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| author | Evgeny Voevodin <evvoevod@tenstorrent.com> | 2026-05-07 18:08:03 +0000 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2026-05-09 12:59:43 +0530 |
| commit | b63606f98180cb92cc7c47c42b63bf92a21dfdee (patch) | |
| tree | 37d67109b474509e9fce3f861eae0ff8b04355b9 | |
| parent | 5d248a013281ea80be3375cfc19e8ca541d33c34 (diff) | |
| download | opensbi-b63606f98180cb92cc7c47c42b63bf92a21dfdee.tar.gz opensbi-b63606f98180cb92cc7c47c42b63bf92a21dfdee.zip | |
lib: sbi: Add Smrnmi extension macros for registers and bits
Add CSR definitions (MNSCRATCH, MNSTATUS, MNEPC, MNCAUSE) and bit definitions
(MNSTATUS_NMIE, MNSTATUS_MNPV, MNSTATUS_MNPP). Also add SBI_HART_EXT_SMRNMI to
the hart extension enumeration.
Signed-off-by: Evgeny Voevodin <evvoevod@tenstorrent.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/1c6feb6d359b9827b3c2ad8f4f0e0a4dfd1de911.1778176768.git.evvoevod@tenstorrent.com
Signed-off-by: Anup Patel <anup@brainfault.org>
| -rw-r--r-- | include/sbi/riscv_encoding.h | 10 | ||||
| -rw-r--r-- | include/sbi/sbi_hart.h | 2 | ||||
| -rw-r--r-- | lib/sbi/sbi_hart.c | 1 |
3 files changed, 13 insertions, 0 deletions
diff --git a/include/sbi/riscv_encoding.h b/include/sbi/riscv_encoding.h index 3c1d5256..18f7b4a7 100644 --- a/include/sbi/riscv_encoding.h +++ b/include/sbi/riscv_encoding.h @@ -215,6 +215,10 @@ #endif +#define MNSTATUS_NMIE (_UL(0x8)) +#define MNSTATUS_MNPV (_UL(0x80)) +#define MNSTATUS_MNPP (_UL(0x1800)) + #define MHPMEVENT_SSCOF_MASK _ULL(0xFF00000000000000) #define ENVCFG_STCE (_ULL(1) << 63) @@ -830,6 +834,12 @@ #define CSR_CUSTOM10_M_RO_BASE 0xFC0 #define CSR_CUSTOM10_M_RO_COUNT 0x040 +/* Smrnmi extension registers */ +#define CSR_MNSCRATCH 0x740 +#define CSR_MNEPC 0x741 +#define CSR_MNCAUSE 0x742 +#define CSR_MNSTATUS 0x744 + /* ===== Trap/Exception Causes ===== */ #define CAUSE_MISALIGNED_FETCH 0x0 diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h index a788b34c..937cdf29 100644 --- a/include/sbi/sbi_hart.h +++ b/include/sbi/sbi_hart.h @@ -87,6 +87,8 @@ enum sbi_hart_extensions { SBI_HART_EXT_XSIFIVE_CFLUSH_D_L1, /** Hart has Xsfcease extension */ SBI_HART_EXT_XSIFIVE_CEASE, + /** Hart has Smrnmi extension */ + SBI_HART_EXT_SMRNMI, /** Maximum index of Hart extension */ SBI_HART_EXT_MAX, diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c index 99e13990..4aefb759 100644 --- a/lib/sbi/sbi_hart.c +++ b/lib/sbi/sbi_hart.c @@ -396,6 +396,7 @@ const struct sbi_hart_ext_data sbi_hart_ext[] = { __SBI_HART_EXT_DATA(ssstateen, SBI_HART_EXT_SSSTATEEN), __SBI_HART_EXT_DATA(xsfcflushdlone, SBI_HART_EXT_XSIFIVE_CFLUSH_D_L1), __SBI_HART_EXT_DATA(xsfcease, SBI_HART_EXT_XSIFIVE_CEASE), + __SBI_HART_EXT_DATA(smrnmi, SBI_HART_EXT_SMRNMI), }; _Static_assert(SBI_HART_EXT_MAX == array_size(sbi_hart_ext), |