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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2021-12-19 17:10:36 +0200 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2021-12-19 17:10:36 +0200 |
| commit | 9966b49db468de0168c7a455dfb5b4c66c413c4d (patch) | |
| tree | df31febe5e1ae52bae68ebe1df8b4469b97e0546 /arch/riscv/include/csr.h | |
| parent | 8bb1e280280c2f30740defca68ea643c56a3d880 (diff) | |
| download | kmi-9966b49db468de0168c7a455dfb5b4c66c413c4d.tar.gz kmi-9966b49db468de0168c7a455dfb5b4c66c413c4d.zip | |
Massive changes to jump to userspace
Diffstat (limited to 'arch/riscv/include/csr.h')
| -rw-r--r-- | arch/riscv/include/csr.h | 36 |
1 files changed, 32 insertions, 4 deletions
diff --git a/arch/riscv/include/csr.h b/arch/riscv/include/csr.h index ab25bdd..70e60bb 100644 --- a/arch/riscv/include/csr.h +++ b/arch/riscv/include/csr.h @@ -3,11 +3,39 @@ #include <apos/utils.h> -#define SATP_MODE_Sv32 0x80000000 -#define SATP_MODE_Sv39 0x8000000000000000 -#define SATP_MODE_Sv48 0x9000000000000000 +#define SATP_MODE_Sv32 0x80000000 +#define SATP_MODE_Sv39 0x8000000000000000 +#define SATP_MODE_Sv48 0x9000000000000000 -#define CSR_SATP 0x180 + +/* supervisor CSR registers */ +#define CSR_SSTATUS 0x100 +#define CSR_SIE 0x104 +#define CSR_STVEC 0x105 +#define CSR_SCOUNTEREN 0x106 + +#define CSR_SENVCFG 0x10A + +#define CSR_SSCRATCH 0x140 +#define CSR_SEPC 0x141 +#define CSR_SCAUSE 0x142 +#define CSR_STVAL 0x143 +#define CSR_SIP 0x144 + +#define CSR_SATP 0x180 + +#define CSR_SCONTEXT 0x5A8 + +/* Exception causes */ +#define EXC_INST_MISALIGNED 0 +#define EXC_INST_ACCESS 1 +#define EXC_BREAKPOINT 3 +#define EXC_LOAD_ACCESS 5 +#define EXC_STORE_ACCESS 7 +#define EXC_SYSCALL 8 +#define EXC_INST_PAGE_FAULT 12 +#define EXC_LOAD_PAGE_FAULT 13 +#define EXC_STORE_PAGE_FAULT 15 /* directly lifted from Linux:/arch/riscv/include/asm/asm.h:9-13 */ #ifdef __ASSEMBLY__ |