diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/sbi/sbi_hart.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h index bce88c59..dfbe8e4c 100644 --- a/include/sbi/sbi_hart.h +++ b/include/sbi/sbi_hart.h @@ -93,6 +93,14 @@ struct sbi_hart_ext_data { extern const struct sbi_hart_ext_data sbi_hart_ext[]; +/** CSRs should be detected by access and trapping */ +enum sbi_hart_csrs { + SBI_HART_CSR_CYCLE = 0, + SBI_HART_CSR_TIME, + SBI_HART_CSR_INSTRET, + SBI_HART_CSR_MAX, +}; + /* * Smepmp enforces access boundaries between M-mode and * S/U-mode. When it is enabled, the PMPs are programmed @@ -112,6 +120,7 @@ struct sbi_hart_features { bool detected; int priv_version; unsigned long extensions[BITS_TO_LONGS(SBI_HART_EXT_MAX)]; + unsigned long csrs[BITS_TO_LONGS(SBI_HART_CSR_MAX)]; unsigned int pmp_count; unsigned int pmp_addr_bits; unsigned int pmp_log2gran; @@ -150,6 +159,7 @@ bool sbi_hart_has_extension(struct sbi_scratch *scratch, enum sbi_hart_extensions ext); void sbi_hart_get_extensions_str(struct sbi_scratch *scratch, char *extension_str, int nestr); +bool sbi_hart_has_csr(struct sbi_scratch *scratch, enum sbi_hart_csrs csr); void __attribute__((noreturn)) sbi_hart_hang(void); |