summaryrefslogtreecommitdiffstats
path: root/drivers/cpufreq/cppc_cpufreq.c
diff options
context:
space:
mode:
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-08-28 14:13:54 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-08-28 14:13:54 +0200
commit2114d59672abe42ca5e9415c83e292a2915c4dd0 (patch)
tree2c35869a2aea7e7eedb25c410b4e4645830fdde9 /drivers/cpufreq/cppc_cpufreq.c
parent885c429e06245d1a0faa76fb9c0e2dd7e856d8a3 (diff)
parent6e2f78c8b01345e785806352dec4f44d8d992f7e (diff)
downloadlinux-stable-2114d59672abe42ca5e9415c83e292a2915c4dd0.tar.gz
linux-stable-2114d59672abe42ca5e9415c83e292a2915c4dd0.tar.bz2
linux-stable-2114d59672abe42ca5e9415c83e292a2915c4dd0.zip
Merge branch 'pm-cpufreq'
Merge ARM cpufreq updates for 6.6: - Migrate various platforms to use remove callback returning void (Yangtao Li). - Add online/offline/exit hooks for Tegra driver (Sumit Gupta). - Explicitly include correct DT includes (Rob Herring). - Frequency domain updates for qcom-hw driver (Neil Armstrong). - Modify AMD pstate driver return the highest_perf value (Meng Li). - Generic cleanups for cppc, mediatek and powernow driver (Liao Chang, Konrad Dybcio). - Add more platforms to cpufreq-arm driver's blocklist (AngeloGioacchino Del Regno, Konrad Dybcio). - brcmstb-avs-cpufreq: Fix -Warray-bounds bug (Gustavo A. R. Silva). * pm-cpufreq: (33 commits) cpufreq: tegra194: remove opp table in exit hook cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit() cpufreq: tegra194: add online/offline hooks cpufreq: qcom-cpufreq-hw: add support for 4 freq domains dt-bindings: cpufreq: qcom-hw: add a 4th frequency domain cpufreq: cppc: Set fie_disabled to FIE_DISABLED if fails to create kworker_fie cpufreq: cppc: cppc_cpufreq_get_rate() returns zero in all error cases. cpufreq: Prefer to print cpuid in MIN/MAX QoS register error message cpufreq: amd-pstate-ut: Modify the function to get the highest_perf value cpufreq: mediatek-hw: Remove unused define cpufreq: blocklist more Qualcomm platforms in cpufreq-dt-platdev cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug cpufreq: blocklist MSM8998 in cpufreq-dt-platdev cpufreq: omap: Convert to platform remove callback returning void cpufreq: qoriq: Convert to platform remove callback returning void cpufreq: acpi: Convert to platform remove callback returning void cpufreq: tegra186: Convert to platform remove callback returning void cpufreq: qcom-nvmem: Convert to platform remove callback returning void cpufreq: kirkwood: Convert to platform remove callback returning void cpufreq: pcc-cpufreq: Convert to platform remove callback returning void ...
Diffstat (limited to 'drivers/cpufreq/cppc_cpufreq.c')
-rw-r--r--drivers/cpufreq/cppc_cpufreq.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c
index 022e3555407c..fe08ca419b3d 100644
--- a/drivers/cpufreq/cppc_cpufreq.c
+++ b/drivers/cpufreq/cppc_cpufreq.c
@@ -249,15 +249,19 @@ static void __init cppc_freq_invariance_init(void)
return;
kworker_fie = kthread_create_worker(0, "cppc_fie");
- if (IS_ERR(kworker_fie))
+ if (IS_ERR(kworker_fie)) {
+ pr_warn("%s: failed to create kworker_fie: %ld\n", __func__,
+ PTR_ERR(kworker_fie));
+ fie_disabled = FIE_DISABLED;
return;
+ }
ret = sched_setattr_nocheck(kworker_fie->task, &attr);
if (ret) {
pr_warn("%s: failed to set SCHED_DEADLINE: %d\n", __func__,
ret);
kthread_destroy_worker(kworker_fie);
- return;
+ fie_disabled = FIE_DISABLED;
}
}
@@ -267,7 +271,6 @@ static void cppc_freq_invariance_exit(void)
return;
kthread_destroy_worker(kworker_fie);
- kworker_fie = NULL;
}
#else
@@ -849,13 +852,13 @@ static unsigned int cppc_cpufreq_get_rate(unsigned int cpu)
ret = cppc_get_perf_ctrs(cpu, &fb_ctrs_t0);
if (ret)
- return ret;
+ return 0;
udelay(2); /* 2usec delay between sampling */
ret = cppc_get_perf_ctrs(cpu, &fb_ctrs_t1);
if (ret)
- return ret;
+ return 0;
delivered_perf = cppc_perf_from_fbctrs(cpu_data, &fb_ctrs_t0,
&fb_ctrs_t1);