drm/i915: Rework struct phys attachment handling

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Instead of creating a separate object type, we make changes to
the shmem type, to clear struct page backing. This will allow us to
ensure we never run into a race when we exchange obj->ops with other
function pointers.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210323155059.628690-9-maarten.lankhorst@linux.intel.com

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Maarten Lankhorst 2021-03-23 16:49:57 +01:00 • committed by Daniel Vetter

parent c471748dc7

commit a611709757

4 changed files with 78 additions and 60 deletions

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8

drivers/gpu/drm/i915/gem/i915_gem_object.h

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122

drivers/gpu/drm/i915/gem/i915_gem_phys.c

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22

drivers/gpu/drm/i915/gem/i915_gem_shmem.c

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6

drivers/gpu/drm/i915/gem/selftests/i915_gem_phys.c

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