Set vm_manager.spm_vmid to the top GFXHUB VMID so the SPM reservation path hands out a fixed, isolated VMID on gfx11 instead of borrowing one from the graphics pool.
Signed-off-by: Sunil Khatri <[email protected]> Reviewed-by: Christian König <[email protected]> --- drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c index 301ffb89c9672..709c3d1b99980 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c @@ -856,6 +856,10 @@ static int gmc_v11_0_sw_init(struct amdgpu_ip_block *ip_block) * amdkfd/MES user queues will use VMIDs 8-15 */ last_kq_vmid = adev->gfx.disable_kq ? 0 : 7; + + /* Reserve the last VMID for SPM */ + adev->vm_manager.spm_vmid = AMDGPU_NUM_VMID - 1; + amdgpu_vmid_mgr_set_vmid_mask(adev, GENMASK(last_kq_vmid, 1), GENMASK(AMDGPU_NUM_VMID - 1, 1)); -- 2.34.1
