}
static bool unsafe_drop_pages(struct drm_i915_gem_object *obj,
- unsigned long shrink)
+ unsigned long shrink, bool trylock_vm)
{
unsigned long flags;
flags = 0;
if (shrink & I915_SHRINK_ACTIVE)
- flags = I915_GEM_OBJECT_UNBIND_ACTIVE;
+ flags |= I915_GEM_OBJECT_UNBIND_ACTIVE;
if (!(shrink & I915_SHRINK_BOUND))
- flags = I915_GEM_OBJECT_UNBIND_TEST;
+ flags |= I915_GEM_OBJECT_UNBIND_TEST;
+ if (trylock_vm)
+ flags |= I915_GEM_OBJECT_UNBIND_VM_TRYLOCK;
if (i915_gem_object_unbind(obj, flags) == 0)
return true;
switch (obj->mm.madv) {
case I915_MADV_DONTNEED:
i915_gem_object_truncate(obj);
+ return;
case __I915_MADV_PURGED:
return;
}
unsigned long scanned = 0;
int err;
+ /* CHV + VTD workaround use stop_machine(); need to trylock vm->mutex */
+ bool trylock_vm = !ww && intel_vm_no_concurrent_access_wa(i915);
+
trace_i915_gem_shrink(i915, target, shrink);
/*
spin_unlock_irqrestore(&i915->mm.obj_lock, flags);
err = 0;
- if (unsafe_drop_pages(obj, shrink)) {
+ if (unsafe_drop_pages(obj, shrink, trylock_vm)) {
/* May arrive from get_pages on another bo */
if (!ww) {
if (!i915_gem_object_trylock(obj))