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firmware: qcom: scm: instrument SMC call path with tracepoints

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Wire the five tracepoints defined in qcom_scm_trace.h into the SMC
execution path by including the header with CREATE_TRACE_POINTS.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Yuvaraj Ranganathan <yuvaraj.ranganathan@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260522-scm-tracepoints-v2-2-e27cdbe0c585@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Yuvaraj Ranganathan
2026-05-22 12:09:00 +05:30
committed by Bjorn Andersson
parent f6bb2daa45
commit 41329e7236
2 changed files with 11 additions and 0 deletions
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1
drivers/firmware/qcom/Makefile
View File

@@ -5,6 +5,7 @@
obj-$(CONFIG_QCOM_SCM) += qcom-scm.o
qcom-scm-objs += qcom_scm.o qcom_scm-smc.o qcom_scm-legacy.o
CFLAGS_qcom_scm-smc.o := -I$(src)
obj-$(CONFIG_QCOM_TZMEM) += qcom_tzmem.o
obj-$(CONFIG_QCOM_QSEECOM) += qcom_qseecom.o
obj-$(CONFIG_QCOM_QSEECOM_UEFISECAPP) += qcom_qseecom_uefisecapp.o

10
drivers/firmware/qcom/qcom_scm-smc.c
View File

@@ -24,6 +24,9 @@ struct arm_smccc_args {
unsigned long args[8];
};
#define CREATE_TRACE_POINTS
#include "qcom_scm_trace.h"
static DEFINE_MUTEX(qcom_scm_lock);
#define QCOM_SCM_EBUSY_WAIT_MS 30
@@ -44,6 +47,7 @@ static void __scm_smc_do_quirk(const struct arm_smccc_args *smc,
quirk.state.a6 = 0;
do {
trace_scm_smc_request(a0, smc);
arm_smccc_smc_quirk(a0, smc->args[1], smc->args[2],
smc->args[3], smc->args[4], smc->args[5],
quirk.state.a6, smc->args[7], res, &quirk);
@@ -83,6 +87,7 @@ int scm_get_wq_ctx(u32 *wq_ctx, u32 *flags, u32 *more_pending)
if (ret)
return ret;
trace_scm_waitq_get_wq_ctx(get_wq_res.a1, get_wq_res.a2, get_wq_res.a3);
*wq_ctx = get_wq_res.a1;
*flags = get_wq_res.a2;
*more_pending = get_wq_res.a3;
@@ -105,10 +110,12 @@ static int __scm_smc_do_quirk_handle_waitq(struct device *dev, struct arm_smccc_
wq_ctx = res->a1;
smc_call_ctx = res->a2;
trace_scm_waitq_sleep(wq_ctx, smc_call_ctx);
ret = qcom_scm_wait_for_wq_completion(wq_ctx);
if (ret)
return ret;
trace_scm_waitq_resume(smc_call_ctx);
fill_wq_resume_args(&resume, smc_call_ctx);
smc = &resume;
}
@@ -201,6 +208,9 @@ int __scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc,
}
ret = __scm_smc_do(dev, &smc, &smc_res, atomic);
trace_scm_smc_done(ret, smc.args[0], &smc_res);
if (ret)
return ret;