drm/amdgpu: Don't touch GFX hw during HW fini

For SR-IOV client, driver shouldn't touch the GFX hw during HW
fini, otherwise, gfx will fail to start after rebooting guest os.

Signed-off-by: shaoyunl <Shaoyun.Liu@amd.com>
Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 5259903..6ef0e0d 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4827,6 +4827,10 @@ static int gfx_v8_0_hw_fini(void *handle)
 
        amdgpu_irq_put(adev, &adev->gfx.priv_reg_irq, 0);
        amdgpu_irq_put(adev, &adev->gfx.priv_inst_irq, 0);
+       if (amdgpu_sriov_vf(adev)) {
+               pr_debug("For SRIOV client, shouldn't do anything.\n");
+               return 0;
+       }
        gfx_v8_0_cp_enable(adev, false);
        gfx_v8_0_rlc_stop(adev);
        gfx_v8_0_cp_compute_fini(adev);