From 1490434f0da63afc6006411c8829c6a7935a4e7e Mon Sep 17 00:00:00 2001
From: =?utf8?q?Michel=20D=C3=A4nzer?= <michel.daenzer@amd.com>
Date: Tue, 29 Jul 2014 18:47:20 +0900
Subject: [PATCH] drm/radeon: Use write-combined CPU mappings of ring buffers
 with PCIe
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PCI GART doesn't support unsnooped access. AGP GART already uses
write-combined CPU mappings.

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