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Merge branch 'pm-cpufreq'

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* pm-cpufreq: (36 commits)
  cpufreq: scpi: remove arm_big_little dependency
  drivers: psci: remove cluster terminology and dependency on physical_package_id
  cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
  cpufreq: intel_pstate: Add Skylake servers support
  cpufreq: intel_pstate: Replace bxt_funcs with core_funcs
  cpufreq: imx6q: add 696MHz operating point for i.mx6ul
  ARM: dts: imx6ul: add 696MHz operating point
  cpufreq: stats: Change return type of cpufreq_stats_update() as void
  powernv-cpufreq: Treat pstates as opaque 8-bit values
  powernv-cpufreq: Fix pstate_to_idx() to handle non-continguous pstates
  powernv-cpufreq: Add helper to extract pstate from PMSR
  cpu_cooling: Remove static-power related documentation
  cpufreq: imx6q: switch to Use clk_bulk_get() to refine clk operations
  PM / OPP: Make local function ti_opp_supply_set_opp() static
  PM / OPP: Add ti-opp-supply driver
  dt-bindings: opp: Introduce ti-opp-supply bindings
  cpufreq: ti-cpufreq: Add support for multiple regulators
  cpufreq: ti-cpufreq: Convert to module_platform_driver
  cpufreq: Add DVFS support for Armada 37xx
  MAINTAINERS: add new entries for Armada 37xx cpufreq driver
  ...
This commit is contained in:
Rafael J. Wysocki 2018-01-18 02:52:56 +01:00
commit f31c376025
28 changed files with 1361 additions and 678 deletions
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46
drivers/firmware/psci_checker.c
View file

@ -77,8 +77,8 @@ static int psci_ops_check(void)
return 0;
}
static int find_clusters(const struct cpumask *cpus,
const struct cpumask **clusters)
static int find_cpu_groups(const struct cpumask *cpus,
const struct cpumask **cpu_groups)
{
unsigned int nb = 0;
cpumask_var_t tmp;
@ -88,11 +88,11 @@ static int find_clusters(const struct cpumask *cpus,
cpumask_copy(tmp, cpus);
while (!cpumask_empty(tmp)) {
const struct cpumask *cluster =
const struct cpumask *cpu_group =
topology_core_cpumask(cpumask_any(tmp));
clusters[nb++] = cluster;
cpumask_andnot(tmp, tmp, cluster);
cpu_groups[nb++] = cpu_group;
cpumask_andnot(tmp, tmp, cpu_group);
}
free_cpumask_var(tmp);
@ -170,24 +170,24 @@ static int hotplug_tests(void)
{
int err;
cpumask_var_t offlined_cpus;
int i, nb_cluster;
const struct cpumask **clusters;
int i, nb_cpu_group;
const struct cpumask **cpu_groups;
char *page_buf;
err = -ENOMEM;
if (!alloc_cpumask_var(&offlined_cpus, GFP_KERNEL))
return err;
/* We may have up to nb_available_cpus clusters. */
clusters = kmalloc_array(nb_available_cpus, sizeof(*clusters),
GFP_KERNEL);
if (!clusters)
/* We may have up to nb_available_cpus cpu_groups. */
cpu_groups = kmalloc_array(nb_available_cpus, sizeof(*cpu_groups),
GFP_KERNEL);
if (!cpu_groups)
goto out_free_cpus;
page_buf = (char *)__get_free_page(GFP_KERNEL);
if (!page_buf)
goto out_free_clusters;
goto out_free_cpu_groups;
err = 0;
nb_cluster = find_clusters(cpu_online_mask, clusters);
nb_cpu_group = find_cpu_groups(cpu_online_mask, cpu_groups);
/*
* Of course the last CPU cannot be powered down and cpu_down() should
@ -197,24 +197,22 @@ static int hotplug_tests(void)
err += down_and_up_cpus(cpu_online_mask, offlined_cpus);
/*
* Take down CPUs by cluster this time. When the last CPU is turned
* off, the cluster itself should shut down.
* Take down CPUs by cpu group this time. When the last CPU is turned
* off, the cpu group itself should shut down.
*/
for (i = 0; i < nb_cluster; ++i) {
int cluster_id =
topology_physical_package_id(cpumask_any(clusters[i]));
for (i = 0; i < nb_cpu_group; ++i) {
ssize_t len = cpumap_print_to_pagebuf(true, page_buf,
clusters[i]);
cpu_groups[i]);
/* Remove trailing newline. */
page_buf[len - 1] = '\0';
pr_info("Trying to turn off and on again cluster %d "
"(CPUs %s)\n", cluster_id, page_buf);
err += down_and_up_cpus(clusters[i], offlined_cpus);
pr_info("Trying to turn off and on again group %d (CPUs %s)\n",
i, page_buf);
err += down_and_up_cpus(cpu_groups[i], offlined_cpus);
}
free_page((unsigned long)page_buf);
out_free_clusters:
kfree(clusters);
out_free_cpu_groups:
kfree(cpu_groups);
out_free_cpus:
free_cpumask_var(offlined_cpus);
return err;