Be pessimistic and presume that we actually allocate every page we
exercise via the mock_gtt (e.g. for gvt). In which case we have to keep
our working case under the available physical memory to prevent oom.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
---
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 600a3bcbd3d6..8e2e269db97e 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1244,6 +1244,7 @@ static int exercise_mock(struct drm_i915_private *i915,
u64 hole_start, u64 hole_end,
unsigned long end_time))
{
+ const u64 limit = totalram_pages << PAGE_SHIFT;
struct i915_gem_context *ctx;
struct i915_hw_ppgtt *ppgtt;
IGT_TIMEOUT(end_time);
@@ -1256,7 +1257,7 @@ static int exercise_mock(struct drm_i915_private *i915,
ppgtt = ctx->ppgtt;
GEM_BUG_ON(!ppgtt);
- err = func(i915, &ppgtt->vm, 0, ppgtt->vm.total, end_time);
+ err = func(i915, &ppgtt->vm, 0, min(ppgtt->vm.total, limit), end_time);
mock_context_close(ctx);
return err;
--
2.18.0
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