[PATCH v2 0/4] drm/vram: Provide helpers for prepare_fb() and cleanup_fb()

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The implementation of the plane's call-back functions prepare_fb() and
cleanup_fb() for GEM VRAM helpers are sharable among drivers.

Patch #3 also fixes two bugs that have been present in hibmc since it was
first added. The primary plane's atomic_update() is not responsible for
pinning BOs. And it never unpinned unused BOs. VRAM is being exausted
over time.

The new helpers have been tested to work.

v2:
	* provide helpers for struct drm_simple_display_pipe_funcs, and...
	* ...use them in bochs

Thomas Zimmermann (4):
  drm/vram-helpers: Add helpers for prepare_fb() and cleanup_fb()
  drm/bochs: Replace prepare_fb()/cleanup_fb() with GEM VRAM helpers
  drm/hisilicon/hibmc: Use GEM VRAM's prepare_fb() and cleanup_fb()
    helpers
  drm/vboxvideo: Replace prepare_fb()/cleanup_fb() with GEM VRAM helpers

 drivers/gpu/drm/bochs/bochs_kms.c             |  26 +---
 drivers/gpu/drm/drm_gem_vram_helper.c         | 126 ++++++++++++++++++
 .../gpu/drm/hisilicon/hibmc/hibmc_drm_de.c    |  14 +-
 drivers/gpu/drm/vboxvideo/vbox_mode.c         |  61 +--------
 include/drm/drm_gem_vram_helper.h             |  25 ++++
 5 files changed, 161 insertions(+), 91 deletions(-)

--
2.23.0

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