diff options
Diffstat (limited to 'encoding.h')
| -rw-r--r-- | encoding.h | 142 |
1 files changed, 70 insertions, 72 deletions
@@ -3,42 +3,41 @@ #ifndef RISCV_CSR_ENCODING_H #define RISCV_CSR_ENCODING_H -#define MSTATUS_SSIP 0x00000002 -#define MSTATUS_HSIP 0x00000004 -#define MSTATUS_MSIP 0x00000008 -#define MSTATUS_IE 0x00000010 -#define MSTATUS_PRV 0x00000060 -#define MSTATUS_IE1 0x00000080 -#define MSTATUS_PRV1 0x00000300 -#define MSTATUS_IE2 0x00000400 -#define MSTATUS_PRV2 0x00001800 -#define MSTATUS_IE3 0x00002000 -#define MSTATUS_PRV3 0x0000C000 -#define MSTATUS_MPRV 0x00030000 -#define MSTATUS_VM 0x00780000 -#define MSTATUS_STIE 0x01000000 -#define MSTATUS_HTIE 0x02000000 -#define MSTATUS_MTIE 0x04000000 -#define MSTATUS_FS 0x18000000 -#define MSTATUS_XS 0x60000000 +#define MSTATUS_IE 0x00000001 +#define MSTATUS_PRV 0x00000006 +#define MSTATUS_IE1 0x00000008 +#define MSTATUS_PRV1 0x00000030 +#define MSTATUS_IE2 0x00000040 +#define MSTATUS_PRV2 0x00000180 +#define MSTATUS_IE3 0x00000200 +#define MSTATUS_PRV3 0x00000C00 +#define MSTATUS_FS 0x00003000 +#define MSTATUS_XS 0x0000C000 +#define MSTATUS_MPRV 0x00010000 +#define MSTATUS_VM 0x003E0000 #define MSTATUS32_SD 0x80000000 -#define MSTATUS64_UA 0x0000000F00000000 -#define MSTATUS64_SA 0x000000F000000000 -#define MSTATUS64_HA 0x00000F0000000000 #define MSTATUS64_SD 0x8000000000000000 -#define SSTATUS_SIP 0x00000002 -#define SSTATUS_IE 0x00000010 -#define SSTATUS_PIE 0x00000080 -#define SSTATUS_PS 0x00000100 -#define SSTATUS_UA 0x000F0000 +#define SSTATUS_IE 0x00000001 +#define SSTATUS_PIE 0x00000008 +#define SSTATUS_PS 0x00000010 +#define SSTATUS_FS 0x00003000 +#define SSTATUS_XS 0x0000C000 +#define SSTATUS_MPRV 0x00010000 #define SSTATUS_TIE 0x01000000 -#define SSTATUS_TIP 0x04000000 -#define SSTATUS_FS 0x18000000 -#define SSTATUS_XS 0x60000000 #define SSTATUS32_SD 0x80000000 #define SSTATUS64_SD 0x8000000000000000 +#define MIP_SSIP 0x00000002 +#define MIP_HSIP 0x00000004 +#define MIP_MSIP 0x00000008 +#define MIP_STIP 0x00000200 +#define MIP_HTIP 0x00000400 +#define MIP_MTIP 0x00000800 + +#define SIP_SSIP MIP_SSIP +#define SIP_STIP MIP_STIP + #define PRV_U 0 #define PRV_S 1 #define PRV_H 2 @@ -55,65 +54,64 @@ #define UA_RV64 4 #define UA_RV128 8 -#define IRQ_TIMER 0 -#define IRQ_IPI 1 +#define IRQ_SOFT 0 +#define IRQ_TIMER 1 #define IRQ_HOST 2 #define IRQ_COP 3 -#define IMPL_SPIKE 1 -#define IMPL_ROCKET 2 +#define IMPL_ROCKET 1 + +#define DEFAULT_MTVEC 0x100 // page table entry (PTE) fields -#define PTE_TYPE 0x007 -#define PTE_PERM 0x018 -#define PTE_G 0x020 // Global -#define PTE_R 0x040 // Referenced -#define PTE_D 0x080 // Dirty -#define PTE_SOFT 0x300 // Reserved for Software -#define RV64_PTE_PPN_SHIFT 26 -#define RV32_PTE_PPN_SHIFT 10 -#define PTE_TYPE_INVALID 0 -#define PTE_TYPE_TABLE 1 -#define PTE_TYPE_U 2 -#define PTE_TYPE_S 3 -#define PTE_TYPE_US 4 -#define PTE_TYPE_US_SR 4 -#define PTE_TYPE_US_SRW 5 -#define PTE_TYPE_US_SRX 6 -#define PTE_TYPE_US_SRWX 7 - -#define PROT_TO_PERM(PROT) ((((PROT) & PROT_EXEC) ? 2 : 0) | (((PROT) & PROT_WRITE) ? 1 : 0)) -#define PTE_CREATE(PPN, PERM_U, PERM_S) \ - (((PPN) << PTE_PPN_SHIFT) | (PROT_TO_PERM(PERM_U) << 3) | \ - ((PERM_U) && (PERM_S) ? (PTE_TYPE_US | PROT_TO_PERM(PERM_S)) : \ - (PERM_S) ? (PTE_TYPE_S | (PROT_TO_PERM(PERM_S) << 3)) : \ - (PERM_U) ? PTE_TYPE_U : 0)) - -#define PTE_UR(PTE) ((0xF4F4F4F4U >> ((PTE) & 0x1f)) & 1) -#define PTE_UW(PTE) ((0xF400F400U >> ((PTE) & 0x1f)) & 1) -#define PTE_UX(PTE) ((0xF4F40000U >> ((PTE) & 0x1f)) & 1) -#define PTE_SR(PTE) ((0xF8F8F8F8U >> ((PTE) & 0x1f)) & 1) -#define PTE_SW(PTE) ((0xA8A0A8A0U >> ((PTE) & 0x1f)) & 1) -#define PTE_SX(PTE) ((0xC8C8C0C0U >> ((PTE) & 0x1f)) & 1) -#define PTE_CHECK_PERM(PTE, SUPERVISOR, WRITE, EXEC) \ - ((SUPERVISOR) ? ((WRITE) ? PTE_SW(PTE) : (EXEC) ? PTE_SX(PTE) : PTE_SR(PTE)) \ - : ((WRITE) ? PTE_UW(PTE) : (EXEC) ? PTE_UX(PTE) : PTE_UR(PTE))) +#define PTE_V 0x001 // Valid +#define PTE_TYPE 0x01E // Type +#define PTE_R 0x020 // Referenced +#define PTE_D 0x040 // Dirty +#define PTE_SOFT 0x380 // Reserved for Software + +#define PTE_TYPE_TABLE 0x00 +#define PTE_TYPE_TABLE_GLOBAL 0x02 +#define PTE_TYPE_URX_SR 0x04 +#define PTE_TYPE_URWX_SRW 0x06 +#define PTE_TYPE_UR_SR 0x08 +#define PTE_TYPE_URW_SRW 0x0A +#define PTE_TYPE_URX_SRX 0x0C +#define PTE_TYPE_URWX_SRWX 0x0E +#define PTE_TYPE_SR 0x10 +#define PTE_TYPE_SRW 0x12 +#define PTE_TYPE_SRX 0x14 +#define PTE_TYPE_SRWX 0x16 +#define PTE_TYPE_SR_GLOBAL 0x18 +#define PTE_TYPE_SRW_GLOBAL 0x1A +#define PTE_TYPE_SRX_GLOBAL 0x1C +#define PTE_TYPE_SRWX_GLOBAL 0x1E + +#define PTE_PPN_SHIFT 10 + +#define PTE_TABLE(PTE) ((0x0000000AU >> ((PTE) & 0x1F)) & 1) +#define PTE_UR(PTE) ((0x0000AAA0U >> ((PTE) & 0x1F)) & 1) +#define PTE_UW(PTE) ((0x00008880U >> ((PTE) & 0x1F)) & 1) +#define PTE_UX(PTE) ((0x0000A0A0U >> ((PTE) & 0x1F)) & 1) +#define PTE_SR(PTE) ((0xAAAAAAA0U >> ((PTE) & 0x1F)) & 1) +#define PTE_SW(PTE) ((0x88888880U >> ((PTE) & 0x1F)) & 1) +#define PTE_SX(PTE) ((0xA0A0A000U >> ((PTE) & 0x1F)) & 1) + +#define PTE_CHECK_PERM(PTE, SUPERVISOR, STORE, FETCH) \ + ((STORE) ? ((SUPERVISOR) ? PTE_SW(PTE) : PTE_UW(PTE)) : \ + (FETCH) ? ((SUPERVISOR) ? PTE_SX(PTE) : PTE_UX(PTE)) : \ + ((SUPERVISOR) ? PTE_SR(PTE) : PTE_UR(PTE))) #ifdef __riscv #ifdef __riscv64 -# define MSTATUS_UA MSTATUS64_UA -# define MSTATUS_SA MSTATUS64_SA -# define MSTATUS_HA MSTATUS64_HA # define MSTATUS_SD MSTATUS64_SD # define SSTATUS_SD SSTATUS64_SD # define RISCV_PGLEVEL_BITS 9 -# define PTE_PPN_SHIFT RV64_PTE_PPN_SHIFT #else # define MSTATUS_SD MSTATUS32_SD # define SSTATUS_SD SSTATUS32_SD # define RISCV_PGLEVEL_BITS 10 -# define PTE_PPN_SHIFT RV32_PTE_PPN_SHIFT #endif #define RISCV_PGSHIFT 12 #define RISCV_PGSIZE (1 << RISCV_PGSHIFT) |