drm/i915: i915_gem_object_create_from_data() doesn't require struct_mutex

Both object creation and backing storage page allocation do not require
struct_mutex, so do not require the caller to take it.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170317194648.12468-1-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>

2 files changed, 1 insertions, 5 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index fd611b4c1a2c..3492f8d27c32 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4961,9 +4961,7 @@ i915_gem_object_create_from_data(struct drm_i915_private *dev_priv,
         if (IS_ERR(obj))
                 return obj;
 
-        ret = i915_gem_object_set_to_cpu_domain(obj, true);
-        if (ret)
-                goto fail;
+        GEM_BUG_ON(obj->base.write_domain != I915_GEM_DOMAIN_CPU);
 
         ret = i915_gem_object_pin_pages(obj);
         if (ret)
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 21f6d822194d..86530c92337a 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -376,9 +376,7 @@ void intel_uc_prepare_fw(struct drm_i915_private *dev_priv,
                         uc_fw->major_ver_found, uc_fw->minor_ver_found,
                         uc_fw->major_ver_wanted, uc_fw->minor_ver_wanted);
 
-        mutex_lock(&dev_priv->drm.struct_mutex);
         obj = i915_gem_object_create_from_data(dev_priv, fw->data, fw->size);
-        mutex_unlock(&dev_priv->drm.struct_mutex);
         if (IS_ERR_OR_NULL(obj)) {
                 err = obj ? PTR_ERR(obj) : -ENOMEM;
                 goto fail;