[PATCH 2/9] put together equal pieces of system.h

Glauber de Oliveira Costa
2007-12-05T17:53:26Z

This patch puts together pieces of system_{32,64}.h that
looks like the same. It's the first step towards integration
of this file.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
---
arch/x86/kernel/process_64.c | 2 +-
include/asm-x86/system.h | 70 ++++++++++++++++++++++++++++++++++++++++++
include/asm-x86/system_32.h | 59 -----------------------------------
include/asm-x86/system_64.h | 12 -------
4 files changed, 71 insertions(+), 72 deletions(-)

Index: linux-2.6-x86/arch/x86/kernel/process_64.c
===================================================================
--- linux-2.6-x86.orig/arch/x86/kernel/process_64.c
+++ linux-2.6-x86/arch/x86/kernel/process_64.c
@@ -99,7 +99,7 @@ void exit_idle(void)
* We use this if we don't have any better
* idle routine..
*/
-static void default_idle(void)
+void default_idle(void)
{
current_thread_info()->status &= ~TS_POLLING;
/*
Index: linux-2.6-x86/include/asm-x86/system.h
===================================================================
--- linux-2.6-x86.orig/include/asm-x86/system.h
+++ linux-2.6-x86/include/asm-x86/system.h
@@ -1,5 +1,74 @@
+#ifndef _ASM_X86_SYSTEM_H_
+#define _ASM_X86_SYSTEM_H_
+
+#include <asm/asm.h>
+
#ifdef CONFIG_X86_32
# include "system_32.h"
#else
# include "system_64.h"
#endif
+
+#ifdef __KERNEL__
+#define _set_base(addr, base) do { unsigned long __pr; \
+__asm__ __volatile__ ("movw %%dx,%1\n\t" \
+ "rorl $16,%%edx\n\t" \
+ "movb %%dl,%2\n\t" \
+ "movb %%dh,%3" \
+ :"=&d" (__pr) \
+ :"m" (*((addr)+2)), \
+ "m" (*((addr)+4)), \
+ "m" (*((addr)+7)), \
+ "0" (base) \
+ ); } while (0)
+
+#define _set_limit(addr, limit) do { unsigned long __lr; \
+__asm__ __volatile__ ("movw %%dx,%1\n\t" \
+ "rorl $16,%%edx\n\t" \
+ "movb %2,%%dh\n\t" \
+ "andb $0xf0,%%dh\n\t" \
+ "orb %%dh,%%dl\n\t" \
+ "movb %%dl,%2" \
+ :"=&d" (__lr) \
+ :"m" (*(addr)), \
+ "m" (*((addr)+6)), \
+ "0" (limit) \
+ ); } while (0)
+
+#define set_base(ldt, base) _set_base(((char *)&(ldt)) , (base))
+#define set_limit(ldt, limit) _set_limit(((char *)&(ldt)) , ((limit)-1))
+
+/*
+ * Save a segment register away
+ */
+#define savesegment(seg, value) \
+ asm volatile("mov %%" #seg ",%0":"=rm" (value))
+
+static inline unsigned long get_limit(unsigned long segment)
+{
+ unsigned long __limit;
+ __asm__("lsll %1,%0"
+ :"=r" (__limit):"r" (segment));
+ return __limit+1;
+}
+#endif /* __KERNEL__ */
+
+static inline void clflush(void *__p)
+{
+ asm volatile("clflush %0" : "+m" (*(char __force *)__p));
+}
+
+#define nop() __asm__ __volatile__ ("nop")
+
+void disable_hlt(void);
+void enable_hlt(void);
+
+extern int es7000_plat;
+void cpu_idle_wait(void);
+
+extern unsigned long arch_align_stack(unsigned long sp);
+extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
+
+void default_idle(void);
+
+#endif
Index: linux-2.6-x86/include/asm-x86/system_32.h
===================================================================
--- linux-2.6-x86.orig/include/asm-x86/system_32.h
+++ linux-2.6-x86/include/asm-x86/system_32.h
@@ -34,34 +34,6 @@ extern struct task_struct * FASTCALL(__s
"2" (prev), "d" (next)); \
} while (0)

-#define _set_base(addr,base) do { unsigned long __pr; \
-__asm__ __volatile__ ("movw %%dx,%1\n\t" \
- "rorl $16,%%edx\n\t" \
- "movb %%dl,%2\n\t" \
- "movb %%dh,%3" \
- :"=&d" (__pr) \
- :"m" (*((addr)+2)), \
- "m" (*((addr)+4)), \
- "m" (*((addr)+7)), \
- "0" (base) \
- ); } while(0)
-
-#define _set_limit(addr,limit) do { unsigned long __lr; \
-__asm__ __volatile__ ("movw %%dx,%1\n\t" \
- "rorl $16,%%edx\n\t" \
- "movb %2,%%dh\n\t" \
- "andb $0xf0,%%dh\n\t" \
- "orb %%dh,%%dl\n\t" \
- "movb %%dl,%2" \
- :"=&d" (__lr) \
- :"m" (*(addr)), \
- "m" (*((addr)+6)), \
- "0" (limit) \
- ); } while(0)
-
-#define set_base(ldt,base) _set_base( ((char *)&(ldt)) , (base) )
-#define set_limit(ldt,limit) _set_limit( ((char *)&(ldt)) , ((limit)-1) )
-
/*
* Load a segment. Fall back on loading the zero
* segment if something goes wrong..
@@ -83,12 +55,6 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t"
".previous" \
: :"rm" (value))

-/*
- * Save a segment register away
- */
-#define savesegment(seg, value) \
- asm volatile("mov %%" #seg ",%0":"=rm" (value))
-

static inline void native_clts(void)
{
@@ -161,11 +127,6 @@ static inline void native_wbinvd(void)
asm volatile("wbinvd": : :"memory");
}

-static inline void clflush(void *__p)
-{
- asm volatile("clflush %0" : "+m" (*(char __force *)__p));
-}
-
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else
@@ -190,15 +151,6 @@ static inline void clflush(void *__p)

#endif /* __KERNEL__ */

-static inline unsigned long get_limit(unsigned long segment)
-{
- unsigned long __limit;
- __asm__("lsll %1,%0"
- :"=r" (__limit):"r" (segment));
- return __limit+1;
-}
-
-#define nop() __asm__ __volatile__ ("nop")

/*
* Force strict CPU ordering.
@@ -305,15 +257,5 @@ static inline unsigned long get_limit(un
* disable hlt during certain critical i/o operations
*/
#define HAVE_DISABLE_HLT
-void disable_hlt(void);
-void enable_hlt(void);
-
-extern int es7000_plat;
-void cpu_idle_wait(void);
-
-extern unsigned long arch_align_stack(unsigned long sp);
-extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
-
-void default_idle(void);

#endif
Index: linux-2.6-x86/include/asm-x86/system_64.h
===================================================================
--- linux-2.6-x86.orig/include/asm-x86/system_64.h
+++ linux-2.6-x86/include/asm-x86/system_64.h
@@ -134,13 +134,6 @@ static inline void write_cr8(unsigned lo

#endif /* __KERNEL__ */

-static inline void clflush(volatile void *__p)
-{
- asm volatile("clflush %0" : "+m" (*(char __force *)__p));
-}
-
-#define nop() __asm__ __volatile__ ("nop")
-
#ifdef CONFIG_SMP
#define smp_mb() mb()
#define smp_rmb() barrier()
@@ -170,9 +163,4 @@ static inline void clflush(volatile void

#include <linux/irqflags.h>

-void cpu_idle_wait(void);
-
-extern unsigned long arch_align_stack(unsigned long sp);
-extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
-
#endif