linux-kernel - Re: [PATCH v3 00/26] Enable H.264/H.265 encoder support and fixes in iris driver common code

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Message-ID: <d5335ff7-3d66-600e-edcb-c688bec74f59@quicinc.com>
Date: Mon, 25 Aug 2025 09:45:37 +0530
From: Dikshita Agarwal <quic_dikshita@...cinc.com>
To: Neil Armstrong <neil.armstrong@...aro.org>,
        Vikash Garodia
	<quic_vgarodia@...cinc.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        "Bryan
 O'Donoghue" <bryan.odonoghue@...aro.org>,
        Mauro Carvalho Chehab
	<mchehab@...nel.org>,
        Stefan Schmidt <stefan.schmidt@...aro.org>,
        "Vedang
 Nagar" <quic_vnagar@...cinc.com>,
        Hans Verkuil <hverkuil@...nel.org>
CC: <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Renjiang Han <quic_renjiang@...cinc.com>,
        Wangao Wang <quic_wangaow@...cinc.com>
Subject: Re: [PATCH v3 00/26] Enable H.264/H.265 encoder support and fixes in
 iris driver common code



On 8/22/2025 4:38 PM, Neil Armstrong wrote:
> On 22/08/2025 12:09, Vikash Garodia wrote:
>>
>> On 8/22/2025 1:47 PM, Neil Armstrong wrote:
>>> [  157.299604] qcom-iris aa00000.video-codec:
>>> <VFW_H:CmdDec:265e:a723e008:00>
>>> SetProperty(HFI_PROP_MAX_GOP_FRAMES) --> 0x0000003b
>>> [  157.311341] qcom-iris aa00000.video-codec:
>>> <VFW_H:CmdDec:265e:a723e008:00>
>>> Disabling ONE_SLICE mode, tiling:0 numTile:1 CP:0 SliceDelivery:0
>>> MultiSliceMode:0
>>> [  157.325847] qcom-iris aa00000.video-codec:
>>> <VFW_H:CmdDec:265e:a723e008:00>
>>> HFI_BUFFER_COMMON_INTERNAL_SCRATCH, Driver macro size = 9563648 vs FW
>>> HFI macro
>>> size = 7953920 vs FW golden buffer size = 5833728
>>> [  157.344542] qcom-iris aa00000.video-codec:
>>> <VFW_H:CmdDec:265e:a723e008:00>
>>> HFI_BUFFER_COMMON_INTERNAL_SCRATCH_1_NON_COMV, Driver macro size =
>>> 299008 vs FW
>>> HFI macro size = 299264 vs FW golden buffer size = 299264
>>> [  157.363944] qcom-iris aa00000.video-codec:
>>> <VFW_E:CmdDec:265e:a723e008:00>
>>> venc_c2Start(3860): Send HFI_CMD_START error response for port 1
>>> [  157.376855] qcom-iris aa00000.video-codec:
>>> <VFW_E:CmdDec:265e:a723e008:00>
>>> VenusVencCodecEmptyThisBuffer(6732): ETB received in wrong state!
>>> [  157.389836] qcom-iris aa00000.video-codec:
>>> <VFW_E:CmdDec:265e:a723e008:00>
>>> VenusVencCodecEmptyThisBuffer(6732): ETB received in wrong state!
>>> [  157.402827] qcom-iris aa00000.video-codec:
>>> <VFW_E:CmdDec:265e:a723e008:00>
>>> VenusVencCodecEmptyThisBuffer(6732): ETB received in wrong state!
>>> [  157.415816] qcom-iris aa00000.video-codec:
>>> <VFW_E:CmdDec:265e:a723e008:00>
>>> VenusVencCodecEmptyThisBuffer(6732): ETB received in wrong state!
>>> [  157.428832] qcom-iris aa00000.video-codec: session error received
>>> 0x1000005:
>>> unknown
>>> [  157.436848] qcom-iris aa00000.video-codec: session error received
>>> 0x1000005:
>>> unknown
>>
>> Thank you for the logs, the issue is due to driver non_comv macro size
>> (299008)
>> is less than firmware requirement (299264). Please try below fix, if that
>> works
>> for SM8650
>>
>> diff --git a/drivers/media/platform/qcom/iris/iris_vpu_buffer.c
>> b/drivers/media/platform/qcom/iris/iris_vpu_buffer.c
>> index 558dba37dbfbc..3247ad736a17c 100644
>> --- a/drivers/media/platform/qcom/iris/iris_vpu_buffer.c
>> +++ b/drivers/media/platform/qcom/iris/iris_vpu_buffer.c
>> @@ -967,7 +967,8 @@ static u32 iris_vpu_enc_non_comv_size(struct
>> iris_inst *inst)
>>          if (inst->codec == V4L2_PIX_FMT_HEVC) {
>>                  lcu_size = 32;
>>                  return hfi_buffer_non_comv_enc(width, height,
>> num_vpp_pipes,
>> -                                              lcu_size,
>> HFI_CODEC_ENCODE_HEVC);
>> +                                              lcu_size,
>> HFI_CODEC_ENCODE_HEVC) +
>> +                                              SIZE_ONE_SLICE_BUF;
>>          }
>>
>>          return hfi_buffer_non_comv_enc(width, height, num_vpp_pipes,
>> diff --git a/drivers/media/platform/qcom/iris/iris_vpu_buffer.h
>> b/drivers/media/platform/qcom/iris/iris_vpu_buffer.h
>> index 1ff1b07ecbaa8..94668c5b3d15f 100644
>> --- a/drivers/media/platform/qcom/iris/iris_vpu_buffer.h
>> +++ b/drivers/media/platform/qcom/iris/iris_vpu_buffer.h
>> @@ -41,6 +41,7 @@ struct iris_inst;
>> #define SIZE_SLIST_BUF_H265 (BIT(10))
>> #define H265_DISPLAY_BUF_SIZE (3072)
>> #define H265_NUM_FRM_INFO (48)
>> +#define SIZE_ONE_SLICE_BUF 256
>>
>> #define VP9_NUM_FRAME_INFO_BUF 32
>> #define VP9_NUM_PROBABILITY_TABLE_BUF (VP9_NUM_FRAME_INFO_BUF + 4)
> 
> Works like a charm !

Great!

> 
> Do you want me to add it to the iri33 buffer size patch I'm preparing ?

This change will go in common code, since it applies to all iris3 generations.

Thanks,
Dikshita
> 
> Thanks,
> Neil
> 
>>
>> Regards,
>> Vikash
>