From: Chris Wilson Date: Wed, 26 Jul 2017 16:00:38 +0000 (+0100) Subject: drm/i915: Pin the pages before acquiring struct_mutex for display X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4d3088c7bd4f137eb51bdff6a27d861d3a6361b8;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git drm/i915: Pin the pages before acquiring struct_mutex for display 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 Reviewed-by: Maarten Lankhorst Link: https://patchwork.freedesktop.org/patch/msgid/20170726160038.29487-3-chris@chris-wilson.co.uk Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 87ae355dc75c..5a89db14320f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -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;