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tpidr_el1是启动时每个核写入的值么？
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#ifdef RT_USING_SMP8 T4 k' J( t) L5 o9 ~! B
/* The more common mpidr_el1 table, redefine it in BSP if it is in other cases */2 L8 @1 T+ R' c4 L' \# K8 Z, P
RT_WEAK rt_uint64_t rt_cpu_mpidr_early[] =5 k* M* I5 d% d
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[0] = 0x80000000,
% |5 U- F: L" j, n[1] = 0x80000001,2 x: W6 J" V8 n9 o3 L2 j
[2] = 0x80000002,
4 T/ U1 T Q d8 |$ x h' a5 t1 V[3] = 0x80000003,, y1 h6 B3 k8 r ?; l
[4] = 0x80000004,
9 q9 W/ A: a. N s$ B[5] = 0x80000005,8 E7 z8 j3 h$ f
[6] = 0x80000006,% H: C0 @) z1 q" b6 b
[7] = 0x80000007,4 k3 `; t% G) ^6 L) T( O; ?, S
[RT_CPUS_NR] = 0
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#endif
6 A8 M+ ]' W: p/ O Rint rt_hw_cpu_id(void); [- [# K+ a2 P+ |) e1 b3 |
{
( \7 Q, X3 i6 J$ Wrt_base_t value;
2 g8 q5 P: {5 q7 A1 W; ?, Uasm volatile ("mrs %0, tpidr_el1":"=r"(value));3 x1 Z8 r- v6 o1 S3 J, h L
return value;* W% h! t3 }; L/ J# b7 v
}
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发表于 2022-8-4 13:17
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支持！
反对！