Lines Matching +full:per +full:- +full:context

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3  * Copyright 2016-17 IBM Corp.
36  *	Hypervisor Window Context (HVWC) of size VAS_HVWC_SIZE bytes
38  *	OS/User Window Context (UWC) of size VAS_UWC_SIZE bytes.
40  * A window context can be viewed as a set of 64-bit registers. The settings
56  *	/proc/device-tree/vasm@.../reg
69  * As mentioned, a window context is used to "configure" a window. Besides
79  * (again, see vas_probe() for ->paste_base_addr and ->paste_win_id_shift).
85  * NOTE: In the initial version, senders can only in-kernel drivers/threads.
86  *	 Support for user space threads will be added in follow-on patches.
96  * Hypervisor and OS/USer Window Context sizes
102  * Initial per-process credits.
103  * Max send window credits:    4K-1 (12-bits in VAS_TX_WCRED)
105  * TODO: Needs tuning for per-process credits
107 #define VAS_TX_WCREDS_MAX		((4 << 10) - 1)
111  * VAS Window Context Register Offsets and bitmasks.
261  *	- the register's short name in string form ("LPID"), and
262  *	- the name of the macro (eg: VAS_LPID_OFFSET), defining the
263  *	  register's offset in the window context
313  * One per instance of VAS. Each instance will have a separate set of
314  * receive windows, one per coprocessor type.
316  * See also function header of set_vinst_win() for details on ->windows[]
317  * and ->rxwin[] tables.
349  * In-kernel state a VAS window on PowerNV. One per window.
358 	void *hvwc_map;		/* HV window context */
359 	void *uwc_map;		/* OS/User window context */
371  * Container for the hardware state of a window. One per-window.
373  * A VAS Window context is a 512-byte area in the hardware that contains
374  * a set of 64-bit registers. Individual bit-fields in these registers
376  * is a container for the register fields in the window context.
438 	return pid_vnr(window->task_ref.pid);  in vas_window_pid()
446 				win->tx_win ? "Tx" : "Rx", win->vas_win.winid,  in vas_log_write()
455 	regptr = win->uwc_map + reg;  in write_uwc_reg()
466 	regptr = win->hvwc_map + reg;  in write_hvwc_reg()
475 	return in_be64(win->hvwc_map+reg);  in read_hvwc_reg()
490 	return ((u32)winid | (vasid << (31 - 7)));  in encode_pswid()
496 		*vasid = pswid >> (31 - 7) & 0xFF;  in decode_pswid()