linux.git/tools/perf, branch v6.9-rc2

Merge tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2024-03-22T17:41:13+00:00

Pull RISC-V updates from Palmer Dabbelt:

 - Support for various vector-accelerated crypto routines

 - Hibernation is now enabled for portable kernel builds

 - mmap_rnd_bits_max is larger on systems with larger VAs

 - Support for fast GUP

 - Support for membarrier-based instruction cache synchronization

 - Support for the Andes hart-level interrupt controller and PMU

 - Some cleanups around unaligned access speed probing and Kconfig
   settings

 - Support for ACPI LPI and CPPC

 - Various cleanus related to barriers

 - A handful of fixes

* tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (66 commits)
  riscv: Fix syscall wrapper for >word-size arguments
  crypto: riscv - add vector crypto accelerated AES-CBC-CTS
  crypto: riscv - parallelize AES-CBC decryption
  riscv: Only flush the mm icache when setting an exec pte
  riscv: Use kcalloc() instead of kzalloc()
  riscv/barrier: Add missing space after ','
  riscv/barrier: Consolidate fence definitions
  riscv/barrier: Define RISCV_FULL_BARRIER
  riscv/barrier: Define __{mb,rmb,wmb}
  RISC-V: defconfig: Enable CONFIG_ACPI_CPPC_CPUFREQ
  cpufreq: Move CPPC configs to common Kconfig and add RISC-V
  ACPI: RISC-V: Add CPPC driver
  ACPI: Enable ACPI_PROCESSOR for RISC-V
  ACPI: RISC-V: Add LPI driver
  cpuidle: RISC-V: Move few functions to arch/riscv
  riscv: Introduce set_compat_task() in asm/compat.h
  riscv: Introduce is_compat_thread() into compat.h
  riscv: add compile-time test into is_compat_task()
  riscv: Replace direct thread flag check with is_compat_task()
  riscv: Improve arch_get_mmap_end() macro
  ...

Merge tag 'net-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2024-03-21T21:50:39+00:00

Pull networking fixes from Jakub Kicinski:
 "Including fixes from CAN, netfilter, wireguard and IPsec.

  I'd like to highlight [ lowlight? - Linus ] Florian W stepping down as
  a netfilter maintainer due to constant stream of bug reports. Not sure
  what we can do but IIUC this is not the first such case.

  Current release - regressions:

   - rxrpc: fix use of page_frag_alloc_align(), it changed semantics and
     we added a new caller in a different subtree

   - xfrm: allow UDP encapsulation only in offload modes

  Current release - new code bugs:

   - tcp: fix refcnt handling in __inet_hash_connect()

   - Revert "net: Re-use and set mono_delivery_time bit for userspace
     tstamp packets", conflicted with some expectations in BPF uAPI

  Previous releases - regressions:

   - ipv4: raw: fix sending packets from raw sockets via IPsec tunnels

   - devlink: fix devlink's parallel command processing

   - veth: do not manipulate GRO when using XDP

   - esp: fix bad handling of pages from page_pool

  Previous releases - always broken:

   - report RCU QS for busy network kthreads (with Paul McK's blessing)

   - tcp/rds: fix use-after-free on netns with kernel TCP reqsk

   - virt: vmxnet3: fix missing reserved tailroom with XDP

  Misc:

   - couple of build fixes for Documentation"

* tag 'net-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (59 commits)
  selftests: forwarding: Fix ping failure due to short timeout
  MAINTAINERS: step down as netfilter maintainer
  netfilter: nf_tables: Fix a memory leak in nf_tables_updchain
  net: dsa: mt7530: fix handling of all link-local frames
  net: dsa: mt7530: fix link-local frames that ingress vlan filtering ports
  bpf: report RCU QS in cpumap kthread
  net: report RCU QS on threaded NAPI repolling
  rcu: add a helper to report consolidated flavor QS
  ionic: update documentation for XDP support
  lib/bitmap: Fix bitmap_scatter() and bitmap_gather() kernel doc
  netfilter: nf_tables: do not compare internal table flags on updates
  netfilter: nft_set_pipapo: release elements in clone only from destroy path
  octeontx2-af: Use separate handlers for interrupts
  octeontx2-pf: Send UP messages to VF only when VF is up.
  octeontx2-pf: Use default max_active works instead of one
  octeontx2-pf: Wait till detach_resources msg is complete
  octeontx2: Detect the mbox up or down message via register
  devlink: fix port new reply cmd type
  tcp: Clear req->syncookie in reqsk_alloc().
  net/bnx2x: Prevent access to a freed page in page_pool
  ...

net: remove {revc,send}msg_copy_msghdr() from exports

2024-03-14T23:48:53+00:00

The only user of these was io_uring, and it's not using them anymore.
Make them static and remove them from the socket header file.

Signed-off-by: Jens Axboe 
Link: https://lore.kernel.org/r/1b6089d3-c1cf-464a-abd3-b0f0b6bb2523@kernel.dk
Signed-off-by: Jakub Kicinski

riscv: andes: Support specifying symbolic firmware and hardware raw events

2024-03-12T14:13:19+00:00

Add the Andes AX45 JSON files that allows specifying symbolic event
names for the raw PMU events.

Signed-off-by: Locus Wei-Han Chen 
Reviewed-by: Yu Chien Peter Lin 
Reviewed-by: Charles Ci-Jyun Wu 
Reviewed-by: Leo Yu-Chi Liang 
Tested-by: Lad Prabhakar 
Acked-by: Atish Patra 
Acked-by: Ian Rogers 
Link: https://lore.kernel.org/r/20240222083946.3977135-11-peterlin@andestech.com
Signed-off-by: Palmer Dabbelt

perf annotate: Add comments in the data structures

2024-03-07T04:25:48+00:00

Reviewed-by: Ian Rogers 
Reviewed-by: Arnaldo Carvalho de Melo 
Tested-by: Arnaldo Carvalho de Melo 
Cc: Andi Kleen 
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240304230815.1440583-5-namhyung@kernel.org

perf annotate: Remove sym_hist.addr[] array

2024-03-07T04:25:36+00:00

It's not used anymore and the code is coverted to use a hash map.  Now
sym_hist has a static size, so no need to have sizeof_sym_hist in the
struct annotated_source.

Reviewed-by: Ian Rogers 
Reviewed-by: Arnaldo Carvalho de Melo 
Tested-by: Arnaldo Carvalho de Melo 
Cc: Andi Kleen 
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240304230815.1440583-4-namhyung@kernel.org

perf annotate: Calculate instruction overhead using hashmap

2024-03-07T04:25:20+00:00

Use annotated_source.samples hashmap instead of addr array in the
struct sym_hist.

Reviewed-by: Ian Rogers 
Reviewed-by: Arnaldo Carvalho de Melo 
Tested-by: Arnaldo Carvalho de Melo 
Cc: Andi Kleen 
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240304230815.1440583-3-namhyung@kernel.org

perf annotate: Add a hashmap for symbol histogram

2024-03-07T04:24:55+00:00

Now symbol histogram uses an array to save per-offset sample counts.
But it wastes a lot of memory if the symbol has a few samples only.
Add a hashmap to save values only for actual samples.

For now, it has duplicate histogram (one in the existing array and
another in the new hash map).  Once it can convert to use the hash
in all places, we can get rid of the array later.

Reviewed-by: Ian Rogers 
Reviewed-by: Arnaldo Carvalho de Melo 
Tested-by: Arnaldo Carvalho de Melo 
Cc: Andi Kleen 
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240304230815.1440583-2-namhyung@kernel.org

perf threads: Reduce table size from 256 to 8

2024-03-04T06:52:13+00:00

The threads data structure is an array of hashmaps, previously
rbtrees. The two levels allows for a fixed outer array where access is
guarded by rw_semaphores. Commit 91e467bc568f ("perf machine: Use
hashtable for machine threads") sized the outer table at 256 entries
to avoid future scalability problems, however, this means the threads
struct is sized at 30,720 bytes. As the hashmaps allow O(1) access for
the common find/insert/remove operations, lower the number of entries
to 8. This reduces the size overhead to 960 bytes.

Signed-off-by: Ian Rogers 
Acked-by: Namhyung Kim 
Cc: Yang Jihong 
Cc: Oliver Upton 
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240301053646.1449657-8-irogers@google.com

perf threads: Switch from rbtree to hashmap

2024-03-04T06:52:04+00:00

The rbtree provides a sorting on entries but this is unused. Switch to
using hashmap for O(1) rather than O(log n) find/insert/remove
complexity.

Signed-off-by: Ian Rogers 
Acked-by: Namhyung Kim 
Cc: Yang Jihong 
Cc: Oliver Upton 
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240301053646.1449657-7-irogers@google.com