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-rw-r--r--arch/ppc64/kernel/iSeries_setup.c5
-rw-r--r--arch/ppc64/kernel/maple_setup.c2
-rw-r--r--arch/ppc64/kernel/maple_time.c51
-rw-r--r--arch/ppc64/kernel/pSeries_setup.c69
-rw-r--r--arch/ppc64/kernel/pmac_time.c8
-rw-r--r--arch/ppc64/kernel/setup.c5
-rw-r--r--arch/ppc64/kernel/time.c63
7 files changed, 67 insertions, 136 deletions
diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c
index b31962436fe3..86966ce76b58 100644
--- a/arch/ppc64/kernel/iSeries_setup.c
+++ b/arch/ppc64/kernel/iSeries_setup.c
@@ -671,9 +671,6 @@ static void __init iSeries_bolt_kernel(unsigned long saddr, unsigned long eaddr)
}
}
-extern unsigned long ppc_proc_freq;
-extern unsigned long ppc_tb_freq;
-
/*
* Document me.
*/
@@ -772,8 +769,6 @@ static void iSeries_halt(void)
mf_power_off();
}
-extern void setup_default_decr(void);
-
/*
* void __init iSeries_calibrate_decr()
*
diff --git a/arch/ppc64/kernel/maple_setup.c b/arch/ppc64/kernel/maple_setup.c
index 8cf95a27178e..3dabedb8553b 100644
--- a/arch/ppc64/kernel/maple_setup.c
+++ b/arch/ppc64/kernel/maple_setup.c
@@ -235,6 +235,6 @@ struct machdep_calls __initdata maple_md = {
.get_boot_time = maple_get_boot_time,
.set_rtc_time = maple_set_rtc_time,
.get_rtc_time = maple_get_rtc_time,
- .calibrate_decr = maple_calibrate_decr,
+ .calibrate_decr = generic_calibrate_decr,
.progress = maple_progress,
};
diff --git a/arch/ppc64/kernel/maple_time.c b/arch/ppc64/kernel/maple_time.c
index 07ce7895b43d..d65210abcd03 100644
--- a/arch/ppc64/kernel/maple_time.c
+++ b/arch/ppc64/kernel/maple_time.c
@@ -42,11 +42,8 @@
#define DBG(x...)
#endif
-extern void setup_default_decr(void);
extern void GregorianDay(struct rtc_time * tm);
-extern unsigned long ppc_tb_freq;
-extern unsigned long ppc_proc_freq;
static int maple_rtc_addr;
static int maple_clock_read(int addr)
@@ -176,51 +173,3 @@ void __init maple_get_boot_time(struct rtc_time *tm)
maple_get_rtc_time(tm);
}
-/* XXX FIXME: Some sane defaults: 125 MHz timebase, 1GHz processor */
-#define DEFAULT_TB_FREQ 125000000UL
-#define DEFAULT_PROC_FREQ (DEFAULT_TB_FREQ * 8)
-
-void __init maple_calibrate_decr(void)
-{
- struct device_node *cpu;
- struct div_result divres;
- unsigned int *fp = NULL;
-
- /*
- * The cpu node should have a timebase-frequency property
- * to tell us the rate at which the decrementer counts.
- */
- cpu = of_find_node_by_type(NULL, "cpu");
-
- ppc_tb_freq = DEFAULT_TB_FREQ;
- if (cpu != 0)
- fp = (unsigned int *)get_property(cpu, "timebase-frequency", NULL);
- if (fp != NULL)
- ppc_tb_freq = *fp;
- else
- printk(KERN_ERR "WARNING: Estimating decrementer frequency (not found)\n");
- fp = NULL;
- ppc_proc_freq = DEFAULT_PROC_FREQ;
- if (cpu != 0)
- fp = (unsigned int *)get_property(cpu, "clock-frequency", NULL);
- if (fp != NULL)
- ppc_proc_freq = *fp;
- else
- printk(KERN_ERR "WARNING: Estimating processor frequency (not found)\n");
-
- of_node_put(cpu);
-
- printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
- ppc_tb_freq/1000000, ppc_tb_freq%1000000);
- printk(KERN_INFO "time_init: processor frequency = %lu.%.6lu MHz\n",
- ppc_proc_freq/1000000, ppc_proc_freq%1000000);
-
- tb_ticks_per_jiffy = ppc_tb_freq / HZ;
- tb_ticks_per_sec = tb_ticks_per_jiffy * HZ;
- tb_ticks_per_usec = ppc_tb_freq / 1000000;
- tb_to_us = mulhwu_scale_factor(ppc_tb_freq, 1000000);
- div128_by_32(1024*1024, 0, tb_ticks_per_sec, &divres);
- tb_to_xs = divres.result_low;
-
- setup_default_decr();
-}
diff --git a/arch/ppc64/kernel/pSeries_setup.c b/arch/ppc64/kernel/pSeries_setup.c
index 6c0d1d58a552..f9a310c0c8d7 100644
--- a/arch/ppc64/kernel/pSeries_setup.c
+++ b/arch/ppc64/kernel/pSeries_setup.c
@@ -84,9 +84,6 @@ extern void generic_find_legacy_serial_ports(u64 *physport,
int fwnmi_active; /* TRUE if an FWNMI handler is present */
-extern unsigned long ppc_proc_freq;
-extern unsigned long ppc_tb_freq;
-
extern void pSeries_system_reset_exception(struct pt_regs *regs);
extern int pSeries_machine_check_exception(struct pt_regs *regs);
@@ -482,70 +479,6 @@ static void pSeries_progress(char *s, unsigned short hex)
spin_unlock(&progress_lock);
}
-extern void setup_default_decr(void);
-
-/* Some sane defaults: 125 MHz timebase, 1GHz processor */
-#define DEFAULT_TB_FREQ 125000000UL
-#define DEFAULT_PROC_FREQ (DEFAULT_TB_FREQ * 8)
-
-static void __init pSeries_calibrate_decr(void)
-{
- struct device_node *cpu;
- struct div_result divres;
- unsigned int *fp;
- int node_found;
-
- /*
- * The cpu node should have a timebase-frequency property
- * to tell us the rate at which the decrementer counts.
- */
- cpu = of_find_node_by_type(NULL, "cpu");
-
- ppc_tb_freq = DEFAULT_TB_FREQ; /* hardcoded default */
- node_found = 0;
- if (cpu != 0) {
- fp = (unsigned int *)get_property(cpu, "timebase-frequency",
- NULL);
- if (fp != 0) {
- node_found = 1;
- ppc_tb_freq = *fp;
- }
- }
- if (!node_found)
- printk(KERN_ERR "WARNING: Estimating decrementer frequency "
- "(not found)\n");
-
- ppc_proc_freq = DEFAULT_PROC_FREQ;
- node_found = 0;
- if (cpu != 0) {
- fp = (unsigned int *)get_property(cpu, "clock-frequency",
- NULL);
- if (fp != 0) {
- node_found = 1;
- ppc_proc_freq = *fp;
- }
- }
- if (!node_found)
- printk(KERN_ERR "WARNING: Estimating processor frequency "
- "(not found)\n");
-
- of_node_put(cpu);
-
- printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
- ppc_tb_freq/1000000, ppc_tb_freq%1000000);
- printk(KERN_INFO "time_init: processor frequency = %lu.%.6lu MHz\n",
- ppc_proc_freq/1000000, ppc_proc_freq%1000000);
-
- tb_ticks_per_jiffy = ppc_tb_freq / HZ;
- tb_ticks_per_sec = tb_ticks_per_jiffy * HZ;
- tb_ticks_per_usec = ppc_tb_freq / 1000000;
- tb_to_us = mulhwu_scale_factor(ppc_tb_freq, 1000000);
- div128_by_32(1024*1024, 0, tb_ticks_per_sec, &divres);
- tb_to_xs = divres.result_low;
-
- setup_default_decr();
-}
-
static int pSeries_check_legacy_ioport(unsigned int baseport)
{
struct device_node *np;
@@ -604,7 +537,7 @@ struct machdep_calls __initdata pSeries_md = {
.get_boot_time = pSeries_get_boot_time,
.get_rtc_time = pSeries_get_rtc_time,
.set_rtc_time = pSeries_set_rtc_time,
- .calibrate_decr = pSeries_calibrate_decr,
+ .calibrate_decr = generic_calibrate_decr,
.progress = pSeries_progress,
.check_legacy_ioport = pSeries_check_legacy_ioport,
.system_reset_exception = pSeries_system_reset_exception,
diff --git a/arch/ppc64/kernel/pmac_time.c b/arch/ppc64/kernel/pmac_time.c
index f24827581dd7..3059edb09cc8 100644
--- a/arch/ppc64/kernel/pmac_time.c
+++ b/arch/ppc64/kernel/pmac_time.c
@@ -40,11 +40,6 @@
#define DBG(x...)
#endif
-extern void setup_default_decr(void);
-
-extern unsigned long ppc_tb_freq;
-extern unsigned long ppc_proc_freq;
-
/* Apparently the RTC stores seconds since 1 Jan 1904 */
#define RTC_OFFSET 2082844800
@@ -161,8 +156,7 @@ void __init pmac_get_boot_time(struct rtc_time *tm)
/*
* Query the OF and get the decr frequency.
- * This was taken from the pmac time_init() when merging the prep/pmac
- * time functions.
+ * FIXME: merge this with generic_calibrate_decr
*/
void __init pmac_calibrate_decr(void)
{
diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c
index 8e439a817642..93b0ee88cda1 100644
--- a/arch/ppc64/kernel/setup.c
+++ b/arch/ppc64/kernel/setup.c
@@ -701,9 +701,6 @@ void machine_halt(void)
EXPORT_SYMBOL(machine_halt);
-unsigned long ppc_proc_freq;
-unsigned long ppc_tb_freq;
-
static int ppc64_panic_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
@@ -1117,7 +1114,7 @@ void ppc64_dump_msg(unsigned int src, const char *msg)
}
/* This should only be called on processor 0 during calibrate decr */
-void setup_default_decr(void)
+void __init setup_default_decr(void)
{
struct paca_struct *lpaca = get_paca();
diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c
index 33364a7d2cd2..2348a75e050d 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/ppc64/kernel/time.c
@@ -107,6 +107,9 @@ void ppc_adjtimex(void);
static unsigned adjusting_time = 0;
+unsigned long ppc_proc_freq;
+unsigned long ppc_tb_freq;
+
static __inline__ void timer_check_rtc(void)
{
/*
@@ -472,6 +475,66 @@ int do_settimeofday(struct timespec *tv)
EXPORT_SYMBOL(do_settimeofday);
+#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_MAPLE) || defined(CONFIG_PPC_BPA)
+void __init generic_calibrate_decr(void)
+{
+ struct device_node *cpu;
+ struct div_result divres;
+ unsigned int *fp;
+ int node_found;
+
+ /*
+ * The cpu node should have a timebase-frequency property
+ * to tell us the rate at which the decrementer counts.
+ */
+ cpu = of_find_node_by_type(NULL, "cpu");
+
+ ppc_tb_freq = DEFAULT_TB_FREQ; /* hardcoded default */
+ node_found = 0;
+ if (cpu != 0) {
+ fp = (unsigned int *)get_property(cpu, "timebase-frequency",
+ NULL);
+ if (fp != 0) {
+ node_found = 1;
+ ppc_tb_freq = *fp;
+ }
+ }
+ if (!node_found)
+ printk(KERN_ERR "WARNING: Estimating decrementer frequency "
+ "(not found)\n");
+
+ ppc_proc_freq = DEFAULT_PROC_FREQ;
+ node_found = 0;
+ if (cpu != 0) {
+ fp = (unsigned int *)get_property(cpu, "clock-frequency",
+ NULL);
+ if (fp != 0) {
+ node_found = 1;
+ ppc_proc_freq = *fp;
+ }
+ }
+ if (!node_found)
+ printk(KERN_ERR "WARNING: Estimating processor frequency "
+ "(not found)\n");
+
+ of_node_put(cpu);
+
+ printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
+ ppc_tb_freq/1000000, ppc_tb_freq%1000000);
+ printk(KERN_INFO "time_init: processor frequency = %lu.%.6lu MHz\n",
+ ppc_proc_freq/1000000, ppc_proc_freq%1000000);
+
+ tb_ticks_per_jiffy = ppc_tb_freq / HZ;
+ tb_ticks_per_sec = tb_ticks_per_jiffy * HZ;
+ tb_ticks_per_usec = ppc_tb_freq / 1000000;
+ tb_to_us = mulhwu_scale_factor(ppc_tb_freq, 1000000);
+ div128_by_32(1024*1024, 0, tb_ticks_per_sec, &divres);
+ tb_to_xs = divres.result_low;
+
+ setup_default_decr();
+}
+#endif
+
void __init time_init(void)
{
/* This function is only called on the boot processor */
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-05 22:38:43 +0200