pussuw commented on pull request #5782:
URL: https://github.com/apache/incubator-nuttx/pull/5782#issuecomment-1081782547
@xiaoxiang781216 This patch is getting so massive that I propose I remove
the SBI part again so we can get the other parts merged.
What I propose is:
- Remove the SBI implementation and try to make handling of the timer as is
per the RISC-V SBI spec. If this fails we can always use what I have now
- Remove the wrapper functions, and introduce them in the next patch
```
/* RISC-V SBI wrappers
******************************************************/
#ifdef CONFIG_ARCH_USE_S_MODE
void riscv_sbi_ack_timer(void);
uintptr_t riscv_sbi_mhartid(void);
#endif
```
- Leave a warning about missing functionality into:
```
uintptr_t riscv_mhartid(void)
{
#ifdef CONFIG_ARCH_USE_S_MODE
/* Kernel is in S-mode */
#error "Missing functionality"
#else
/* Kernel is in M-mode */
return READ_CSR(mhartid);
#endif
}
```
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