[PATCH 16/18] drm/amdgpu: fix entries index calculation

Chunming Zhou David1.Zhou at amd.com
Fri Mar 24 03:16:55 UTC 2017


Change-Id: I3e7eabc3576af4265f8cf58187ebe6cc62503ac6
Signed-off-by: Chunming Zhou <David1.Zhou at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 9721552..8ccc6a4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1462,8 +1462,8 @@ static int amdgpu_vm_alloc_levels(struct amdgpu_device *adev,
 		memset(parent->entries, 0 , sizeof(struct amdgpu_vm_pt));
 	}
 
-	from = saddr >> shift;
-	to = eaddr >> shift;
+	from = (saddr >> shift) % amdgpu_vm_num_entries(adev, level);
+	to = (eaddr >> shift) % amdgpu_vm_num_entries(adev, level);
 
 	if (to > parent->last_entry_used)
 		parent->last_entry_used = to;
-- 
1.9.1



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