Jim Carrey -- Taking Care Of GF's Family After Suicide

Jim Carrey is doing everything he can financially to help out the family of his ex-girlfriend Cathriona White after the 28-year-old committed suicide Monday.

We're told Jim paid for White's entire family to fly from Ireland to Los Angeles and he's paying for their hotel stay as well. Our source says White's family still hasn't made final funeral arrangements but Jim has offered to cover all of those expenses.

A source close to Jim says he's devastated over Cathriona's death and wanted to make sure things were taken care of for her family.