drm/xe/uapi: Move xe_exec after xe_exec_queue

Although the exec ioctl is a very important one, it makes no sense
to explain xe_exec before explaining the exec_queue. So, let's
move this down to help bring a better flow on the documentation
and code readability.

It is important to highlight that this patch is changing all
the ioctl numbers in a non-backward compatible way. However, we
are doing this final uapi clean-up before we submit our first
pull-request to be part of the upstream Kernel. Once we get
there, no other change like this will ever happen and all the
backward compatibility will be respected.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>

include/uapi/drm/xe_drm.h

@@ -103,11 +103,11 @@ struct xe_user_extension {
 #define DRM_XE_VM_CREATE		0x03
 #define DRM_XE_VM_DESTROY		0x04
 #define DRM_XE_VM_BIND			0x05
-#define DRM_XE_EXEC			0x06
-#define DRM_XE_EXEC_QUEUE_CREATE	0x07
-#define DRM_XE_EXEC_QUEUE_DESTROY	0x08
-#define DRM_XE_EXEC_QUEUE_SET_PROPERTY	0x09
-#define DRM_XE_EXEC_QUEUE_GET_PROPERTY	0x0a
+#define DRM_XE_EXEC_QUEUE_CREATE	0x06
+#define DRM_XE_EXEC_QUEUE_DESTROY	0x07
+#define DRM_XE_EXEC_QUEUE_SET_PROPERTY	0x08
+#define DRM_XE_EXEC_QUEUE_GET_PROPERTY	0x09
+#define DRM_XE_EXEC			0x0a
 #define DRM_XE_WAIT_USER_FENCE		0x0b
 /* Must be kept compact -- no holes */
 
@@ -117,11 +117,11 @@ struct xe_user_extension {
 #define DRM_IOCTL_XE_VM_CREATE			DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_VM_CREATE, struct drm_xe_vm_create)
 #define DRM_IOCTL_XE_VM_DESTROY			DRM_IOW(DRM_COMMAND_BASE + DRM_XE_VM_DESTROY, struct drm_xe_vm_destroy)
 #define DRM_IOCTL_XE_VM_BIND			DRM_IOW(DRM_COMMAND_BASE + DRM_XE_VM_BIND, struct drm_xe_vm_bind)
-#define DRM_IOCTL_XE_EXEC			DRM_IOW(DRM_COMMAND_BASE + DRM_XE_EXEC, struct drm_xe_exec)
 #define DRM_IOCTL_XE_EXEC_QUEUE_CREATE		DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_EXEC_QUEUE_CREATE, struct drm_xe_exec_queue_create)
 #define DRM_IOCTL_XE_EXEC_QUEUE_DESTROY		DRM_IOW(DRM_COMMAND_BASE + DRM_XE_EXEC_QUEUE_DESTROY, struct drm_xe_exec_queue_destroy)
 #define DRM_IOCTL_XE_EXEC_QUEUE_SET_PROPERTY	DRM_IOW(DRM_COMMAND_BASE + DRM_XE_EXEC_QUEUE_SET_PROPERTY, struct drm_xe_exec_queue_set_property)
 #define DRM_IOCTL_XE_EXEC_QUEUE_GET_PROPERTY	DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_EXEC_QUEUE_GET_PROPERTY, struct drm_xe_exec_queue_get_property)
+#define DRM_IOCTL_XE_EXEC			DRM_IOW(DRM_COMMAND_BASE + DRM_XE_EXEC, struct drm_xe_exec)
 #define DRM_IOCTL_XE_WAIT_USER_FENCE		DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_WAIT_USER_FENCE, struct drm_xe_wait_user_fence)
 
 /**