History log of /openbmc/linux/arch/x86/events/intel/pt.c (Results 1 – 25 of 427)
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Revision tags: v6.6.67, v6.6.66, v6.6.65
# ecc23d0a 09-Dec-2024 Andrew Jeffery <andrew@codeconstruct.com.au>

Merge tag 'v6.6.64' into for/openbmc/dev-6.6

This is the 6.6.64 stable release


Revision tags: v6.6.64, v6.6.63, v6.6.62, v6.6.61, v6.6.60, v6.6.59
# e68ca7da 22-Oct-2024 Adrian Hunter <adrian.hunter@intel.com>

perf/x86/intel/pt: Fix buffer full but size is 0 case

commit 5b590160d2cf776b304eb054afafea2bd55e3620 upstream.

If the trace data buffer becomes full, a truncated flag [T] is reported
in PERF_RECOR

perf/x86/intel/pt: Fix buffer full but size is 0 case

commit 5b590160d2cf776b304eb054afafea2bd55e3620 upstream.

If the trace data buffer becomes full, a truncated flag [T] is reported
in PERF_RECORD_AUX. In some cases, the size reported is 0, even though
data must have been added to make the buffer full.

That happens when the buffer fills up from empty to full before the
Intel PT driver has updated the buffer position. Then the driver
calculates the new buffer position before calculating the data size.
If the old and new positions are the same, the data size is reported
as 0, even though it is really the whole buffer size.

Fix by detecting when the buffer position is wrapped, and adjust the
data size calculation accordingly.

Example

Use a very small buffer size (8K) and observe the size of truncated [T]
data. Before the fix, it is possible to see records of 0 size.

Before:

$ perf record -m,8K -e intel_pt// uname
Linux
[ perf record: Woken up 2 times to write data ]
[ perf record: Captured and wrote 0.105 MB perf.data ]
$ perf script -D --no-itrace | grep AUX | grep -F '[T]'
Warning:
AUX data lost 2 times out of 3!

5 19462712368111 0x19710 [0x40]: PERF_RECORD_AUX offset: 0 size: 0 flags: 0x1 [T]
5 19462712700046 0x19ba8 [0x40]: PERF_RECORD_AUX offset: 0x170 size: 0xe90 flags: 0x1 [T]

After:

$ perf record -m,8K -e intel_pt// uname
Linux
[ perf record: Woken up 3 times to write data ]
[ perf record: Captured and wrote 0.040 MB perf.data ]
$ perf script -D --no-itrace | grep AUX | grep -F '[T]'
Warning:
AUX data lost 2 times out of 3!

1 113720802995 0x4948 [0x40]: PERF_RECORD_AUX offset: 0 size: 0x2000 flags: 0x1 [T]
1 113720979812 0x6b10 [0x40]: PERF_RECORD_AUX offset: 0x2000 size: 0x2000 flags: 0x1 [T]

Fixes: 52ca9ced3f70 ("perf/x86/intel/pt: Add Intel PT PMU driver")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20241022155920.17511-2-adrian.hunter@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Revision tags: v6.6.58, v6.6.57, v6.6.56, v6.6.55
# 34d6f206 07-Oct-2024 Andrew Jeffery <andrew@codeconstruct.com.au>

Merge tag 'v6.6.54' into for/openbmc/dev-6.6

This is the 6.6.54 stable release


Revision tags: v6.6.54, v6.6.53, v6.6.52, v6.6.51, v6.6.50, v6.6.49, v6.6.48, v6.6.47, v6.6.46, v6.6.45, v6.6.44, v6.6.43, v6.6.42, v6.6.41
# cb0125ec 15-Jul-2024 Adrian Hunter <adrian.hunter@intel.com>

perf/x86/intel/pt: Fix sampling synchronization

commit d92792a4b26e50b96ab734cbe203d8a4c932a7a9 upstream.

pt_event_snapshot_aux() uses pt->handle_nmi to determine if tracing
needs to be stopped, ho

perf/x86/intel/pt: Fix sampling synchronization

commit d92792a4b26e50b96ab734cbe203d8a4c932a7a9 upstream.

pt_event_snapshot_aux() uses pt->handle_nmi to determine if tracing
needs to be stopped, however tracing can still be going because
pt->handle_nmi is set to zero before tracing is stopped in pt_event_stop,
whereas pt_event_snapshot_aux() requires that tracing must be stopped in
order to copy a sample of trace from the buffer.

Instead call pt_config_stop() always, which anyway checks config for
RTIT_CTL_TRACEEN and does nothing if it is already clear.

Note pt_event_snapshot_aux() can continue to use pt->handle_nmi to
determine if the trace needs to be restarted afterwards.

Fixes: 25e8920b301c ("perf/x86/intel/pt: Add sampling support")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20240715160712.127117-2-adrian.hunter@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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# 7e24a55b 04-Aug-2024 Andrew Jeffery <andrew@codeconstruct.com.au>

Merge tag 'v6.6.44' into for/openbmc/dev-6.6

This is the 6.6.44 stable release


Revision tags: v6.6.40, v6.6.39, v6.6.38, v6.6.37, v6.6.36
# 899857dd 24-Jun-2024 Adrian Hunter <adrian.hunter@intel.com>

perf/x86/intel/pt: Fix a topa_entry base address calculation

commit ad97196379d0b8cb24ef3d5006978a6554e6467f upstream.

topa_entry->base is a bit-field. Bit-fields are not promoted to a 64-bit
type,

perf/x86/intel/pt: Fix a topa_entry base address calculation

commit ad97196379d0b8cb24ef3d5006978a6554e6467f upstream.

topa_entry->base is a bit-field. Bit-fields are not promoted to a 64-bit
type, even if the underlying type is 64-bit, and so, if necessary, must
be cast to a larger type when calculations are done.

Fix a topa_entry->base address calculation by adding a cast.

Without the cast, the address was limited to 36-bits i.e. 64GiB.

The address calculation is used on systems that do not support Multiple
Entry ToPA (only Broadwell), and affects physical addresses on or above
64GiB. Instead of writing to the correct address, the address comprising
the first 36 bits would be written to.

Intel PT snapshot and sampling modes are not affected.

Fixes: 52ca9ced3f70 ("perf/x86/intel/pt: Add Intel PT PMU driver")
Reported-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240624201101.60186-3-adrian.hunter@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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# 69da07e5 24-Jun-2024 Adrian Hunter <adrian.hunter@intel.com>

perf/x86/intel/pt: Fix pt_topa_entry_for_page() address calculation

[ Upstream commit 3520b251dcae2b4a27b95cd6f745c54fd658bda5 ]

Currently, perf allocates an array of page pointers which is limited

perf/x86/intel/pt: Fix pt_topa_entry_for_page() address calculation

[ Upstream commit 3520b251dcae2b4a27b95cd6f745c54fd658bda5 ]

Currently, perf allocates an array of page pointers which is limited in
size by MAX_PAGE_ORDER. That in turn limits the maximum Intel PT buffer
size to 2GiB. Should that limitation be lifted, the Intel PT driver can
support larger sizes, except for one calculation in
pt_topa_entry_for_page(), which is limited to 32-bits.

Fix pt_topa_entry_for_page() address calculation by adding a cast.

Fixes: 39152ee51b77 ("perf/x86/intel/pt: Get rid of reverse lookup table for ToPA")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240624201101.60186-4-adrian.hunter@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30, v6.6.29, v6.6.28, v6.6.27, v6.6.26, v6.6.25, v6.6.24, v6.6.23, v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1, v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46, v6.1.45, v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39, v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35, v6.1.34, v6.1.33, v6.1.32, v6.1.31, v6.1.30, v6.1.29, v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24, v6.1.23, v6.1.22, v6.1.21, v6.1.20, v6.1.19, v6.1.18, v6.1.17, v6.1.16, v6.1.15, v6.1.14, v6.1.13
# 7ae9fb1b 21-Feb-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.3 merge window.


Revision tags: v6.2, v6.1.12, v6.1.11, v6.1.10, v6.1.9, v6.1.8, v6.1.7, v6.1.6, v6.1.5, v6.0.19
# 407da561 09-Jan-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v6.2-rc3' into next

Merge with mainline to bring in timer_shutdown_sync() API.


Revision tags: v6.0.18, v6.1.4, v6.1.3, v6.0.17
# 0d8eae7b 02-Jan-2023 Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-intel-next

Sync up with v6.2-rc1.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>


Revision tags: v6.1.2, v6.0.16
# b501d4dc 30-Dec-2022 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-gt-next

Sync after v6.2-rc1 landed in drm-next.

We need to get some dependencies in place before we can merge
the fixes series from Gwan-gyeong and Chris.

Referen

Merge drm/drm-next into drm-intel-gt-next

Sync after v6.2-rc1 landed in drm-next.

We need to get some dependencies in place before we can merge
the fixes series from Gwan-gyeong and Chris.

References: https://lore.kernel.org/all/Y6x5JCDnh2rvh4lA@intel.com/
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

show more ...


# 6599e683 28-Dec-2022 Mauro Carvalho Chehab <mchehab@kernel.org>

Merge tag 'v6.2-rc1' into media_tree

Linux 6.2-rc1

* tag 'v6.2-rc1': (14398 commits)
Linux 6.2-rc1
treewide: Convert del_timer*() to timer_shutdown*()
pstore: Properly assign mem_type propert

Merge tag 'v6.2-rc1' into media_tree

Linux 6.2-rc1

* tag 'v6.2-rc1': (14398 commits)
Linux 6.2-rc1
treewide: Convert del_timer*() to timer_shutdown*()
pstore: Properly assign mem_type property
pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES
cfi: Fix CFI failure with KASAN
perf python: Fix splitting CC into compiler and options
afs: Stop implementing ->writepage()
afs: remove afs_cache_netfs and afs_zap_permits() declarations
afs: remove variable nr_servers
afs: Fix lost servers_outstanding count
ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless
ALSA: azt3328: Remove the unused function snd_azf3328_codec_outl()
gcov: add support for checksum field
test_maple_tree: add test for mas_spanning_rebalance() on insufficient data
maple_tree: fix mas_spanning_rebalance() on insufficient data
hugetlb: really allocate vma lock for all sharable vmas
kmsan: export kmsan_handle_urb
kmsan: include linux/vmalloc.h
mm/mempolicy: fix memory leak in set_mempolicy_home_node system call
mm, mremap: fix mremap() expanding vma with addr inside vma
...

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Revision tags: v6.1.1, v6.0.15, v6.0.14, v6.0.13, v6.1, v6.0.12, v6.0.11, v6.0.10, v5.15.80
# 1e5b3968 24-Nov-2022 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next

Backmerging to get v6.1-rc6 into drm-misc-next.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


# 2d78eb03 22-Dec-2022 Takashi Iwai <tiwai@suse.de>

Merge branch 'for-next' into for-linus


# 4f2c0a4a 13-Dec-2022 Nick Terrell <terrelln@fb.com>

Merge branch 'main' into zstd-linus


# d69e8c63 09-Dec-2022 Jason Gunthorpe <jgg@nvidia.com>

Merge tag 'v6.1-rc8' into rdma.git for-next

For dependencies in following patches

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>


# d9f26ae7 05-Dec-2022 Ard Biesheuvel <ardb@kernel.org>

Merge tag 'v6.1-rc8' into efi/next

Linux 6.1-rc8


# 8ec2d95f 06-Dec-2022 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-v6.2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v6.2

This is a fairly sedate release for the core code, but there's been a
lot

Merge tag 'asoc-v6.2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v6.2

This is a fairly sedate release for the core code, but there's been a
lot of driver work especially around the x86 platforms and device tree
updates:

- More cleanups of the DAPM code from Morimoto-san.
- Factoring out of mapping hw_params onto SoundWire configuration by
Charles Keepax.
- The ever ongoing overhauls of the Intel DSP code continue, including
support for loading libraries and probes with IPC4 on SOF.
- Support for more sample formats on JZ4740.
- Lots of device tree conversions and fixups.
- Support for Allwinner D1, a range of AMD and Intel systems, Mediatek
systems with multiple DMICs, Nuvoton NAU8318, NXP fsl_rpmsg and
i.MX93, Qualcomm AudioReach Enable, MFC and SAL, RealTek RT1318 and
Rockchip RK3588

There's more cross tree updates than usual, though all fairly minor:

- Some OMAP board file updates that were depedencies for removing their
providers in ASoC, as part of a wider effort removing the support for
the relevant OMAP platforms.
- A new I2C API required for updates to the new I2C probe API.
- A DRM update making use of a new API for fixing the capabilities
advertised via hdmi-codec.

Since this is being sent early I might send some more stuff if you've
not yet sent your pull request and there's more come in.

show more ...


# f19a2caa 04-Dec-2022 Mark Brown <broonie@kernel.org>

ASoC/tda998x: Fix reporting of nonexistent capture streams

Merge series from Mark Brown <broonie@kernel.org>:

The recently added pcm-test selftest has pointed out that systems with
the tda998x driv

ASoC/tda998x: Fix reporting of nonexistent capture streams

Merge series from Mark Brown <broonie@kernel.org>:

The recently added pcm-test selftest has pointed out that systems with
the tda998x driver end up advertising that they support capture when in
reality as far as I can see the tda998x devices are transmit only. The
DAIs registered through hdmi-codec are bidirectional, meaning that for
I2S systems when combined with a typical bidrectional CPU DAI the
overall capability of the PCM is bidirectional. In most cases the I2S
links will clock OK but no useful audio will be returned which isn't so
bad but we should still not advertise the useless capability, and some
systems may notice problems for example due to pinmux management.

This is happening due to the hdmi-codec helpers not providing any
mechanism for indicating unidirectional audio so add one and use it in
the tda998x driver. It is likely other hdmi-codec users are also
affected but I don't have those systems to hand.

Mark Brown (2):
ASoC: hdmi-codec: Allow playback and capture to be disabled
drm: tda99x: Don't advertise non-existent capture support

drivers/gpu/drm/i2c/tda998x_drv.c | 2 ++
include/sound/hdmi-codec.h | 4 ++++
sound/soc/codecs/hdmi-codec.c | 30 +++++++++++++++++++++++++-----
3 files changed, 31 insertions(+), 5 deletions(-)

base-commit: f0c4d9fc9cc9462659728d168387191387e903cc
--
2.30.2

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# 90337f52 29-Nov-2022 Jason Gunthorpe <jgg@nvidia.com>

Merge tag 'v6.1-rc7' into iommufd.git for-next

Resolve conflicts in drivers/vfio/vfio_main.c by using the iommfd version.
The rc fix was done a different way when iommufd patches reworked this
code.

Merge tag 'v6.1-rc7' into iommufd.git for-next

Resolve conflicts in drivers/vfio/vfio_main.c by using the iommfd version.
The rc fix was done a different way when iommufd patches reworked this
code.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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# f2bb566f 29-Nov-2022 Jakub Kicinski <kuba@kernel.org>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

tools/lib/bpf/ringbuf.c
927cbb478adf ("libbpf: Handle size overflow for ringbuf mmap")
b486d19a0ab0 ("libbpf: checkpatch: Fixed cod

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

tools/lib/bpf/ringbuf.c
927cbb478adf ("libbpf: Handle size overflow for ringbuf mmap")
b486d19a0ab0 ("libbpf: checkpatch: Fixed code alignments in ringbuf.c")
https://lore.kernel.org/all/20221121122707.44d1446a@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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# acdce7aa 25-Nov-2022 Mark Brown <broonie@kernel.org>

fsi: Add regmap and refactor sbefifo

Merge series from Eddie James <eajames@linux.ibm.com>:

The SBEFIFO hardware can now be attached over a new I2C endpoint interface
called the I2C Responder (I2CR

fsi: Add regmap and refactor sbefifo

Merge series from Eddie James <eajames@linux.ibm.com>:

The SBEFIFO hardware can now be attached over a new I2C endpoint interface
called the I2C Responder (I2CR). In order to use the existing SBEFIFO
driver, add a regmap driver for the FSI bus and an endpoint driver for the
I2CR. Then, refactor the SBEFIFO and OCC drivers to clean up and use the
new regmap driver or the I2CR interface.

This branch just has the regmap change so it can be shared with the FSI
code.

show more ...


# 0c3852ad 24-Nov-2022 Arnaldo Carvalho de Melo <acme@redhat.com>

Merge remote-tracking branch 'torvalds/master' into perf/core

To pick up fixes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>


# d47f9580 23-Nov-2022 Dave Airlie <airlied@redhat.com>

Backmerge tag 'v6.1-rc6' into drm-next

Linux 6.1-rc6

This is needed for drm-misc-next and tegra.

Signed-off-by: Dave Airlie <airlied@redhat.com>


# 42a62da0 22-Nov-2022 Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge 6.1-rc6 into tty-next

We need the tty/serial fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


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