From patchwork Mon Dec 18 11:32:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dikshita Agarwal X-Patchwork-Id: 13496718 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 C21AA1C698; Mon, 18 Dec 2023 11:40:09 +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="TGLaTVKb" Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 3BIArvvC003521; 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=qhSUy+6TOTvWGOHRrcWbcV5KaOQ6iVEmTghe6XRp+Lg=; b=TG LaTVKb/KVPbaFMXKQ6a+OKqzri/hylahTK5DtWB5wMNVO60nN9C4IwxKM3eA3Zun 9ki6bCuCcvsd+kuhbjN3aOe8d6EngcJQDnnR0QHecys6h6uWF0QHyHupPUj28M4a b3aEXt+kd3GLpBO5XCWMWCAOHu2Fe7Adb3BReTfQYIvmTrUgKTcAsI/eNRFSDupG oCAgeuk2thV8REtKHBKzPIibAeTTLqNrwmtxC47Wuj79UDC23RVseYUyX23HpYqr QgliLZcYSk6vuW1AVjztrTodgoTcjntwibV8dmlp6ziG3wKPuN+XBoHom5cat916 H7nUlExdye6CW+43sdfw== 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 3v2mb9g4xy-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 3BIBe0ww004854; 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-2; 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 3BIBX7pR030023; 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 3BIBX6B7029967; Mon, 18 Dec 2023 11:33:08 +0000 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 347544) id 55BF1232E; 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 22/34] media: iris: introduce instance states Date: Mon, 18 Dec 2023 17:02:17 +0530 Message-Id: <1702899149-21321-23-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: X7JjZwzpVHK3NnlkLrxR0-h3_3ESkyBr X-Proofpoint-GUID: X7JjZwzpVHK3NnlkLrxR0-h3_3ESkyBr 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 priorityscore=1501 malwarescore=0 impostorscore=0 adultscore=0 mlxscore=0 clxscore=1015 spamscore=0 mlxlogscore=944 phishscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=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: Introduce different states for instances. State transitions are defined, based on which they would be allowed/rejected/ignored. IRIS_INST_OPEN - video instance is opened. IRIS_INST_INPUT_STREAMING - stream on is completed on output plane. IRIS_INST_OUTPUT_STREAMING - stream on is completed on capture plane. IRIS_INST_STREAMING - stream on is completed on both output and capture planes. IRIS_INST_CLOSE - video instance is closed. IRIS_INST_ERROR - error state. | v ------------- +---------| OPEN |--------- + | ------------- | | ^ ^ | | / \ | | / \ | | v v | | ----------- ----------- | | | INPUT OUTPUT | | |---| STREAMING STREAMING |---| | ----------- ----------- | | ^ ^ | | \ / | | \ / | | v v | | ------------- | |--------| STREAMING |-----------| | ------------- | | | | | | | | v | | ----------- | +-------->| CLOSE |<----------+ | ----------- | | | | | | | | v | | ---------- | +-------->| ERROR |<-----------+ ---------- Signed-off-by: Dikshita Agarwal --- .../platform/qcom/vcodec/iris/iris_instance.h | 2 + .../media/platform/qcom/vcodec/iris/iris_state.c | 86 ++++++++++++++++++++++ .../media/platform/qcom/vcodec/iris/iris_state.h | 22 ++++++ drivers/media/platform/qcom/vcodec/iris/iris_vb2.c | 3 + .../media/platform/qcom/vcodec/iris/iris_vidc.c | 5 ++ 5 files changed, 118 insertions(+) diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_instance.h b/drivers/media/platform/qcom/vcodec/iris/iris_instance.h index 5d4c856..275efa8 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_instance.h +++ b/drivers/media/platform/qcom/vcodec/iris/iris_instance.h @@ -37,6 +37,7 @@ * @codec: codec type * @buffers: structure of buffer info * @fw_min_count: minimnum count of buffers needed by fw + * @state: instance state */ struct iris_inst { @@ -60,6 +61,7 @@ struct iris_inst { enum codec_type codec; struct iris_buffers_info buffers; u32 fw_min_count; + enum iris_inst_state state; }; #endif diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_state.c b/drivers/media/platform/qcom/vcodec/iris/iris_state.c index 83bbc6b..9bf79a0 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_state.c +++ b/drivers/media/platform/qcom/vcodec/iris/iris_state.c @@ -69,3 +69,89 @@ int iris_change_core_state(struct iris_core *core, return ret; } + +struct iris_inst_state_change_allow { + enum iris_inst_state from; + enum iris_inst_state to; + enum state_change allow; +}; + +static enum state_change iris_allow_inst_state_change(struct iris_inst *inst, + enum iris_inst_state req_state) +{ + enum state_change allow = STATE_CHANGE_ALLOW; + int cnt; + static struct iris_inst_state_change_allow state[] = { + /* from, to, allow */ + {IRIS_INST_OPEN, IRIS_INST_OPEN, STATE_CHANGE_IGNORE }, + {IRIS_INST_OPEN, IRIS_INST_INPUT_STREAMING, STATE_CHANGE_ALLOW }, + {IRIS_INST_OPEN, IRIS_INST_OUTPUT_STREAMING, STATE_CHANGE_ALLOW }, + {IRIS_INST_OPEN, IRIS_INST_STREAMING, STATE_CHANGE_DISALLOW }, + {IRIS_INST_OPEN, IRIS_INST_CLOSE, STATE_CHANGE_ALLOW }, + {IRIS_INST_OPEN, IRIS_INST_ERROR, STATE_CHANGE_ALLOW }, + + {IRIS_INST_INPUT_STREAMING, IRIS_INST_OPEN, STATE_CHANGE_ALLOW }, + {IRIS_INST_INPUT_STREAMING, IRIS_INST_INPUT_STREAMING, STATE_CHANGE_IGNORE }, + {IRIS_INST_INPUT_STREAMING, IRIS_INST_OUTPUT_STREAMING, STATE_CHANGE_DISALLOW }, + {IRIS_INST_INPUT_STREAMING, IRIS_INST_STREAMING, STATE_CHANGE_ALLOW }, + {IRIS_INST_INPUT_STREAMING, IRIS_INST_CLOSE, STATE_CHANGE_ALLOW }, + {IRIS_INST_INPUT_STREAMING, IRIS_INST_ERROR, STATE_CHANGE_ALLOW }, + + {IRIS_INST_OUTPUT_STREAMING, IRIS_INST_OPEN, STATE_CHANGE_ALLOW }, + {IRIS_INST_OUTPUT_STREAMING, IRIS_INST_INPUT_STREAMING, STATE_CHANGE_DISALLOW }, + {IRIS_INST_OUTPUT_STREAMING, IRIS_INST_OUTPUT_STREAMING, STATE_CHANGE_IGNORE }, + {IRIS_INST_OUTPUT_STREAMING, IRIS_INST_STREAMING, STATE_CHANGE_ALLOW }, + {IRIS_INST_OUTPUT_STREAMING, IRIS_INST_CLOSE, STATE_CHANGE_ALLOW }, + {IRIS_INST_OUTPUT_STREAMING, IRIS_INST_ERROR, STATE_CHANGE_ALLOW }, + + {IRIS_INST_STREAMING, IRIS_INST_OPEN, STATE_CHANGE_DISALLOW }, + {IRIS_INST_STREAMING, IRIS_INST_INPUT_STREAMING, STATE_CHANGE_ALLOW }, + {IRIS_INST_STREAMING, IRIS_INST_OUTPUT_STREAMING, STATE_CHANGE_ALLOW }, + {IRIS_INST_STREAMING, IRIS_INST_STREAMING, STATE_CHANGE_IGNORE }, + {IRIS_INST_STREAMING, IRIS_INST_CLOSE, STATE_CHANGE_ALLOW }, + {IRIS_INST_STREAMING, IRIS_INST_ERROR, STATE_CHANGE_ALLOW }, + + {IRIS_INST_CLOSE, IRIS_INST_OPEN, STATE_CHANGE_DISALLOW }, + {IRIS_INST_CLOSE, IRIS_INST_INPUT_STREAMING, STATE_CHANGE_DISALLOW }, + {IRIS_INST_CLOSE, IRIS_INST_OUTPUT_STREAMING, STATE_CHANGE_DISALLOW }, + {IRIS_INST_CLOSE, IRIS_INST_STREAMING, STATE_CHANGE_DISALLOW }, + {IRIS_INST_CLOSE, IRIS_INST_CLOSE, STATE_CHANGE_IGNORE }, + {IRIS_INST_CLOSE, IRIS_INST_ERROR, STATE_CHANGE_IGNORE }, + + {IRIS_INST_ERROR, IRIS_INST_OPEN, STATE_CHANGE_IGNORE }, + {IRIS_INST_ERROR, IRIS_INST_INPUT_STREAMING, STATE_CHANGE_IGNORE }, + {IRIS_INST_ERROR, IRIS_INST_OUTPUT_STREAMING, STATE_CHANGE_IGNORE }, + {IRIS_INST_ERROR, IRIS_INST_STREAMING, STATE_CHANGE_IGNORE }, + {IRIS_INST_ERROR, IRIS_INST_CLOSE, STATE_CHANGE_IGNORE }, + {IRIS_INST_ERROR, IRIS_INST_ERROR, STATE_CHANGE_IGNORE }, + }; + + for (cnt = 0; cnt < ARRAY_SIZE(state); cnt++) { + if (state[cnt].from == inst->state && state[cnt].to == req_state) { + allow = state[cnt].allow; + break; + } + } + + return allow; +} + +int iris_inst_change_state(struct iris_inst *inst, + enum iris_inst_state request_state) +{ + enum state_change allow; + + if (IS_SESSION_ERROR(inst)) + return 0; + + if (inst->state == request_state) + return 0; + + allow = iris_allow_inst_state_change(inst, request_state); + if (allow != STATE_CHANGE_ALLOW) + return (allow == STATE_CHANGE_DISALLOW ? -EINVAL : 0); + + inst->state = request_state; + + return 0; +} diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_state.h b/drivers/media/platform/qcom/vcodec/iris/iris_state.h index ee20842..6db95a1 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_state.h +++ b/drivers/media/platform/qcom/vcodec/iris/iris_state.h @@ -7,6 +7,7 @@ #define _IRIS_STATE_H_ struct iris_core; +struct iris_inst; enum iris_core_state { IRIS_CORE_DEINIT, @@ -15,8 +16,29 @@ enum iris_core_state { IRIS_CORE_ERROR, }; +enum iris_inst_state { + IRIS_INST_OPEN, + IRIS_INST_INPUT_STREAMING, + IRIS_INST_OUTPUT_STREAMING, + IRIS_INST_STREAMING, + IRIS_INST_CLOSE, + IRIS_INST_ERROR, +}; + +enum state_change { + STATE_CHANGE_ALLOW, + STATE_CHANGE_DISALLOW, + STATE_CHANGE_IGNORE, +}; + +#define IS_SESSION_ERROR(inst) \ +((inst)->state == IRIS_INST_ERROR) + bool core_in_valid_state(struct iris_core *core); int iris_change_core_state(struct iris_core *core, enum iris_core_state request_state); +int iris_inst_change_state(struct iris_inst *inst, + enum iris_inst_state request_state); + #endif diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_vb2.c b/drivers/media/platform/qcom/vcodec/iris/iris_vb2.c index a57b5fb..8f499a9 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_vb2.c +++ b/drivers/media/platform/qcom/vcodec/iris/iris_vb2.c @@ -34,6 +34,9 @@ int iris_vb2_queue_setup(struct vb2_queue *q, else f = inst->fmt_dst; + if (inst->state == IRIS_INST_STREAMING) + return -EINVAL; + if (*num_planes) { if (*num_planes != f->fmt.pix_mp.num_planes || sizes[0] < f->fmt.pix_mp.plane_fmt[0].sizeimage) diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_vidc.c b/drivers/media/platform/qcom/vcodec/iris/iris_vidc.c index 124333a..68ba75f 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_vidc.c +++ b/drivers/media/platform/qcom/vcodec/iris/iris_vidc.c @@ -168,6 +168,7 @@ int vidc_open(struct file *filp) inst->core = core; inst->session_id = hash32_ptr(inst); + iris_inst_change_state(inst, IRIS_INST_OPEN); mutex_init(&inst->ctx_q_lock); ret = vidc_add_session(inst); @@ -244,6 +245,7 @@ int vidc_close(struct file *filp) v4l2_ctrl_handler_free(&inst->ctrl_handler); vdec_inst_deinit(inst); close_session(inst); + iris_inst_change_state(inst, IRIS_INST_CLOSE); vidc_vb2_queue_deinit(inst); vidc_v4l2_fh_deinit(inst); vidc_remove_session(inst); @@ -295,6 +297,9 @@ static __poll_t vidc_poll(struct file *filp, struct poll_table_struct *pt) if (!inst) return EPOLLERR; + if (IS_SESSION_ERROR(inst)) + return EPOLLERR; + poll_wait(filp, &inst->fh.wait, pt); poll_wait(filp, &inst->vb2q_src->done_wq, pt); poll_wait(filp, &inst->vb2q_dst->done_wq, pt);