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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ctl_reg.h (3800B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Copyright IBM Corp. 1999, 2009
      4 *
      5 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
      6 */
      7
      8#ifndef __ASM_CTL_REG_H
      9#define __ASM_CTL_REG_H
     10
     11#include <linux/bits.h>
     12
     13#define CR0_CLOCK_COMPARATOR_SIGN	BIT(63 - 10)
     14#define CR0_LOW_ADDRESS_PROTECTION	BIT(63 - 35)
     15#define CR0_FETCH_PROTECTION_OVERRIDE	BIT(63 - 38)
     16#define CR0_STORAGE_PROTECTION_OVERRIDE	BIT(63 - 39)
     17#define CR0_EMERGENCY_SIGNAL_SUBMASK	BIT(63 - 49)
     18#define CR0_EXTERNAL_CALL_SUBMASK	BIT(63 - 50)
     19#define CR0_CLOCK_COMPARATOR_SUBMASK	BIT(63 - 52)
     20#define CR0_CPU_TIMER_SUBMASK		BIT(63 - 53)
     21#define CR0_SERVICE_SIGNAL_SUBMASK	BIT(63 - 54)
     22#define CR0_UNUSED_56			BIT(63 - 56)
     23#define CR0_INTERRUPT_KEY_SUBMASK	BIT(63 - 57)
     24#define CR0_MEASUREMENT_ALERT_SUBMASK	BIT(63 - 58)
     25
     26#define CR14_UNUSED_32			BIT(63 - 32)
     27#define CR14_UNUSED_33			BIT(63 - 33)
     28#define CR14_CHANNEL_REPORT_SUBMASK	BIT(63 - 35)
     29#define CR14_RECOVERY_SUBMASK		BIT(63 - 36)
     30#define CR14_DEGRADATION_SUBMASK	BIT(63 - 37)
     31#define CR14_EXTERNAL_DAMAGE_SUBMASK	BIT(63 - 38)
     32#define CR14_WARNING_SUBMASK		BIT(63 - 39)
     33
     34#ifndef __ASSEMBLY__
     35
     36#include <linux/bug.h>
     37
     38#define __ctl_load(array, low, high) do {				\
     39	typedef struct { char _[sizeof(array)]; } addrtype;		\
     40									\
     41	BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
     42	asm volatile(							\
     43		"	lctlg	%1,%2,%0\n"				\
     44		:							\
     45		: "Q" (*(addrtype *)(&array)), "i" (low), "i" (high)	\
     46		: "memory");						\
     47} while (0)
     48
     49#define __ctl_store(array, low, high) do {				\
     50	typedef struct { char _[sizeof(array)]; } addrtype;		\
     51									\
     52	BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
     53	asm volatile(							\
     54		"	stctg	%1,%2,%0\n"				\
     55		: "=Q" (*(addrtype *)(&array))				\
     56		: "i" (low), "i" (high));				\
     57} while (0)
     58
     59static __always_inline void __ctl_set_bit(unsigned int cr, unsigned int bit)
     60{
     61	unsigned long reg;
     62
     63	__ctl_store(reg, cr, cr);
     64	reg |= 1UL << bit;
     65	__ctl_load(reg, cr, cr);
     66}
     67
     68static __always_inline void __ctl_clear_bit(unsigned int cr, unsigned int bit)
     69{
     70	unsigned long reg;
     71
     72	__ctl_store(reg, cr, cr);
     73	reg &= ~(1UL << bit);
     74	__ctl_load(reg, cr, cr);
     75}
     76
     77void smp_ctl_set_clear_bit(int cr, int bit, bool set);
     78
     79static inline void ctl_set_bit(int cr, int bit)
     80{
     81	smp_ctl_set_clear_bit(cr, bit, true);
     82}
     83
     84static inline void ctl_clear_bit(int cr, int bit)
     85{
     86	smp_ctl_set_clear_bit(cr, bit, false);
     87}
     88
     89union ctlreg0 {
     90	unsigned long val;
     91	struct {
     92		unsigned long	   : 8;
     93		unsigned long tcx  : 1;	/* Transactional-Execution control */
     94		unsigned long pifo : 1;	/* Transactional-Execution Program-
     95					   Interruption-Filtering Override */
     96		unsigned long	   : 3;
     97		unsigned long ccc  : 1; /* Cryptography counter control */
     98		unsigned long	   : 18;
     99		unsigned long	   : 3;
    100		unsigned long lap  : 1; /* Low-address-protection control */
    101		unsigned long	   : 4;
    102		unsigned long edat : 1; /* Enhanced-DAT-enablement control */
    103		unsigned long	   : 2;
    104		unsigned long iep  : 1; /* Instruction-Execution-Protection */
    105		unsigned long	   : 1;
    106		unsigned long afp  : 1; /* AFP-register control */
    107		unsigned long vx   : 1; /* Vector enablement control */
    108		unsigned long	   : 7;
    109		unsigned long sssm : 1; /* Service signal subclass mask */
    110		unsigned long	   : 9;
    111	};
    112};
    113
    114union ctlreg2 {
    115	unsigned long val;
    116	struct {
    117		unsigned long	    : 33;
    118		unsigned long ducto : 25;
    119		unsigned long	    : 1;
    120		unsigned long gse   : 1;
    121		unsigned long	    : 1;
    122		unsigned long tds   : 1;
    123		unsigned long tdc   : 2;
    124	};
    125};
    126
    127union ctlreg5 {
    128	unsigned long val;
    129	struct {
    130		unsigned long	    : 33;
    131		unsigned long pasteo: 25;
    132		unsigned long	    : 6;
    133	};
    134};
    135
    136union ctlreg15 {
    137	unsigned long val;
    138	struct {
    139		unsigned long lsea  : 61;
    140		unsigned long	    : 3;
    141	};
    142};
    143
    144#endif /* __ASSEMBLY__ */
    145#endif /* __ASM_CTL_REG_H */