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drm/i915/selftests: Grab the runtime pm in shrink_thp

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Since we are not holding a wakeref, shrinking a bound object is not
guaranteed.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6370
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220706154738.235204-1-matthew.auld@intel.com
This commit is contained in:
Chris Wilson 2022-07-06 16:47:38 +01:00 committed by Matthew Auld
parent b94a1a207d
commit 027c38b412
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/i915/gem/selftests/huge_pages.c
View file

@ -1623,6 +1623,7 @@ static int igt_shrink_thp(void *arg)
struct file *file;
unsigned int flags = PIN_USER;
unsigned int n;
intel_wakeref_t wf;
bool should_swap;
int err;
@ -1659,9 +1660,11 @@ static int igt_shrink_thp(void *arg)
goto out_put;
}
wf = intel_runtime_pm_get(&i915->runtime_pm); /* active shrink */
err = i915_vma_pin(vma, 0, 0, flags);
if (err)
goto out_put;
goto out_wf;
if (obj->mm.page_sizes.phys < I915_GTT_PAGE_SIZE_2M) {
pr_info("failed to allocate THP, finishing test early\n");
@ -1732,6 +1735,8 @@ static int igt_shrink_thp(void *arg)
out_unpin:
i915_vma_unpin(vma);
out_wf:
intel_runtime_pm_put(&i915->runtime_pm, wf);
out_put:
i915_gem_object_put(obj);
out_vm: