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Rev 873 Rev 883
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    __asm__ volatile ("rdpr %%tpc, %0\n" : "=r" (v));
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    __asm__ volatile ("rdpr %%tpc, %0\n" : "=r" (v));
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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 Trap Level register.
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 *
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 * @return Current value in TL.
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 */
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static inline __u64 tl_read(void)
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{
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    __u64 v;
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    __asm__ volatile ("rdpr %%tl, %0\n" : "=r" (v));
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    return v;
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}
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/** Write Trap Base Address register.
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/** Write Trap Base Address register.
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 *
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 *
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 * @param New value of TBA.
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 * @param New value of TBA.
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 */
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 */