From 0aea5e4aa299c465afafc77883ea2c19475036b1 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 30 Jul 2014 11:49:56 -0400
Subject: [PATCH] drm/radeon: use an intervall tree to manage the VMA v2
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Scales much better than scanning the address range linearly.

v2: store pfn instead of address

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Reading git-format-patch failed