* [Intel-gfx] [PATCH i-g-t] i915/gem_vm_create: Call set-domain manually
@ 2020-02-19 12:13 Chris Wilson
0 siblings, 0 replies; only message in thread
From: Chris Wilson @ 2020-02-19 12:13 UTC (permalink / raw)
To: intel-gfx; +Cc: igt-dev
Since we are secretly using execbuf to write into an object's location,
then read back from the object we must manually handle the domain
changes.
Closes: https://gitlab.freedesktop.org/drm/intel/issues/314
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
tests/i915/gem_vm_create.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tests/i915/gem_vm_create.c b/tests/i915/gem_vm_create.c
index cbd273d9d..e14b07b5f 100644
--- a/tests/i915/gem_vm_create.c
+++ b/tests/i915/gem_vm_create.c
@@ -324,11 +324,15 @@ static void isolation(int i915)
gem_execbuf(i915, &eb); /* bind object into vm[0] */
/* Verify the trick with the assumed target address works */
+ gem_set_domain(i915, obj[0].handle,
+ I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
write_to_address(i915, ctx[0], obj[0].offset, 1);
gem_read(i915, obj[0].handle, 0, &result, sizeof(result));
igt_assert_eq(result, 1);
/* Now check that we can't write to vm[0] from second fd/vm */
+ gem_set_domain(i915, obj[0].handle,
+ I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
write_to_address(other, ctx[1], obj[0].offset, 2);
gem_read(i915, obj[0].handle, 0, &result, sizeof(result));
igt_assert_eq(result, 1);
--
2.25.0
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