Terrence Howard to Ex-Wife -- Want Me to Stay Away? I'LL STAY AWAY

Terrence Howard is waving the white flag in his bitter war with his ex-wife -- agreeing to stay the hell away from her ... at least for the next three years ... after he allegedly beat the crap out of her this summer.

As we reported, Terrence's ex Michelle Ghent obtained a temporary restraining order against Howard in August, after the "Iron Man" actor allegedly roughed her up during a blowout fight in Costa Rica in July.

The temporary order prohibited him from coming within 100 yards of her at all times -- but today, that order was made permanent, this time requiring Howard to stay 300 yards away from Ghent until 2016.

Howard didn't put up a fight either ... agreeing to abide by the terms of the order and pay $14,800 of Michelle's attorney's fees.