xref: /DragonOS/kernel/src/arch/riscv64/asm/csr.rs (revision 59fdb447ee4f7b53b1d9c56ec1442aa8c597ac2b)
1 pub const CSR_SSTATUS: usize = 0x100;
2 pub const CSR_SSCRATCH: usize = 0x140;
3 pub const CSR_SEPC: usize = 0x141;
4 pub const CSR_SCAUSE: usize = 0x142;
5 pub const CSR_STVAL: usize = 0x143;
6 
7 // === Status register flags ===
8 
9 /// Previously Supervisor
10 pub const SR_SPP: usize = 0x00000100;
11 /// Supervisor User Memory Access
12 pub const SR_SUM: usize = 0x00040000;
13 
14 /// Floating-Point Status
15 pub const SR_FS: usize = 0x00006000;
16 /// Vector status
17 pub const SR_VS: usize = 0x00000600;
18 
19 /// Vector and Floating-Point Unit
20 pub const SR_FS_VS: usize = SR_FS | SR_VS;
21