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/*
* Copyright IBM Corp. 1999, 2009
*
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
#ifndef __ASM_CTL_REG_H
#define __ASM_CTL_REG_H
#ifdef CONFIG_64BIT
#define __ctl_load(array, low, high) ({ \
typedef struct { char _[sizeof(array)]; } addrtype; \
asm volatile( \
" lctlg %1,%2,%0\n" \
: : "Q" (*(addrtype *)(&array)), \
"i" (low), "i" (high)); \
})
#define __ctl_store(array, low, high) ({ \
typedef struct { char _[sizeof(array)]; } addrtype; \
asm volatile( \
" stctg %1,%2,%0\n" \
: "=Q" (*(addrtype *)(&array)) \
: "i" (low), "i" (high)); \
})
#else /* CONFIG_64BIT */
#define __ctl_load(array, low, high) ({ \
typedef struct { char _[sizeof(array)]; } addrtype; \
asm volatile( \
" lctl %1,%2,%0\n" \
: : "Q" (*(addrtype *)(&array)), \
"i" (low), "i" (high)); \
})
#define __ctl_store(array, low, high) ({ \
typedef struct { char _[sizeof(array)]; } addrtype; \
asm volatile( \
" stctl %1,%2,%0\n" \
: "=Q" (*(addrtype *)(&array)) \
: "i" (low), "i" (high)); \
})
#endif /* CONFIG_64BIT */
#define __ctl_set_bit(cr, bit) ({ \
unsigned long __dummy; \
__ctl_store(__dummy, cr, cr); \
__dummy |= 1UL << (bit); \
__ctl_load(__dummy, cr, cr); \
})
#define __ctl_clear_bit(cr, bit) ({ \
unsigned long __dummy; \
__ctl_store(__dummy, cr, cr); \
__dummy &= ~(1UL << (bit)); \
__ctl_load(__dummy, cr, cr); \
})
#ifdef CONFIG_SMP
extern void smp_ctl_set_bit(int cr, int bit);
extern void smp_ctl_clear_bit(int cr, int bit);
#define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
#define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
#else
#define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit)
#define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
#endif /* CONFIG_SMP */
#endif /* __ASM_CTL_REG_H */