diff options
Diffstat (limited to 'arch/mips/oprofile/op_model_mipsxx.c')
| -rw-r--r-- | arch/mips/oprofile/op_model_mipsxx.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c index 42821ae2d77e..01f721a85c5b 100644 --- a/arch/mips/oprofile/op_model_mipsxx.c +++ b/arch/mips/oprofile/op_model_mipsxx.c @@ -11,6 +11,7 @@ #include <linux/interrupt.h> #include <linux/smp.h> #include <asm/irq_regs.h> +#include <asm/time.h> #include "op_impl.h" @@ -35,6 +36,7 @@ #define M_PERFCTL_COUNT_ALL_THREADS (1UL << 13) static int (*save_perf_irq)(void); +static int perfcount_irq; /* * XLR has only one set of counters per core. Designate the @@ -431,8 +433,16 @@ static int __init mipsxx_init(void) save_perf_irq = perf_irq; perf_irq = mipsxx_perfcount_handler; - if ((cp0_perfcount_irq >= 0) && (cp0_compare_irq != cp0_perfcount_irq)) - return request_irq(cp0_perfcount_irq, mipsxx_perfcount_int, + if (get_c0_perfcount_int) + perfcount_irq = get_c0_perfcount_int(); + else if ((cp0_perfcount_irq >= 0) && + (cp0_compare_irq != cp0_perfcount_irq)) + perfcount_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq; + else + perfcount_irq = -1; + + if (perfcount_irq >= 0) + return request_irq(perfcount_irq, mipsxx_perfcount_int, 0, "Perfcounter", save_perf_irq); return 0; @@ -442,8 +452,8 @@ static void mipsxx_exit(void) { int counters = op_model_mipsxx_ops.num_counters; - if ((cp0_perfcount_irq >= 0) && (cp0_compare_irq != cp0_perfcount_irq)) - free_irq(cp0_perfcount_irq, save_perf_irq); + if (perfcount_irq >= 0) + free_irq(perfcount_irq, save_perf_irq); counters = counters_per_cpu_to_total(counters); on_each_cpu(reset_counters, (void *)(long)counters, 1); |