r6749 - /packages/nvidia-graphics-drivers/branches/367/debian/module/debian/patches/arm-outer-sync.patch

[Luca Boccassi]

On Wed, 2016-07-20 at 00:44 +0100, Luca Boccassi wrote:
> On 20 July 2016 at 00:42, Luca Boccassi <luca.boccassi at gmail.com> wrote:
> > On 20 July 2016 at 00:40, Andreas Beckmann <anbe at debian.org> wrote:
> >> On 2016-07-20 01:38, luca.boccassi-guest at users.alioth.debian.org wrote:
> >>> Log:
> >>> Update arm-outer-sync.patch to fix WRITE_COMBINE_FLUSH in nvidia-drm/nvidia-drm-linux.c too.
> >>> Fixes armhf kernel module build failure in 4.4+.
> >>>
> >>> Modified:
> >>>     packages/nvidia-graphics-drivers/branches/367/debian/module/debian/patches/arm-outer-sync.patch
> >>
> >> Should that be fixed in 364, too, which introduced the -drm module?
> >>
> >>
> >> Andreas
> >
> > Possibly yes but haven't checked yet, will do so tomorrow evening and
> > test it and commit it if necessary.
> >
> > Kind regards,
> > Luca Boccassi
> 
> On the other hand the breakage is new in 367.35, didn't happen in
> 367.18 and doesn't happen in 364.19, so actually probably not as it
> might be new code.
> 
> Kind regards,
> Luca Boccassi

Indeed it is new code, the re-definition in nvidia-drm-linux.c is not in
364.19:

luca at luca-desktop:/tmp/nvidia-graphics-drivers-364.19.orig/NVIDIA-Linux-armv7l-gnueabihf-364.19/kernel$ grep -r WRITE_COMBINE_FLUSH
common/inc/nv-linux.h:#define WRITE_COMBINE_FLUSH() asm volatile("sfence":::"memory")
common/inc/nv-linux.h:#define WRITE_COMBINE_FLUSH()    { dsb(); outer_sync(); }
common/inc/nv-linux.h:#define WRITE_COMBINE_FLUSH()    mb()
common/inc/nv-linux.h:#define WRITE_COMBINE_FLUSH()    asm volatile("sync":::"memory")
nvidia/os-interface.c:    WRITE_COMBINE_FLUSH();

Kind regards,
Luca Boccassi
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