drm/i915/gvt: add VFIO EDID region

[sfrench/cifs-2.6.git] / drivers / gpu / drm / i915 / gvt / mpt.h

diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h
index 67f19992b226f29a13d408be36da8b4820095b13..5d8b8f228d8f29c6834e27e9d6887ddf7e60a951 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/mpt.h
+++ b/drivers/gpu/drm/i915/gvt/mpt.h
@@ -50,11 +50,10 @@
  * Zero on success, negative error code if failed
  */
 static inline int intel_gvt_hypervisor_host_init(struct device *dev,
-                       void *gvt, const void *ops)
+                                                void *gvt, const void *ops)
 {
-       /* optional to provide */
        if (!intel_gvt_host.mpt->host_init)
-               return 0;
+               return -ENODEV;
 
        return intel_gvt_host.mpt->host_init(dev, gvt, ops);
 }
@@ -62,14 +61,13 @@ static inline int intel_gvt_hypervisor_host_init(struct device *dev,
 /**
  * intel_gvt_hypervisor_host_exit - exit GVT-g host side
  */
-static inline void intel_gvt_hypervisor_host_exit(struct device *dev,
-                       void *gvt)
+static inline void intel_gvt_hypervisor_host_exit(struct device *dev)
 {
        /* optional to provide */
        if (!intel_gvt_host.mpt->host_exit)
                return;
 
-       intel_gvt_host.mpt->host_exit(dev, gvt);
+       intel_gvt_host.mpt->host_exit(dev);
 }
 
 /**
@@ -315,6 +313,23 @@ static inline int intel_gvt_hypervisor_set_opregion(struct intel_vgpu *vgpu)
        return intel_gvt_host.mpt->set_opregion(vgpu);
 }
 
+/**
+ * intel_gvt_hypervisor_set_edid - Set EDID region for guest
+ * @vgpu: a vGPU
+ * @port_num: display port number
+ *
+ * Returns:
+ * Zero on success, negative error code if failed.
+ */
+static inline int intel_gvt_hypervisor_set_edid(struct intel_vgpu *vgpu,
+                                               int port_num)
+{
+       if (!intel_gvt_host.mpt->set_edid)
+               return 0;
+
+       return intel_gvt_host.mpt->set_edid(vgpu, port_num);
+}
+
 /**
  * intel_gvt_hypervisor_get_vfio_device - increase vfio device ref count
  * @vgpu: a vGPU
@@ -362,4 +377,7 @@ static inline bool intel_gvt_hypervisor_is_valid_gfn(
        return intel_gvt_host.mpt->is_valid_gfn(vgpu->handle, gfn);
 }
 
+int intel_gvt_register_hypervisor(struct intel_gvt_mpt *);
+void intel_gvt_unregister_hypervisor(void);
+
 #endif /* _GVT_MPT_H_ */