arch/s390/include/asm/ctl_reg.h

   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
  57 static __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
  66 static __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
  75 void smp_ctl_set_bit(int cr, int bit);
  76 void smp_ctl_clear_bit(int cr, int bit);
  77
  78 union 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
 101 union 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
 114 union ctlreg5 {
 115         unsigned long val;
 116         struct {
 117                 unsigned long       : 33;
 118                 unsigned long pasteo: 25;
 119                 unsigned long       : 6;
 120         };
 121 };
 122
 123 union 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 */