drm: omapdrm: Fix incorrect usage of the term 'cache coherency'

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The is_cache_coherent() function currently returns true when the mapping
is not cache-coherent. This isn't a bug as such as the callers interpret
cache-coherent as meaning that the driver has to handle the coherency
manually, but it is nonetheless very confusing. Fix it and add a bit
more documentation to explain how cached buffers are handled.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

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Laurent Pinchart 2017-04-21 00:33:56 +03:00 • committed by Tomi Valkeinen

parent d61ce7da02

commit 24fbaca0e2

1 changed files with 15 additions and 7 deletions

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drivers/gpu/drm/omapdrm/omap_gem.c

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