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/const.h> 12 13 #define CR0_CLOCK_COMPARATOR_SIGN _BITUL(63 - 10) 14 #define CR0_EMERGENCY_SIGNAL_SUBMASK _BITUL(63 - 49) 15 #define CR0_EXTERNAL_CALL_SUBMASK _BITUL(63 - 50) 16 #define CR0_CLOCK_COMPARATOR_SUBMASK _BITUL(63 - 52) 17 #define CR0_CPU_TIMER_SUBMASK _BITUL(63 - 53) 18 #define CR0_SERVICE_SIGNAL_SUBMASK _BITUL(63 - 54) 19 #define CR0_UNUSED_56 _BITUL(63 - 56) 20 #define CR0_INTERRUPT_KEY_SUBMASK _BITUL(63 - 57) 21 #define CR0_MEASUREMENT_ALERT_SUBMASK _BITUL(63 - 58) 22 23 #define CR2_GUARDED_STORAGE _BITUL(63 - 59) 24 25 #define CR14_UNUSED_32 _BITUL(63 - 32) 26 #define CR14_UNUSED_33 _BITUL(63 - 33) 27 #define CR14_CHANNEL_REPORT_SUBMASK _BITUL(63 - 35) 28 #define CR14_RECOVERY_SUBMASK _BITUL(63 - 36) 29 #define CR14_DEGRADATION_SUBMASK _BITUL(63 - 37) 30 #define CR14_EXTERNAL_DAMAGE_SUBMASK _BITUL(63 - 38) 31 #define CR14_WARNING_SUBMASK _BITUL(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 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 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 #ifdef CONFIG_SMP 116 # define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit) 117 # define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit) 118 #else 119 # define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit) 120 # define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit) 121 #endif 122 123 #endif /* __ASSEMBLY__ */ 124 #endif /* __ASM_CTL_REG_H */ 125