linux-kernel - Re: [PATCH v2 1/3] venus: add firmware version based check

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Date:   Fri, 14 Apr 2023 01:08:20 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        Dikshita Agarwal <quic_dikshita@...cinc.com>,
        linux-media@...r.kernel.org, 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 v2 1/3] venus: add firmware version based check



On 14.04.2023 01:01, Konrad Dybcio wrote:
> 
> 
> On 11.04.2023 12:59, Konrad Dybcio wrote:
>>
>>
>> On 9.04.2023 07:18, Stanimir Varbanov wrote:
>>> Hi Dikshita,
>>>
>>> Thanks for the patch.
>>>
>>> On 7.04.23 г. 9:25 ч., Dikshita Agarwal wrote:
>>>> Add firmware version based checks to enable/disable
>>>> features for different SOCs.
>>>>
>>>> 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/core.h     | 20 ++++++++++++++++++++
>>>>   drivers/media/platform/qcom/venus/hfi_msgs.c | 11 +++++++++--
>>>>   2 files changed, 29 insertions(+), 2 deletions(-)
>>>>
>>>> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
>>>> index 32551c2..9d1e4b2 100644
>>>> --- a/drivers/media/platform/qcom/venus/core.h
>>>> +++ b/drivers/media/platform/qcom/venus/core.h
>>>> @@ -202,6 +202,11 @@ struct venus_core {
>>>>       unsigned int core0_usage_count;
>>>>       unsigned int core1_usage_count;
>>>>       struct dentry *root;
>>>> +    struct venus_img_version {
>>>> +        u32 major;
>>>> +        u32 minor;
>>>> +        u32 rev;
>>>> +    } venus_ver;
>>>>   };
>>>>     struct vdec_controls {
>>>> @@ -500,4 +505,19 @@ venus_caps_by_codec(struct venus_core *core, u32 codec, u32 domain)
>>>>       return NULL;
>>>>   }
>>>>   +static inline int
>>>> +is_fw_rev_or_newer(struct venus_core *core, u32 vmajor, u32 vminor, u32 vrev)
>>>> +{
>>>> +    return ((core)->venus_ver.major == vmajor &&
>>>> +        (core)->venus_ver.minor == vminor &&
>>>> +        (core)->venus_ver.rev >= vrev);
>>>> +}
>>>> +
>>>> +static inline int
>>>> +is_fw_rev_or_older(struct venus_core *core, u32 vmajor, u32 vminor, u32 vrev)
>>>> +{
>>>> +    return ((core)->venus_ver.major == vmajor &&
>>>> +        (core)->venus_ver.minor == vminor &&
>>>> +        (core)->venus_ver.rev <= vrev);
>>>> +}
>>>
>>> IMO those two should return bool
>>>
>>>>   #endif
>>>> diff --git a/drivers/media/platform/qcom/venus/hfi_msgs.c b/drivers/media/platform/qcom/venus/hfi_msgs.c
>>>> index df96db3..07ac0fc 100644
>>>> --- a/drivers/media/platform/qcom/venus/hfi_msgs.c
>>>> +++ b/drivers/media/platform/qcom/venus/hfi_msgs.c
>>>> @@ -248,9 +248,10 @@ static void hfi_sys_init_done(struct venus_core *core, struct venus_inst *inst,
>>>>   }
>>>>     static void
>>>> -sys_get_prop_image_version(struct device *dev,
>>>> +sys_get_prop_image_version(struct venus_core *core,
>>>>                  struct hfi_msg_sys_property_info_pkt *pkt)
>>>>   {
>>>> +    struct device *dev = core->dev;
>>>>       u8 *smem_tbl_ptr;
>>>>       u8 *img_ver;
>>>>       int req_bytes;
>>>> @@ -263,6 +264,12 @@ sys_get_prop_image_version(struct device *dev,
>>>>           return;
>>>>         img_ver = pkt->data;
>>>> +    if (IS_V4(core))
>>>> +        sscanf(img_ver, "14:VIDEO.VE.%u.%u-%u-PROD",
>>>> +               &core->venus_ver.major, &core->venus_ver.minor, &core->venus_ver.rev);
>>>> +    else if (IS_V6(core))
>>>> +        sscanf(img_ver, "14:VIDEO.VPU.%u.%u-%u-PROD",
>>>> +               &core->venus_ver.major, &core->venus_ver.minor, &core->venus_ver.rev);
>>>>   
>>>
>>> what about if IS_V1?
>> Whooops, I missed that in my review as well...
>>
>> Looks like the 8916 and 8996 FWs fall under the VIDEO.VE case
>> as well, that's the QC_VERSION_STRING they have..
> On top of that, my 8350 fw reports:
> 
> F/W version: 14:video-firmware.1.0-3fb5add1d3ac96f8f74facd537845a6ceb5a99e4
FWIW this cryptic version also needs fdata.device_addr = 0

(for reference - failling to do so will never stop the video
stream polling)

Konrad
> 
> Konrad
>>
>> Perhaps this could be an 
>>
>> if (IS_V6)
>> 	..
>> else
>> 	..
>>
>> Konrad
>>>
>>>>       dev_dbg(dev, VDBGL "F/W version: %s\n", img_ver);
>>>
>>> this will crash for v1.
>>>
>>>>   @@ -286,7 +293,7 @@ static void hfi_sys_property_info(struct venus_core *core,
>>>>         switch (pkt->property) {
>>>>       case HFI_PROPERTY_SYS_IMAGE_VERSION:
>>>> -        sys_get_prop_image_version(dev, pkt);
>>>> +        sys_get_prop_image_version(core, pkt);
>>>>           break;
>>>>       default:
>>>>           dev_dbg(dev, VDBGL "unknown property data\n");
>>>