drm/i915/gt: Add selftests for TLB invalidation

Browse source

Check that we invalidate the TLB cache, the updated physical addresses
are immediately visible to the HW, and there is no retention of the old
physical address for concurrent HW access.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[ahajda: adjust to upstream driver, v2+]
Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
[tursulin: Small indentation fix.]
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230130165058.1647414-1-andrzej.hajda@intel.com

...

This commit is contained in:

Chris Wilson 2023-01-30 17:50:58 +01:00 • committed by Tvrtko Ursulin

parent 003e11ed2e

commit 73a6c67654

4 changed files with 394 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/gpu/drm/i915/gt/intel_gpu_commands.h

View file

4

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

View file

388

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

View file

1

drivers/gpu/drm/i915/selftests/i915_live_selftests.h

View file