From: Guo Ren <ren_guo@c-sky.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
David Miller <davem@davemloft.net>,
gregkh <gregkh@linuxfoundation.org>,
Christoph Hellwig <hch@infradead.org>,
Marc Zyngier <marc.zyngier@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Peter Zijlstra <peterz@infradead.org>,
Rob Herring <robh@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-arch <linux-arch@vger.kernel.org>,
DTML <devicetree@vger.kernel.org>,
Rob Herring <robh+dt@kernel.org>,
c-sky_gcc_upstream@c-sky.com
Subject: Re: [PATCH V9 07/21] csky: MMU and page table management
Date: Thu, 18 Oct 2018 10:05:54 +0800 [thread overview]
Message-ID: <20181018020552.GB12027@guoren-Inspiron-7460> (raw)
In-Reply-To: <CAK8P3a1ME=1Gb1d_q_+9zP4bLr9wJC7hmEv4KGCt5GN6dG5F8g@mail.gmail.com>
On Wed, Oct 17, 2018 at 05:06:56PM +0200, Arnd Bergmann wrote:
> On Tue, Oct 16, 2018 at 5:01 AM Guo Ren <ren_guo@c-sky.com> wrote:
> >
> > This patch adds files related to memory management and here is our
> > memory-layout:
> >
> > Fixmap : 0xffc02000 – 0xfffff000 (4 MB - 12KB)
> > Pkmap : 0xff800000 – 0xffc00000 (4 MB)
> > Vmalloc : 0xf0200000 – 0xff000000 (238 MB)
> > Lowmem : 0x80000000 – 0xc0000000 (1GB)
> >
> > abiv1 CPU (CK610) is VIPT cache and it doesn't support highmem.
> > abiv2 CPUs are all PIPT cache and they could support highmem.
> >
> > Lowmem is directly mapped by msa0 & msa1 reg, and we needn't setup
> > memory page table for it.
> >
> > Link:https://lore.kernel.org/lkml/20180518215548.GH17671@n2100.armlinux.org.uk/
> > Signed-off-by: Guo Ren <ren_guo@c-sky.com>
> > Cc: Christoph Hellwig <hch@infradead.org>
> > Cc: Arnd Bergmann <arnd@arndb.de>
>
> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
>
> Christoph had all the useful comments on this one, I just checked that I didn't
> spot anything beyond that.
Yes, Christoph help a lot and find a critical bug of "sync_dma > 4K".
Best Regards
Guo Ren
next prev parent reply other threads:[~2018-10-18 2:06 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-16 2:58 [PATCH V9 00/21] C-SKY(csky) Linux Kernel Port Guo Ren
2018-10-16 2:58 ` [PATCH V9 01/21] csky: Build infrastructure Guo Ren
2018-10-23 0:08 ` Guo Ren
2018-10-24 22:53 ` Arnd Bergmann
2018-10-25 17:04 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 02/21] csky: defconfig Guo Ren
2018-10-17 14:56 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 03/21] csky: Kernel booting Guo Ren
2018-10-17 14:58 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 04/21] csky: Exception handling and mm-fault Guo Ren
2018-10-17 14:59 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 05/21] csky: System Call Guo Ren
2018-10-17 15:02 ` Arnd Bergmann
2018-10-18 2:02 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 06/21] csky: Cache and TLB routines Guo Ren
2018-10-17 15:08 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 07/21] csky: MMU and page table management Guo Ren
2018-10-17 15:06 ` Arnd Bergmann
2018-10-18 2:05 ` Guo Ren [this message]
2018-10-16 2:58 ` [PATCH V9 08/21] csky: Process management and Signal Guo Ren
2018-10-17 15:11 ` Arnd Bergmann
2018-10-18 2:37 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 09/21] csky: VDSO and rt_sigreturn Guo Ren
2018-10-17 15:13 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 10/21] csky: IRQ handling Guo Ren
2018-10-17 15:14 ` Arnd Bergmann
2018-10-18 2:39 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 11/21] csky: Atomic operations Guo Ren
2018-10-17 15:17 ` Arnd Bergmann
2018-10-18 2:40 ` Guo Ren
2018-10-21 20:55 ` Peter Zijlstra
2018-10-22 1:52 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 12/21] csky: ELF and module probe Guo Ren
2018-10-17 15:18 ` Arnd Bergmann
2018-10-18 2:49 ` Guo Ren
2018-10-18 8:31 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 13/21] csky: Library functions Guo Ren
2018-10-17 15:24 ` Arnd Bergmann
2018-10-18 3:10 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 14/21] csky: User access Guo Ren
2018-10-17 15:37 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 15/21] csky: Debug and Ptrace GDB Guo Ren
2018-10-17 15:46 ` Arnd Bergmann
2018-10-18 3:17 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 16/21] csky: SMP support Guo Ren
2018-10-17 15:47 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 17/21] csky: Misc headers Guo Ren
2018-10-17 15:49 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 18/21] dt-bindings: csky CPU Bindings Guo Ren
2018-10-17 15:50 ` Arnd Bergmann
2018-10-18 3:21 ` Guo Ren
2018-10-18 3:45 ` Guo Ren
2018-10-18 14:31 ` Rob Herring
2018-10-19 2:19 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 19/21] dt-bindings: Add vendor prefix for csky Guo Ren
2018-10-16 2:58 ` [PATCH V9 20/21] MAINTAINERS: Add csky Guo Ren
2018-10-17 15:51 ` Arnd Bergmann
2018-10-16 5:48 ` [PATCH V9 21/21] csky: support dword access for get_user_size() Guo Ren
2018-10-17 15:44 ` Arnd Bergmann
2018-10-18 3:41 ` Guo Ren
2018-10-18 8:34 ` Arnd Bergmann
2018-10-18 8:57 ` Guo Ren
2018-10-24 7:17 ` Arnd Bergmann
2018-10-25 17:08 ` Guo Ren
2018-10-17 15:58 ` [PATCH V9 00/21] C-SKY(csky) Linux Kernel Port Arnd Bergmann
2018-10-18 4:10 ` Guo Ren
2018-10-18 8:36 ` Arnd Bergmann
2018-10-18 9:03 ` Guo Ren
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