From: Balbir Singh <bsingharora@gmail.com>
To: Michael Neuling <mikey@neuling.org>,
Oliver O'Halloran <oohall@gmail.com>,
linuxppc-dev@lists.ozlabs.org
Cc: Jack Miller <jack@codezen.org>
Subject: Re: [PATCH 1/2] powerpc/timer - large decrementer support
Date: Fri, 3 Jun 2016 12:01:56 +1000 [thread overview]
Message-ID: <f20c99aa-7648-2b8f-489c-96b53bd3a9c1@gmail.com> (raw)
In-Reply-To: <1464758911.30958.113.camel@neuling.org>
On 01/06/16 15:28, Michael Neuling wrote:
> On Tue, 2016-05-31 at 17:16 +1000, Oliver O'Halloran wrote:
>> POWER ISA v3 adds large decrementer (LD) mode of operation which
>> increases
>> the size of the decrementer register from 32 bits to an implementation
>> defined with of up to 64 bits.
>>
>> This patch adds support for the LD on processors with the
>> CPU_FTR_ARCH_300
>> cpu feature flag set. For CPUs with this feature LD mode is enabled when
>> when the ibm,dec-bits devicetree property is supplied for the boot CPU.
>> The
>> decrementer value is a signed quantity (with negative values indicating a
>> pending exception) and this property is required to find the maximum
>> positive decrementer value. If this property is not supplied then the
>> traditional decrementer width of 32 bits is assumed and LD mode is
>> disabled.
>>
>> This patch was based on initial work by Jack Miller.
>>
>> Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
>> Cc: Michael Neuling <mikey@neuling.org>
>
> Acked-by: Michael Neuling <mikey@neuling.org>
>
>> Cc: Balbir Singh <bsingharora@gmail.com>
>> Cc: Jack Miller <jack@codezen.org>
I had reviewed a previous post of this patchset
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
next prev parent reply other threads:[~2016-06-03 2:02 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-10 4:57 [PATCH v3 1/2] powerpc/timer - large decrementer support Oliver O'Halloran
2016-05-10 4:57 ` [PATCH v3 2/2] KVM: PPC: hypervisor " Oliver O'Halloran
2016-05-11 5:05 ` [PATCH v3 1/2] powerpc/timer - " Balbir Singh
2016-05-31 6:25 ` Michael Neuling
2016-05-31 7:05 ` oliver
2016-05-31 7:16 ` [PATCH " Oliver O'Halloran
2016-05-31 7:16 ` [PATCH 2/2] KVM: PPC: hypervisor " Oliver O'Halloran
2016-06-01 6:23 ` Michael Neuling
2016-06-02 21:46 ` Benjamin Herrenschmidt
2016-06-07 13:04 ` Michael Ellerman
2016-06-22 7:30 ` oliver
2016-06-01 5:28 ` [PATCH 1/2] powerpc/timer - " Michael Neuling
2016-06-03 2:01 ` Balbir Singh [this message]
-- strict thread matches above, loose matches on Subject: below --
2016-04-12 4:38 Oliver O'Halloran
2016-04-12 7:19 ` Balbir Singh
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