#include <asm/current.h>
#include <asm/processor.h>
#include <asm/cputable.h>
+#include <asm/firmware.h>
#include <asm/hvcall.h>
#include <asm/prom.h>
#include <asm/systemcfg.h>
#include <asm/paca.h>
#include <asm/lppaca.h>
#include <asm/machdep.h>
+#include <asm/smp.h>
static DEFINE_PER_CPU(struct cpu, cpu_devices);
}
__setup("smt-snooze-delay=", setup_smt_snooze_delay);
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+
/*
* Enabling PMCs will slow partition context switch times so we only do
* it the first time we write to the PMCs.
void ppc64_enable_pmcs(void)
{
- unsigned long hid0;
-#ifdef CONFIG_PPC_PSERIES
- unsigned long set, reset;
- int ret;
-#endif /* CONFIG_PPC_PSERIES */
-
/* Only need to enable them once */
if (__get_cpu_var(pmcs_enabled))
return;
__get_cpu_var(pmcs_enabled) = 1;
- switch (systemcfg->platform) {
- case PLATFORM_PSERIES:
- case PLATFORM_POWERMAC:
- hid0 = mfspr(HID0);
- hid0 |= 1UL << (63 - 20);
-
- /* POWER4 requires the following sequence */
- asm volatile(
- "sync\n"
- "mtspr %1, %0\n"
- "mfspr %0, %1\n"
- "mfspr %0, %1\n"
- "mfspr %0, %1\n"
- "mfspr %0, %1\n"
- "mfspr %0, %1\n"
- "mfspr %0, %1\n"
- "isync" : "=&r" (hid0) : "i" (HID0), "0" (hid0):
- "memory");
- break;
-
-#ifdef CONFIG_PPC_PSERIES
- case PLATFORM_PSERIES_LPAR:
- set = 1UL << 63;
- reset = 0;
- ret = plpar_hcall_norets(H_PERFMON, set, reset);
- if (ret)
- printk(KERN_ERR "H_PERFMON call on cpu %u "
- "returned %d\n",
- smp_processor_id(), ret);
- break;
-#endif /* CONFIG_PPC_PSERIES */
-
- default:
- break;
- }
-
-#ifdef CONFIG_PPC_PSERIES
- /* instruct hypervisor to maintain PMCs */
- if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR)
- get_paca()->lppaca.pmcregs_in_use = 1;
-
- /*
- * On SMT machines we have to set the run latch in the ctrl register
- * in order to make PMC6 spin.
- */
- if (cpu_has_feature(CPU_FTR_SMT))
- ppc64_runlatch_on();
-#endif /* CONFIG_PPC_PSERIES */
+ if (ppc_md.enable_pmcs)
+ ppc_md.enable_pmcs();
}
-
-#else
-
-/* PMC stuff */
-void ppc64_enable_pmcs(void)
-{
- /* XXX Implement for iseries */
-}
-#endif /* CONFIG_PPC_MULTIPLATFORM */
-
EXPORT_SYMBOL(ppc64_enable_pmcs);
/* XXX convert to rusty's on_one_cpu */
if (cpu_has_feature(CPU_FTR_MMCRA))
sysdev_create_file(s, &attr_mmcra);
- sysdev_create_file(s, &attr_pmc1);
- sysdev_create_file(s, &attr_pmc2);
- sysdev_create_file(s, &attr_pmc3);
- sysdev_create_file(s, &attr_pmc4);
- sysdev_create_file(s, &attr_pmc5);
- sysdev_create_file(s, &attr_pmc6);
-
- if (cpu_has_feature(CPU_FTR_PMC8)) {
+ if (cur_cpu_spec->num_pmcs >= 1)
+ sysdev_create_file(s, &attr_pmc1);
+ if (cur_cpu_spec->num_pmcs >= 2)
+ sysdev_create_file(s, &attr_pmc2);
+ if (cur_cpu_spec->num_pmcs >= 3)
+ sysdev_create_file(s, &attr_pmc3);
+ if (cur_cpu_spec->num_pmcs >= 4)
+ sysdev_create_file(s, &attr_pmc4);
+ if (cur_cpu_spec->num_pmcs >= 5)
+ sysdev_create_file(s, &attr_pmc5);
+ if (cur_cpu_spec->num_pmcs >= 6)
+ sysdev_create_file(s, &attr_pmc6);
+ if (cur_cpu_spec->num_pmcs >= 7)
sysdev_create_file(s, &attr_pmc7);
+ if (cur_cpu_spec->num_pmcs >= 8)
sysdev_create_file(s, &attr_pmc8);
- }
-
+
if (cpu_has_feature(CPU_FTR_SMT))
sysdev_create_file(s, &attr_purr);
}
if (cpu_has_feature(CPU_FTR_MMCRA))
sysdev_remove_file(s, &attr_mmcra);
- sysdev_remove_file(s, &attr_pmc1);
- sysdev_remove_file(s, &attr_pmc2);
- sysdev_remove_file(s, &attr_pmc3);
- sysdev_remove_file(s, &attr_pmc4);
- sysdev_remove_file(s, &attr_pmc5);
- sysdev_remove_file(s, &attr_pmc6);
-
- if (cpu_has_feature(CPU_FTR_PMC8)) {
+ if (cur_cpu_spec->num_pmcs >= 1)
+ sysdev_remove_file(s, &attr_pmc1);
+ if (cur_cpu_spec->num_pmcs >= 2)
+ sysdev_remove_file(s, &attr_pmc2);
+ if (cur_cpu_spec->num_pmcs >= 3)
+ sysdev_remove_file(s, &attr_pmc3);
+ if (cur_cpu_spec->num_pmcs >= 4)
+ sysdev_remove_file(s, &attr_pmc4);
+ if (cur_cpu_spec->num_pmcs >= 5)
+ sysdev_remove_file(s, &attr_pmc5);
+ if (cur_cpu_spec->num_pmcs >= 6)
+ sysdev_remove_file(s, &attr_pmc6);
+ if (cur_cpu_spec->num_pmcs >= 7)
sysdev_remove_file(s, &attr_pmc7);
+ if (cur_cpu_spec->num_pmcs >= 8)
sysdev_remove_file(s, &attr_pmc8);
- }
if (cpu_has_feature(CPU_FTR_SMT))
sysdev_remove_file(s, &attr_purr);