diff options
| author | Christian König <christian.koenig@amd.com> | 2019-03-18 11:09:54 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-03-19 14:01:42 -0500 |
| commit | 72464382fc2d3673eb51f21a57f2c0a320c1552f (patch) | |
| tree | f6d4fddb3db197f29301926c3d0f7b52c6d4ff29 | |
| parent | 39bbd3310ec304a7b695240c6791893a88ec9729 (diff) | |
| download | linux-72464382fc2d3673eb51f21a57f2c0a320c1552f.tar.bz2 | |
drm/amdgpu: fix invalid use of change_bit
We only need to clear the bit in a 32bit integer.
This fixes a crah on ARM64 and PPC64LE caused by
"drm/amdgpu: update the vm invalidation engine layout V2"
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 600259b4e291..2fe8397241ea 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -742,7 +742,7 @@ static int gmc_v9_0_allocate_vm_inv_eng(struct amdgpu_device *adev) } ring->vm_inv_eng = inv_eng - 1; - change_bit(inv_eng - 1, (unsigned long *)(&vm_inv_engs[vmhub])); + vm_inv_engs[vmhub] &= ~(1 << ring->vm_inv_eng); dev_info(adev->dev, "ring %s uses VM inv eng %u on hub %u\n", ring->name, ring->vm_inv_eng, ring->funcs->vmhub); |