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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright IBM Corp. 1999, 2009
*
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
#ifndef __ASM_S390_CTLREG_H
#define __ASM_S390_CTLREG_H
#include <linux/bits.h>
#define CR0_CLOCK_COMPARATOR_SIGN BIT(63 - 10)
#define CR0_LOW_ADDRESS_PROTECTION BIT(63 - 35)
#define CR0_FETCH_PROTECTION_OVERRIDE BIT(63 - 38)
#define CR0_STORAGE_PROTECTION_OVERRIDE BIT(63 - 39)
#define CR0_EMERGENCY_SIGNAL_SUBMASK BIT(63 - 49)
#define CR0_EXTERNAL_CALL_SUBMASK BIT(63 - 50)
#define CR0_CLOCK_COMPARATOR_SUBMASK BIT(63 - 52)
#define CR0_CPU_TIMER_SUBMASK BIT(63 - 53)
#define CR0_SERVICE_SIGNAL_SUBMASK BIT(63 - 54)
#define CR0_UNUSED_56 BIT(63 - 56)
#define CR0_INTERRUPT_KEY_SUBMASK BIT(63 - 57)
#define CR0_MEASUREMENT_ALERT_SUBMASK BIT(63 - 58)
#define CR14_UNUSED_32 BIT(63 - 32)
#define CR14_UNUSED_33 BIT(63 - 33)
#define CR14_CHANNEL_REPORT_SUBMASK BIT(63 - 35)
#define CR14_RECOVERY_SUBMASK BIT(63 - 36)
#define CR14_DEGRADATION_SUBMASK BIT(63 - 37)
#define CR14_EXTERNAL_DAMAGE_SUBMASK BIT(63 - 38)
#define CR14_WARNING_SUBMASK BIT(63 - 39)
#ifndef __ASSEMBLY__
#include <linux/bug.h>
#define __local_ctl_load(low, high, array) do { \
struct addrtype { \
char _[sizeof(array)]; \
}; \
int _high = high; \
int _low = low; \
int _esize; \
\
_esize = (_high - _low + 1) * sizeof(unsigned long); \
BUILD_BUG_ON(sizeof(struct addrtype) != _esize); \
asm volatile( \
" lctlg %[_low],%[_high],%[_arr]\n" \
: \
: [_arr] "Q" (*(struct addrtype *)(&array)), \
[_low] "i" (low), [_high] "i" (high) \
: "memory"); \
} while (0)
#define __local_ctl_store(low, high, array) do { \
struct addrtype { \
char _[sizeof(array)]; \
}; \
int _high = high; \
int _low = low; \
int _esize; \
\
_esize = (_high - _low + 1) * sizeof(unsigned long); \
BUILD_BUG_ON(sizeof(struct addrtype) != _esize); \
asm volatile( \
" stctg %[_low],%[_high],%[_arr]\n" \
: [_arr] "=Q" (*(struct addrtype *)(&array)) \
: [_low] "i" (low), [_high] "i" (high)); \
} while (0)
static __always_inline void local_ctl_load(unsigned int cr, unsigned long *reg)
{
asm volatile(
" lctlg %[cr],%[cr],%[reg]\n"
:
: [reg] "Q" (*reg), [cr] "i" (cr)
: "memory");
}
static __always_inline void local_ctl_store(unsigned int cr, unsigned long *reg)
{
asm volatile(
" stctg %[cr],%[cr],%[reg]\n"
: [reg] "=Q" (*reg)
: [cr] "i" (cr));
}
static __always_inline void local_ctl_set_bit(unsigned int cr, unsigned int bit)
{
unsigned long reg;
local_ctl_store(cr, ®);
reg |= 1UL << bit;
local_ctl_load(cr, ®);
}
static __always_inline void local_ctl_clear_bit(unsigned int cr, unsigned int bit)
{
unsigned long reg;
local_ctl_store(cr, ®);
reg &= ~(1UL << bit);
local_ctl_load(cr, ®);
}
void system_ctlreg_lock(void);
void system_ctlreg_unlock(void);
void system_ctl_set_clear_bit(unsigned int cr, unsigned int bit, bool set);
static inline void system_ctl_set_bit(unsigned int cr, unsigned int bit)
{
system_ctl_set_clear_bit(cr, bit, true);
}
static inline void system_ctl_clear_bit(unsigned int cr, unsigned int bit)
{
system_ctl_set_clear_bit(cr, bit, false);
}
union ctlreg0 {
unsigned long val;
struct {
unsigned long : 8;
unsigned long tcx : 1; /* Transactional-Execution control */
unsigned long pifo : 1; /* Transactional-Execution Program-
Interruption-Filtering Override */
unsigned long : 3;
unsigned long ccc : 1; /* Cryptography counter control */
unsigned long pec : 1; /* PAI extension control */
unsigned long : 17;
unsigned long : 3;
unsigned long lap : 1; /* Low-address-protection control */
unsigned long : 4;
unsigned long edat : 1; /* Enhanced-DAT-enablement control */
unsigned long : 2;
unsigned long iep : 1; /* Instruction-Execution-Protection */
unsigned long : 1;
unsigned long afp : 1; /* AFP-register control */
unsigned long vx : 1; /* Vector enablement control */
unsigned long : 7;
unsigned long sssm : 1; /* Service signal subclass mask */
unsigned long : 9;
};
};
union ctlreg2 {
unsigned long val;
struct {
unsigned long : 33;
unsigned long ducto : 25;
unsigned long : 1;
unsigned long gse : 1;
unsigned long : 1;
unsigned long tds : 1;
unsigned long tdc : 2;
};
};
union ctlreg5 {
unsigned long val;
struct {
unsigned long : 33;
unsigned long pasteo: 25;
unsigned long : 6;
};
};
union ctlreg15 {
unsigned long val;
struct {
unsigned long lsea : 61;
unsigned long : 3;
};
};
#endif /* __ASSEMBLY__ */
#endif /* __ASM_S390_CTLREG_H */
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