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| author | Yuvaraj Ranganathan <yuvaraj.ranganathan@oss.qualcomm.com> | 2026-05-22 12:09:00 +0530 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-07-11 11:31:11 -0500 |
| commit | 41329e72363c02facfeae063ef304aa7ced68c3b (patch) | |
| tree | bd244a2c20d451ed7cefddcc9af6d4367e4d9556 | |
| parent | f6bb2daa4584229af155c2488b83151999315293 (diff) | |
| download | linux-next-41329e72363c02facfeae063ef304aa7ced68c3b.tar.gz linux-next-41329e72363c02facfeae063ef304aa7ced68c3b.zip | |
firmware: qcom: scm: instrument SMC call path with tracepoints
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>
| -rw-r--r-- | drivers/firmware/qcom/Makefile | 1 | ||||
| -rw-r--r-- | drivers/firmware/qcom/qcom_scm-smc.c | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/firmware/qcom/Makefile b/drivers/firmware/qcom/Makefile index 48801d18f37b..88ce74d74c3e 100644 --- a/drivers/firmware/qcom/Makefile +++ b/drivers/firmware/qcom/Makefile @@ -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 diff --git a/drivers/firmware/qcom/qcom_scm-smc.c b/drivers/firmware/qcom/qcom_scm-smc.c index 574930729ddd..01999c22659c 100644 --- a/drivers/firmware/qcom/qcom_scm-smc.c +++ b/drivers/firmware/qcom/qcom_scm-smc.c @@ -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; |