/*
* CPU PMU identification and probing.
*/
static int probe_current_pmu(struct arm_pmu *pmu)
{
int cpu = get_cpu();
unsigned long implementor = read_cpuid_implementor();
unsigned long part_number = read_cpuid_part_number();
int ret = -ENODEV;
pr_info("probing PMU on CPU %d\n", cpu);
/* ARM Ltd CPUs. */
if (implementor == ARM_CPU_IMP_ARM) {
switch (part_number) {
case ARM_CPU_PART_ARM1136:
case ARM_CPU_PART_ARM1156:
case ARM_CPU_PART_ARM1176:
ret = armv6pmu_init(pmu);
break;
case ARM_CPU_PART_ARM11MPCORE:
ret = armv6mpcore_pmu_init(pmu);
break;
case ARM_CPU_PART_CORTEX_A8:
ret = armv7_a8_pmu_init(pmu);
break;
case ARM_CPU_PART_CORTEX_A9:
ret = armv7_a9_pmu_init(pmu);
break;
case ARM_CPU_PART_CORTEX_A5:
ret = armv7_a5_pmu_init(pmu);
break;
case ARM_CPU_PART_CORTEX_A15:
ret = armv7_a15_pmu_init(pmu);
break;
case ARM_CPU_PART_CORTEX_A7:
ret = armv7_a7_pmu_init(pmu);
break;
}
/* Intel CPUs [xscale]. */
} else if (implementor == ARM_CPU_IMP_INTEL) {
switch (xscale_cpu_arch_version()) {
case ARM_CPU_XSCALE_ARCH_V1:
ret = xscale1pmu_init(pmu);
break;
case ARM_CPU_XSCALE_ARCH_V2:
ret = xscale2pmu_init(pmu);
break;
}
}
put_cpu();
return ret;
}
/*
* CPU PMU identification and probing.
*/
static int probe_current_pmu(struct arm_pmu *pmu)
{
int cpu = get_cpu();
unsigned long cpuid = read_cpuid_id();
unsigned long implementor = (cpuid & 0xFF000000) >> 24;
unsigned long part_number = (cpuid & 0xFFF0);
int ret = -ENODEV;
pr_info("probing PMU on CPU %d\n", cpu);
/* ARM Ltd CPUs. */
if (0x41 == implementor) {
switch (part_number) {
case 0xB360: /* ARM1136 */
case 0xB560: /* ARM1156 */
case 0xB760: /* ARM1176 */
ret = armv6pmu_init(pmu);
break;
case 0xB020: /* ARM11mpcore */
ret = armv6mpcore_pmu_init(pmu);
break;
case 0xC080: /* Cortex-A8 */
ret = armv7_a8_pmu_init(pmu);
break;
case 0xC090: /* Cortex-A9 */
ret = armv7_a9_pmu_init(pmu);
break;
case 0xC050: /* Cortex-A5 */
ret = armv7_a5_pmu_init(pmu);
break;
case 0xC0F0: /* Cortex-A15 */
ret = armv7_a15_pmu_init(pmu);
break;
case 0xC070: /* Cortex-A7 */
ret = armv7_a7_pmu_init(pmu);
break;
}
/* Intel CPUs [xscale]. */
} else if (0x69 == implementor) {
part_number = (cpuid >> 13) & 0x7;
switch (part_number) {
case 1:
ret = xscale1pmu_init(pmu);
break;
case 2:
ret = xscale2pmu_init(pmu);
break;
}
}
