linux-kernel - Re: [PATCH 2/3] venus: enable sufficient sequence change support for vp9

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Message-ID: <3b3e4cba-645a-f5b1-5efa-fb5932c78563@quicinc.com>
Date:   Wed, 5 Apr 2023 13:51:40 +0530
From:   Dikshita Agarwal <quic_dikshita@...cinc.com>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        <linux-media@...r.kernel.org>, <stanimir.k.varbanov@...il.com>,
        <quic_vgarodia@...cinc.com>, <agross@...nel.org>,
        <andersson@...nel.org>, <mchehab@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        "Viswanath Boma" <quic_vboma@...cinc.com>
Subject: Re: [PATCH 2/3] venus: enable sufficient sequence change support for
 vp9


On 4/5/2023 12:35 AM, Konrad Dybcio wrote:
>
> On 4.04.2023 08:17, Dikshita Agarwal wrote:
>> VP9 supports resolution change at interframe.
>> Currenlty, if sequence change is detected at interframe and
>> resources are sufficient, sequence change event is not raised
>> by firmware to driver until the next keyframe.
>> This change add the HFI to notify the sequence change in this
>> case to driver.
>>
>> Signed-off-by: Dikshita Agarwal <quic_dikshita@...cinc.com>
>> Signed-off-by: Vikash Garodia <quic_vgarodia@...cinc.com>
>> Signed-off-by: Viswanath Boma <quic_vboma@...cinc.com>
>> Tested-by: Nathan Hebert <nhebert@...omium.org>
>> ---
>>   drivers/media/platform/qcom/venus/hfi_cmds.c   | 1 +
>>   drivers/media/platform/qcom/venus/hfi_helper.h | 2 ++
>>   drivers/media/platform/qcom/venus/vdec.c       | 8 ++++++++
>>   3 files changed, 11 insertions(+)
>>
>> diff --git a/drivers/media/platform/qcom/venus/hfi_cmds.c b/drivers/media/platform/qcom/venus/hfi_cmds.c
>> index 930b743..e2539b5 100644
>> --- a/drivers/media/platform/qcom/venus/hfi_cmds.c
>> +++ b/drivers/media/platform/qcom/venus/hfi_cmds.c
>> @@ -521,6 +521,7 @@ static int pkt_session_set_property_1x(struct hfi_session_set_property_pkt *pkt,
>>   		pkt->shdr.hdr.size += sizeof(u32) + sizeof(*en);
>>   		break;
>>   	}
>> +	case HFI_PROPERTY_PARAM_VDEC_ENABLE_SUFFICIENT_SEQCHANGE_EVENT:
>>   	case HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER: {
>>   		struct hfi_enable *in = pdata;
>>   		struct hfi_enable *en = prop_data;
>> diff --git a/drivers/media/platform/qcom/venus/hfi_helper.h b/drivers/media/platform/qcom/venus/hfi_helper.h
>> index d2d6719..20516b4 100644
>> --- a/drivers/media/platform/qcom/venus/hfi_helper.h
>> +++ b/drivers/media/platform/qcom/venus/hfi_helper.h
>> @@ -469,6 +469,8 @@
>>   #define HFI_PROPERTY_PARAM_VDEC_PIXEL_BITDEPTH			0x1003007
>>   #define HFI_PROPERTY_PARAM_VDEC_PIC_STRUCT			0x1003009
>>   #define HFI_PROPERTY_PARAM_VDEC_COLOUR_SPACE			0x100300a
>> +#define HFI_PROPERTY_PARAM_VDEC_ENABLE_SUFFICIENT_SEQCHANGE_EVENT \
>> +								0x0100300b
> Also, nit: this one has a leading zero, whereas other properties don't
>
> Konrad

Sure, Will fix in next version.

Thanks,

Dikshita

>>   
>>   /*
>>    * HFI_PROPERTY_CONFIG_VDEC_COMMON_START
>> diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
>> index 4ceaba3..f0394b9 100644
>> --- a/drivers/media/platform/qcom/venus/vdec.c
>> +++ b/drivers/media/platform/qcom/venus/vdec.c
>> @@ -671,6 +671,14 @@ static int vdec_set_properties(struct venus_inst *inst)
>>   			return ret;
>>   	}
>>   
>> +	/* Enabling sufficient sequence change support for VP9 */
>> +	if (is_fw_rev_or_newer(inst->core, 5, 4, 51)) {
>> +		ptype = HFI_PROPERTY_PARAM_VDEC_ENABLE_SUFFICIENT_SEQCHANGE_EVENT;
>> +		ret = hfi_session_set_property(inst, ptype, &en);
>> +		if (ret)
>> +			return ret;
>> +	}
>> +
>>   	ptype = HFI_PROPERTY_PARAM_VDEC_CONCEAL_COLOR;
>>   	conceal = ctr->conceal_color & 0xffff;
>>   	conceal |= ((ctr->conceal_color >> 16) & 0xffff) << 10;