[v3,2/2] drivers: arm-smmu-impl: Add QDU1000 and QRU1000 iommu implementation

Message ID 20221026190534.4004945-3-quic_molvera@quicinc.com
State New
Headers
Series Add smmu support for QDU1000/QRU1000 SoCs |

Commit Message

Melody Olvera Oct. 26, 2022, 7:05 p.m. UTC
  Add compatible for Qualcomm QDU1000 and QRU1000 SoCs to add iommu
support for them.

Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
---
 drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 +
 1 file changed, 1 insertion(+)
  

Comments

Krzysztof Kozlowski Nov. 14, 2022, 2:28 p.m. UTC | #1
On 26/10/2022 21:05, Melody Olvera wrote:
> Add compatible for Qualcomm QDU1000 and QRU1000 SoCs to add iommu
> support for them.
> 
> Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
> ---
>  drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> index b2708de25ea3..0580a381a04b 100644
> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> @@ -426,6 +426,7 @@ static struct arm_smmu_device *qcom_smmu_create(struct arm_smmu_device *smmu,
>  static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = {
>  	{ .compatible = "qcom,msm8998-smmu-v2" },
>  	{ .compatible = "qcom,qcm2290-smmu-500" },
> +	{ .compatible = "qcom,qdu1000-smmu-500" },

The patch was applied but it contradicts work here:
https://lore.kernel.org/all/20221102184420.534094-12-dmitry.baryshkov@linaro.org/
which explicitly asks not to add such compatibles...

Best regards,
Krzysztof
  
Will Deacon Nov. 14, 2022, 2:42 p.m. UTC | #2
On Mon, Nov 14, 2022 at 03:28:15PM +0100, Krzysztof Kozlowski wrote:
> On 26/10/2022 21:05, Melody Olvera wrote:
> > Add compatible for Qualcomm QDU1000 and QRU1000 SoCs to add iommu
> > support for them.
> > 
> > Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
> > ---
> >  drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> > index b2708de25ea3..0580a381a04b 100644
> > --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> > +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> > @@ -426,6 +426,7 @@ static struct arm_smmu_device *qcom_smmu_create(struct arm_smmu_device *smmu,
> >  static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = {
> >  	{ .compatible = "qcom,msm8998-smmu-v2" },
> >  	{ .compatible = "qcom,qcm2290-smmu-500" },
> > +	{ .compatible = "qcom,qdu1000-smmu-500" },
> 
> The patch was applied but it contradicts work here:
> https://lore.kernel.org/all/20221102184420.534094-12-dmitry.baryshkov@linaro.org/
> which explicitly asks not to add such compatibles...

Sure, but we've been adding new compatibles for years so I don't mind
picking up the last few now before we stop accepting new ones.

I already asked Dmitry to respin his series as there are some open comments
from others anyway.

Will
  
Krzysztof Kozlowski Nov. 14, 2022, 3:53 p.m. UTC | #3
On 14/11/2022 15:42, Will Deacon wrote:
> On Mon, Nov 14, 2022 at 03:28:15PM +0100, Krzysztof Kozlowski wrote:
>> On 26/10/2022 21:05, Melody Olvera wrote:
>>> Add compatible for Qualcomm QDU1000 and QRU1000 SoCs to add iommu
>>> support for them.
>>>
>>> Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
>>> ---
>>>  drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
>>> index b2708de25ea3..0580a381a04b 100644
>>> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
>>> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
>>> @@ -426,6 +426,7 @@ static struct arm_smmu_device *qcom_smmu_create(struct arm_smmu_device *smmu,
>>>  static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = {
>>>  	{ .compatible = "qcom,msm8998-smmu-v2" },
>>>  	{ .compatible = "qcom,qcm2290-smmu-500" },
>>> +	{ .compatible = "qcom,qdu1000-smmu-500" },
>>
>> The patch was applied but it contradicts work here:
>> https://lore.kernel.org/all/20221102184420.534094-12-dmitry.baryshkov@linaro.org/
>> which explicitly asks not to add such compatibles...
> 
> Sure, but we've been adding new compatibles for years so I don't mind
> picking up the last few now before we stop accepting new ones.
> 
> I already asked Dmitry to respin his series as there are some open comments
> from others anyway.

OK. This also solves my other comment for other patch.

Best regards,
Krzysztof
  

Patch

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
index b2708de25ea3..0580a381a04b 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
@@ -426,6 +426,7 @@  static struct arm_smmu_device *qcom_smmu_create(struct arm_smmu_device *smmu,
 static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = {
 	{ .compatible = "qcom,msm8998-smmu-v2" },
 	{ .compatible = "qcom,qcm2290-smmu-500" },
+	{ .compatible = "qcom,qdu1000-smmu-500" },
 	{ .compatible = "qcom,sc7180-smmu-500" },
 	{ .compatible = "qcom,sc7280-smmu-500" },
 	{ .compatible = "qcom,sc8180x-smmu-500" },