1 files changed, 93 insertions, 0 deletions
diff --git a/env/v/pcr.h b/env/v/pcr.h
new file mode 100644
index 0000000..72043b7
--- /dev/null
+++ b/env/v/pcr.h
@@ -0,0 +1,93 @@
+#ifndef _RISCV_PCR_H
+#define _RISCV_PCR_H
+
+#define SR_ET    0x00000001
+#define SR_EF    0x00000002
+#define SR_EV    0x00000004
+#define SR_EC    0x00000008
+#define SR_PS    0x00000010
+#define SR_S     0x00000020
+#define SR_U64   0x00000040
+#define SR_S64   0x00000080
+#define SR_VM    0x00000100
+#define SR_IM    0x00FF0000
+#define SR_ZERO  ~(SR_ET|SR_EF|SR_EV|SR_EC|SR_PS|SR_S|SR_U64|SR_S64|SR_VM|SR_IM)
+#define SR_IM_SHIFT 16
+
+#define PCR_SR       0
+#define PCR_EPC      1
+#define PCR_BADVADDR 2
+#define PCR_EVEC     3
+#define PCR_COUNT    4
+#define PCR_COMPARE  5
+#define PCR_CAUSE    6
+#define PCR_PTBR     7
+#define PCR_SEND_IPI 8
+#define PCR_CLR_IPI  9
+#define PCR_COREID   10
+#define PCR_IMPL     11
+#define PCR_K0       12
+#define PCR_K1       13
+#define PCR_VECBANK  18
+#define PCR_VECCFG   19
+#define PCR_RESET    29
+#define PCR_TOHOST   30
+#define PCR_FROMHOST 31
+
+#define IMPL_ISASIM 1
+#define IMPL_ROCKET 2
+
+#define IRQ_IPI   5
+#define IRQ_TIMER 7
+
+#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
+#define CAUSE_VECTOR_DISABLED 12
+#define CAUSE_VECTOR_BANK 13
+
+#define CAUSE_VECTOR_MISALIGNED_FETCH 24
+#define CAUSE_VECTOR_FAULT_FETCH 25
+#define CAUSE_VECTOR_ILLEGAL_INSTRUCTION 26
+#define CAUSE_VECTOR_ILLEGAL_COMMAND 27
+#define CAUSE_VECTOR_MISALIGNED_LOAD 28
+#define CAUSE_VECTOR_MISALIGNED_STORE 29
+#define CAUSE_VECTOR_FAULT_LOAD 30
+#define CAUSE_VECTOR_FAULT_STORE 31
+
+#ifdef __riscv
+
+#define ASM_CR(r)   _ASM_CR(r)
+#define _ASM_CR(r)  cr##r
+
+#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; })
+
+#endif
+
+#endif
+
+#endif