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[MIPS] Add support for MIPS CMP platform.

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Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2008-04-28 17:14:26 +01:00
parent 308402445e
commit 39b8d52542
34 changed files with 2191 additions and 123 deletions
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34
arch/mips/oprofile/op_model_mipsxx.c
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@ -32,8 +32,11 @@
#define M_COUNTER_OVERFLOW (1UL << 31)
#ifdef CONFIG_MIPS_MT_SMP
#define WHAT (M_TC_EN_VPE | M_PERFCTL_VPEID(smp_processor_id()))
#define vpe_id() smp_processor_id()
static int cpu_has_mipsmt_pertccounters;
#define WHAT (M_TC_EN_VPE | \
M_PERFCTL_VPEID(cpu_data[smp_processor_id()].vpe_id))
#define vpe_id() (cpu_has_mipsmt_pertccounters ? \
0 : cpu_data[smp_processor_id()].vpe_id)
/*
* The number of bits to shift to convert between counters per core and
@ -243,11 +246,11 @@ static inline int __n_counters(void)
{
if (!(read_c0_config1() & M_CONFIG1_PC))
return 0;
if (!(r_c0_perfctrl0() & M_PERFCTL_MORE))
if (!(read_c0_perfctrl0() & M_PERFCTL_MORE))
return 1;
if (!(r_c0_perfctrl1() & M_PERFCTL_MORE))
if (!(read_c0_perfctrl1() & M_PERFCTL_MORE))
return 2;
if (!(r_c0_perfctrl2() & M_PERFCTL_MORE))
if (!(read_c0_perfctrl2() & M_PERFCTL_MORE))
return 3;
return 4;
@ -274,8 +277,9 @@ static inline int n_counters(void)
return counters;
}
static inline void reset_counters(int counters)
static void reset_counters(void *arg)
{
int counters = (int)arg;
switch (counters) {
case 4:
w_c0_perfctrl3(0);
@ -302,9 +306,12 @@ static int __init mipsxx_init(void)
return -ENODEV;
}
reset_counters(counters);
counters = counters_total_to_per_cpu(counters);
#ifdef CONFIG_MIPS_MT_SMP
cpu_has_mipsmt_pertccounters = read_c0_config7() & (1<<19);
if (!cpu_has_mipsmt_pertccounters)
counters = counters_total_to_per_cpu(counters);
#endif
on_each_cpu(reset_counters, (void *)counters, 0, 1);
op_model_mipsxx_ops.num_counters = counters;
switch (current_cpu_type()) {
@ -320,6 +327,13 @@ static int __init mipsxx_init(void)
op_model_mipsxx_ops.cpu_type = "mips/25K";
break;
case CPU_1004K:
#if 0
/* FIXME: report as 34K for now */
op_model_mipsxx_ops.cpu_type = "mips/1004K";
break;
#endif
case CPU_34K:
op_model_mipsxx_ops.cpu_type = "mips/34K";
break;
@ -365,7 +379,7 @@ static void mipsxx_exit(void)
int counters = op_model_mipsxx_ops.num_counters;
counters = counters_per_cpu_to_total(counters);
reset_counters(counters);
on_each_cpu(reset_counters, (void *)counters, 0, 1);
perf_irq = null_perf_irq;
}