Rename sptbr to satp

diff --git a/riscv/encoding.h b/riscv/encoding.h
index 8ec134596e9497d739897772eba81bd9e9566d31..1173fe5338acd1b46240d8ee595be6abfd2f6528 100644 (file)
--- a/riscv/encoding.h
+++ b/riscv/encoding.h
@@ -113,19 +113,19 @@
 #define PRV_H 2
 #define PRV_M 3
 
-#define SPTBR32_MODE 0x80000000
-#define SPTBR32_ASID 0x7FC00000
-#define SPTBR32_PPN  0x003FFFFF
-#define SPTBR64_MODE 0xF000000000000000
-#define SPTBR64_ASID 0x0FFFF00000000000
-#define SPTBR64_PPN  0x00000FFFFFFFFFFF
+#define SATP32_MODE 0x80000000
+#define SATP32_ASID 0x7FC00000
+#define SATP32_PPN  0x003FFFFF
+#define SATP64_MODE 0xF000000000000000
+#define SATP64_ASID 0x0FFFF00000000000
+#define SATP64_PPN  0x00000FFFFFFFFFFF
 
-#define SPTBR_MODE_OFF  0
-#define SPTBR_MODE_SV32 1
-#define SPTBR_MODE_SV39 8
-#define SPTBR_MODE_SV48 9
-#define SPTBR_MODE_SV57 10
-#define SPTBR_MODE_SV64 11
+#define SATP_MODE_OFF  0
+#define SATP_MODE_SV32 1
+#define SATP_MODE_SV39 8
+#define SATP_MODE_SV48 9
+#define SATP_MODE_SV57 10
+#define SATP_MODE_SV64 11
 
 #define PMP_R     0x01
 #define PMP_W     0x02
@@ -177,12 +177,12 @@
 # define MSTATUS_SD MSTATUS64_SD
 # define SSTATUS_SD SSTATUS64_SD
 # define RISCV_PGLEVEL_BITS 9
-# define SPTBR_MODE SPTBR64_MODE
+# define SATP_MODE SATP64_MODE
 #else
 # define MSTATUS_SD MSTATUS32_SD
 # define SSTATUS_SD SSTATUS32_SD
 # define RISCV_PGLEVEL_BITS 10
-# define SPTBR_MODE SPTBR32_MODE
+# define SATP_MODE SATP32_MODE
 #endif
 #define RISCV_PGSHIFT 12
 #define RISCV_PGSIZE (1 << RISCV_PGSHIFT)
@@ -792,7 +792,7 @@
 #define CSR_SCAUSE 0x142
 #define CSR_SBADADDR 0x143
 #define CSR_SIP 0x144
-#define CSR_SPTBR 0x180
+#define CSR_SATP 0x180
 #define CSR_MSTATUS 0x300
 #define CSR_MISA 0x301
 #define CSR_MEDELEG 0x302
@@ -1284,7 +1284,7 @@ DECLARE_CSR(sepc, CSR_SEPC)
 DECLARE_CSR(scause, CSR_SCAUSE)
 DECLARE_CSR(sbadaddr, CSR_SBADADDR)
 DECLARE_CSR(sip, CSR_SIP)
-DECLARE_CSR(sptbr, CSR_SPTBR)
+DECLARE_CSR(satp, CSR_SATP)
 DECLARE_CSR(mstatus, CSR_MSTATUS)
 DECLARE_CSR(misa, CSR_MISA)
 DECLARE_CSR(medeleg, CSR_MEDELEG)

diff --git a/riscv/mmu.cc b/riscv/mmu.cc
index 54b5b1d3d3692e60a30e58854679aa2b3a5c87ad..5f054db64239214a3bd14b7ea238dc229accc839 100644 (file)
--- a/riscv/mmu.cc
+++ b/riscv/mmu.cc
@@ -159,7 +159,7 @@ tlb_entry_t mmu_t::refill_tlb(reg_t vaddr, reg_t paddr, char* host_addr, access_
 
 reg_t mmu_t::walk(reg_t addr, access_type type, reg_t mode)
 {
-  vm_info vm = decode_vm_info(proc->max_xlen, mode, proc->get_state()->sptbr);
+  vm_info vm = decode_vm_info(proc->max_xlen, mode, proc->get_state()->satp);
   if (vm.levels == 0)
     return addr & ((reg_t(2) << (proc->xlen-1))-1); // zero-extend from xlen
 

diff --git a/riscv/mmu.h b/riscv/mmu.h
index 7d6ea88be5cfbc4ac766ffadd25b621c10e4b6c9..e39cd94ad6116c2470e08bc6782c135fa8e69189 100644 (file)
--- a/riscv/mmu.h
+++ b/riscv/mmu.h
@@ -320,23 +320,23 @@ struct vm_info {
   reg_t ptbase;
 };
 
-inline vm_info decode_vm_info(int xlen, reg_t prv, reg_t sptbr)
+inline vm_info decode_vm_info(int xlen, reg_t prv, reg_t satp)
 {
   if (prv == PRV_M) {
     return {0, 0, 0, 0};
   } else if (prv <= PRV_S && xlen == 32) {
-    switch (get_field(sptbr, SPTBR32_MODE)) {
-      case SPTBR_MODE_OFF: return {0, 0, 0, 0};
-      case SPTBR_MODE_SV32: return {2, 10, 4, (sptbr & SPTBR32_PPN) << PGSHIFT};
+    switch (get_field(satp, SATP32_MODE)) {
+      case SATP_MODE_OFF: return {0, 0, 0, 0};
+      case SATP_MODE_SV32: return {2, 10, 4, (satp & SATP32_PPN) << PGSHIFT};
       default: abort();
     }
   } else if (prv <= PRV_S && xlen == 64) {
-    switch (get_field(sptbr, SPTBR64_MODE)) {
-      case SPTBR_MODE_OFF: return {0, 0, 0, 0};
-      case SPTBR_MODE_SV39: return {3, 9, 8, (sptbr & SPTBR64_PPN) << PGSHIFT};
-      case SPTBR_MODE_SV48: return {4, 9, 8, (sptbr & SPTBR64_PPN) << PGSHIFT};
-      case SPTBR_MODE_SV57: return {5, 9, 8, (sptbr & SPTBR64_PPN) << PGSHIFT};
-      case SPTBR_MODE_SV64: return {6, 9, 8, (sptbr & SPTBR64_PPN) << PGSHIFT};
+    switch (get_field(satp, SATP64_MODE)) {
+      case SATP_MODE_OFF: return {0, 0, 0, 0};
+      case SATP_MODE_SV39: return {3, 9, 8, (satp & SATP64_PPN) << PGSHIFT};
+      case SATP_MODE_SV48: return {4, 9, 8, (satp & SATP64_PPN) << PGSHIFT};
+      case SATP_MODE_SV57: return {5, 9, 8, (satp & SATP64_PPN) << PGSHIFT};
+      case SATP_MODE_SV64: return {6, 9, 8, (satp & SATP64_PPN) << PGSHIFT};
       default: abort();
     }
   } else {

diff --git a/riscv/processor.cc b/riscv/processor.cc
index 564b34f286ee3ce1120006a684a28ba6ebfbdaa4..5f095c30f516c60d0eac7c8754a42de35a163f97 100644 (file)
--- a/riscv/processor.cc
+++ b/riscv/processor.cc
@@ -425,14 +425,14 @@ void processor_t::set_csr(int which, reg_t val)
     case CSR_SIE:
       return set_csr(CSR_MIE,
                      (state.mie & ~state.mideleg) | (val & state.mideleg));
-    case CSR_SPTBR: {
+    case CSR_SATP: {
       mmu->flush_tlb();
       if (max_xlen == 32)
-        state.sptbr = val & (SPTBR32_PPN | SPTBR32_MODE);
-      if (max_xlen == 64 && (get_field(val, SPTBR64_MODE) == SPTBR_MODE_OFF ||
-                             get_field(val, SPTBR64_MODE) == SPTBR_MODE_SV39 ||
-                             get_field(val, SPTBR64_MODE) == SPTBR_MODE_SV48))
-        state.sptbr = val & (SPTBR64_PPN | SPTBR64_MODE);
+        state.satp = val & (SATP32_PPN | SATP32_MODE);
+      if (max_xlen == 64 && (get_field(val, SATP64_MODE) == SATP_MODE_OFF ||
+                             get_field(val, SATP64_MODE) == SATP_MODE_SV39 ||
+                             get_field(val, SATP64_MODE) == SATP_MODE_SV48))
+        state.satp = val & (SATP64_PPN | SATP64_MODE);
       break;
     }
     case CSR_SEPC: state.sepc = val; break;
@@ -590,10 +590,10 @@ reg_t processor_t::get_csr(int which)
       if (max_xlen > xlen)
         return state.scause | ((state.scause >> (max_xlen-1)) << (xlen-1));
       return state.scause;
-    case CSR_SPTBR:
+    case CSR_SATP:
       if (get_field(state.mstatus, MSTATUS_TVM))
         require_privilege(PRV_M);
-      return state.sptbr;
+      return state.satp;
     case CSR_SSCRATCH: return state.sscratch;
     case CSR_MSTATUS: return state.mstatus;
     case CSR_MIP: return state.mip;

diff --git a/riscv/processor.h b/riscv/processor.h
index 87cb6a400e28dff4c4322157ff3a692da5add6c6..f37fb59dc6c0ac723f717c21d49494386af528c7 100644 (file)
--- a/riscv/processor.h
+++ b/riscv/processor.h
@@ -112,7 +112,7 @@ struct state_t
   reg_t sbadaddr;
   reg_t sscratch;
   reg_t stvec;
-  reg_t sptbr;
+  reg_t satp;
   reg_t scause;
   reg_t dpc;
   reg_t dscratch;