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2019-11-22Documentation/translation: Use Korean for Korean translation titleSeongJae Park
Signed-off-by: SeongJae Park <sj38.park@gmail.com> Link: https://lore.kernel.org/r/20191121234125.28032-7-sj38.park@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-11-22docs/memory-barriers.txt: Remove remaining references to mmiowb()SeongJae Park
This commit removes references to sections erased by Commit 915530396c78 ("Documentation: Kill all references to mmiowb()"). Signed-off-by: SeongJae Park <sj38.park@gmail.com> Link: https://lore.kernel.org/r/20191121234125.28032-6-sj38.park@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-11-22docs/memory-barriers.txt/kokr: Update I/O section to be clearer about CPU vs ↵SeongJae Park
thread Translate this commit to Korean: 9726840d9cf0 ("docs/memory-barriers.txt: Update I/O section to be clearer about CPU vs thread") Signed-off-by: SeongJae Park <sj38.park@gmail.com> Link: https://lore.kernel.org/r/20191121234125.28032-5-sj38.park@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-11-22docs/memory-barriers.txt/kokr: Fix style, spacing and grammar in I/O sectionSeongJae Park
Translate this commit to Korean: 0cde62a46e88 ("docs/memory-barriers.txt: Fix style, spacing and grammar in I/O section") Signed-off-by: SeongJae Park <sj38.park@gmail.com> Link: https://lore.kernel.org/r/20191121234125.28032-4-sj38.park@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-11-22Documentation/kokr: Kill all references to mmiowb()SeongJae Park
Translate this commit to Korean: 915530396c78 ("Documentation: Kill all references to mmiowb()") Signed-off-by: SeongJae Park <sj38.park@gmail.com> Link: https://lore.kernel.org/r/20191121234125.28032-3-sj38.park@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-11-22docs/memory-barriers.txt/kokr: Rewrite "KERNEL I/O BARRIER EFFECTS" sectionSeongJae Park
Translate this commit to Korean: 4614bbdee357 ("docs/memory-barriers.txt: Rewrite "KERNEL I/O BARRIER EFFECTS" section") Signed-off-by: SeongJae Park <sj38.park@gmail.com> Link: https://lore.kernel.org/r/20191121234125.28032-2-sj38.park@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-11-22MAINTAINERS: Update section for Ux500 clock driversUlf Hansson
There's no longer any need host a tree solely to serve changes for the Ux500 clock driver, thus drop this from the corresponding section and use the common clk tree instead. Moreover, let's also add the generic linux-clk mailing list and rename the section header. Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lkml.kernel.org/r/20191121100726.17725-1-ulf.hansson@linaro.org Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-11-22iomap: Fix pipe page leakage during splicingJan Kara
When splicing using iomap_dio_rw() to a pipe, we may leak pipe pages because bio_iov_iter_get_pages() records that the pipe will have full extent worth of data however if file size is not block size aligned iomap_dio_rw() returns less than what bio_iov_iter_get_pages() set up and splice code gets confused leaking a pipe page with the file tail. Handle the situation similarly to the old direct IO implementation and revert iter to actually returned read amount which makes iter consistent with value returned from iomap_dio_rw() and thus the splice code is happy. Fixes: ff6a9292e6f6 ("iomap: implement direct I/O") CC: stable@vger.kernel.org Reported-by: syzbot+991400e8eba7e00a26e1@syzkaller.appspotmail.com Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2019-11-22iomap: trace iomap_appply resultsDarrick J. Wong
Add some tracepoints so that we can more easily debug what the filesystem is returning from ->iomap_begin. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2019-11-22IB/mlx5: Implement callbacks for getting VFs GUID attributesDanit Goldberg
Implement the IB defined callback mlx5_ib_get_vf_guid used to query FW for VFs attributes and return node and port GUIDs. Signed-off-by: Danit Goldberg <danitg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-11-22IB/ipoib: Add ndo operation for getting VFs GUID attributesDanit Goldberg
Add ndo operation to the network driver that enables configuring ipoib_get_vf_guid operation. The operation allows to get a VF port and node GUIDs. Signed-off-by: Danit Goldberg <danitg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-11-22IB/core: Add interfaces to get VF node and port GUIDsDanit Goldberg
Provide ability to get node and port GUIDs of VFs to be symmetrical to already existing set option. Signed-off-by: Danit Goldberg <danitg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-11-22xfs: remove the mappedbno argument to xfs_da_get_bufChristoph Hellwig
Use the xfs_da_get_buf_daddr function directly for the two callers that pass a mapped disk address, and then remove the mappedbno argument. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-22xfs: remove the mappedbno argument to xfs_da_read_bufChristoph Hellwig
Move the code for reading an already mapped block into xfs_da3_node_read_mapped, which is the only caller ever passing a block number in the mappedbno argument and replace the mappedbno argument with the simple xfs_dabuf_get flags. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-22xfs: split xfs_da3_node_readChristoph Hellwig
Split xfs_da3_node_read into one variant that always looks up the daddr and doesn't accept holes, and one that already has a daddr at hand. This is in preparation of splitting up xfs_da_read_buf in a similar way. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-22xfs: remove the mappedbno argument to xfs_dir3_leafn_readChristoph Hellwig
This argument is always hard coded to -1, so remove it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-22xfs: remove the mappedbno argument to xfs_dir3_leaf_readChristoph Hellwig
This argument is always hard coded to -1, so remove it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-22xfs: remove the mappedbno argument to xfs_attr3_leaf_readChristoph Hellwig
This argument is always hard coded to -1, so remove it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-22xfs: remove the mappedbno argument to xfs_da_reada_bufChristoph Hellwig
Replace the mappedbno argument with the simple flags for xfs_da_reada_buf and xfs_dir3_data_readahead. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-22xfs: improve the xfs_dabuf_map calling conventionsChristoph Hellwig
Use a flags argument with the XFS_DABUF_MAP_HOLE_OK flag to signal that a hole is okay and not corruption, and return 0 with *nmap set to 0 to signal that case in the return value instead of a nameless -1 return code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-22xfs: refactor xfs_dabuf_mapChristoph Hellwig
Merge xfs_buf_map_from_irec and xfs_da_map_covers_blocks into a single loop in the caller. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-22xfs: simplify mappedbno handling in xfs_da_{get,read}_bufChristoph Hellwig
Shortcut the creation of xfs_bmbt_irec and xfs_buf_map for the case where the callers passed an already mapped xfs_daddr_t. This is in preparation for splitting these cases out entirely later. Also reject the mappedbno case for xfs_da_reada_buf as no callers currently uses it and it will be removed soon. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-22net/core: Add support for getting VF GUIDsDanit Goldberg
Introduce a new ndo: ndo_get_vf_guid, to get from the net device the port and node GUID. New applications can choose to use this interface to show GUIDs with iproute2 with commands such as: - ip link show ib4 ib4: <BROADCAST,MULTICAST> mtu 4092 qdisc noop state DOWN mode DEFAULT group default qlen 256 link/infiniband 00:00:0a:2d:fe:80:00:00:00:00:00:00:ec:0d:9a:03:00:44:36:8d brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff vf 0 link/infiniband 00:00:0a:2d:fe:80:00:00:00:00:00:00:ec:0d:9a:03:00:44:36:8d brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff, spoof checking off, NODE_GUID 22:44:33:00:33:11:00:33, PORT_GUID 10:21:33:12:00:11:22:10, link-state disable, trust off, query_rss off Signed-off-by: Danit Goldberg <danitg@mellanox.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-11-22Revert "drm/i915/gt: Wait for new requests in intel_gt_retire_requests()"Chris Wilson
From inside an active timeline in the execbuf ioctl, we may try to reclaim some space in the GGTT. We need GGTT space for all objects on !full-ppgtt platforms, and for context images everywhere. However, to free up space in the GGTT we may need to remove some pinned objects (e.g. context images) that require flushing the idle barriers to remove. For this we use the big hammer of intel_gt_wait_for_idle() However, commit 7936a22dd466 ("drm/i915/gt: Wait for new requests in intel_gt_retire_requests()") will continue spinning on the wait if a timeline is active but lacks requests, as is the case during execbuf reservation. Spinning forever is quite time consuming, so revert that commit and start again. In practice, the effect commit 7936a22dd466 was trying to achieve is accomplished by commit 1683d24c1470 ("drm/i915/gt: Move new timelines to the end of active_list"), so there is no immediate rush to replace the looping. Testcase: igt/gem_exec_reloc/basic-range Fixes: a46bfdc83fee ("drm/i915/gt: Wait for new requests in intel_gt_retire_requests()") References: 1683d24c1470 ("drm/i915/gt: Move new timelines to the end of active_list") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191121071044.97798-1-chris@chris-wilson.co.uk (cherry picked from commit 689122dcc36e08f53732adf7ae0246f62eff3eb6) [Joonas: Corrected Fixes: tag ref to match drm-intel-next-fixes] Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2019-11-22tracing: Remove unnecessary DEBUG_FS dependencyKusanagi Kouichi
Tracing replaced debugfs with tracefs. Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20191120104350753.EWCT.12796.ppp.dion.ne.jp@dmta0009.auone-net.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-22can: m_can_platform: remove unnecessary m_can_class_resume() callPankaj Sharma
The function m_can_runtime_resume() is getting recursively called from m_can_class_resume(). This results in a lock up. We need not call m_can_class_resume() during m_can_runtime_resume(). Fixes: f524f829b75a ("can: m_can: Create a m_can platform framework") Signed-off-by: Pankaj Sharma <pankj.sharma@samsung.com> Signed-off-by: Sriram Dash <sriram.dash@samsung.com> Acked-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-11-22can: m_can_platform: set net_device structure as driver dataPankaj Sharma
The current code is failing during clock prepare enable because of not getting proper clock from platform device. [ 0.852089] Call trace: [ 0.854516] 0xffff0000fa22a668 [ 0.857638] clk_prepare+0x20/0x34 [ 0.861019] m_can_runtime_resume+0x2c/0xe4 [ 0.865180] pm_generic_runtime_resume+0x28/0x38 [ 0.869770] __rpm_callback+0x16c/0x1bc [ 0.873583] rpm_callback+0x24/0x78 [ 0.877050] rpm_resume+0x428/0x560 [ 0.880517] __pm_runtime_resume+0x7c/0xa8 [ 0.884593] m_can_clk_start.isra.9.part.10+0x1c/0xa8 [ 0.889618] m_can_class_register+0x138/0x370 [ 0.893950] m_can_plat_probe+0x120/0x170 [ 0.897939] platform_drv_probe+0x4c/0xa0 [ 0.901924] really_probe+0xd8/0x31c [ 0.905477] driver_probe_device+0x58/0xe8 [ 0.909551] device_driver_attach+0x68/0x70 [ 0.913711] __driver_attach+0x9c/0xf8 [ 0.917437] bus_for_each_dev+0x50/0xa0 [ 0.921251] driver_attach+0x20/0x28 [ 0.924804] bus_add_driver+0x148/0x1fc [ 0.928617] driver_register+0x6c/0x124 [ 0.932431] __platform_driver_register+0x48/0x50 [ 0.937113] m_can_plat_driver_init+0x18/0x20 [ 0.941446] do_one_initcall+0x4c/0x19c [ 0.945259] kernel_init_freeable+0x1d0/0x280 [ 0.949591] kernel_init+0x10/0x100 [ 0.953057] ret_from_fork+0x10/0x18 [ 0.956614] Code: 00000000 00000000 00000000 00000000 (fa22a668) [ 0.962681] ---[ end trace 881f71bd609de763 ]--- [ 0.967301] Kernel panic - not syncing: Attempted to kill init! A device driver for CAN controller hardware registers itself with the Linux network layer as a network device. So, the driver data for m_can should ideally be of type net_device. Fixes: f524f829b75a ("can: m_can: Create a m_can platform framework") Signed-off-by: Pankaj Sharma <pankj.sharma@samsung.com> Signed-off-by: Sriram Dash <sriram.dash@samsung.com> Acked-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-11-22perf parse: Fix potential memory leak when handling tracepoint errorsIan Rogers
An error may be in place when tracepoint_error is called, use parse_events__handle_error to avoid a memory leak and to capture the first and last error. Error detected by LLVM's libFuzzer using the following event: $ perf stat -e 'msr/event/,f:e' event syntax error: 'msr/event/,f:e' \___ can't access trace events Error: No permissions to read /sys/kernel/debug/tracing/events/f/e Hint: Try 'sudo mount -o remount,mode=755 /sys/kernel/debug/tracing/' Initial error: event syntax error: 'msr/event/,f:e' \___ no value assigned for term Run 'perf list' for a list of valid events Usage: perf stat [<options>] [<command>] -e, --event <event> event selector. use 'perf list' to list available events Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: clang-built-linux@googlegroups.com Link: http://lore.kernel.org/lkml/20191120180925.21787-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf probe: Fix spelling mistake "addrees" -> "address"Colin Ian King
There is a spelling mistake in a pr_warning message. Fix it. Signed-off-by: Colin King <colin.king@canonical.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: kernel-janitors@vger.kernel.org Link: http://lore.kernel.org/lkml/20191121092623.374896-1-colin.king@canonical.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22libtraceevent: Fix memory leakage in copy_filter_typeHewenliang
It is necessary to free the memory that we have allocated when error occurs. Fixes: ef3072cd1d5c ("tools lib traceevent: Get rid of die in add_filter_type()") Signed-off-by: Hewenliang <hewenliang4@huawei.com> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com> Link: http://lore.kernel.org/lkml/20191119014415.57210-1-hewenliang4@huawei.com Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22libtraceevent: Fix header installationSudip Mukherjee
When we passed some location in DESTDIR, install_headers called do_install with DESTDIR as part of the second argument. But do_install is again using '$(DESTDIR_SQ)$2', so as a result the headers were installed in a location $DESTDIR/$DESTDIR. In my testing I passed DESTDIR=/home/sudip/test and the headers were installed in: /home/sudip/test/home/sudip/test/usr/include/traceevent. Lets remove DESTDIR from the second argument of do_install so that the headers are installed in the correct location. Signed-off-by: Sudipm Mukherjee <sudipm.mukherjee@gmail.com> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Sudipm Mukherjee <sudipm.mukherjee@gmail.com> Cc: linux-trace-devel@vger.kernel.org Link: http://lore.kernel.org/lkml/20191114133719.309-1-sudipm.mukherjee@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf intel-bts: Does not support AUX area samplingAdrian Hunter
Add an error message because Intel BTS does not support AUX area sampling. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-16-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf intel-pt: Add support for decoding AUX area samplesAdrian Hunter
Add support for dumping, queuing and decoding AUX area samples. Decoding samples is the same as regular decoding, except in the case where there are no timestamps, in which case buffers are decoded immediately before the sample event. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-15-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf intel-pt: Add support for recording AUX area samplesAdrian Hunter
Set up the default number of mmap pages, default sample size and default psb_period for AUX area sampling. Add documentation also. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-14-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf pmu: When using default config, record which bits of config were ↵Adrian Hunter
changed by the user Default config for a PMU is defined before selected events are parsed. That allows the user-entered config to override the default config. However that does not allow for changing the default config based on other options. For example, if the user chooses AUX area sampling mode, in the case of Intel PT, the psb_period needs to be small for sampling, so there is a need to set the default psb_period to 0 (2 KiB) in that case. However that should not override a value set by the user. To allow for that, when using default config, record which bits of config were changed by the user. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-13-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf auxtrace: Add support for queuing AUX area samplesAdrian Hunter
Add functions to queue AUX area samples in advance (auxtrace_queue_data()) or individually (auxtrace_queues__add_sample()) or find out what queue a sample belongs on (auxtrace_queues__sample_queue()). auxtrace_queue_data() can also queue snapshot data which keeps snapshots and samples ordered with respect to each other in case support for that is desired. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-12-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf session: Add facility to peek at all eventsAdrian Hunter
AUX area samples are not limited in how far back in time the sample could start. Consequently samples must be queued in advance to allow for time-ordered processing. To achieve that, add perf_session__peek_events() that walks and peeks at all the events. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-11-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf auxtrace: Add support for dumping AUX area samplesAdrian Hunter
Add support for dumping AUX area samples i.e. via the perf script/report -D (--dump-raw-trace) option. Committer notes: Add __maybe_unused to the two args for auxtrace__dump_auxtrace_sample() for when we don't HAVE_AUXTRACE_SUPPORT. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-10-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf inject: Cut AUX area samplesAdrian Hunter
After decoding AUX area samples, the AUX area data is no longer needed (having been replaced by synthesized events) so cut it out. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-9-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf record: Add aux-sample-size config termAdrian Hunter
To allow individual events to be selected for AUX area sampling, add aux-sample-size config term. attr.aux_sample_size is updated by auxtrace_parse_sample_options() so that the existing validation will see the value. Any event that has a non-zero aux_sample_size will cause AUX area sampling to be configured, irrespective of the --aux-sample option. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-8-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf record: Add support for AUX area samplingAdrian Hunter
Add a 'perf record' option '--aux-sample' to request AUX area sampling. AUX area sampling uses an overwriting buffer much like snapshot mode, so adjust the AUX buffer mmapping accordingly. To make it easy to queue samples for decoding, synthesize an ID index. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-7-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf auxtrace: Add support for AUX area sample recordingAdrian Hunter
Add support for parsing and validating AUX area sample options. At present, the only option is the sample size, but it is also necessary to ensure that events are in a group with an AUX area event as the leader. Committer note: Add missing 'static inline' in front of auxtrace_parse_sample_options() for when we don't HAVE_AUXTRACE_SUPPORT. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-6-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22perf auxtrace: Move perf_evsel__find_pmu()Adrian Hunter
Move perf_evsel__find_pmu() so it can be used without forward declaration. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-5-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22gpio: Add TODO item for regmap helperLinus Walleij
Add a TODO item for a generic MMIO regmap helper. Suggested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-11-22perf record: Add a function to test for kernel support for AUX area samplingAdrian Hunter
Architectures are expected to know if AUX area sampling is supported by the hardware. Add a function perf_can_aux_sample() which will determine whether the kernel supports it. Committer notes: I reported that this message was taking place on a kernel without the required bits: # perf record --aux-sample -e '{intel_pt//u,branch-misses:u}' Error: The sys_perf_event_open() syscall returned with 7 (Argument list too long) for event (branch-misses:u). /bin/dmesg | grep -i perf may provide additional information. Adrian sent a patch addressing it, with this explanation: ---- perf_can_aux_sample_size() always returned true because it did not pass the attribute size to sys_perf_event_open, nor correctly check the return value and errno. ---- After applying it I get, later in the series, when --aux-sample is added: # perf record --aux-sample -e '{intel_pt//u,branch-misses:u}' AUX area sampling is not supported by kernel Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20191115124225.5247-4-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-22ASoC: component: Add sync_stop PCM opsTakashi Iwai
Add the support of the new PCM sync_stop ops in ASoC component. It's optional and can be NULL unless you need the sync operation. Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20191121190709.29121-3-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-11-22ASoC: pcm: Make ioctl ops optionalTakashi Iwai
Now PCM core accepts the NULL ioctl ops as default, and passing a proper ioctl ops is no longer mandatory. Adjust soc_new_pcm() to allow also the NULL for component ioctl ops, too. Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20191121190709.29121-2-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-11-22ALSA: hda/hdmi - Clear codec->relaxed_resume flag at unbindingTakashi Iwai
The HDMI codec may leave codec->relaxed_resume flag set even after unbinding. Clear it unconditionally. It's very unlikely that this actually matters in the real use case, so just a fix for consistency. Fixes: ade49db337a9 ("ALSA: hda/hdmi - Allow audio component for AMD/ATI and Nvidia HDMI") Link: https://lore.kernel.org/r/20191122132624.5482-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-11-22ALSA: hda - Disable audio component for legacy Nvidia HDMI codecsTakashi Iwai
The old Nvidia chips have multiple HD-audio codecs on the same HD-audio controller, and this doesn't work as expected with the current audio component binding that is implemented under the one-codec-per- controller assumption; at the probe time, the driver leads to several kernel WARNING messages. For the proper support, we may change the pin2port and port2pin to traverse the codec list per the given pin number, but this needs more development and testing. As a quick workaround, instead, this patch drops the binding in the audio side for these legacy chips since the audio component support in nouveau graphics driver is still not merged (hence it's basically unused). BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205625 Fixes: ade49db337a9 ("ALSA: hda/hdmi - Allow audio component for AMD/ATI and Nvidia HDMI") Link: https://lore.kernel.org/r/20191122132000.4460-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-11-22ALSA: cs4236: fix error return comparison of an unsigned integerColin Ian King
The return from pnp_irq is an unsigned integer type resource_size_t and hence the error check for a positive non-error code is always going to be true. A check for a non-failure return from pnp_irq should in fact be for (resource_size_t)-1 rather than >= 0. Addresses-Coverity: ("Unsigned compared against 0") Fixes: a9824c868a2c ("[ALSA] Add CS4232 PnP BIOS support") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20191122131354.58042-1-colin.king@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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