[v2,0/3] Provide vmap/vunmap for VRAM helpers

Message

Thomas Zimmermann July 25, 2019, 5:19 p.m. UTC

The vmap operation is pin+kmap, as already implemented for PRIME
support. The vunmap operation is the inverse. This patch set makes
both available for drivers that use VRAM helpers, and replaces the
respective code in ast and mgag200.

v2:
	* fix documentation
	* add cross references to function documentation
	* document (the lack of) ref-counting for GEM VRAM BO mappings

Thomas Zimmermann (3):
  drm/vram: Provide vmap and vunmap operations for GEM VRAM objects
  drm/ast: Use drm_gem_vram_{vmap,vunmap}() to map cursor source BO
  drm/mgag200: Use drm_gem_vram_{vmap,vunmap}() to map cursor source BO

 drivers/gpu/drm/ast/ast_mode.c           | 21 +++-----
 drivers/gpu/drm/drm_gem_vram_helper.c    | 63 ++++++++++++++++++++----
 drivers/gpu/drm/mgag200/mgag200_cursor.c | 22 +++------
 include/drm/drm_gem_vram_helper.h        | 13 +++++
 4 files changed, 80 insertions(+), 39 deletions(-)

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2.22.0