linux-kernel - Re: [PATCH 08/18] media: venus: hfi_venus: Fix version checks in venus_halt

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Message-ID: <3d424869-dcdb-5ef7-5cba-0025924e2f50@linaro.org>
Date:   Tue, 28 Feb 2023 17:01:10 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        Vikash Garodia <quic_vgarodia@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Dikshita Agarwal <dikshita@....qualcomm.com>,
        Dikshita Agarwal <dikshita@...eaurora.org>,
        Mansur Alisha Shaik <mansur@...eaurora.org>,
        Jonathan Marek <jonathan@...ek.ca>
Cc:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Vikash Garodia <vgarodia@...eaurora.org>
Subject: Re: [PATCH 08/18] media: venus: hfi_venus: Fix version checks in
 venus_halt_axi()



On 28.02.2023 16:36, Bryan O'Donoghue wrote:
> On 28/02/2023 15:24, Konrad Dybcio wrote:
>> Only IRIS2(_1) should enter the until-now-IS_V6() path and the
>> condition for skipping part of it should be IS_IRIS2_1 and not the
>> number of VPP pipes. Fix that.
>>
>> Fixes: 4b0b6e147dc9 ("media: venus: hfi: Add 6xx AXI halt logic")
>> Fixes: 78d434ba8659 ("media: venus: hfi: Skip AON register programming for V6 1pipe")
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
>> ---
>>   drivers/media/platform/qcom/venus/hfi_venus.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c
>> index 4d785e53aa0b..0d137e070407 100644
>> --- a/drivers/media/platform/qcom/venus/hfi_venus.c
>> +++ b/drivers/media/platform/qcom/venus/hfi_venus.c
>> @@ -550,10 +550,10 @@ static int venus_halt_axi(struct venus_hfi_device *hdev)
>>       u32 mask_val;
>>       int ret;
>>   -    if (IS_V6(hdev->core)) {
>> +    if (IS_IRIS2(hdev->core) || IS_IRIS2_1(hdev->core)) {
>>           writel(0x3, cpu_cs_base + CPU_CS_X2RPMH_V6);
>>   -        if (hdev->core->res->num_vpp_pipes == 1)
>> +        if (IS_IRIS2_1(hdev->core))
>>               goto skip_aon_mvp_noc;
>>             writel(0x1, aon_base + AON_WRAPPER_MVP_NOC_LPI_CONTROL);
>>
> 
> If you want to denote these as fixes, you need your patch 02/18 as a depend...
The main purpose of the Fixes tag is to mark commits that fix bugs in
existing code and it only assists in autoselecting stable patches.
Backporting this makes little sense, as we only support IRIS2 (8250)
and IRIS2_1 (7280) HFI6 platforms and new additions won't be backported.

Konrad
> 
> ---
> bod