mirror of https://gitee.com/openkylin/linux.git
drm/amdgpu: skip pasid mapping for second mmhub on Arcturus
There's no LUT register for second mmhub to convert pasid since it has no ATC. Signed-off-by: Le Ma <le.ma@amd.com> Reviewed-by: Feifei Xu <Feifei.Xu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -492,6 +492,10 @@ static void gmc_v9_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
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struct amdgpu_device *adev = ring->adev;
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uint32_t reg;
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/* Do nothing because there's no lut register for mmhub1. */
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if (ring->funcs->vmhub == AMDGPU_MMHUB_1)
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return;
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if (ring->funcs->vmhub == AMDGPU_GFXHUB_0)
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reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid;
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else
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