drm/i915/selftests/perf: measure memcpy bw between regions

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Measure the memcpy bw between our CPU accessible regions, trying all
supported mapping combinations(WC, WB) across various sizes.

v2:
    use smaller sizes
    throw in memcpy32/memcpy64/memcpy_from_wc

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200129093343.194570-1-matthew.auld@intel.com

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Matthew Auld 2020-01-29 09:33:43 +00:00 • committed by Chris Wilson

parent cd1c4d4a22

commit ba12993c52

2 changed files with 204 additions and 0 deletions

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1

drivers/gpu/drm/i915/selftests/i915_perf_selftests.h

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203

drivers/gpu/drm/i915/selftests/intel_memory_region.c

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