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This reverts commit e4dc45b1848bc6bcac31eb1b4ccdd7f6718b3c86.
This is causing instability on Linus' desktop, and I'm seeing
oops with VK CTS runs.
netconsole got me the following oops:
[ 1234.778760] BUG: kernel NULL pointer dereference, address: 0000000000000088
[ 1234.778782] #PF: supervisor read access in kernel mode
[ 1234.778787] #PF: error_code(0x0000) - not-present page
[ 1234.778791] PGD 0 P4D 0
[ 1234.778798] Oops: 0000 [#1] PREEMPT SMP NOPTI
[ 1234.778803] CPU: 7 PID: 805 Comm: systemd-journal Not tainted 6.0.0+ #2
[ 1234.778809] Hardware name: System manufacturer System Product
Name/PRIME X370-PRO, BIOS 5603 07/28/2020
[ 1234.778813] RIP: 0010:drm_sched_job_done.isra.0+0xc/0x140 [gpu_sched]
[ 1234.778828] Code: aa 0f 1d ce e9 57 ff ff ff 48 89 d7 e8 9d 8f 3f
ce e9 4a ff ff ff 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 54 55 53
48 89 fb <48> 8b af 88 00 00 00 f0 ff 8d f0 00 00 00 48 8b 85 80 01 00
00 f0
[ 1234.778834] RSP: 0000:ffffabe680380de0 EFLAGS: 00010087
[ 1234.778839] RAX: ffffffffc04e9230 RBX: 0000000000000000 RCX: 0000000000000018
[ 1234.778897] RDX: 00000ba278e8977a RSI: ffff953fb288b460 RDI: 0000000000000000
[ 1234.778901] RBP: ffff953fb288b598 R08: 00000000000000e0 R09: ffff953fbd98b808
[ 1234.778905] R10: 0000000000000000 R11: ffffabe680380ff8 R12: ffffabe680380e00
[ 1234.778908] R13: 0000000000000001 R14: 00000000ffffffff R15: ffff953fbd9ec458
[ 1234.778912] FS: 00007f35e7008580(0000) GS:ffff95428ebc0000(0000)
knlGS:0000000000000000
[ 1234.778916] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1234.778919] CR2: 0000000000000088 CR3: 000000010147c000 CR4: 00000000003506e0
[ 1234.778924] Call Trace:
[ 1234.778981] <IRQ>
[ 1234.778989] dma_fence_signal_timestamp_locked+0x6a/0xe0
[ 1234.778999] dma_fence_signal+0x2c/0x50
[ 1234.779005] amdgpu_fence_process+0xc8/0x140 [amdgpu]
[ 1234.779234] sdma_v3_0_process_trap_irq+0x70/0x80 [amdgpu]
[ 1234.779395] amdgpu_irq_dispatch+0xa9/0x1d0 [amdgpu]
[ 1234.779609] amdgpu_ih_process+0x80/0x100 [amdgpu]
[ 1234.779783] amdgpu_irq_handler+0x1f/0x60 [amdgpu]
[ 1234.779940] __handle_irq_event_percpu+0x46/0x190
[ 1234.779946] handle_irq_event+0x34/0x70
[ 1234.779949] handle_edge_irq+0x9f/0x240
[ 1234.779954] __common_interrupt+0x66/0x100
[ 1234.779960] common_interrupt+0xa0/0xc0
[ 1234.779965] </IRQ>
[ 1234.779968] <TASK>
[ 1234.779971] asm_common_interrupt+0x22/0x40
[ 1234.779976] RIP: 0010:finish_mkwrite_fault+0x22/0x110
[ 1234.779981] Code: 1f 84 00 00 00 00 00 90 0f 1f 44 00 00 41 55 41
54 55 48 89 fd 53 48 8b 07 f6 40 50 08 0f 84 eb 00 00 00 48 8b 45 30
48 8b 18 <48> 89 df e8 66 bd ff ff 48 85 c0 74 0d 48 89 c2 83 e2 01 48
83 ea
[ 1234.779985] RSP: 0000:ffffabe680bcfd78 EFLAGS: 00000202
Revert it for now and figure it out later.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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syzbot is reporting hung task at p9_fd_close() [1], for p9_mux_poll_stop()
from p9_conn_destroy() from p9_fd_close() is failing to interrupt already
started kernel_read() from p9_fd_read() from p9_read_work() and/or
kernel_write() from p9_fd_write() from p9_write_work() requests.
Since p9_socket_open() sets O_NONBLOCK flag, p9_mux_poll_stop() does not
need to interrupt kernel_read()/kernel_write(). However, since p9_fd_open()
does not set O_NONBLOCK flag, but pipe blocks unless signal is pending,
p9_mux_poll_stop() needs to interrupt kernel_read()/kernel_write() when
the file descriptor refers to a pipe. In other words, pipe file descriptor
needs to be handled as if socket file descriptor.
We somehow need to interrupt kernel_read()/kernel_write() on pipes.
A minimal change, which this patch is doing, is to set O_NONBLOCK flag
from p9_fd_open(), for O_NONBLOCK flag does not affect reading/writing
of regular files. But this approach changes O_NONBLOCK flag on userspace-
supplied file descriptors (which might break userspace programs), and
O_NONBLOCK flag could be changed by userspace. It would be possible to set
O_NONBLOCK flag every time p9_fd_read()/p9_fd_write() is invoked, but still
remains small race window for clearing O_NONBLOCK flag.
If we don't want to manipulate O_NONBLOCK flag, we might be able to
surround kernel_read()/kernel_write() with set_thread_flag(TIF_SIGPENDING)
and recalc_sigpending(). Since p9_read_work()/p9_write_work() works are
processed by kernel threads which process global system_wq workqueue,
signals could not be delivered from remote threads when p9_mux_poll_stop()
from p9_conn_destroy() from p9_fd_close() is called. Therefore, calling
set_thread_flag(TIF_SIGPENDING)/recalc_sigpending() every time would be
needed if we count on signals for making kernel_read()/kernel_write()
non-blocking.
Link: https://lkml.kernel.org/r/345de429-a88b-7097-d177-adecf9fed342@I-love.SAKURA.ne.jp
Link: https://syzkaller.appspot.com/bug?extid=8b41a1365f1106fd0f33 [1]
Reported-by: syzbot <syzbot+8b41a1365f1106fd0f33@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: syzbot <syzbot+8b41a1365f1106fd0f33@syzkaller.appspotmail.com>
Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com>
[Dominique: add comment at Christian's suggestion]
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
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Pull iomap updates from Darrick Wong:
"It's pretty quiet this time around -- a UAF bugfix and a new
tracepoint so we can watch file writeback:
- Fix a UAF bug when recording writeback mapping errors
- Add a tracepoint so that we can monitor writeback mappings"
* tag 'iomap-6.1-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
iomap: add a tracepoint for mappings returned by map_blocks
iomap: iomap: fix memory corruption when recording errors during writeback
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"The first two changes involve files outside of fs/ext4:
- submit_bh() can never return an error, so change it to return void,
and remove the unused checks from its callers
- fix I_DIRTY_TIME handling so it will be set even if the inode
already has I_DIRTY_INODE
Performance:
- Always enable i_version counter (as btrfs and xfs already do).
Remove some uneeded i_version bumps to avoid unnecessary nfs cache
invalidations
- Wake up journal waiters in FIFO order, to avoid some journal users
from not getting a journal handle for an unfairly long time
- In ext4_write_begin() allocate any necessary buffer heads before
starting the journal handle
- Don't try to prefetch the block allocation bitmaps for a read-only
file system
Bug Fixes:
- Fix a number of fast commit bugs, including resources leaks and out
of bound references in various error handling paths and/or if the
fast commit log is corrupted
- Avoid stopping the online resize early when expanding a file system
which is less than 16TiB to a size greater than 16TiB
- Fix apparent metadata corruption caused by a race with a metadata
buffer head getting migrated while it was trying to be read
- Mark the lazy initialization thread freezable to prevent suspend
failures
- Other miscellaneous bug fixes
Cleanups:
- Break up the incredibly long ext4_full_super() function by
refactoring to move code into more understandable, smaller
functions
- Remove the deprecated (and ignored) noacl and nouser_attr mount
option
- Factor out some common code in fast commit handling
- Other miscellaneous cleanups"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (53 commits)
ext4: fix potential out of bound read in ext4_fc_replay_scan()
ext4: factor out ext4_fc_get_tl()
ext4: introduce EXT4_FC_TAG_BASE_LEN helper
ext4: factor out ext4_free_ext_path()
ext4: remove unnecessary drop path references in mext_check_coverage()
ext4: update 'state->fc_regions_size' after successful memory allocation
ext4: fix potential memory leak in ext4_fc_record_regions()
ext4: fix potential memory leak in ext4_fc_record_modified_inode()
ext4: remove redundant checking in ext4_ioctl_checkpoint
jbd2: add miss release buffer head in fc_do_one_pass()
ext4: move DIOREAD_NOLOCK setting to ext4_set_def_opts()
ext4: remove useless local variable 'blocksize'
ext4: unify the ext4 super block loading operation
ext4: factor out ext4_journal_data_mode_check()
ext4: factor out ext4_load_and_init_journal()
ext4: factor out ext4_group_desc_init() and ext4_group_desc_free()
ext4: factor out ext4_geometry_check()
ext4: factor out ext4_check_feature_compatibility()
ext4: factor out ext4_init_metadata_csum()
ext4: factor out ext4_encoding_init()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull affs update from David Sterba:
"One minor update for AFFS, switching away from strlcpy"
* tag 'affs-for-6.1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
affs: move from strlcpy with unused retval to strscpy
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"There's a bunch of performance improvements, most notably the FIEMAP
speedup, the new block group tree to speed up mount on large
filesystems, more io_uring integration, some sysfs exports and the
usual fixes and core updates.
Summary:
Performance:
- outstanding FIEMAP speed improvement
- algorithmic change how extents are enumerated leads to orders of
magnitude speed boost (uncached and cached)
- extent sharing check speedup (2.2x uncached, 3x cached)
- add more cancellation points, allowing to interrupt seeking in
files with large number of extents
- more efficient hole and data seeking (4x uncached, 1.3x cached)
- sample results:
256M, 32K extents: 4s -> 29ms (~150x)
512M, 64K extents: 30s -> 59ms (~550x)
1G, 128K extents: 225s -> 120ms (~1800x)
- improved inode logging, especially for directories (on dbench
workload throughput +25%, max latency -21%)
- improved buffered IO, remove redundant extent state tracking,
lowering memory consumption and avoiding rb tree traversal
- add sysfs tunable to let qgroup temporarily skip exact accounting
when deleting snapshot, leading to a speedup but requiring a rescan
after that, will be used by snapper
- support io_uring and buffered writes, until now it was just for
direct IO, with the no-wait semantics implemented in the buffered
write path it now works and leads to speed improvement in IOPS
(2x), throughput (2.2x), latency (depends, 2x to 150x)
- small performance improvements when dropping and searching for
extent maps as well as when flushing delalloc in COW mode
(throughput +5MB/s)
User visible changes:
- new incompatible feature block-group-tree adding a dedicated tree
for tracking block groups, this allows a much faster load during
mount and avoids seeking unlike when it's scattered in the extent
tree items
- this reduces mount time for many-terabyte sized filesystems
- conversion tool will be provided so existing filesystem can also
be updated in place
- to reduce test matrix and feature combinations requires no-holes
and free-space-tree (mkfs defaults since 5.15)
- improved reporting of super block corruption detected by scrub
- scrub also tries to repair super block and does not wait until next
commit
- discard stats and tunables are exported in sysfs
(/sys/fs/btrfs/FSID/discard)
- qgroup status is exported in sysfs
(/sys/sys/fs/btrfs/FSID/qgroups/)
- verify that super block was not modified when thawing filesystem
Fixes:
- FIEMAP fixes
- fix extent sharing status, does not depend on the cached status
where merged
- flush delalloc so compressed extents are reported correctly
- fix alignment of VMA for memory mapped files on THP
- send: fix failures when processing inodes with no links (orphan
files and directories)
- fix race between quota enable and quota rescan ioctl
- handle more corner cases for read-only compat feature verification
- fix missed extent on fsync after dropping extent maps
Core:
- lockdep annotations to validate various transactions states and
state transitions
- preliminary support for fs-verity in send
- more effective memory use in scrub for subpage where sector is
smaller than page
- block group caching progress logic has been removed, load is now
synchronous
- simplify end IO callbacks and bio handling, use chained bios
instead of own tracking
- add no-wait semantics to several functions (tree search, nocow,
flushing, buffered write
- cleanups and refactoring
MM changes:
- export balance_dirty_pages_ratelimited_flags"
* tag 'for-6.1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (177 commits)
btrfs: set generation before calling btrfs_clean_tree_block in btrfs_init_new_buffer
btrfs: drop extent map range more efficiently
btrfs: avoid pointless extent map tree search when flushing delalloc
btrfs: remove unnecessary next extent map search
btrfs: remove unnecessary NULL pointer checks when searching extent maps
btrfs: assert tree is locked when clearing extent map from logging
btrfs: remove unnecessary extent map initializations
btrfs: remove the refcount warning/check at free_extent_map()
btrfs: add helper to replace extent map range with a new extent map
btrfs: move open coded extent map tree deletion out of inode eviction
btrfs: use cond_resched_rwlock_write() during inode eviction
btrfs: use extent_map_end() at btrfs_drop_extent_map_range()
btrfs: move btrfs_drop_extent_cache() to extent_map.c
btrfs: fix missed extent on fsync after dropping extent maps
btrfs: remove stale prototype of btrfs_write_inode
btrfs: enable nowait async buffered writes
btrfs: assert nowait mode is not used for some btree search functions
btrfs: make btrfs_buffered_write nowait compatible
btrfs: plumb NOWAIT through the write path
btrfs: make lock_and_cleanup_extent_if_need nowait compatible
...
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Pull vfs constification updates from Al Viro:
"whack-a-mole: constifying struct path *"
* tag 'pull-path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ecryptfs: constify path
spufs: constify path
nd_jump_link(): constify path
audit_init_parent(): constify path
__io_setxattr(): constify path
do_proc_readlink(): constify path
overlayfs: constify path
fs/notify: constify path
may_linkat(): constify path
do_sys_name_to_handle(): constify path
->getprocattr(): attribute name is const char *, TYVM...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc tomoyo changes from Al Viro:
"A couple of assorted tomoyo patches"
* tag 'pull-tomoyo' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
tomoyo: struct path it might get from LSM callers won't have NULL dentry or mnt
tomoyo: use vsnprintf() properly
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull file_inode() updates from Al Vrio:
"whack-a-mole: cropped up open-coded file_inode() uses..."
* tag 'pull-file_inode' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
orangefs: use ->f_mapping
_nfs42_proc_copy(): use ->f_mapping instead of file_inode()->i_mapping
dma_buf: no need to bother with file_inode()->i_mapping
nfs_finish_open(): don't open-code file_inode()
bprm_fill_uid(): don't open-code file_inode()
sgx: use ->f_mapping...
exfat_iterate(): don't open-code file_inode(file)
ibmvmc: don't open-code file_inode()
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Pull vfs file updates from Al Viro:
"struct file-related stuff"
* tag 'pull-file' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
dma_buf_getfile(): don't bother with ->f_flags reassignments
Change calling conventions for filldir_t
locks: fix TOCTOU race when granting write lease
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs d_path updates from Al Viro.
* tag 'pull-d_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
d_path.c: typo fix...
dynamic_dname(): drop unused dentry argument
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Pull vfs inode update from Al Viro:
"Saner inode_init_always(), also fixing a nilfs problem"
* tag 'pull-inode' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: fix UAF/GPF bug in nilfs_mdt_destroy
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Trvial merge conflicts against rdma.git for-rc resolved matching
linux-next:
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
drivers/infiniband/hw/hns/hns_roce_main.c
https://lore.kernel.org/r/20220929124005.105149-1-broonie@kernel.org
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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- Add Mahesh J Salgaonkar as EEH maintainer
- Add Manivannan Sadhasivam as PCI Endpoint reviewer
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
"Several documentation fixes, UML related cleanups, and a feature to
enable/disable KUnit tests
This includes the change to rename all_test_uml.config, and use it for
'--alltests'. Note: if anyone was using all_tests_uml.config, this
change breaks them.
This change simplifies the usage and eliminates the need to type:
--kunitconfig=tools/testing/kunit/configs/all_tests_uml.config
A simple workaround to create a symlink to the new name can solve the
problem for anyone using all_tests_uml.config.
all_tests_uml.config should work across ~all architectures"
* tag 'linux-kselftest-kunit-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
Documentation: Kunit: Use full path to .kunitconfig
kunit: tool: rename all_test_uml.config, use it for --alltests
kunit: tool: remove UML specific options from all_tests_uml.config
lib: stackinit: update reference to kunit-tool
lib: overflow: update reference to kunit-tool
Documentation: KUnit: update links in the index page
Documentation: KUnit: add intro to the getting-started page
Documentation: KUnit: Reword start guide for selecting tests
Documentation: KUnit: add note about mrproper in start.rst
Documentation: KUnit: avoid repeating "kunit.py run" in start.rst
Documentation: KUnit: remove duplicated docs for kunit_tool
Documentation: Kunit: Add ref for other kinds of tests
Documentation: KUnit: Fix non-uml anchor
Documentation: Kunit: Fix inconsistent titles
Documentation: kunit: fix trivial typo
kunit: no longer call module_info(test, "Y") for kunit modules
kunit: add kunit.enable to enable/disable KUnit test
kunit: tool: make --raw_output=kunit (aka --raw_output) preserve leading spaces
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
"Fixes and new tests:
- Add an amd-pstate-ut test module, used by kselftest to unit test
amd-pstate functionality
- Fixes and cleanups to to cpu-hotplug to delete the fault injection
test code
- Improvements to vm test to use top_srcdir for builds"
* tag 'linux-kselftest-next-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
docs:kselftest: fix kselftest_module.h path of example module
cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT
selftests/cpu-hotplug: Add log info when test success
selftests/cpu-hotplug: Reserve one cpu online at least
selftests/cpu-hotplug: Delete fault injection related code
selftests/cpu-hotplug: Use return instead of exit
selftests/cpu-hotplug: Correct log info
cpufreq: amd-pstate: modify type in argument 2 for filp_open
Documentation: amd-pstate: Add unit test introduction
selftests: amd-pstate: Add test trigger for amd-pstate driver
cpufreq: amd-pstate: Add test module for amd-pstate driver
cpufreq: amd-pstate: Expose struct amd_cpudata
selftests/vm: use top_srcdir instead of recomputing relative paths
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A few fields are missing in the usage message printed when an unknown
field option is passed. Add them to the list.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: https://lore.kernel.org/r/20221006153946.7816-9-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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A hw component to track outstanding L1 Data Cache misses is called LFB
(Line Fill Buffer) on Intel and Arm. However similar component exists on
other arch with different names, for ex, it's called MAB (Miss Address
Buffer) on AMD. Use 'LFB/MAB' instead of just 'LFB'.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: https://lore.kernel.org/r/20221006153946.7816-8-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The 'perf mem' and 'perf c2c' tools can be used with 3 different events:
load, store and combined load-store. Some architectures might support
only partial set of events in which case, perf prints an empty line for
unsupported events. Avoid that.
Ex, AMD Zen cpus supports only combined load-store event and does not
support individual load and store event.
Before patch:
$ perf mem record -e list
mem-ldst : available
$
After patch:
$ perf mem record -e list
mem-ldst : available
$
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: https://lore.kernel.org/r/20221006153946.7816-7-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
The 'perf mem' and 'perf c2c' tools are wrappers around 'perf record'
with mem load/ store events. IBS tagged load/store sample provides most
of the information needed for these tools. Wire in the "ibs_op//" event
as mem-ldst event for AMD.
There are some limitations though: Only load/store micro-ops provide
mem/c2c information. Whereas, IBS does not have a way to choose a
particular type of micro-op to tag. This results in many non-LS
micro-ops being tagged which appear as N/A in the perf report. IBS,
being an uncore pmu from kernel point of view[1], does not support per
process monitoring. Thus, perf mem/c2c on AMD are currently supported in
per-cpu mode only.
Example:
$ sudo perf mem record -- -c 10000
^C[ perf record: Woken up 227 times to write data ]
[ perf record: Captured and wrote 58.760 MB perf.data (836978 samples) ]
$ sudo perf mem report -F mem,sample,snoop
Samples: 836K of event 'ibs_op//', Event count (approx.): 8418762
Memory access Samples Snoop
N/A 700620 N/A
L1 hit 126675 N/A
L2 hit 424 N/A
L3 hit 664 HitM
L3 hit 10 N/A
Local RAM hit 2 N/A
Remote RAM (1 hop) hit 8558 N/A
Remote Cache (1 hop) hit 3 N/A
Remote Cache (1 hop) hit 2 HitM
Remote Cache (2 hops) hit 10 HitM
Remote Cache (2 hops) hit 6 N/A
Uncached hit 4 N/A
$
[1]: https://lore.kernel.org/lkml/20220829113347.295-1-ravi.bangoria@amd.com
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: https://lore.kernel.org/r/20221006153946.7816-6-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Currently perf sets PERF_SAMPLE_WEIGHT flag only for mem load events.
Set it for combined load-store event as well which will enable recording
of load latency by default on arch that does not support independent
mem load event.
Also document missing -W in perf-record man page.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: https://lore.kernel.org/r/20221006153946.7816-5-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add support for printing these new fields in perf mem report.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: https://lore.kernel.org/r/20221006153946.7816-4-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Although new details added into this header is currently used by kernel
only, tools copy needs to be in sync with kernel file to avoid
tools/perf/check-headers.sh warnings.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: https://lore.kernel.org/r/20221006153946.7816-3-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Two new fields for mem_lvl_num has been introduced: PERF_MEM_LVLNUM_IO
and PERF_MEM_LVLNUM_CXL which are required to support perf mem/c2c on
AMD platform.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: https://lore.kernel.org/r/20221006153946.7816-2-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"This contains a series from Linus Walleij to unify the linux/io.h
interface by making the ia64, alpha, parisc and sparc include
asm-generic/io.h.
All functions provided by the generic header are now available to all
drivers, but the architectures can still override this.
For the moment, mips and sh still don't include asm-generic/io.h but
provide a full set of functions themselves.
There are also a few minor cleanups unrelated to this"
* tag 'asm-generic-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
alpha: add full ioread64/iowrite64 implementation
parisc: Drop homebrewn io[read|write]64_[lo_hi|hi_lo]
parisc: hide ioread64 declaration on 32-bit
ia64: export memory_add_physaddr_to_nid to fix cxl build error
asm-generic: Remove empty #ifdef SA_RESTORER
parisc: Use the generic IO helpers
parisc: Remove 64bit access on 32bit machines
sparc: Fix the generic IO helpers
alpha: Use generic <asm-generic/io.h>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- arm64 perf: DDR PMU driver for Alibaba's T-Head Yitian 710 SoC, SVE
vector granule register added to the user regs together with SVE perf
extensions documentation.
- SVE updates: add HWCAP for SVE EBF16, update the SVE ABI
documentation to match the actual kernel behaviour (zeroing the
registers on syscall rather than "zeroed or preserved" previously).
- More conversions to automatic system registers generation.
- vDSO: use self-synchronising virtual counter access in gettimeofday()
if the architecture supports it.
- arm64 stacktrace cleanups and improvements.
- arm64 atomics improvements: always inline assembly, remove LL/SC
trampolines.
- Improve the reporting of EL1 exceptions: rework BTI and FPAC
exception handling, better EL1 undefs reporting.
- Cortex-A510 erratum 2658417: remove BF16 support due to incorrect
result.
- arm64 defconfig updates: build CoreSight as a module, enable options
necessary for docker, memory hotplug/hotremove, enable all PMUs
provided by Arm.
- arm64 ptrace() support for TPIDR2_EL0 (register provided with the SME
extensions).
- arm64 ftraces updates/fixes: fix module PLTs with mcount, remove
unused function.
- kselftest updates for arm64: simple HWCAP validation, FP stress test
improvements, validation of ZA regs in signal handlers, include
larger SVE and SME vector lengths in signal tests, various cleanups.
- arm64 alternatives (code patching) improvements to robustness and
consistency: replace cpucap static branches with equivalent
alternatives, associate callback alternatives with a cpucap.
- Miscellaneous updates: optimise kprobe performance of patching
single-step slots, simplify uaccess_mask_ptr(), move MTE registers
initialisation to C, support huge vmalloc() mappings, run softirqs on
the per-CPU IRQ stack, compat (arm32) misalignment fixups for
multiword accesses.
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (126 commits)
arm64: alternatives: Use vdso/bits.h instead of linux/bits.h
arm64/kprobe: Optimize the performance of patching single-step slot
arm64: defconfig: Add Coresight as module
kselftest/arm64: Handle EINTR while reading data from children
kselftest/arm64: Flag fp-stress as exiting when we begin finishing up
kselftest/arm64: Don't repeat termination handler for fp-stress
ARM64: reloc_test: add __init/__exit annotations to module init/exit funcs
arm64/mm: fold check for KFENCE into can_set_direct_map()
arm64: ftrace: fix module PLTs with mcount
arm64: module: Remove unused plt_entry_is_initialized()
arm64: module: Make plt_equals_entry() static
arm64: fix the build with binutils 2.27
kselftest/arm64: Don't enable v8.5 for MTE selftest builds
arm64: uaccess: simplify uaccess_mask_ptr()
arm64: asm/perf_regs.h: Avoid C++-style comment in UAPI header
kselftest/arm64: Fix typo in hwcap check
arm64: mte: move register initialization to C
arm64: mm: handle ARM64_KERNEL_USES_PMD_MAPS in vmemmap_populate()
arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()
arm64/sve: Add Perf extensions documentation
...
|
|
Pull ARM SoC updates from Arnd Bergmann:
"The main changes this time are for the organization of the Kconfig
files, introducing per-vendor top-level options on arm64 to match
those on arm32, and making the platform selection on arm32 more
uniform, in particular for the remaining StrongARM platforms that
still have a couple of special cases compared to the more recent ones.
I also did a cleanup of the old Footbridge platform, which was the
last holdout for the phys_to_dma()/dma_to_phys() interface that is now
completely gone from arm32, completing work started by Christoph
Hellwig"
* tag 'arm-soc-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (21 commits)
ARM: aspeed: Kconfig: Fix indentation
ARM: Drop CMDLINE_* dependency on ATAGS
ARM: Drop CMDLINE_FORCE dependency on !ARCH_MULTIPLATFORM
ARM: s3c: remove orphan declarations from arch/arm/mach-s3c/devs.h
pxa: Drop if with an always false condition
ARM: orion: fix include path
ARM: shmobile: Drop selecting SOC_BUS
arm64: renesas: Drop selecting SOC_BUS
ARM: disallow PCI with MMU=n again
ARM: footbridge: remove custom DMA address handling
MAINTAINERS: Add BCM4908 maintainer to BCMBCA entry
ARM: footbridge: move isa-dma support into footbridge
ARM: footbridge: remove leftover from personal-server
ARM: footbridge: remove addin mode
arm64: Kconfig.platforms: Group NXP platforms together
arm64: Kconfig.platforms: Re-organized Broadcom menu
ARM: make ARCH_MULTIPLATFORM user-visible
ARM: fix XIP_KERNEL dependencies
ARM: Kconfig: clean up platform selection
ARM: simplify machdirs/platdirs handling
...
|
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Pull ARM devicetree updates from Arnd Bergmann:
"Most of the changes fall into one of three categories: adding support
for additional devices on existing machines, cleaning up issues found
by the ongoing conversion to machine-readable bindings, and addressing
minor mistakes in the existing DT data.
Across SoC vendors, Qualcomm and Freescale stick out as getting the
most updates, which corresponds to their dominance in the mobile phone
and embedded industrial markets, respectively.
There are 636 non-merge changeset in this branch, which is a little
lower than most times, but more importantly we only add 36 machine
files, which is about half of what we had the past few releases.
Eight new SoCs are added, but all of them are variations of already
supported SoC families, and most of them come with one reference board
design from the SoC vendor:
- Mediatek MT8186 is a Chromebook/Tablet type SoC, similar to the
MT65xx series of phone SoCs, with two Cortex-A76 and six Cortex-A55
cores.
- TI AM62A is another member of the K3 family with Cortex-A53 cores,
this one is targetted at Video/Vision processing for industrial and
automotive applications.
- NXP i.MX8DXL is another chip for this market in the ever-growing
i.MX8 family, this one again with two Cortex-A35 cores.
- Renesas R-Car H3Ne-1.7G (R8A779MB) and R-Car V3H2 (R8A77980A) are
minor updates of R8A77951 and R8A77980, respectively.
- Qualcomm IPQ8064-v2.0, IPQ8062 and IPQ8065 are all variants of the
IPQ8064 chip, with minimally different features.
The AMD Pensando Elba and Apple M1 Ultra SoC support was getting close
this time, but in the end did not make the cut.
The new machines based on existing SoC support are fairly uneventful:
- Sony Xperia 1 IV is a fairly recent phone based on Qualcomm
Snapdragon 8 Gen 1.
- Three Samsung phones based on Snapdragon 410: Galaxy E5, E7 and
Grand Max. These are added for both 32-bit and 64-bit kernels, as
they originally shipped running 32-bit code.
- Two new servers using AST2600 BMCs: AMD DaytonaX and Ampere Mt.
Mitchell
- Three new machines based on Rockchips RK3399 and RK3566: Anberic
RG353P and RG503, Pine64 Pinephone Pro, Open AI Lab
- Multiple NXP i.MX6/i.MX8 based boards: Kontron SL/BL i.MX8MM OSM-S,
i.MX8MM Gateworks GW7904, MSC SM2S-IMX8PLUS SoM and carrier board
- Two development boards in the Microchip AT91 family: SAMA5D3-EDS
and lan966x-pcb8290.
- Minor variants of existing boards using Amlogic, Broadcom, Marvell,
Rockchips, Freescale Layerscape and Socionext Uniphier SoCs"
* tag 'arm-dt-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (617 commits)
Revert "ARM: dts: BCM5301X: Add basic PCI controller properties"
ARM: dts: s5pv210: correct double "pins" in pinmux node
ARM: dts: exynos: fix polarity of VBUS GPIO of Origen
arm64: dts: exynos: fix polarity of "enable" line of NFC chip in TM2
arm64: dts: uniphier: Add L2 cache node
arm64: dts: uniphier: Remove compatible "snps,dw-pcie" from pcie node
arm64: dts: uniphier: Fix opp-table node name for LD20
arm64: dts: uniphier: Add USB-device support for PXs3 reference board
arm64: dts: uniphier: Add ahci controller nodes for PXs3
arm64: dts: uniphier: Use GIC interrupt definitions
arm64: dts: uniphier: Rename gpio-hog nodes
arm64: dts: uniphier: Rename usb-glue node for USB3 to usb-controller
arm64: dts: uniphier: Rename usb-phy node for USB2 to usb-controller
arm64: dts: uniphier: Rename pvtctl node to thermal-sensor
ARM: dts: uniphier: Remove compatible "snps,dw-pcie-ep" from pcie-ep node
ARM: dts: uniphier: Move interrupt-parent property to each child node in uniphier-support-card
ARM: dts: uniphier: Add ahci controller nodes for PXs2
ARM: dts: uniphier: Add ahci controller nodes for Pro4
ARM: dts: uniphier: Use GIC interrupt definitions
ARM: dts: uniphier: Rename gpio-hog node
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM driver updates from Arnd Bergmann:
"The drivers branch for 6.1 is a bit larger than for most releases.
Most of the changes come from SoC maintainers for the drivers/soc
subsystem:
- A new driver for error handling on the NVIDIA Tegra 'control
backbone' bus.
- A new driver for Qualcomm LLCC/DDR bandwidth measurement
- New Rockchip rv1126 and rk3588 power domain drivers
- DT binding updates for memory controllers, older Rockchip SoCs,
various Mediatek devices, Qualcomm SCM firmware
- Minor updates to Hisilicon LPC bus, the Allwinner SRAM driver, the
Apple rtkit firmware driver, Tegra firmware
- Minor updates for SoC drivers (Samsung, Mediatek, Renesas, Tegra,
Qualcomm, Broadcom, NXP, ...)
There are also some separate subsystem with downstream maintainers
that merge updates this way:
- Various updates and new drivers in the memory controller subsystem
for Mediatek and Broadcom SoCs
- Small set of changes in preparation to add support for FF-A v1.1
specification later, in the Arm FF-A firmware subsystem
- debugfs support in the PSCI firmware subsystem"
* tag 'arm-drivers-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (149 commits)
ARM: remove check for CONFIG_DEBUG_LL_SER3
firmware/psci: Add debugfs support to ease debugging
firmware/psci: Print a warning if PSCI doesn't accept PC mode
dt-bindings: memory: snps,dw-umctl2-ddrc: Extend schema with IRQs/resets/clocks props
dt-bindings: memory: snps,dw-umctl2-ddrc: Replace opencoded numbers with macros
dt-bindings: memory: snps,dw-umctl2-ddrc: Use more descriptive device name
dt-bindings: memory: synopsys,ddrc-ecc: Detach Zynq DDRC controller support
soc: sunxi: sram: Add support for the D1 system control
soc: sunxi: sram: Export the LDO control register
soc: sunxi: sram: Save a pointer to the OF match data
soc: sunxi: sram: Return void from the release function
soc: apple: rtkit: Add apple_rtkit_poll
soc: imx: add i.MX93 media blk ctrl driver
soc: imx: add i.MX93 SRC power domain driver
soc: imx: imx8m-blk-ctrl: Use genpd_xlate_onecell
soc: imx: imx8mp-blk-ctrl: handle PCIe PHY resets
soc: imx: imx8m-blk-ctrl: add i.MX8MP VPU blk ctrl
soc: imx: add i.MX8MP HDMI blk ctrl HDCP/HRV_MWR
soc: imx: add icc paths for i.MX8MP hsio/hdmi blk ctrl
soc: imx: add icc paths for i.MX8MP media blk ctrl
...
|
|
'perf stat' has options to aggregate the counts in different modes like
per socket, per core etc. The function "aggr_printout" in
util/stat-display.c which is used to print the aggregates, has a check
for cpu in case of AGGR_NONE.
This check was originally using condition : "if (id.cpu.cpu > -1)". But
this got changed after commit df936cadfb58 ("perf stat: Add JSON output
option"), which added option to output json format for different
aggregation modes. After this commit, the check in "aggr_printout" is
using "if (id.core > -1)".
The old code was using "id.cpu.cpu > -1" while the new code is using
"id.core > -1". But since the value printed is id.cpu.cpu, fix this
check to use cpu and not core.
Suggested-by: Ian Rogers <irogers@google.com>
Suggested-by: James Clark <james.clark@arm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20221006114225.66303-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add/improve documentation helping people get started with CoreSight and
perf as well as describe the testing and how it works.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20220909152803.2317006-14-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Ignore other output files of the new CoreSight tests so they don't
fill git status with noise we don't need or want.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-13-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This adds scripts to drive the unroll thread tests to compare perf
output against a minimum bar of content/quality.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-12-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add test tool to be driven by further test scripts. This is a simple C
based test that is for arm64 with some inline ASM to manually unroll a
lot of code to have a very long sequence of commands.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-11-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add a script to drive the thread loop test that gathers data so
it passes a minimum bar (in this case do we get any perf context data
for every thread).
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-10-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add test tool to be driven by further test scripts. This is a simple C
based loop with threads test to drive from scripts that can output TIDs
for tracking/checking.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-9-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add a script to drive the threaded memcpy test that gathers data so it
passes a minimum bar for amount and quality of content that we extract
from the kernel's perf support.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-8-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add test tool to be driven by further test scripts. This is a simple C
based memcpy with threads test to drive from scripts.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-7-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Ignore perf output data files generated by perf tests for cleaner git
status.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-6-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add a script to drive the asm pureloop test for arm64/CoreSight that
gathers data so it passes a minimum bar for amount and quality of
content that we extract from the kernel's perf support.
Committer notes:
Add the install of tests/shell/coresight/*.sh to
tools/perf/Makefile.perf as we're starting to populate that dir.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-5-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add test tool to be driven by further test scripts. This tool is pure
arm64 ASM with no libc usage to ensure it is the same exact binary/code
every time so it can also be re-used for many uses. It just loops for a
given fixed number of loops.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-4-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This adds the initial build infrastructure (makefiles maintainers
information) for adding follow-on tests for CoreSight.
Committer notes:
Remove the installation of tests/shell/coresight/*.sh, as there are no
files there yet and thus, at this point, make install fails.
Use $(QUIET_CLEAN) to avoid having extraneous output in the 'make clean'
output.
Also use @$(MAKE) in tools/perf/tests/shell/coresight/Makefile as $(Q)
is not turning into @ when V=1 isn't used, i.e. in the default case it
is not being quiet.
The >/dev/null in the all for tools/perf/tests/shell/coresight/Makefile
is to avoid this:
make[4]: Nothing to be done for 'all'.
make[4]: Nothing to be done for 'all'.
make[4]: Nothing to be done for 'all'.
DESCEND plugins
GEN /tmp/build/perf/python/perf.so
make[4]: Nothing to be done for 'all'.
INSTALL trace_plugins
On !arm64 where nothing is done on the main target for
tools/perf/tests/shell/coresight/*/Makefile.
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: http://lore.kernel.org/lkml/20220909152803.2317006-3-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM defconfig updates from Arnd Bergmann:
"As usual, we enable newly added device drivers in the various
defconfig files.
This time, there is also a larger cleanup series that just reorders
symbols according to what 'make savedefconfig' outputs and then tracks
down the most common removed or renamed symbols on top"
* tag 'arm-defconfig-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (43 commits)
ARM: config: aspeed_g5: Enable PECI
ARM: configs: aspeed_g4: Remove appended DTB and ATAG
ARM: configs: aspeed: Refresh defconfigs
ARM: config: aspeed: Enable namespaces
ARM: configs: aspeed_g4: Enable IPV6 options
ARM: configs: aspeed_g4: Enable OCC and NBD drivers
ARM: configs: aspeed_g5: Enable MCTP stack
ARM: configs: aspeed_g5: Add PL2303 USB serial driver
ARM: configs: aspeed_g5: Add TPM TIS I2C driver
ARM: configs: aspeed_g5: Add mp5023 driver
ARM: configs: aspeed: Add support for USB flash drives
arm64: configs: Enable all PMUs provided by Arm
arm64: defconfig: Enable Synopsys DWC MSHC driver
arm64: defconfig: Enabled SC8180x configs
arm64: defconfig: Make TEGRA186_GPC_DMA built-in
arm64: tegra: Enable Tegra SPI & QSPI in deconfig
arm64: defconfig: enable newer Qualcomm SoC sound drivers
ARM: config: ixp4xx: Disable legacy EEPROM driver
arm64: defconfig: Enable devfreq cooling device
arm64: defconfig: enable ARCH_NXP
...
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Pull ARM updates from Russell King:
- Print an un-hashed userspace PC on undefined instruction exception
- Disable FDPIC ABI
- Remove redundant vfp_flush/release_thread functions
- Use raw_cpu_* rather than this_cpu_* in handle_bad_stack()
- Avoid needlessly long backtraces when show_regs() is called
- Fix an issue with stack traces through call_with_stack()
- Avoid stack traces saving a duplicate exception PC value
- Pass a void pointer to virt_to_page() in DMA mapping code
- Fix kasan maps for modules when CONFIG_KASAN_VMALLOC=n
- Show FDT region and page table level names in kernel page tables dump
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9246/1: dump: show page table level name
ARM: 9245/1: dump: show FDT region
ARM: 9242/1: kasan: Only map modules if CONFIG_KASAN_VMALLOC=n
ARM: 9240/1: dma-mapping: Pass (void *) to virt_to_page()
ARM: 9234/1: stacktrace: Avoid duplicate saving of exception PC value
ARM: 9233/1: stacktrace: Skip frame pointer boundary check for call_with_stack()
ARM: 9224/1: Dump the stack traces based on the parameter 'regs' of show_regs()
ARM: 9232/1: Replace this_cpu_* with raw_cpu_* in handle_bad_stack()
ARM: 9228/1: vfp: kill vfp_flush/release_thread()
ARM: 9226/1: disable FDPIC ABI
ARM: 9221/1: traps: print un-hashed user pc on undefined instruction
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The commit that added the new get_random_{u8,u16}() functions neglected
to update the code that clears the batches when bringing up a new CPU.
It also forgot a few comments and helper defines, so add those in too.
Fixes: 585cd5fe9f73 ("random: add 8-bit and 16-bit batches")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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The function hooks (ftrace) is a completely different subsystem from the
general tracing. It manages how to attach callbacks to most functions in
the kernel. It is also used by live kernel patching. It really is not part
of tracing, although tracing uses it.
Create a separate entry for FUNCTION HOOKS (FTRACE) to be separate from
tracing itself in the MAINTAINERS file.
Perhaps it should be moved out of the kernel/trace directory, but that's
for another time.
Link: https://lkml.kernel.org/r/20221006144439.459272364@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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The tracing git repo will no longer be housed in my personal git repo,
but instead live in trace/linux-trace.git.
Update the MAINTAINERS file appropriately.
Link: https://lkml.kernel.org/r/20221006144439.282193367@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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This adds a library of shell "code" to be shared and used by future
tests that target quality testing for Arm CoreSight support in perf
and the Linux kernel.
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Reviewed-by: James Clark <james.clark@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: http://lore.kernel.org/lkml/20220909152803.2317006-2-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The test is designed with a data structure with 64-byte alignment, it
has two fields "data1" and "data2", and other fields are reserved.
Using the "perf mem" command, we can record and report memory samples
for a self-contained workload with 1 second duration. If no samples are
obtained for the data structure "buf1", it reports failure; and by
checking the offset in structure "buf1", if the memory samples aren't
for the "data1" and "data2" fields, it means wrong data symbol parsing
and returns failure.
Committer testing:
[root@quaco ~]# grep -m1 "model name" /proc/cpuinfo
model name : Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz
[root@quaco ~]#
[root@quaco ~]# perf test -v "data symbol"
104: Test data symbol :
--- start ---
test child forked, pid 192318
Compiling test program...
Recording workload...
[ perf record: Woken up 2 times to write data ]
[ perf record: Captured and wrote 0.389 MB /tmp/__perf_test.perf.data.LIuQl (5570 samples) ]
Cleaning up files...
test child finished with 0
---- end ----
Test data symbol: Ok
[root@quaco ~]#
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Link: https://lore.kernel.org/r/20221006101039.47870-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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When synthesizing MMAP2 with build-id, it'd read the same file repeatedly as
it has no idea if it's done already. Maintain a dsos to check that and skip
the file access if possible.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220920222822.2171056-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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