drm/xe/uapi: Add a comment to each struct

Add a comment to each struct to complete documentation, ensure all
struct appear in the kernel doc, and bind structs to IOCTLs.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: José Roberto de Souza <jose.souza@intel.com>
Acked-by: Mateusz Naklicki <mateusz.naklicki@intel.com>
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

include/uapi/drm/xe_drm.h

@@ -464,7 +464,8 @@ struct drm_xe_query_topology_mask {
 };
 
 /**
- * struct drm_xe_device_query - main structure to query device information
+ * struct drm_xe_device_query - Input of &DRM_IOCTL_XE_DEVICE_QUERY - main
+ * structure to query device information
  *
  * If size is set to 0, the driver fills it with the required size for the
  * requested type of data to query. If size is equal to the required size,
@@ -526,6 +527,10 @@ struct drm_xe_device_query {
 	__u64 reserved[2];
 };
 
+/**
+ * struct drm_xe_gem_create - Input of &DRM_IOCTL_XE_GEM_CREATE - A structure for
+ * gem creation
+ */
 struct drm_xe_gem_create {
 	/** @extensions: Pointer to the first extension struct, if any */
 	__u64 extensions;
@@ -604,6 +609,9 @@ struct drm_xe_gem_create {
 	__u64 reserved[2];
 };
 
+/**
+ * struct drm_xe_gem_mmap_offset - Input of &DRM_IOCTL_XE_GEM_MMAP_OFFSET
+ */
 struct drm_xe_gem_mmap_offset {
 	/** @extensions: Pointer to the first extension struct, if any */
 	__u64 extensions;
@@ -621,7 +629,9 @@ struct drm_xe_gem_mmap_offset {
 	__u64 reserved[2];
 };
 
-/** struct drm_xe_ext_set_property - XE set property extension */
+/**
+ * struct drm_xe_ext_set_property - XE set property extension
+ */
 struct drm_xe_ext_set_property {
 	/** @base: base user extension */
 	struct drm_xe_user_extension base;
@@ -639,6 +649,9 @@ struct drm_xe_ext_set_property {
 	__u64 reserved[2];
 };
 
+/**
+ * struct drm_xe_vm_create - Input of &DRM_IOCTL_XE_VM_CREATE
+ */
 struct drm_xe_vm_create {
 	/** @extensions: Pointer to the first extension struct, if any */
 	__u64 extensions;
@@ -677,6 +690,9 @@ struct drm_xe_vm_create {
 	__u64 reserved[2];
 };
 
+/**
+ * struct drm_xe_vm_destroy - Input of &DRM_IOCTL_XE_VM_DESTROY
+ */
 struct drm_xe_vm_destroy {
 	/** @vm_id: VM ID */
 	__u32 vm_id;
@@ -688,6 +704,9 @@ struct drm_xe_vm_destroy {
 	__u64 reserved[2];
 };
 
+/**
+ * struct drm_xe_vm_bind_op
+ */
 struct drm_xe_vm_bind_op {
 	/** @extensions: Pointer to the first extension struct, if any */
 	__u64 extensions;
@@ -804,6 +823,9 @@ struct drm_xe_vm_bind_op {
 	__u64 reserved[3];
 };
 
+/**
+ * struct drm_xe_vm_bind - Input of &DRM_IOCTL_XE_VM_BIND
+ */
 struct drm_xe_vm_bind {
 	/** @extensions: Pointer to the first extension struct, if any */
 	__u64 extensions;
@@ -862,6 +884,9 @@ struct drm_xe_vm_bind {
 /* Monitor 64MB contiguous region with 2M sub-granularity */
 #define DRM_XE_ACC_GRANULARITY_64M 3
 
+/**
+ * struct drm_xe_exec_queue_create - Input of &DRM_IOCTL_XE_EXEC_QUEUE_CREATE
+ */
 struct drm_xe_exec_queue_create {
 #define DRM_XE_EXEC_QUEUE_EXTENSION_SET_PROPERTY		0
 #define   DRM_XE_EXEC_QUEUE_SET_PROPERTY_PRIORITY		0
@@ -904,6 +929,9 @@ struct drm_xe_exec_queue_create {
 	__u64 reserved[2];
 };
 
+/**
+ * struct drm_xe_exec_queue_get_property - Input of &DRM_IOCTL_XE_EXEC_QUEUE_GET_PROPERTY
+ */
 struct drm_xe_exec_queue_get_property {
 	/** @extensions: Pointer to the first extension struct, if any */
 	__u64 extensions;
@@ -922,6 +950,9 @@ struct drm_xe_exec_queue_get_property {
 	__u64 reserved[2];
 };
 
+/**
+ * struct drm_xe_exec_queue_destroy - Input of &DRM_IOCTL_XE_EXEC_QUEUE_DESTROY
+ */
 struct drm_xe_exec_queue_destroy {
 	/** @exec_queue_id: Exec queue ID */
 	__u32 exec_queue_id;
@@ -933,6 +964,9 @@ struct drm_xe_exec_queue_destroy {
 	__u64 reserved[2];
 };
 
+/**
+ * struct drm_xe_sync
+ */
 struct drm_xe_sync {
 	/** @extensions: Pointer to the first extension struct, if any */
 	__u64 extensions;
@@ -967,6 +1001,9 @@ struct drm_xe_sync {
 	__u64 reserved[2];
 };
 
+/**
+ * struct drm_xe_exec - Input of &DRM_IOCTL_XE_EXEC
+ */
 struct drm_xe_exec {
 	/** @extensions: Pointer to the first extension struct, if any */
 	__u64 extensions;
@@ -1000,7 +1037,7 @@ struct drm_xe_exec {
 };
 
 /**
- * struct drm_xe_wait_user_fence - wait user fence
+ * struct drm_xe_wait_user_fence - Input of &DRM_IOCTL_XE_WAIT_USER_FENCE
  *
  * Wait on user fence, XE will wake-up on every HW engine interrupt in the
  * instances list and check if user fence is complete::