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drm/i915: Pin the pages before acquiring struct_mutex for display

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Since we don't need the struct_mutex to acquire the object's pages, call
i915_gem_object_pin_pages() before we bind the object into the GGTT.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170726160038.29487-3-chris@chris-wilson.co.uk
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2017-07-26 17:00:38 +01:00 committed by Daniel Vetter
parent 6ea1d55d31
commit 4d3088c7bd
1 changed files with 8 additions and 1 deletions
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9
drivers/gpu/drm/i915/intel_display.c
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@ -12432,10 +12432,16 @@ intel_prepare_plane_fb(struct drm_plane *plane,
if (!obj)
return 0;
ret = mutex_lock_interruptible(&dev_priv->drm.struct_mutex);
ret = i915_gem_object_pin_pages(obj);
if (ret)
return ret;
ret = mutex_lock_interruptible(&dev_priv->drm.struct_mutex);
if (ret) {
i915_gem_object_unpin_pages(obj);
return ret;
}
if (plane->type == DRM_PLANE_TYPE_CURSOR &&
INTEL_INFO(dev_priv)->cursor_needs_physical) {
const int align = intel_cursor_alignment(dev_priv);
@ -12454,6 +12460,7 @@ intel_prepare_plane_fb(struct drm_plane *plane,
i915_gem_object_wait_priority(obj, 0, I915_PRIORITY_DISPLAY);
mutex_unlock(&dev_priv->drm.struct_mutex);
i915_gem_object_unpin_pages(obj);
if (ret)
return ret;