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_EMERGENCY_SIGNAL_SUBMASK    BIT(63 - 49)
  15 #define CR0_EXTERNAL_CALL_SUBMASK       BIT(63 - 50)
  16 #define CR0_CLOCK_COMPARATOR_SUBMASK    BIT(63 - 52)
  17 #define CR0_CPU_TIMER_SUBMASK           BIT(63 - 53)
  18 #define CR0_SERVICE_SIGNAL_SUBMASK      BIT(63 - 54)
  19 #define CR0_UNUSED_56                   BIT(63 - 56)
  20 #define CR0_INTERRUPT_KEY_SUBMASK       BIT(63 - 57)
  21 #define CR0_MEASUREMENT_ALERT_SUBMASK   BIT(63 - 58)
  22
  23 #define CR2_GUARDED_STORAGE             BIT(63 - 59)
  24
  25 #define CR14_UNUSED_32                  BIT(63 - 32)
  26 #define CR14_UNUSED_33                  BIT(63 - 33)
  27 #define CR14_CHANNEL_REPORT_SUBMASK     BIT(63 - 35)
  28 #define CR14_RECOVERY_SUBMASK           BIT(63 - 36)
  29 #define CR14_DEGRADATION_SUBMASK        BIT(63 - 37)
  30 #define CR14_EXTERNAL_DAMAGE_SUBMASK    BIT(63 - 38)
  31 #define CR14_WARNING_SUBMASK            BIT(63 - 39)
  32
  33 #ifndef __ASSEMBLY__
  34
  35 #include <linux/bug.h>
  36
  37 #define __ctl_load(array, low, high) do {                               \
  38         typedef struct { char _[sizeof(array)]; } addrtype;             \
  39                                                                         \
  40         BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
  41         asm volatile(                                                   \
  42                 "       lctlg   %1,%2,%0\n"                             \
  43                 :                                                       \
  44                 : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high)    \
  45                 : "memory");                                            \
  46 } while (0)
  47
  48 #define __ctl_store(array, low, high) do {                              \
  49         typedef struct { char _[sizeof(array)]; } addrtype;             \
  50                                                                         \
  51         BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
  52         asm volatile(                                                   \
  53                 "       stctg   %1,%2,%0\n"                             \
  54                 : "=Q" (*(addrtype *)(&array))                          \
  55                 : "i" (low), "i" (high));                               \
  56 } while (0)
  57
  58 static __always_inline void __ctl_set_bit(unsigned int cr, unsigned int bit)
  59 {
  60         unsigned long reg;
  61
  62         __ctl_store(reg, cr, cr);
  63         reg |= 1UL << bit;
  64         __ctl_load(reg, cr, cr);
  65 }
  66
  67 static __always_inline void __ctl_clear_bit(unsigned int cr, unsigned int bit)
  68 {
  69         unsigned long reg;
  70
  71         __ctl_store(reg, cr, cr);
  72         reg &= ~(1UL << bit);
  73         __ctl_load(reg, cr, cr);
  74 }
  75
  76 void smp_ctl_set_bit(int cr, int bit);
  77 void smp_ctl_clear_bit(int cr, int bit);
  78
  79 union ctlreg0 {
  80         unsigned long val;
  81         struct {
  82                 unsigned long      : 8;
  83                 unsigned long tcx  : 1; /* Transactional-Execution control */
  84                 unsigned long pifo : 1; /* Transactional-Execution Program-
  85                                            Interruption-Filtering Override */
  86                 unsigned long      : 22;
  87                 unsigned long      : 3;
  88                 unsigned long lap  : 1; /* Low-address-protection control */
  89                 unsigned long      : 4;
  90                 unsigned long edat : 1; /* Enhanced-DAT-enablement control */
  91                 unsigned long      : 2;
  92                 unsigned long iep  : 1; /* Instruction-Execution-Protection */
  93                 unsigned long      : 1;
  94                 unsigned long afp  : 1; /* AFP-register control */
  95                 unsigned long vx   : 1; /* Vector enablement control */
  96                 unsigned long      : 7;
  97                 unsigned long sssm : 1; /* Service signal subclass mask */
  98                 unsigned long      : 9;
  99         };
 100 };
 101
 102 union ctlreg2 {
 103         unsigned long val;
 104         struct {
 105                 unsigned long       : 33;
 106                 unsigned long ducto : 25;
 107                 unsigned long       : 1;
 108                 unsigned long gse   : 1;
 109                 unsigned long       : 1;
 110                 unsigned long tds   : 1;
 111                 unsigned long tdc   : 2;
 112         };
 113 };
 114
 115 #define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
 116 #define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
 117
 118 #endif /* __ASSEMBLY__ */
 119 #endif /* __ASM_CTL_REG_H */