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
__ctl_set_bit(unsigned int cr,unsigned int bit)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
__ctl_clear_bit(unsigned int cr,unsigned int bit)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 */
120