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[PATCH] arm64: kconfig: allow support for memory failure handling

Started byTyler Baicar <tbaicar@codeaurora.org>
First post2017-02-01 22:40 +0100
Last post2017-02-07 13:10 +0100
Articles 4 — 3 participants

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  [PATCH] arm64: kconfig: allow support for memory failure handling Tyler Baicar <tbaicar@codeaurora.org> - 2017-02-01 22:40 +0100
    Re: [PATCH] arm64: kconfig: allow support for memory failure handling Punit Agrawal <punit.agrawal@arm.com> - 2017-02-03 17:30 +0100
      Re: [PATCH] arm64: kconfig: allow support for memory failure handling "Baicar, Tyler" <tbaicar@codeaurora.org> - 2017-02-06 23:30 +0100
        Re: [PATCH] arm64: kconfig: allow support for memory failure handling Punit Agrawal <punit.agrawal@arm.com> - 2017-02-07 13:10 +0100

#1571993 — [PATCH] arm64: kconfig: allow support for memory failure handling

FromTyler Baicar <tbaicar@codeaurora.org>
Date2017-02-01 22:40 +0100
Subject[PATCH] arm64: kconfig: allow support for memory failure handling
Message-ID<t6aNb-37z-7@gated-at.bofh.it>
From: "Jonathan (Zhixiong) Zhang" <zjzhang@codeaurora.org>

If ACPI_APEI and MEMORY_FAILURE is configured, select
ACPI_APEI_MEMORY_FAILURE. This enables memory failure recovery
when such memory failure is reported through ACPI APEI. APEI
(ACPI Platform Error Interfaces) provides a means for the
platform to convey error information to the kernel.

Declare ARCH_SUPPORTS_MEMORY_FAILURE, as arm64 does support
memory failure recovery attempt.

Signed-off-by: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org>
Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
---
 arch/arm64/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index f92778d..4cd12a0 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -15,6 +15,8 @@ config ARM64
 	select ARCH_HAS_SG_CHAIN
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_USE_CMPXCHG_LOCKREF
+	select ACPI_APEI_MEMORY_FAILURE if ACPI_APEI && MEMORY_FAILURE
+	select ARCH_SUPPORTS_MEMORY_FAILURE
 	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_SUPPORTS_NUMA_BALANCING
 	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
-- 
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.

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#1573241

FromPunit Agrawal <punit.agrawal@arm.com>
Date2017-02-03 17:30 +0100
Message-ID<t6OUi-442-17@gated-at.bofh.it>
In reply to#1571993
Tyler Baicar <tbaicar@codeaurora.org> writes:

> From: "Jonathan (Zhixiong) Zhang" <zjzhang@codeaurora.org>
>
> If ACPI_APEI and MEMORY_FAILURE is configured, select
> ACPI_APEI_MEMORY_FAILURE. This enables memory failure recovery
> when such memory failure is reported through ACPI APEI. APEI
> (ACPI Platform Error Interfaces) provides a means for the
> platform to convey error information to the kernel.
>
> Declare ARCH_SUPPORTS_MEMORY_FAILURE, as arm64 does support
> memory failure recovery attempt.
>
> Signed-off-by: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org>
> Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
> ---
>  arch/arm64/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index f92778d..4cd12a0 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -15,6 +15,8 @@ config ARM64
>  	select ARCH_HAS_SG_CHAIN
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>  	select ARCH_USE_CMPXCHG_LOCKREF
> +	select ACPI_APEI_MEMORY_FAILURE if ACPI_APEI && MEMORY_FAILURE
> +	select ARCH_SUPPORTS_MEMORY_FAILURE

Although enabling support for memory failure handling makes sense in the
architecture config, it feels out of place to select
ACPI_APEI_MEMORY_FAILURE here.

Maybe key it off of CONFIG_APEI?

Thanks,
Punit

>  	select ARCH_SUPPORTS_ATOMIC_RMW
>  	select ARCH_SUPPORTS_NUMA_BALANCING
>  	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION

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#1575208

From"Baicar, Tyler" <tbaicar@codeaurora.org>
Date2017-02-06 23:30 +0100
Message-ID<t7ZXj-2yL-7@gated-at.bofh.it>
In reply to#1573241
Hello Punit,


On 2/3/2017 9:27 AM, Punit Agrawal wrote:
> Tyler Baicar <tbaicar@codeaurora.org> writes:
>
>> From: "Jonathan (Zhixiong) Zhang" <zjzhang@codeaurora.org>
>>
>> If ACPI_APEI and MEMORY_FAILURE is configured, select
>> ACPI_APEI_MEMORY_FAILURE. This enables memory failure recovery
>> when such memory failure is reported through ACPI APEI. APEI
>> (ACPI Platform Error Interfaces) provides a means for the
>> platform to convey error information to the kernel.
>>
>> Declare ARCH_SUPPORTS_MEMORY_FAILURE, as arm64 does support
>> memory failure recovery attempt.
>>
>> Signed-off-by: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org>
>> Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
>> ---
>>   arch/arm64/Kconfig | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
>> index f92778d..4cd12a0 100644
>> --- a/arch/arm64/Kconfig
>> +++ b/arch/arm64/Kconfig
>> @@ -15,6 +15,8 @@ config ARM64
>>   	select ARCH_HAS_SG_CHAIN
>>   	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>>   	select ARCH_USE_CMPXCHG_LOCKREF
>> +	select ACPI_APEI_MEMORY_FAILURE if ACPI_APEI && MEMORY_FAILURE
>> +	select ARCH_SUPPORTS_MEMORY_FAILURE
> Although enabling support for memory failure handling makes sense in the
> architecture config, it feels out of place to select
> ACPI_APEI_MEMORY_FAILURE here.
>
> Maybe key it off of CONFIG_APEI?
Yes, I can move it there.

config ACPI_APEI
         bool "ACPI Platform Error Interface (APEI)"
         select MISC_FILESYSTEMS
         select PSTORE
         select UEFI_CPER
+        select ACPI_APEI_MEMORY_FAILURE if MEMORY_FAILURE
         depends on HAVE_ACPI_APEI

The ARCH_SUPPORTS_MEMORY_FAILURE should remain in arch/arm64/Kconfig 
though, correct?

Thanks,
Tyler

-- 
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.

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#1575603

FromPunit Agrawal <punit.agrawal@arm.com>
Date2017-02-07 13:10 +0100
Message-ID<t8cKS-2F9-23@gated-at.bofh.it>
In reply to#1575208
"Baicar, Tyler" <tbaicar@codeaurora.org> writes:

> Hello Punit,
>
>
> On 2/3/2017 9:27 AM, Punit Agrawal wrote:
>> Tyler Baicar <tbaicar@codeaurora.org> writes:
>>
>>> From: "Jonathan (Zhixiong) Zhang" <zjzhang@codeaurora.org>
>>>
>>> If ACPI_APEI and MEMORY_FAILURE is configured, select
>>> ACPI_APEI_MEMORY_FAILURE. This enables memory failure recovery
>>> when such memory failure is reported through ACPI APEI. APEI
>>> (ACPI Platform Error Interfaces) provides a means for the
>>> platform to convey error information to the kernel.
>>>
>>> Declare ARCH_SUPPORTS_MEMORY_FAILURE, as arm64 does support
>>> memory failure recovery attempt.
>>>
>>> Signed-off-by: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org>
>>> Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
>>> ---
>>>   arch/arm64/Kconfig | 2 ++
>>>   1 file changed, 2 insertions(+)
>>>
>>> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
>>> index f92778d..4cd12a0 100644
>>> --- a/arch/arm64/Kconfig
>>> +++ b/arch/arm64/Kconfig
>>> @@ -15,6 +15,8 @@ config ARM64
>>>   	select ARCH_HAS_SG_CHAIN
>>>   	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>>>   	select ARCH_USE_CMPXCHG_LOCKREF
>>> +	select ACPI_APEI_MEMORY_FAILURE if ACPI_APEI && MEMORY_FAILURE
>>> +	select ARCH_SUPPORTS_MEMORY_FAILURE
>> Although enabling support for memory failure handling makes sense in the
>> architecture config, it feels out of place to select
>> ACPI_APEI_MEMORY_FAILURE here.
>>
>> Maybe key it off of CONFIG_APEI?
> Yes, I can move it there.
>
> config ACPI_APEI
>         bool "ACPI Platform Error Interface (APEI)"
>         select MISC_FILESYSTEMS
>         select PSTORE
>         select UEFI_CPER
> +        select ACPI_APEI_MEMORY_FAILURE if MEMORY_FAILURE
>         depends on HAVE_ACPI_APEI
>

That's what I was suggesting - we'll see what the ACPI maintainers think
of the change.

> The ARCH_SUPPORTS_MEMORY_FAILURE should remain in arch/arm64/Kconfig
> though, correct?

Yes, that's right - as that's a feature the architecture is advertising
support for, it should stay in the arm64 Kconfig,

>
> Thanks,
> Tyler

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