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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=%1\n" \
";;\n" \
"mov ar.ccv=r29\n" \
"mov r2=r29\n" \
"shr.u r30=r29,1\n" \
"and r29=-4,r29\n" \
";;\n" \
"add r29=2,r29\n" \
"and r30=1,r30\n" \
";;\n" \
"add r29=r29,r30\n" \
";;\n" \
"cmpxchg4.acq r30=%1,r29,ar.ccv\n" \
";;\n" \
"cmp.eq p6,p7=r2,r30\n" \
"(p7) br.dpnt.few 1b\n" \
"cmp.gt p8,p9=3,r29\n" \
";;\n" \
"(p8) mov %0=-1\n" \
"(p9) mov %0=r0\n" \
:"=r"(Acq):"m"(GLptr):"r2","r29","r30","memory"); \
} while (0)
#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
do { \
__asm__ volatile ("1: ld4 r29=%1\n" \
";;\n" \
"mov ar.ccv=r29\n" \
"mov r2=r29\n" \
"and r29=-4,r29\n" \
";;\n" \
"cmpxchg4.acq r30=%1,r29,ar.ccv\n" \
";;\n" \
"cmp.eq p6,p7=r2,r30\n" \
"(p7) br.dpnt.few 1b\n" \
"and %0=1,r2\n" \
";;\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__ */
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