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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>
This commit is contained in:
Christian König 2019-03-18 11:09:54 +01:00 committed by Alex Deucher
parent 39bbd3310e
commit 72464382fc
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
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@ -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);