patch-2.4.6 linux/drivers/acpi/include/platform/acgcc.h

• Lines: 148
• Date: Wed Jun 20 17:47:40 2001
• Orig file: v2.4.5/linux/drivers/acpi/include/platform/acgcc.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/include/platform/acgcc.h linux/drivers/acpi/include/platform/acgcc.h
@@ -0,0 +1,147 @@
+/******************************************************************************
+ *
+ * Name: acgcc.h - GCC specific defines, etc.
+ *       $Revision: 6 $
+ *
+ *****************************************************************************/
+
+/*
+ *  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()
+#define wbinvd()
+
+/*! [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")
+#define wbinvd()
+
+/*! [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)
+
+/*! [End] no source code translation !*/
+
+#endif /* IA 32 */
+
+#endif /* __ACGCC_H__ */