acgcc.h
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上传日期:2013-02-24
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- /******************************************************************************
- *
- * Name: acgcc.h - GCC specific defines, etc.
- * $Revision: 14 $
- *
- *****************************************************************************/
- /*
- * Copyright (C) 2000, 2001 R. Byron Moore
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #ifndef __ACGCC_H__
- #define __ACGCC_H__
- #ifdef __ia64__
- #define _IA64
- #define COMPILER_DEPENDENT_UINT64 unsigned long
- /* Single threaded */
- #define ACPI_APPLICATION
- #define ACPI_ASM_MACROS
- #define causeinterrupt(level)
- #define BREAKPOINT3
- #define disable() __cli()
- #define enable() __sti()
- /*! [Begin] no source code translation */
- #include <asm/pal.h>
- #define halt() ia64_pal_halt_light() /* PAL_HALT[_LIGHT] */
- #define safe_halt() ia64_pal_halt(1) /* PAL_HALT */
- #define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq)
- do {
- __asm__ volatile ("1: ld4 r29=%1n"
- ";;n"
- "mov ar.ccv=r29n"
- "mov r2=r29n"
- "shr.u r30=r29,1n"
- "and r29=-4,r29n"
- ";;n"
- "add r29=2,r29n"
- "and r30=1,r30n"
- ";;n"
- "add r29=r29,r30n"
- ";;n"
- "cmpxchg4.acq r30=%1,r29,ar.ccvn"
- ";;n"
- "cmp.eq p6,p7=r2,r30n"
- "(p7) br.dpnt.few 1bn"
- "cmp.gt p8,p9=3,r29n"
- ";;n"
- "(p8) mov %0=-1n"
- "(p9) mov %0=r0n"
- :"=r"(Acq):"m"(GLptr):"r2","r29","r30","memory");
- } while (0)
- #define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq)
- do {
- __asm__ volatile ("1: ld4 r29=%1n"
- ";;n"
- "mov ar.ccv=r29n"
- "mov r2=r29n"
- "and r29=-4,r29n"
- ";;n"
- "cmpxchg4.acq r30=%1,r29,ar.ccvn"
- ";;n"
- "cmp.eq p6,p7=r2,r30n"
- "(p7) br.dpnt.few 1bn"
- "and %0=1,r2n"
- ";;n"
- :"=r"(Acq):"m"(GLptr):"r2","r29","r30","memory");
- } while (0)
- /*! [End] no source code translation !*/
- #else /* DO IA32 */
- #define COMPILER_DEPENDENT_UINT64 unsigned long long
- #define ACPI_ASM_MACROS
- #define causeinterrupt(level)
- #define BREAKPOINT3
- #define disable() __cli()
- #define enable() __sti()
- #define halt() __asm__ __volatile__ ("sti; hlt":::"memory")
- /*! [Begin] no source code translation
- *
- * A brief explanation as GNU inline assembly is a bit hairy
- * %0 is the output parameter in EAX ("=a")
- * %1 and %2 are the input parameters in ECX ("c")
- * and an immediate value ("i") respectively
- * All actual register references are preceded with "%%" as in "%%edx"
- * Immediate values in the assembly are preceded by "$" as in "$0x1"
- * The final asm parameter are the operation altered non-output registers.
- */
- #define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq)
- do {
- int dummy;
- asm("1: movl (%1),%%eax;"
- "movl %%eax,%%edx;"
- "andl %2,%%edx;"
- "btsl $0x1,%%edx;"
- "adcl $0x0,%%edx;"
- "lock; cmpxchgl %%edx,(%1);"
- "jnz 1b;"
- "cmpb $0x3,%%dl;"
- "sbbl %%eax,%%eax"
- :"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~1L):"dx");
- } while(0)
- #define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq)
- do {
- int dummy;
- asm("1: movl (%1),%%eax;"
- "movl %%eax,%%edx;"
- "andl %2,%%edx;"
- "lock; cmpxchgl %%edx,(%1);"
- "jnz 1b;"
- "andl $0x1,%%eax"
- :"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~3L):"dx");
- } while(0)
- /*
- * Math helper asm macros
- */
- #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32)
- asm("divl %2;"
- :"=a"(q32), "=d"(r32)
- :"r"(d32),
- "0"(n_lo), "1"(n_hi))
- #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo)
- asm("shrl $1,%2;"
- "rcrl $1,%3;"
- :"=r"(n_hi), "=r"(n_lo)
- :"0"(n_hi), "1"(n_lo))
- /*! [End] no source code translation !*/
- #endif /* IA 32 */
- /* This macro is used to tag functions as "printf-like" because
- * some compilers (like GCC) can catch printf format string problems.
- */
- #define ACPI_PRINTF_LIKE_FUNC __attribute__ ((__format__ (__printf__, 4, 5)))
- #endif /* __ACGCC_H__ */