On Wed, Aug 09, 2017 at 04:13:05PM -0700, Joe Kniss wrote:
> On Wed, Aug 9, 2017 at 12:14 PM, Noralf Trønnes <nor...@tronnes.org> wrote:
> >
> > Den 09.08.2017 01.42, skrev Joe Kniss:
> >>
> >> Because all drivers currently use gem objects for framebuffer planes,
> >> the virtual create_handle() is not required.  This change adds a
> >> struct drm_gem_object *gems[4] field to drm_framebuffer and removes
> >> create_handle() function pointer from drm_framebuffer_funcs.  The
> >> corresponding *_create_handle() function is removed from each driver.
> >>
> >> In many cases this change eliminates a struct *_framebuffer object,
> >> as the only need for the derived struct is the addition of the gem
> >> object pointer.
> >>
> >> TESTED: compiled: allyesconfig ARCH=x86,arm platforms:i915, rockchip
> >>
> >> Signed-off-by: Joe Kniss <d...@google.com>
> >> ---
> >
> >
> > Hi Joe,
> >
> > I'm also looking into adding gem objs to drm_framebuffer in this patch:
> > [PATCH v2 01/22] drm: Add GEM backed framebuffer library
> > https://lists.freedesktop.org/archives/dri-devel/2017-August/149782.html
> >
> 
> Great.  There's only minimal overlap here.  I'll rebase this change on yours
> once it's in.

Even better than waiting: Reviewing each another's patches. Noralf has
commit rights and knows how driver-wide refactoring works, so you're all
covered to get this landed, if you provide a bit of review for the review
market :-)

Cheers, Daniel

> 
> > [...]
> >
> >> diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c
> >> b/drivers/gpu/drm/drm_fb_cma_helper.c
> >> index ade319d10e70..f5f011b910b1 100644
> >> --- a/drivers/gpu/drm/drm_fb_cma_helper.c
> >> +++ b/drivers/gpu/drm/drm_fb_cma_helper.c
> >> @@ -31,14 +31,9 @@
> >>     #define DEFAULT_FBDEFIO_DELAY_MS 50
> >>   -struct drm_fb_cma {
> >> -       struct drm_framebuffer          fb;
> >> -       struct drm_gem_cma_object       *obj[4];
> >> -};
> >> -
> >>   struct drm_fbdev_cma {
> >>         struct drm_fb_helper    fb_helper;
> >> -       struct drm_fb_cma       *fb;
> >> +       struct drm_framebuffer  *fb;
> >
> >
> > This fb pointer isn't necessary, since fb_helper already has one.
> >
> 
> I'll remove it... but I am sure when I look deeper there will be more
> of these in the various drivers too.
> 
> > Noralf.
> >
> >
> 
> -joe
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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