2017-03-30 09:19:00

by Alexandre Courbot

[permalink] [raw]
Subject: [PATCH 1/2] dt-bindings: Add documentation for GP10B GPU

GP10B's definition is mostly similar to GK20A's and GM20B's. The only
noticeable difference is the use of power domains instead of a regulator
for power supply.

Signed-off-by: Alexandre Courbot <[email protected]>
---
.../devicetree/bindings/gpu/nvidia,gk20a.txt | 25 +++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
index ff3db65e50de..b7e4c7444510 100644
--- a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
+++ b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
@@ -5,6 +5,7 @@ Required properties:
Currently recognized values:
- nvidia,gk20a
- nvidia,gm20b
+ - nvidia,gp10b
- reg: Physical base address and length of the controller's registers.
Must contain two entries:
- first entry for bar0
@@ -14,7 +15,8 @@ Required properties:
- interrupt-names: Must include the following entries:
- stall
- nonstall
-- vdd-supply: regulator for supply voltage.
+- vdd-supply: regulator for supply voltage. Only required for GPUs not using
+ power domains.
- clocks: Must contain an entry for each entry in clock-names.
See ../clocks/clock-bindings.txt for details.
- clock-names: Must include the following entries:
@@ -27,6 +29,8 @@ is also required:
See ../reset/reset.txt for details.
- reset-names: Must include the following entries:
- gpu
+- power-domains: GPUs that make use of power domains can define this property
+ instead of vdd-supply. Currently "nvidia,gp10b" makes use of this.

Optional properties:
- iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
@@ -68,3 +72,22 @@ Example for GM20B:
iommus = <&mc TEGRA_SWGROUP_GPU>;
status = "disabled";
};
+
+Example for GP10B:
+
+ gpu@17000000 {
+ compatible = "nvidia,gp10b";
+ reg = <0x0 0x17000000 0x0 0x1000000>,
+ <0x0 0x18000000 0x0 0x1000000>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "stall", "nonstall";
+ clocks = <&bpmp TEGRA186_CLK_GPCCLK>,
+ <&bpmp TEGRA186_CLK_GPU>;
+ clock-names = "gpu", "pwr";
+ resets = <&bpmp TEGRA186_RESET_GPU>;
+ reset-names = "gpu";
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_GPU>;
+ iommus = <&smmu TEGRA186_SID_GPU>;
+ status = "disabled";
+ };
--
2.12.0


2017-03-30 09:19:04

by Alexandre Courbot

[permalink] [raw]
Subject: [PATCH 2/2] arm64: tegra: Add GPU node for Tegra 186

Add the DT node for the GP10B GPU on Tegra 186.

Signed-off-by: Alexandre Courbot <[email protected]>
---
arch/arm64/boot/dts/nvidia/tegra186.dtsi | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index b4c71b519289..7ada0c5b0581 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -660,6 +660,24 @@
};
};

+ gpu@17000000 {
+ compatible = "nvidia,gp10b";
+ reg = <0x0 0x17000000 0x0 0x1000000>
+ <0x0 0x18000000 0x0 0x1000000>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "stall", "nonstall";
+
+ clocks = <&bpmp TEGRA186_CLK_GPCCLK>,
+ <&bpmp TEGRA186_CLK_GPU>;
+ clock-names = "gpu", "pwr";
+ resets = <&bpmp TEGRA186_RESET_GPU>;
+ reset-names = "gpu";
+ status = "disabled";
+
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_GPU>;
+ };
+
sysram@30000000 {
compatible = "nvidia,tegra186-sysram", "mmio-sram";
reg = <0x0 0x30000000 0x0 0x50000>;
--
2.12.0

2017-03-30 09:26:56

by Alexandre Courbot

[permalink] [raw]
Subject: [PATCH v2] dt-bindings: Add documentation for GP10B GPU

GP10B's definition is mostly similar to GK20A's and GM20B's. The only
noticeable difference is the use of power domains instead of a regulator
for power supply.

Signed-off-by: Alexandre Courbot <[email protected]>
---
Changes since v1:
- It's much better when it compiles.

.../devicetree/bindings/gpu/nvidia,gk20a.txt | 25 +++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
index ff3db65e50de..b7e4c7444510 100644
--- a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
+++ b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
@@ -5,6 +5,7 @@ Required properties:
Currently recognized values:
- nvidia,gk20a
- nvidia,gm20b
+ - nvidia,gp10b
- reg: Physical base address and length of the controller's registers.
Must contain two entries:
- first entry for bar0
@@ -14,7 +15,8 @@ Required properties:
- interrupt-names: Must include the following entries:
- stall
- nonstall
-- vdd-supply: regulator for supply voltage.
+- vdd-supply: regulator for supply voltage. Only required for GPUs not using
+ power domains.
- clocks: Must contain an entry for each entry in clock-names.
See ../clocks/clock-bindings.txt for details.
- clock-names: Must include the following entries:
@@ -27,6 +29,8 @@ is also required:
See ../reset/reset.txt for details.
- reset-names: Must include the following entries:
- gpu
+- power-domains: GPUs that make use of power domains can define this property
+ instead of vdd-supply. Currently "nvidia,gp10b" makes use of this.

Optional properties:
- iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
@@ -68,3 +72,22 @@ Example for GM20B:
iommus = <&mc TEGRA_SWGROUP_GPU>;
status = "disabled";
};
+
+Example for GP10B:
+
+ gpu@17000000 {
+ compatible = "nvidia,gp10b";
+ reg = <0x0 0x17000000 0x0 0x1000000>,
+ <0x0 0x18000000 0x0 0x1000000>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "stall", "nonstall";
+ clocks = <&bpmp TEGRA186_CLK_GPCCLK>,
+ <&bpmp TEGRA186_CLK_GPU>;
+ clock-names = "gpu", "pwr";
+ resets = <&bpmp TEGRA186_RESET_GPU>;
+ reset-names = "gpu";
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_GPU>;
+ iommus = <&smmu TEGRA186_SID_GPU>;
+ status = "disabled";
+ };
--
2.12.0

2017-03-30 09:28:40

by Alexandre Courbot

[permalink] [raw]
Subject: [PATCH v2] arm64: tegra: Add GPU node for Tegra 186

Add the DT node for the GP10B GPU on Tegra 186.

Signed-off-by: Alexandre Courbot <[email protected]>
---
arch/arm64/boot/dts/nvidia/tegra186.dtsi | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index b4c71b519289..9ee6c439fb02 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -660,6 +660,24 @@
};
};

+ gpu@17000000 {
+ compatible = "nvidia,gp10b";
+ reg = <0x0 0x17000000 0x0 0x1000000>,
+ <0x0 0x18000000 0x0 0x1000000>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "stall", "nonstall";
+
+ clocks = <&bpmp TEGRA186_CLK_GPCCLK>,
+ <&bpmp TEGRA186_CLK_GPU>;
+ clock-names = "gpu", "pwr";
+ resets = <&bpmp TEGRA186_RESET_GPU>;
+ reset-names = "gpu";
+ status = "disabled";
+
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_GPU>;
+ };
+
sysram@30000000 {
compatible = "nvidia,tegra186-sysram", "mmio-sram";
reg = <0x0 0x30000000 0x0 0x50000>;
--
2.12.0

2017-03-31 12:56:58

by Thierry Reding

[permalink] [raw]
Subject: Re: [PATCH v2] dt-bindings: Add documentation for GP10B GPU

On Thu, Mar 30, 2017 at 06:26:44PM +0900, Alexandre Courbot wrote:
> GP10B's definition is mostly similar to GK20A's and GM20B's. The only
> noticeable difference is the use of power domains instead of a regulator
> for power supply.
>
> Signed-off-by: Alexandre Courbot <[email protected]>
> ---
> Changes since v1:
> - It's much better when it compiles.
>
> .../devicetree/bindings/gpu/nvidia,gk20a.txt | 25 +++++++++++++++++++++-
> 1 file changed, 24 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
> index ff3db65e50de..b7e4c7444510 100644
> --- a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
> +++ b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
> @@ -5,6 +5,7 @@ Required properties:
> Currently recognized values:
> - nvidia,gk20a
> - nvidia,gm20b
> + - nvidia,gp10b
> - reg: Physical base address and length of the controller's registers.
> Must contain two entries:
> - first entry for bar0
> @@ -14,7 +15,8 @@ Required properties:
> - interrupt-names: Must include the following entries:
> - stall
> - nonstall
> -- vdd-supply: regulator for supply voltage.
> +- vdd-supply: regulator for supply voltage. Only required for GPUs not using
> + power domains.
> - clocks: Must contain an entry for each entry in clock-names.
> See ../clocks/clock-bindings.txt for details.
> - clock-names: Must include the following entries:
> @@ -27,6 +29,8 @@ is also required:
> See ../reset/reset.txt for details.
> - reset-names: Must include the following entries:
> - gpu
> +- power-domains: GPUs that make use of power domains can define this property
> + instead of vdd-supply. Currently "nvidia,gp10b" makes use of this.
>
> Optional properties:
> - iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
> @@ -68,3 +72,22 @@ Example for GM20B:
> iommus = <&mc TEGRA_SWGROUP_GPU>;
> status = "disabled";
> };
> +
> +Example for GP10B:
> +
> + gpu@17000000 {
> + compatible = "nvidia,gp10b";
> + reg = <0x0 0x17000000 0x0 0x1000000>,
> + <0x0 0x18000000 0x0 0x1000000>;

Would it make sense to add a reg-names property to give these meaning? I
know that the binding describes what each entry is, but having the names
specified in a property would make it more immediately obvious.

Just a thought, otherwise looks good to me.

Thierry


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2017-04-03 15:56:03

by Rob Herring

[permalink] [raw]
Subject: Re: [PATCH v2] dt-bindings: Add documentation for GP10B GPU

On Thu, Mar 30, 2017 at 06:26:44PM +0900, Alexandre Courbot wrote:
> GP10B's definition is mostly similar to GK20A's and GM20B's. The only
> noticeable difference is the use of power domains instead of a regulator
> for power supply.
>
> Signed-off-by: Alexandre Courbot <[email protected]>
> ---
> Changes since v1:
> - It's much better when it compiles.
>
> .../devicetree/bindings/gpu/nvidia,gk20a.txt | 25 +++++++++++++++++++++-
> 1 file changed, 24 insertions(+), 1 deletion(-)

Acked-by: Rob Herring <[email protected]>

2017-04-04 13:22:03

by Thierry Reding

[permalink] [raw]
Subject: Re: [PATCH v2] dt-bindings: Add documentation for GP10B GPU

On Thu, Mar 30, 2017 at 06:26:44PM +0900, Alexandre Courbot wrote:
> GP10B's definition is mostly similar to GK20A's and GM20B's. The only
> noticeable difference is the use of power domains instead of a regulator
> for power supply.
>
> Signed-off-by: Alexandre Courbot <[email protected]>
> ---
> Changes since v1:
> - It's much better when it compiles.
>
> .../devicetree/bindings/gpu/nvidia,gk20a.txt | 25 +++++++++++++++++++++-
> 1 file changed, 24 insertions(+), 1 deletion(-)

Applied to for-4.12/arm64/dt, thanks.

Thierry


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2017-04-04 13:22:22

by Thierry Reding

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Subject: Re: [PATCH v2] arm64: tegra: Add GPU node for Tegra 186

On Thu, Mar 30, 2017 at 06:28:28PM +0900, Alexandre Courbot wrote:
> Add the DT node for the GP10B GPU on Tegra 186.
>
> Signed-off-by: Alexandre Courbot <[email protected]>
> ---
> arch/arm64/boot/dts/nvidia/tegra186.dtsi | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)

Applied to for-4.12/arm64/dt, thanks.

Thierry


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2017-04-08 10:20:38

by Alexandre Courbot

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Subject: Re: [PATCH v2] dt-bindings: Add documentation for GP10B GPU

On Fri, Mar 31, 2017 at 9:56 PM, Thierry Reding
<[email protected]> wrote:
> On Thu, Mar 30, 2017 at 06:26:44PM +0900, Alexandre Courbot wrote:
>> GP10B's definition is mostly similar to GK20A's and GM20B's. The only
>> noticeable difference is the use of power domains instead of a regulator
>> for power supply.
>>
>> Signed-off-by: Alexandre Courbot <[email protected]>
>> ---
>> Changes since v1:
>> - It's much better when it compiles.
>>
>> .../devicetree/bindings/gpu/nvidia,gk20a.txt | 25 +++++++++++++++++++++-
>> 1 file changed, 24 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
>> index ff3db65e50de..b7e4c7444510 100644
>> --- a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
>> +++ b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
>> @@ -5,6 +5,7 @@ Required properties:
>> Currently recognized values:
>> - nvidia,gk20a
>> - nvidia,gm20b
>> + - nvidia,gp10b
>> - reg: Physical base address and length of the controller's registers.
>> Must contain two entries:
>> - first entry for bar0
>> @@ -14,7 +15,8 @@ Required properties:
>> - interrupt-names: Must include the following entries:
>> - stall
>> - nonstall
>> -- vdd-supply: regulator for supply voltage.
>> +- vdd-supply: regulator for supply voltage. Only required for GPUs not using
>> + power domains.
>> - clocks: Must contain an entry for each entry in clock-names.
>> See ../clocks/clock-bindings.txt for details.
>> - clock-names: Must include the following entries:
>> @@ -27,6 +29,8 @@ is also required:
>> See ../reset/reset.txt for details.
>> - reset-names: Must include the following entries:
>> - gpu
>> +- power-domains: GPUs that make use of power domains can define this property
>> + instead of vdd-supply. Currently "nvidia,gp10b" makes use of this.
>>
>> Optional properties:
>> - iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
>> @@ -68,3 +72,22 @@ Example for GM20B:
>> iommus = <&mc TEGRA_SWGROUP_GPU>;
>> status = "disabled";
>> };
>> +
>> +Example for GP10B:
>> +
>> + gpu@17000000 {
>> + compatible = "nvidia,gp10b";
>> + reg = <0x0 0x17000000 0x0 0x1000000>,
>> + <0x0 0x18000000 0x0 0x1000000>;
>
> Would it make sense to add a reg-names property to give these meaning? I
> know that the binding describes what each entry is, but having the names
> specified in a property would make it more immediately obvious.

Would certainly work, especially since we have been doing this for
other properties. Is there an obvious pro to doing this though?