drm/i915: Update I915_GEM_BUSY IOCTL to understand composite fences

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Parallel submission create composite fences (dma_fence_array) for excl /
shared slots in objects. The I915_GEM_BUSY IOCTL checks these slots to
determine the busyness of the object. Prior to patch it only check if
the fence in the slot was a i915_request. Update the check to understand
composite fences and correctly report the busyness.

v2:
 (Tvrtko)
  - Remove duplicate BUILD_BUG_ON

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211014172005.27155-24-matthew.brost@intel.com

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This commit is contained in:

Matthew Brost 2021-10-14 10:20:03 -07:00 • committed by John Harrison

parent afc76f307e

commit 7647f0096e

3 changed files with 55 additions and 13 deletions

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59

drivers/gpu/drm/i915/gem/i915_gem_busy.c

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5

drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c

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6

drivers/gpu/drm/i915/i915_request.h

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