drm/vram-helper: Managed vram helpers

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Calling drmm_vram_helper_init() sets up a managed instance of
VRAM MM. Releasing the DRM device also frees the memory manager.

The patch also updates the DRM documentation for VRAM helpers. The
tutorial now describes the new managed interface. The old interfaces
are deprecated and should not be used in new code.

v2:
	* rename init function to drmm_vram_helper_init()
	* return errno code from init function; caller does not
	  need vram_mm anyway
	* update documentation and remove docs for deprecated
	  un-managed functions

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-2-tzimmermann@suse.de

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This commit is contained in:

Thomas Zimmermann 2020-07-16 14:53:48 +02:00

parent 40a55dc13e

commit a5f23a7235

2 changed files with 51 additions and 36 deletions

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84

drivers/gpu/drm/drm_gem_vram_helper.c

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3

include/drm/drm_gem_vram_helper.h

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