From ecdba5db88f661c8b548a6ba15db26463b465996 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Fri, 7 Apr 2017 10:40:04 +0200
Subject: [PATCH] drm/amdgpu: fix "fix 64bit division"
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The offset must be 64bit and add back the accidential dropped line.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 7e993259c2e9..35d53a0d9ba6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -554,6 +554,7 @@ static unsigned long amdgpu_ttm_io_mem_pfn(struct ttm_buffer_object *bo,
 	uint64_t offset = page_offset;
 
 	page_offset = do_div(offset, size);
+	mm += offset;
 	return (bo->mem.bus.base >> PAGE_SHIFT) + mm->start + page_offset;
 }
 
-- 
2.20.1