drm/radeon: use an intervall tree to manage the VMA v2
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>
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 31894c8c..b066bb3 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -114,6 +114,7 @@
select POWER_SUPPLY
select HWMON
select BACKLIGHT_CLASS_DEVICE
+ select INTERVAL_TREE
help
Choose this option if you have an ATI Radeon graphics card. There
are both PCI and AGP versions. You don't need to choose this to