include/asm/ctl_reg.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * Copyright IBM Corp. 1999, 2009
0004  *
0005  * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
0006  */
0007
0008 #ifndef __ASM_CTL_REG_H
0009 #define __ASM_CTL_REG_H
0010
0011 #include <linux/bits.h>
0012
0013 #define CR0_CLOCK_COMPARATOR_SIGN   BIT(63 - 10)
0014 #define CR0_LOW_ADDRESS_PROTECTION  BIT(63 - 35)
0015 #define CR0_FETCH_PROTECTION_OVERRIDE   BIT(63 - 38)
0016 #define CR0_STORAGE_PROTECTION_OVERRIDE BIT(63 - 39)
0017 #define CR0_EMERGENCY_SIGNAL_SUBMASK    BIT(63 - 49)
0018 #define CR0_EXTERNAL_CALL_SUBMASK   BIT(63 - 50)
0019 #define CR0_CLOCK_COMPARATOR_SUBMASK    BIT(63 - 52)
0020 #define CR0_CPU_TIMER_SUBMASK       BIT(63 - 53)
0021 #define CR0_SERVICE_SIGNAL_SUBMASK  BIT(63 - 54)
0022 #define CR0_UNUSED_56           BIT(63 - 56)
0023 #define CR0_INTERRUPT_KEY_SUBMASK   BIT(63 - 57)
0024 #define CR0_MEASUREMENT_ALERT_SUBMASK   BIT(63 - 58)
0025
0026 #define CR14_UNUSED_32          BIT(63 - 32)
0027 #define CR14_UNUSED_33          BIT(63 - 33)
0028 #define CR14_CHANNEL_REPORT_SUBMASK BIT(63 - 35)
0029 #define CR14_RECOVERY_SUBMASK       BIT(63 - 36)
0030 #define CR14_DEGRADATION_SUBMASK    BIT(63 - 37)
0031 #define CR14_EXTERNAL_DAMAGE_SUBMASK    BIT(63 - 38)
0032 #define CR14_WARNING_SUBMASK        BIT(63 - 39)
0033
0034 #ifndef __ASSEMBLY__
0035
0036 #include <linux/bug.h>
0037
0038 #define __ctl_load(array, low, high) do {               \
0039     typedef struct { char _[sizeof(array)]; } addrtype;     \
0040                                     \
0041     BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
0042     asm volatile(                           \
0043         "   lctlg   %1,%2,%0\n"             \
0044         :                           \
0045         : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high)    \
0046         : "memory");                        \
0047 } while (0)
0048
0049 #define __ctl_store(array, low, high) do {              \
0050     typedef struct { char _[sizeof(array)]; } addrtype;     \
0051                                     \
0052     BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
0053     asm volatile(                           \
0054         "   stctg   %1,%2,%0\n"             \
0055         : "=Q" (*(addrtype *)(&array))              \
0056         : "i" (low), "i" (high));               \
0057 } while (0)
0058
0059 static __always_inline void __ctl_set_bit(unsigned int cr, unsigned int bit)
0060 {
0061     unsigned long reg;
0062
0063     __ctl_store(reg, cr, cr);
0064     reg |= 1UL << bit;
0065     __ctl_load(reg, cr, cr);
0066 }
0067
0068 static __always_inline void __ctl_clear_bit(unsigned int cr, unsigned int bit)
0069 {
0070     unsigned long reg;
0071
0072     __ctl_store(reg, cr, cr);
0073     reg &= ~(1UL << bit);
0074     __ctl_load(reg, cr, cr);
0075 }
0076
0077 void smp_ctl_set_clear_bit(int cr, int bit, bool set);
0078
0079 static inline void ctl_set_bit(int cr, int bit)
0080 {
0081     smp_ctl_set_clear_bit(cr, bit, true);
0082 }
0083
0084 static inline void ctl_clear_bit(int cr, int bit)
0085 {
0086     smp_ctl_set_clear_bit(cr, bit, false);
0087 }
0088
0089 union ctlreg0 {
0090     unsigned long val;
0091     struct {
0092         unsigned long      : 8;
0093         unsigned long tcx  : 1; /* Transactional-Execution control */
0094         unsigned long pifo : 1; /* Transactional-Execution Program-
0095                        Interruption-Filtering Override */
0096         unsigned long      : 3;
0097         unsigned long ccc  : 1; /* Cryptography counter control */
0098         unsigned long      : 18;
0099         unsigned long      : 3;
0100         unsigned long lap  : 1; /* Low-address-protection control */
0101         unsigned long      : 4;
0102         unsigned long edat : 1; /* Enhanced-DAT-enablement control */
0103         unsigned long      : 2;
0104         unsigned long iep  : 1; /* Instruction-Execution-Protection */
0105         unsigned long      : 1;
0106         unsigned long afp  : 1; /* AFP-register control */
0107         unsigned long vx   : 1; /* Vector enablement control */
0108         unsigned long      : 7;
0109         unsigned long sssm : 1; /* Service signal subclass mask */
0110         unsigned long      : 9;
0111     };
0112 };
0113
0114 union ctlreg2 {
0115     unsigned long val;
0116     struct {
0117         unsigned long       : 33;
0118         unsigned long ducto : 25;
0119         unsigned long       : 1;
0120         unsigned long gse   : 1;
0121         unsigned long       : 1;
0122         unsigned long tds   : 1;
0123         unsigned long tdc   : 2;
0124     };
0125 };
0126
0127 union ctlreg5 {
0128     unsigned long val;
0129     struct {
0130         unsigned long       : 33;
0131         unsigned long pasteo: 25;
0132         unsigned long       : 6;
0133     };
0134 };
0135
0136 union ctlreg15 {
0137     unsigned long val;
0138     struct {
0139         unsigned long lsea  : 61;
0140         unsigned long       : 3;
0141     };
0142 };
0143
0144 #endif /* __ASSEMBLY__ */
0145 #endif /* __ASM_CTL_REG_H */