From patchwork Mon Dec 18 11:32:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dikshita Agarwal X-Patchwork-Id: 13496720 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DDB14200C7; Mon, 18 Dec 2023 11:40:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="Iow/hLS0" Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 3BIBDuCL018171; Mon, 18 Dec 2023 11:40:04 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references; s= qcppdkim1; bh=U89F2RsbUBam7okcX4qquI23KYt3c/bBrBXYoIhu7nc=; b=Io w/hLS0iYU+2wA536pvvoU0BPIdStACjIV8AU/h+87eQsegFLHRhM6Hxqxh8Lmk3B SSFddYPVaBBwJ0cxjOS84ggBpae47gPxsAQ2qQWADmiKqyDuUAje1ccXKEz1f6Gn uifQHzkc7MRQJAhUKCWtcTB00nJ6dYqB1XVE7evRhqKmkD0RLFLX86S6PkAQltAO M5TFvN1uezVsptxx+7JZem5mEJjSLJVboayoPe9qTT+seWeTBEbrPxd35dND7KPF D0eYtfrnDmEQNvERMLgnQdxpSN4z1yuKdgUR90vkfHQyuHSQnHnJXjlX+6MDa2KM AaFvGrcc/izLM855ieWQ== Received: from apblrppmta01.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3v2n1781tu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 18 Dec 2023 11:40:03 +0000 (GMT) Received: from pps.filterd (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 3BIBe0wx004854; Mon, 18 Dec 2023 11:40:00 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 3v14ym00ag-3; Mon, 18 Dec 2023 11:40:00 +0000 Received: from APBLRPPMTA01.qualcomm.com (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3BIBX8Ya030075; Mon, 18 Dec 2023 11:33:08 GMT Received: from hu-sgudaval-hyd.qualcomm.com (hu-dikshita-hyd.qualcomm.com [10.213.110.13]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 3BIBX8hq030062; Mon, 18 Dec 2023 11:33:08 +0000 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 347544) id 4C494230A; Mon, 18 Dec 2023 17:03:04 +0530 (+0530) From: Dikshita Agarwal To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, stanimir.k.varbanov@gmail.com, quic_vgarodia@quicinc.com, agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, mchehab@kernel.org, bryan.odonoghue@linaro.org Cc: linux-arm-msm@vger.kernel.org, quic_abhinavk@quicinc.com, Dikshita Agarwal Subject: [PATCH v2 18/34] media: iris: introduce and implement iris vb2 mem ops Date: Mon, 18 Dec 2023 17:02:13 +0530 Message-Id: <1702899149-21321-19-git-send-email-quic_dikshita@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1702899149-21321-1-git-send-email-quic_dikshita@quicinc.com> References: <1702899149-21321-1-git-send-email-quic_dikshita@quicinc.com> X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: X0VFrL2CzS5cfywwCIMg4PGknbvtbMVt X-Proofpoint-GUID: X0VFrL2CzS5cfywwCIMg4PGknbvtbMVt X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_01,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=985 mlxscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 adultscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 malwarescore=0 phishscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2312180084 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: From: Vikash Garodia Implement the iris vb2 mem ops for buffer management for DMABUF streaming mode. Update video driver buffer with dma buf information. Signed-off-by: Vikash Garodia Signed-off-by: Dikshita Agarwal --- .../media/platform/qcom/vcodec/iris/iris_probe.c | 1 + drivers/media/platform/qcom/vcodec/iris/iris_vb2.c | 147 +++++++++++++++++++++ drivers/media/platform/qcom/vcodec/iris/iris_vb2.h | 10 ++ .../media/platform/qcom/vcodec/iris/iris_vidc.c | 11 ++ 4 files changed, 169 insertions(+) diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_probe.c b/drivers/media/platform/qcom/vcodec/iris/iris_probe.c index 50fb93e..bf484a3 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_probe.c +++ b/drivers/media/platform/qcom/vcodec/iris/iris_probe.c @@ -233,5 +233,6 @@ static struct platform_driver qcom_iris_driver = { }; module_platform_driver(qcom_iris_driver); +MODULE_IMPORT_NS(DMA_BUF); MODULE_DESCRIPTION("Qualcomm Iris video driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_vb2.c b/drivers/media/platform/qcom/vcodec/iris/iris_vb2.c index b040d27..a57b5fb 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_vb2.c +++ b/drivers/media/platform/qcom/vcodec/iris/iris_vb2.c @@ -69,3 +69,150 @@ int iris_vb2_queue_setup(struct vb2_queue *q, return ret; } + +void *iris_vb2_attach_dmabuf(struct vb2_buffer *vb, struct device *dev, + struct dma_buf *dbuf, unsigned long size) +{ + enum iris_buffer_type buf_type; + struct iris_buffers *buffers; + struct iris_buffer *iter; + struct iris_buffer *buf; + struct iris_inst *inst; + bool found = false; + + if (!vb || !dev || !dbuf || !vb->vb2_queue) + return ERR_PTR(-EINVAL); + + inst = vb->vb2_queue->drv_priv; + + buf_type = v4l2_type_to_driver(vb->type); + + buffers = iris_get_buffer_list(inst, buf_type); + if (!buffers) + return NULL; + + list_for_each_entry(iter, &buffers->list, list) { + if (iter->index == vb->index) { + found = true; + buf = iter; + break; + } + } + + if (!found) + return NULL; + + buf->inst = inst; + buf->dmabuf = dbuf; + + buf->attach = dma_buf_attach(dbuf, dev); + if (IS_ERR(buf->attach)) { + buf->attach = NULL; + return NULL; + } + + return buf; +} + +int iris_vb2_map_dmabuf(void *buf_priv) +{ + struct iris_buffer *buf = buf_priv; + struct iris_core *core; + struct iris_inst *inst; + + if (!buf || !buf->inst) + return -EINVAL; + + inst = buf->inst; + core = inst->core; + + if (!buf->attach) { + dev_err(core->dev, "trying to map a non attached buffer\n"); + return -EINVAL; + } + + buf->sg_table = dma_buf_map_attachment(buf->attach, DMA_BIDIRECTIONAL); + if (IS_ERR(buf->sg_table)) + return -EINVAL; + + if (!buf->sg_table->sgl) { + dma_buf_unmap_attachment(buf->attach, buf->sg_table, DMA_BIDIRECTIONAL); + buf->sg_table = NULL; + return -EINVAL; + } + + buf->device_addr = sg_dma_address(buf->sg_table->sgl); + + return 0; +} + +void iris_vb2_unmap_dmabuf(void *buf_priv) +{ + struct iris_buffer *buf = buf_priv; + struct iris_core *core; + struct iris_inst *inst; + + if (!buf || !buf->inst) + return; + + inst = buf->inst; + core = inst->core; + + if (!buf->attach) { + dev_err(core->dev, "trying to unmap a non attached buffer\n"); + return; + } + + if (!buf->sg_table) { + dev_err(core->dev, "dmabuf buffer is already unmapped\n"); + return; + } + + if (buf->attach && buf->sg_table) { + dma_buf_unmap_attachment(buf->attach, buf->sg_table, DMA_BIDIRECTIONAL); + buf->sg_table = NULL; + buf->device_addr = 0x0; + } +} + +void iris_vb2_detach_dmabuf(void *buf_priv) +{ + struct iris_buffer *buf = buf_priv; + struct iris_core *core; + struct iris_inst *inst; + + if (!buf || !buf->inst) + return; + + inst = buf->inst; + core = inst->core; + + if (buf->sg_table) { + dev_err(core->dev, "trying to detach an unmapped buffer\n"); + dma_buf_unmap_attachment(buf->attach, buf->sg_table, DMA_BIDIRECTIONAL); + buf->sg_table = NULL; + } + + if (buf->attach && buf->dmabuf) { + dma_buf_detach(buf->dmabuf, buf->attach); + buf->attach = NULL; + } + + buf->dmabuf = NULL; + buf->inst = NULL; +} + +void *iris_vb2_alloc(struct vb2_buffer *vb, struct device *dev, + unsigned long size) +{ + return (void *)0xdeadbeef; +} + +void iris_vb2_put(void *buf_priv) +{ +} + +int iris_vb2_mmap(void *buf_priv, struct vm_area_struct *vma) +{ + return 0; +} diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_vb2.h b/drivers/media/platform/qcom/vcodec/iris/iris_vb2.h index 8a8e1039..4342034 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_vb2.h +++ b/drivers/media/platform/qcom/vcodec/iris/iris_vb2.h @@ -12,4 +12,14 @@ int iris_vb2_queue_setup(struct vb2_queue *q, unsigned int *num_buffers, unsigned int *num_planes, unsigned int sizes[], struct device *alloc_devs[]); +/* vb2_mem_ops */ +void *iris_vb2_alloc(struct vb2_buffer *vb, struct device *dev, unsigned long size); +void *iris_vb2_attach_dmabuf(struct vb2_buffer *vb, struct device *dev, struct dma_buf *dbuf, + unsigned long size); +void iris_vb2_put(void *buf_priv); +int iris_vb2_mmap(void *buf_priv, struct vm_area_struct *vma); +void iris_vb2_detach_dmabuf(void *buf_priv); +int iris_vb2_map_dmabuf(void *buf_priv); +void iris_vb2_unmap_dmabuf(void *buf_priv); + #endif diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_vidc.c b/drivers/media/platform/qcom/vcodec/iris/iris_vidc.c index 410de720..124333a 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_vidc.c +++ b/drivers/media/platform/qcom/vcodec/iris/iris_vidc.c @@ -320,10 +320,21 @@ static const struct vb2_ops iris_vb2_ops = { .queue_setup = iris_vb2_queue_setup, }; +static struct vb2_mem_ops iris_vb2_mem_ops = { + .alloc = iris_vb2_alloc, + .put = iris_vb2_put, + .mmap = iris_vb2_mmap, + .attach_dmabuf = iris_vb2_attach_dmabuf, + .detach_dmabuf = iris_vb2_detach_dmabuf, + .map_dmabuf = iris_vb2_map_dmabuf, + .unmap_dmabuf = iris_vb2_unmap_dmabuf, +}; + int init_ops(struct iris_core *core) { core->v4l2_file_ops = &v4l2_file_ops; core->vb2_ops = &iris_vb2_ops; + core->vb2_mem_ops = &iris_vb2_mem_ops; return 0; }