Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (80 commits)
  [MIPS] tlbex.c: Cleanup __init usage.
  [MIPS] WRPPMC serial support move to platform device
  [MIPS] R1: Fix hazard barriers to make kernels work on R2 also.
  [MIPS] VPE: reimplement ELF loader.
  [MIPS] cleanup WRPPMC include files
  [MIPS] Add BUG_ON assertion for attempt to run kernel on the wrong CPU type.
  [MIPS] SMP: Use ISO C struct initializer for local structs.
  [MIPS] SMP: Kill useless casts.
  [MIPS] Kill num_online_cpus() loops.
  [MIPS] SMP: Implement smp_call_function_mask().
  [MIPS] Make facility to convert CPU types to strings generally available.
  [MIPS] Convert list of CPU types from #define to enum.
  [MIPS] Optimize get_unaligned / put_unaligned implementations.
  [MIPS] checkfiles: Fix "need space after that ','" errors.
  [MIPS] Fix "no space between function name and open parenthesis" warnings.
  [MIPS] Allow hardwiring of the CPU type to a single type for optimization.
  [MIPS] tlbex: Size optimize code by declaring a few functions inline.
  [MIPS] pg-r4k.c: Dump the generated code
  [MIPS] Cobalt: Remove cobalt_machine_power_off()
  [MIPS] Cobalt: Move reset port definition to arch/mips/cobalt/reset.c
  ...

1 files changed, 41 insertions, 17 deletions

diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c
index ad593a6c20be..7659174819c6 100644
--- a/arch/mips/sibyte/sb1250/irq.c
+++ b/arch/mips/sibyte/sb1250/irq.c
@@ -28,6 +28,7 @@
 #include <asm/errno.h>
 #include <asm/signal.h>
 #include <asm/system.h>
+#include <asm/time.h>
 #include <asm/io.h>
 
 #include <asm/sibyte/sb1250_regs.h>
@@ -258,7 +259,7 @@ int sb1250_steal_irq(int irq)
 	if (irq >= SB1250_NR_IRQS)
 		return -EINVAL;
 
-	spin_lock_irqsave(&desc->lock,flags);
+	spin_lock_irqsave(&desc->lock, flags);
 	/* Don't allow sharing at all for these */
 	if (desc->action != NULL)
 		retval = -EBUSY;
@@ -266,7 +267,7 @@ int sb1250_steal_irq(int irq)
 		desc->action = &sb1250_dummy_action;
 		desc->depth = 0;
 	}
-	spin_unlock_irqrestore(&desc->lock,flags);
+	spin_unlock_irqrestore(&desc->lock, flags);
 	return 0;
 }
 
@@ -380,8 +381,8 @@ void __init arch_init_irq(void)
 
 #include <linux/delay.h>
 
-#define duart_out(reg, val)     csr_out32(val, IOADDR(A_DUART_CHANREG(kgdb_port,reg)))
-#define duart_in(reg)           csr_in32(IOADDR(A_DUART_CHANREG(kgdb_port,reg)))
+#define duart_out(reg, val)     csr_out32(val, IOADDR(A_DUART_CHANREG(kgdb_port, reg)))
+#define duart_in(reg)           csr_in32(IOADDR(A_DUART_CHANREG(kgdb_port, reg)))
 
 static void sb1250_kgdb_interrupt(void)
 {
@@ -399,18 +400,45 @@ static void sb1250_kgdb_interrupt(void)
 
 #endif 	/* CONFIG_KGDB */
 
-extern void sb1250_timer_interrupt(void);
+static inline void sb1250_timer_interrupt(void)
+{
+	int cpu = smp_processor_id();
+	int irq = K_INT_TIMER_0 + cpu;
+
+	irq_enter();
+	kstat_this_cpu.irqs[irq]++;
+
+	write_seqlock(&xtime_lock);
+
+	/* ACK interrupt */
+	____raw_writeq(M_SCD_TIMER_ENABLE | M_SCD_TIMER_MODE_CONTINUOUS,
+		       IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_CFG)));
+
+	/*
+	 * call the generic timer interrupt handling
+	 */
+	do_timer(1);
+
+	write_sequnlock(&xtime_lock);
+
+	/*
+	 * In UP mode, we call local_timer_interrupt() to do profiling
+	 * and process accouting.
+	 *
+	 * In SMP mode, local_timer_interrupt() is invoked by appropriate
+	 * low-level local timer interrupt handler.
+	 */
+	local_timer_interrupt(irq);
+
+	irq_exit();
+}
+
 extern void sb1250_mailbox_interrupt(void);
 
 asmlinkage void plat_irq_dispatch(void)
 {
 	unsigned int pending;
 
-#ifdef CONFIG_SIBYTE_SB1250_PROF
-	/* Set compare to count to silence count/compare timer interrupts */
-	write_c0_compare(read_c0_count());
-#endif
-
 	/*
 	 * What a pain. We have to be really careful saving the upper 32 bits
 	 * of any * register across function calls if we don't want them
@@ -423,13 +451,9 @@ asmlinkage void plat_irq_dispatch(void)
 
 	pending = read_c0_cause() & read_c0_status() & ST0_IM;
 
-#ifdef CONFIG_SIBYTE_SB1250_PROF
-	if (pending & CAUSEF_IP7) /* Cpu performance counter interrupt */
-		sbprof_cpu_intr();
-	else
-#endif
-
-	if (pending & CAUSEF_IP4)
+	if (pending & CAUSEF_IP7) /* CPU performance counter interrupt */
+		do_IRQ(MIPS_CPU_IRQ_BASE + 7);
+	else if (pending & CAUSEF_IP4)
 		sb1250_timer_interrupt();
 
 #ifdef CONFIG_SMP