++ drivers/media/platform/qcom/iris/iris_vidc.h | 15 +++ 13 files changed, 264 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/qcom/iris/Kconfig b/drivers/media/platform/qcom/iris/Kconfig index 34a2f81c5db3..8debddec87a5 100644 --- a/drivers/media/platform/qcom/iris/Kconfig +++ b/drivers/media/platform/qcom/iris/Kconfig @@ -2,6 +2,7 @@ config VIDEO_QCOM_IRIS tristate "Qualcomm iris V4L2 decoder driver" depends on VIDEO_DEV depends on ARCH_QCOM || COMPILE_TEST + select V4L2_MEM2MEM_DEV help This is a V4L2 driver for Qualcomm iris video accelerator hardware. It accelerates decoding operations on various diff --git a/drivers/media/platform/qcom/iris/Makefile b/drivers/media/platform/qcom/iris/Makefile index 7e701361492e..6de584090a3a 100644 --- a/drivers/media/platform/qcom/iris/Makefile +++ b/drivers/media/platform/qcom/iris/Makefile @@ -1,4 +1,7 @@ -iris-objs += iris_platform_sm8550.o \ +iris-objs += iris_hfi_gen1_command.o \ + iris_hfi_gen2_command.o \ + iris_platform_sm8550.o \ iris_probe.o \ + iris_vidc.o \ obj-$(CONFIG_VIDEO_QCOM_IRIS) += iris.o diff --git a/drivers/media/platform/qcom/iris/iris_core.h b/drivers/media/platform/qcom/iris/iris_core.h index dd0e2650641a..73c835bb6589 100644 --- a/drivers/media/platform/qcom/iris/iris_core.h +++ b/drivers/media/platform/qcom/iris/iris_core.h @@ -25,6 +25,7 @@ struct icc_info { * @irq: iris irq * @v4l2_dev: a holder for v4l2 device structure * @vdev_dec: iris video device structure for decoder + * @iris_v4l2_file_ops: iris v4l2 file ops * @icc_tbl: table of iris interconnects * @icc_count: count of iris interconnects * @pmdomain_tbl: table of iris power domains @@ -41,6 +42,7 @@ struct iris_core { int irq; struct v4l2_device v4l2_dev; struct video_device *vdev_dec; + const struct v4l2_file_operations *iris_v4l2_file_ops; struct icc_bulk_data *icc_tbl; u32 icc_count; struct dev_pm_domain_list *pmdomain_tbl; diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen1.h b/drivers/media/platform/qcom/iris/iris_hfi_gen1.h new file mode 100644 index 000000000000..b02f629a9cdc --- /dev/null +++ b/drivers/media/platform/qcom/iris/iris_hfi_gen1.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef _IRIS_HFI_GEN1_H_ +#define _IRIS_HFI_GEN1_H_ + +struct iris_inst; + +struct iris_inst *iris_hfi_gen1_get_instance(void); + +#endif diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen1_command.c b/drivers/media/platform/qcom/iris/iris_hfi_gen1_command.c new file mode 100644 index 000000000000..20c68f4ffb72 --- /dev/null +++ b/drivers/media/platform/qcom/iris/iris_hfi_gen1_command.c @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include "iris_hfi_gen1.h" +#include "iris_instance.h" + +struct iris_inst *iris_hfi_gen1_get_instance(void) +{ + return kzalloc(sizeof(struct iris_inst), GFP_KERNEL); +} diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2.h b/drivers/media/platform/qcom/iris/iris_hfi_gen2.h new file mode 100644 index 000000000000..4f9748cbe0e3 --- /dev/null +++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef _IRIS_HFI_GEN2_H_ +#define _IRIS_HFI_GEN2_H_ + +#include "iris_instance.h" + +/** + * struct iris_inst_hfi_gen2 - holds per video instance parameters for hfi_gen2 + * + * @inst: pointer to iris_instance structure + */ +struct iris_inst_hfi_gen2 { + struct iris_inst inst; +}; + +struct iris_inst *iris_hfi_gen2_get_instance(void); + +#endif diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c b/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c new file mode 100644 index 000000000000..3ee33c8befae --- /dev/null +++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include "iris_hfi_gen2.h" + +struct iris_inst *iris_hfi_gen2_get_instance(void) +{ + return kzalloc(sizeof(struct iris_inst_hfi_gen2), GFP_KERNEL); +} diff --git a/drivers/media/platform/qcom/iris/iris_instance.h b/drivers/media/platform/qcom/iris/iris_instance.h new file mode 100644 index 000000000000..63cb9d70166f --- /dev/null +++ b/drivers/media/platform/qcom/iris/iris_instance.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef _IRIS_INSTANCE_H_ +#define _IRIS_INSTANCE_H_ + +#include "iris_core.h" + +/** + * struct iris_inst - holds per video instance parameters + * + * @core: pointer to core structure + * @ctx_q_lock: lock to serialize queues related ioctls + * @lock: lock to seralise forward and reverse threads + * @fh: reference of v4l2 file handler + * @m2m_dev: a reference to m2m device structure + * @m2m_ctx: a reference to m2m context structure + */ + +struct iris_inst { + struct iris_core *core; + struct mutex ctx_q_lock;/* lock to serialize queues related ioctls */ + struct mutex lock; /* lock to serialize forward and reverse threads */ + struct v4l2_fh fh; + struct v4l2_m2m_dev *m2m_dev; + struct v4l2_m2m_ctx *m2m_ctx; +}; + +#endif diff --git a/drivers/media/platform/qcom/iris/iris_platform_common.h b/drivers/media/platform/qcom/iris/iris_platform_common.h index 68fd2d874231..b3a2903698ff 100644 --- a/drivers/media/platform/qcom/iris/iris_platform_common.h +++ b/drivers/media/platform/qcom/iris/iris_platform_common.h @@ -20,6 +20,7 @@ struct platform_clk_data { }; struct iris_platform_data { + struct iris_inst *(*get_instance)(void); const struct icc_info *icc_tbl; unsigned int icc_tbl_size; const char * const *pmdomain_tbl; diff --git a/drivers/media/platform/qcom/iris/iris_platform_sm8550.c b/drivers/media/platform/qcom/iris/iris_platform_sm8550.c index 3dd91523d783..dba8d3c22ce5 100644 --- a/drivers/media/platform/qcom/iris/iris_platform_sm8550.c +++ b/drivers/media/platform/qcom/iris/iris_platform_sm8550.c @@ -4,6 +4,7 @@ */ #include "iris_core.h" +#include "iris_hfi_gen2.h" #include "iris_platform_common.h" static const struct icc_info sm8550_icc_table[] = { @@ -24,6 +25,7 @@ static const struct platform_clk_data sm8550_clk_table[] = { }; struct iris_platform_data sm8550_data = { + .get_instance = iris_hfi_gen2_get_instance, .icc_tbl = sm8550_icc_table, .icc_tbl_size = ARRAY_SIZE(sm8550_icc_table), .clk_rst_tbl = sm8550_clk_reset_table, diff --git a/drivers/media/platform/qcom/iris/iris_probe.c b/drivers/media/platform/qcom/iris/iris_probe.c index 207ac4bd37ce..99113522ee0c 100644 --- a/drivers/media/platform/qcom/iris/iris_probe.c +++ b/drivers/media/platform/qcom/iris/iris_probe.c @@ -11,6 +11,7 @@ #include #include "iris_core.h" +#include "iris_vidc.h" static int iris_init_icc(struct iris_core *core) { @@ -139,6 +140,7 @@ static int iris_register_video_device(struct iris_core *core) strscpy(vdev->name, "qcom-iris-decoder", sizeof(vdev->name)); vdev->release = video_device_release; + vdev->fops = core->iris_v4l2_file_ops; vdev->vfl_dir = VFL_DIR_M2M; vdev->v4l2_dev = &core->v4l2_dev; vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING; @@ -192,6 +194,7 @@ static int iris_probe(struct platform_device *pdev) core->iris_platform_data = of_device_get_match_data(core->dev); + iris_init_ops(core); ret = iris_init_resources(core); if (ret) return ret; diff --git a/drivers/media/platform/qcom/iris/iris_vidc.c b/drivers/media/platform/qcom/iris/iris_vidc.c new file mode 100644 index 000000000000..e91d661c6280 --- /dev/null +++ b/drivers/media/platform/qcom/iris/iris_vidc.c @@ -0,0 +1,147 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include +#include + +#include "iris_vidc.h" +#include "iris_instance.h" +#include "iris_platform_common.h" + +#define IRIS_DRV_NAME "iris_driver" +#define IRIS_BUS_NAME "platform:iris_icc" +#define STEP_WIDTH 1 +#define STEP_HEIGHT 1 + +static void iris_v4l2_fh_init(struct iris_inst *inst) +{ + v4l2_fh_init(&inst->fh, inst->core->vdev_dec); + v4l2_fh_add(&inst->fh); +} + +static void iris_v4l2_fh_deinit(struct iris_inst *inst) +{ + v4l2_fh_del(&inst->fh); + v4l2_fh_exit(&inst->fh); +} + +static inline struct iris_inst *iris_get_inst(struct file *filp, void *fh) +{ + return container_of(filp->private_data, struct iris_inst, fh); +} + +static void iris_m2m_device_run(void *priv) +{ +} + +static void iris_m2m_job_abort(void *priv) +{ + struct iris_inst *inst = priv; + struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx; + + v4l2_m2m_job_finish(inst->m2m_dev, m2m_ctx); +} + +static const struct v4l2_m2m_ops iris_m2m_ops = { + .device_run = iris_m2m_device_run, + .job_abort = iris_m2m_job_abort, +}; + +static int +iris_m2m_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) +{ + struct iris_inst *inst = priv; + int ret; + + src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; + src_vq->io_modes = VB2_MMAP | VB2_DMABUF; + src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; + src_vq->drv_priv = inst; + src_vq->dev = inst->core->dev; + src_vq->lock = &inst->ctx_q_lock; + ret = vb2_queue_init(src_vq); + if (ret) + return ret; + + dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; + dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; + dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; + dst_vq->drv_priv = inst; + dst_vq->dev = inst->core->dev; + dst_vq->lock = &inst->ctx_q_lock; + + return vb2_queue_init(dst_vq); +} + +int iris_open(struct file *filp) +{ + struct iris_core *core = video_drvdata(filp); + struct iris_inst *inst; + int ret; + + inst = core->iris_platform_data->get_instance(); + if (!inst) + return -ENOMEM; + + inst->core = core; + + mutex_init(&inst->ctx_q_lock); + + iris_v4l2_fh_init(inst); + + inst->m2m_dev = v4l2_m2m_init(&iris_m2m_ops); + if (IS_ERR_OR_NULL(inst->m2m_dev)) { + ret = -EINVAL; + goto fail_v4l2_fh_deinit; + } + + inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, iris_m2m_queue_init); + if (IS_ERR_OR_NULL(inst->m2m_ctx)) { + ret = -EINVAL; + goto fail_m2m_release; + } + + inst->fh.m2m_ctx = inst->m2m_ctx; + filp->private_data = &inst->fh; + + return 0; + +fail_m2m_release: + v4l2_m2m_release(inst->m2m_dev); +fail_v4l2_fh_deinit: + iris_v4l2_fh_deinit(inst); + mutex_destroy(&inst->ctx_q_lock); + kfree(inst); + + return ret; +} + +int iris_close(struct file *filp) +{ + struct iris_inst *inst = iris_get_inst(filp, NULL); + + v4l2_m2m_ctx_release(inst->m2m_ctx); + v4l2_m2m_release(inst->m2m_dev); + iris_v4l2_fh_deinit(inst); + mutex_destroy(&inst->ctx_q_lock); + kfree(inst); + filp->private_data = NULL; + + return 0; +} + +static struct v4l2_file_operations iris_v4l2_file_ops = { + .owner = THIS_MODULE, + .open = iris_open, + .release = iris_close, + .unlocked_ioctl = video_ioctl2, + .poll = v4l2_m2m_fop_poll, + .mmap = v4l2_m2m_fop_mmap, +}; + +void iris_init_ops(struct iris_core *core) +{ + core->iris_v4l2_file_ops = &iris_v4l2_file_ops; +} diff --git a/drivers/media/platform/qcom/iris/iris_vidc.h b/drivers/media/platform/qcom/iris/iris_vidc.h new file mode 100644 index 000000000000..f09862e6199c --- /dev/null +++ b/drivers/media/platform/qcom/iris/iris_vidc.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef _IRIS_VIDC_H_ +#define _IRIS_VIDC_H_ + +struct iris_core; + +void iris_init_ops(struct iris_core *core); +int iris_open(struct file *filp); +int iris_close(struct file *filp); + +#endif