staticinlinebool loongson3_cpucfg_emulation_enabled(struct cpuinfo_mips *c)
{ /* All supported cores have non-zero LOONGSON_CFG1 data. */ return c->loongson3_cpucfg_data[0] != 0;
}
staticinline u32 loongson3_cpucfg_read_synthesized(struct cpuinfo_mips *c,
__u64 sel)
{ switch (sel) { case LOONGSON_CFG0: return c->processor_id; case LOONGSON_CFG1: case LOONGSON_CFG2: case LOONGSON_CFG3: return c->loongson3_cpucfg_data[sel - 1]; case LOONGSON_CFG4: case LOONGSON_CFG5: /* CPUCFG selects 4 and 5 are related to the input clock * signal. * * Unimplemented for now.
*/ return 0; case LOONGSON_CFG6: /* CPUCFG select 6 is for the undocumented Safe Extension. */ return 0; case LOONGSON_CFG7: /* CPUCFG select 7 is for the virtualization extension. * We don't know if the two currently known features are * supported on older cores according to the public * documentation, so leave this at zero.
*/ return 0;
}
/* * Return 0 for unrecognized CPUCFG selects, which is real hardware * behavior observed on Loongson 3A R4.
*/ return 0;
} #else staticinlinevoid loongson3_cpucfg_synthesize_data(struct cpuinfo_mips *c)
{
}
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