[MIPS] Atlas, Malta, SEAD: Remove scroll from interrupt handler.

Aside of being handy for debugging this has never been a particularly
good idea but is now getting in the way of dyntick / tickless kernels
and general cleanups.

Signed-off-by: Ralf Baechle <[e-mail]>

arch/mips/mips-boards/atlas/atlas_setup.c

···
 	return "MIPS Atlas";
 }
 
+const char display_string[] = "        LINUX ON ATLAS       ";
+
 void __init plat_mem_setup(void)
 {
 	mips_pcibios_init();

arch/mips/mips-boards/generic/display.c

···
  */
 
 #include <linux/compiler.h>
+#include <linux/timer.h>
 #include <asm/io.h>
 #include <asm/mips-boards/generic.h>
+
+extern const char display_string[];
+static unsigned int display_count;
+static unsigned int max_display_count;
 
 void mips_display_message(const char *str)
 {
···
 		 else
 		         writel(' ', display + i);
 	}
+}
+
+static void scroll_display_message(unsigned long data);
+static DEFINE_TIMER(mips_scroll_timer, scroll_display_message, HZ, 0);
+
+static void scroll_display_message(unsigned long data)
+{
+	mips_display_message(&display_string[display_count++]);
+	if (display_count == max_display_count)
+		display_count = 0;
+
+	mod_timer(&mips_scroll_timer, jiffies + HZ);
+}
+
+void mips_scroll_message(void)
+{
+	del_timer_sync(&mips_scroll_timer);
+	max_display_count = strlen(display_string) + 1 - 8;
+	mod_timer(&mips_scroll_timer, jiffies + 1);
 }

arch/mips/mips-boards/generic/time.c

···
 
 unsigned long cpu_khz;
 
-#if defined(CONFIG_MIPS_ATLAS)
-static char display_string[] = "        LINUX ON ATLAS       ";
-#endif
-#if defined(CONFIG_MIPS_MALTA)
-#if defined(CONFIG_MIPS_MT_SMTC)
-static char display_string[] = "       SMTC LINUX ON MALTA       ";
-#else
-static char display_string[] = "        LINUX ON MALTA       ";
-#endif /* CONFIG_MIPS_MT_SMTC */
-#endif
-#if defined(CONFIG_MIPS_SEAD)
-static char display_string[] = "        LINUX ON SEAD       ";
-#endif
-static unsigned int display_count;
-#define MAX_DISPLAY_COUNT (sizeof(display_string) - 8)
-
 #define CPUCTR_IMASKBIT (0x100 << MIPSCPU_INT_CPUCTR)
 
-static unsigned int timer_tick_count;
 static int mips_cpu_timer_irq;
 extern void smtc_timer_broadcast(int);
-
-static inline void scroll_display_message(void)
-{
-	if ((timer_tick_count++ % HZ) == 0) {
-		mips_display_message(&display_string[display_count++]);
-		if (display_count == MAX_DISPLAY_COUNT)
-			display_count = 0;
-	}
-}
 
 static void mips_timer_dispatch(void)
 {
···
 		if (cpu_data[cpu].vpe_id == 0) {
 				timer_interrupt(irq, NULL);
 				smtc_timer_broadcast(cpu_data[cpu].vpe_id);
-				scroll_display_message();
 		} else {
 			write_c0_compare(read_c0_count() +
 			                 (mips_hpt_frequency/HZ));
···
 		/* we keep interrupt disabled all the time */
 		if (!r2 || (read_c0_cause() & (1 << 30)))
 			timer_interrupt(irq, NULL);
-
-		scroll_display_message();
 	} else {
 		/* Everyone else needs to reset the timer int here as
 		   ll_local_timer_interrupt doesn't */
···
 	       (est_freq%1000000)*100/1000000);
 
         cpu_khz = est_freq / 1000;
+
+	mips_scroll_message();
 }
 
 void __init plat_timer_setup(struct irqaction *irq)

arch/mips/mips-boards/malta/malta_setup.c

···
 	return "MIPS Malta";
 }
 
+#if defined(CONFIG_MIPS_MT_SMTC)
+const char display_string[] = "       SMTC LINUX ON MALTA       ";
+#else
+const char display_string[] = "        LINUX ON MALTA       ";
+#endif /* CONFIG_MIPS_MT_SMTC */
+
 #ifdef CONFIG_BLK_DEV_FD
 void __init fd_activate(void)
 {

arch/mips/mips-boards/sead/sead_setup.c

···
 	return "MIPS SEAD";
 }
 
+const char display_string[] = "        LINUX ON SEAD       ";
+
 void __init plat_mem_setup(void)
 {
 	ioport_resource.end = 0x7fffffff;

include/asm-mips/mips-boards/prom.h

···
 extern void prom_fixup_mem_map(unsigned long start_mem, unsigned long end_mem);
 extern void mips_display_message(const char *str);
 extern void mips_display_word(unsigned int num);
+extern void mips_scroll_message(void);
 extern int get_ethernet_addr(char *ethernet_addr);
 
 /* Memory descriptor management. */