Re: [PATCH] drm: Move plane helpers into drm_kms_helper.ko

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On Tue, Jun 03, 2014 at 04:49:25PM +0200, Daniel Vetter wrote:
> On Tue, Jun 3, 2014 at 4:44 PM, Matt Roper <matthew.d.roper@xxxxxxxxx> wrote:
> > On Tue, Jun 03, 2014 at 03:38:56PM +0200, Daniel Vetter wrote:
> >> The drm core shouldn't depend upon any helpers, and we make sure this
> >> doesn't accidentally happen by moving them into the helper-only
> >> drm_kms_helper.ko module.
> >>
> >> Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
> >> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> >
> > Are there any KMS drivers that don't 'select DRM_KMS_HELPER' in their
> > Kconfig today?  From a quick grep + cscope it looks like radeon and
> > vmwgfx don't select the helper library.
> >
> > Since drm_crtc_init() is part of the helper library now (since it
> > creates a helper-created primary plane), I think those drivers either
> > need to select the helper in their Kconfig to get a proper build, or
> > they need to be updated to provide their own primary planes and call
> > drm_crtc_init_with_planes(), right?
> 
> Radeon definitely uses the crtc helpers, so should have the dependency
> somewhere. vmwgfx might indeed be broken now a bit. I'll wait for the
> 0-day kernel test build farm to confirm that ;-)
> -Daniel

Yeah, you're right; now that I look closer radeon pulls it in from the
main drm directory Kconfig and only has ums stuff in its driver
directory Kconfig.  But I think vmwgfx probably still needs to select
the helper library.

If vmwgfx gets a kconfig update to pull in the helper library, then this
is
Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx>


Matt


> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch

-- 
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
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