lkml.org 
[lkml]   [2019]   [May]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 10/18] powercap/intel_rapl: Support multi-die/package
Date
From: Zhang Rui <rui.zhang@intel.com>

RAPL "package" domains are actually implemented in hardware per-die.
Thus, the new multi-die/package systems have mulitple domains
within each physical package.

Update the intel_rapl driver to be "die aware" -- exporting multiple
domains within a single package, when present.
No change on single die/package systems.

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 3c3c0c23180b..9202dbcef96d 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_domain(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) {
@@ -1459,7 +1459,7 @@ 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
\
 
 \ /
  Last update: 2019-05-01 06:26    [W:0.095 / U:0.080 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site