patch-2.4.6 linux/drivers/acpi/include/platform/acgcc.h
Next file: linux/drivers/acpi/include/platform/aclinux.h
Previous file: linux/drivers/acpi/include/platform/acenv.h
Back to the patch index
Back to the overall index
- 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__ */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)