From: Catalin Marinas <catalin.marinas@arm.com>
To: Atish Patra <atishp@atishpatra.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>,
David Hildenbrand <david@redhat.com>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Atish Patra <atish.patra@wdc.com>, Zong Li <zong.li@sifive.com>,
linux-riscv <linux-riscv@lists.infradead.org>,
Will Deacon <will@kernel.org>,
linux-arch@vger.kernel.org,
Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>,
Jia He <justin.he@arm.com>, Anup Patel <anup@brainfault.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Steven Price <steven.price@arm.com>,
Greentime Hu <greentime.hu@sifive.com>,
Albert Ou <aou@eecs.berkeley.edu>, Arnd Bergmann <arnd@arndb.de>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"linux-kernel@vger.kernel.org List"
<linux-kernel@vger.kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
Mike Rapoport <rppt@kernel.org>
Subject: Re: [PATCH v4 2/5] arm64, numa: Change the numa init functions name to be generic
Date: Fri, 6 Nov 2020 19:08:48 +0000 [thread overview]
Message-ID: <20201106190847.GA23792@gaia> (raw)
In-Reply-To: <CAOnJCUJo795yX_7am0hdB_JFio3_ZBRHioHNcydhqEouCUynUg@mail.gmail.com>
On Fri, Nov 06, 2020 at 09:33:14AM -0800, Atish Patra wrote:
> On Fri, Nov 6, 2020 at 9:14 AM Catalin Marinas <catalin.marinas@arm.com> wrote:
> > On Mon, Oct 05, 2020 at 05:17:49PM -0700, Atish Patra wrote:
> > > diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
> > > index 7ff800045434..96502ff92af5 100644
> > > --- a/arch/arm64/kernel/acpi_numa.c
> > > +++ b/arch/arm64/kernel/acpi_numa.c
> > > @@ -117,16 +117,3 @@ void __init acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa)
> > >
> > > node_set(node, numa_nodes_parsed);
> > > }
> > > -
> > > -int __init arm64_acpi_numa_init(void)
> > > -{
> > > - int ret;
> > > -
> > > - ret = acpi_numa_init();
> > > - if (ret) {
> > > - pr_info("Failed to initialise from firmware\n");
> > > - return ret;
> > > - }
> > > -
> > > - return srat_disabled() ? -EINVAL : 0;
> > > -}
> >
> > I think it's better if arm64_acpi_numa_init() and arm64_numa_init()
> > remained in the arm64 code. It's not really much code to be shared.
>
> RISC-V will probably support ACPI one day. The idea is to not to do
> exercise again in future.
> Moreover, there will be arch_numa_init which will be used by RISC-V
> and there will be arm64_numa_init
> used by arm64. However, if you feel strongly about it, I am happy to
> move back those two functions to arm64.
I don't have a strong view on this, only if there's a risk at some point
of the implementations diverging (e.g. quirks). We can revisit it if
that happens.
It may be worth swapping patches 1 and 2 so that you don't have an
arm64_* function in the core code after the first patch (more of a
nitpick). Either way, feel free to add my ack on both patches:
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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next prev parent reply other threads:[~2020-11-06 19:09 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-06 0:17 [PATCH v4 0/5] Unify NUMA implementation between ARM64 & RISC-V Atish Patra
2020-10-06 0:17 ` [PATCH v4 1/5] numa: Move numa implementation to common code Atish Patra
2020-10-06 0:17 ` [PATCH v4 2/5] arm64, numa: Change the numa init functions name to be generic Atish Patra
2020-11-06 17:14 ` Catalin Marinas
2020-11-06 17:33 ` Atish Patra
2020-11-06 19:08 ` Catalin Marinas [this message]
2020-11-07 0:53 ` Atish Patra
2020-10-06 0:17 ` [PATCH v4 3/5] riscv: Separate memory init from paging init Atish Patra
2020-10-22 5:37 ` Anup Patel
2020-11-05 17:34 ` Palmer Dabbelt
2020-10-06 0:17 ` [PATCH v4 4/5] riscv: Add support pte_protnone and pmd_protnone if CONFIG_NUMA_BALANCING Atish Patra
2020-10-22 5:38 ` Anup Patel
2020-11-05 17:34 ` Palmer Dabbelt
2020-10-06 0:17 ` [PATCH v4 5/5] riscv: Add numa support for riscv64 platform Atish Patra
2020-10-22 5:40 ` Anup Patel
2020-11-05 17:34 ` Palmer Dabbelt
2020-10-13 20:19 ` [PATCH v4 0/5] Unify NUMA implementation between ARM64 & RISC-V Atish Patra
2020-10-19 21:29 ` Palmer Dabbelt
2020-11-05 18:07 ` Palmer Dabbelt
2020-11-06 17:18 ` Catalin Marinas
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