arch/tile: factor out <arch/opcode.h> header

The kernel code was using some <asm> headers that included a mix
of hardware-specific information (typically found in Tilera <arch>
headers) and structures, enums, and function declarations supporting
the disassembly function of the tile-desc.c sources.

This change refactors that code so that a hardware-specific, but
OS- and application-agnostic header, is created: <arch/opcode.h>.
This header is then exported to userspace along with the other
<arch> headers and can be used to build userspace code; in particular,
it is used by glibc as part of implementing the backtrace() function.

The new header, together with a header that specifically describes
the disassembly code (<asm/tile-desc.h> with _32 and _64 variants),
replaces the old <asm/opcode-tile*.h> and <asm/opcode_constants*.h>
headers.

As part of this change, we are also renaming the 32-bit constants
from TILE_xxx to TILEPRO_xxx to better reflect the fact that they
are specific to the TILEPro architecture, and not to TILE-Gx
and any successor "tile" architecture chips.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

1 files changed, 483 insertions, 0 deletions

diff --git a/arch/tile/include/asm/tile-desc_64.h b/arch/tile/include/asm/tile-desc_64.h
new file mode 100644
index 000000000000..1819efcba54d
--- /dev/null
+++ b/arch/tile/include/asm/tile-desc_64.h
@@ -0,0 +1,483 @@
+/* TILE-Gx opcode information.
+ *
+ * Copyright 2011 Tilera Corporation. All Rights Reserved.
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation, version 2.
+ *
+ *   This program is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ *   NON INFRINGEMENT.  See the GNU General Public License for
+ *   more details.
+ *
+ *
+ *
+ *
+ *
+ */
+
+#ifndef opcode_tile_h
+#define opcode_tile_h
+
+#include <arch/opcode.h>
+
+
+enum
+{
+  TILEGX_MAX_OPERANDS = 4 /* bfexts */
+};
+
+typedef enum
+{
+  TILEGX_OPC_BPT,
+  TILEGX_OPC_INFO,
+  TILEGX_OPC_INFOL,
+  TILEGX_OPC_MOVE,
+  TILEGX_OPC_MOVEI,
+  TILEGX_OPC_MOVELI,
+  TILEGX_OPC_PREFETCH,
+  TILEGX_OPC_PREFETCH_ADD_L1,
+  TILEGX_OPC_PREFETCH_ADD_L1_FAULT,
+  TILEGX_OPC_PREFETCH_ADD_L2,
+  TILEGX_OPC_PREFETCH_ADD_L2_FAULT,
+  TILEGX_OPC_PREFETCH_ADD_L3,
+  TILEGX_OPC_PREFETCH_ADD_L3_FAULT,
+  TILEGX_OPC_PREFETCH_L1,
+  TILEGX_OPC_PREFETCH_L1_FAULT,
+  TILEGX_OPC_PREFETCH_L2,
+  TILEGX_OPC_PREFETCH_L2_FAULT,
+  TILEGX_OPC_PREFETCH_L3,
+  TILEGX_OPC_PREFETCH_L3_FAULT,
+  TILEGX_OPC_RAISE,
+  TILEGX_OPC_ADD,
+  TILEGX_OPC_ADDI,
+  TILEGX_OPC_ADDLI,
+  TILEGX_OPC_ADDX,
+  TILEGX_OPC_ADDXI,
+  TILEGX_OPC_ADDXLI,
+  TILEGX_OPC_ADDXSC,
+  TILEGX_OPC_AND,
+  TILEGX_OPC_ANDI,
+  TILEGX_OPC_BEQZ,
+  TILEGX_OPC_BEQZT,
+  TILEGX_OPC_BFEXTS,
+  TILEGX_OPC_BFEXTU,
+  TILEGX_OPC_BFINS,
+  TILEGX_OPC_BGEZ,
+  TILEGX_OPC_BGEZT,
+  TILEGX_OPC_BGTZ,
+  TILEGX_OPC_BGTZT,
+  TILEGX_OPC_BLBC,
+  TILEGX_OPC_BLBCT,
+  TILEGX_OPC_BLBS,
+  TILEGX_OPC_BLBST,
+  TILEGX_OPC_BLEZ,
+  TILEGX_OPC_BLEZT,
+  TILEGX_OPC_BLTZ,
+  TILEGX_OPC_BLTZT,
+  TILEGX_OPC_BNEZ,
+  TILEGX_OPC_BNEZT,
+  TILEGX_OPC_CLZ,
+  TILEGX_OPC_CMOVEQZ,
+  TILEGX_OPC_CMOVNEZ,
+  TILEGX_OPC_CMPEQ,
+  TILEGX_OPC_CMPEQI,
+  TILEGX_OPC_CMPEXCH,
+  TILEGX_OPC_CMPEXCH4,
+  TILEGX_OPC_CMPLES,
+  TILEGX_OPC_CMPLEU,
+  TILEGX_OPC_CMPLTS,
+  TILEGX_OPC_CMPLTSI,
+  TILEGX_OPC_CMPLTU,
+  TILEGX_OPC_CMPLTUI,
+  TILEGX_OPC_CMPNE,
+  TILEGX_OPC_CMUL,
+  TILEGX_OPC_CMULA,
+  TILEGX_OPC_CMULAF,
+  TILEGX_OPC_CMULF,
+  TILEGX_OPC_CMULFR,
+  TILEGX_OPC_CMULH,
+  TILEGX_OPC_CMULHR,
+  TILEGX_OPC_CRC32_32,
+  TILEGX_OPC_CRC32_8,
+  TILEGX_OPC_CTZ,
+  TILEGX_OPC_DBLALIGN,
+  TILEGX_OPC_DBLALIGN2,
+  TILEGX_OPC_DBLALIGN4,
+  TILEGX_OPC_DBLALIGN6,
+  TILEGX_OPC_DRAIN,
+  TILEGX_OPC_DTLBPR,
+  TILEGX_OPC_EXCH,
+  TILEGX_OPC_EXCH4,
+  TILEGX_OPC_FDOUBLE_ADD_FLAGS,
+  TILEGX_OPC_FDOUBLE_ADDSUB,
+  TILEGX_OPC_FDOUBLE_MUL_FLAGS,
+  TILEGX_OPC_FDOUBLE_PACK1,
+  TILEGX_OPC_FDOUBLE_PACK2,
+  TILEGX_OPC_FDOUBLE_SUB_FLAGS,
+  TILEGX_OPC_FDOUBLE_UNPACK_MAX,
+  TILEGX_OPC_FDOUBLE_UNPACK_MIN,
+  TILEGX_OPC_FETCHADD,
+  TILEGX_OPC_FETCHADD4,
+  TILEGX_OPC_FETCHADDGEZ,
+  TILEGX_OPC_FETCHADDGEZ4,
+  TILEGX_OPC_FETCHAND,
+  TILEGX_OPC_FETCHAND4,
+  TILEGX_OPC_FETCHOR,
+  TILEGX_OPC_FETCHOR4,
+  TILEGX_OPC_FINV,
+  TILEGX_OPC_FLUSH,
+  TILEGX_OPC_FLUSHWB,
+  TILEGX_OPC_FNOP,
+  TILEGX_OPC_FSINGLE_ADD1,
+  TILEGX_OPC_FSINGLE_ADDSUB2,
+  TILEGX_OPC_FSINGLE_MUL1,
+  TILEGX_OPC_FSINGLE_MUL2,
+  TILEGX_OPC_FSINGLE_PACK1,
+  TILEGX_OPC_FSINGLE_PACK2,
+  TILEGX_OPC_FSINGLE_SUB1,
+  TILEGX_OPC_ICOH,
+  TILEGX_OPC_ILL,
+  TILEGX_OPC_INV,
+  TILEGX_OPC_IRET,
+  TILEGX_OPC_J,
+  TILEGX_OPC_JAL,
+  TILEGX_OPC_JALR,
+  TILEGX_OPC_JALRP,
+  TILEGX_OPC_JR,
+  TILEGX_OPC_JRP,
+  TILEGX_OPC_LD,
+  TILEGX_OPC_LD1S,
+  TILEGX_OPC_LD1S_ADD,
+  TILEGX_OPC_LD1U,
+  TILEGX_OPC_LD1U_ADD,
+  TILEGX_OPC_LD2S,
+  TILEGX_OPC_LD2S_ADD,
+  TILEGX_OPC_LD2U,
+  TILEGX_OPC_LD2U_ADD,
+  TILEGX_OPC_LD4S,
+  TILEGX_OPC_LD4S_ADD,
+  TILEGX_OPC_LD4U,
+  TILEGX_OPC_LD4U_ADD,
+  TILEGX_OPC_LD_ADD,
+  TILEGX_OPC_LDNA,
+  TILEGX_OPC_LDNA_ADD,
+  TILEGX_OPC_LDNT,
+  TILEGX_OPC_LDNT1S,
+  TILEGX_OPC_LDNT1S_ADD,
+  TILEGX_OPC_LDNT1U,
+  TILEGX_OPC_LDNT1U_ADD,
+  TILEGX_OPC_LDNT2S,
+  TILEGX_OPC_LDNT2S_ADD,
+  TILEGX_OPC_LDNT2U,
+  TILEGX_OPC_LDNT2U_ADD,
+  TILEGX_OPC_LDNT4S,
+  TILEGX_OPC_LDNT4S_ADD,
+  TILEGX_OPC_LDNT4U,
+  TILEGX_OPC_LDNT4U_ADD,
+  TILEGX_OPC_LDNT_ADD,
+  TILEGX_OPC_LNK,
+  TILEGX_OPC_MF,
+  TILEGX_OPC_MFSPR,
+  TILEGX_OPC_MM,
+  TILEGX_OPC_MNZ,
+  TILEGX_OPC_MTSPR,
+  TILEGX_OPC_MUL_HS_HS,
+  TILEGX_OPC_MUL_HS_HU,
+  TILEGX_OPC_MUL_HS_LS,
+  TILEGX_OPC_MUL_HS_LU,
+  TILEGX_OPC_MUL_HU_HU,
+  TILEGX_OPC_MUL_HU_LS,
+  TILEGX_OPC_MUL_HU_LU,
+  TILEGX_OPC_MUL_LS_LS,
+  TILEGX_OPC_MUL_LS_LU,
+  TILEGX_OPC_MUL_LU_LU,
+  TILEGX_OPC_MULA_HS_HS,
+  TILEGX_OPC_MULA_HS_HU,
+  TILEGX_OPC_MULA_HS_LS,
+  TILEGX_OPC_MULA_HS_LU,
+  TILEGX_OPC_MULA_HU_HU,
+  TILEGX_OPC_MULA_HU_LS,
+  TILEGX_OPC_MULA_HU_LU,
+  TILEGX_OPC_MULA_LS_LS,
+  TILEGX_OPC_MULA_LS_LU,
+  TILEGX_OPC_MULA_LU_LU,
+  TILEGX_OPC_MULAX,
+  TILEGX_OPC_MULX,
+  TILEGX_OPC_MZ,
+  TILEGX_OPC_NAP,
+  TILEGX_OPC_NOP,
+  TILEGX_OPC_NOR,
+  TILEGX_OPC_OR,
+  TILEGX_OPC_ORI,
+  TILEGX_OPC_PCNT,
+  TILEGX_OPC_REVBITS,
+  TILEGX_OPC_REVBYTES,
+  TILEGX_OPC_ROTL,
+  TILEGX_OPC_ROTLI,
+  TILEGX_OPC_SHL,
+  TILEGX_OPC_SHL16INSLI,
+  TILEGX_OPC_SHL1ADD,
+  TILEGX_OPC_SHL1ADDX,
+  TILEGX_OPC_SHL2ADD,
+  TILEGX_OPC_SHL2ADDX,
+  TILEGX_OPC_SHL3ADD,
+  TILEGX_OPC_SHL3ADDX,
+  TILEGX_OPC_SHLI,
+  TILEGX_OPC_SHLX,
+  TILEGX_OPC_SHLXI,
+  TILEGX_OPC_SHRS,
+  TILEGX_OPC_SHRSI,
+  TILEGX_OPC_SHRU,
+  TILEGX_OPC_SHRUI,
+  TILEGX_OPC_SHRUX,
+  TILEGX_OPC_SHRUXI,
+  TILEGX_OPC_SHUFFLEBYTES,
+  TILEGX_OPC_ST,
+  TILEGX_OPC_ST1,
+  TILEGX_OPC_ST1_ADD,
+  TILEGX_OPC_ST2,
+  TILEGX_OPC_ST2_ADD,
+  TILEGX_OPC_ST4,
+  TILEGX_OPC_ST4_ADD,
+  TILEGX_OPC_ST_ADD,
+  TILEGX_OPC_STNT,
+  TILEGX_OPC_STNT1,
+  TILEGX_OPC_STNT1_ADD,
+  TILEGX_OPC_STNT2,
+  TILEGX_OPC_STNT2_ADD,
+  TILEGX_OPC_STNT4,
+  TILEGX_OPC_STNT4_ADD,
+  TILEGX_OPC_STNT_ADD,
+  TILEGX_OPC_SUB,
+  TILEGX_OPC_SUBX,
+  TILEGX_OPC_SUBXSC,
+  TILEGX_OPC_SWINT0,
+  TILEGX_OPC_SWINT1,
+  TILEGX_OPC_SWINT2,
+  TILEGX_OPC_SWINT3,
+  TILEGX_OPC_TBLIDXB0,
+  TILEGX_OPC_TBLIDXB1,
+  TILEGX_OPC_TBLIDXB2,
+  TILEGX_OPC_TBLIDXB3,
+  TILEGX_OPC_V1ADD,
+  TILEGX_OPC_V1ADDI,
+  TILEGX_OPC_V1ADDUC,
+  TILEGX_OPC_V1ADIFFU,
+  TILEGX_OPC_V1AVGU,
+  TILEGX_OPC_V1CMPEQ,
+  TILEGX_OPC_V1CMPEQI,
+  TILEGX_OPC_V1CMPLES,
+  TILEGX_OPC_V1CMPLEU,
+  TILEGX_OPC_V1CMPLTS,
+  TILEGX_OPC_V1CMPLTSI,
+  TILEGX_OPC_V1CMPLTU,
+  TILEGX_OPC_V1CMPLTUI,
+  TILEGX_OPC_V1CMPNE,
+  TILEGX_OPC_V1DDOTPU,
+  TILEGX_OPC_V1DDOTPUA,
+  TILEGX_OPC_V1DDOTPUS,
+  TILEGX_OPC_V1DDOTPUSA,
+  TILEGX_OPC_V1DOTP,
+  TILEGX_OPC_V1DOTPA,
+  TILEGX_OPC_V1DOTPU,
+  TILEGX_OPC_V1DOTPUA,
+  TILEGX_OPC_V1DOTPUS,
+  TILEGX_OPC_V1DOTPUSA,
+  TILEGX_OPC_V1INT_H,
+  TILEGX_OPC_V1INT_L,
+  TILEGX_OPC_V1MAXU,
+  TILEGX_OPC_V1MAXUI,
+  TILEGX_OPC_V1MINU,
+  TILEGX_OPC_V1MINUI,
+  TILEGX_OPC_V1MNZ,
+  TILEGX_OPC_V1MULTU,
+  TILEGX_OPC_V1MULU,
+  TILEGX_OPC_V1MULUS,
+  TILEGX_OPC_V1MZ,
+  TILEGX_OPC_V1SADAU,
+  TILEGX_OPC_V1SADU,
+  TILEGX_OPC_V1SHL,
+  TILEGX_OPC_V1SHLI,
+  TILEGX_OPC_V1SHRS,
+  TILEGX_OPC_V1SHRSI,
+  TILEGX_OPC_V1SHRU,
+  TILEGX_OPC_V1SHRUI,
+  TILEGX_OPC_V1SUB,
+  TILEGX_OPC_V1SUBUC,
+  TILEGX_OPC_V2ADD,
+  TILEGX_OPC_V2ADDI,
+  TILEGX_OPC_V2ADDSC,
+  TILEGX_OPC_V2ADIFFS,
+  TILEGX_OPC_V2AVGS,
+  TILEGX_OPC_V2CMPEQ,
+  TILEGX_OPC_V2CMPEQI,
+  TILEGX_OPC_V2CMPLES,
+  TILEGX_OPC_V2CMPLEU,
+  TILEGX_OPC_V2CMPLTS,
+  TILEGX_OPC_V2CMPLTSI,
+  TILEGX_OPC_V2CMPLTU,
+  TILEGX_OPC_V2CMPLTUI,
+  TILEGX_OPC_V2CMPNE,
+  TILEGX_OPC_V2DOTP,
+  TILEGX_OPC_V2DOTPA,
+  TILEGX_OPC_V2INT_H,
+  TILEGX_OPC_V2INT_L,
+  TILEGX_OPC_V2MAXS,
+  TILEGX_OPC_V2MAXSI,
+  TILEGX_OPC_V2MINS,
+  TILEGX_OPC_V2MINSI,
+  TILEGX_OPC_V2MNZ,
+  TILEGX_OPC_V2MULFSC,
+  TILEGX_OPC_V2MULS,
+  TILEGX_OPC_V2MULTS,
+  TILEGX_OPC_V2MZ,
+  TILEGX_OPC_V2PACKH,
+  TILEGX_OPC_V2PACKL,
+  TILEGX_OPC_V2PACKUC,
+  TILEGX_OPC_V2SADAS,
+  TILEGX_OPC_V2SADAU,
+  TILEGX_OPC_V2SADS,
+  TILEGX_OPC_V2SADU,
+  TILEGX_OPC_V2SHL,
+  TILEGX_OPC_V2SHLI,
+  TILEGX_OPC_V2SHLSC,
+  TILEGX_OPC_V2SHRS,
+  TILEGX_OPC_V2SHRSI,
+  TILEGX_OPC_V2SHRU,
+  TILEGX_OPC_V2SHRUI,
+  TILEGX_OPC_V2SUB,
+  TILEGX_OPC_V2SUBSC,
+  TILEGX_OPC_V4ADD,
+  TILEGX_OPC_V4ADDSC,
+  TILEGX_OPC_V4INT_H,
+  TILEGX_OPC_V4INT_L,
+  TILEGX_OPC_V4PACKSC,
+  TILEGX_OPC_V4SHL,
+  TILEGX_OPC_V4SHLSC,
+  TILEGX_OPC_V4SHRS,
+  TILEGX_OPC_V4SHRU,
+  TILEGX_OPC_V4SUB,
+  TILEGX_OPC_V4SUBSC,
+  TILEGX_OPC_WH64,
+  TILEGX_OPC_XOR,
+  TILEGX_OPC_XORI,
+  TILEGX_OPC_NONE
+} tilegx_mnemonic;
+
+
+
+typedef enum
+{
+  TILEGX_PIPELINE_X0,
+  TILEGX_PIPELINE_X1,
+  TILEGX_PIPELINE_Y0,
+  TILEGX_PIPELINE_Y1,
+  TILEGX_PIPELINE_Y2,
+} tilegx_pipeline;
+
+#define tilegx_is_x_pipeline(p) ((int)(p) <= (int)TILEGX_PIPELINE_X1)
+
+typedef enum
+{
+  TILEGX_OP_TYPE_REGISTER,
+  TILEGX_OP_TYPE_IMMEDIATE,
+  TILEGX_OP_TYPE_ADDRESS,
+  TILEGX_OP_TYPE_SPR
+} tilegx_operand_type;
+
+struct tilegx_operand
+{
+  /* Is this operand a register, immediate or address? */
+  tilegx_operand_type type;
+
+  /* The default relocation type for this operand.  */
+  signed int default_reloc : 16;
+
+  /* How many bits is this value? (used for range checking) */
+  unsigned int num_bits : 5;
+
+  /* Is the value signed? (used for range checking) */
+  unsigned int is_signed : 1;
+
+  /* Is this operand a source register? */
+  unsigned int is_src_reg : 1;
+
+  /* Is this operand written? (i.e. is it a destination register) */
+  unsigned int is_dest_reg : 1;
+
+  /* Is this operand PC-relative? */
+  unsigned int is_pc_relative : 1;
+
+  /* By how many bits do we right shift the value before inserting? */
+  unsigned int rightshift : 2;
+
+  /* Return the bits for this operand to be ORed into an existing bundle. */
+  tilegx_bundle_bits (*insert) (int op);
+
+  /* Extract this operand and return it. */
+  unsigned int (*extract) (tilegx_bundle_bits bundle);
+};
+
+
+extern const struct tilegx_operand tilegx_operands[];
+
+/* One finite-state machine per pipe for rapid instruction decoding. */
+extern const unsigned short * const
+tilegx_bundle_decoder_fsms[TILEGX_NUM_PIPELINE_ENCODINGS];
+
+
+struct tilegx_opcode
+{
+  /* The opcode mnemonic, e.g. "add" */
+  const char *name;
+
+  /* The enum value for this mnemonic. */
+  tilegx_mnemonic mnemonic;
+
+  /* A bit mask of which of the five pipes this instruction
+     is compatible with:
+     X0  0x01
+     X1  0x02
+     Y0  0x04
+     Y1  0x08
+     Y2  0x10 */
+  unsigned char pipes;
+
+  /* How many operands are there? */
+  unsigned char num_operands;
+
+  /* Which register does this write implicitly, or TREG_ZERO if none? */
+  unsigned char implicitly_written_register;
+
+  /* Can this be bundled with other instructions (almost always true). */
+  unsigned char can_bundle;
+
+  /* The description of the operands. Each of these is an
+   * index into the tilegx_operands[] table. */
+  unsigned char operands[TILEGX_NUM_PIPELINE_ENCODINGS][TILEGX_MAX_OPERANDS];
+
+};
+
+extern const struct tilegx_opcode tilegx_opcodes[];
+
+/* Used for non-textual disassembly into structs. */
+struct tilegx_decoded_instruction
+{
+  const struct tilegx_opcode *opcode;
+  const struct tilegx_operand *operands[TILEGX_MAX_OPERANDS];
+  long long operand_values[TILEGX_MAX_OPERANDS];
+};
+
+
+/* Disassemble a bundle into a struct for machine processing. */
+extern int parse_insn_tilegx(tilegx_bundle_bits bits,
+                             unsigned long long pc,
+                             struct tilegx_decoded_instruction
+                             decoded[TILEGX_MAX_INSTRUCTIONS_PER_BUNDLE]);
+
+
+
+#endif /* opcode_tilegx_h */