diff options
Diffstat (limited to 'arch/mips/oprofile/op_model_mipsxx.c')
| -rw-r--r-- | arch/mips/oprofile/op_model_mipsxx.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c index c3e4c18ef8d4..0a05706da9fa 100644 --- a/arch/mips/oprofile/op_model_mipsxx.c +++ b/arch/mips/oprofile/op_model_mipsxx.c @@ -124,6 +124,17 @@ __define_perf_accessors(perfctrl, 1, 3) __define_perf_accessors(perfctrl, 2, 0) __define_perf_accessors(perfctrl, 3, 1) + +/* These two defines are only appropriate for qemu-system-mips. + They prevent illegal writes to performance registers and allow + oprofile timer mode to continue and be initialized fully. + + This should not merge to a common location, and only be applied + to emulated boards. +*/ +#define w_c0_perfctrl0(reg) {} +#define w_c0_perfcntr0(reg) {} + struct op_mips_model op_model_mipsxx_ops; static struct mipsxx_register_config { @@ -424,7 +435,9 @@ static int __init mipsxx_init(void) } save_perf_irq = perf_irq; +#if 0 perf_irq = mipsxx_perfcount_handler; +#endif if (get_c0_perfcount_int) perfcount_irq = get_c0_perfcount_int(); |