drm/i915: Cache ringbuffer GTT VMA

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Purpose is to avoid calling i915_gem_obj_ggtt_offset from the
interrupt context without the big lock held.

v2: Renamed gtt_start to gtt_offset. (Daniel Vetter)
v3: Cache the VMA instead of address. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1452870629-13830-2-git-send-email-tvrtko.ursulin@linux.intel.com

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This commit is contained in:

Tvrtko Ursulin 2016-01-15 15:10:28 +00:00

parent ca82580c9c

commit 0eb973d31d

3 changed files with 5 additions and 2 deletions

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3

drivers/gpu/drm/i915/intel_lrc.c

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3

drivers/gpu/drm/i915/intel_ringbuffer.c

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1

drivers/gpu/drm/i915/intel_ringbuffer.h

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