Hi,
On Thu, May 16, 2019 at 6:53 PM Rob Clark wrote:
>
> From: Rob Clark
>
> This is essentialy a squash of a bunch of history of cheza dt updates
> from chromium kernel, some of which were themselves squashes of history
> from older chromium kernels.
>
> I don't claim any credit other than
The pull request you sent on Fri, 17 May 2019 08:58:54 +0200:
> git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux tags/s390-5.2-2
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/80111bfb672d8c04d60c25559243554f732f2848
Thank you!
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The pull request you sent on Fri, 17 May 2019 04:11:26 +0100:
> git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git fixes
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/bf8a9a4755737f6630756f0d87bea9b38f0ed369
Thank you!
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The pull request you sent on Fri, 17 May 2019 05:59:36 +0200:
> https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/c011d23ba046826ccf8c4a4a6c1d01c9ccaa1403
Thank you!
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On Fri, May 17, 2019 at 8:55 AM Dmitry Vyukov wrote:
>
> On Fri, May 17, 2019 at 5:51 PM Dmitry Vyukov wrote:
> > > > >
> > > > > From: Dmitry Vyukov
> > > > > Date: Fri, May 17, 2019 at 3:26 AM
> > > > > To: Greg Kroah-Hartman, Arve Hjønnevåg, Todd Kjos, Martijn Coenen,
> > > > > Joel
On Fri, May 17, 2019 at 11:21 AM Sean Christopherson
wrote:
>
> I agree that conceptually EPC is private memory, but because EPC is
> managed as a separate memory pool, SGX tags it VM_PFNMAP and manually
> inserts PFNs, i.e. EPC effectively it gets classified as IO memory.
>
> And
+Alexei, Daniel, and bpf
> On May 17, 2019, at 2:10 AM, Peter Zijlstra wrote:
>
> On Fri, May 17, 2019 at 04:15:39PM +0800, Kairui Song wrote:
>> Hi, I think the actual problem is that bpf_get_stackid_tp (and maybe
>> some other bfp functions) is now broken, or, strating an unwind
>> directly
On 5/17/19 1:33 PM, Arnd Bergmann wrote:
> On Fri, May 17, 2019 at 8:08 PM Alex Elder wrote:
>>
>> On 5/15/19 2:34 AM, Arnd Bergmann wrote:
+static void gsi_trans_tre_fill(struct gsi_tre *dest_tre, dma_addr_t addr,
+ u32 len, bool last_tre, bool bei,
+
Hi Steven,
On Fri, May 17, 2019 at 6:47 PM Steven Rostedt wrote:
>
> Hi Miguel,
>
> Linus mentioned this too.
>
>
> https://lore.kernel.org/lkml/CAHk-=wihyb8w__yqjgyjyzsvniu5ctktcfycmcgdqvg8guj...@mail.gmail.com/T/#u
Ah, I didn't see that. We were discussing here [1] backporting to 4.19
some
Miroslav reported that the livepatch self-tests were failing,
specifically a case in which the consistency model ensures that we do
not patch a current executing function, "TEST: busy target module".
Recent renovations to stack_trace_save_tsk_reliable() left it returning
only an -ERRNO success
On Fri, May 17, 2019 at 11:33:30AM -0700, Linus Torvalds wrote:
> On Fri, May 17, 2019 at 11:21 AM Sean Christopherson
> wrote:
> >
> > I agree that conceptually EPC is private memory, but because EPC is
> > managed as a separate memory pool, SGX tags it VM_PFNMAP and manually
> > inserts PFNs,
> On May 17, 2019, at 11:21 AM, Sean Christopherson
> wrote:
>
>> On Fri, May 17, 2019 at 11:04:22AM -0700, Linus Torvalds wrote:
>> On Fri, May 17, 2019 at 10:55 AM Sean Christopherson
>> wrote:
>>>
>>> In this snippet, IS_PRIVATE() is true for anon inodes, false for
>>> /dev/sgx/enclave.
On Fri, May 17, 2019 at 11:23:36PM +0530, Vidya Sagar wrote:
> On 5/17/2019 6:54 PM, Bjorn Helgaas wrote:
> > Do you have "lspci -vvxxx" output for the root ports handy?
> >
> > If there's some clue in the standard config space that would tell us
> > that MSI works for some events but not others,
On Fri, May 17, 2019 at 02:51:17PM -0400, Joe Lawrence wrote:
> Miroslav reported that the livepatch self-tests were failing,
> specifically a case in which the consistency model ensures that we do
> not patch a current executing function, "TEST: busy target module".
>
> Recent renovations to
On 5/17/19 10:39 AM, Paul Walmsley wrote:
On Wed, 1 May 2019, Atish Patra wrote:
Currently, last stage boot loaders such as U-Boot can accept only
uImage which is an unnecessary additional step in automating boot flows.
Add a PE/COFF compliant image header that boot loaders can parse and
Since ftrace_replace_code() is a __weak function and can be overridden,
we need to expose the flags that can be set. So, move the flags enum to
the header file.
Signed-off-by: Naveen N. Rao
---
include/linux/ftrace.h | 5 +
kernel/trace/ftrace.c | 5 -
2 files changed, 5 insertions(+),
In commit a0572f687fb3c ("ftrace: Allow ftrace_replace_code() to be
schedulable), the generic ftrace_replace_code() function was modified to
accept a flags argument in place of a single 'enable' flag. However, the
x86 version of this function was not updated. Fix the same.
Fixes: a0572f687fb3c
On powerpc64, -mprofile-kernel results in two instructions being
emitted: 'mflr r0' and 'bl _mcount'. So far, we were only nop'ing out
the branch to _mcount(). This series implements an approach to also nop
out the preceding mflr.
Patches 1-3 are generic changes. Patch 2 is a fix for x86, but
While over-riding ftrace_replace_code(), we still want to reuse the
existing __ftrace_replace_code() function. Rename the function and
make it available for other kernel code.
Signed-off-by: Naveen N. Rao
---
include/linux/ftrace.h | 1 +
kernel/trace/ftrace.c | 8
2 files changed, 5
With -mprofile-kernel, gcc emits 'mflr r0', followed by 'bl _mcount' to
enable function tracing and profiling. So far, with dynamic ftrace, we
used to only patch out the branch to _mcount(). However, Nick Piggin
points out that "mflr is executed by the branch unit that can only
execute one per
On Fri, May 17, 2019 at 7:59 PM Linus Torvalds
wrote:
>
> On Fri, May 17, 2019 at 2:25 AM Miguel Ojeda
> wrote:
> >
> > + memset((char *)(iter) + offsetof(struct trace_iterator, seq), 0,
> > + sizeof(struct trace_iterator) -
> > + offsetof(struct trace_iterator,
On Fri, May 17, 2019 at 02:51:17PM -0400, Joe Lawrence wrote:
> Miroslav reported that the livepatch self-tests were failing,
> specifically a case in which the consistency model ensures that we do
> not patch a current executing function, "TEST: busy target module".
>
> Recent renovations to
On 5/3/2019 6:17 PM, Bjorn Andersson wrote:
Failing to toggle a GDSC as the driver core is attaching the
power-domain to a device will cause a silent probe deferral. Provide an
explicit warning to the developer, in order to reduce the amount of time
it take to debug this.
Signed-off-by: Bjorn
You're working very quickly, and sloppily.
I reverted the v1 of this patch from my tree.
And I'm going to wait some time before applying this one, it needs review.
On 5/17/19 2:05 PM, Stephen Smalley wrote:
On 5/17/19 1:12 PM, Andy Lutomirski wrote:
On May 17, 2019, at 9:37 AM, Stephen Smalley wrote:
On 5/17/19 12:20 PM, Stephen Smalley wrote:
On 5/17/19 11:09 AM, Sean Christopherson wrote:
On Fri, May 17, 2019 at 09:53:06AM -0400, Stephen Smalley
On Sun, May 12, 2019 at 6:39 AM Maxime Ripard wrote:
>
> Hi,
>
> Thanks a lot for working on this!
>
> On Sun, May 12, 2019 at 04:26:13AM -0400, Yangtao Li wrote:
> > This patch adds the support for allwinner thermal sensor, within
> > allwinner SoC. It will register sensors for thermal framework
On Monday, May 13, 2019 3:28:30 PM CEST Oliver Neukum wrote:
> On Mo, 2019-05-13 at 03:23 -0700, syzbot wrote:
> > syzbot has found a reproducer for the following crash on:
> >
> > HEAD commit:43151d6c usb-fuzzer: main usb gadget fuzzer driver
> > git tree:
On Fri, May 17, 2019 at 10:28:48AM -0700, Dan Williams wrote:
> On Fri, May 17, 2019 at 8:57 AM Kees Cook wrote:
> >
> > On Fri, May 17, 2019 at 08:08:27AM -0700, Dan Williams wrote:
> > > As far as I can see it's mostly check_heap_object() that is the
> > > problem, so I'm open to finding a way
Good Day,
I am establishing contact in respect to administration of financial resources
as your qualities match our preferred personality based on your profile from
linkedin, you would be responsible for our financial representation by
receiving and disbursing financial resources within the
On Fri, May 17, 2019 at 02:05:39PM -0400, Stephen Smalley wrote:
> On 5/17/19 1:12 PM, Andy Lutomirski wrote:
> >
> >How can that work? Unless the API changes fairly radically, users
> >fundamentally need to both write and execute the enclave. Some of it will
> >be written only from already
On Fri, May 17, 2019 at 11:06:07AM -0700, Luck, Tony wrote:
> and thus end up with that extra level on indent for the rest
> of the function.
Ok:
---
diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 5bcecadcf4d9..25e501a853cd 100644
---
From: Jin Yao
The hist__account_cycles() function is executed when the
hist_iter__branch_callback() is called.
But it looks it's not necessary. In hist__account_cycles, it already
walks on all branch entries.
This patch moves the hist__account_cycles out of callback, now the data
processing
From: Colin Ian King
There are a couple of spelling mistakes in test assert messages. Fix them.
Signed-off-by: Colin King
Reviewed-by: Mukesh Ojha
Cc: Alexander Shishkin
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Peter Zijlstra
Cc: kernel-janit...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Install directories of header and library files are hard coded in
pkg-config template file.
They must be configurable, the Makefile should set them on the
compilation / install stage.
Signed-off-by: Tzvetomir Stoyanov
Cc: Jiri Olsa
Link:
From: Mao Han
This patch add support for DWARF register mappings and libdw registers
initialization, which is used by perf callchain analyzing when
--call-graph=dwarf is given.
Here is the elfutils csky backend patch set:
https://sourceware.org/ml/elfutils-devel/2019-q2/msg7.html
From: Jiri Olsa
When compiled with libunwind, perf does some preparatory work when
processing side-band events. This is not needed when report actually
don't unwind dwarf callchains, so it's disabled with
dwarf_callchain_users bool.
However we could move that check to higher level and shield
commit 6b89d4c1ae8596a8c9240f169ef108704de373f2:
perf/x86/intel: Fix INTEL_FLAGS_EVENT_CONSTRAINT* masking (2019-05-10
08:04:17 +0200)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git
tags/perf-core-for-mingo-5.2-20190517
for you to fetch
From: Arnaldo Carvalho de Melo
To bring in the change made in this cset:
b69656fa7ea2 ("x86/uaccess: Fix up the fixup")
Silencing this perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from
latest version at 'arch/x86/lib/memcpy_64.S'
diff -u
From: Arnaldo Carvalho de Melo
To get the changes in:
878068ea270e ("perf/x86: Support outputting XMM registers")
That will be used in a followup patch to allow users to ask for some or
all of those registers to be collected in certain contatexts.
This silences the following perf build
From: Arnaldo Carvalho de Melo
$ perf record -h -I
Usage: perf record [] []
or: perf record [] -- []
-I, --intr-regs[=]
sample selected machine registers on interrupt, use
-I ? to list register names
$ m
$ perf record -I ?
Workload failed:
From: Adrian Hunter
As preparation for adding support for copying to clipboard, keep track of
what level each item is in tree items.
Signed-off-by: Adrian Hunter
Cc: Jiri Olsa
Link: http://lkml.kernel.org/r/20190503120828.25326-4-adrian.hun...@intel.com
Signed-off-by: Arnaldo Carvalho de Melo
From: Arnaldo Carvalho de Melo
To get the changes in:
59073aaf6de0 ("kvm: x86: Add exception payload fields to kvm_vcpu_events")
This silences the following perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs
from latest version at
From: Andi Kleen
Icelake and later platforms support collecting XMM registers with PEBS
event.
Add support for 'perf script' to dump them, and support for the register
parser in 'perf record -I=' ... to configure them.
For now they are just printed in hex, we could potentially later add
other
From: Adrian Hunter
As preparation for adding support for copying to clipboard, create view
in TreeWindowBase instead of derived classes.
Committer testing:
Tested using an old .db used to test some older patches:
$ python ~acme/libexec/perf-core/scripts/python/exported-sql-viewer.py
From: Arnaldo Carvalho de Melo
When running 'make -C tools clean' I noticed that a revision controlled
file was being deleted:
$ git diff
diff --git a/tools/pci/pcitest.sh b/tools/pci/pcitest.sh
deleted file mode 100644
index 75ed48ff2990..
--- a/tools/pci/pcitest.sh
+++
From: Arnaldo Carvalho de Melo
Add quotes around the register name and suggest using 'perf record -I?'
to get the list of available registers.
Before:
# perf record -Idi,xmm20,xmm1
Warning:
unknown register xmm20, check man page
Usage: perf record [] []
or: perf record [] --
From: Adrian Hunter
Add a context menu (right-click) that provides options for copying to
clipboard, including, for trees, the ability to copy only the cell under
the mouse pointer.
Committer testing:
$ python ~acme/libexec/perf-core/scripts/python/exported-sql-viewer.py
From: Kan Liang
Perf cannot parse UPI (Intel's "Ultra Path Interconnect" [1]) events.
# perf stat -e UPI_DATA_BANDWIDTH_TX
event syntax error: 'UPI_DATA_BANDWIDTH_TX'
\___ parser error
Run 'perf list' for a list of valid events
The JSON lists call the box UPI
From: Adrian Hunter
With support for Python 2 or 3 and PySide 1 or 2 (Qt 4 or 5), it is
useful to see what versions are in use. Add an 'About' dialog box that
displays Python, PySide, Qt and database server (SQLite or PostgreSQL)
version numbers.
Committer testing:
$ python
From: Donald Yandt
If fgets() fails due to any other error besides end-of-file, the version
char array may not even be null-terminated.
Signed-off-by: Donald Yandt
Cc: Alexander Shishkin
Cc: Avi Kivity
Cc: Jiri Olsa
Cc: Peter Zijlstra
Cc: Yanmin Zhang
Fixes: a1645ce12adb ("perf: 'perf
From: Adrian Hunter
Add support for copying to clipboard. Two menu options are added to copy the
selected rows / columns with normal spacing, or as comma-separated-values.
In the case of trees, only entire rows can be copied.
Comitter testing:
$ python
From: Adrian Hunter
Fix the following error if shrink / enlarge font is used with the help
window.
Traceback (most recent call last):
File "tools/perf/scripts/python/exported-sql-viewer.py", line 2791, in
ShrinkFont
ShrinkFont(win.view)
AttributeError: 'HelpWindow' object has no
From: Tzvetomir Stoyanov
Added support for man pages with multiple names, used to combine the
description of several APIs into one page.
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Added 4 new man pages, describing libtraceevent APIs:
tep_register_comm(),
tep_override_comm(),
tep_is_pid_registered(),
tep_data_comm_from_pid(),
tep_data_pid_from_comm(),
tep_cmdline_pid(),
tep_alloc(),
tep_free(),
tep_get_long_size(),
From: Tzvetomir Stoyanov
Initial support for libtraceevent man pages - Documentation directory,
templates, configurations, Makefiles.
The first man page is also part of the patch - summary of the library
and all its APIs.
Building of the documentation is integrated into the libtraceevent build
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_get_cpus(),
tep_set_cpus()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create a man page for libtraceevent APIs:
tep_get_header_page_size(),
tep_get_header_timestamp_size(),
tep_is_old_format()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man page for tep_strerror() libtraceevent API.
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Added new man pages, describing function related libtraceevent APIs:
tep_register_function(),
tep_register_print_string(),
tep_find_function(),
tep_find_function_address(),
tep_set_function_resolver(),
tep_reset_function_resolver()
Signed-off-by: Tzvetomir
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_register_event_handler()
tep_unregister_event_handler()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_get_page_size()
tep_set_page_size()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_is_bigendian(),
tep_is_local_bigendian(),
tep_set_local_bigendian()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_is_file_bigendian(),
tep_set_file_bigendian()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man page for libtraceevent APIs:
tep_list_events()
tep_list_events_copy()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_find_event()
tep_find_event_by_name()
tep_find_event_by_record()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_get_event(),
tep_get_first_event(),
tep_get_events_count()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_find_common_field(),
tep_find_field()
tep_find_any_field()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_register_print_function()
tep_unregister_print_function()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man page for tep_read_number() libtraceevent API.
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_get_any_field_val(),
tep_get_common_field_val(),
tep_get_field_val(),
tep_get_field_raw()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_event_common_fields(),
tep_event_fields()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_print_field(),
tep_print_fields(),
tep_print_num_field(),
tep_print_func_field()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man page for libtraceevent API tep_read_number_field().
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Added new man pages, describing libtraceevent event filter APIs:
tep_filter_alloc()
tep_filter_free()
tep_filter_reset()
tep_filter_add_filter_str()
tep_filter_strerror()
tep_event_filtered()
tep_filter_remove_event()
tep_filter_match()
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_parse_event(),
tep_parse_format()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man pages for libtraceevent APIs:
tep_data_type(),
tep_data_pid(),
tep_data_preempt_count(),
tep_data_flags()
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Tzvetomir Stoyanov
Create man page for tep_parse_header_page() libtraceevent API.
Signed-off-by: Tzvetomir Stoyanov
Cc: Andrew Morton
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: linux-trace-de...@vger.kernel.org
Link:
From: Alexey Budankov
Implemented PERF_RECORD_COMPRESSED event, related data types, header
feature and functions to write, read and print feature attributes from
the trace header section.
comp_mmap_len preserves the size of mmaped kernel buffer that was used
during collection. comp_mmap_len
From: Tzvetomir Stoyanov
Create man pages for trace sequences libtraceevent APIs:
trace_seq_init(),
trace_seq_destroy(),
trace_seq_reset(),
trace_seq_terminate(),
trace_seq_putc(),
trace_seq_puts(),
trace_seq_printf(),
trace_seq_vprintf(),
trace_seq_do_fprintf(),
From: Arnaldo Carvalho de Melo
So that we can test the ifdef parts for this feature.
Cc: Adrian Hunter
Cc: Alexander Shishkin
Cc: Alexey Budankov
Cc: Andi Kleen
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Peter Zijlstra
Link: https://lkml.kernel.org/n/tip-7o65mfl10wlvm8v3f0omb...@git.kernel.org
From: Alexey Budankov
Define 'bytes_transferred' and 'bytes_compressed' metrics to calculate
ratio in the end of the data collection:
compression ratio = bytes_transferred / bytes_compressed
The 'bytes_transferred' metric accumulates the amount of bytes that was
extracted from the
From: Alexey Budankov
Implemented -z,--compression_level[=] option that enables compression
of mmaped kernel data buffers content in runtime during perf record mode
collection. Default option value is 1 (fastest compression).
Compression overhead has been measured for serial and AIO streaming
From: Alexey Budankov
Implemented functions are based on Zstd streaming compression API.
The functions are used in runtime to compress data that come from mmaped
kernel buffer. zstd_init(), zstd_fini() are used for initialization and
finalization to allocate and deallocate internal zstd
From: Alexey Budankov
Committer note:
Split from a larger patch, this only dumps PERF_RECORD_COMPRESSED as
unhandled, so that when we introduce the record part in the next patch,
we don't see unhandled events when using 'perf record -D'.
Changed it so that we dump the event if the handler is
From: Alexey Budankov
Implemented mmap data buffer that is used as the memory to operate
on when compressing data in case of serial trace streaming.
Signed-off-by: Alexey Budankov
Reviewed-by: Jiri Olsa
Cc: Alexander Shishkin
Cc: Andi Kleen
Cc: Namhyung Kim
Cc: Peter Zijlstra
Link:
From: Alexey Budankov
Compression is implemented using the functions from zstd.c. As the
memory to operate on the compression uses mmap->data buffer.
If Zstd streaming compression API fails for some reason the data to be
compressed are just copied into the memory buffers using plain memcpy().
From: Alexey Budankov
Compression is implemented using the functions from zstd.c. As the memory
to operate on the compression uses mmap->aio.data[] buffers. If Zstd
streaming compression API fails for some reason the data to be compressed
are just copied into the memory buffers using plain
From: Alexey Budankov
Initialized decompression part of Zstd based API so COMPRESSED records
would be decompressed into the resulting output data file.
Signed-off-by: Alexey Budankov
Reviewed-by: Jiri Olsa
Cc: Alexander Shishkin
Cc: Andi Kleen
Cc: Namhyung Kim
Cc: Peter Zijlstra
Link:
From: Florian Fainelli
ARM64's implementation of get_cpuidr_str() masks out the revision bits
[3:0] while reading the CPU identifier, there is no need for the
[[:xdigit:]] wildcard.
Signed-off-by: Florian Fainelli
Cc: Alexander Shishkin
Cc: Catalin Marinas
Cc: Ganapatrao Kulkarni
Cc: Jiri
From: Alexey Budankov
zstd_init(, comp_level = 0) initializes decompression part of API only
hat now consists of zstd_decompress_stream() function.
The perf.data PERF_RECORD_COMPRESSED records are decompressed using
zstd_decompress_stream() function into a linked list of mmaped memory
regions
From: Florian Fainelli
Broadcom's Brahma-B53 CPUs support the same type of events that the
Cortex-A53 supports, recognize its CPUID and map it to the cortex-a53
events.
Signed-off-by: Florian Fainelli
Acked-by: Will Deacon
Cc: Alexander Shishkin
Cc: Catalin Marinas
Cc: Ganapatrao Kulkarni
From: Alexey Budankov
Introduce a basic integration test for Zstd based record
compression/decompression using 'perf record' and 'perf report'.
Committer notes:
Reduce a bit the freq (from 25 kHz to 5 kHz) and the number of /dev/null
records read (from 1000 to 500), reducing the time it takes
From: Zenghui Yu
Address gcc warning:
pmu-events/jevents.c: In function ‘save_arch_std_events’:
pmu-events/jevents.c:417:15: warning: unused variable ‘sb’ [-Wunused-variable]
struct stat *sb = data;
^~
Signed-off-by: Zenghui Yu
Cc: Alexander Shishkin
Cc: Jiri Olsa
From: Arnaldo Carvalho de Melo
The shell tests should not redirect useful output to /dev/null, as that
is done automatically by 'perf test' in non verbose mode, so remove that
from the zstd comp/decomp test, fixing up verbose mode.
Before:
$ perf test zstd
68: Zstd perf.data
From: Florian Fainelli
The Cortex-A57 and Cortex-A72 both support all ARMv8 recommended events
up to the RC_ST_SPEC (0x91) event with the exception of:
- L1D_CACHE_REFILL_INNER (0x44)
- L1D_CACHE_REFILL_OUTER (0x45)
- L1D_TLB_RD (0x4E)
- L1D_TLB_WR (0x4F)
- L2D_TLB_REFILL_RD (0x5C)
-
From: Kan Liang
There may be different register mask for use with intr or user on some
platforms, e.g. Icelake.
Add weak functions arch__intr_reg_mask() and arch__user_reg_mask() to
return intr and user register mask respectively.
Check mask before printing or comparing the register name.
From: Kan Liang
The available registers for --int-regs and --user-regs may be different,
e.g. XMM registers.
Split parse_regs into two dedicated functions for --int-regs and
--user-regs respectively.
Modify the warning message. "--user-regs=?" should be applied to show
the available registers
From: Kan Liang
XMM registers can be collected on Icelake and later platforms.
Add specific arch__intr_reg_mask(), which creating an event to check if
the kernel and hardware can collect XMM registers.
Test on Skylake which doesn't support XMM registers collection. There is
nothing changed.
From: Thomas Richter
'perf report' displays recorded data on the screen and emits warnings
and debug messages in the status line (last one on screen).
perf also supports the possibility to write all debug messages to stderr
(instead of writing them to the status line).
This is achieved with
From: Adrian Hunter
The sample timestamp is updated to ensure that the timestamp represents
the time of the sample and not a branch that the decoder is still
walking towards. The sample timestamp is updated when the decoder
returns, but the decoder does not return for non-taken branches. Update
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