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

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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>
This commit is contained in:
Chris Metcalf
2011-11-02 23:02:17 -04:00
parent aeddea5d37
commit eb7c792da5
15 changed files with 4536 additions and 4359 deletions
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19
arch/tile/kernel/backtrace.c
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@ -1,5 +1,5 @@
/*
* Copyright 2010 Tilera Corporation. All Rights Reserved.
* 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
@ -15,13 +15,11 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <asm/backtrace.h>
#include <asm/opcode-tile.h>
#include <asm/tile-desc.h>
#include <arch/abi.h>
#ifdef __tilegx__
#define tile_bundle_bits tilegx_bundle_bits
#define TILE_MAX_INSTRUCTIONS_PER_BUNDLE TILEGX_MAX_INSTRUCTIONS_PER_BUNDLE
#define TILE_BUNDLE_ALIGNMENT_IN_BYTES TILEGX_BUNDLE_ALIGNMENT_IN_BYTES
#define tile_decoded_instruction tilegx_decoded_instruction
#define tile_mnemonic tilegx_mnemonic
#define parse_insn_tile parse_insn_tilegx
@ -35,7 +33,18 @@
#define OPCODE_STORE TILEGX_OPC_ST
typedef long long bt_int_reg_t;
#else
#define OPCODE_STORE TILE_OPC_SW
#define TILE_MAX_INSTRUCTIONS_PER_BUNDLE TILEPRO_MAX_INSTRUCTIONS_PER_BUNDLE
#define tile_decoded_instruction tilepro_decoded_instruction
#define tile_mnemonic tilepro_mnemonic
#define parse_insn_tile parse_insn_tilepro
#define TILE_OPC_IRET TILEPRO_OPC_IRET
#define TILE_OPC_ADDI TILEPRO_OPC_ADDI
#define TILE_OPC_ADDLI TILEPRO_OPC_ADDLI
#define TILE_OPC_INFO TILEPRO_OPC_INFO
#define TILE_OPC_INFOL TILEPRO_OPC_INFOL
#define TILE_OPC_JRP TILEPRO_OPC_JRP
#define TILE_OPC_MOVE TILEPRO_OPC_MOVE
#define OPCODE_STORE TILEPRO_OPC_SW
typedef int bt_int_reg_t;
#endif