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    __asm__ volatile ("and %%o6, %1, %0\n" : "=r" (v) : "r" (~(STACK_SIZE-1)));
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    __asm__ volatile ("and %%o6, %1, %0\n" : "=r" (v) : "r" (~(STACK_SIZE-1)));
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    return v;
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    return v;
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}
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}
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/** Read Version Register.
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 *
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 * @return Value of VER register.
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 */
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static inline __u64 ver_read(void)
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{
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    __u64 v;
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    __asm__ volatile ("rdpr %%ver, %0\n" : "=r" (v));
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    return v;
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}
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/** Read Trap Base Address register.
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/** Read Trap Base Address register.
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 *
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 *
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 * @return Current value in TBA.
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 * @return Current value in TBA.
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 */
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 */
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static inline __u64 tba_read(void)
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static inline __u64 tba_read(void)