Commit d0c3be80 authored by Helge Deller's avatar Helge Deller

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: default avatarHelge Deller <deller@gmx.de>
parent fbb46caa
......@@ -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;
......
......@@ -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);
......
......@@ -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;
......
......@@ -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) {
......
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