[PATCH 0/3] Various clean-up patches for GEM VRAM

[Daniel Vetter]

On Tue, May 21, 2019 at 01:08:28PM +0200, Thomas Zimmermann wrote:
> Replacing drm_gem_vram_push_to_system() moves policy from drivers back
> to the memory manager. Now, unused BOs are only evicted when the space
> is required.
> 
> The lock/unlock-renaming patch aligns the interface with other names
> in DRM. No functional changes are done.
> 
> Finally, there's now a lockdep assert that ensures we don't call the
> GEM VRAM _locked() functions with an unlocked BO.
> 
> Patches are against a recent drm-tip and tested on mgag200 and ast HW.
> 
> Thomas Zimmermann (3):
>   drm: Replace drm_gem_vram_push_to_system() with kunmap + unpin
>   drm: Rename reserve/unreserve to lock/unlock in GEM VRAM helpers
>   drm: Assert that BO is locked in drm_gem_vram_{pin,unpin}_locked()

$ make htmldocs

results in new warnings:

./drivers/gpu/drm/drm_gem_vram_helper.c:595: warning: cannot understand function prototype: 'const struct drm_vram_mm_funcs drm_gem_vram_mm_funcs = '
./drivers/gpu/drm/drm_gem_vram_helper.c:596: warning: cannot understand function prototype: 'const struct drm_vram_mm_funcs drm_gem_vram_mm_funcs = '

You might want to review the entire output and make sure all the links
work and everything looks pretty and reasonable.

Thanks, Daniel
> 
>  drivers/gpu/drm/ast/ast_fb.c             | 11 ++-
>  drivers/gpu/drm/ast/ast_mode.c           | 26 ++++---
>  drivers/gpu/drm/drm_gem_vram_helper.c    | 86 ++++++------------------
>  drivers/gpu/drm/drm_vram_helper_common.c |  2 -
>  drivers/gpu/drm/mgag200/mgag200_cursor.c | 40 +++++------
>  drivers/gpu/drm/mgag200/mgag200_fb.c     | 11 ++-
>  drivers/gpu/drm/mgag200/mgag200_mode.c   | 15 +++--
>  include/drm/drm_gem_vram_helper.h        |  9 ++-
>  8 files changed, 80 insertions(+), 120 deletions(-)
> 
> --
> 2.21.0
> 

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