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 59 static __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 68 static __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 77 void smp_ctl_set_clear_bit(int cr, int bit, bool set); 78 79 static inline void ctl_set_bit(int cr, int bit) 80 { 81 smp_ctl_set_clear_bit(cr, bit, true); 82 } 83 84 static inline void ctl_clear_bit(int cr, int bit) 85 { 86 smp_ctl_set_clear_bit(cr, bit, false); 87 } 88 89 union 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 : 22; 97 unsigned long : 3; 98 unsigned long lap : 1; /* Low-address-protection control */ 99 unsigned long : 4; 100 unsigned long edat : 1; /* Enhanced-DAT-enablement control */ 101 unsigned long : 2; 102 unsigned long iep : 1; /* Instruction-Execution-Protection */ 103 unsigned long : 1; 104 unsigned long afp : 1; /* AFP-register control */ 105 unsigned long vx : 1; /* Vector enablement control */ 106 unsigned long : 7; 107 unsigned long sssm : 1; /* Service signal subclass mask */ 108 unsigned long : 9; 109 }; 110 }; 111 112 union ctlreg2 { 113 unsigned long val; 114 struct { 115 unsigned long : 33; 116 unsigned long ducto : 25; 117 unsigned long : 1; 118 unsigned long gse : 1; 119 unsigned long : 1; 120 unsigned long tds : 1; 121 unsigned long tdc : 2; 122 }; 123 }; 124 125 union ctlreg5 { 126 unsigned long val; 127 struct { 128 unsigned long : 33; 129 unsigned long pasteo: 25; 130 unsigned long : 6; 131 }; 132 }; 133 134 union ctlreg15 { 135 unsigned long val; 136 struct { 137 unsigned long lsea : 61; 138 unsigned long : 3; 139 }; 140 }; 141 142 #endif /* __ASSEMBLY__ */ 143 #endif /* __ASM_CTL_REG_H */ 144