linux-kernel - Re: [PATCH 07/18] media: venus: core: Assign registers based on VPU version

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Date:   Tue, 7 Mar 2023 12:18:29 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Dikshita Agarwal <quic_dikshita@...cinc.com>,
        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>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        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 07/18] media: venus: core: Assign registers based on VPU
 version



On 7.03.2023 05:57, Dikshita Agarwal wrote:
> 
> On 2/28/2023 8:54 PM, Konrad Dybcio wrote:
>> IRIS2(_1) has a different register map compared to other HFI6XX-
>> using VPUs. Take care of it.
>>
>> Signed-off-by: Konrad Dybcio<konrad.dybcio@...aro.org>
>> ---
>>   drivers/media/platform/qcom/venus/core.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
>> index c13436d58ed3..bdc14acc8399 100644
>> --- a/drivers/media/platform/qcom/venus/core.c
>> +++ b/drivers/media/platform/qcom/venus/core.c
>> @@ -246,7 +246,7 @@ static int venus_enumerate_codecs(struct venus_core *core, u32 type)
>>     static void venus_assign_register_offsets(struct venus_core *core)
>>   {
>> -    if (IS_V6(core)) {
>> +    if (IS_IRIS2(core) || IS_IRIS2_1(core)) {
>>           core->vbif_base = core->base + VBIF_BASE;
>>           core->cpu_base = core->base + CPU_BASE_V6;
>>           core->cpu_cs_base = core->base + CPU_CS_BASE_V6;
> 
> AR50_LITE also should be added here, as I see you have added the same to places where we are using V6 based registers.
> 
> if the base addresses are not assigned here properly. the register writing at other places will be wrong, ex: patch 05/18
I have a separate patch set which specifically adds AR50L data,
and they're not 1:1, vbif_base and aon_base are gone (at least
according to techpack/video). I intend to push it when I get it
all working, but here's what it looks like right now:


diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index fd9ecb1f7a05..f88b4781c5d0 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -254,6 +254,14 @@ static void venus_assign_register_offsets(struct venus_core *core)
                core->wrapper_base = core->base + WRAPPER_BASE_V6;
                core->wrapper_tz_base = core->base + WRAPPER_TZ_BASE_V6;
                core->aon_base = core->base + AON_BASE_V6;
+       } else if (IS_AR50_LITE(core)) {
+               core->vbif_base = NULL;
+               core->cpu_base = core->base + CPU_BASE_V6;
+               core->cpu_cs_base = core->base + CPU_CS_BASE_V6;
+               core->cpu_ic_base = core->base + CPU_IC_BASE_V6;
+               core->wrapper_base = core->base + WRAPPER_BASE_V6;
+               core->wrapper_tz_base = core->base + WRAPPER_TZ_BASE_V6;
+               core->aon_base = NULL;
        } else {
                core->vbif_base = core->base + VBIF_BASE;
                core->cpu_base = core->base + CPU_BASE;
-- 
2.39.2


Konrad

> 
> Thanks,
> 
> Dikshita
>