From: Le Ma <le.ma@xxxxxxx> There's no LUT register for second mmhub to convert pasid since it has no ATC. Signed-off-by: Le Ma <le.ma@xxxxxxx> Reviewed-by: Feifei Xu <Feifei.Xu@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index d6aa290d567c..11968fbe0d60 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -488,6 +488,10 @@ static void gmc_v9_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid, struct amdgpu_device *adev = ring->adev; uint32_t reg; + /* Do nothing because there's no lut register for mmhub1. */ + if (ring->funcs->vmhub == AMDGPU_MMHUB_1) + return; + if (ring->funcs->vmhub == AMDGPU_GFXHUB_0) reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid; else -- 2.20.1 _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
