parisc: more irq statistics in /proc/interrupts

Add framework and initial values for more fine grained statistics in
/proc/interrupts.

Signed-off-by: Helge Deller <deller@gmx.de>

2 files changed, 35 insertions, 2 deletions

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 0d68184a76cb..a9c0fb195253 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -1,11 +1,45 @@
 /* hardirq.h: PA-RISC hard IRQ support.
  *
  * Copyright (C) 2001 Matthew Wilcox <matthew@wil.cx>
+ * Copyright (C) 2013 Helge Deller <deller@gmx.de>
  */
 
 #ifndef _PARISC_HARDIRQ_H
 #define _PARISC_HARDIRQ_H
 
-#include <asm-generic/hardirq.h>
+#include <linux/cache.h>
+#include <linux/threads.h>
+#include <linux/irq.h>
+
+typedef struct {
+        unsigned int __softirq_pending;
+#ifdef CONFIG_DEBUG_STACKOVERFLOW
+        unsigned int kernel_stack_usage;
+#endif
+#ifdef CONFIG_SMP
+        unsigned int irq_resched_count;
+        unsigned int irq_call_count;
+        /*
+         * irq_tlb_count is double-counted in irq_call_count, so it must be
+         * subtracted from irq_call_count when displaying irq_call_count
+         */
+        unsigned int irq_tlb_count;
+#endif
+} ____cacheline_aligned irq_cpustat_t;
+
+DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
+
+#define __ARCH_IRQ_STAT
+#define __IRQ_STAT(cpu, member) (irq_stat[cpu].member)
+#define inc_irq_stat(member)    this_cpu_inc(irq_stat.member)
+#define local_softirq_pending() this_cpu_read(irq_stat.__softirq_pending)
+
+#define __ARCH_SET_SOFTIRQ_PENDING
+
+#define set_softirq_pending(x)  \
+                this_cpu_write(irq_stat.__softirq_pending, (x))
+#define or_softirq_pending(x)   this_cpu_or(irq_stat.__softirq_pending, (x))
+
+#define ack_bad_irq(irq) WARN(1, "unexpected IRQ trap at vector %02x\n", irq)
 
 #endif /* _PARISC_HARDIRQ_H */
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 242f06a5fbd8..064015547d1e 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -112,7 +112,6 @@ struct cpuinfo_parisc {
         unsigned long txn_addr;     /* MMIO addr of EIR or id_eid */
 #ifdef CONFIG_SMP
         unsigned long pending_ipi;  /* bitmap of type ipi_message_type */
-        unsigned long ipi_count;    /* number ipi Interrupts */
 #endif
         unsigned long bh_count;     /* number of times bh was invoked */
         unsigned long prof_counter; /* per CPU profiling support */