linux-kernel - Re: [PATCH v2 2/6] arm64: Add level-hinted TLB invalidation helper

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Message-ID: <3852291c-37cf-39b6-564d-8b4f50f9d86e@huawei.com>
Date:   Mon, 25 May 2020 14:54:51 +0800
From:   Zhenyu Ye <yezhenyu2@...wei.com>
To:     Catalin Marinas <catalin.marinas@....com>
CC:     <peterz@...radead.org>, <mark.rutland@....com>, <will@...nel.org>,
        <aneesh.kumar@...ux.ibm.com>, <akpm@...ux-foundation.org>,
        <npiggin@...il.com>, <arnd@...db.de>, <rostedt@...dmis.org>,
        <maz@...nel.org>, <suzuki.poulose@....com>, <tglx@...utronix.de>,
        <yuzhao@...gle.com>, <Dave.Martin@....com>, <steven.price@....com>,
        <broonie@...nel.org>, <guohanjun@...wei.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-arch@...r.kernel.org>,
        <linux-mm@...ck.org>, <arm@...nel.org>, <xiexiangyou@...wei.com>,
        <prime.zeng@...ilicon.com>, <zhangshaokun@...ilicon.com>,
        <kuhn.chenqun@...wei.com>
Subject: Re: [PATCH v2 2/6] arm64: Add level-hinted TLB invalidation helper

On 2020/5/22 23:50, Catalin Marinas wrote:
> On Thu, Apr 23, 2020 at 09:56:52PM +0800, Zhenyu Ye wrote:
>> diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
>> index bc3949064725..5f9f189bc6d2 100644
>> --- a/arch/arm64/include/asm/tlbflush.h
>> +++ b/arch/arm64/include/asm/tlbflush.h
>> @@ -10,6 +10,7 @@
>>  
>>  #ifndef __ASSEMBLY__
>>  
>> +#include <linux/bitfield.h>
>>  #include <linux/mm_types.h>
>>  #include <linux/sched.h>
>>  #include <asm/cputype.h>
>> @@ -59,6 +60,35 @@
>>  		__ta;						\
>>  	})
>>  
>> +#define TLBI_TTL_MASK	GENMASK_ULL(47, 44)
>> +
>> +#define __tlbi_level(op, addr, level)					\
>> +	do {								\
> 
> Nitpick: move "do {" on the same line as __tlbi_level() to reduce the
> indentation levels of the whole block.
> 
> Reviewed-by: Catalin Marinas <catalin.marinas@....com>
> 

OK.