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[PATCH 2/7] drm/msm/adreno: Add ZAP firmware name to A635

Konrad Dybcio posted 7 patches 2 years, 4 months ago
There is a newer version of this series
[PATCH 2/7] drm/msm/adreno: Add ZAP firmware name to A635
Posted by Konrad Dybcio 2 years, 4 months ago 
Some (many?) devices with A635 expect a ZAP shader to be loaded.

Set the file name to allow for that.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/gpu/drm/msm/adreno/adreno_device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index fa527935ffd4..16527fe8584d 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -454,6 +454,7 @@ static const struct adreno_info gpulist[] = {
 		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
 			ADRENO_QUIRK_HAS_HW_APRIV,
 		.init = a6xx_gpu_init,
+		.zapfw = "a660_zap.mbn",
 		.hwcg = a660_hwcg,
 		.address_space_size = SZ_16G,
 		.speedbins = ADRENO_SPEEDBINS(

-- 
2.42.0
Re: [PATCH 2/7] drm/msm/adreno: Add ZAP firmware name to A635
Posted by Akhil P Oommen 2 years, 3 months ago 
On Tue, Sep 26, 2023 at 08:24:37PM +0200, Konrad Dybcio wrote:
> 
> Some (many?) devices with A635 expect a ZAP shader to be loaded.
> 
> Set the file name to allow for that.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/gpu/drm/msm/adreno/adreno_device.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> index fa527935ffd4..16527fe8584d 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> @@ -454,6 +454,7 @@ static const struct adreno_info gpulist[] = {
>  		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
>  			ADRENO_QUIRK_HAS_HW_APRIV,
>  		.init = a6xx_gpu_init,
> +		.zapfw = "a660_zap.mbn",

sc7280 doesn't have a TZ and so no zap shader support. Can we handle
this using "firmware-name" property in your top level platform dt? Zap
firmwares are signed with different keys for each OEMs. So there is
cross-compatibility anyway.

-Ahil.

>  		.hwcg = a660_hwcg,
>  		.address_space_size = SZ_16G,
>  		.speedbins = ADRENO_SPEEDBINS(
> 
> -- 
> 2.42.0
>
Re: [PATCH 2/7] drm/msm/adreno: Add ZAP firmware name to A635
Posted by Rob Clark 2 years, 3 months ago 
On Mon, Oct 16, 2023 at 1:12 PM Akhil P Oommen <quic_akhilpo@quicinc.com> wrote:
>
> On Tue, Sep 26, 2023 at 08:24:37PM +0200, Konrad Dybcio wrote:
> >
> > Some (many?) devices with A635 expect a ZAP shader to be loaded.
> >
> > Set the file name to allow for that.
> >
> > Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> > ---
> >  drivers/gpu/drm/msm/adreno/adreno_device.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> > index fa527935ffd4..16527fe8584d 100644
> > --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> > +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> > @@ -454,6 +454,7 @@ static const struct adreno_info gpulist[] = {
> >               .quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
> >                       ADRENO_QUIRK_HAS_HW_APRIV,
> >               .init = a6xx_gpu_init,
> > +             .zapfw = "a660_zap.mbn",
>
> sc7280 doesn't have a TZ and so no zap shader support. Can we handle
> this using "firmware-name" property in your top level platform dt? Zap
> firmwares are signed with different keys for each OEMs. So there is
> cross-compatibility anyway.

I think this ends up working out because the version of sc7280 that
doesn't have TZ also doesn't have the associated mem-region/etc..  but
maybe we should deprecate the zapfw field as in practice it isn't
useful (ie. always overriden by firmware-name).

Fwiw there are windows laptops with sc7180/sc7280 which do use zap fw.

BR,
-R

>
> -Ahil.
>
> >               .hwcg = a660_hwcg,
> >               .address_space_size = SZ_16G,
> >               .speedbins = ADRENO_SPEEDBINS(
> >
> > --
> > 2.42.0
> >
Re: [PATCH 2/7] drm/msm/adreno: Add ZAP firmware name to A635
Posted by Akhil P Oommen 2 years, 3 months ago 
On Tue, Oct 17, 2023 at 12:33:45AM -0700, Rob Clark wrote:
> 
> On Mon, Oct 16, 2023 at 1:12 PM Akhil P Oommen <quic_akhilpo@quicinc.com> wrote:
> >
> > On Tue, Sep 26, 2023 at 08:24:37PM +0200, Konrad Dybcio wrote:
> > >
> > > Some (many?) devices with A635 expect a ZAP shader to be loaded.
> > >
> > > Set the file name to allow for that.
> > >
> > > Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> > > ---
> > >  drivers/gpu/drm/msm/adreno/adreno_device.c | 1 +
> > >  1 file changed, 1 insertion(+)
> > >
> > > diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> > > index fa527935ffd4..16527fe8584d 100644
> > > --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> > > +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> > > @@ -454,6 +454,7 @@ static const struct adreno_info gpulist[] = {
> > >               .quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
> > >                       ADRENO_QUIRK_HAS_HW_APRIV,
> > >               .init = a6xx_gpu_init,
> > > +             .zapfw = "a660_zap.mbn",
> >
> > sc7280 doesn't have a TZ and so no zap shader support. Can we handle
> > this using "firmware-name" property in your top level platform dt? Zap
> > firmwares are signed with different keys for each OEMs. So there is
> > cross-compatibility anyway.
I had a typo here. I meant "no cross compatibility".

> 
> I think this ends up working out because the version of sc7280 that
> doesn't have TZ also doesn't have the associated mem-region/etc..  but
> maybe we should deprecate the zapfw field as in practice it isn't
> useful (ie. always overriden by firmware-name).
Sounds good.

> 
> Fwiw there are windows laptops with sc7180/sc7280 which do use zap fw.
Aah! right.
> 
> BR,
> -R
> 
> >
> > -Ahil.
> >
> > >               .hwcg = a660_hwcg,
> > >               .address_space_size = SZ_16G,
> > >               .speedbins = ADRENO_SPEEDBINS(
> > >
> > > --
> > > 2.42.0
> > >
Re: [PATCH 2/7] drm/msm/adreno: Add ZAP firmware name to A635
Posted by Konrad Dybcio 2 years, 3 months ago 

On 10/17/23 09:33, Rob Clark wrote:
> On Mon, Oct 16, 2023 at 1:12 PM Akhil P Oommen <quic_akhilpo@quicinc.com> wrote:
>>
>> On Tue, Sep 26, 2023 at 08:24:37PM +0200, Konrad Dybcio wrote:
>>>
>>> Some (many?) devices with A635 expect a ZAP shader to be loaded.
>>>
>>> Set the file name to allow for that.
>>>
>>> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
>>> ---
>>>   drivers/gpu/drm/msm/adreno/adreno_device.c | 1 +
>>>   1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
>>> index fa527935ffd4..16527fe8584d 100644
>>> --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
>>> +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
>>> @@ -454,6 +454,7 @@ static const struct adreno_info gpulist[] = {
>>>                .quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
>>>                        ADRENO_QUIRK_HAS_HW_APRIV,
>>>                .init = a6xx_gpu_init,
>>> +             .zapfw = "a660_zap.mbn",
>>
>> sc7280 doesn't have a TZ and so no zap shader support. Can we handle
>> this using "firmware-name" property in your top level platform dt? Zap
>> firmwares are signed with different keys for each OEMs. So there is
>> cross-compatibility anyway.
> 
> I think this ends up working out because the version of sc7280 that
> doesn't have TZ also doesn't have the associated mem-region/etc..
Yes

> but
> maybe we should deprecate the zapfw field as in practice it isn't
> useful (ie. always overriden by firmware-name).
Also yes, we've discussed that on IRC once

> 
> Fwiw there are windows laptops with sc7180/sc7280 which do use zap fw.
Correct, e.g. the SC7180 Acer Aspire 1 that is supported upstream.

Konrad

Konrad

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