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From: Alexander Gordeev <agordeev@linux.ibm.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Heiko Carstens <hca@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Subject: [GIT PULL] s390 fixes for 7.1-rc5
Date: Fri, 22 May 2026 14:22:01 +0200	[thread overview]
Message-ID: <20260522122201.3111318Aac-agordeev@linux.ibm.com> (raw)

Hi Linus,

please pull s390 fixes for 7.1-rc5.

Thanks,
Alexander Gordeev

The following changes since commit b95e0e792822bad8fc9eb33ea3a90005e29e75e9:

  s390/mm: Fix phys_to_folio() usage in do_secure_storage_access() (2026-04-28 14:45:03 +0200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git tags/s390-7.1-3

for you to fetch changes up to 540f4a4f6ef806a28e794001bb4beac4840a6090:

  s390/topology: Use zero-based numbering for containing entities (2026-05-20 09:39:24 +0200)

----------------------------------------------------------------
s390 fixes for 7.1-rc5

- Fix PAI NNPA mismatch between counting and recording, where
  sampling reports twice the value

- Fix loss of PAI counter increments during recording on systems
  with many CPUs under heavy load, while counting is not affected

- On some supported machines, CHSC cannot access memory outside
  the DMA zone, causing CHSC command failures. Restore GFP_DMA
  flag when allocating memory for CHSC control blocks

- Align the numbering scheme for higher-level topology structures
  like socket, book, drawer with other hardware identifiers e.g.
  in sysfs, procfs and tools like lscpu

----------------------------------------------------------------
Alexandra Winter (1):
      s390/topology: Use zero-based numbering for containing entities

Peter Oberparleiter (1):
      s390/cio: Restore GFP_DMA for CHSC allocation

Thomas Richter (2):
      s390/pai: Disable duplicate read of kernel PAI counter value
      s390/pai: Fix missing PAI counter increments under heavy load

 arch/s390/kernel/perf_pai.c | 31 +++++++++++++++++++++----------
 arch/s390/kernel/topology.c | 10 +++++++---
 drivers/s390/cio/chsc.c     |  4 ++--
 drivers/s390/cio/chsc_sch.c | 20 ++++++++++----------
 drivers/s390/cio/scm.c      |  2 +-
 5 files changed, 41 insertions(+), 26 deletions(-)

             reply	other threads:[~2026-05-22 12:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-22 12:22 Alexander Gordeev [this message]
2026-05-22 14:25 ` pr-tracker-bot

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