drm/i915: Release shortlived maps of longlived objects

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Some objects we map once during their construction, and then never
access their mappings again, even if they are kept around for the
duration of the driver. Keeping those pages mapped, often vmapped, is
therefore wasteful and we should release the maps as soon as we no
longer need them.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200708173748.32734-3-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2020-07-08 18:37:47 +01:00

parent 59c94b9d26

commit 89d19b2b45

7 changed files with 23 additions and 6 deletions

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2

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

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15

drivers/gpu/drm/i915/gem/i915_gem_pages.c

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2

drivers/gpu/drm/i915/gt/gen7_renderclear.c

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2

drivers/gpu/drm/i915/gt/intel_lrc.c

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drivers/gpu/drm/i915/gt/intel_renderstate.c

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drivers/gpu/drm/i915/gt/intel_ring_submission.c

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4

drivers/gpu/drm/i915/i915_perf.c

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