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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emulated_ops.h (2072B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 *  Copyright 2007 Sony Corporation
      4 */
      5
      6#ifndef _ASM_POWERPC_EMULATED_OPS_H
      7#define _ASM_POWERPC_EMULATED_OPS_H
      8
      9#include <linux/atomic.h>
     10#include <linux/perf_event.h>
     11
     12
     13#ifdef CONFIG_PPC_EMULATED_STATS
     14
     15struct ppc_emulated_entry {
     16	const char *name;
     17	atomic_t val;
     18};
     19
     20extern struct ppc_emulated {
     21#ifdef CONFIG_ALTIVEC
     22	struct ppc_emulated_entry altivec;
     23#endif
     24	struct ppc_emulated_entry dcba;
     25	struct ppc_emulated_entry dcbz;
     26	struct ppc_emulated_entry fp_pair;
     27	struct ppc_emulated_entry isel;
     28	struct ppc_emulated_entry mcrxr;
     29	struct ppc_emulated_entry mfpvr;
     30	struct ppc_emulated_entry multiple;
     31	struct ppc_emulated_entry popcntb;
     32	struct ppc_emulated_entry spe;
     33	struct ppc_emulated_entry string;
     34	struct ppc_emulated_entry sync;
     35	struct ppc_emulated_entry unaligned;
     36#ifdef CONFIG_MATH_EMULATION
     37	struct ppc_emulated_entry math;
     38#endif
     39#ifdef CONFIG_VSX
     40	struct ppc_emulated_entry vsx;
     41#endif
     42#ifdef CONFIG_PPC64
     43	struct ppc_emulated_entry mfdscr;
     44	struct ppc_emulated_entry mtdscr;
     45	struct ppc_emulated_entry lq_stq;
     46	struct ppc_emulated_entry lxvw4x;
     47	struct ppc_emulated_entry lxvh8x;
     48	struct ppc_emulated_entry lxvd2x;
     49	struct ppc_emulated_entry lxvb16x;
     50#endif
     51} ppc_emulated;
     52
     53extern u32 ppc_warn_emulated;
     54
     55extern void ppc_warn_emulated_print(const char *type);
     56
     57#define __PPC_WARN_EMULATED(type)					 \
     58	do {								 \
     59		atomic_inc(&ppc_emulated.type.val);			 \
     60		if (ppc_warn_emulated)					 \
     61			ppc_warn_emulated_print(ppc_emulated.type.name); \
     62	} while (0)
     63
     64#else /* !CONFIG_PPC_EMULATED_STATS */
     65
     66#define __PPC_WARN_EMULATED(type)	do { } while (0)
     67
     68#endif /* !CONFIG_PPC_EMULATED_STATS */
     69
     70#define PPC_WARN_EMULATED(type, regs)					\
     71	do {								\
     72		perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,		\
     73			1, regs, 0);					\
     74		__PPC_WARN_EMULATED(type);				\
     75	} while (0)
     76
     77#define PPC_WARN_ALIGNMENT(type, regs)					\
     78	do {								\
     79		perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,		\
     80			1, regs, regs->dar);				\
     81		__PPC_WARN_EMULATED(type);				\
     82	} while (0)
     83
     84#endif /* _ASM_POWERPC_EMULATED_OPS_H */