Commit d0c3be80 authored by Helge Deller's avatar Helge Deller
Browse files

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

arch/parisc/include/asm/hardirq.h

+2 −0
Original line number Diff line number Diff line
@@ -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;

arch/parisc/kernel/irq.c

+8 −0
Original line number Diff line number Diff line
@@ -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);

arch/parisc/kernel/traps.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

arch/parisc/kernel/unaligned.c

+3 −0
Original line number Diff line number Diff line
@@ -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) {