cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sigcontext.h (2595B)

      1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2/*
      3 * This file is subject to the terms and conditions of the GNU General Public
      4 * License.  See the file "COPYING" in the main directory of this archive
      5 * for more details.
      6 *
      7 * Copyright (C) 1996, 1997, 1999 by Ralf Baechle
      8 * Copyright (C) 1999 Silicon Graphics, Inc.
      9 */
     10#ifndef _UAPI_ASM_SIGCONTEXT_H
     11#define _UAPI_ASM_SIGCONTEXT_H
     12
     13#include <linux/types.h>
     14#include <asm/sgidefs.h>
     15
     16/* scalar FP context was used */
     17#define USED_FP			(1 << 0)
     18
     19/* the value of Status.FR when context was saved */
     20#define USED_FR1		(1 << 1)
     21
     22/* FR=1, but with odd singles in bits 63:32 of preceding even double */
     23#define USED_HYBRID_FPRS	(1 << 2)
     24
     25/* extended context was used, see struct extcontext for details */
     26#define USED_EXTCONTEXT		(1 << 3)
     27
     28#if _MIPS_SIM == _MIPS_SIM_ABI32
     29
     30/*
     31 * Keep this struct definition in sync with the sigcontext fragment
     32 * in arch/mips/kernel/asm-offsets.c
     33 */
     34struct sigcontext {
     35	unsigned int		sc_regmask;	/* Unused */
     36	unsigned int		sc_status;	/* Unused */
     37	unsigned long long	sc_pc;
     38	unsigned long long	sc_regs[32];
     39	unsigned long long	sc_fpregs[32];
     40	unsigned int		sc_acx;		/* Was sc_ownedfp */
     41	unsigned int		sc_fpc_csr;
     42	unsigned int		sc_fpc_eir;	/* Unused */
     43	unsigned int		sc_used_math;
     44	unsigned int		sc_dsp;		/* dsp status, was sc_ssflags */
     45	unsigned long long	sc_mdhi;
     46	unsigned long long	sc_mdlo;
     47	unsigned long		sc_hi1;		/* Was sc_cause */
     48	unsigned long		sc_lo1;		/* Was sc_badvaddr */
     49	unsigned long		sc_hi2;		/* Was sc_sigset[4] */
     50	unsigned long		sc_lo2;
     51	unsigned long		sc_hi3;
     52	unsigned long		sc_lo3;
     53};
     54
     55#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
     56
     57#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32
     58
     59#include <linux/posix_types.h>
     60/*
     61 * Keep this struct definition in sync with the sigcontext fragment
     62 * in arch/mips/kernel/asm-offsets.c
     63 *
     64 * Warning: this structure illdefined with sc_badvaddr being just an unsigned
     65 * int so it was changed to unsigned long in 2.6.0-test1.  This may break
     66 * binary compatibility - no prisoners.
     67 * DSP ASE in 2.6.12-rc4.  Turn sc_mdhi and sc_mdlo into an array of four
     68 * entries, add sc_dsp and sc_reserved for padding.  No prisoners.
     69 */
     70struct sigcontext {
     71	__u64	sc_regs[32];
     72	__u64	sc_fpregs[32];
     73	__u64	sc_mdhi;
     74	__u64	sc_hi1;
     75	__u64	sc_hi2;
     76	__u64	sc_hi3;
     77	__u64	sc_mdlo;
     78	__u64	sc_lo1;
     79	__u64	sc_lo2;
     80	__u64	sc_lo3;
     81	__u64	sc_pc;
     82	__u32	sc_fpc_csr;
     83	__u32	sc_used_math;
     84	__u32	sc_dsp;
     85	__u32	sc_reserved;
     86};
     87
     88
     89#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */
     90
     91#endif /* _UAPI_ASM_SIGCONTEXT_H */