RE: [PATCH v2 08/11] ARC: [plat-eznps] spinlock aware for MTM

From	Noam Camus <noamca@mellanox.com>
Newsgroups	linux.kernel
Subject	RE: [PATCH v2 08/11] ARC: [plat-eznps] spinlock aware for MTM
Date	2017-06-04 08:20 +0200
Message-ID	<tOx3k-Ty-13@gated-at.bofh.it> (permalink)
References	<tM0lb-6QK-3@gated-at.bofh.it> <tM0lc-6QK-7@gated-at.bofh.it> <tNZEm-4Mu-3@gated-at.bofh.it>
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> From: Vineet Gupta [mailto:Vineet.Gupta1@synopsys.com] 
> Sent: Friday, June 2, 2017 21:36 PM
...

>>   arch/arc/include/asm/spinlock.h |    6 ++++++
>>   1 files changed, 6 insertions(+), 0 deletions(-)
>> 
>> diff --git a/arch/arc/include/asm/spinlock.h 
>> b/arch/arc/include/asm/spinlock.h index 233d5ff..0a54ce7 100644
>> --- a/arch/arc/include/asm/spinlock.h
>> +++ b/arch/arc/include/asm/spinlock.h
>> @@ -252,9 +252,15 @@ static inline void arch_spin_lock(arch_spinlock_t 
>> *lock)
>>   
>>   	__asm__ __volatile__(
>>   	"1:	ex  %0, [%1]		\n"
>> +#ifdef CONFIG_EZNPS_MTM_EXT
>> +	"	.word %3		\n"
>> +#endif
>>   	"	breq  %0, %2, 1b	\n"
>>   	: "+&r" (val)
>>   	: "r"(&(lock->slock)), "ir"(__ARCH_SPIN_LOCK_LOCKED__)
>> +#ifdef CONFIG_EZNPS_MTM_EXT
>> +	, "i"(CTOP_INST_SCHD_RW)
>> +#endif
>>   	: "memory");
>>   
>>   	/*
>> 

>This is ugly - I will fix it up here to create an NPS version of arch_spin_lock !
TNX

-Noam

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[PATCH v2 08/11] ARC: [plat-eznps] spinlock aware for MTM Noam Camus <noamca@mellanox.com> - 2017-05-28 09:00 +0200
  Re: [PATCH v2 08/11] ARC: [plat-eznps] spinlock aware for MTM Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-06-02 20:40 +0200
    RE: [PATCH v2 08/11] ARC: [plat-eznps] spinlock aware for MTM Noam Camus <noamca@mellanox.com> - 2017-06-04 08:20 +0200

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