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Diffstat (limited to 'drivers/gpu/drm/i915/intel_drv.h')
-rw-r--r--drivers/gpu/drm/i915/intel_drv.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 07ce046..ba71522 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -35,6 +35,9 @@
#include <drm/drm_fb_helper.h>
#include <drm/drm_dp_mst_helper.h>
+#define DIV_ROUND_CLOSEST_ULL(ll, d) \
+({ unsigned long long _tmp = (ll)+(d)/2; do_div(_tmp, d); _tmp; })
+
/**
* _wait_for - magic (register) wait macro
*
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