linux-kernel - Re: [PATCH v2 2/2] arm64: tlb: Use the TLBI RANGE feature in arm64

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Message-ID: <7237888d-2168-cd8b-c83d-c8e54871793d@nvidia.com>
Date:   Mon, 13 Jul 2020 15:44:16 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     Zhenyu Ye <yezhenyu2@...wei.com>, <catalin.marinas@....com>,
        <will@...nel.org>, <suzuki.poulose@....com>, <maz@...nel.org>,
        <steven.price@....com>, <guohanjun@...wei.com>, <olof@...om.net>
CC:     <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>,
        linux-tegra <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] arm64: tlb: Use the TLBI RANGE feature in arm64


On 13/07/2020 15:39, Zhenyu Ye wrote:
> Hi Jon,
> 
> On 2020/7/13 22:27, Jon Hunter wrote:
>> After this change I am seeing the following build errors ...
>>
>> /tmp/cckzq3FT.s: Assembler messages:
>> /tmp/cckzq3FT.s:854: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x7'
>> /tmp/cckzq3FT.s:870: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x7'
>> /tmp/cckzq3FT.s:1095: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x7'
>> /tmp/cckzq3FT.s:1111: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x7'
>> /tmp/cckzq3FT.s:1964: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x7'
>> /tmp/cckzq3FT.s:1980: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x7'
>> /tmp/cckzq3FT.s:2286: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x7'
>> /tmp/cckzq3FT.s:2302: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x7'
>> /tmp/cckzq3FT.s:4833: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x6'
>> /tmp/cckzq3FT.s:4849: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x6'
>> /tmp/cckzq3FT.s:5090: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x6'
>> /tmp/cckzq3FT.s:5106: Error: unknown or missing operation name at operand 1 -- `tlbi rvae1is,x6'
>> /tmp/cckzq3FT.s:874: Error: attempt to move .org backwards
>> /tmp/cckzq3FT.s:1115: Error: attempt to move .org backwards
>> /tmp/cckzq3FT.s:1984: Error: attempt to move .org backwards
>> /tmp/cckzq3FT.s:2306: Error: attempt to move .org backwards
>> /tmp/cckzq3FT.s:4853: Error: attempt to move .org backwards
>> /tmp/cckzq3FT.s:5110: Error: attempt to move .org backwards
>> scripts/Makefile.build:280: recipe for target 'arch/arm64/mm/hugetlbpage.o' failed
>> make[3]: *** [arch/arm64/mm/hugetlbpage.o] Error 1
>> scripts/Makefile.build:497: recipe for target 'arch/arm64/mm' failed
>> make[2]: *** [arch/arm64/mm] Error 2
>>
>> Cheers
>> Jon
>>
> 
> The code must be built with binutils >= 2.30.
> Maybe I should add  a check on whether binutils supports ARMv8.4-a instructions...

Yes I believe so.

Cheers
Jon

-- 
nvpublic