75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_IA64_FPSWA_H
|
|
#define _ASM_IA64_FPSWA_H
|
|
|
|
/*
|
|
* Floating-point Software Assist
|
|
*
|
|
* Copyright (C) 1999 Intel Corporation.
|
|
* Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com>
|
|
* Copyright (C) 1999 Goutham Rao <goutham.rao@intel.com>
|
|
*/
|
|
|
|
typedef struct {
|
|
/* 4 * 128 bits */
|
|
unsigned long fp_lp[4*2];
|
|
} fp_state_low_preserved_t;
|
|
|
|
typedef struct {
|
|
/* 10 * 128 bits */
|
|
unsigned long fp_lv[10 * 2];
|
|
} fp_state_low_volatile_t;
|
|
|
|
typedef struct {
|
|
/* 16 * 128 bits */
|
|
unsigned long fp_hp[16 * 2];
|
|
} fp_state_high_preserved_t;
|
|
|
|
typedef struct {
|
|
/* 96 * 128 bits */
|
|
unsigned long fp_hv[96 * 2];
|
|
} fp_state_high_volatile_t;
|
|
|
|
/**
|
|
* floating point state to be passed to the FP emulation library by
|
|
* the trap/fault handler
|
|
*/
|
|
typedef struct {
|
|
unsigned long bitmask_low64;
|
|
unsigned long bitmask_high64;
|
|
fp_state_low_preserved_t *fp_state_low_preserved;
|
|
fp_state_low_volatile_t *fp_state_low_volatile;
|
|
fp_state_high_preserved_t *fp_state_high_preserved;
|
|
fp_state_high_volatile_t *fp_state_high_volatile;
|
|
} fp_state_t;
|
|
|
|
typedef struct {
|
|
unsigned long status;
|
|
unsigned long err0;
|
|
unsigned long err1;
|
|
unsigned long err2;
|
|
} fpswa_ret_t;
|
|
|
|
/**
|
|
* function header for the Floating Point software assist
|
|
* library. This function is invoked by the Floating point software
|
|
* assist trap/fault handler.
|
|
*/
|
|
typedef fpswa_ret_t (*efi_fpswa_t) (unsigned long trap_type, void *bundle, unsigned long *ipsr,
|
|
unsigned long *fsr, unsigned long *isr, unsigned long *preds,
|
|
unsigned long *ifs, fp_state_t *fp_state);
|
|
|
|
/**
|
|
* This is the FPSWA library interface as defined by EFI. We need to pass a
|
|
* pointer to the interface itself on a call to the assist library
|
|
*/
|
|
typedef struct {
|
|
unsigned int revision;
|
|
unsigned int reserved;
|
|
efi_fpswa_t fpswa;
|
|
} fpswa_interface_t;
|
|
|
|
extern fpswa_interface_t *fpswa_interface;
|
|
|
|
#endif /* _ASM_IA64_FPSWA_H */
|