From 71fc448c1aaf896f7859c46a7c0c33fbac411455 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 18 Jan 2019 11:36:32 +0000 Subject: [PATCH] drm/i915/selftests: Make evict tolerant of foreign objects The evict selftests presumed that all objects in use had been allocated by itself. This is a dubious claim and so instead of asserting complete control over the object lists, take (temporary) ownership of them instead. Signed-off-by: Chris Wilson Reviewed-by: Tvrtko Ursulin Link: https://patchwork.freedesktop.org/patch/msgid/20190118113632.7056-1-chris@chris-wilson.co.uk --- .../gpu/drm/i915/selftests/i915_gem_evict.c | 64 +++++++++++++++---- 1 file changed, 53 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c index 067e5dfa0a24..543d618c152b 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c @@ -31,30 +31,63 @@ static int populate_ggtt(struct drm_i915_private *i915) { - struct drm_i915_gem_object *obj; + struct drm_i915_gem_object *obj, *on; + unsigned long expected_unbound, expected_bound; + unsigned long unbound, bound, count; u64 size; + int err; + + expected_unbound = 0; + list_for_each_entry(obj, &i915->mm.unbound_list, mm.link) { + i915_gem_object_get(obj); + expected_unbound++; + } + + expected_bound = 0; + list_for_each_entry(obj, &i915->mm.bound_list, mm.link) { + i915_gem_object_get(obj); + expected_bound++; + } + count = 0; for (size = 0; size + I915_GTT_PAGE_SIZE <= i915->ggtt.vm.total; size += I915_GTT_PAGE_SIZE) { struct i915_vma *vma; obj = i915_gem_object_create_internal(i915, I915_GTT_PAGE_SIZE); - if (IS_ERR(obj)) - return PTR_ERR(obj); + if (IS_ERR(obj)) { + err = PTR_ERR(obj); + goto cleanup; + } vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0, 0); - if (IS_ERR(vma)) - return PTR_ERR(vma); + if (IS_ERR(vma)) { + err = PTR_ERR(vma); + goto cleanup; + } + + count++; } - if (!list_empty(&i915->mm.unbound_list)) { - size = 0; - list_for_each_entry(obj, &i915->mm.unbound_list, mm.link) - size++; + unbound = 0; + list_for_each_entry(obj, &i915->mm.unbound_list, mm.link) + unbound++; + if (unbound != expected_unbound) { + pr_err("%s: Found %lu objects unbound, expected %lu!\n", + __func__, unbound, expected_unbound); + err = -EINVAL; + goto cleanup; + } - pr_err("Found %lld objects unbound!\n", size); - return -EINVAL; + bound = 0; + list_for_each_entry(obj, &i915->mm.bound_list, mm.link) + bound++; + if (bound != expected_bound + count) { + pr_err("%s: Found %lu objects bound, expected %lu!\n", + __func__, bound, expected_bound + count); + err = -EINVAL; + goto cleanup; } if (list_empty(&i915->ggtt.vm.inactive_list)) { @@ -63,6 +96,15 @@ static int populate_ggtt(struct drm_i915_private *i915) } return 0; + +cleanup: + list_for_each_entry_safe(obj, on, &i915->mm.unbound_list, mm.link) + i915_gem_object_put(obj); + + list_for_each_entry_safe(obj, on, &i915->mm.bound_list, mm.link) + i915_gem_object_put(obj); + + return err; } static void unpin_ggtt(struct drm_i915_private *i915) -- 2.30.2