Smoked Pork Loin

1/2 cup brown sugar
1 cup white sugar
1 cup paprika
1/4 cup garlic powder
1/4 cup coarse salt
2 tablespoons chili powder
2 teaspoons cayenne pepper
4 teaspoons black pepper
2 teaspoons dried oregano or Italian seasoning
2 teaspoons cumin

Coat all sides of tenderloin and smoke at 225 until internal temp reaches 160.