From: Christian König <christian.koenig@amd.com>
Date: Fri, 7 Apr 2017 08:40:04 +0000 (+0200)
Subject: drm/amdgpu: fix "fix 64bit division"
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ecdba5db88f661c8b548a6ba15db26463b465996;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

drm/amdgpu: fix "fix 64bit division"

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>
---

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;
 }