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@@ -8,69 +8,59 @@
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#define __ASM_CTL_REG_H
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#ifdef CONFIG_64BIT
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-
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-#define __ctl_load(array, low, high) ({ \
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- typedef struct { char _[sizeof(array)]; } addrtype; \
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- asm volatile( \
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- " lctlg %1,%2,%0\n" \
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- : : "Q" (*(addrtype *)(&array)), \
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- "i" (low), "i" (high)); \
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- })
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-
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-#define __ctl_store(array, low, high) ({ \
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- typedef struct { char _[sizeof(array)]; } addrtype; \
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- asm volatile( \
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- " stctg %1,%2,%0\n" \
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- : "=Q" (*(addrtype *)(&array)) \
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- : "i" (low), "i" (high)); \
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- })
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-
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-#else /* CONFIG_64BIT */
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-
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-#define __ctl_load(array, low, high) ({ \
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- typedef struct { char _[sizeof(array)]; } addrtype; \
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- asm volatile( \
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- " lctl %1,%2,%0\n" \
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- : : "Q" (*(addrtype *)(&array)), \
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- "i" (low), "i" (high)); \
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-})
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-
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-#define __ctl_store(array, low, high) ({ \
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- typedef struct { char _[sizeof(array)]; } addrtype; \
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- asm volatile( \
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- " stctl %1,%2,%0\n" \
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- : "=Q" (*(addrtype *)(&array)) \
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- : "i" (low), "i" (high)); \
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- })
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-
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-#endif /* CONFIG_64BIT */
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-
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-#define __ctl_set_bit(cr, bit) ({ \
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- unsigned long __dummy; \
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- __ctl_store(__dummy, cr, cr); \
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- __dummy |= 1UL << (bit); \
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- __ctl_load(__dummy, cr, cr); \
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-})
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-
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-#define __ctl_clear_bit(cr, bit) ({ \
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- unsigned long __dummy; \
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- __ctl_store(__dummy, cr, cr); \
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- __dummy &= ~(1UL << (bit)); \
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- __ctl_load(__dummy, cr, cr); \
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-})
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+# define __CTL_LOAD "lctlg"
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+# define __CTL_STORE "stctg"
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+#else
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+# define __CTL_LOAD "lctl"
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+# define __CTL_STORE "stctl"
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+#endif
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+
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+#define __ctl_load(array, low, high) { \
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+ typedef struct { char _[sizeof(array)]; } addrtype; \
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+ \
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+ BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
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+ asm volatile( \
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+ __CTL_LOAD " %1,%2,%0\n" \
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+ : : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high));\
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+}
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+
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+#define __ctl_store(array, low, high) { \
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+ typedef struct { char _[sizeof(array)]; } addrtype; \
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+ \
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+ BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
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+ asm volatile( \
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+ __CTL_STORE " %1,%2,%0\n" \
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+ : "=Q" (*(addrtype *)(&array)) \
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+ : "i" (low), "i" (high)); \
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+}
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+
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+static inline void __ctl_set_bit(unsigned int cr, unsigned int bit)
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+{
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+ unsigned long reg;
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+
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+ __ctl_store(reg, cr, cr);
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+ reg |= 1UL << bit;
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+ __ctl_load(reg, cr, cr);
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+}
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+
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+static inline void __ctl_clear_bit(unsigned int cr, unsigned int bit)
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+{
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+ unsigned long reg;
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+
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+ __ctl_store(reg, cr, cr);
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+ reg &= ~(1UL << bit);
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+ __ctl_load(reg, cr, cr);
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+}
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+
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+void smp_ctl_set_bit(int cr, int bit);
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+void smp_ctl_clear_bit(int cr, int bit);
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#ifdef CONFIG_SMP
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-
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-extern void smp_ctl_set_bit(int cr, int bit);
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-extern void smp_ctl_clear_bit(int cr, int bit);
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-#define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
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-#define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
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-
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+# define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
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+# define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
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#else
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-
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-#define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit)
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-#define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
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-
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-#endif /* CONFIG_SMP */
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+# define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit)
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+# define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
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+#endif
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#endif /* __ASM_CTL_REG_H */
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