parisc: show number of FPE and unaligned access handler calls in /proc/interrupts

Show number of floating point assistant and unaligned access fixup
handler in /proc/interrupts file.

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

4 files changed, 14 insertions, 0 deletions

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index c19f7138ba48..4c6dd8da1e5d 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -28,6 +28,8 @@ typedef struct {
         unsigned int irq_resched_count;
         unsigned int irq_call_count;
 #endif
+        unsigned int irq_unaligned_count;
+        unsigned int irq_fpassist_count;
         unsigned int irq_tlb_count;
 } ____cacheline_aligned irq_cpustat_t;
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 55237a70e197..9c2d953f3de5 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -188,6 +188,14 @@ int arch_show_interrupts(struct seq_file *p, int prec)
                 seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
         seq_puts(p, "  Function call interrupts\n");
 #endif
+        seq_printf(p, "%*s: ", prec, "UAH");
+        for_each_online_cpu(j)
+                seq_printf(p, "%10u ", irq_stats(j)->irq_unaligned_count);
+        seq_puts(p, "  Unaligned access handler traps\n");
+        seq_printf(p, "%*s: ", prec, "FPA");
+        for_each_online_cpu(j)
+                seq_printf(p, "%10u ", irq_stats(j)->irq_fpassist_count);
+        seq_puts(p, "  Floating point assist traps\n");
         seq_printf(p, "%*s: ", prec, "TLB");
         for_each_online_cpu(j)
                 seq_printf(p, "%10u ", irq_stats(j)->irq_tlb_count);
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index fe41a98043bb..04e47c6a4562 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -646,6 +646,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
         case 14:
                 /* Assist Exception Trap, i.e. floating point exception. */
                 die_if_kernel("Floating point exception", regs, 0); /* quiet */
+                __inc_irq_stat(irq_fpassist_count);
                 handle_fpe(regs);
                 return;
 
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 234e3682cf09..d7c0acb35ec2 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -27,6 +27,7 @@
 #include <linux/signal.h>
 #include <linux/ratelimit.h>
 #include <asm/uaccess.h>
+#include <asm/hardirq.h>
 
 /* #define DEBUG_UNALIGNED 1 */
 
@@ -454,6 +455,8 @@ void handle_unaligned(struct pt_regs *regs)
         struct siginfo si;
         register int flop=0;    /* true if this is a flop */
 
+        __inc_irq_stat(irq_unaligned_count);
+
         /* log a message with pacing */
         if (user_mode(regs)) {
                 if (current->thread.flags & PARISC_UAC_SIGBUS) {