drm/amdgpu/mes: keep enforce isolation up to date

Re-send the mes message on resume to make sure the
mes state is up to date.

Fixes: 8521e3c5f058 ("drm/amd/amdgpu: limit single process inside MES")
Acked-by: Srinivasan Shanmugam <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>
Cc: Shaoyun Liu <[e-mail]>
Cc: Srinivasan Shanmugam <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>
(cherry picked from commit 27b791514789844e80da990c456c2465325e0851)

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

···
 	}
 
 	mutex_lock(&adev->enforce_isolation_mutex);
-
 	for (i = 0; i < num_partitions; i++) {
-		if (adev->enforce_isolation[i] && !partition_values[i]) {
+		if (adev->enforce_isolation[i] && !partition_values[i])
 			/* Going from enabled to disabled */
 			amdgpu_vmid_free_reserved(adev, AMDGPU_GFXHUB(i));
-			if (adev->enable_mes && adev->gfx.enable_cleaner_shader)
-				amdgpu_mes_set_enforce_isolation(adev, i, false);
-		} else if (!adev->enforce_isolation[i] && partition_values[i]) {
+		else if (!adev->enforce_isolation[i] && partition_values[i])
 			/* Going from disabled to enabled */
 			amdgpu_vmid_alloc_reserved(adev, AMDGPU_GFXHUB(i));
-			if (adev->enable_mes && adev->gfx.enable_cleaner_shader)
-				amdgpu_mes_set_enforce_isolation(adev, i, true);
-		}
 		adev->enforce_isolation[i] = partition_values[i];
 	}
-
 	mutex_unlock(&adev->enforce_isolation_mutex);
+
+	amdgpu_mes_update_enforce_isolation(adev);
 
 	return count;
 }

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

···
 }
 
 /* Fix me -- node_id is used to identify the correct MES instances in the future */
-int amdgpu_mes_set_enforce_isolation(struct amdgpu_device *adev, uint32_t node_id, bool enable)
+static int amdgpu_mes_set_enforce_isolation(struct amdgpu_device *adev,
+					    uint32_t node_id, bool enable)
 {
 	struct mes_misc_op_input op_input = {0};
 	int r;
···
 		dev_err(adev->dev, "failed to change_config.\n");
 
 error:
+	return r;
+}
+
+int amdgpu_mes_update_enforce_isolation(struct amdgpu_device *adev)
+{
+	int i, r = 0;
+
+	if (adev->enable_mes && adev->gfx.enable_cleaner_shader) {
+		mutex_lock(&adev->enforce_isolation_mutex);
+		for (i = 0; i < (adev->xcp_mgr ? adev->xcp_mgr->num_xcps : 1); i++) {
+			if (adev->enforce_isolation[i])
+				r |= amdgpu_mes_set_enforce_isolation(adev, i, true);
+			else
+				r |= amdgpu_mes_set_enforce_isolation(adev, i, false);
+		}
+		mutex_unlock(&adev->enforce_isolation_mutex);
+	}
 	return r;
 }
 

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

···
 
 bool amdgpu_mes_suspend_resume_all_supported(struct amdgpu_device *adev);
 
-int amdgpu_mes_set_enforce_isolation(struct amdgpu_device *adev, uint32_t node_id, bool enable);
+int amdgpu_mes_update_enforce_isolation(struct amdgpu_device *adev);
 
 #endif /* __AMDGPU_MES_H__ */

drivers/gpu/drm/amd/amdgpu/mes_v11_0.c

···
 		goto failure;
 	}
 
+	r = amdgpu_mes_update_enforce_isolation(adev);
+	if (r)
+		goto failure;
+
 out:
 	/*
 	 * Disable KIQ ring usage from the driver once MES is enabled.

drivers/gpu/drm/amd/amdgpu/mes_v12_0.c

···
 		goto failure;
 	}
 
+	r = amdgpu_mes_update_enforce_isolation(adev);
+	if (r)
+		goto failure;
+
 out:
 	/*
 	 * Disable KIQ ring usage from the driver once MES is enabled.