From: Guo Ren <guoren@kernel.org>
To: Julien Grall <julien.grall@arm.com>
Cc: julien.thierry@arm.com, aou@eecs.berkeley.edu,
james.morse@arm.com, suzuki.poulose@arm.com,
Marc Zyngier <marc.zyngier@arm.com>,
catalin.marinas@arm.com, Anup Patel <anup.Patel@wdc.com>,
will.deacon@arm.com, linux-kernel@vger.kernel.org,
rppt@linux.ibm.com, hch@infradead.org, Atish.Patra@wdc.com,
Palmer Dabbelt <palmer@sifive.com>,
gary@garyguo.net, paul.walmsley@sifive.com,
christoffer.dall@arm.com, linux-riscv@lists.infradead.org,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH RFC 11/14] arm64: Move the ASID allocator code in a separate file
Date: Wed, 19 Jun 2019 19:51:03 +0800 [thread overview]
Message-ID: <CAJF2gTStSR7Jmu7=HaO5Wxz=Zn8A5-RD8ktori3oKEhM9vozAA@mail.gmail.com> (raw)
In-Reply-To: <c871a5ae-914f-a8bb-9474-1dcfec5d45bf@arm.com>
On Wed, Jun 19, 2019 at 4:54 PM Julien Grall <julien.grall@arm.com> wrote:
>
>
>
> On 6/19/19 9:07 AM, Guo Ren wrote:
> > Hi Julien,
>
> Hi,
>
> >
> > You forgot CCing C-SKY folks :P
>
> I wasn't aware you could be interested :).
>
> >
> > Move arm asid allocator code in a generic one is a agood idea, I've
> > made a patchset for C-SKY and test is on processing, See:
> > https://lore.kernel.org/linux-csky/1560930553-26502-1-git-send-email-guoren@kernel.org/
> >
> > If you plan to seperate it into generic one, I could co-work with you.
>
> Was the ASID allocator work out of box on C-Sky?
Almost done, but one question:
arm64 remove the code in switch_mm:
cpumask_clear_cpu(cpu, mm_cpumask(prev));
cpumask_set_cpu(cpu, mm_cpumask(next));
Why? Although arm64 cache operations could affect all harts with CTC
method of interconnect, I think we should
keep these code for primitive integrity in linux. Because cpu_bitmap
is in mm_struct instead of mm->context.
In current csky's patches I've also removed the codes the same as
arm64, but I'll add it back at next version.
> If so, I can easily move the code in a generic place (maybe lib/asid.c).
I think it's OK.
Best Regards
Guo Ren
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next prev parent reply other threads:[~2019-06-19 11:51 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190321163623.20219-1-julien.grall@arm.com>
[not found] ` <20190321163623.20219-12-julien.grall@arm.com>
2019-06-05 16:56 ` [PATCH RFC 11/14] arm64: Move the ASID allocator code in a separate file Julien Grall
2019-06-05 20:41 ` Palmer Dabbelt
2019-06-11 1:56 ` Gary Guo
2019-06-19 8:07 ` Guo Ren
2019-06-19 8:54 ` Julien Grall
2019-06-19 9:12 ` Will Deacon
2019-06-19 12:18 ` Guo Ren
2019-06-19 12:39 ` Will Deacon
2019-06-20 9:33 ` Guo Ren
2019-06-24 10:40 ` Will Deacon
2019-06-25 7:25 ` Palmer Dabbelt
2019-09-07 23:52 ` Guo Ren
2019-09-12 14:02 ` Will Deacon
2019-09-12 14:59 ` Guo Ren
[not found] ` <CAJF2gTTsHCsSpf1ncVb=ZJS2d=r+AdDi2=5z-REVS=uUg9138A@mail.gmail.com>
2019-09-14 8:49 ` Guo Ren
2019-09-16 12:57 ` Jean-Philippe Brucker
2019-09-19 13:07 ` Guo Ren
2019-09-19 15:18 ` Jean-Philippe Brucker
2019-09-20 0:07 ` Guo Ren
2019-09-20 7:18 ` Jean-Philippe Brucker
2019-09-14 14:01 ` Palmer Dabbelt
2019-09-15 5:03 ` Anup Patel
2019-09-16 18:18 ` Will Deacon
2019-09-16 18:28 ` Palmer Dabbelt
2019-09-17 3:42 ` Anup Patel
2019-09-19 13:36 ` Guo Ren
2019-06-19 11:51 ` Guo Ren [this message]
2019-06-19 12:52 ` Julien Grall
2019-06-21 14:16 ` Catalin Marinas
2019-06-23 16:35 ` Guo Ren
2019-06-24 10:22 ` Will Deacon
2019-06-27 9:41 ` qi.fuli
2019-06-27 10:26 ` Will Deacon
2019-06-24 15:38 ` Catalin Marinas
2019-06-30 4:29 ` Guo Ren
2019-07-01 9:17 ` Catalin Marinas
2019-07-16 3:31 ` Guo Ren
2019-07-22 16:38 ` Catalin Marinas
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