diff options
| author | Jisheng Zhang <Jisheng.Zhang@synaptics.com> | 2021-02-10 09:44:09 +0300 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2021-03-15 14:04:01 +0300 |
| commit | 0101947dbcc3204f08fb5b69a21dbd4b1535cad6 (patch) | |
| tree | 2ba855550f780984909662ad447621b10be76c99 /drivers/tee/optee/optee_trace.h | |
| parent | a38fd8748464831584a19438cbb3082b5a2dab15 (diff) | |
| download | linux-0101947dbcc3204f08fb5b69a21dbd4b1535cad6.tar.xz | |
tee: optee: add invoke_fn tracepoints
Add tracepoints to retrieve information about the invoke_fn. This would
help to measure how many invoke_fn are triggered and how long it takes
to complete one invoke_fn call.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'drivers/tee/optee/optee_trace.h')
| -rw-r--r-- | drivers/tee/optee/optee_trace.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/tee/optee/optee_trace.h b/drivers/tee/optee/optee_trace.h new file mode 100644 index 000000000000..7c954eefa4bf --- /dev/null +++ b/drivers/tee/optee/optee_trace.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * optee trace points + * + * Copyright (C) 2021 Synaptics Incorporated + * Author: Jisheng Zhang <jszhang@kernel.org> + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM optee + +#if !defined(_TRACE_OPTEE_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_OPTEE_H + +#include <linux/arm-smccc.h> +#include <linux/tracepoint.h> +#include "optee_private.h" + +TRACE_EVENT(optee_invoke_fn_begin, + TP_PROTO(struct optee_rpc_param *param), + TP_ARGS(param), + + TP_STRUCT__entry( + __field(void *, param) + __array(u32, args, 8) + ), + + TP_fast_assign( + __entry->param = param; + BUILD_BUG_ON(sizeof(*param) < sizeof(__entry->args)); + memcpy(__entry->args, param, sizeof(__entry->args)); + ), + + TP_printk("param=%p (%x, %x, %x, %x, %x, %x, %x, %x)", __entry->param, + __entry->args[0], __entry->args[1], __entry->args[2], + __entry->args[3], __entry->args[4], __entry->args[5], + __entry->args[6], __entry->args[7]) +); + +TRACE_EVENT(optee_invoke_fn_end, + TP_PROTO(struct optee_rpc_param *param, struct arm_smccc_res *res), + TP_ARGS(param, res), + + TP_STRUCT__entry( + __field(void *, param) + __array(unsigned long, rets, 4) + ), + + TP_fast_assign( + __entry->param = param; + BUILD_BUG_ON(sizeof(*res) < sizeof(__entry->rets)); + memcpy(__entry->rets, res, sizeof(__entry->rets)); + ), + + TP_printk("param=%p ret (%lx, %lx, %lx, %lx)", __entry->param, + __entry->rets[0], __entry->rets[1], __entry->rets[2], + __entry->rets[3]) +); +#endif /* _TRACE_OPTEE_H */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE optee_trace + +/* This part must be outside protection */ +#include <trace/define_trace.h> |