Linux Audio

Check our new training course

Loading...
Note: File does not exist in v6.8.
 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_IA64_FPSWA_H
 3#define _ASM_IA64_FPSWA_H
 4
 5/*
 6 * Floating-point Software Assist
 7 *
 8 * Copyright (C) 1999 Intel Corporation.
 9 * Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com>
10 * Copyright (C) 1999 Goutham Rao <goutham.rao@intel.com>
11 */
12
13typedef struct {
14	/* 4 * 128 bits */
15	unsigned long fp_lp[4*2];
16} fp_state_low_preserved_t;
17
18typedef struct {
19	/* 10 * 128 bits */
20	unsigned long fp_lv[10 * 2];
21} fp_state_low_volatile_t;
22
23typedef	struct {
24	/* 16 * 128 bits */
25	unsigned long fp_hp[16 * 2];
26} fp_state_high_preserved_t;
27
28typedef struct {
29	/* 96 * 128 bits */
30	unsigned long fp_hv[96 * 2];
31} fp_state_high_volatile_t;
32
33/**
34 * floating point state to be passed to the FP emulation library by
35 * the trap/fault handler
36 */
37typedef struct {
38	unsigned long			bitmask_low64;
39	unsigned long			bitmask_high64;
40	fp_state_low_preserved_t	*fp_state_low_preserved;
41	fp_state_low_volatile_t		*fp_state_low_volatile;
42	fp_state_high_preserved_t	*fp_state_high_preserved;
43	fp_state_high_volatile_t	*fp_state_high_volatile;
44} fp_state_t;
45
46typedef struct {
47	unsigned long status;
48	unsigned long err0;
49	unsigned long err1;
50	unsigned long err2;
51} fpswa_ret_t;
52
53/**
54 * function header for the Floating Point software assist
55 * library. This function is invoked by the Floating point software
56 * assist trap/fault handler.
57 */
58typedef fpswa_ret_t (*efi_fpswa_t) (unsigned long trap_type, void *bundle, unsigned long *ipsr,
59				    unsigned long *fsr, unsigned long *isr, unsigned long *preds,
60				    unsigned long *ifs, fp_state_t *fp_state);
61
62/**
63 * This is the FPSWA library interface as defined by EFI.  We need to pass a 
64 * pointer to the interface itself on a call to the assist library
65 */
66typedef struct {
67	unsigned int	 revision;
68	unsigned int	 reserved;
69	efi_fpswa_t	 fpswa;
70} fpswa_interface_t;
71
72extern fpswa_interface_t *fpswa_interface;
73
74#endif /* _ASM_IA64_FPSWA_H */