Commit b10b3efb authored by Kan Liang's avatar Kan Liang Committed by Thomas Gleixner

perf/x86/intel/rapl: Support multi-die/package

RAPL becomes die-scope on Xeon Cascade Lake-AP. Perf RAPL driver needs to
support die-scope RAPL domain.

Use topology_logical_die_id() to replace topology_logical_package_id().
For previous platforms which doesn't have multi-die,
topology_logical_die_id() is identical as topology_logical_package_id().

Use topology_die_cpumask() to replace topology_core_cpumask().  For
previous platforms which doesn't have multi-die, topology_die_cpumask() is
identical as topology_core_cpumask().

There is no functional change for previous platforms.
Signed-off-by: default avatarKan Liang <kan.liang@linux.intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarIngo Molnar <mingo@kernel.org>
Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/851320c8c87ba7a54e58ee8579c1bf566ce23cbb.1557769318.git.len.brown@intel.com
parent 1ff4a47b
...@@ -161,7 +161,7 @@ static u64 rapl_timer_ms; ...@@ -161,7 +161,7 @@ static u64 rapl_timer_ms;
static inline struct rapl_pmu *cpu_to_rapl_pmu(unsigned int cpu) static inline struct rapl_pmu *cpu_to_rapl_pmu(unsigned int cpu)
{ {
unsigned int pkgid = topology_logical_package_id(cpu); unsigned int pkgid = topology_logical_die_id(cpu);
/* /*
* The unsigned check also catches the '-1' return value for non * The unsigned check also catches the '-1' return value for non
...@@ -571,7 +571,7 @@ static int rapl_cpu_offline(unsigned int cpu) ...@@ -571,7 +571,7 @@ static int rapl_cpu_offline(unsigned int cpu)
pmu->cpu = -1; pmu->cpu = -1;
/* Find a new cpu to collect rapl events */ /* Find a new cpu to collect rapl events */
target = cpumask_any_but(topology_core_cpumask(cpu), cpu); target = cpumask_any_but(topology_die_cpumask(cpu), cpu);
/* Migrate rapl events to the new target */ /* Migrate rapl events to the new target */
if (target < nr_cpu_ids) { if (target < nr_cpu_ids) {
...@@ -598,14 +598,14 @@ static int rapl_cpu_online(unsigned int cpu) ...@@ -598,14 +598,14 @@ static int rapl_cpu_online(unsigned int cpu)
pmu->timer_interval = ms_to_ktime(rapl_timer_ms); pmu->timer_interval = ms_to_ktime(rapl_timer_ms);
rapl_hrtimer_init(pmu); rapl_hrtimer_init(pmu);
rapl_pmus->pmus[topology_logical_package_id(cpu)] = pmu; rapl_pmus->pmus[topology_logical_die_id(cpu)] = pmu;
} }
/* /*
* Check if there is an online cpu in the package which collects rapl * Check if there is an online cpu in the package which collects rapl
* events already. * events already.
*/ */
target = cpumask_any_and(&rapl_cpu_mask, topology_core_cpumask(cpu)); target = cpumask_any_and(&rapl_cpu_mask, topology_die_cpumask(cpu));
if (target < nr_cpu_ids) if (target < nr_cpu_ids)
return 0; return 0;
...@@ -675,7 +675,7 @@ static void cleanup_rapl_pmus(void) ...@@ -675,7 +675,7 @@ static void cleanup_rapl_pmus(void)
static int __init init_rapl_pmus(void) static int __init init_rapl_pmus(void)
{ {
int maxpkg = topology_max_packages(); int maxpkg = topology_max_packages() * topology_max_die_per_package();
size_t size; size_t size;
size = sizeof(*rapl_pmus) + maxpkg * sizeof(struct rapl_pmu *); size = sizeof(*rapl_pmus) + maxpkg * sizeof(struct rapl_pmu *);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment