Alexandre Ghiti writes:
> For now, we use stop_machine() to patch the text and when we use IPIs for
> remote icache flushes, the system hangs since the irqs are disabled on all
> cpus.
>
> So instead, make sure every cpu executes the stop_machine() patching
> function which emits a local icache
Since the sched_priority for SCHED_OTHER is always 0, it makes no
sence to set it.
Setting nice for SCHED_OTHER seems more meaningful.
Signed-off-by: limingming3
---
tools/tracing/rtla/src/utils.c | 6 +++---
tools/tracing/rtla/src/utils.h | 2 ++
2 files changed, 5 insertions(+), 3
Hi Steven,
Steven Rostedt writes:
> On Tue, 06 Feb 2024 09:48:16 +0100
> Sven Schnelle wrote:
>
>> I added some logging, and the test is not triggering this issue. So i
>> assume the default of 128 cmdline entries is just to small. Sorry for
>> the noise. Lets see whether we're still
On Tue, 23 Jan 2024 09:51:01 +0100, Neil Armstrong wrote:
> Add the bindings and driver changes for DSP support on the
> SM8650 platform in order to enable the aDSP, cDSP and MPSS
> subsystems to boot.
>
> Compared to SM8550, where SM8650 uses the same dual firmware files,
> (dtb file and main
On Thu, 25 Jan 2024 22:35:11 +0100, Luca Weiss wrote:
> Add the MDSS_BCR reset that is found in the GCC of MSM8953 so we can
> make sure the MDSS gets properly reset before Linux starts using it.
>
> Also add some others that have been found in the LK sources.
>
>
Applied, thanks!
[3/3]
On Thu, 25 Jan 2024 22:56:24 +0100, Luca Weiss wrote:
> Add the GPU IOMMU and GPU nodes to the msm8953 dtsi so GPU can work.
>
> First of all, functionally this series looks fine, tested on
> sdm632-fairphone-fp3.
>
> Secondly and the reason this is marked RFC for now is basically just dt
>
On Wed, 24 Jan 2024 16:31:43 +0100, Luca Weiss wrote:
> Add the definitions for the various thermal zones found on the SM6350
> SoC. Hooking up GPU and CPU cooling can limit the clock speeds there to
> reduce the temperature again to good levels.
>
> Most thermal zones only have one critical
On Tue, Feb 6, 2024 at 10:52 PM Stefano Garzarella wrote:
>
> If VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK is not negotiated, we expect
> the driver to enable virtqueue before setting DRIVER_OK. If the driver
> tries anyway, better to fail right away as soon as we get the ioctl.
> Let's also update
On Tue, Feb 6, 2024 at 6:44 PM Paolo Abeni wrote:
>
> On Sat, 2024-02-03 at 10:56 +0800, Liang Chen wrote:
> > On Sat, Feb 3, 2024 at 12:20 AM Jesper Dangaard Brouer
> > wrote:
> > > On 02/02/2024 13.11, Liang Chen wrote:
> [...]
> > > > @@ -1033,6 +1039,16 @@ static void put_xdp_frags(struct
On Wed, Feb 7, 2024 at 10:28 AM richard clark
wrote:
>
> On Tue, Feb 6, 2024 at 5:39 PM Valentin Schneider wrote:
> >
> > You should have access to the generic fields which include the CPU from
> > which the event happens. Any of "CPU", "cpu" or "common_cpu" would match
> > this.
> >
> > So if
On Tue, Feb 6, 2024 at 5:39 PM Valentin Schneider wrote:
>
> You should have access to the generic fields which include the CPU from
> which the event happens. Any of "CPU", "cpu" or "common_cpu" would match
> this.
>
> So if you're on a recent enough kernel (v6.6 or above AFAICT), you should
>
On Sun, 4 Feb 2024 22:39:32 -0600
Jinghao Jia wrote:
> On 2/4/24 06:09, Masami Hiramatsu (Google) wrote:
> > On Sat, 3 Feb 2024 21:13:00 -0600
> > Jinghao Jia wrote:
> >
> >> With the instruction decoder, we are now able to decode and recognize
> >> instructions with opcode extensions. There
t; > > Worst case we end up with sc7280 which has yet another slightly
> > > > > > different UCSI / PMIC GLINK implementation, but the compatible
> > > > > > string
> > > > > > is already taken.
> > > > > > I still
For now, we use stop_machine() to patch the text and when we use IPIs for
remote icache flushes, the system hangs since the irqs are disabled on all
cpus.
So instead, make sure every cpu executes the stop_machine() patching
function which emits a local icache flush and then avoids the use of
On 2/6/24 1:06 PM, Bjorn Andersson wrote:
On Tue, Jan 23, 2024 at 10:04:03AM -0600, Andrew Davis wrote:
This disables runtime PM on module exit, allowing us to simplify
the probe exit path and remove callbacks. Do that here.
As with the later patch, unless I'm misreading the code, you already
On Tue, Jan 23, 2024 at 10:04:03AM -0600, Andrew Davis wrote:
> This disables runtime PM on module exit, allowing us to simplify
> the probe exit path and remove callbacks. Do that here.
As with the later patch, unless I'm misreading the code, you already do
disable runtime PM in
On Tue, Jan 23, 2024 at 10:04:04AM -0600, Andrew Davis wrote:
> This unregister the HW spinlock on module exit, allowing us to
> remove the remove callback. Do this here.
>
I interpret this as stating that the driver currently doesn't unregister
the spinlocks, but as far as I can see it does,
On 2/6/24 11:39 AM, Mathieu Poirier wrote:
> On Wed, Jan 31, 2024 at 04:48:12PM -0800, Tanmay Shah wrote:
> > In lockstep mode, r5 core0 uses TCM of R5 core1. Following is lockstep
> > mode memory region as per hardware reference manual.
> >
> > | *TCM* | *R5 View* | *Linux
On Wed, Jan 31, 2024 at 04:48:12PM -0800, Tanmay Shah wrote:
> In lockstep mode, r5 core0 uses TCM of R5 core1. Following is lockstep
> mode memory region as per hardware reference manual.
>
> | *TCM* | *R5 View* | *Linux view* |
> | R5_0 ATCM (128 KB) | 0x_ |
On Tue, Feb 6, 2024 at 3:52 PM Stefano Garzarella wrote:
>
> If VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK is not negotiated, we expect
> the driver to enable virtqueue before setting DRIVER_OK. If the driver
> tries anyway, better to fail right away as soon as we get the ioctl.
> Let's also update
On Tue, Feb 06, 2024 at 10:56:50AM -0500, Michael S. Tsirkin wrote:
better @subj: try late vq enable only if negotiated
I rewrote it 3/4 times, and before sending it I was not happy with the
result.
Thank you, much better! I'll change it in v2.
Stefano
better @subj: try late vq enable only if negotiated
On Tue, Feb 06, 2024 at 03:51:54PM +0100, Stefano Garzarella wrote:
> If VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK is not negotiated, we expect
> the driver to enable virtqueue before setting DRIVER_OK. If the driver
> tries anyway, better to fail
On Tue, Feb 06, 2024 at 12:05:29PM +0100, Daniel Bristot de Oliveira wrote:
> The following errors are showing up when compiling rtla with clang:
>
> $ make HOSTCC=clang CC=clang LLVM_IAS=1
> [...]
>
> clang -O -g -DVERSION=\"6.8.0-rc1\" -flto=auto -ffat-lto-objects
> -fexceptions
From: Masami Hiramatsu (Google)
This test case repeats define and undefine the fprobe dynamic event to
ensure that the fprobe does not cause any issue with such operations.
Signed-off-by: Masami Hiramatsu (Google)
---
.../test.d/dynevent/add_remove_fprobe_repeat.tc| 19
From: Masami Hiramatsu (Google)
Improve push and data reserve operation on the shadow stack for
several sequencial interrupts.
To push a ret_stack or data entry on the shadow stack, we need to
prepare an index (offset) entry before updating the stack pointer
(curr_ret_stack) so that unwinder
From: Steven Rostedt (VMware)
Add boot up selftest that passes variables from a function entry to a
function exit, and make sure that they do get passed around.
Signed-off-by: Steven Rostedt (VMware)
Signed-off-by: Masami Hiramatsu (Google)
---
Changes in v2:
- Add reserved size test.
-
From: Masami Hiramatsu (Google)
Update fprobe documentation for the new fprobe on function-graph
tracer. This includes some bahvior changes and pt_regs to
ftrace_regs interface change.
Signed-off-by: Masami Hiramatsu (Google)
---
Changes in v2:
- Update @fregs parameter explanation.
---
From: Masami Hiramatsu (Google)
Since the fprobe event does not support maxactive anymore, stop
testing the maxactive syntax error checking.
Signed-off-by: Masami Hiramatsu (Google)
---
.../ftrace/test.d/dynevent/fprobe_syntax_errors.tc |4 +---
1 file changed, 1 insertion(+), 3
From: Masami Hiramatsu (Google)
Remove depercated fprobe::nr_maxactive. This involves fprobe events to
rejects the maxactive number.
Signed-off-by: Masami Hiramatsu (Google)
---
Changes in v2:
- Newly added.
---
include/linux/fprobe.h |2 --
kernel/trace/trace_fprobe.c | 44
From: Masami Hiramatsu (Google)
Rewrite fprobe implementation on function-graph tracer.
Major API changes are:
- 'nr_maxactive' field is deprecated.
- This depends on CONFIG_DYNAMIC_FTRACE_WITH_ARGS or
!CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS, and
CONFIG_HAVE_FUNCTION_GRAPH_FREGS. So
From: Steven Rostedt (VMware)
Allow for instances to have their own ftrace_ops part of the fgraph_ops
that makes the funtion_graph tracer filter on the set_ftrace_filter file
of the instance and not the top instance.
Note that this also requires to update ftrace_graph_func() to call new
From: Masami Hiramatsu (Google)
Enable kprobe_multi feature if CONFIG_FPROBE is enabled. The pt_regs is
converted from ftrace_regs by ftrace_partial_regs(), thus some registers
may always returns 0. But it should be enough for function entry (access
arguments) and exit (access return value).
From: Masami Hiramatsu (Google)
Allow fprobe events to be enabled with CONFIG_DYNAMIC_FTRACE_WITH_ARGS.
With this change, fprobe events mostly use ftrace_regs instead of pt_regs.
Note that if the arch doesn't enable HAVE_PT_REGS_COMPAT_FTRACE_REGS,
fprobe events will not be able to be used from
From: Masami Hiramatsu (Google)
Add ftrace_fill_perf_regs() which should be compatible with the
perf_fetch_caller_regs(). In other words, the pt_regs returned from the
ftrace_fill_perf_regs() must satisfy 'user_mode(regs) == false' and can be
used for stack tracing.
Signed-off-by: Masami
From: Masami Hiramatsu (Google)
Add ftrace_partial_regs() which converts the ftrace_regs to pt_regs.
If the architecture defines its own ftrace_regs, this copies partial
registers to pt_regs and returns it. If not, ftrace_regs is the same as
pt_regs and ftrace_partial_regs() will return
From: Masami Hiramatsu (Google)
Change the fprobe exit handler to use ftrace_regs structure instead of
pt_regs. This also introduce HAVE_PT_REGS_TO_FTRACE_REGS_CAST which means
the ftrace_regs's memory layout is equal to the pt_regs so that those are
able to cast. Fprobe introduces a new
From: Masami Hiramatsu (Google)
This allows fprobes to be available with CONFIG_DYNAMIC_FTRACE_WITH_ARGS
instead of CONFIG_DYNAMIC_FTRACE_WITH_REGS, then we can enable fprobe
on arm64.
Signed-off-by: Masami Hiramatsu (Google)
Acked-by: Florent Revest
---
Changes in v6:
- Keep using
From: Masami Hiramatsu (Google)
Enable CONFIG_HAVE_FUNCTION_GRAPH_FREGS on arm64. Note that this
depends on HAVE_DYNAMIC_FTRACE_WITH_ARGS which is enabled if the
compiler supports "-fpatchable-function-entry=2". If not, it
continue to use ftrace_ret_regs.
Signed-off-by: Masami Hiramatsu
From: Masami Hiramatsu (Google)
Support HAVE_FUNCTION_GRAPH_FREGS on x86-64, which saves ftrace_regs
on the stack in ftrace_graph return trampoline so that the callbacks
can access registers via ftrace_regs APIs.
Note that this only recovers 'rax' and 'rdx' registers because other
registers are
From: Masami Hiramatsu (Google)
Add a new return handler to fgraph_ops as 'retregfunc' which takes
parent_ip and ftrace_regs instead of ftrace_graph_ret. This handler
is available only if the arch support CONFIG_HAVE_FUNCTION_GRAPH_FREGS.
Note that the 'retfunc' and 'reregfunc' are mutual
From: Masami Hiramatsu (Google)
Add a new entry handler to fgraph_ops as 'entryregfunc' which takes
parent_ip and ftrace_regs. Note that the 'entryfunc' and 'entryregfunc'
are mutual exclusive. You can set only one of them.
Signed-off-by: Masami Hiramatsu (Google)
---
Changes in v3:
-
From: Steven Rostedt (VMware)
Added functions that can be called by a fgraph_ops entryfunc and retfunc to
store state between the entry of the function being traced to the exit of
the same function. The fgraph_ops entryfunc() may call
fgraph_reserve_data() to store up to 32 words onto the task's
From: Steven Rostedt (VMware)
The use of the task->trace_recursion for the logic used for the function
graph no-trace was a bit of an abuse of that variable. Now that there
exists global vars that are per stack for registered graph traces, use
that instead.
Signed-off-by: Steven Rostedt
From: Steven Rostedt (VMware)
The use of the task->trace_recursion for the logic used for the function
graph depth was a bit of an abuse of that variable. Now that there
exists global vars that are per stack for registered graph traces, use that
instead.
Signed-off-by: Steven Rostedt (VMware)
From: Steven Rostedt (VMware)
The use of the task->trace_recursion for the logic used for the
set_graph_funnction was a bit of an abuse of that variable. Now that there
exists global vars that are per stack for registered graph traces, use that
instead.
Signed-off-by: Steven Rostedt (VMware)
From: Steven Rostedt (VMware)
Add a "task variables" array on the tasks shadow ret_stack that is the
size of longs for each possible registered fgraph_ops. That's a total
of 16, taking up 8 * 16 = 128 bytes (out of a page size 4k).
This will allow for fgraph_ops to do specific features on a per
From: Masami Hiramatsu (Google)
Since the fgraph_array index is used for the bitmap on the shadow
stack, it may leave some entries after a function_graph instance is
removed. Thus if another instance reuses the fgraph_array index soon
after releasing it, the fgraph may confuse to call the newer
From: Steven Rostedt (VMware)
Some of the flags for ftrace_startup() may be exposed even when
CONFIG_DYNAMIC_FTRACE is not configured in. This is fine as the difference
between dynamic ftrace and static ftrace is done within the internals of
ftrace itself. No need to have use cases fail to
From: Steven Rostedt (VMware)
Pass the fgraph_ops structure to the function graph callbacks. This will
allow callbacks to add a descriptor to a fgraph_ops private field that wil
be added in the future and use it for the callbacks. This will be useful
when more than one callback can be registered
From: Steven Rostedt (VMware)
Now that function graph tracing can handle more than one user, allow it to
be enabled in the ftrace instances. Note, the filtering of the functions is
still joined by the top level set_ftrace_filter and friends, as well as the
graph and nograph files.
From: Steven Rostedt (VMware)
The function pointers ftrace_graph_entry and ftrace_graph_return are no
longer called via the function_graph tracer. Instead, an array structure is
now used that will allow for multiple users of the function_graph
infrastructure. The variables are still used by the
From: Steven Rostedt (VMware)
Allow for multiple users to attach to function graph tracer at the same
time. Only 16 simultaneous users can attach to the tracer. This is because
there's an array that stores the pointers to the attached fgraph_ops. When
a function being traced is entered, each of
From: Steven Rostedt (VMware)
Add an array structure that will eventually allow the function graph tracer
to have up to 16 simultaneous callbacks attached. It's an array of 16
fgraph_ops pointers, that is assigned when one is registered. On entry of a
function the entry of the first item in the
From: Steven Rostedt (VMware)
Instead of using "ALIGN()", use BUILD_BUG_ON() as the structures should
always be divisible by sizeof(long).
Link:
http://lkml.kernel.org/r/2019052444.gi2...@hirez.programming.kicks-ass.net
Suggested-by: Peter Zijlstra
Signed-off-by: Steven Rostedt (VMware)
From: Steven Rostedt (VMware)
In order to make it possible to have multiple callbacks registered with the
function_graph tracer, the retstack needs to be converted from an array of
ftrace_ret_stack structures to an array of longs. This will allow to store
the list of callbacks on the stack for
From: Masami Hiramatsu (Google)
Add ftrace_regs definition for x86_64 in the ftrace header to
clarify what register will be accessible from ftrace_regs.
Signed-off-by: Masami Hiramatsu (Google)
---
Changes in v3:
- Add rip to be saved.
Changes in v2:
- Newly added.
---
From: Masami Hiramatsu (Google)
Rename ftrace_regs_return_value to ftrace_regs_get_return_value as same as
other ftrace_regs_get/set_* APIs.
Signed-off-by: Masami Hiramatsu (Google)
Acked-by: Mark Rutland
---
Changes in v6:
- Moved to top of the series.
Changes in v3:
- Newly added.
---
From: Masami Hiramatsu (Google)
To clarify what will be expected on ftrace_regs, add a comment to the
architecture independent definition of the ftrace_regs.
Signed-off-by: Masami Hiramatsu (Google)
Acked-by: Mark Rutland
---
Changes in v3:
- Add instruction pointer
Changes in v2:
-
From: Masami Hiramatsu (Google)
The commit 60c8971899f3 ("ftrace: Make DIRECT_CALLS work WITH_ARGS
and !WITH_REGS") changed DIRECT_CALLS to use SAVE_ARGS when there
are multiple ftrace_ops at the same function, but since the x86 only
support to jump to direct_call from ftrace_regs_caller, when
Hi,
Here is the 7th version of the series to re-implement the fprobe on
function-graph tracer. The previous version is;
https://lore.kernel.org/all/170505424954.459169.10630626365737237288.stgit@devnote2/
This version fixes max-limitation check[8/36] and interrupt while commiting
pop operation
If VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK is not negotiated, we expect
the driver to enable virtqueue before setting DRIVER_OK. If the driver
tries anyway, better to fail right away as soon as we get the ioctl.
Let's also update the documentation to make it clearer.
We had a problem in QEMU for
On 2/6/2024 10:02 AM, Krishna chaitanya chundru wrote:
This change adds ftrace support for following functions which
helps in debugging the issues when there is Channel state & MHI
state change and also when we receive data and control events:
Please write commit msg in imperative mood.
On Fri, 2024-02-02 at 08:53 -0800, Breno Leitao wrote:
> From: Jakub Kicinski
>
> softnet_data->time_squeeze is sometimes used as a proxy for
> host overload or indication of scheduling problems. In practice
> this statistic is very noisy and has hard to grasp units -
> e.g. is 10 squeezes a
clang is reporting:
$ make HOSTCC=clang CC=clang LLVM_IAS=1
clang -O -g -DVERSION=\"6.8.0-rc3\" -flto=auto -fexceptions
-fstack-protector-strong -fasynchronous-unwind-tables
-fstack-clash-protection -Wall -Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2
The following errors are showing up when compiling rv with clang:
$ make HOSTCC=clang CC=clang LLVM_IAS=1
[...]
clang -O -g -DVERSION=\"6.8.0-rc1\" -flto=auto -ffat-lto-objects
-fexceptions -fstack-protector-strong -fasynchronous-unwind-tables
-fstack-clash-protection -Wall
Clang is reporting:
$ make HOSTCC=clang CC=clang LLVM_IAS=1
[...]
clang -O -g -DVERSION=\"6.8.0-rc3\" -flto=auto -fexceptions
-fstack-protector-strong -fasynchronous-unwind-tables -fstack-clash-protection
-Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS
clang is reporting this warning:
$ make HOSTCC=clang CC=clang LLVM_IAS=1
[...]
clang -O -g -DVERSION=\"6.8.0-rc3\" -flto=auto -fexceptions
-fstack-protector-strong -fasynchronous-unwind-tables
-fstack-clash-protection -Wall -Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2
When compiling rtla with clang, I am getting the following warnings:
$ make HOSTCC=clang CC=clang LLVM_IAS=1
[..]
clang -O -g -DVERSION=\"6.8.0-rc3\" -flto=auto -fexceptions
-fstack-protector-strong -fasynchronous-unwind-tables
-fstack-clash-protection -Wall
The following errors are showing up when compiling rtla with clang:
$ make HOSTCC=clang CC=clang LLVM_IAS=1
[...]
clang -O -g -DVERSION=\"6.8.0-rc1\" -flto=auto -ffat-lto-objects
-fexceptions -fstack-protector-strong
-fasynchronous-unwind-tables -fstack-clash-protection
RHEL people reported some errors when compiling rtla and rv with
clang. The command line used to compile the tools is:
$ make HOSTCC=clang CC=clang LLVM_IAS=1
The first problem is two unsupported flags passed to the compiler:
-ffat-lto-objects and -Wno-maybe-uninitialized. They will be
removed
On Tue, 06 Feb 2024 09:48:16 +0100
Sven Schnelle wrote:
> I added some logging, and the test is not triggering this issue. So i
> assume the default of 128 cmdline entries is just to small. Sorry for
> the noise. Lets see whether we're still triggering some failures with
> the other fix applied
Hi Vincent,
kernel test robot noticed the following build warnings:
[auto build test WARNING on e2412e51fdea837b50ce31fea8e5dfc885237f3a]
url:
https://github.com/intel-lab-lkp/linux/commits/Vincent-Donnefort/ring-buffer-Zero-ring-buffer-sub-buffers/20240206-004413
base
On Sat, 2024-02-03 at 10:56 +0800, Liang Chen wrote:
> On Sat, Feb 3, 2024 at 12:20 AM Jesper Dangaard Brouer
> wrote:
> > On 02/02/2024 13.11, Liang Chen wrote:
[...]
> > > @@ -1033,6 +1039,16 @@ static void put_xdp_frags(struct xdp_buff *xdp)
> > > }
> > > }
> > >
> > > +static void
On 06/02/24 16:42, richard clark wrote:
> On Tue, Feb 6, 2024 at 12:05 AM Valentin Schneider
> wrote:
>>
>> The CPUS{} thingie only works with an event field that is either declared as
>> a
>> cpumask (__cpumask) or a scalar. That's not the case for ipi_raise, the
>> target_cpus event field is
__field(__le32, dword1)
> + __field(int, state)
> + __field(__le64, ptr)
> + __field(void *, rp)
> + ),
> +
> + TP_fast_assign(
> + __assign_str(name, mhi_cntrl->mhi_dev->name);
> + __entry->rp = rp;
> + __entry->ptr = rp->ptr;
> + __entry->dword0 = rp->dword[0];
> + __entry->dword1 = rp->dword[1];
> + __entry->state = MHI_TRE_GET_EV_STATE(rp);
> + ),
> +
> + TP_printk("%s: TRE: 0x%p TRE buf: 0x%llx DWORD0: 0x%08x DWORD1: 0x%08x
> State: %s\n",
> + __get_str(name), __entry->rp, __entry->ptr, __entry->dword0,
> + __entry->dword1, __print_symbolic(__entry->state,
> MHI_STATE_LIST))
> +);
> +
> +DEFINE_EVENT(mhi_process_event_ring, mhi_data_event,
> +
> + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_ring_element *rp),
> +
> + TP_ARGS(mhi_cntrl, rp)
> +);
> +
> +DEFINE_EVENT(mhi_process_event_ring, mhi_ctrl_event,
> +
> + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_ring_element *rp),
> +
> + TP_ARGS(mhi_cntrl, rp)
> +);
> +
> +DECLARE_EVENT_CLASS(mhi_update_channel_state,
> +
> + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
> int state,
> + const char *reason),
> +
> + TP_ARGS(mhi_cntrl, mhi_chan, state, reason),
> +
> + TP_STRUCT__entry(
> + __string(name, mhi_cntrl->mhi_dev->name)
> + __field(int, ch_num)
> + __field(int, state)
> + __field(const char *, reason)
> + ),
> +
> + TP_fast_assign(
> + __assign_str(name, mhi_cntrl->mhi_dev->name);
> + __entry->ch_num = mhi_chan->chan;
> + __entry->state = state;
> + __entry->reason = reason;
> + ),
> +
> + TP_printk("%s: chan%d: %s state to: %s\n",
> + __get_str(name), __entry->ch_num, __entry->reason,
> + __print_symbolic(__entry->state, MHI_CH_STATE_TYPE_LIST))
> +);
> +
> +DEFINE_EVENT(mhi_update_channel_state, mhi_channel_command_start,
> +
> + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
> int state,
> + const char *reason),
> +
> + TP_ARGS(mhi_cntrl, mhi_chan, state, reason)
> +);
> +
> +DEFINE_EVENT(mhi_update_channel_state, mhi_channel_command_end,
> +
> + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
> int state,
> + const char *reason),
> +
> + TP_ARGS(mhi_cntrl, mhi_chan, state, reason)
> +);
> +
> +TRACE_EVENT(mhi_pm_st_transition,
> +
> + TP_PROTO(struct mhi_controller *mhi_cntrl, int state),
> +
> + TP_ARGS(mhi_cntrl, state),
> +
> + TP_STRUCT__entry(
> + __string(name, mhi_cntrl->mhi_dev->name)
> + __field(int, state)
> + ),
> +
> + TP_fast_assign(
> + __assign_str(name, mhi_cntrl->mhi_dev->name);
> + __entry->state = state;
> + ),
> +
> + TP_printk("%s: Handling state transition: %s\n", __get_str(name),
> + __print_symbolic(__entry->state, DEV_ST_TRANSITION_LIST))
> +);
> +
> +#endif
> +#undef TRACE_INCLUDE_PATH
> +#define TRACE_INCLUDE_PATH ../../drivers/bus/mhi/host
> +#undef TRACE_INCLUDE_FILE
> +#define TRACE_INCLUDE_FILE trace
> +
> +#include
>
> ---
> base-commit: ae1d892d518af5c092f2b1f8e6921996c6a95cb3
> change-id: 20240206-ftrace_support-8ef0fbecf85e
>
> Best regards,
> --
> Krishna chaitanya chundru
>
--
மணிவண்ணன் சதாசிவம்
ntrl, mhi_chan, mhi_tre),
> > > > +
> > > > + TP_STRUCT__entry(
> > > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > > + __field(int, ch_num)
> > > > + __field(void *, wp)
> > > > + __field(__le64, tre_ptr)
> > > > + __field(__le32, dword0)
> > > > + __field(__le32, dword1)
> > > > + ),
> > > > +
> > > > + TP_fast_assign(
> > > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > > + __entry->ch_num = mhi_chan->chan;
> > > > + __entry->wp = mhi_tre;
> > > > + __entry->tre_ptr = mhi_tre->ptr;
> > > > + __entry->dword0 = mhi_tre->dword[0];
> > > > + __entry->dword1 = mhi_tre->dword[1];
> > > > + ),
> > > > +
> > > > + TP_printk("%s: Chan: %d TRE: 0x%p TRE buf: 0x%llx DWORD0:
> > > > 0x%08x DWORD1: 0x%08x\n",
> > > > + __get_str(name), __entry->ch_num, __entry->wp,
> > > > __entry->tre_ptr,
> > > > + __entry->dword0, __entry->dword1)
> > > > +);
> > > > +
> > > > +TRACE_EVENT(mhi_intvec_states,
> > > > +
> > > > + TP_PROTO(struct mhi_controller *mhi_cntrl, int dev_ee, int
> > > > dev_state),
> > > > +
> > > > + TP_ARGS(mhi_cntrl, dev_ee, dev_state),
> > > > +
> > > > + TP_STRUCT__entry(
> > > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > > + __field(int, local_ee)
> > > > + __field(int, state)
> > > > + __field(int, dev_ee)
> > > > + __field(int, dev_state)
> > > > + ),
> > > > +
> > > > + TP_fast_assign(
> > > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > > + __entry->local_ee = mhi_cntrl->ee;
> > > > + __entry->state = mhi_cntrl->dev_state;
> > > > + __entry->dev_ee = dev_ee;
> > > > + __entry->dev_state = dev_state;
> > > > + ),
> > > > +
> > > > + TP_printk("%s: Local EE: %s State: %s Device EE: %s Dev State:
> > > > %s\n",
> > > > + __get_str(name),
> > > > + __print_symbolic(__entry->local_ee, MHI_EE_LIST),
> > > > + __print_symbolic(__entry->state, MHI_STATE_LIST),
> > > > + __print_symbolic(__entry->dev_ee, MHI_EE_LIST),
> > > > + __print_symbolic(__entry->dev_state, MHI_STATE_LIST))
> > > > +);
> > > > +
> > > > +TRACE_EVENT(mhi_tryset_pm_state,
> > > > +
> > > > + TP_PROTO(struct mhi_controller *mhi_cntrl, int pm_state),
> > > > +
> > > > + TP_ARGS(mhi_cntrl, pm_state),
> > > > +
> > > > + TP_STRUCT__entry(
> > > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > > + __field(int, pm_state)
> > > > + ),
> > > > +
> > > > + TP_fast_assign(
> > > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > > + if (pm_state)
> > > > + pm_state = __fls(pm_state);
> > > > + __entry->pm_state = pm_state;
> > > > + ),
> > > > +
> > > > + TP_printk("%s: PM state: %s\n", __get_str(name),
> > > > + __print_symbolic(__entry->pm_state,
> > > > MHI_PM_STATE_LIST))
> > > > +);
> > > > +
> > > > +DECLARE_EVENT_CLASS(mhi_process_event_ring,
> > > > +
> > > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct
> > > > mhi_ring_element *rp),
> > > > +
> > > > + TP_ARGS(mhi_cntrl, rp),
> > > > +
> > > > + TP_STRUCT__entry(
> > > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > > + __field(__le32, dword0)
> > > > + __field(__le32, dword1)
> > > > + __field(int, state)
> > > > + __field(__le64, ptr)
> > > > + __field(void *, rp)
> > > > + ),
> > > > +
> > > > + TP_fast_assign(
> > > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > > + __entry->rp = rp;
> > > > + __entry->ptr = rp->ptr;
> > > > + __entry->dword0 = rp->dword[0];
> > > > + __entry->dword1 = rp->dword[1];
> > > > + __entry->state = MHI_TRE_GET_EV_STATE(rp);
> > > > + ),
> > > > +
> > > > + TP_printk("%s: TRE: 0x%p TRE buf: 0x%llx DWORD0: 0x%08x DWORD1:
> > > > 0x%08x State: %s\n",
> > > > + __get_str(name), __entry->rp, __entry->ptr,
> > > > __entry->dword0,
> > > > + __entry->dword1, __print_symbolic(__entry->state,
> > > > MHI_STATE_LIST))
> > > > +);
> > > > +
> > > > +DEFINE_EVENT(mhi_process_event_ring, mhi_data_event,
> > > > +
> > > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct
> > > > mhi_ring_element *rp),
> > > > +
> > > > + TP_ARGS(mhi_cntrl, rp)
> > > > +);
> > > > +
> > > > +DEFINE_EVENT(mhi_process_event_ring, mhi_ctrl_event,
> > > > +
> > > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct
> > > > mhi_ring_element *rp),
> > > > +
> > > > + TP_ARGS(mhi_cntrl, rp)
> > > > +);
> > > > +
> > > > +DECLARE_EVENT_CLASS(mhi_update_channel_state,
> > > > +
> > > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan
> > > > *mhi_chan, int state,
> > > > +const char *reason),
> > > > +
> > > > + TP_ARGS(mhi_cntrl, mhi_chan, state, reason),
> > > > +
> > > > + TP_STRUCT__entry(
> > > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > > + __field(int, ch_num)
> > > > + __field(int, state)
> > > > + __field(const char *, reason)
> > > > + ),
> > > > +
> > > > + TP_fast_assign(
> > > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > > + __entry->ch_num = mhi_chan->chan;
> > > > + __entry->state = state;
> > > > + __entry->reason = reason;
> > > > + ),
> > > > +
> > > > + TP_printk("%s: chan%d: %s state to: %s\n",
> > > > + __get_str(name), __entry->ch_num, __entry->reason,
> > > > + __print_symbolic(__entry->state,
> > > > MHI_CH_STATE_TYPE_LIST))
> > > > +);
> > > > +
> > > > +DEFINE_EVENT(mhi_update_channel_state, mhi_channel_command_start,
> > > > +
> > > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan
> > > > *mhi_chan, int state,
> > > > +const char *reason),
> > > > +
> > > > + TP_ARGS(mhi_cntrl, mhi_chan, state, reason)
> > > > +);
> > > > +
> > > > +DEFINE_EVENT(mhi_update_channel_state, mhi_channel_command_end,
> > > > +
> > > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan
> > > > *mhi_chan, int state,
> > > > +const char *reason),
> > > > +
> > > > + TP_ARGS(mhi_cntrl, mhi_chan, state, reason)
> > > > +);
> > > > +
> > > > +TRACE_EVENT(mhi_pm_st_transition,
> > > > +
> > > > + TP_PROTO(struct mhi_controller *mhi_cntrl, int state),
> > > > +
> > > > + TP_ARGS(mhi_cntrl, state),
> > > > +
> > > > + TP_STRUCT__entry(
> > > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > > + __field(int, state)
> > > > + ),
> > > > +
> > > > + TP_fast_assign(
> > > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > > + __entry->state = state;
> > > > + ),
> > > > +
> > > > + TP_printk("%s: Handling state transition: %s\n",
> > > > __get_str(name),
> > > > + __print_symbolic(__entry->state,
> > > > DEV_ST_TRANSITION_LIST))
> > > > +);
> > > > +
> > > > +#endif
> > > > +#undef TRACE_INCLUDE_PATH
> > > > +#define TRACE_INCLUDE_PATH ../../drivers/bus/mhi/host
> > > > +#undef TRACE_INCLUDE_FILE
> > > > +#define TRACE_INCLUDE_FILE trace
> > > > +
> > > > +#include
> > > >
> > > > ---
> > > > base-commit: ae1d892d518af5c092f2b1f8e6921996c6a95cb3
> > > > change-id: 20240206-ftrace_support-8ef0fbecf85e
> > > >
> > > > Best regards,
> > > > --
> > > > Krishna chaitanya chundru
> > > >
> > >
>
> --
> மணிவண்ணன் சதாசிவம்
>
--
மணிவண்ணன் சதாசிவம்
_chan->chan;
> > > + __entry->wp = mhi_tre;
> > > + __entry->tre_ptr = mhi_tre->ptr;
> > > + __entry->dword0 = mhi_tre->dword[0];
> > > + __entry->dword1 = mhi_tre->dword[1];
> > > + ),
> > > +
> > > + TP_printk("%s: Chan: %d TRE: 0x%p TRE buf: 0x%llx DWORD0: 0x%08x
> > > DWORD1: 0x%08x\n",
> > > + __get_str(name), __entry->ch_num, __entry->wp,
> > > __entry->tre_ptr,
> > > + __entry->dword0, __entry->dword1)
> > > +);
> > > +
> > > +TRACE_EVENT(mhi_intvec_states,
> > > +
> > > + TP_PROTO(struct mhi_controller *mhi_cntrl, int dev_ee, int dev_state),
> > > +
> > > + TP_ARGS(mhi_cntrl, dev_ee, dev_state),
> > > +
> > > + TP_STRUCT__entry(
> > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > + __field(int, local_ee)
> > > + __field(int, state)
> > > + __field(int, dev_ee)
> > > + __field(int, dev_state)
> > > + ),
> > > +
> > > + TP_fast_assign(
> > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > + __entry->local_ee = mhi_cntrl->ee;
> > > + __entry->state = mhi_cntrl->dev_state;
> > > + __entry->dev_ee = dev_ee;
> > > + __entry->dev_state = dev_state;
> > > + ),
> > > +
> > > + TP_printk("%s: Local EE: %s State: %s Device EE: %s Dev State: %s\n",
> > > + __get_str(name),
> > > + __print_symbolic(__entry->local_ee, MHI_EE_LIST),
> > > + __print_symbolic(__entry->state, MHI_STATE_LIST),
> > > + __print_symbolic(__entry->dev_ee, MHI_EE_LIST),
> > > + __print_symbolic(__entry->dev_state, MHI_STATE_LIST))
> > > +);
> > > +
> > > +TRACE_EVENT(mhi_tryset_pm_state,
> > > +
> > > + TP_PROTO(struct mhi_controller *mhi_cntrl, int pm_state),
> > > +
> > > + TP_ARGS(mhi_cntrl, pm_state),
> > > +
> > > + TP_STRUCT__entry(
> > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > + __field(int, pm_state)
> > > + ),
> > > +
> > > + TP_fast_assign(
> > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > + if (pm_state)
> > > + pm_state = __fls(pm_state);
> > > + __entry->pm_state = pm_state;
> > > + ),
> > > +
> > > + TP_printk("%s: PM state: %s\n", __get_str(name),
> > > + __print_symbolic(__entry->pm_state, MHI_PM_STATE_LIST))
> > > +);
> > > +
> > > +DECLARE_EVENT_CLASS(mhi_process_event_ring,
> > > +
> > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_ring_element *rp),
> > > +
> > > + TP_ARGS(mhi_cntrl, rp),
> > > +
> > > + TP_STRUCT__entry(
> > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > + __field(__le32, dword0)
> > > + __field(__le32, dword1)
> > > + __field(int, state)
> > > + __field(__le64, ptr)
> > > + __field(void *, rp)
> > > + ),
> > > +
> > > + TP_fast_assign(
> > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > + __entry->rp = rp;
> > > + __entry->ptr = rp->ptr;
> > > + __entry->dword0 = rp->dword[0];
> > > + __entry->dword1 = rp->dword[1];
> > > + __entry->state = MHI_TRE_GET_EV_STATE(rp);
> > > + ),
> > > +
> > > + TP_printk("%s: TRE: 0x%p TRE buf: 0x%llx DWORD0: 0x%08x DWORD1: 0x%08x
> > > State: %s\n",
> > > + __get_str(name), __entry->rp, __entry->ptr, __entry->dword0,
> > > + __entry->dword1, __print_symbolic(__entry->state,
> > > MHI_STATE_LIST))
> > > +);
> > > +
> > > +DEFINE_EVENT(mhi_process_event_ring, mhi_data_event,
> > > +
> > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_ring_element *rp),
> > > +
> > > + TP_ARGS(mhi_cntrl, rp)
> > > +);
> > > +
> > > +DEFINE_EVENT(mhi_process_event_ring, mhi_ctrl_event,
> > > +
> > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_ring_element *rp),
> > > +
> > > + TP_ARGS(mhi_cntrl, rp)
> > > +);
> > > +
> > > +DECLARE_EVENT_CLASS(mhi_update_channel_state,
> > > +
> > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
> > > int state,
> > > + const char *reason),
> > > +
> > > + TP_ARGS(mhi_cntrl, mhi_chan, state, reason),
> > > +
> > > + TP_STRUCT__entry(
> > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > + __field(int, ch_num)
> > > + __field(int, state)
> > > + __field(const char *, reason)
> > > + ),
> > > +
> > > + TP_fast_assign(
> > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > + __entry->ch_num = mhi_chan->chan;
> > > + __entry->state = state;
> > > + __entry->reason = reason;
> > > + ),
> > > +
> > > + TP_printk("%s: chan%d: %s state to: %s\n",
> > > + __get_str(name), __entry->ch_num, __entry->reason,
> > > + __print_symbolic(__entry->state, MHI_CH_STATE_TYPE_LIST))
> > > +);
> > > +
> > > +DEFINE_EVENT(mhi_update_channel_state, mhi_channel_command_start,
> > > +
> > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
> > > int state,
> > > + const char *reason),
> > > +
> > > + TP_ARGS(mhi_cntrl, mhi_chan, state, reason)
> > > +);
> > > +
> > > +DEFINE_EVENT(mhi_update_channel_state, mhi_channel_command_end,
> > > +
> > > + TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
> > > int state,
> > > + const char *reason),
> > > +
> > > + TP_ARGS(mhi_cntrl, mhi_chan, state, reason)
> > > +);
> > > +
> > > +TRACE_EVENT(mhi_pm_st_transition,
> > > +
> > > + TP_PROTO(struct mhi_controller *mhi_cntrl, int state),
> > > +
> > > + TP_ARGS(mhi_cntrl, state),
> > > +
> > > + TP_STRUCT__entry(
> > > + __string(name, mhi_cntrl->mhi_dev->name)
> > > + __field(int, state)
> > > + ),
> > > +
> > > + TP_fast_assign(
> > > + __assign_str(name, mhi_cntrl->mhi_dev->name);
> > > + __entry->state = state;
> > > + ),
> > > +
> > > + TP_printk("%s: Handling state transition: %s\n", __get_str(name),
> > > + __print_symbolic(__entry->state, DEV_ST_TRANSITION_LIST))
> > > +);
> > > +
> > > +#endif
> > > +#undef TRACE_INCLUDE_PATH
> > > +#define TRACE_INCLUDE_PATH ../../drivers/bus/mhi/host
> > > +#undef TRACE_INCLUDE_FILE
> > > +#define TRACE_INCLUDE_FILE trace
> > > +
> > > +#include
> > >
> > > ---
> > > base-commit: ae1d892d518af5c092f2b1f8e6921996c6a95cb3
> > > change-id: 20240206-ftrace_support-8ef0fbecf85e
> > >
> > > Best regards,
> > > --
> > > Krishna chaitanya chundru
> > >
> >
--
மணிவண்ணன் சதாசிவம்
Sven Schnelle writes:
> Looking at trace_save_cmdline():
>
> tpid = tsk->pid & (PID_MAX_DEFAULT - 1); where PID_MAX_DEFAULT = 0x8000
>
> so this is basically
>
> tpid = tsk->pid & 0x7fff;
>
> further on:
>
> // might clash with other pid if (otherpid & 0x7fff) == (tsk->pid &
> 0x7fff)
>
On Tue, Feb 6, 2024 at 12:05 AM Valentin Schneider wrote:
>
> On 05/02/24 14:39, Mark Rutland wrote:
> > [adding Valentin]
> >
>
> Thanks!
>
> > On Mon, Feb 05, 2024 at 08:06:09AM -0500, Steven Rostedt wrote:
> >> On Mon, 5 Feb 2024 10:28:57 +
> >> Mark Rutland wrote:
> >>
> >> > > I try to
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