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From: Mike Rapoport <rppt@linux.ibm.com>
To: Adam Ford <aford173@gmail.com>
Cc: Rich Felker <dalias@libc.org>,
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	"David S. Miller" <davem@davemloft.net>,
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Subject: Re: [PATCH v2 00/21] Refine memblock API
Date: Sat, 28 Sep 2019 10:33:32 +0300	[thread overview]
Message-ID: <20190928073331.GA5269@linux.ibm.com> (raw)
In-Reply-To: <CAHCN7xL1sFXDhKUpj04d3eDZNgLA1yGAOqwEeCxedy1Qm-JOfQ@mail.gmail.com>

On Thu, Sep 26, 2019 at 02:35:53PM -0500, Adam Ford wrote:
> On Thu, Sep 26, 2019 at 11:04 AM Mike Rapoport <rppt@linux.ibm.com> wrote:
> >
> > Hi,
> >
> > On Thu, Sep 26, 2019 at 08:09:52AM -0500, Adam Ford wrote:
> > > On Wed, Sep 25, 2019 at 10:17 AM Fabio Estevam <festevam@gmail.com> wrote:
> > > >
> > > > On Wed, Sep 25, 2019 at 9:17 AM Adam Ford <aford173@gmail.com> wrote:
> > > >
> > > > > I tried cma=256M and noticed the cma dump at the beginning didn't
> > > > > change.  Do we need to setup a reserved-memory node like
> > > > > imx6ul-ccimx6ulsom.dtsi did?
> > > >
> > > > I don't think so.
> > > >
> > > > Were you able to identify what was the exact commit that caused such regression?
> > >
> > > I was able to narrow it down the 92d12f9544b7 ("memblock: refactor
> > > internal allocation functions") that caused the regression with
> > > Etnaviv.
> >
> >
> > Can you please test with this change:
> >
> 
> That appears to have fixed my issue.  I am not sure what the impact
> is, but is this a safe option?

It's not really a fix, I just wanted to see how exactly 92d12f9544b7 ("memblock:
refactor internal allocation functions") broke your setup.

Can you share the dts you are using and the full kernel log?
 
> adam
> 
> > diff --git a/mm/memblock.c b/mm/memblock.c
> > index 7d4f61a..1f5a0eb 100644
> > --- a/mm/memblock.c
> > +++ b/mm/memblock.c
> > @@ -1356,9 +1356,6 @@ static phys_addr_t __init memblock_alloc_range_nid(phys_addr_t size,
> >                 align = SMP_CACHE_BYTES;
> >         }
> >
> > -       if (end > memblock.current_limit)
> > -               end = memblock.current_limit;
> > -
> >  again:
> >         found = memblock_find_in_range_node(size, align, start, end, nid,
> >                                             flags);
> >
> > > I also noticed that if I create a reserved memory node as was done one
> > > imx6ul-ccimx6ulsom.dtsi the 3D seems to work again, but without it, I
> > > was getting errors regardless of the 'cma=256M' or not.
> > > I don't have a problem using the reserved memory, but I guess I am not
> > > sure what the amount should be.  I know for the video decoding 1080p,
> > > I have historically used cma=128M, but with the 3D also needing some
> > > memory allocation, is that enough or should I use 256M?
> > >
> > > adam
> >
> > --
> > Sincerely yours,
> > Mike.
> >

-- 
Sincerely yours,
Mike.


  reply	other threads:[~2019-09-28  7:36 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-21  8:03 [PATCH v2 00/21] Refine memblock API Mike Rapoport
2019-01-21  8:03 ` [PATCH v2 01/21] openrisc: prefer memblock APIs returning virtual address Mike Rapoport
2019-01-27  3:07   ` Stafford Horne
2019-01-21  8:03 ` [PATCH v2 02/21] powerpc: use memblock functions " Mike Rapoport
2019-01-29  9:52   ` Michael Ellerman
2019-01-21  8:03 ` [PATCH v2 03/21] memblock: replace memblock_alloc_base(ANYWHERE) with memblock_phys_alloc Mike Rapoport
2019-01-21  8:03 ` [PATCH v2 04/21] memblock: drop memblock_alloc_base_nid() Mike Rapoport
2019-01-21  8:03 ` [PATCH v2 05/21] memblock: emphasize that memblock_alloc_range() returns a physical address Mike Rapoport
2019-01-21  8:03 ` [PATCH v2 06/21] memblock: memblock_phys_alloc_try_nid(): don't panic Mike Rapoport
2019-01-25 17:45   ` Catalin Marinas
2019-01-25 19:32     ` Mike Rapoport
2019-01-29  9:56   ` Michael Ellerman
2019-01-29  9:58     ` Michael Ellerman
2019-01-21  8:03 ` [PATCH v2 07/21] memblock: memblock_phys_alloc(): " Mike Rapoport
2019-01-21  8:03 ` [PATCH v2 08/21] memblock: drop __memblock_alloc_base() Mike Rapoport
2019-01-21  8:03 ` [PATCH v2 09/21] memblock: drop memblock_alloc_base() Mike Rapoport
2019-01-29 10:29   ` Michael Ellerman
2019-01-21  8:03 ` [PATCH v2 10/21] memblock: refactor internal allocation functions Mike Rapoport
2019-02-03  9:39   ` Michael Ellerman
2019-02-03 10:04     ` Mike Rapoport
2019-02-03 11:39     ` Mike Rapoport
2019-02-04  8:45       ` Michael Ellerman
2019-02-04 23:08         ` Stephen Rothwell
2019-01-21  8:03 ` [PATCH v2 11/21] memblock: make memblock_find_in_range_node() and choose_memblock_flags() static Mike Rapoport
2019-01-21  8:03 ` [PATCH v2 12/21] arch: use memblock_alloc() instead of memblock_alloc_from(size, align, 0) Mike Rapoport
2019-01-21  8:04 ` [PATCH v2 13/21] arch: don't memset(0) memory returned by memblock_alloc() Mike Rapoport
2019-01-21  8:04 ` [PATCH v2 14/21] ia64: add checks for the return value of memblock_alloc*() Mike Rapoport
2019-01-21  8:04 ` [PATCH v2 15/21] sparc: " Mike Rapoport
2019-01-21  8:04 ` [PATCH v2 16/21] mm/percpu: " Mike Rapoport
2019-01-21  8:04 ` [PATCH v2 17/21] init/main: " Mike Rapoport
2019-01-21  8:04 ` [PATCH v2 18/21] swiotlb: " Mike Rapoport
2019-01-21  8:04 ` [PATCH v2 19/21] treewide: " Mike Rapoport
2019-01-21  8:39   ` Geert Uytterhoeven
2019-01-21 17:18   ` Rob Herring
2019-01-31  6:07   ` Christophe Leroy
2019-01-31  6:41     ` Mike Rapoport
2019-01-31  6:44       ` Christophe Leroy
2019-01-31  7:07         ` Christophe Leroy
2019-01-31  7:14           ` Mike Rapoport
2019-01-31 15:23   ` Max Filippov
2019-01-21  8:04 ` [PATCH v2 20/21] memblock: memblock_alloc_try_nid: don't panic Mike Rapoport
2019-01-21  8:04 ` [PATCH v2 21/21] memblock: drop memblock_alloc_*_nopanic() variants Mike Rapoport
2019-01-30 13:38   ` Petr Mladek
2019-09-24 17:52 ` [PATCH v2 00/21] Refine memblock API Adam Ford
2019-09-25 12:12   ` Fabio Estevam
2019-09-25 12:17     ` Adam Ford
2019-09-25 15:17       ` Fabio Estevam
2019-09-26 13:09         ` Adam Ford
2019-09-26 16:04           ` Mike Rapoport
2019-09-26 19:35             ` Adam Ford
2019-09-28  7:33               ` Mike Rapoport [this message]
2019-09-29 13:33                 ` Adam Ford
2019-10-02  0:14                   ` Adam Ford
2019-10-02  7:36                     ` Mike Rapoport
2019-10-02 11:14                       ` Adam Ford

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