ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/powerpc/xmon/spu-dis.c b/marvell/linux/arch/powerpc/xmon/spu-dis.c
new file mode 100644
index 0000000..4b0a4e6
--- /dev/null
+++ b/marvell/linux/arch/powerpc/xmon/spu-dis.c
@@ -0,0 +1,237 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Disassemble SPU instructions
+
+ Copyright 2006 Free Software Foundation, Inc.
+
+ This file is part of GDB, GAS, and the GNU binutils.
+
+ */
+
+#include <linux/string.h>
+#include "nonstdio.h"
+#include "ansidecl.h"
+#include "spu.h"
+#include "dis-asm.h"
+
+/* This file provides a disassembler function which uses
+ the disassembler interface defined in dis-asm.h. */
+
+extern const struct spu_opcode spu_opcodes[];
+extern const int spu_num_opcodes;
+
+#define SPU_DISASM_TBL_SIZE (1 << 11)
+static const struct spu_opcode *spu_disassemble_table[SPU_DISASM_TBL_SIZE];
+
+static void
+init_spu_disassemble (void)
+{
+ int i;
+
+ /* If two instructions have the same opcode then we prefer the first
+ * one. In most cases it is just an alternate mnemonic. */
+ for (i = 0; i < spu_num_opcodes; i++)
+ {
+ int o = spu_opcodes[i].opcode;
+ if (o >= SPU_DISASM_TBL_SIZE)
+ continue; /* abort (); */
+ if (spu_disassemble_table[o] == 0)
+ spu_disassemble_table[o] = &spu_opcodes[i];
+ }
+}
+
+/* Determine the instruction from the 10 least significant bits. */
+static const struct spu_opcode *
+get_index_for_opcode (unsigned int insn)
+{
+ const struct spu_opcode *index;
+ unsigned int opcode = insn >> (32-11);
+
+ /* Init the table. This assumes that element 0/opcode 0 (currently
+ * NOP) is always used */
+ if (spu_disassemble_table[0] == 0)
+ init_spu_disassemble ();
+
+ if ((index = spu_disassemble_table[opcode & 0x780]) != 0
+ && index->insn_type == RRR)
+ return index;
+
+ if ((index = spu_disassemble_table[opcode & 0x7f0]) != 0
+ && (index->insn_type == RI18 || index->insn_type == LBT))
+ return index;
+
+ if ((index = spu_disassemble_table[opcode & 0x7f8]) != 0
+ && index->insn_type == RI10)
+ return index;
+
+ if ((index = spu_disassemble_table[opcode & 0x7fc]) != 0
+ && (index->insn_type == RI16))
+ return index;
+
+ if ((index = spu_disassemble_table[opcode & 0x7fe]) != 0
+ && (index->insn_type == RI8))
+ return index;
+
+ if ((index = spu_disassemble_table[opcode & 0x7ff]) != 0)
+ return index;
+
+ return NULL;
+}
+
+/* Print a Spu instruction. */
+
+int
+print_insn_spu (unsigned long insn, unsigned long memaddr)
+{
+ int value;
+ int hex_value;
+ const struct spu_opcode *index;
+ enum spu_insns tag;
+
+ index = get_index_for_opcode (insn);
+
+ if (index == 0)
+ {
+ printf(".long 0x%lx", insn);
+ }
+ else
+ {
+ int i;
+ int paren = 0;
+ tag = (enum spu_insns)(index - spu_opcodes);
+ printf("%s", index->mnemonic);
+ if (tag == M_BI || tag == M_BISL || tag == M_IRET || tag == M_BISLED
+ || tag == M_BIHNZ || tag == M_BIHZ || tag == M_BINZ || tag == M_BIZ
+ || tag == M_SYNC || tag == M_HBR)
+ {
+ int fb = (insn >> (32-18)) & 0x7f;
+ if (fb & 0x40)
+ printf(tag == M_SYNC ? "c" : "p");
+ if (fb & 0x20)
+ printf("d");
+ if (fb & 0x10)
+ printf("e");
+ }
+ if (index->arg[0] != 0)
+ printf("\t");
+ hex_value = 0;
+ for (i = 1; i <= index->arg[0]; i++)
+ {
+ int arg = index->arg[i];
+ if (arg != A_P && !paren && i > 1)
+ printf(",");
+
+ switch (arg)
+ {
+ case A_T:
+ printf("$%lu",
+ DECODE_INSN_RT (insn));
+ break;
+ case A_A:
+ printf("$%lu",
+ DECODE_INSN_RA (insn));
+ break;
+ case A_B:
+ printf("$%lu",
+ DECODE_INSN_RB (insn));
+ break;
+ case A_C:
+ printf("$%lu",
+ DECODE_INSN_RC (insn));
+ break;
+ case A_S:
+ printf("$sp%lu",
+ DECODE_INSN_RA (insn));
+ break;
+ case A_H:
+ printf("$ch%lu",
+ DECODE_INSN_RA (insn));
+ break;
+ case A_P:
+ paren++;
+ printf("(");
+ break;
+ case A_U7A:
+ printf("%lu",
+ 173 - DECODE_INSN_U8 (insn));
+ break;
+ case A_U7B:
+ printf("%lu",
+ 155 - DECODE_INSN_U8 (insn));
+ break;
+ case A_S3:
+ case A_S6:
+ case A_S7:
+ case A_S7N:
+ case A_U3:
+ case A_U5:
+ case A_U6:
+ case A_U7:
+ hex_value = DECODE_INSN_I7 (insn);
+ printf("%d", hex_value);
+ break;
+ case A_S11:
+ print_address(memaddr + DECODE_INSN_I9a (insn) * 4);
+ break;
+ case A_S11I:
+ print_address(memaddr + DECODE_INSN_I9b (insn) * 4);
+ break;
+ case A_S10:
+ case A_S10B:
+ hex_value = DECODE_INSN_I10 (insn);
+ printf("%d", hex_value);
+ break;
+ case A_S14:
+ hex_value = DECODE_INSN_I10 (insn) * 16;
+ printf("%d", hex_value);
+ break;
+ case A_S16:
+ hex_value = DECODE_INSN_I16 (insn);
+ printf("%d", hex_value);
+ break;
+ case A_X16:
+ hex_value = DECODE_INSN_U16 (insn);
+ printf("%u", hex_value);
+ break;
+ case A_R18:
+ value = DECODE_INSN_I16 (insn) * 4;
+ if (value == 0)
+ printf("%d", value);
+ else
+ {
+ hex_value = memaddr + value;
+ print_address(hex_value & 0x3ffff);
+ }
+ break;
+ case A_S18:
+ value = DECODE_INSN_U16 (insn) * 4;
+ if (value == 0)
+ printf("%d", value);
+ else
+ print_address(value);
+ break;
+ case A_U18:
+ value = DECODE_INSN_U18 (insn);
+ if (value == 0 || 1)
+ {
+ hex_value = value;
+ printf("%u", value);
+ }
+ else
+ print_address(value);
+ break;
+ case A_U14:
+ hex_value = DECODE_INSN_U14 (insn);
+ printf("%u", hex_value);
+ break;
+ }
+ if (arg != A_P && paren)
+ {
+ printf(")");
+ paren--;
+ }
+ }
+ if (hex_value > 16)
+ printf("\t# %x", hex_value);
+ }
+ return 4;
+}