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ANDROID: scmi_cpufreq: Add restricted vendor hook for scmi_limit_notify_cb

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Include a restricted vendor hook to allow vendor modules to modify
thermal updates under scmi notifications.

Bug: 436290872
Change-Id: I57e33ea44b66986058008ac83737524a8c31aec0
Signed-off-by: Shaleen Agrawal <quic_shalagra@quicinc.com>
This commit is contained in:
Shaleen Agrawal
2025-08-04 14:14:40 -07:00
committed by John Stultz
parent 052da8f4d4
commit a475a3d8e5
3 changed files with 13 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/android/vendor_hooks.c
+1
View File
@@ -610,3 +610,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mm_migrate_one_page);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mm_remove_migration_pte_bypass);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mm_split_huge_page_bypass);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mm_try_split_folio_bypass);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_scmi_limit_notify_cb);
drivers/cpufreq/scmi-cpufreq.c
+7 -2
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@@ -21,6 +21,7 @@
#include <linux/scmi_protocol.h>
#include <linux/types.h>
#include <linux/units.h>
#include <trace/hooks/cpufreq.h>
struct scmi_data {
int domain_id;
@@ -188,11 +189,15 @@ static int scmi_limit_notify_cb(struct notifier_block *nb, unsigned long event,
struct scmi_data *priv = container_of(nb, struct scmi_data, limit_notify_nb);
struct scmi_perf_limits_report *limit_notify = data;
unsigned int limit_freq_khz;
int ret;
int ret = 0;
bool done;
limit_freq_khz = limit_notify->range_max_freq / HZ_PER_KHZ;
ret = freq_qos_update_request(&priv->limits_freq_req, limit_freq_khz);
trace_android_rvh_scmi_limit_notify_cb(&done, priv->cpu_dev, limit_freq_khz);
if (done)
return NOTIFY_OK;
if (ret < 0)
pr_warn("failed to update freq constraint: %d\n", ret);
include/trace/hooks/cpufreq.h
+5
View File
@@ -10,6 +10,7 @@
#include <trace/hooks/vendor_hooks.h>
struct cpufreq_policy;
struct device;
DECLARE_RESTRICTED_HOOK(android_rvh_show_max_freq,
TP_PROTO(struct cpufreq_policy *policy, unsigned int *max_freq),
@@ -42,6 +43,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_cpufreq_transition,
TP_PROTO(struct cpufreq_policy *policy),
TP_ARGS(policy), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_scmi_limit_notify_cb,
TP_PROTO(bool *done, struct device *cpu_dev, unsigned int limit_freq_khz),
TP_ARGS(done, cpu_dev, limit_freq_khz), 1);
#endif /* _TRACE_HOOK_CPUFREQ_H */
/* This part must be outside protection */
#include <trace/define_trace.h>