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Rev 2927 Rev 2955
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#define CS_ENTER_BARRIER()  asm volatile ("" ::: "memory")
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#define CS_ENTER_BARRIER()  asm volatile ("" ::: "memory")
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#define CS_LEAVE_BARRIER()  asm volatile ("" ::: "memory")
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#define CS_LEAVE_BARRIER()  asm volatile ("" ::: "memory")
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static inline void cpuid_serialization(void)
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static inline void cpuid_serialization(void)
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{
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{
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#ifndef __PIC__
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    asm volatile (
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    asm volatile (
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        "xorl %%eax, %%eax\n"
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        "xorl %%eax, %%eax\n"
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        "cpuid\n"
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        "cpuid\n"
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        ::: "eax", "ebx", "ecx", "edx", "memory"
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        ::: "eax", "ebx", "ecx", "edx", "memory"
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    );
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    );
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#else
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    /* Must not clobber PIC register ebx */
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    asm volatile (
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        "movl %%ebx, %%esi\n"
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        "xorl %%eax, %%eax\n"
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        "cpuid\n"
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        "movl %%esi, %%ebx\n"
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        ::: "eax", "ecx", "edx", "esi", "memory"
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    );
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#endif
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}
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}
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#ifdef CONFIG_FENCES_P4
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#ifdef CONFIG_FENCES_P4
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#   define memory_barrier()     asm volatile ("mfence\n" ::: "memory")
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#   define memory_barrier()     asm volatile ("mfence\n" ::: "memory")
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#   define read_barrier()       asm volatile ("lfence\n" ::: "memory")
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#   define read_barrier()       asm volatile ("lfence\n" ::: "memory")