drm/amdgpu: fix offset calculation in amdgpu_vm_bo_clear_mappings()

commit 5e61b84f9d3ddfba73091f9fbc940caae1c9eb22 upstream.

Offset calculation wasn't correct as start addresses are in pfn
not in bytes.

CC: stable@vger.kernel.org
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index df110afa97bf46c2c83bf1ba422b58335d8d3f2b..d25268fbc0f3d4391cfea7dc87c3aa9236bcf924 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2435,7 +2435,7 @@ int amdgpu_vm_bo_clear_mappings(struct amdgpu_device *adev,
                        after->start = eaddr + 1;
                        after->last = tmp->last;
                        after->offset = tmp->offset;
-                       after->offset += after->start - tmp->start;
+                       after->offset += (after->start - tmp->start) << PAGE_SHIFT;
                        after->flags = tmp->flags;
                        after->bo_va = tmp->bo_va;
                        list_add(&after->list, &tmp->bo_va->invalids);