From: Dikshita Agarwal <quic_dikshita@quicinc.com>
To: Hans Verkuil <hverkuil@xs4all.nl>,
Vikash Garodia <quic_vgarodia@quicinc.com>,
Abhinav Kumar <quic_abhinavk@quicinc.com>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Philipp Zabel <p.zabel@pengutronix.de>
Cc: Sebastian Fricke <sebastian.fricke@collabora.com>,
<linux-arm-msm@vger.kernel.org>, <linux-media@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v4 16/28] media: iris: implement vb2 streaming ops
Date: Fri, 25 Oct 2024 12:36:13 +0530 [thread overview]
Message-ID: <5352bc86-61d2-cf69-f608-6f6de3cfe8f5@quicinc.com> (raw)
In-Reply-To: <59047df4-1e5f-488f-a134-f8bad7cf655c@xs4all.nl>
On 10/23/2024 4:43 PM, Hans Verkuil wrote:
> On 14/10/2024 11:07, Dikshita Agarwal wrote:
>> In stream on, send HFI_CMD_START on capture and
>> output planes to start the processing on respective planes.
>>
>> During stream off, send HFI_CMD_STOP to firmware which is
>> a synchronous command. After the response is received from
>> firmware, the session is closed on firmware.
>>
>> Introduce different states for instance and state transitions.
>>
>> IRIS_INST_INIT - 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_DEINIT - video instance is closed.
>> IRIS_INST_ERROR - error state.
>>
>> |
>> v
>> -------------
>> +---------| INIT |--------- +
>> | ------------- |
>> | ^ ^ |
>> | / \ |
>> | / \ |
>> | v v |
>> | ----------- ----------- |
>> | | INPUT OUTPUT | |
>> |---| STREAMING STREAMING |---|
>> | ----------- ----------- |
>> | ^ ^ |
>> | \ / |
>> | \ / |
>> | v v |
>> | ------------- |
>> |--------| STREAMING |-----------|
>> | ------------- |
>> | | |
>> | | |
>> | v |
>> | ----------- |
>> +-------->| DEINIT |<----------+
>> | ----------- |
>> | | |
>> | | |
>> | v |
>> | ---------- |
>> +-------->| ERROR |<-----------+
>> ----------.
>>
>> Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
>> ---
>> drivers/media/platform/qcom/iris/Makefile | 1 +
>> drivers/media/platform/qcom/iris/iris_hfi_common.h | 2 +
>> .../platform/qcom/iris/iris_hfi_gen1_command.c | 82 +++++++++++++++-
>> .../platform/qcom/iris/iris_hfi_gen1_defines.h | 24 +++++
>> .../platform/qcom/iris/iris_hfi_gen1_response.c | 39 +++++++-
>> .../platform/qcom/iris/iris_hfi_gen2_command.c | 61 ++++++++++++
>> .../platform/qcom/iris/iris_hfi_gen2_defines.h | 2 +
>> .../platform/qcom/iris/iris_hfi_gen2_response.c | 32 ++++++-
>> drivers/media/platform/qcom/iris/iris_instance.h | 4 +
>> drivers/media/platform/qcom/iris/iris_state.c | 104 +++++++++++++++++++++
>> drivers/media/platform/qcom/iris/iris_state.h | 58 ++++++++++++
>> drivers/media/platform/qcom/iris/iris_utils.c | 11 ++-
>> drivers/media/platform/qcom/iris/iris_utils.h | 2 +-
>> drivers/media/platform/qcom/iris/iris_vb2.c | 70 ++++++++++++++
>> drivers/media/platform/qcom/iris/iris_vb2.h | 3 +
>> drivers/media/platform/qcom/iris/iris_vdec.c | 75 +++++++++++++++
>> drivers/media/platform/qcom/iris/iris_vdec.h | 3 +
>> drivers/media/platform/qcom/iris/iris_vidc.c | 32 ++++++-
>> 18 files changed, 593 insertions(+), 12 deletions(-)
>>
>
> <snip>
>
>> diff --git a/drivers/media/platform/qcom/iris/iris_vb2.c b/drivers/media/platform/qcom/iris/iris_vb2.c
>> index f89891e52fde..75c1364709d1 100644
>> --- a/drivers/media/platform/qcom/iris/iris_vb2.c
>> +++ b/drivers/media/platform/qcom/iris/iris_vb2.c
>> @@ -6,6 +6,7 @@
>> #include "iris_buffer.h"
>> #include "iris_instance.h"
>> #include "iris_vb2.h"
>> +#include "iris_vdec.h"
>> #include "iris_vpu_buffer.h"
>>
>> int iris_vb2_queue_setup(struct vb2_queue *q,
>> @@ -22,6 +23,10 @@ int iris_vb2_queue_setup(struct vb2_queue *q,
>> inst = vb2_get_drv_priv(q);
>>
>> mutex_lock(&inst->lock);
>> + if (inst->state == IRIS_INST_ERROR) {
>> + ret = -EBUSY;
>> + goto unlock;
>> + }
>>
>> core = inst->core;
>> f = V4L2_TYPE_IS_OUTPUT(q->type) ? inst->fmt_src : inst->fmt_dst;
>> @@ -49,6 +54,10 @@ int iris_vb2_queue_setup(struct vb2_queue *q,
>> dev_err(core->dev, "session open failed\n");
>> goto unlock;
>> }
>> +
>> + ret = iris_inst_change_state(inst, IRIS_INST_INIT);
>> + if (ret)
>> + goto unlock;
>> }
>>
>> buffers = &inst->buffers[buffer_type];
>> @@ -75,3 +84,64 @@ int iris_vb2_queue_setup(struct vb2_queue *q,
>>
>> return ret;
>> }
>> +
>> +int iris_vb2_start_streaming(struct vb2_queue *q, unsigned int count)
>> +{
>> + struct iris_inst *inst;
>> + int ret = 0;
>> +
>> + inst = vb2_get_drv_priv(q);
>> +
>> + if (V4L2_TYPE_IS_CAPTURE(q->type) && inst->state == IRIS_INST_INIT)
>> + return 0;
>> +
>> + mutex_lock(&inst->lock);
>> + if (inst->state == IRIS_INST_ERROR) {
>> + ret = -EBUSY;
>
> If an error occurs during start_streaming, then all queued buffers must be
> returned to vb2 in state VB2_BUF_STATE_QUEUED.
>
>> + goto error;
>> + }
>> +
>> + if (!V4L2_TYPE_IS_OUTPUT(q->type) &&
>> + !V4L2_TYPE_IS_CAPTURE(q->type)) {
>> + ret = -EINVAL;
>> + goto error;
>> + }
>> +
>> + if (V4L2_TYPE_IS_OUTPUT(q->type))
>> + ret = iris_vdec_streamon_input(inst);
>> + else if (V4L2_TYPE_IS_CAPTURE(q->type))
>> + ret = iris_vdec_streamon_output(inst);
>> + if (ret)
>> + goto error;
>> +
>> + mutex_unlock(&inst->lock);
>> +
>> + return ret;
>> +
>> +error:
>> + iris_inst_change_state(inst, IRIS_INST_ERROR);
>> + mutex_unlock(&inst->lock);
>> +
>> + return ret;
>> +}
>> +
>> +void iris_vb2_stop_streaming(struct vb2_queue *q)
>> +{
>> + struct iris_inst *inst;
>> +
>> + inst = vb2_get_drv_priv(q);
>> +
>> + if (V4L2_TYPE_IS_CAPTURE(q->type) && inst->state == IRIS_INST_INIT)
>> + return;
>> +
>> + mutex_lock(&inst->lock);
>> +
>> + if (!V4L2_TYPE_IS_OUTPUT(q->type) &&
>> + !V4L2_TYPE_IS_CAPTURE(q->type))
>> + goto exit;
>> +
>> + iris_vdec_session_streamoff(inst, q->type);
>> +
>> +exit:
>
> stop_streaming must return all queued buffers to vb2 in state VB2_BUF_STATE_ERROR.
>
>> + mutex_unlock(&inst->lock);
>> +}
>> diff --git a/drivers/media/platform/qcom/iris/iris_vb2.h b/drivers/media/platform/qcom/iris/iris_vb2.h
>> index 78157a97b86e..bc3bb830c2ba 100644
>> --- a/drivers/media/platform/qcom/iris/iris_vb2.h
>> +++ b/drivers/media/platform/qcom/iris/iris_vb2.h
>> @@ -9,4 +9,7 @@
>> int iris_vb2_queue_setup(struct vb2_queue *q,
>> unsigned int *num_buffers, unsigned int *num_planes,
>> unsigned int sizes[], struct device *alloc_devs[]);
>> +int iris_vb2_start_streaming(struct vb2_queue *q, unsigned int count);
>> +void iris_vb2_stop_streaming(struct vb2_queue *q);
>> +
>> #endif
>> diff --git a/drivers/media/platform/qcom/iris/iris_vdec.c b/drivers/media/platform/qcom/iris/iris_vdec.c
>> index 66a54771b9e8..44372e2811c3 100644
>> --- a/drivers/media/platform/qcom/iris/iris_vdec.c
>> +++ b/drivers/media/platform/qcom/iris/iris_vdec.c
>> @@ -241,3 +241,78 @@ int iris_vdec_subscribe_event(struct iris_inst *inst, const struct v4l2_event_su
>>
>> return ret;
>> }
>> +
>> +static void iris_vdec_kill_session(struct iris_inst *inst)
>> +{
>> + const struct iris_hfi_command_ops *hfi_ops = inst->core->hfi_ops;
>> +
>> + if (!inst->session_id)
>> + return;
>> +
>> + hfi_ops->session_close(inst);
>> + iris_inst_change_state(inst, IRIS_INST_ERROR);
>> +}
>> +
>> +void iris_vdec_session_streamoff(struct iris_inst *inst, u32 plane)
>> +{
>> + const struct iris_hfi_command_ops *hfi_ops = inst->core->hfi_ops;
>> + int ret;
>> +
>> + ret = hfi_ops->session_stop(inst, plane);
>> + if (ret)
>> + goto error;
>> +
>> + ret = iris_inst_state_change_streamoff(inst, plane);
>> + if (ret)
>> + goto error;
>> +
>> + return;
>> +
>> +error:
>> + iris_vdec_kill_session(inst);
>> +}
>> +
>> +static int iris_vdec_process_streamon_input(struct iris_inst *inst)
>> +{
>> + const struct iris_hfi_command_ops *hfi_ops = inst->core->hfi_ops;
>> + int ret;
>> +
>> + ret = hfi_ops->session_start(inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
>> + if (ret)
>> + return ret;
>> +
>> + return iris_inst_state_change_streamon(inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
>> +}
>> +
>> +int iris_vdec_streamon_input(struct iris_inst *inst)
>> +{
>> + return iris_vdec_process_streamon_input(inst);
>> +}
>> +
>> +static int iris_vdec_process_streamon_output(struct iris_inst *inst)
>> +{
>> + const struct iris_hfi_command_ops *hfi_ops = inst->core->hfi_ops;
>> + int ret;
>> +
>> + ret = hfi_ops->session_start(inst, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
>> + if (ret)
>> + return ret;
>> +
>> + return iris_inst_state_change_streamon(inst, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
>> +}
>> +
>> +int iris_vdec_streamon_output(struct iris_inst *inst)
>> +{
>> + int ret;
>> +
>> + ret = iris_vdec_process_streamon_output(inst);
>> + if (ret)
>> + goto error;
>> +
>> + return ret;
>> +
>> +error:
>> + iris_vdec_session_streamoff(inst, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
>> +
>> + return ret;
>> +}
>> diff --git a/drivers/media/platform/qcom/iris/iris_vdec.h b/drivers/media/platform/qcom/iris/iris_vdec.h
>> index d7b8a0ad6fa8..b3299164f823 100644
>> --- a/drivers/media/platform/qcom/iris/iris_vdec.h
>> +++ b/drivers/media/platform/qcom/iris/iris_vdec.h
>> @@ -14,5 +14,8 @@ int iris_vdec_enum_fmt(struct iris_inst *inst, struct v4l2_fmtdesc *f);
>> int iris_vdec_try_fmt(struct iris_inst *inst, struct v4l2_format *f);
>> int iris_vdec_s_fmt(struct iris_inst *inst, struct v4l2_format *f);
>> int iris_vdec_subscribe_event(struct iris_inst *inst, const struct v4l2_event_subscription *sub);
>> +int iris_vdec_streamon_input(struct iris_inst *inst);
>> +int iris_vdec_streamon_output(struct iris_inst *inst);
>> +void iris_vdec_session_streamoff(struct iris_inst *inst, u32 plane);
>>
>> #endif
>> diff --git a/drivers/media/platform/qcom/iris/iris_vidc.c b/drivers/media/platform/qcom/iris/iris_vidc.c
>> index 60ee05b67f86..615f57bfaddc 100644
>> --- a/drivers/media/platform/qcom/iris/iris_vidc.c
>> +++ b/drivers/media/platform/qcom/iris/iris_vidc.c
>> @@ -142,10 +142,12 @@ int iris_open(struct file *filp)
>>
>> inst->core = core;
>> inst->session_id = hash32_ptr(inst);
>> + inst->state = IRIS_INST_DEINIT;
>>
>> mutex_init(&inst->lock);
>> mutex_init(&inst->ctx_q_lock);
>> init_completion(&inst->completion);
>> + init_completion(&inst->flush_completion);
>>
>> iris_v4l2_fh_init(inst);
>>
>> @@ -191,6 +193,9 @@ static void iris_session_close(struct iris_inst *inst)
>> bool wait_for_response = true;
>> int ret;
>>
>> + if (inst->state == IRIS_INST_DEINIT)
>> + return;
>> +
>> reinit_completion(&inst->completion);
>>
>> ret = hfi_ops->session_close(inst);
>> @@ -198,7 +203,7 @@ static void iris_session_close(struct iris_inst *inst)
>> wait_for_response = false;
>>
>> if (wait_for_response)
>> - iris_wait_for_session_response(inst);
>> + iris_wait_for_session_response(inst, false);
>> }
>>
>> int iris_close(struct file *filp)
>> @@ -211,6 +216,7 @@ int iris_close(struct file *filp)
>> mutex_lock(&inst->lock);
>> iris_vdec_inst_deinit(inst);
>> iris_session_close(inst);
>> + iris_inst_change_state(inst, IRIS_INST_DEINIT);
>> iris_v4l2_fh_deinit(inst);
>> iris_remove_session(inst);
>> mutex_unlock(&inst->lock);
>> @@ -238,7 +244,14 @@ static int iris_try_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_form
>> int ret;
>>
>> mutex_lock(&inst->lock);
>> + if (inst->state == IRIS_INST_ERROR) {
>> + ret = -EBUSY;
>> + goto unlock;
>> + }
>
> Why this check? You should be able to try a format at any time.
>
That's correct, will remove the state check from here.
>> +
>> ret = iris_vdec_try_fmt(inst, f);
>> +
>> +unlock:
>> mutex_unlock(&inst->lock);
>>
>> return ret;
>> @@ -250,7 +263,14 @@ static int iris_s_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format
>> int ret;
>>
>> mutex_lock(&inst->lock);
>> + if (inst->state == IRIS_INST_ERROR) {
>> + ret = -EBUSY;
>> + goto unlock;
>> + }
I think it should be ok to remove check from s_fmt as well.
>> +
>> ret = iris_vdec_s_fmt(inst, f);
>> +
>> +unlock:
>> mutex_unlock(&inst->lock);
>>
>> return ret;
>> @@ -262,6 +282,11 @@ static int iris_g_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format
>> int ret = 0;
>>
>> mutex_lock(&inst->lock);
>> + if (inst->state == IRIS_INST_ERROR) {
>> + ret = -EBUSY;
>> + goto unlock;
>> + }
>
> Same question, this should be fine at any time.
>
Sure, will remove
Thanks,
Dikshita
>> +
>> if (V4L2_TYPE_IS_OUTPUT(f->type))
>> memcpy(f, inst->fmt_src, sizeof(*f));
>> else if (V4L2_TYPE_IS_CAPTURE(f->type))
>> @@ -269,6 +294,7 @@ static int iris_g_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format
>> else
>> ret = -EINVAL;
>>
>> +unlock:
>> mutex_unlock(&inst->lock);
>>
>> return ret;
>> @@ -402,6 +428,8 @@ static struct v4l2_file_operations iris_v4l2_file_ops = {
>>
>> static const struct vb2_ops iris_vb2_ops = {
>> .queue_setup = iris_vb2_queue_setup,
>> + .start_streaming = iris_vb2_start_streaming,
>> + .stop_streaming = iris_vb2_stop_streaming,
>> };
>>
>> static const struct v4l2_ioctl_ops iris_v4l2_ioctl_ops = {
>> @@ -421,6 +449,8 @@ static const struct v4l2_ioctl_ops iris_v4l2_ioctl_ops = {
>> .vidioc_g_selection = iris_g_selection,
>> .vidioc_subscribe_event = iris_subscribe_event,
>> .vidioc_unsubscribe_event = iris_unsubscribe_event,
>> + .vidioc_streamon = v4l2_m2m_ioctl_streamon,
>> + .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
>> };
>>
>> void iris_init_ops(struct iris_core *core)
>>
>
next prev parent reply other threads:[~2024-10-25 7:06 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-14 9:07 [PATCH v4 00/28] Qualcomm iris video decoder driver Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 01/28] dt-bindings: media: Add video support for QCOM SM8550 SoC Dikshita Agarwal
2024-10-14 11:57 ` Krzysztof Kozlowski
2024-10-14 9:07 ` [PATCH v4 02/28] media: iris: add platform driver for iris video device Dikshita Agarwal
2024-10-16 9:38 ` Uwe Kleine-König
2024-10-16 10:29 ` Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 03/28] media: iris: implement iris v4l2 file ops Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 04/28] media: iris: introduce iris core state management with shared queues Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 05/28] media: iris: implement video firmware load/unload Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 06/28] media: iris: implement boot sequence of the firmware Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 07/28] media: iris: introduce host firmware interface with necessary hooks Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 08/28] media: iris: implement power management Dikshita Agarwal
2024-10-15 11:25 ` kernel test robot
2024-10-15 12:07 ` kernel test robot
2024-10-14 9:07 ` [PATCH v4 09/28] media: iris: implement reqbuf ioctl with vb2_queue_setup Dikshita Agarwal
2024-10-23 9:59 ` Hans Verkuil
2024-10-23 10:17 ` Dikshita Agarwal
2024-10-23 11:25 ` Hans Verkuil
2024-10-23 11:33 ` Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 10/28] media: iris: implement s_fmt, g_fmt and try_fmt ioctls Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 11/28] media: iris: implement g_selection ioctl Dikshita Agarwal
2024-10-23 10:45 ` Hans Verkuil
2024-10-23 11:31 ` Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 12/28] media: iris: implement enum_fmt and enum_frameintervals ioctls Dikshita Agarwal
2024-10-23 10:49 ` Hans Verkuil
2024-10-23 11:38 ` Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 13/28] media: iris: implement subscribe_event and unsubscribe_event ioctls Dikshita Agarwal
2024-10-23 10:53 ` Hans Verkuil
2024-10-23 12:03 ` Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 14/28] media: iris: implement iris v4l2_ctrl_ops Dikshita Agarwal
2024-10-23 11:02 ` Hans Verkuil
2024-10-25 9:21 ` Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 15/28] media: iris: implement query_cap, query_ctrl and query_menu ioctls Dikshita Agarwal
2024-10-23 11:05 ` Hans Verkuil
2024-10-24 5:50 ` Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 16/28] media: iris: implement vb2 streaming ops Dikshita Agarwal
2024-10-23 11:13 ` Hans Verkuil
2024-10-25 7:06 ` Dikshita Agarwal [this message]
2024-10-14 9:07 ` [PATCH v4 17/28] media: iris: implement set properties to firmware during streamon Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 18/28] media: iris: subscribe parameters and properties to firmware for hfi_gen2 Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 19/28] media: iris: allocate, initialize and queue internal buffers Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 20/28] media: iris: implement vb2 ops for buf_queue and firmware response Dikshita Agarwal
2024-10-23 11:19 ` Hans Verkuil
2024-10-23 11:53 ` Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 21/28] media: iris: add support for dynamic resolution change Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 22/28] media: iris: handle streamoff/on from client in " Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 23/28] media: iris: add support for drain sequence Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 24/28] media: iris: add check whether the video session is supported or not Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 25/28] media: iris: implement power scaling for vpu2 and vpu3 Dikshita Agarwal
2024-10-17 6:08 ` kernel test robot
2024-10-19 11:38 ` kernel test robot
2024-10-14 9:07 ` [PATCH v4 26/28] media: iris: add check to allow sub states transitions Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 27/28] media: iris: enable video driver probe of SM8250 SoC Dikshita Agarwal
2024-10-14 14:00 ` Jianhua Lu
2024-10-14 14:08 ` Dmitry Baryshkov
2024-10-15 9:22 ` Dikshita Agarwal
2024-10-15 12:26 ` Dmitry Baryshkov
2024-10-25 7:03 ` Dikshita Agarwal
2024-10-14 9:07 ` [PATCH v4 28/28] media: MAINTAINERS: add Qualcomm iris video accelerator driver Dikshita Agarwal
2024-10-14 11:54 ` [PATCH v4 00/28] Qualcomm iris video decoder driver Krzysztof Kozlowski
2024-10-15 7:26 ` Dikshita Agarwal
2024-10-17 1:26 ` Bryan O'Donoghue
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