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
__ctl_set_bit(unsigned int cr,unsigned int bit)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
__ctl_clear_bit(unsigned int cr,unsigned int bit)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 */
136