Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-09 Thread Jon Mason 
On Sat, Nov 07, 2015 at 12:41:21AM +0100, Hauke Mehrtens wrote:
> On 11/07/2015 12:27 AM, Hauke Mehrtens wrote:
> > On 11/06/2015 11:54 PM, Jon Mason wrote:
> >> On Fri, Nov 06, 2015 at 10:42:41PM +0100, Hauke Mehrtens wrote:
> >>> On 11/06/2015 10:11 PM, Kapil Hali wrote:
>  From: Jon Mason 
> 
>  Add SMP support for Broadcom's 4708 SoCs.
> 
>  Signed-off-by: Jon Mason 
>  Acked-by: Hauke Mehrtens 
>  Tested-by: Hauke Mehrtens 
>  Signed-off-by: Kapil Hali 
> >>>
> >>> I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.
> >>>
>  ---
>   arch/arm/boot/dts/bcm4708.dtsi | 2 ++
>   arch/arm/mach-bcm/Kconfig  | 1 +
>   arch/arm/mach-bcm/Makefile | 3 +++
>   3 files changed, 6 insertions(+)
> 
> >>>
> >>> ...
> >>>
>  --- a/arch/arm/mach-bcm/Kconfig
>  +++ b/arch/arm/mach-bcm/Kconfig
>  @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
>   config ARCH_BCM_5301X
>   bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
>   select ARCH_BCM_IPROC
> >>>
> >>> You activated ARM_ERRATA_764369 for NSP is this not needed for NS?
> >>
> >> I'm not certain the CPU version, and without that it is difficult to
> >> know what errata's are present in the underlying hardware.  My guess
> >> is that all present in NSP are present in NS (for UP and SMP).  This
> >> would put it as:
> >> select ARM_ERRATA_754322
> >> select ARM_ERRATA_775420
> >> select ARM_ERRATA_764369 if SMP
> >>
> >> Would you like me to have them added?
> >>
> > 
> > I will send a separate patch adding all the workarounds for erratas in
> > the CPU core and the cache controller.
> > 
> > Hauke
> > 
> > 
> Hi,
> 
> BCM4708 uses a Cortex-A9 rev r3p0 and a L2C-310 rev r3p2. For this CPU
> and cache controller the same workaround are needed as for NSP, if you
> will resend this patch, please add all of them.

Agreed.  Kapil or I will mod the patch.

Thanks,
Jon

> 
> Hauke
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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-09 Thread Jon Mason 
On Sat, Nov 07, 2015 at 12:41:21AM +0100, Hauke Mehrtens wrote:
> On 11/07/2015 12:27 AM, Hauke Mehrtens wrote:
> > On 11/06/2015 11:54 PM, Jon Mason wrote:
> >> On Fri, Nov 06, 2015 at 10:42:41PM +0100, Hauke Mehrtens wrote:
> >>> On 11/06/2015 10:11 PM, Kapil Hali wrote:
>  From: Jon Mason 
> 
>  Add SMP support for Broadcom's 4708 SoCs.
> 
>  Signed-off-by: Jon Mason 
>  Acked-by: Hauke Mehrtens 
>  Tested-by: Hauke Mehrtens 
>  Signed-off-by: Kapil Hali 
> >>>
> >>> I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.
> >>>
>  ---
>   arch/arm/boot/dts/bcm4708.dtsi | 2 ++
>   arch/arm/mach-bcm/Kconfig  | 1 +
>   arch/arm/mach-bcm/Makefile | 3 +++
>   3 files changed, 6 insertions(+)
> 
> >>>
> >>> ...
> >>>
>  --- a/arch/arm/mach-bcm/Kconfig
>  +++ b/arch/arm/mach-bcm/Kconfig
>  @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
>   config ARCH_BCM_5301X
>   bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
>   select ARCH_BCM_IPROC
> >>>
> >>> You activated ARM_ERRATA_764369 for NSP is this not needed for NS?
> >>
> >> I'm not certain the CPU version, and without that it is difficult to
> >> know what errata's are present in the underlying hardware.  My guess
> >> is that all present in NSP are present in NS (for UP and SMP).  This
> >> would put it as:
> >> select ARM_ERRATA_754322
> >> select ARM_ERRATA_775420
> >> select ARM_ERRATA_764369 if SMP
> >>
> >> Would you like me to have them added?
> >>
> > 
> > I will send a separate patch adding all the workarounds for erratas in
> > the CPU core and the cache controller.
> > 
> > Hauke
> > 
> > 
> Hi,
> 
> BCM4708 uses a Cortex-A9 rev r3p0 and a L2C-310 rev r3p2. For this CPU
> and cache controller the same workaround are needed as for NSP, if you
> will resend this patch, please add all of them.

Agreed.  Kapil or I will mod the patch.

Thanks,
Jon

> 
> Hauke
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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-06 Thread Hauke Mehrtens 
On 11/07/2015 12:27 AM, Hauke Mehrtens wrote:
> On 11/06/2015 11:54 PM, Jon Mason wrote:
>> On Fri, Nov 06, 2015 at 10:42:41PM +0100, Hauke Mehrtens wrote:
>>> On 11/06/2015 10:11 PM, Kapil Hali wrote:
 From: Jon Mason 

 Add SMP support for Broadcom's 4708 SoCs.

 Signed-off-by: Jon Mason 
 Acked-by: Hauke Mehrtens 
 Tested-by: Hauke Mehrtens 
 Signed-off-by: Kapil Hali 
>>>
>>> I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.
>>>
 ---
  arch/arm/boot/dts/bcm4708.dtsi | 2 ++
  arch/arm/mach-bcm/Kconfig  | 1 +
  arch/arm/mach-bcm/Makefile | 3 +++
  3 files changed, 6 insertions(+)

>>>
>>> ...
>>>
 --- a/arch/arm/mach-bcm/Kconfig
 +++ b/arch/arm/mach-bcm/Kconfig
 @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
  config ARCH_BCM_5301X
bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
select ARCH_BCM_IPROC
>>>
>>> You activated ARM_ERRATA_764369 for NSP is this not needed for NS?
>>
>> I'm not certain the CPU version, and without that it is difficult to
>> know what errata's are present in the underlying hardware.  My guess
>> is that all present in NSP are present in NS (for UP and SMP).  This
>> would put it as:
>> select ARM_ERRATA_754322
>> select ARM_ERRATA_775420
>> select ARM_ERRATA_764369 if SMP
>>
>> Would you like me to have them added?
>>
> 
> I will send a separate patch adding all the workarounds for erratas in
> the CPU core and the cache controller.
> 
> Hauke
> 
> 
Hi,

BCM4708 uses a Cortex-A9 rev r3p0 and a L2C-310 rev r3p2. For this CPU
and cache controller the same workaround are needed as for NSP, if you
will resend this patch, please add all of them.

Hauke
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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-06 Thread Hauke Mehrtens 
On 11/06/2015 11:54 PM, Jon Mason wrote:
> On Fri, Nov 06, 2015 at 10:42:41PM +0100, Hauke Mehrtens wrote:
>> On 11/06/2015 10:11 PM, Kapil Hali wrote:
>>> From: Jon Mason 
>>>
>>> Add SMP support for Broadcom's 4708 SoCs.
>>>
>>> Signed-off-by: Jon Mason 
>>> Acked-by: Hauke Mehrtens 
>>> Tested-by: Hauke Mehrtens 
>>> Signed-off-by: Kapil Hali 
>>
>> I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.
>>
>>> ---
>>>  arch/arm/boot/dts/bcm4708.dtsi | 2 ++
>>>  arch/arm/mach-bcm/Kconfig  | 1 +
>>>  arch/arm/mach-bcm/Makefile | 3 +++
>>>  3 files changed, 6 insertions(+)
>>>
>>
>> ...
>>
>>> --- a/arch/arm/mach-bcm/Kconfig
>>> +++ b/arch/arm/mach-bcm/Kconfig
>>> @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
>>>  config ARCH_BCM_5301X
>>> bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
>>> select ARCH_BCM_IPROC
>>
>> You activated ARM_ERRATA_764369 for NSP is this not needed for NS?
> 
> I'm not certain the CPU version, and without that it is difficult to
> know what errata's are present in the underlying hardware.  My guess
> is that all present in NSP are present in NS (for UP and SMP).  This
> would put it as:
> select ARM_ERRATA_754322
> select ARM_ERRATA_775420
> select ARM_ERRATA_764369 if SMP
> 
> Would you like me to have them added?
> 

I will send a separate patch adding all the workarounds for erratas in
the CPU core and the cache controller.

Hauke


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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-06 Thread Scott Branden 

Hi Hauke,

On 15-11-06 01:42 PM, Hauke Mehrtens wrote:

On 11/06/2015 10:11 PM, Kapil Hali wrote:

From: Jon Mason 

Add SMP support for Broadcom's 4708 SoCs.

Signed-off-by: Jon Mason 
Acked-by: Hauke Mehrtens 
Tested-by: Hauke Mehrtens 
Signed-off-by: Kapil Hali 


I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.


---
  arch/arm/boot/dts/bcm4708.dtsi | 2 ++
  arch/arm/mach-bcm/Kconfig  | 1 +
  arch/arm/mach-bcm/Makefile | 3 +++
  3 files changed, 6 insertions(+)



...


--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -54,6 +54,7 @@ config ARCH_BCM_NSP
  config ARCH_BCM_5301X
bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
select ARCH_BCM_IPROC


You activated ARM_ERRATA_764369 for NSP is this not needed for NS?

You would have to read the ARM CPU register and then compare to ARM 
Errata to see whether the Errata affects NS or not.



+   select HAVE_SMP
help
  Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores.



...



Regards,
Scott

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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-06 Thread Jon Mason 
On Fri, Nov 06, 2015 at 10:42:41PM +0100, Hauke Mehrtens wrote:
> On 11/06/2015 10:11 PM, Kapil Hali wrote:
> > From: Jon Mason 
> > 
> > Add SMP support for Broadcom's 4708 SoCs.
> > 
> > Signed-off-by: Jon Mason 
> > Acked-by: Hauke Mehrtens 
> > Tested-by: Hauke Mehrtens 
> > Signed-off-by: Kapil Hali 
> 
> I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.
> 
> > ---
> >  arch/arm/boot/dts/bcm4708.dtsi | 2 ++
> >  arch/arm/mach-bcm/Kconfig  | 1 +
> >  arch/arm/mach-bcm/Makefile | 3 +++
> >  3 files changed, 6 insertions(+)
> > 
> 
> ...
> 
> > --- a/arch/arm/mach-bcm/Kconfig
> > +++ b/arch/arm/mach-bcm/Kconfig
> > @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
> >  config ARCH_BCM_5301X
> > bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
> > select ARCH_BCM_IPROC
> 
> You activated ARM_ERRATA_764369 for NSP is this not needed for NS?

I'm not certain the CPU version, and without that it is difficult to
know what errata's are present in the underlying hardware.  My guess
is that all present in NSP are present in NS (for UP and SMP).  This
would put it as:
select ARM_ERRATA_754322
select ARM_ERRATA_775420
select ARM_ERRATA_764369 if SMP

Would you like me to have them added?

Thanks,
Jon

> 
> 
> > +   select HAVE_SMP
> > help
> >   Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores.
> >  
> 
> ...
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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-06 Thread Hauke Mehrtens 
On 11/06/2015 10:11 PM, Kapil Hali wrote:
> From: Jon Mason 
> 
> Add SMP support for Broadcom's 4708 SoCs.
> 
> Signed-off-by: Jon Mason 
> Acked-by: Hauke Mehrtens 
> Tested-by: Hauke Mehrtens 
> Signed-off-by: Kapil Hali 

I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.

> ---
>  arch/arm/boot/dts/bcm4708.dtsi | 2 ++
>  arch/arm/mach-bcm/Kconfig  | 1 +
>  arch/arm/mach-bcm/Makefile | 3 +++
>  3 files changed, 6 insertions(+)
> 

...

> --- a/arch/arm/mach-bcm/Kconfig
> +++ b/arch/arm/mach-bcm/Kconfig
> @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
>  config ARCH_BCM_5301X
>   bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
>   select ARCH_BCM_IPROC

You activated ARM_ERRATA_764369 for NSP is this not needed for NS?


> + select HAVE_SMP
>   help
> Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores.
>  

...
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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-06 Thread Hauke Mehrtens 
On 11/07/2015 12:27 AM, Hauke Mehrtens wrote:
> On 11/06/2015 11:54 PM, Jon Mason wrote:
>> On Fri, Nov 06, 2015 at 10:42:41PM +0100, Hauke Mehrtens wrote:
>>> On 11/06/2015 10:11 PM, Kapil Hali wrote:
 From: Jon Mason 

 Add SMP support for Broadcom's 4708 SoCs.

 Signed-off-by: Jon Mason 
 Acked-by: Hauke Mehrtens 
 Tested-by: Hauke Mehrtens 
 Signed-off-by: Kapil Hali 
>>>
>>> I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.
>>>
 ---
  arch/arm/boot/dts/bcm4708.dtsi | 2 ++
  arch/arm/mach-bcm/Kconfig  | 1 +
  arch/arm/mach-bcm/Makefile | 3 +++
  3 files changed, 6 insertions(+)

>>>
>>> ...
>>>
 --- a/arch/arm/mach-bcm/Kconfig
 +++ b/arch/arm/mach-bcm/Kconfig
 @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
  config ARCH_BCM_5301X
bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
select ARCH_BCM_IPROC
>>>
>>> You activated ARM_ERRATA_764369 for NSP is this not needed for NS?
>>
>> I'm not certain the CPU version, and without that it is difficult to
>> know what errata's are present in the underlying hardware.  My guess
>> is that all present in NSP are present in NS (for UP and SMP).  This
>> would put it as:
>> select ARM_ERRATA_754322
>> select ARM_ERRATA_775420
>> select ARM_ERRATA_764369 if SMP
>>
>> Would you like me to have them added?
>>
> 
> I will send a separate patch adding all the workarounds for erratas in
> the CPU core and the cache controller.
> 
> Hauke
> 
> 
Hi,

BCM4708 uses a Cortex-A9 rev r3p0 and a L2C-310 rev r3p2. For this CPU
and cache controller the same workaround are needed as for NSP, if you
will resend this patch, please add all of them.

Hauke
--
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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-06 Thread Hauke Mehrtens 
On 11/06/2015 11:54 PM, Jon Mason wrote:
> On Fri, Nov 06, 2015 at 10:42:41PM +0100, Hauke Mehrtens wrote:
>> On 11/06/2015 10:11 PM, Kapil Hali wrote:
>>> From: Jon Mason 
>>>
>>> Add SMP support for Broadcom's 4708 SoCs.
>>>
>>> Signed-off-by: Jon Mason 
>>> Acked-by: Hauke Mehrtens 
>>> Tested-by: Hauke Mehrtens 
>>> Signed-off-by: Kapil Hali 
>>
>> I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.
>>
>>> ---
>>>  arch/arm/boot/dts/bcm4708.dtsi | 2 ++
>>>  arch/arm/mach-bcm/Kconfig  | 1 +
>>>  arch/arm/mach-bcm/Makefile | 3 +++
>>>  3 files changed, 6 insertions(+)
>>>
>>
>> ...
>>
>>> --- a/arch/arm/mach-bcm/Kconfig
>>> +++ b/arch/arm/mach-bcm/Kconfig
>>> @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
>>>  config ARCH_BCM_5301X
>>> bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
>>> select ARCH_BCM_IPROC
>>
>> You activated ARM_ERRATA_764369 for NSP is this not needed for NS?
> 
> I'm not certain the CPU version, and without that it is difficult to
> know what errata's are present in the underlying hardware.  My guess
> is that all present in NSP are present in NS (for UP and SMP).  This
> would put it as:
> select ARM_ERRATA_754322
> select ARM_ERRATA_775420
> select ARM_ERRATA_764369 if SMP
> 
> Would you like me to have them added?
> 

I will send a separate patch adding all the workarounds for erratas in
the CPU core and the cache controller.

Hauke


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-06 Thread Jon Mason 
On Fri, Nov 06, 2015 at 10:42:41PM +0100, Hauke Mehrtens wrote:
> On 11/06/2015 10:11 PM, Kapil Hali wrote:
> > From: Jon Mason 
> > 
> > Add SMP support for Broadcom's 4708 SoCs.
> > 
> > Signed-off-by: Jon Mason 
> > Acked-by: Hauke Mehrtens 
> > Tested-by: Hauke Mehrtens 
> > Signed-off-by: Kapil Hali 
> 
> I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.
> 
> > ---
> >  arch/arm/boot/dts/bcm4708.dtsi | 2 ++
> >  arch/arm/mach-bcm/Kconfig  | 1 +
> >  arch/arm/mach-bcm/Makefile | 3 +++
> >  3 files changed, 6 insertions(+)
> > 
> 
> ...
> 
> > --- a/arch/arm/mach-bcm/Kconfig
> > +++ b/arch/arm/mach-bcm/Kconfig
> > @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
> >  config ARCH_BCM_5301X
> > bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
> > select ARCH_BCM_IPROC
> 
> You activated ARM_ERRATA_764369 for NSP is this not needed for NS?

I'm not certain the CPU version, and without that it is difficult to
know what errata's are present in the underlying hardware.  My guess
is that all present in NSP are present in NS (for UP and SMP).  This
would put it as:
select ARM_ERRATA_754322
select ARM_ERRATA_775420
select ARM_ERRATA_764369 if SMP

Would you like me to have them added?

Thanks,
Jon

> 
> 
> > +   select HAVE_SMP
> > help
> >   Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores.
> >  
> 
> ...
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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-06 Thread Scott Branden 

Hi Hauke,

On 15-11-06 01:42 PM, Hauke Mehrtens wrote:

On 11/06/2015 10:11 PM, Kapil Hali wrote:

From: Jon Mason 

Add SMP support for Broadcom's 4708 SoCs.

Signed-off-by: Jon Mason 
Acked-by: Hauke Mehrtens 
Tested-by: Hauke Mehrtens 
Signed-off-by: Kapil Hali 


I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.


---
  arch/arm/boot/dts/bcm4708.dtsi | 2 ++
  arch/arm/mach-bcm/Kconfig  | 1 +
  arch/arm/mach-bcm/Makefile | 3 +++
  3 files changed, 6 insertions(+)



...


--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -54,6 +54,7 @@ config ARCH_BCM_NSP
  config ARCH_BCM_5301X
bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
select ARCH_BCM_IPROC


You activated ARM_ERRATA_764369 for NSP is this not needed for NS?

You would have to read the ARM CPU register and then compare to ARM 
Errata to see whether the Errata affects NS or not.



+   select HAVE_SMP
help
  Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores.



...



Regards,
Scott

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Re: [PATCH v3 4/4] ARM: BCM: Add SMP support for Broadcom 4708

2015-11-06 Thread Hauke Mehrtens 
On 11/06/2015 10:11 PM, Kapil Hali wrote:
> From: Jon Mason 
> 
> Add SMP support for Broadcom's 4708 SoCs.
> 
> Signed-off-by: Jon Mason 
> Acked-by: Hauke Mehrtens 
> Tested-by: Hauke Mehrtens 
> Signed-off-by: Kapil Hali 

I tested this on a Netgear R6250 V1 (BCM4708) and SMP worked.

> ---
>  arch/arm/boot/dts/bcm4708.dtsi | 2 ++
>  arch/arm/mach-bcm/Kconfig  | 1 +
>  arch/arm/mach-bcm/Makefile | 3 +++
>  3 files changed, 6 insertions(+)
> 

...

> --- a/arch/arm/mach-bcm/Kconfig
> +++ b/arch/arm/mach-bcm/Kconfig
> @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
>  config ARCH_BCM_5301X
>   bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
>   select ARCH_BCM_IPROC

You activated ARM_ERRATA_764369 for NSP is this not needed for NS?


> + select HAVE_SMP
>   help
> Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores.
>  

...
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