mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-05 16:37:50 +00:00
965a9d75e3
- Runtime verification infrastructure
This is the biggest change for this pull request. It introduces the
runtime verification that is necessary for running Linux on safety
critical systems. It allows for deterministic automata models to be
inserted into the kernel that will attach to tracepoints, where the
information on these tracepoints will move the model from state to state.
If a state is encountered that does not belong to the model, it will then
activate a given reactor, that could just inform the user or even panic
the kernel (for which safety critical systems will detect and can recover
from).
- Two monitor models are also added: Wakeup In Preemptive (WIP - not to be
confused with "work in progress"), and Wakeup While Not Running (WWNR).
- Added __vstring() helper to the TRACE_EVENT() macro to replace several
vsnprintf() usages that were all doing it wrong.
- eprobes now can have their event autogenerated when the event name is left
off.
- The rest is various cleanups and fixes.
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Merge tag 'trace-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
- Runtime verification infrastructure
This is the biggest change here. It introduces the runtime
verification that is necessary for running Linux on safety critical
systems.
It allows for deterministic automata models to be inserted into the
kernel that will attach to tracepoints, where the information on
these tracepoints will move the model from state to state.
If a state is encountered that does not belong to the model, it will
then activate a given reactor, that could just inform the user or
even panic the kernel (for which safety critical systems will detect
and can recover from).
- Two monitor models are also added: Wakeup In Preemptive (WIP - not to
be confused with "work in progress"), and Wakeup While Not Running
(WWNR).
- Added __vstring() helper to the TRACE_EVENT() macro to replace
several vsnprintf() usages that were all doing it wrong.
- eprobes now can have their event autogenerated when the event name is
left off.
- The rest is various cleanups and fixes.
* tag 'trace-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (50 commits)
rv: Unlock on error path in rv_unregister_reactor()
tracing: Use alignof__(struct {type b;}) instead of offsetof()
tracing/eprobe: Show syntax error logs in error_log file
scripts/tracing: Fix typo 'the the' in comment
tracepoints: It is CONFIG_TRACEPOINTS not CONFIG_TRACEPOINT
tracing: Use free_trace_buffer() in allocate_trace_buffers()
tracing: Use a struct alignof to determine trace event field alignment
rv/reactor: Add the panic reactor
rv/reactor: Add the printk reactor
rv/monitor: Add the wwnr monitor
rv/monitor: Add the wip monitor
rv/monitor: Add the wip monitor skeleton created by dot2k
Documentation/rv: Add deterministic automata instrumentation documentation
Documentation/rv: Add deterministic automata monitor synthesis documentation
tools/rv: Add dot2k
Documentation/rv: Add deterministic automaton documentation
tools/rv: Add dot2c
Documentation/rv: Add a basic documentation
rv/include: Add instrumentation helper functions
rv/include: Add deterministic automata monitor definition via C macros
...
277 lines
6.8 KiB
C
277 lines
6.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/**
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* mtu3_trace.h - trace support
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*
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* Copyright (C) 2019 MediaTek Inc.
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*
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* Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
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*/
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM mtu3
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#if !defined(__MTU3_TRACE_H__) || defined(TRACE_HEADER_MULTI_READ)
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#define __MTU3_TRACE_H__
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#include <linux/types.h>
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#include <linux/tracepoint.h>
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#include "mtu3.h"
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TRACE_EVENT(mtu3_log,
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TP_PROTO(struct device *dev, struct va_format *vaf),
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TP_ARGS(dev, vaf),
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TP_STRUCT__entry(
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__string(name, dev_name(dev))
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__vstring(msg, vaf->fmt, vaf->va)
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),
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TP_fast_assign(
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__assign_str(name, dev_name(dev));
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__assign_vstr(msg, vaf->fmt, vaf->va);
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),
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TP_printk("%s: %s", __get_str(name), __get_str(msg))
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);
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TRACE_EVENT(mtu3_u3_ltssm_isr,
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TP_PROTO(u32 intr),
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TP_ARGS(intr),
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TP_STRUCT__entry(
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__field(u32, intr)
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),
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TP_fast_assign(
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__entry->intr = intr;
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),
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TP_printk("(%08x) %s %s %s %s %s %s", __entry->intr,
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__entry->intr & HOT_RST_INTR ? "HOT_RST" : "",
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__entry->intr & WARM_RST_INTR ? "WARM_RST" : "",
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__entry->intr & ENTER_U3_INTR ? "ENT_U3" : "",
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__entry->intr & EXIT_U3_INTR ? "EXIT_U3" : "",
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__entry->intr & VBUS_RISE_INTR ? "VBUS_RISE" : "",
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__entry->intr & VBUS_FALL_INTR ? "VBUS_FALL" : ""
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)
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);
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TRACE_EVENT(mtu3_u2_common_isr,
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TP_PROTO(u32 intr),
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TP_ARGS(intr),
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TP_STRUCT__entry(
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__field(u32, intr)
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),
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TP_fast_assign(
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__entry->intr = intr;
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),
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TP_printk("(%08x) %s %s %s", __entry->intr,
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__entry->intr & SUSPEND_INTR ? "SUSPEND" : "",
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__entry->intr & RESUME_INTR ? "RESUME" : "",
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__entry->intr & RESET_INTR ? "RESET" : ""
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)
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);
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TRACE_EVENT(mtu3_qmu_isr,
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TP_PROTO(u32 done_intr, u32 exp_intr),
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TP_ARGS(done_intr, exp_intr),
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TP_STRUCT__entry(
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__field(u32, done_intr)
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__field(u32, exp_intr)
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),
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TP_fast_assign(
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__entry->done_intr = done_intr;
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__entry->exp_intr = exp_intr;
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),
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TP_printk("done (tx %04x, rx %04x), exp (%08x)",
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__entry->done_intr & 0xffff,
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__entry->done_intr >> 16,
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__entry->exp_intr
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)
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);
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DECLARE_EVENT_CLASS(mtu3_log_setup,
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TP_PROTO(struct usb_ctrlrequest *setup),
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TP_ARGS(setup),
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TP_STRUCT__entry(
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__field(__u8, bRequestType)
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__field(__u8, bRequest)
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__field(__u16, wValue)
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__field(__u16, wIndex)
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__field(__u16, wLength)
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),
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TP_fast_assign(
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__entry->bRequestType = setup->bRequestType;
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__entry->bRequest = setup->bRequest;
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__entry->wValue = le16_to_cpu(setup->wValue);
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__entry->wIndex = le16_to_cpu(setup->wIndex);
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__entry->wLength = le16_to_cpu(setup->wLength);
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),
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TP_printk("setup - %02x %02x %04x %04x %04x",
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__entry->bRequestType, __entry->bRequest,
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__entry->wValue, __entry->wIndex, __entry->wLength
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)
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);
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DEFINE_EVENT(mtu3_log_setup, mtu3_handle_setup,
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TP_PROTO(struct usb_ctrlrequest *setup),
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TP_ARGS(setup)
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);
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DECLARE_EVENT_CLASS(mtu3_log_request,
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TP_PROTO(struct mtu3_request *mreq),
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TP_ARGS(mreq),
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TP_STRUCT__entry(
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__string(name, mreq->mep->name)
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__field(struct mtu3_request *, mreq)
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__field(struct qmu_gpd *, gpd)
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__field(unsigned int, actual)
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__field(unsigned int, length)
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__field(int, status)
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__field(int, zero)
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__field(int, no_interrupt)
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),
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TP_fast_assign(
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__assign_str(name, mreq->mep->name);
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__entry->mreq = mreq;
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__entry->gpd = mreq->gpd;
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__entry->actual = mreq->request.actual;
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__entry->length = mreq->request.length;
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__entry->status = mreq->request.status;
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__entry->zero = mreq->request.zero;
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__entry->no_interrupt = mreq->request.no_interrupt;
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),
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TP_printk("%s: req %p gpd %p len %u/%u %s%s --> %d",
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__get_str(name), __entry->mreq, __entry->gpd,
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__entry->actual, __entry->length,
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__entry->zero ? "Z" : "z",
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__entry->no_interrupt ? "i" : "I",
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__entry->status
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)
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);
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DEFINE_EVENT(mtu3_log_request, mtu3_alloc_request,
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TP_PROTO(struct mtu3_request *req),
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TP_ARGS(req)
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);
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DEFINE_EVENT(mtu3_log_request, mtu3_free_request,
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TP_PROTO(struct mtu3_request *req),
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TP_ARGS(req)
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);
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DEFINE_EVENT(mtu3_log_request, mtu3_gadget_queue,
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TP_PROTO(struct mtu3_request *req),
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TP_ARGS(req)
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);
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DEFINE_EVENT(mtu3_log_request, mtu3_gadget_dequeue,
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TP_PROTO(struct mtu3_request *req),
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TP_ARGS(req)
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);
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DEFINE_EVENT(mtu3_log_request, mtu3_req_complete,
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TP_PROTO(struct mtu3_request *req),
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TP_ARGS(req)
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);
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DECLARE_EVENT_CLASS(mtu3_log_gpd,
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TP_PROTO(struct mtu3_ep *mep, struct qmu_gpd *gpd),
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TP_ARGS(mep, gpd),
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TP_STRUCT__entry(
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__string(name, mep->name)
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__field(struct qmu_gpd *, gpd)
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__field(u32, dw0)
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__field(u32, dw1)
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__field(u32, dw2)
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__field(u32, dw3)
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),
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TP_fast_assign(
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__assign_str(name, mep->name);
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__entry->gpd = gpd;
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__entry->dw0 = le32_to_cpu(gpd->dw0_info);
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__entry->dw1 = le32_to_cpu(gpd->next_gpd);
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__entry->dw2 = le32_to_cpu(gpd->buffer);
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__entry->dw3 = le32_to_cpu(gpd->dw3_info);
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),
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TP_printk("%s: gpd %p - %08x %08x %08x %08x",
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__get_str(name), __entry->gpd,
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__entry->dw0, __entry->dw1,
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__entry->dw2, __entry->dw3
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)
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);
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DEFINE_EVENT(mtu3_log_gpd, mtu3_prepare_gpd,
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TP_PROTO(struct mtu3_ep *mep, struct qmu_gpd *gpd),
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TP_ARGS(mep, gpd)
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);
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DEFINE_EVENT(mtu3_log_gpd, mtu3_complete_gpd,
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TP_PROTO(struct mtu3_ep *mep, struct qmu_gpd *gpd),
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TP_ARGS(mep, gpd)
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);
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DEFINE_EVENT(mtu3_log_gpd, mtu3_zlp_exp_gpd,
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TP_PROTO(struct mtu3_ep *mep, struct qmu_gpd *gpd),
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TP_ARGS(mep, gpd)
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);
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DECLARE_EVENT_CLASS(mtu3_log_ep,
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TP_PROTO(struct mtu3_ep *mep),
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TP_ARGS(mep),
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TP_STRUCT__entry(
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__string(name, mep->name)
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__field(unsigned int, type)
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__field(unsigned int, slot)
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__field(unsigned int, maxp)
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__field(unsigned int, mult)
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__field(unsigned int, maxburst)
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__field(unsigned int, flags)
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__field(unsigned int, direction)
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__field(struct mtu3_gpd_ring *, gpd_ring)
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),
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TP_fast_assign(
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__assign_str(name, mep->name);
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__entry->type = mep->type;
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__entry->slot = mep->slot;
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__entry->maxp = mep->ep.maxpacket;
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__entry->mult = mep->ep.mult;
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__entry->maxburst = mep->ep.maxburst;
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__entry->flags = mep->flags;
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__entry->direction = mep->is_in;
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__entry->gpd_ring = &mep->gpd_ring;
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),
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TP_printk("%s: type %s maxp %d slot %d mult %d burst %d ring %p/%pad flags %c:%c%c%c:%c",
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__get_str(name), usb_ep_type_string(__entry->type),
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__entry->maxp, __entry->slot,
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__entry->mult, __entry->maxburst,
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__entry->gpd_ring, &__entry->gpd_ring->dma,
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__entry->flags & MTU3_EP_ENABLED ? 'E' : 'e',
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__entry->flags & MTU3_EP_STALL ? 'S' : 's',
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__entry->flags & MTU3_EP_WEDGE ? 'W' : 'w',
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__entry->flags & MTU3_EP_BUSY ? 'B' : 'b',
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__entry->direction ? '<' : '>'
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)
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);
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DEFINE_EVENT(mtu3_log_ep, mtu3_gadget_ep_enable,
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TP_PROTO(struct mtu3_ep *mep),
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TP_ARGS(mep)
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);
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DEFINE_EVENT(mtu3_log_ep, mtu3_gadget_ep_disable,
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TP_PROTO(struct mtu3_ep *mep),
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TP_ARGS(mep)
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);
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DEFINE_EVENT(mtu3_log_ep, mtu3_gadget_ep_set_halt,
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TP_PROTO(struct mtu3_ep *mep),
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TP_ARGS(mep)
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);
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#endif /* __MTU3_TRACE_H__ */
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/* this part has to be here */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH .
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE mtu3_trace
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#include <trace/define_trace.h>
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