/src/freebsd/sys/mips/include/asm.h
C Header | 869 lines | 588 code | 82 blank | 199 comment | 30 complexity | 641f0532bf75800e74cec39703154b37 MD5 | raw file
Possible License(s): CC0-1.0, MIT, LGPL-2.0, LGPL-3.0, WTFPL, GPL-2.0, BSD-2-Clause, AGPL-3.0, CC-BY-SA-3.0, MPL-2.0, JSON, BSD-3-Clause-No-Nuclear-License-2014, LGPL-2.1, CPL-1.0, AGPL-1.0, 0BSD, ISC, Apache-2.0, GPL-3.0, IPL-1.0, MPL-2.0-no-copyleft-exception, BSD-3-Clause
- /* $NetBSD: asm.h,v 1.29 2000/12/14 21:29:51 jeffs Exp $ */
- /*
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Ralph Campbell.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)machAsmDefs.h 8.1 (Berkeley) 6/10/93
- * JNPR: asm.h,v 1.10 2007/08/09 11:23:32 katta
- * $FreeBSD$
- */
- /*
- * machAsmDefs.h --
- *
- * Macros used when writing assembler programs.
- *
- * Copyright (C) 1989 Digital Equipment Corporation.
- * Permission to use, copy, modify, and distribute this software and
- * its documentation for any purpose and without fee is hereby granted,
- * provided that the above copyright notice appears in all copies.
- * Digital Equipment Corporation makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- *
- * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machAsmDefs.h,
- * v 1.2 89/08/15 18:28:24 rab Exp SPRITE (DECWRL)
- */
- #ifndef _MACHINE_ASM_H_
- #define _MACHINE_ASM_H_
- #ifndef NO_REG_DEFS
- #include <machine/regdef.h>
- #endif
- #include <machine/endian.h>
- #include <machine/cdefs.h>
- #undef __FBSDID
- #if !defined(lint) && !defined(STRIP_FBSDID)
- #define __FBSDID(s) .ident s
- #else
- #define __FBSDID(s) /* nothing */
- #endif
- /*
- * Define -pg profile entry code.
- * Must always be noreorder, must never use a macro instruction
- * Final addiu to t9 must always equal the size of this _KERN_MCOUNT
- */
- #define _KERN_MCOUNT \
- .set push; \
- .set noreorder; \
- .set noat; \
- subu sp,sp,16; \
- sw t9,12(sp); \
- move AT,ra; \
- lui t9,%hi(_mcount); \
- addiu t9,t9,%lo(_mcount); \
- jalr t9; \
- nop; \
- lw t9,4(sp); \
- addiu sp,sp,8; \
- addiu t9,t9,40; \
- .set pop;
- #ifdef GPROF
- #define MCOUNT _KERN_MCOUNT
- #else
- #define MCOUNT
- #endif
- #define _C_LABEL(x) x
- #ifdef USE_AENT
- #define AENT(x) \
- .aent x, 0
- #else
- #define AENT(x)
- #endif
- /*
- * WARN_REFERENCES: create a warning if the specified symbol is referenced
- */
- #define WARN_REFERENCES(_sym,_msg) \
- .section .gnu.warning. ## _sym ; .ascii _msg ; .text
- /*
- * These are temp registers whose names can be used in either the old
- * or new ABI, although they map to different physical registers. In
- * the old ABI, they map to t4-t7, and in the new ABI, they map to a4-a7.
- *
- * Because they overlap with the last 4 arg regs in the new ABI, ta0-ta3
- * should be used only when we need more than t0-t3.
- */
- #if defined(__mips_n32) || defined(__mips_n64)
- #define ta0 $8
- #define ta1 $9
- #define ta2 $10
- #define ta3 $11
- #else
- #define ta0 $12
- #define ta1 $13
- #define ta2 $14
- #define ta3 $15
- #endif /* __mips_n32 || __mips_n64 */
- #ifdef __ELF__
- # define _C_LABEL(x) x
- #else
- # define _C_LABEL(x) _ ## x
- #endif
- /*
- * WEAK_ALIAS: create a weak alias.
- */
- #define WEAK_ALIAS(alias,sym) \
- .weak alias; \
- alias = sym
- /*
- * STRONG_ALIAS: create a strong alias.
- */
- #define STRONG_ALIAS(alias,sym) \
- .globl alias; \
- alias = sym
- #define GLOBAL(sym) \
- .globl sym; sym:
- #define ENTRY(sym) \
- .text; .globl sym; .ent sym; sym:
- #define ASM_ENTRY(sym) \
- .text; .globl sym; .type sym,@function; sym:
- /*
- * LEAF
- * A leaf routine does
- * - call no other function,
- * - never use any register that callee-saved (S0-S8), and
- * - not use any local stack storage.
- */
- #define LEAF(x) \
- .globl _C_LABEL(x); \
- .ent _C_LABEL(x), 0; \
- _C_LABEL(x): ; \
- .frame sp, 0, ra; \
- MCOUNT
- /*
- * LEAF_NOPROFILE
- * No profilable leaf routine.
- */
- #define LEAF_NOPROFILE(x) \
- .globl _C_LABEL(x); \
- .ent _C_LABEL(x), 0; \
- _C_LABEL(x): ; \
- .frame sp, 0, ra
- /*
- * XLEAF
- * declare alternate entry to leaf routine
- */
- #define XLEAF(x) \
- .globl _C_LABEL(x); \
- AENT (_C_LABEL(x)); \
- _C_LABEL(x):
- /*
- * NESTED
- * A function calls other functions and needs
- * therefore stack space to save/restore registers.
- */
- #define NESTED(x, fsize, retpc) \
- .globl _C_LABEL(x); \
- .ent _C_LABEL(x), 0; \
- _C_LABEL(x): ; \
- .frame sp, fsize, retpc; \
- MCOUNT
- /*
- * NESTED_NOPROFILE(x)
- * No profilable nested routine.
- */
- #define NESTED_NOPROFILE(x, fsize, retpc) \
- .globl _C_LABEL(x); \
- .ent _C_LABEL(x), 0; \
- _C_LABEL(x): ; \
- .frame sp, fsize, retpc
- /*
- * XNESTED
- * declare alternate entry point to nested routine.
- */
- #define XNESTED(x) \
- .globl _C_LABEL(x); \
- AENT (_C_LABEL(x)); \
- _C_LABEL(x):
- /*
- * END
- * Mark end of a procedure.
- */
- #define END(x) \
- .end _C_LABEL(x)
- /*
- * IMPORT -- import external symbol
- */
- #define IMPORT(sym, size) \
- .extern _C_LABEL(sym),size
- /*
- * EXPORT -- export definition of symbol
- */
- #define EXPORT(x) \
- .globl _C_LABEL(x); \
- _C_LABEL(x):
- /*
- * VECTOR
- * exception vector entrypoint
- * XXX: regmask should be used to generate .mask
- */
- #define VECTOR(x, regmask) \
- .ent _C_LABEL(x),0; \
- EXPORT(x); \
- #define VECTOR_END(x) \
- EXPORT(x ## End); \
- END(x)
- /*
- * Macros to panic and printf from assembly language.
- */
- #define PANIC(msg) \
- PTR_LA a0, 9f; \
- jal _C_LABEL(panic); \
- nop; \
- MSG(msg)
- #define PANIC_KSEG0(msg, reg) PANIC(msg)
- #define PRINTF(msg) \
- PTR_LA a0, 9f; \
- jal _C_LABEL(printf); \
- nop; \
- MSG(msg)
- #define MSG(msg) \
- .rdata; \
- 9: .asciiz msg; \
- .text
- #define ASMSTR(str) \
- .asciiz str; \
- .align 3
- /*
- * Call ast if required
- *
- * XXX Do we really need to disable interrupts?
- */
- #define DO_AST \
- 44: \
- mfc0 t0, MIPS_COP_0_STATUS ;\
- and a0, t0, MIPS_SR_INT_IE ;\
- xor t0, a0, t0 ;\
- mtc0 t0, MIPS_COP_0_STATUS ;\
- COP0_SYNC ;\
- GET_CPU_PCPU(s1) ;\
- PTR_L s3, PC_CURPCB(s1) ;\
- PTR_L s1, PC_CURTHREAD(s1) ;\
- lw s2, TD_FLAGS(s1) ;\
- li s0, TDF_ASTPENDING | TDF_NEEDRESCHED;\
- and s2, s0 ;\
- mfc0 t0, MIPS_COP_0_STATUS ;\
- or t0, a0, t0 ;\
- mtc0 t0, MIPS_COP_0_STATUS ;\
- COP0_SYNC ;\
- beq s2, zero, 4f ;\
- nop ;\
- PTR_LA s0, _C_LABEL(ast) ;\
- jalr s0 ;\
- PTR_ADDU a0, s3, U_PCB_REGS ;\
- j 44b ;\
- nop ;\
- 4:
- /*
- * XXX retain dialects XXX
- */
- #define ALEAF(x) XLEAF(x)
- #define NLEAF(x) LEAF_NOPROFILE(x)
- #define NON_LEAF(x, fsize, retpc) NESTED(x, fsize, retpc)
- #define NNON_LEAF(x, fsize, retpc) NESTED_NOPROFILE(x, fsize, retpc)
- #if defined(__mips_o32)
- #define SZREG 4
- #else
- #define SZREG 8
- #endif
- #if defined(__mips_o32) || defined(__mips_o64)
- #define ALSK 7 /* stack alignment */
- #define ALMASK -7 /* stack alignment */
- #define SZFPREG 4
- #define FP_L lwc1
- #define FP_S swc1
- #else
- #define ALSK 15 /* stack alignment */
- #define ALMASK -15 /* stack alignment */
- #define SZFPREG 8
- #define FP_L ldc1
- #define FP_S sdc1
- #endif
- /*
- * standard callframe {
- * register_t cf_pad[N]; o32/64 (N=0), n32 (N=1) n64 (N=1)
- * register_t cf_args[4]; arg0 - arg3 (only on o32 and o64)
- * register_t cf_gp; global pointer (only on n32 and n64)
- * register_t cf_sp; frame pointer
- * register_t cf_ra; return address
- * };
- */
- #if defined(__mips_o32) || defined(__mips_o64)
- #define CALLFRAME_SIZ (SZREG * (4 + 2))
- #define CALLFRAME_S0 0
- #elif defined(__mips_n32) || defined(__mips_n64)
- #define CALLFRAME_SIZ (SZREG * 4)
- #define CALLFRAME_S0 (CALLFRAME_SIZ - 4 * SZREG)
- #endif
- #ifndef _KERNEL
- #define CALLFRAME_GP (CALLFRAME_SIZ - 3 * SZREG)
- #endif
- #define CALLFRAME_SP (CALLFRAME_SIZ - 2 * SZREG)
- #define CALLFRAME_RA (CALLFRAME_SIZ - 1 * SZREG)
- /*
- * Endian-independent assembly-code aliases for unaligned memory accesses.
- */
- #if _BYTE_ORDER == _LITTLE_ENDIAN
- # define LWHI lwr
- # define LWLO lwl
- # define SWHI swr
- # define SWLO swl
- # if SZREG == 4
- # define REG_LHI lwr
- # define REG_LLO lwl
- # define REG_SHI swr
- # define REG_SLO swl
- # else
- # define REG_LHI ldr
- # define REG_LLO ldl
- # define REG_SHI sdr
- # define REG_SLO sdl
- # endif
- #endif
- #if _BYTE_ORDER == _BIG_ENDIAN
- # define LWHI lwl
- # define LWLO lwr
- # define SWHI swl
- # define SWLO swr
- # if SZREG == 4
- # define REG_LHI lwl
- # define REG_LLO lwr
- # define REG_SHI swl
- # define REG_SLO swr
- # else
- # define REG_LHI ldl
- # define REG_LLO ldr
- # define REG_SHI sdl
- # define REG_SLO sdr
- # endif
- #endif
- /*
- * While it would be nice to be compatible with the SGI
- * REG_L and REG_S macros, because they do not take parameters, it
- * is impossible to use them with the _MIPS_SIM_ABIX32 model.
- *
- * These macros hide the use of mips3 instructions from the
- * assembler to prevent the assembler from generating 64-bit style
- * ABI calls.
- */
- #if _MIPS_SZPTR == 32
- #define PTR_ADD add
- #define PTR_ADDI addi
- #define PTR_ADDU addu
- #define PTR_ADDIU addiu
- #define PTR_SUB add
- #define PTR_SUBI subi
- #define PTR_SUBU subu
- #define PTR_SUBIU subu
- #define PTR_L lw
- #define PTR_LA la
- #define PTR_LI li
- #define PTR_S sw
- #define PTR_SLL sll
- #define PTR_SLLV sllv
- #define PTR_SRL srl
- #define PTR_SRLV srlv
- #define PTR_SRA sra
- #define PTR_SRAV srav
- #define PTR_LL ll
- #define PTR_SC sc
- #define PTR_WORD .word
- #define PTR_SCALESHIFT 2
- #else /* _MIPS_SZPTR == 64 */
- #define PTR_ADD dadd
- #define PTR_ADDI daddi
- #define PTR_ADDU daddu
- #define PTR_ADDIU daddiu
- #define PTR_SUB dadd
- #define PTR_SUBI dsubi
- #define PTR_SUBU dsubu
- #define PTR_SUBIU dsubu
- #define PTR_L ld
- #define PTR_LA dla
- #define PTR_LI dli
- #define PTR_S sd
- #define PTR_SLL dsll
- #define PTR_SLLV dsllv
- #define PTR_SRL dsrl
- #define PTR_SRLV dsrlv
- #define PTR_SRA dsra
- #define PTR_SRAV dsrav
- #define PTR_LL lld
- #define PTR_SC scd
- #define PTR_WORD .dword
- #define PTR_SCALESHIFT 3
- #endif /* _MIPS_SZPTR == 64 */
- #if _MIPS_SZINT == 32
- #define INT_ADD add
- #define INT_ADDI addi
- #define INT_ADDU addu
- #define INT_ADDIU addiu
- #define INT_SUB add
- #define INT_SUBI subi
- #define INT_SUBU subu
- #define INT_SUBIU subu
- #define INT_L lw
- #define INT_LA la
- #define INT_S sw
- #define INT_SLL sll
- #define INT_SLLV sllv
- #define INT_SRL srl
- #define INT_SRLV srlv
- #define INT_SRA sra
- #define INT_SRAV srav
- #define INT_LL ll
- #define INT_SC sc
- #define INT_WORD .word
- #define INT_SCALESHIFT 2
- #else
- #define INT_ADD dadd
- #define INT_ADDI daddi
- #define INT_ADDU daddu
- #define INT_ADDIU daddiu
- #define INT_SUB dadd
- #define INT_SUBI dsubi
- #define INT_SUBU dsubu
- #define INT_SUBIU dsubu
- #define INT_L ld
- #define INT_LA dla
- #define INT_S sd
- #define INT_SLL dsll
- #define INT_SLLV dsllv
- #define INT_SRL dsrl
- #define INT_SRLV dsrlv
- #define INT_SRA dsra
- #define INT_SRAV dsrav
- #define INT_LL lld
- #define INT_SC scd
- #define INT_WORD .dword
- #define INT_SCALESHIFT 3
- #endif
- #if _MIPS_SZLONG == 32
- #define LONG_ADD add
- #define LONG_ADDI addi
- #define LONG_ADDU addu
- #define LONG_ADDIU addiu
- #define LONG_SUB add
- #define LONG_SUBI subi
- #define LONG_SUBU subu
- #define LONG_SUBIU subu
- #define LONG_L lw
- #define LONG_LA la
- #define LONG_S sw
- #define LONG_SLL sll
- #define LONG_SLLV sllv
- #define LONG_SRL srl
- #define LONG_SRLV srlv
- #define LONG_SRA sra
- #define LONG_SRAV srav
- #define LONG_LL ll
- #define LONG_SC sc
- #define LONG_WORD .word
- #define LONG_SCALESHIFT 2
- #else
- #define LONG_ADD dadd
- #define LONG_ADDI daddi
- #define LONG_ADDU daddu
- #define LONG_ADDIU daddiu
- #define LONG_SUB dadd
- #define LONG_SUBI dsubi
- #define LONG_SUBU dsubu
- #define LONG_SUBIU dsubu
- #define LONG_L ld
- #define LONG_LA dla
- #define LONG_S sd
- #define LONG_SLL dsll
- #define LONG_SLLV dsllv
- #define LONG_SRL dsrl
- #define LONG_SRLV dsrlv
- #define LONG_SRA dsra
- #define LONG_SRAV dsrav
- #define LONG_LL lld
- #define LONG_SC scd
- #define LONG_WORD .dword
- #define LONG_SCALESHIFT 3
- #endif
- #if SZREG == 4
- #define REG_L lw
- #define REG_S sw
- #define REG_LI li
- #define REG_ADDU addu
- #define REG_SLL sll
- #define REG_SLLV sllv
- #define REG_SRL srl
- #define REG_SRLV srlv
- #define REG_SRA sra
- #define REG_SRAV srav
- #define REG_LL ll
- #define REG_SC sc
- #define REG_SCALESHIFT 2
- #else
- #define REG_L ld
- #define REG_S sd
- #define REG_LI dli
- #define REG_ADDU daddu
- #define REG_SLL dsll
- #define REG_SLLV dsllv
- #define REG_SRL dsrl
- #define REG_SRLV dsrlv
- #define REG_SRA dsra
- #define REG_SRAV dsrav
- #define REG_LL lld
- #define REG_SC scd
- #define REG_SCALESHIFT 3
- #endif
- #if _MIPS_ISA == _MIPS_ISA_MIPS1 || _MIPS_ISA == _MIPS_ISA_MIPS2 || \
- _MIPS_ISA == _MIPS_ISA_MIPS32
- #define MFC0 mfc0
- #define MTC0 mtc0
- #endif
- #if _MIPS_ISA == _MIPS_ISA_MIPS3 || _MIPS_ISA == _MIPS_ISA_MIPS4 || \
- _MIPS_ISA == _MIPS_ISA_MIPS64
- #define MFC0 dmfc0
- #define MTC0 dmtc0
- #endif
- #if defined(__mips_o32) || defined(__mips_o64)
- #ifdef __ABICALLS__
- #define CPRESTORE(r) .cprestore r
- #define CPLOAD(r) .cpload r
- #else
- #define CPRESTORE(r) /* not needed */
- #define CPLOAD(r) /* not needed */
- #endif
- #define SETUP_GP \
- .set push; \
- .set noreorder; \
- .cpload t9; \
- .set pop
- #define SETUP_GPX(r) \
- .set push; \
- .set noreorder; \
- move r,ra; /* save old ra */ \
- bal 7f; \
- nop; \
- 7: .cpload ra; \
- move ra,r; \
- .set pop
- #define SETUP_GPX_L(r,lbl) \
- .set push; \
- .set noreorder; \
- move r,ra; /* save old ra */ \
- bal lbl; \
- nop; \
- lbl: .cpload ra; \
- move ra,r; \
- .set pop
- #define SAVE_GP(x) .cprestore x
- #define SETUP_GP64(a,b) /* n32/n64 specific */
- #define SETUP_GP64_R(a,b) /* n32/n64 specific */
- #define SETUP_GPX64(a,b) /* n32/n64 specific */
- #define SETUP_GPX64_L(a,b,c) /* n32/n64 specific */
- #define RESTORE_GP64 /* n32/n64 specific */
- #define USE_ALT_CP(a) /* n32/n64 specific */
- #endif /* __mips_o32 || __mips_o64 */
- #if defined(__mips_o32) || defined(__mips_o64)
- #define REG_PROLOGUE .set push
- #define REG_EPILOGUE .set pop
- #endif
- #if defined(__mips_n32) || defined(__mips_n64)
- #define REG_PROLOGUE .set push ; .set mips3
- #define REG_EPILOGUE .set pop
- #endif
- #if defined(__mips_n32) || defined(__mips_n64)
- #define SETUP_GP /* o32 specific */
- #define SETUP_GPX(r) /* o32 specific */
- #define SETUP_GPX_L(r,lbl) /* o32 specific */
- #define SAVE_GP(x) /* o32 specific */
- #define SETUP_GP64(a,b) .cpsetup $25, a, b
- #define SETUP_GPX64(a,b) \
- .set push; \
- move b,ra; \
- .set noreorder; \
- bal 7f; \
- nop; \
- 7: .set pop; \
- .cpsetup ra, a, 7b; \
- move ra,b
- #define SETUP_GPX64_L(a,b,c) \
- .set push; \
- move b,ra; \
- .set noreorder; \
- bal c; \
- nop; \
- c: .set pop; \
- .cpsetup ra, a, c; \
- move ra,b
- #define RESTORE_GP64 .cpreturn
- #define USE_ALT_CP(a) .cplocal a
- #endif /* __mips_n32 || __mips_n64 */
- #define mfc0_macro(data, spr) \
- __asm __volatile ("mfc0 %0, $%1" \
- : "=r" (data) /* outputs */ \
- : "i" (spr)); /* inputs */
- #define mtc0_macro(data, spr) \
- __asm __volatile ("mtc0 %0, $%1" \
- : /* outputs */ \
- : "r" (data), "i" (spr)); /* inputs */
- #define cfc0_macro(data, spr) \
- __asm __volatile ("cfc0 %0, $%1" \
- : "=r" (data) /* outputs */ \
- : "i" (spr)); /* inputs */
- #define ctc0_macro(data, spr) \
- __asm __volatile ("ctc0 %0, $%1" \
- : /* outputs */ \
- : "r" (data), "i" (spr)); /* inputs */
- #define lbu_macro(data, addr) \
- __asm __volatile ("lbu %0, 0x0(%1)" \
- : "=r" (data) /* outputs */ \
- : "r" (addr)); /* inputs */
- #define lb_macro(data, addr) \
- __asm __volatile ("lb %0, 0x0(%1)" \
- : "=r" (data) /* outputs */ \
- : "r" (addr)); /* inputs */
- #define lwl_macro(data, addr) \
- __asm __volatile ("lwl %0, 0x0(%1)" \
- : "=r" (data) /* outputs */ \
- : "r" (addr)); /* inputs */
- #define lwr_macro(data, addr) \
- __asm __volatile ("lwr %0, 0x0(%1)" \
- : "=r" (data) /* outputs */ \
- : "r" (addr)); /* inputs */
- #define ldl_macro(data, addr) \
- __asm __volatile ("ldl %0, 0x0(%1)" \
- : "=r" (data) /* outputs */ \
- : "r" (addr)); /* inputs */
- #define ldr_macro(data, addr) \
- __asm __volatile ("ldr %0, 0x0(%1)" \
- : "=r" (data) /* outputs */ \
- : "r" (addr)); /* inputs */
- #define sb_macro(data, addr) \
- __asm __volatile ("sb %0, 0x0(%1)" \
- : /* outputs */ \
- : "r" (data), "r" (addr)); /* inputs */
- #define swl_macro(data, addr) \
- __asm __volatile ("swl %0, 0x0(%1)" \
- : /* outputs */ \
- : "r" (data), "r" (addr)); /* inputs */
- #define swr_macro(data, addr) \
- __asm __volatile ("swr %0, 0x0(%1)" \
- : /* outputs */ \
- : "r" (data), "r" (addr)); /* inputs */
- #define sdl_macro(data, addr) \
- __asm __volatile ("sdl %0, 0x0(%1)" \
- : /* outputs */ \
- : "r" (data), "r" (addr)); /* inputs */
- #define sdr_macro(data, addr) \
- __asm __volatile ("sdr %0, 0x0(%1)" \
- : /* outputs */ \
- : "r" (data), "r" (addr)); /* inputs */
- #define mfgr_macro(data, gr) \
- __asm __volatile ("move %0, $%1" \
- : "=r" (data) /* outputs */ \
- : "i" (gr)); /* inputs */
- #define dmfc0_macro(data, spr) \
- __asm __volatile ("dmfc0 %0, $%1" \
- : "=r" (data) /* outputs */ \
- : "i" (spr)); /* inputs */
- #define dmtc0_macro(data, spr, sel) \
- __asm __volatile ("dmtc0 %0, $%1, %2" \
- : /* no outputs */ \
- : "r" (data), "i" (spr), "i" (sel)); /* inputs */
- /*
- * The DYNAMIC_STATUS_MASK option adds an additional masking operation
- * when updating the hardware interrupt mask in the status register.
- *
- * This is useful for platforms that need to at run-time mask
- * interrupts based on motherboard configuration or to handle
- * slowly clearing interrupts.
- *
- * XXX this is only currently implemented for mips3.
- */
- #ifdef MIPS_DYNAMIC_STATUS_MASK
- #define DYNAMIC_STATUS_MASK(sr,scratch) \
- lw scratch, mips_dynamic_status_mask; \
- and sr, sr, scratch
- #define DYNAMIC_STATUS_MASK_TOUSER(sr,scratch1) \
- ori sr, (MIPS_INT_MASK | MIPS_SR_INT_IE); \
- DYNAMIC_STATUS_MASK(sr,scratch1)
- #else
- #define DYNAMIC_STATUS_MASK(sr,scratch)
- #define DYNAMIC_STATUS_MASK_TOUSER(sr,scratch1)
- #endif
- #define GET_CPU_PCPU(reg) \
- PTR_L reg, _C_LABEL(pcpup);
- /*
- * Description of the setjmp buffer
- *
- * word 0 magic number (dependant on creator)
- * 1 RA
- * 2 S0
- * 3 S1
- * 4 S2
- * 5 S3
- * 6 S4
- * 7 S5
- * 8 S6
- * 9 S7
- * 10 SP
- * 11 S8
- * 12 GP (dependent on ABI)
- * 13 signal mask (dependant on magic)
- * 14 (con't)
- * 15 (con't)
- * 16 (con't)
- *
- * The magic number number identifies the jmp_buf and
- * how the buffer was created as well as providing
- * a sanity check
- *
- */
- #define _JB_MAGIC__SETJMP 0xBADFACED
- #define _JB_MAGIC_SETJMP 0xFACEDBAD
- /* Valid for all jmp_buf's */
- #define _JB_MAGIC 0
- #define _JB_REG_RA 1
- #define _JB_REG_S0 2
- #define _JB_REG_S1 3
- #define _JB_REG_S2 4
- #define _JB_REG_S3 5
- #define _JB_REG_S4 6
- #define _JB_REG_S5 7
- #define _JB_REG_S6 8
- #define _JB_REG_S7 9
- #define _JB_REG_SP 10
- #define _JB_REG_S8 11
- #if defined(__mips_n32) || defined(__mips_n64)
- #define _JB_REG_GP 12
- #endif
- /* Only valid with the _JB_MAGIC_SETJMP magic */
- #define _JB_SIGMASK 13
- /*
- * Various macros for dealing with TLB hazards
- * (a) why so many?
- * (b) when to use?
- * (c) why not used everywhere?
- */
- /*
- * Assume that w alaways need nops to escape CP0 hazard
- * TODO: Make hazard delays configurable. Stuck with 5 cycles on the moment
- * For more info on CP0 hazards see Chapter 7 (p.99) of "MIPS32 Architecture
- * For Programmers Volume III: The MIPS32 Privileged Resource Architecture"
- */
- #if defined(CPU_NLM)
- #define HAZARD_DELAY sll $0,3
- #define ITLBNOPFIX sll $0,3
- #elif defined(CPU_RMI)
- #define HAZARD_DELAY
- #define ITLBNOPFIX
- #else
- #define ITLBNOPFIX nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;
- #define HAZARD_DELAY nop;nop;nop;nop;nop;
- #endif
- #endif /* !_MACHINE_ASM_H_ */