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// See LICENSE for license details.
#ifndef _RISCV_PCR_H
#define _RISCV_PCR_H
#define SR_S 0x00000001
#define SR_PS 0x00000002
#define SR_EI 0x00000004
#define SR_PEI 0x00000008
#define SR_EF 0x00000010
#define SR_U64 0x00000020
#define SR_S64 0x00000040
#define SR_VM 0x00000080
#define SR_EA 0x00000100
#define SR_IM 0x00FF0000
#define SR_IP 0xFF000000
#define SR_ZERO ~(SR_S|SR_PS|SR_EI|SR_PEI|SR_EF|SR_U64|SR_S64|SR_VM|SR_EA|SR_IM|SR_IP)
#define SR_IM_SHIFT 16
#define SR_IP_SHIFT 24
#define PCR_SUP0 0
#define PCR_SUP1 1
#define PCR_EPC 2
#define PCR_BADVADDR 3
#define PCR_PTBR 4
#define PCR_ASID 5
#define PCR_COUNT 6
#define PCR_COMPARE 7
#define PCR_EVEC 8
#define PCR_CAUSE 9
#define PCR_SR 10
#define PCR_HARTID 11
#define PCR_IMPL 12
#define PCR_FATC 13
#define PCR_SEND_IPI 14
#define PCR_CLR_IPI 15
#define PCR_VECBANK 18
#define PCR_VECCFG 19
#define PCR_RESET 29
#define PCR_TOHOST 30
#define PCR_FROMHOST 31
#define IRQ_COP 2
#define IRQ_IPI 5
#define IRQ_HOST 6
#define IRQ_TIMER 7
#define IMPL_SPIKE 1
#define IMPL_ROCKET 2
#define CAUSE_MISALIGNED_FETCH 0
#define CAUSE_FAULT_FETCH 1
#define CAUSE_ILLEGAL_INSTRUCTION 2
#define CAUSE_PRIVILEGED_INSTRUCTION 3
#define CAUSE_FP_DISABLED 4
#define CAUSE_SYSCALL 6
#define CAUSE_BREAKPOINT 7
#define CAUSE_MISALIGNED_LOAD 8
#define CAUSE_MISALIGNED_STORE 9
#define CAUSE_FAULT_LOAD 10
#define CAUSE_FAULT_STORE 11
// page table entry (PTE) fields
#define PTE_V 0x001 // Entry is a page Table descriptor
#define PTE_T 0x002 // Entry is a page Table, not a terminal node
#define PTE_G 0x004 // Global
#define PTE_UR 0x008 // User Write permission
#define PTE_UW 0x010 // User Read permission
#define PTE_UX 0x020 // User eXecute permission
#define PTE_SR 0x040 // Supervisor Read permission
#define PTE_SW 0x080 // Supervisor Write permission
#define PTE_SX 0x100 // Supervisor eXecute permission
#define PTE_PERM (PTE_SR | PTE_SW | PTE_SX | PTE_UR | PTE_UW | PTE_UX)
#ifdef __riscv
#ifdef __riscv64
# define RISCV_PGLEVELS 3
# define RISCV_PGSHIFT 13
#else
# define RISCV_PGLEVELS 2
# define RISCV_PGSHIFT 12
#endif
#define RISCV_PGLEVEL_BITS 10
#define RISCV_PGSIZE (1 << RISCV_PGSHIFT)
#ifndef __ASSEMBLER__
#define mtpcr(reg,val) ({ long __tmp = (long)(val), __tmp2; \
asm volatile ("mtpcr %0,%1,cr%2" : "=r"(__tmp2) : "r"(__tmp),"i"(reg)); \
__tmp2; })
#define mfpcr(reg) ({ long __tmp; \
asm volatile ("mfpcr %0,cr%1" : "=r"(__tmp) : "i"(reg)); \
__tmp; })
#define setpcr(reg,val) ({ long __tmp; \
asm volatile ("setpcr %0,cr%2,%1" : "=r"(__tmp) : "i"(val), "i"(reg)); \
__tmp; })
#define clearpcr(reg,val) ({ long __tmp; \
asm volatile ("clearpcr %0,cr%2,%1" : "=r"(__tmp) : "i"(val), "i"(reg)); \
__tmp; })
#define rdcycle() ({ unsigned long __tmp; \
asm volatile ("rdcycle %0" : "=r"(__tmp)); \
__tmp; })
#endif
#endif
#endif
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