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.

> [...]
>
>> 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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