linux-kernel - Re: [PATCH v6 10/18] sh/tlb: Convert SH to generic mmu

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Message-ID: <20191204190341.GA11419@roeck-us.net>
Date:   Wed, 4 Dec 2019 11:03:41 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Will Deacon <will.deacon@....com>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nicholas Piggin <npiggin@...il.com>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        Linux MM <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Russell King <linux@...linux.org.uk>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Rik van Riel <riel@...riel.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Linux-sh list <linux-sh@...r.kernel.org>
Subject: Re: [PATCH v6 10/18] sh/tlb: Convert SH to generic mmu_gather

On Wed, Dec 04, 2019 at 04:17:26PM +0100, Geert Uytterhoeven wrote:
> Hi Günter,
> 
> > > Nah, but the v5.4-rc3 I booted recently on qemu -M r2d had
> > > CONFIG_PGTABLE_LEVELS=2, so it didn't show the problem.
> > >
> >
> > Guess that explains why I do not see the problem with my qemu boots.
> > I use rts7751r2dplus_defconfig. Is it possible to reproduce the problem
> > with qemu ? I don't think so, but maybe I am missing something.
> 
> Qemu seems to support r2d and shix only.
> For the latter, the website pointed to by the qemu sources no longer exists.
> But according to those sources, it's also sh7750-based, so no luck.
> 
Oh, well, worth asking. Thanks for the feedback.

Guenter