On Wed, Jul 02, 2014 at 02:17:08AM +0100, Stephen Rothwell wrote:
> Hi Will,
Hi Stephen,
> Today's linux-next merge of the arm-perf tree got a conflict in
> arch/arm/kernel/perf_event_cpu.c between commit 324bbc0804ac ("ARM:
> make it easier to check the CPU part number correctly") from the arm
> tree and commit 6f73e8ababdd ("arm: perf: clean up PMU names") from the
> arm-perf tree.
>
> I fixed it up (see below) and can carry the fix as necessary (no action
> is required).
Looks good, thanks.
Russell -- could you put your CPU part number patches on a stable branch
please? That way I can send you a pull request based on that (or you can fix
the conflicts up yourself, just let me know what you prefer).
Will
> diff --cc arch/arm/kernel/perf_event_cpu.c
> index c02c2e8c877d,c63dc4201a7f..000000000000
> --- a/arch/arm/kernel/perf_event_cpu.c
> +++ b/arch/arm/kernel/perf_event_cpu.c
> @@@ -254,35 -259,38 +257,39 @@@ static int probe_current_pmu(struct arm
>
> pr_info("probing PMU on CPU %d\n", cpu);
>
> + switch (read_cpuid_part()) {
> /* ARM Ltd CPUs. */
> - if (implementor == ARM_CPU_IMP_ARM) {
> - switch (part_number) {
> - case ARM_CPU_PART_ARM1136:
> - ret = armv6_1136_pmu_init(pmu);
> - break;
> - case ARM_CPU_PART_ARM1156:
> - ret = armv6_1156_pmu_init(pmu);
> - break;
> - case ARM_CPU_PART_ARM1176:
> - ret = armv6_1176_pmu_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;
> - }
> - /* 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;
> + case ARM_CPU_PART_ARM1136:
> ++ ret = armv6_1136_pmu_init(pmu);
> ++ break;
> + case ARM_CPU_PART_ARM1156:
> ++ ret = armv6_1156_pmu_init(pmu);
> ++ break;
> + case ARM_CPU_PART_ARM1176:
> - ret = armv6pmu_init(pmu);
> ++ ret = armv6_1176_pmu_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;
> +
> + default:
> + if (read_cpuid_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;
> + }
> }
> + break;
> }
>
> put_cpu();
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