If the object is active and we need to perform a relocation upon it, we
need to take the slow relocation path. Before we do, double check the
active requests to see if they have completed.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 5c7eb3c93a86..6fa13c618a6b 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -411,6 +411,20 @@ relocate_entry_clflush(struct drm_i915_gem_object *obj,
return 0;
}
+static bool object_is_idle(struct drm_i915_gem_object *obj)
+{
+ unsigned long active = obj->active;
+ int idx;
+
+ for_each_active(active, idx) {
+ if (!i915_gem_active_is_idle(&obj->last_read[idx],
+ &obj->base.dev->struct_mutex))
+ return false;
+ }
+
+ return true;
+}
+
static int
i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj,
struct eb_vmas *eb,
@@ -494,7 +508,7 @@ i915_gem_execbuffer_relocate_entry(struct
drm_i915_gem_object *obj,
}
/* We can't wait for rendering with pagefaults disabled */
- if (obj->active && pagefault_disabled())
+ if (pagefault_disabled() && !object_is_idle(obj))
return -EFAULT;
if (use_cpu_reloc(obj))
--
2.8.1
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