1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright IBM Corp. 1999, 2009
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #ifndef __ASM_CTL_REG_H
9*4882a593Smuzhiyun #define __ASM_CTL_REG_H
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/bits.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #define CR0_CLOCK_COMPARATOR_SIGN BIT(63 - 10)
14*4882a593Smuzhiyun #define CR0_LOW_ADDRESS_PROTECTION BIT(63 - 35)
15*4882a593Smuzhiyun #define CR0_EMERGENCY_SIGNAL_SUBMASK BIT(63 - 49)
16*4882a593Smuzhiyun #define CR0_EXTERNAL_CALL_SUBMASK BIT(63 - 50)
17*4882a593Smuzhiyun #define CR0_CLOCK_COMPARATOR_SUBMASK BIT(63 - 52)
18*4882a593Smuzhiyun #define CR0_CPU_TIMER_SUBMASK BIT(63 - 53)
19*4882a593Smuzhiyun #define CR0_SERVICE_SIGNAL_SUBMASK BIT(63 - 54)
20*4882a593Smuzhiyun #define CR0_UNUSED_56 BIT(63 - 56)
21*4882a593Smuzhiyun #define CR0_INTERRUPT_KEY_SUBMASK BIT(63 - 57)
22*4882a593Smuzhiyun #define CR0_MEASUREMENT_ALERT_SUBMASK BIT(63 - 58)
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun #define CR2_GUARDED_STORAGE BIT(63 - 59)
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun #define CR14_UNUSED_32 BIT(63 - 32)
27*4882a593Smuzhiyun #define CR14_UNUSED_33 BIT(63 - 33)
28*4882a593Smuzhiyun #define CR14_CHANNEL_REPORT_SUBMASK BIT(63 - 35)
29*4882a593Smuzhiyun #define CR14_RECOVERY_SUBMASK BIT(63 - 36)
30*4882a593Smuzhiyun #define CR14_DEGRADATION_SUBMASK BIT(63 - 37)
31*4882a593Smuzhiyun #define CR14_EXTERNAL_DAMAGE_SUBMASK BIT(63 - 38)
32*4882a593Smuzhiyun #define CR14_WARNING_SUBMASK BIT(63 - 39)
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun #ifndef __ASSEMBLY__
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun #include <linux/bug.h>
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun #define __ctl_load(array, low, high) do { \
39*4882a593Smuzhiyun typedef struct { char _[sizeof(array)]; } addrtype; \
40*4882a593Smuzhiyun \
41*4882a593Smuzhiyun BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
42*4882a593Smuzhiyun asm volatile( \
43*4882a593Smuzhiyun " lctlg %1,%2,%0\n" \
44*4882a593Smuzhiyun : \
45*4882a593Smuzhiyun : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high) \
46*4882a593Smuzhiyun : "memory"); \
47*4882a593Smuzhiyun } while (0)
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun #define __ctl_store(array, low, high) do { \
50*4882a593Smuzhiyun typedef struct { char _[sizeof(array)]; } addrtype; \
51*4882a593Smuzhiyun \
52*4882a593Smuzhiyun BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
53*4882a593Smuzhiyun asm volatile( \
54*4882a593Smuzhiyun " stctg %1,%2,%0\n" \
55*4882a593Smuzhiyun : "=Q" (*(addrtype *)(&array)) \
56*4882a593Smuzhiyun : "i" (low), "i" (high)); \
57*4882a593Smuzhiyun } while (0)
58*4882a593Smuzhiyun
__ctl_set_bit(unsigned int cr,unsigned int bit)59*4882a593Smuzhiyun static __always_inline void __ctl_set_bit(unsigned int cr, unsigned int bit)
60*4882a593Smuzhiyun {
61*4882a593Smuzhiyun unsigned long reg;
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun __ctl_store(reg, cr, cr);
64*4882a593Smuzhiyun reg |= 1UL << bit;
65*4882a593Smuzhiyun __ctl_load(reg, cr, cr);
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun
__ctl_clear_bit(unsigned int cr,unsigned int bit)68*4882a593Smuzhiyun static __always_inline void __ctl_clear_bit(unsigned int cr, unsigned int bit)
69*4882a593Smuzhiyun {
70*4882a593Smuzhiyun unsigned long reg;
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun __ctl_store(reg, cr, cr);
73*4882a593Smuzhiyun reg &= ~(1UL << bit);
74*4882a593Smuzhiyun __ctl_load(reg, cr, cr);
75*4882a593Smuzhiyun }
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun void smp_ctl_set_bit(int cr, int bit);
78*4882a593Smuzhiyun void smp_ctl_clear_bit(int cr, int bit);
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun union ctlreg0 {
81*4882a593Smuzhiyun unsigned long val;
82*4882a593Smuzhiyun struct {
83*4882a593Smuzhiyun unsigned long : 8;
84*4882a593Smuzhiyun unsigned long tcx : 1; /* Transactional-Execution control */
85*4882a593Smuzhiyun unsigned long pifo : 1; /* Transactional-Execution Program-
86*4882a593Smuzhiyun Interruption-Filtering Override */
87*4882a593Smuzhiyun unsigned long : 22;
88*4882a593Smuzhiyun unsigned long : 3;
89*4882a593Smuzhiyun unsigned long lap : 1; /* Low-address-protection control */
90*4882a593Smuzhiyun unsigned long : 4;
91*4882a593Smuzhiyun unsigned long edat : 1; /* Enhanced-DAT-enablement control */
92*4882a593Smuzhiyun unsigned long : 2;
93*4882a593Smuzhiyun unsigned long iep : 1; /* Instruction-Execution-Protection */
94*4882a593Smuzhiyun unsigned long : 1;
95*4882a593Smuzhiyun unsigned long afp : 1; /* AFP-register control */
96*4882a593Smuzhiyun unsigned long vx : 1; /* Vector enablement control */
97*4882a593Smuzhiyun unsigned long : 7;
98*4882a593Smuzhiyun unsigned long sssm : 1; /* Service signal subclass mask */
99*4882a593Smuzhiyun unsigned long : 9;
100*4882a593Smuzhiyun };
101*4882a593Smuzhiyun };
102*4882a593Smuzhiyun
103*4882a593Smuzhiyun union ctlreg2 {
104*4882a593Smuzhiyun unsigned long val;
105*4882a593Smuzhiyun struct {
106*4882a593Smuzhiyun unsigned long : 33;
107*4882a593Smuzhiyun unsigned long ducto : 25;
108*4882a593Smuzhiyun unsigned long : 1;
109*4882a593Smuzhiyun unsigned long gse : 1;
110*4882a593Smuzhiyun unsigned long : 1;
111*4882a593Smuzhiyun unsigned long tds : 1;
112*4882a593Smuzhiyun unsigned long tdc : 2;
113*4882a593Smuzhiyun };
114*4882a593Smuzhiyun };
115*4882a593Smuzhiyun
116*4882a593Smuzhiyun #define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
117*4882a593Smuzhiyun #define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
118*4882a593Smuzhiyun
119*4882a593Smuzhiyun #endif /* __ASSEMBLY__ */
120*4882a593Smuzhiyun #endif /* __ASM_CTL_REG_H */
121