[PATCH v3 00/10] drm/gma500: Refactor GEM code

[Thomas Zimmermann <tzimmermann@suse.de>]

Bring GEM code up to current standards and untangle the connection to
GTT helpers.

The allocation and pinning helpers for struct gtt_range are located in
the GTT code, but actually part of the GEM implementation. The patchset
moves them to GEM code and refactors much of the implementation. Most
of the GTT code is then independend from the struct gtt_range, while
the GEM code does not contain GTT management.

In addition to internal refiactoring, patches 2 to 4 update the rest of
the driver to use the GEM interfaces for object allocation and release.

Finally, rename struct gtt_range to struct psb_gem_object to designate
it as a 'real' GEM object.

Future work: with the GEM and GTT code separated, future patchsets can
implement on-demand release of GTT entries, or remove the perma-mapping
of stolen memory. Dma-buf support might also be added.

Tested on Atom N2800 hardware.

v3:
	* replace [static 1] with pointer notation
	* keep lost comments about GTT locking
v2:
	* keep docs about GTT locking
	* release mutex in pin error path

Thomas Zimmermann (10):
  drm/gma500: Move helpers for struct gtt_range from gtt.c to gem.c
  drm/gma500: Use to_gtt_range() everywhere
  drm/gma500: Reimplement psb_gem_create()
  drm/gma500: Allocate GTT ranges in stolen memory with psb_gem_create()
  drm/gma500: Rename psb_gtt_{pin,unpin}() to psb_gem_{pin,unpin}()
  drm/gma500: Inline psb_gtt_attach_pages() and psb_gtt_detach_pages()
  drm/gma500: Inline psb_gtt_{alloc,free}_range() into rsp callers
  drm/gma500: Set page-caching flags in GEM pin/unpin
  drm/gma500: Rewrite GTT page insert/remove without struct gtt_range
  drm/gma500: Rename struct gtt_range to struct psb_gem_object

 drivers/gpu/drm/gma500/framebuffer.c       |  52 +---
 drivers/gpu/drm/gma500/gem.c               | 234 +++++++++++----
 drivers/gpu/drm/gma500/gem.h               |  28 +-
 drivers/gpu/drm/gma500/gma_display.c       |  51 ++--
 drivers/gpu/drm/gma500/gtt.c               | 326 +++++----------------
 drivers/gpu/drm/gma500/gtt.h               |  29 +-
 drivers/gpu/drm/gma500/oaktrail_crtc.c     |   3 +-
 drivers/gpu/drm/gma500/psb_intel_display.c |  17 +-
 drivers/gpu/drm/gma500/psb_intel_drv.h     |   2 +-
 9 files changed, 325 insertions(+), 417 deletions(-)

--
2.33.0