Renamed packages

1 files changed, 0 insertions, 274 deletions

diff --git a/pk/fp.c b/pk/fp.c
deleted file mode 100644
index e1298ad..0000000
--- a/pk/fp.c
+++ /dev/null
@@ -1,274 +0,0 @@
-#include "pk.h"
-#include "pcr.h"
-#include "fp.h"
-
-static fp_state_t fp_state;
-
-#ifdef PK_ENABLE_FP_EMULATION
-
-#include "softfloat.h"
-#include "riscv-opc.h"
-#include <stdint.h>
-
-#define noisy 0
-
-static void set_fp_reg(unsigned int which, unsigned int dp, uint64_t val);
-static uint64_t get_fp_reg(unsigned int which, unsigned int dp);
-
-static inline void
-validate_address(trapframe_t* tf, long addr, int size, int store)
-{
-  if(addr & (size-1))
-    store ? handle_misaligned_store(tf) : handle_misaligned_load(tf);
-  if(addr < USER_START)
-    store ? handle_fault_store(tf) : handle_fault_load(tf);
-}
-
-int emulate_fp(trapframe_t* tf)
-{
-  if(have_fp)
-  {
-    if(!(mfpcr(PCR_SR) & SR_EF))
-      init_fp(tf);
-    fp_state.fsr = get_fp_state(fp_state.fpr);
-  }
-
-  if(noisy)
-    printk("FPU emulation at pc %lx, insn %x\n",tf->epc,(uint32_t)tf->insn);
-
-  #define RRS1 ((tf->insn >> 22) & 0x1F)
-  #define RRS2 ((tf->insn >> 17) & 0x1F)
-  #define RRS3 ((tf->insn >> 12) & 0x1F)
-  #define RRD  ((tf->insn >> 27) & 0x1F)
-  #define RM   ((tf->insn >>  9) &  0x7)
-
-  int32_t imm = ((int32_t)tf->insn << 10) >> 20;
-  int32_t bimm = (((tf->insn >> 27) & 0x1f) << 7) | ((tf->insn >> 10) & 0x7f);
-  bimm = (bimm << 20) >> 20;
-
-  #define XRS1 (tf->gpr[RRS1])
-  #define XRS2 (tf->gpr[RRS2])
-  #define XRDR (tf->gpr[RRD])
-
-  uint64_t frs1d = fp_state.fpr[RRS1];
-  uint64_t frs2d = fp_state.fpr[RRS2];
-  uint64_t frs3d = fp_state.fpr[RRS3];
-  uint32_t frs1s = get_fp_reg(RRS1, 0);
-  uint32_t frs2s = get_fp_reg(RRS2, 0);
-  uint32_t frs3s = get_fp_reg(RRS3, 0);
-
-  long effective_address_load = XRS1 + imm;
-  long effective_address_store = XRS1 + bimm;
-
-  softfloat_exceptionFlags = 0;
-  softfloat_roundingMode = (RM == 7) ? ((fp_state.fsr >> 5) & 7) : RM;
-
-  #define IS_INSN(x) ((tf->insn & MASK_ ## x) == MATCH_ ## x)
-
-  int do_writeback = 0;
-  int writeback_dp;
-  uint64_t writeback_value;
-  #define DO_WRITEBACK(dp, value) \
-    do { do_writeback = 1; writeback_dp = (dp); writeback_value = (value); } \
-    while(0)
-
-  if(IS_INSN(FLW))
-  {
-    validate_address(tf, effective_address_load, 4, 0);
-    DO_WRITEBACK(0, *(uint32_t*)effective_address_load);
-  }
-  else if(IS_INSN(FLD))
-  {
-    validate_address(tf, effective_address_load, 8, 0);
-    DO_WRITEBACK(1, *(uint64_t*)effective_address_load);
-  }
-  else if(IS_INSN(FSW))
-  {
-    validate_address(tf, effective_address_store, 4, 1);
-    *(uint32_t*)effective_address_store = frs2s;
-  }
-  else if(IS_INSN(FSD))
-  {
-    validate_address(tf, effective_address_store, 8, 1);
-    *(uint64_t*)effective_address_store = frs2d;
-  }
-  else if(IS_INSN(MFTX_S))
-    XRDR = frs2s;
-  else if(IS_INSN(MFTX_D))
-    XRDR = frs2d;
-  else if(IS_INSN(MXTF_S))
-    DO_WRITEBACK(0, XRS1);
-  else if(IS_INSN(MXTF_D))
-    DO_WRITEBACK(1, XRS1);
-  else if(IS_INSN(FSGNJ_S))
-    DO_WRITEBACK(0, (frs1s &~ (uint32_t)INT32_MIN) | (frs2s & (uint32_t)INT32_MIN));
-  else if(IS_INSN(FSGNJ_D))
-    DO_WRITEBACK(1, (frs1d &~ INT64_MIN) | (frs2d & INT64_MIN));
-  else if(IS_INSN(FSGNJN_S))
-    DO_WRITEBACK(0, (frs1s &~ (uint32_t)INT32_MIN) | ((~frs2s) & (uint32_t)INT32_MIN));
-  else if(IS_INSN(FSGNJN_D))
-    DO_WRITEBACK(1, (frs1d &~ INT64_MIN) | ((~frs2d) & INT64_MIN));
-  else if(IS_INSN(FSGNJX_S))
-    DO_WRITEBACK(0, frs1s ^ (frs2s & (uint32_t)INT32_MIN));
-  else if(IS_INSN(FSGNJX_D))
-    DO_WRITEBACK(1, frs1d ^ (frs2d & INT64_MIN));
-  else if(IS_INSN(FEQ_S))
-    XRDR = f32_eq(frs1s, frs2s);
-  else if(IS_INSN(FEQ_D))
-    XRDR = f64_eq(frs1d, frs2d);
-  else if(IS_INSN(FLE_S))
-    XRDR = f32_eq(frs1s, frs2s) || f32_lt(frs1s, frs2s);
-  else if(IS_INSN(FLE_D))
-    XRDR = f64_eq(frs1d, frs2d) || f64_lt(frs1s, frs2s);
-  else if(IS_INSN(FLT_S))
-    XRDR = f32_lt(frs1s, frs2s);
-  else if(IS_INSN(FLT_D))
-    XRDR = f64_lt(frs1d, frs2d);
-  else if(IS_INSN(FCVT_S_W))
-    DO_WRITEBACK(0, i64_to_f32((int64_t)(int32_t)XRS1));
-  else if(IS_INSN(FCVT_S_L))
-    DO_WRITEBACK(0, i64_to_f32(XRS1));
-  else if(IS_INSN(FCVT_S_D))
-    DO_WRITEBACK(0, f64_to_f32(frs1d));
-  else if(IS_INSN(FCVT_D_W))
-    DO_WRITEBACK(1, i64_to_f64((int64_t)(int32_t)XRS1));
-  else if(IS_INSN(FCVT_D_L))
-    DO_WRITEBACK(1, i64_to_f64(XRS1));
-  else if(IS_INSN(FCVT_D_S))
-    DO_WRITEBACK(1, f32_to_f64(frs1s));
-  else if(IS_INSN(FCVT_S_WU))
-    DO_WRITEBACK(0, ui64_to_f32((uint64_t)(uint32_t)XRS1));
-  else if(IS_INSN(FCVT_S_LU))
-    DO_WRITEBACK(0, ui64_to_f32(XRS1));
-  else if(IS_INSN(FCVT_D_WU))
-    DO_WRITEBACK(1, ui64_to_f64((uint64_t)(uint32_t)XRS1));
-  else if(IS_INSN(FCVT_D_LU))
-    DO_WRITEBACK(1, ui64_to_f64(XRS1));
-  else if(IS_INSN(FADD_S))
-    DO_WRITEBACK(0, f32_mulAdd(frs1s, 0x3f800000, frs2s));
-  else if(IS_INSN(FADD_D))
-    DO_WRITEBACK(1, f64_mulAdd(frs1d, 0x3ff0000000000000LL, frs2d));
-  else if(IS_INSN(FSUB_S))
-    DO_WRITEBACK(0, f32_mulAdd(frs1s, 0x3f800000, frs2s ^ (uint32_t)INT32_MIN));
-  else if(IS_INSN(FSUB_D))
-    DO_WRITEBACK(1, f64_mulAdd(frs1d, 0x3ff0000000000000LL, frs2d ^ INT64_MIN));
-  else if(IS_INSN(FMUL_S))
-    DO_WRITEBACK(0, f32_mulAdd(frs1s, frs2s, 0));
-  else if(IS_INSN(FMUL_D))
-    DO_WRITEBACK(1, f64_mulAdd(frs1d, frs2d, 0));
-  else if(IS_INSN(FMADD_S))
-    DO_WRITEBACK(0, f32_mulAdd(frs1s, frs2s, frs3s));
-  else if(IS_INSN(FMADD_D))
-    DO_WRITEBACK(1, f64_mulAdd(frs1d, frs2d, frs3d));
-  else if(IS_INSN(FMSUB_S))
-    DO_WRITEBACK(0, f32_mulAdd(frs1s, frs2s, frs3s ^ (uint32_t)INT32_MIN));
-  else if(IS_INSN(FMSUB_D))
-    DO_WRITEBACK(1, f64_mulAdd(frs1d, frs2d, frs3d ^ INT64_MIN));
-  else if(IS_INSN(FNMADD_S))
-    DO_WRITEBACK(0, f32_mulAdd(frs1s, frs2s, frs3s) ^ (uint32_t)INT32_MIN);
-  else if(IS_INSN(FNMADD_D))
-    DO_WRITEBACK(1, f64_mulAdd(frs1d, frs2d, frs3d) ^ INT64_MIN);
-  else if(IS_INSN(FNMSUB_S))
-    DO_WRITEBACK(0, f32_mulAdd(frs1s, frs2s, frs3s ^ (uint32_t)INT32_MIN) ^ (uint32_t)INT32_MIN);
-  else if(IS_INSN(FNMSUB_D))
-    DO_WRITEBACK(1, f64_mulAdd(frs1d, frs2d, frs3d ^ INT64_MIN) ^ INT64_MIN);
-  else if(IS_INSN(FDIV_S))
-    DO_WRITEBACK(0, f32_div(frs1s, frs2s));
-  else if(IS_INSN(FDIV_D))
-    DO_WRITEBACK(1, f64_div(frs1d, frs2d));
-  else if(IS_INSN(FSQRT_S))
-    DO_WRITEBACK(0, f32_sqrt(frs1s));
-  else if(IS_INSN(FSQRT_D))
-    DO_WRITEBACK(1, f64_sqrt(frs1d));
-  else if(IS_INSN(FCVT_W_S))
-    XRDR = f32_to_i32_r_minMag(frs1s,true);
-  else if(IS_INSN(FCVT_W_D))
-    XRDR = f64_to_i32_r_minMag(frs1d,true);
-  else if(IS_INSN(FCVT_L_S))
-    XRDR = f32_to_i64_r_minMag(frs1s,true);
-  else if(IS_INSN(FCVT_L_D))
-    XRDR = f64_to_i64_r_minMag(frs1d,true);
-  else if(IS_INSN(FCVT_WU_S))
-    XRDR = f32_to_ui32_r_minMag(frs1s,true);
-  else if(IS_INSN(FCVT_WU_D))
-    XRDR = f64_to_ui32_r_minMag(frs1d,true);
-  else if(IS_INSN(FCVT_LU_S))
-    XRDR = f32_to_ui64_r_minMag(frs1s,true);
-  else if(IS_INSN(FCVT_LU_D))
-    XRDR = f64_to_ui64_r_minMag(frs1d,true);
-  else
-    return -1;
-
-  if(do_writeback)
-    set_fp_reg(RRD, writeback_dp, writeback_value);
-
-  if(have_fp)
-    put_fp_state(fp_state.fpr,fp_state.fsr);
-
-  return 0;
-}
-
-#define STR(x) XSTR(x)
-#define XSTR(x) #x
-
-#define PUT_FP_REG(which, type, val) asm("mxtf." STR(type) " $f" STR(which) ",%0" : : "r"(val))
-#define GET_FP_REG(which, type, val) asm("mftx." STR(type) " %0,$f" STR(which) : "=r"(val))
-#define LOAD_FP_REG(which, type, val) asm("fl" STR(type) " $f" STR(which) ",%0" : : "m"(val))
-#define STORE_FP_REG(which, type, val)  asm("fs" STR(type) " $f" STR(which) ",%0" : "=m"(val) : : "memory")
-
-static void __attribute__((noinline))
-set_fp_reg(unsigned int which, unsigned int dp, uint64_t val)
-{
-  if(noisy)
-  {
-    printk("fpr%c[%x] <= ",dp?'d':'s',which);
-    printk("%lx\n",val);
-  }
-
-  if(dp || !have_fp)
-    fp_state.fpr[which] = val;
-  else
-  {
-    // to set an SP value, move the SP value into the FPU
-    // then move it back out as a DP value.  OK to clobber $f0
-    // because we'll restore it later.
-    PUT_FP_REG(0,s,val);
-    STORE_FP_REG(0,d,fp_state.fpr[which]);
-  }
-}
-
-static uint64_t __attribute__((noinline))
-get_fp_reg(unsigned int which, unsigned int dp)
-{
-  uint64_t val;
-  if(dp || !have_fp)
-    val = fp_state.fpr[which];
-  else
-  {
-    // to get an SP value, move the DP value into the FPU
-    // then move it back out as an SP value.  OK to clobber $f0
-    // because we'll restore it later.
-    LOAD_FP_REG(0,d,fp_state.fpr[which]);
-    GET_FP_REG(0,s,val);
-  }
-
-  if(noisy)
-  {
-    printk("fpr%c[%x] => ",dp?'d':'s',which);
-    printk("%lx\n",val);
-  }
-
-  return val;
-}
-
-#endif
-
-void init_fp(trapframe_t* tf)
-{
-  long sr = mfpcr(PCR_SR);
-  mtpcr(PCR_SR, sr | SR_EF);
-
-  put_fp_state(fp_state.fpr,fp_state.fsr);
-
-  tf->sr |= SR_EF;
-}