LXR linux/arch/s390/include/asm/ctl

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