Re: [PATCH v2 1/2] drm: Document drm_cache interface

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On Mon, Jan 09, 2017 at 05:59:39PM -0500, Alex Deucher wrote:
> On Mon, Jan 9, 2017 at 4:56 PM, Gabriel Krisman Bertazi
> <krisman@xxxxxxxxxxxxxxx> wrote:
> > Notice that this uncovers an issue with the kernel-doc handling of array
> > arguments, causing the first parameter of drm_clflush_pages() to not
> > show up in the rst-generated page.  A proposed fix is under review in
> > linux-doc: <http://www.spinics.net/lists/linux-doc/msg42544.html>
> >
> > Changes since v1:
> >  - Add section to drm-mm.rst.
> >  - Fix kernel-doc style issues.
> >  - s/memory/kernel memory/.
> >
> > Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxxxxxxxxxx>
> 
> For the series:
> Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>

Both applied, thanks for patches&review.
-Daniel

> 
> > ---
> >  Documentation/gpu/drm-mm.rst |  6 ++++++
> >  drivers/gpu/drm/drm_cache.c  | 23 +++++++++++++++++++++++
> >  2 files changed, 29 insertions(+)
> >
> > diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
> > index 1ea94fc86caa..91d82f39fbf4 100644
> > --- a/Documentation/gpu/drm-mm.rst
> > +++ b/Documentation/gpu/drm-mm.rst
> > @@ -470,3 +470,9 @@ DRM MM Range Allocator Function References
> >
> >  .. kernel-doc:: include/drm/drm_mm.h
> >     :internal:
> > +
> > +DRM Cache Handling
> > +==================
> > +
> > +.. kernel-doc:: drivers/gpu/drm/drm_cache.c
> > +   :export:
> > diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
> > index a7916e5f8864..5066638928ec 100644
> > --- a/drivers/gpu/drm/drm_cache.c
> > +++ b/drivers/gpu/drm/drm_cache.c
> > @@ -67,6 +67,14 @@ static void drm_cache_flush_clflush(struct page *pages[],
> >  }
> >  #endif
> >
> > +/**
> > + * drm_clflush_pages - Flush dcache lines of a set of pages.
> > + * @pages: List of pages to be flushed.
> > + * @num_pages: Number of pages in the array.
> > + *
> > + * Flush every data cache line entry that points to an address belonging
> > + * to a page in the array.
> > + */
> >  void
> >  drm_clflush_pages(struct page *pages[], unsigned long num_pages)
> >  {
> > @@ -101,6 +109,13 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages)
> >  }
> >  EXPORT_SYMBOL(drm_clflush_pages);
> >
> > +/**
> > + * drm_clflush_sg - Flush dcache lines pointing to a scather-gather.
> > + * @st: struct sg_table.
> > + *
> > + * Flush every data cache line entry that points to an address in the
> > + * sg.
> > + */
> >  void
> >  drm_clflush_sg(struct sg_table *st)
> >  {
> > @@ -125,6 +140,14 @@ drm_clflush_sg(struct sg_table *st)
> >  }
> >  EXPORT_SYMBOL(drm_clflush_sg);
> >
> > +/**
> > + * drm_clflush_virt_range - Flush dcache lines of a region
> > + * @addr: Initial kernel memory address.
> > + * @length: Region size.
> > + *
> > + * Flush every data cache line entry that points to an address in the
> > + * region requested.
> > + */
> >  void
> >  drm_clflush_virt_range(void *addr, unsigned long length)
> >  {
> > --
> > 2.11.0
> >
> > _______________________________________________
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> > dri-devel@xxxxxxxxxxxxxxxxxxxxx
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
> _______________________________________________
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> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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