drm/amdgpu:introduce new flag to identify VM domain for cntx_ctrl

To determine whether the context uses GPUVM or not.
Signed-off-by: NMonk Liu <Monk.Liu@amd.com>
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -950,6 +950,7 @@ struct amdgpu_cs_parser {
 #define AMDGPU_PREAMBLE_IB_PRESENT          (1 << 0) /* bit set means command submit involves a preamble IB */
 #define AMDGPU_PREAMBLE_IB_PRESENT_FIRST    (1 << 1) /* bit set means preamble IB is first presented in belonging context */
 #define AMDGPU_HAVE_CTX_SWITCH              (1 << 2) /* bit set means context switch occured */
+#define AMDGPU_VM_DOMAIN                    (1 << 3) /* bit set means in virtual memory context */
 
 struct amdgpu_job {
 	struct amd_sched_job    base;

drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c

@@ -184,6 +184,9 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
 		if (need_ctx_switch)
 			status |= AMDGPU_HAVE_CTX_SWITCH;
 		status |= job->preamble_status;
+
+		if (vm)
+			status |= AMDGPU_VM_DOMAIN;
 		amdgpu_ring_emit_cntxcntl(ring, status);
 	}