drm/amdgpu: alloc vm inv engines for every vmhub

There are AMDGPU_MAX_VMHUBS of vmhub in maximum and need to init the
vm_inv_engs for all of them.

In this way, the below error can be ruled out.
[  217.317752] amdgpu 0000:02:00.0: amdgpu: no VM inv eng for ring sdma0
Signed-off-by: Shiwu Zhang <shiwu.zhang@amd.com>
Reviewed-by: Christian Koenig <Christian.Koenig@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -534,22 +534,21 @@ void amdgpu_gmc_ras_fini(struct amdgpu_device *adev)
 	 *                    subject to change when ring number changes
 	 * Engine 17: Gart flushes
 	 */
-#define GFXHUB_FREE_VM_INV_ENGS_BITMAP		0x1FFF3
-#define MMHUB_FREE_VM_INV_ENGS_BITMAP		0x1FFF3
+#define AMDGPU_VMHUB_INV_ENG_BITMAP		0x1FFF3
 
 int amdgpu_gmc_allocate_vm_inv_eng(struct amdgpu_device *adev)
 {
 	struct amdgpu_ring *ring;
-	unsigned vm_inv_engs[AMDGPU_MAX_VMHUBS] =
-		{GFXHUB_FREE_VM_INV_ENGS_BITMAP, MMHUB_FREE_VM_INV_ENGS_BITMAP,
-		GFXHUB_FREE_VM_INV_ENGS_BITMAP};
+	unsigned vm_inv_engs[AMDGPU_MAX_VMHUBS] = {0};
 	unsigned i;
 	unsigned vmhub, inv_eng;
 
-	if (adev->enable_mes) {
+	/* init the vm inv eng for all vmhubs */
+	for_each_set_bit(i, adev->vmhubs_mask, AMDGPU_MAX_VMHUBS) {
+		vm_inv_engs[i] = AMDGPU_VMHUB_INV_ENG_BITMAP;
 		/* reserve engine 5 for firmware */
-		for (vmhub = 0; vmhub < AMDGPU_MAX_VMHUBS; vmhub++)
-			vm_inv_engs[vmhub] &= ~(1 << 5);
+		if (adev->enable_mes)
+			vm_inv_engs[i] &= ~(1 << 5);
 	}
 
 	for (i = 0; i < adev->num_rings; ++i) {