diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2005-12-09 12:29:38 +0000 |
|---|---|---|
| committer | <ralf@denk.linux-mips.net> | 2006-01-10 13:39:07 +0000 |
| commit | ba339c03e2e8ede8ccd37ed6c4e564e3b1545495 (patch) | |
| tree | 1a7bbfd15a9c46d5300d2d5a1890d748b81dbce2 /arch/mips/mips-boards/generic/time.c | |
| parent | 0401572a9b9b2f368176b6e53f53004fd048a566 (diff) | |
MIPS: Oprofile: Fixup the loose ends in the plumbing.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mips-boards/generic/time.c')
| -rw-r--r-- | arch/mips/mips-boards/generic/time.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/arch/mips/mips-boards/generic/time.c b/arch/mips/mips-boards/generic/time.c index 2830f656fe2f..93f3bf2c2b22 100644 --- a/arch/mips/mips-boards/generic/time.c +++ b/arch/mips/mips-boards/generic/time.c @@ -75,16 +75,29 @@ static void mips_timer_dispatch (struct pt_regs *regs) do_IRQ (mips_cpu_timer_irq, regs); } +extern int null_perf_irq(struct pt_regs *regs); + +extern int (*perf_irq)(struct pt_regs *regs); + irqreturn_t mips_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) { + int r2 = cpu_has_mips_r2; int cpu = smp_processor_id(); if (cpu == 0) { /* - * CPU 0 handles the global timer interrupt job and process accounting - * resets count/compare registers to trigger next timer int. + * CPU 0 handles the global timer interrupt job and process + * accounting resets count/compare registers to trigger next + * timer int. */ - timer_interrupt(irq, dev_id, regs); + if (!r2 || (read_c0_cause() & (1 << 26))) + if (perf_irq(regs)) + goto out; + + /* we keep interrupt disabled all the time */ + if (!r2 || (read_c0_cause() & (1 << 30))) + timer_interrupt(irq, NULL, regs); + scroll_display_message(); } else { /* Everyone else needs to reset the timer int here as @@ -101,6 +114,7 @@ irqreturn_t mips_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) local_timer_interrupt (irq, dev_id, regs); } +out: return IRQ_HANDLED; } |