Messages in this thread Patch in this message | | | From | Len Brown <> | Subject | [PATCH 08/14] powercap/intel_rapl: Support multi-die/package | Date | Tue, 26 Feb 2019 01:20:06 -0500 |
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From: Zhang Rui <rui.zhang@intel.com>
On the new dual-die/package systems, the RAPL MSR becomes die-scope. Thus instead of one powercap device per physical package, now there should be one powercap device for each unique die on these systems.
This patch introduces intel_rapl driver support for new dual-die/package systems.
On the hardwares that do not have multi-die, topology_logical_die_id() equals topology_physical_package_id(), thus there is no functional change.
Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: linux-pm@vger.kernel.org --- drivers/powercap/intel_rapl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c index 6057d9695fed..8723e9ae7436 100644 --- a/drivers/powercap/intel_rapl.c +++ b/drivers/powercap/intel_rapl.c @@ -266,7 +266,7 @@ static struct rapl_domain *platform_rapl_domain; /* Platform (PSys) domain */ /* caller to ensure CPU hotplug lock is held */ static struct rapl_package *rapl_find_package(int cpu) { - int id = topology_physical_package_id(cpu); + int id = topology_logical_die_id(cpu); struct rapl_package *rp; list_for_each_entry(rp, &rapl_packages, plist) { @@ -1457,7 +1457,7 @@ static void rapl_remove_package(struct rapl_package *rp) /* called from CPU hotplug notifier, hotplug lock held */ static struct rapl_package *rapl_add_package(int cpu) { - int id = topology_physical_package_id(cpu); + int id = topology_logical_die_id(cpu); struct rapl_package *rp; int ret; -- 2.18.0-rc0
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