From: Paul Walmsley <paul.walmsley@sifive.com>
To: Logan Gunthorpe <logang@deltatee.com>
Cc: Greentime Hu <green.hu@gmail.com>, Rob Herring <robh@kernel.org>,
Albert Ou <aou@eecs.berkeley.edu>,
Andrew Waterman <andrew@sifive.com>,
Palmer Dabbelt <palmer@sifive.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Stephen Bates <sbates@raithlin.com>,
Olof Johansson <olof@lixom.net>,
greentime.hu@sifive.com, linux-riscv@lists.infradead.org,
Michael Clark <michaeljclark@mac.com>,
Christoph Hellwig <hch@lst.de>,
linux-mm@kvack.org
Subject: Re: [PATCH v4 2/2] RISC-V: Implement sparsemem
Date: Tue, 13 Aug 2019 09:48:43 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.21.9999.1908130947130.30024@viisi.sifive.com> (raw)
In-Reply-To: <alpine.DEB.2.21.9999.1908130921170.30024@viisi.sifive.com>
On Tue, 13 Aug 2019, Paul Walmsley wrote:
> On Tue, 13 Aug 2019, Logan Gunthorpe wrote:
>
> > On 2019-08-13 12:04 a.m., Greentime Hu wrote:
> >
> > > Every architecture with mmu defines their own pfn_valid().
> >
> > Not true. Arm64, for example just uses the generic implementation in
> > mmzone.h.
>
> arm64 seems to define their own:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/Kconfig#n899
>
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/mm/init.c#n235
>
> While there are many architectures which have their own pfn_valid();
> oddly, almost none of them set HAVE_ARCH_PFN_VALID ?
(fixed the linux-mm@ address)
- Paul
next prev parent reply other threads:[~2019-08-13 16:48 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-09 20:39 [PATCH v4 0/2] [PATCH v2 0/6] sparsemem support for RISC-V Logan Gunthorpe
2019-01-09 20:39 ` [PATCH v4 1/2] sh: mm: make use of new memblocks_present() helper Logan Gunthorpe
2019-01-15 13:58 ` Christoph Hellwig
2019-01-15 17:30 ` Logan Gunthorpe
2019-01-09 20:39 ` [PATCH v4 2/2] RISC-V: Implement sparsemem Logan Gunthorpe
2019-01-15 13:58 ` Christoph Hellwig
2019-07-31 6:30 ` Greentime Hu
2019-07-31 17:07 ` Logan Gunthorpe
2019-08-01 3:34 ` Greentime Hu
[not found] ` <CAEbi=3eZcgWevpX9VO9ohgxVDFVprk_t52Xbs3-TdtZ+js3NVA@mail.gmail.com>
2019-08-09 15:46 ` Logan Gunthorpe
2019-08-09 17:01 ` Greentime Hu
2019-08-09 19:03 ` Logan Gunthorpe
2019-08-12 4:01 ` Greentime Hu
2019-08-12 15:51 ` Logan Gunthorpe
2019-08-13 6:04 ` Greentime Hu
2019-08-13 16:14 ` Logan Gunthorpe
2019-08-13 16:39 ` Paul Walmsley
2019-08-13 16:48 ` Paul Walmsley [this message]
2019-08-13 16:49 ` Logan Gunthorpe
2019-08-14 13:35 ` Greentime Hu
2019-08-14 16:56 ` Logan Gunthorpe
2019-08-14 17:40 ` Paul Walmsley
2019-08-14 17:46 ` Logan Gunthorpe
2019-08-14 20:09 ` Paul Walmsley
2019-08-14 22:21 ` Logan Gunthorpe
2019-08-15 9:31 ` Greentime Hu
2019-08-15 16:20 ` Logan Gunthorpe
2019-08-16 2:07 ` Greentime Hu
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