i386: prepare shared lib/delay.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/i386/lib/Makefile b/arch/i386/lib/Makefile
index c2de356c6935a102f84f587499e67ad7797d6629..98d1f1e2e2ef5d197d743b891efd4f50b7417f75 100644 (file)
--- a/arch/i386/lib/Makefile
+++ b/arch/i386/lib/Makefile
@@ -3,7 +3,7 @@
 #
 
 
-lib-y = checksum_32.o delay.o usercopy_32.o getuser_32.o putuser_32.o memcpy_32.o strstr_32.o \
+lib-y = checksum_32.o delay_32.o usercopy_32.o getuser_32.o putuser_32.o memcpy_32.o strstr_32.o \
        bitops_32.o semaphore_32.o string_32.o
 
 lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o

diff --git a/arch/i386/lib/delay.c b/arch/i386/lib/delay.c
deleted file mode 100644 (file)
index f6edb11..0000000
--- a/arch/i386/lib/delay.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- *     Precise Delay Loops for i386
- *
- *     Copyright (C) 1993 Linus Torvalds
- *     Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
- *
- *     The __delay function must _NOT_ be inlined as its execution time
- *     depends wildly on alignment on many x86 processors. The additional
- *     jump magic is needed to get the timing stable on all the CPU's
- *     we have to worry about.
- */
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-
-#include <asm/processor.h>
-#include <asm/delay.h>
-#include <asm/timer.h>
-
-#ifdef CONFIG_SMP
-# include <asm/smp.h>
-#endif
-
-/* simple loop based delay: */
-static void delay_loop(unsigned long loops)
-{
-       int d0;
-
-       __asm__ __volatile__(
-               "\tjmp 1f\n"
-               ".align 16\n"
-               "1:\tjmp 2f\n"
-               ".align 16\n"
-               "2:\tdecl %0\n\tjns 2b"
-               :"=&a" (d0)
-               :"0" (loops));
-}
-
-/* TSC based delay: */
-static void delay_tsc(unsigned long loops)
-{
-       unsigned long bclock, now;
-
-       rdtscl(bclock);
-       do {
-               rep_nop();
-               rdtscl(now);
-       } while ((now-bclock) < loops);
-}
-
-/*
- * Since we calibrate only once at boot, this
- * function should be set once at boot and not changed
- */
-static void (*delay_fn)(unsigned long) = delay_loop;
-
-void use_tsc_delay(void)
-{
-       delay_fn = delay_tsc;
-}
-
-int read_current_timer(unsigned long *timer_val)
-{
-       if (delay_fn == delay_tsc) {
-               rdtscl(*timer_val);
-               return 0;
-       }
-       return -1;
-}
-
-void __delay(unsigned long loops)
-{
-       delay_fn(loops);
-}
-
-inline void __const_udelay(unsigned long xloops)
-{
-       int d0;
-
-       xloops *= 4;
-       __asm__("mull %0"
-               :"=d" (xloops), "=&a" (d0)
-               :"1" (xloops), "0"
-               (cpu_data[raw_smp_processor_id()].loops_per_jiffy * (HZ/4)));
-
-       __delay(++xloops);
-}
-
-void __udelay(unsigned long usecs)
-{
-       __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */
-}
-
-void __ndelay(unsigned long nsecs)
-{
-       __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */
-}
-
-EXPORT_SYMBOL(__delay);
-EXPORT_SYMBOL(__const_udelay);
-EXPORT_SYMBOL(__udelay);
-EXPORT_SYMBOL(__ndelay);

diff --git a/arch/i386/lib/delay_32.c b/arch/i386/lib/delay_32.c
new file mode 100644 (file)
index 0000000..f6edb11
--- /dev/null
+++ b/arch/i386/lib/delay_32.c
@@ -0,0 +1,103 @@
+/*
+ *     Precise Delay Loops for i386
+ *
+ *     Copyright (C) 1993 Linus Torvalds
+ *     Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ *
+ *     The __delay function must _NOT_ be inlined as its execution time
+ *     depends wildly on alignment on many x86 processors. The additional
+ *     jump magic is needed to get the timing stable on all the CPU's
+ *     we have to worry about.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+
+#include <asm/processor.h>
+#include <asm/delay.h>
+#include <asm/timer.h>
+
+#ifdef CONFIG_SMP
+# include <asm/smp.h>
+#endif
+
+/* simple loop based delay: */
+static void delay_loop(unsigned long loops)
+{
+       int d0;
+
+       __asm__ __volatile__(
+               "\tjmp 1f\n"
+               ".align 16\n"
+               "1:\tjmp 2f\n"
+               ".align 16\n"
+               "2:\tdecl %0\n\tjns 2b"
+               :"=&a" (d0)
+               :"0" (loops));
+}
+
+/* TSC based delay: */
+static void delay_tsc(unsigned long loops)
+{
+       unsigned long bclock, now;
+
+       rdtscl(bclock);
+       do {
+               rep_nop();
+               rdtscl(now);
+       } while ((now-bclock) < loops);
+}
+
+/*
+ * Since we calibrate only once at boot, this
+ * function should be set once at boot and not changed
+ */
+static void (*delay_fn)(unsigned long) = delay_loop;
+
+void use_tsc_delay(void)
+{
+       delay_fn = delay_tsc;
+}
+
+int read_current_timer(unsigned long *timer_val)
+{
+       if (delay_fn == delay_tsc) {
+               rdtscl(*timer_val);
+               return 0;
+       }
+       return -1;
+}
+
+void __delay(unsigned long loops)
+{
+       delay_fn(loops);
+}
+
+inline void __const_udelay(unsigned long xloops)
+{
+       int d0;
+
+       xloops *= 4;
+       __asm__("mull %0"
+               :"=d" (xloops), "=&a" (d0)
+               :"1" (xloops), "0"
+               (cpu_data[raw_smp_processor_id()].loops_per_jiffy * (HZ/4)));
+
+       __delay(++xloops);
+}
+
+void __udelay(unsigned long usecs)
+{
+       __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */
+}
+
+void __ndelay(unsigned long nsecs)
+{
+       __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */
+}
+
+EXPORT_SYMBOL(__delay);
+EXPORT_SYMBOL(__const_udelay);
+EXPORT_SYMBOL(__udelay);
+EXPORT_SYMBOL(__ndelay);