should use amdgpu_bo_map, otherwise you'll hit NULL
pointer bug if with amdgpu_bo_kptr

Signed-off-by: Monk Liu <[email protected]>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c
index 9d53982..1fb6295a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c
@@ -76,8 +76,10 @@ static int amdgpu_vm_cpu_update(struct 
amdgpu_vm_update_params *p,
 {
        unsigned int i;
        uint64_t value;
+       void *ptr;
 
-       pe += (unsigned long)amdgpu_bo_kptr(bo);
+       amdgpu_bo_kmap(bo, &ptr);
+       pe += (unsigned long)ptr;
 
        trace_amdgpu_vm_set_ptes(pe, addr, count, incr, flags);
 
-- 
2.7.4

_______________________________________________
amd-gfx mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Reply via email to