include/asm/vas.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3  * Copyright 2016-17 IBM Corp.
11 #include <uapi/asm/vas-api.h>
39 /* Window is closed due to migration */
46 #define MASK_LSH(m)            (__builtin_ffsl(m) - 1)
51  * Co-processor Engine type.
103 	put_pid(ref->pid);  in put_vas_user_win_ref()
104 	put_pid(ref->tgid);  in put_vas_user_win_ref()
105 	if (ref->mm)  in put_vas_user_win_ref()
106 		mmdrop(ref->mm);  in put_vas_user_win_ref()
111 	mm_context_add_vas_window(ref->mm);  in vas_user_win_add_mm_context()
120 	 * current->mm->context.vas_windows).  in vas_user_win_add_mm_context()
126  * Receive window attributes specified by the (in-kernel) owner of window.
156  * Window attributes specified by the in-kernel owner of a send window.
183  * Return the VAS id or -1 if no matching vasid is found.
203  * Helper to initialize send window attributes to defaults for an NX window.
209  * Open a VAS send window for the instance of VAS identified by @vasid
210  * and the co-processor type @cop. Use @attr to initialize attributes
216  * Return a handle to the send window or ERR_PTR() on error.
222  * Close the send or receive window identified by @win. For receive windows
223  * return -EAGAIN if there are active send windows attached to this receive
229  * Copy the co-processor request block (CRB) @crb into the local L2 cache.
280  * which can be used to send / receive requests directly to cooprcessor.