From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 11 Oct 2007 09:13:34 +0000 (+0200)
Subject: i386: prepare shared lib/delay.c
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d779d8f9f8419e8492959adc267cdf5478bc4748;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git
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 c2de356c6935..98d1f1e2e2ef 100644
--- 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
index f6edb11364df..000000000000
--- 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
index 000000000000..f6edb11364df
--- /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);