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Date:   Mon, 14 Dec 2020 12:18:23 +0100
From:   Heiko Carstens <hca@...ux.ibm.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [GIT PULL] s390 updates for 5.11 merge window

Hi Linus,

please pull s390 updates for the 5.11 merge window.

Note that the diffstat summary when merging this will look slightly different
than the one generated by 'git request-pull' below:

107 files changed, 1268 insertions(+), 1993 deletions(-)

This is because I had to merge our fixes branch, which contains commits which
are already in 5.10, twice into our features branch to resolve dependencies.

There is also "mm: simplify follow_pte{,pmd}" sitting in Andrew's patch
collection which will break s390 compilation due to a conflict with a commit
in this pull request.

However Andrew already has a fixup patch for that, so I guess this problem will
be solved "automatically". That is: Andrew handles it :)

This is the fixup patch:
https://www.ozlabs.org/~akpm/mmotm/broken-out/mm-simplify-follow_ptepmd-fix.patch

Thanks,
Heiko

The following changes since commit f8394f232b1eab649ce2df5c5f15b0e528c92091:

  Linux 5.10-rc3 (2020-11-08 16:10:16 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git tags/s390-5.11-1

for you to fetch changes up to 343dbdb7cb8997a2cb0fd804d6563b8a6de8d49b:

  s390/mm: add support to allocate gigantic hugepages using CMA (2020-12-10 21:11:01 +0100)

----------------------------------------------------------------
- Add support for the hugetlb_cma command line option to allocate gigantic
  hugepages using CMA:

- Add arch_get_random_long() support.

- Add ap bus userspace notifications.

- Increase default size of vmalloc area to 512GB and otherwise let it increase
  dynamically by the size of physical memory. This should fix all occurrences
  where the vmalloc area was not large enough.

- Completely get rid of set_fs() (aka select SET_FS) and rework address space
  handling while doing that; making address space handling much more simple.

- Reimplement getcpu vdso syscall in C.

- Add support for extended SCLP responses (> 4k). This allows e.g. to handle
  also potential large system configurations.

- Simplify KASAN by removing 3-level page table support and only supporting
  4-levels from now on.

- Improve debug-ability of the kernel decompressor code, which now prints also
  stack traces and symbols in case of problems to the console.

- Remove more power management leftovers.

- Other various fixes and improvements all over the place.

----------------------------------------------------------------
Alexander Gordeev (2):
      s390/vmem: remove redundant check
      s390/vmem: make variable and function names consistent

Christian Borntraeger (1):
      s390/trng: set quality to 1024

Daniel Vetter (1):
      s390/pci: remove races against pte updates

Gerald Schaefer (1):
      s390/mm: add support to allocate gigantic hugepages using CMA

Harald Freudenberger (3):
      s390/ap: ap bus userspace notifications for some bus conditions
      s390/zcrypt/pkey: introduce zcrypt_wait_api_operational() function
      s390/crypto: add arch_get_random_long() support

Heiko Carstens (15):
      s390: fix system call exit path
      s390/mm: extend default vmalloc area size to 512GB
      s390/mm: let vmalloc area size depend on physical memory size
      s390: update defconfigs
      s390/mm: remove unused clear_user_asce()
      Merge branch 'fixes' into features
      s390: add separate program check exit path
      init/Kconfig: make COMPILE_TEST depend on !S390
      Merge branch 'fixes' into features
      s390/mm: remove set_fs / rework address space handling
      s390/mm: use invalid asce instead of kernel asce
      s390/mm: add debug user asce support
      s390/vdso: reimplement getcpu vdso syscall
      s390/vdso: add missing prototypes for vdso functions
      s390/mm: use invalid asce for user space when switching to init_mm

Julian Wiedmann (3):
      s390/prng: let misc_register() add the prng sysfs attributes
      s390/stp: let subsys_system_register() sysfs attributes
      s390/ap: let bus_register() add the AP bus sysfs attributes

Mauro Carvalho Chehab (1):
      s390/cio: fix kernel-doc markups in cio driver.

Niklas Schnelle (2):
      s390/pci: inform when missing required facilities
      s390/Kconfig: default PCI_NR_FUNCTIONS to 512

Philipp Rudo (2):
      s390/kexec_file: fix diag308 subcode when loading crash kernel
      s390/boot: add build-id to decompressor

Qinglang Miao (1):
      s390/cio: fix use-after-free in ccw_device_destroy_console

Sumanth Korikkar (3):
      s390/sclp: use memblock for early read cpu info
      s390/sclp: avoid copy of sclp_info_sccb
      s390/sclp: provide extended sccb support

Sven Schnelle (4):
      s390: fix fpu restore in entry.S
      s390/idle: add missing mt_cycles calculation
      s390/idle: fix accounting with machine checks
      s390/smp: perform initial CPU reset also for SMT siblings

Thomas Richter (1):
      s390/cpum_sf.c: fix file permission for cpum_sfb_size

Vasily Gorbik (18):
      s390/head: set io/ext handlers to disabled wait
      s390/udelay: make it work for the early code
      s390: remove unused s390_base_ext_handler
      s390/kasan: remove 3-level paging support
      s390: make sure vmemmap is top region table entry aligned
      s390/decompressor: fix build warning
      s390/kasan: avoid confusing naming
      s390/kasan: remove obvious parameter with the only possible value
      s390/kasan: make kasan header self-contained
      s390/kasan: move memory needs estimation into a function
      s390/early: rewrite program parameter setup in C
      s390: unify identity mapping limits handling
      s390/ftrace: assume -mhotpatch or -mrecord-mcount always available
      s390/decompressor: add decompressor_printk
      s390/decompressor: correct some asm symbols annotations
      s390/decompressor: add symbols support
      s390/decompressor: add stacktrace support
      s390/decompressor: print cmdline and BEAR on pgm_check

Vineeth Vijayan (10):
      s390/zfcp: remove pm support from zfcp driver
      s390/dasd: remove unused pm related functions
      s390: remove pm support from console drivers
      s390/cio: remove pm support from eadm-sch drivers
      s390/tape: remove unsupported PM functions
      s390/vmur: remove unused pm related functions
      s390/cio: remove pm support from chsc subchannel driver
      s390/cio: remove pm support from IO subchannel drivers
      s390/cio: remove pm support from css-bus driver
      s390/cio: remove pm support from ccw bus driver

 arch/s390/Kconfig                           |   6 +-
 arch/s390/Kconfig.debug                     |   8 +
 arch/s390/Makefile                          |   2 +-
 arch/s390/boot/boot.h                       |  18 +-
 arch/s390/boot/compressed/.gitignore        |   1 +
 arch/s390/boot/compressed/Makefile          |  26 ++-
 arch/s390/boot/compressed/decompressor.h    |   4 +-
 arch/s390/boot/compressed/vmlinux.lds.S     |   9 +
 arch/s390/boot/head.S                       |  32 +++-
 arch/s390/boot/head_kdump.S                 |   8 +-
 arch/s390/boot/ipl_parm.c                   |  49 ++---
 arch/s390/boot/kaslr.c                      |  33 +---
 arch/s390/boot/mem_detect.c                 |  13 +-
 arch/s390/boot/pgm_check_info.c             | 224 +++++++++++++++--------
 arch/s390/boot/startup.c                    |  70 +++++++-
 arch/s390/configs/debug_defconfig           |   2 +
 arch/s390/crypto/arch_random.c              | 110 +++++++++++-
 arch/s390/crypto/prng.c                     |  53 ++----
 arch/s390/include/asm/archrandom.h          |   5 +-
 arch/s390/include/asm/ccwdev.h              |  12 +-
 arch/s390/include/asm/cio.h                 |   2 +-
 arch/s390/include/asm/delay.h               |   1 +
 arch/s390/include/asm/ftrace.h              |  31 ++--
 arch/s390/include/asm/futex.h               |   6 -
 arch/s390/include/asm/kasan.h               |  37 +++-
 arch/s390/include/asm/lowcore.h             |   4 +-
 arch/s390/include/asm/mmu_context.h         |  37 +---
 arch/s390/include/asm/pgtable.h             |  13 +-
 arch/s390/include/asm/processor.h           |  13 +-
 arch/s390/include/asm/ptrace.h              |   1 +
 arch/s390/include/asm/sclp.h                |   7 +-
 arch/s390/include/asm/setup.h               |   6 +-
 arch/s390/include/asm/thread_info.h         |   2 +-
 arch/s390/include/asm/timex.h               |   7 +
 arch/s390/include/asm/uaccess.h             |  22 +--
 arch/s390/include/asm/vdso.h                |  25 +--
 arch/s390/kernel/asm-offsets.c              |  17 +-
 arch/s390/kernel/base.S                     |  22 ---
 arch/s390/kernel/early.c                    |   4 +-
 arch/s390/kernel/entry.S                    | 145 ++++++++-------
 arch/s390/kernel/entry.h                    |   1 -
 arch/s390/kernel/ftrace.c                   |  63 ++-----
 arch/s390/kernel/head64.S                   |   7 +-
 arch/s390/kernel/mcount.S                   |   8 -
 arch/s390/kernel/perf_cpum_sf.c             |   2 +-
 arch/s390/kernel/process.c                  |  14 --
 arch/s390/kernel/setup.c                    |  50 +++---
 arch/s390/kernel/smp.c                      |  32 +---
 arch/s390/kernel/time.c                     |  44 ++---
 arch/s390/kernel/vdso.c                     |  58 +-----
 arch/s390/kernel/vdso64/Makefile            |   5 +-
 arch/s390/kernel/vdso64/getcpu.S            |  31 ----
 arch/s390/kernel/vdso64/getcpu.c            |  21 +++
 arch/s390/kernel/vdso64/vdso.h              |  14 ++
 arch/s390/kernel/vdso64/vdso64.lds.S        |   1 -
 arch/s390/kernel/vdso64/vdso64_generic.c    |   1 +
 arch/s390/kernel/vdso64/vdso_user_wrapper.S |   1 +
 arch/s390/kernel/vmlinux.lds.S              |   3 +-
 arch/s390/lib/delay.c                       |  13 ++
 arch/s390/lib/uaccess.c                     | 105 +++--------
 arch/s390/mm/dump_pagetables.c              |   2 +-
 arch/s390/mm/fault.c                        |  29 +--
 arch/s390/mm/init.c                         |  12 +-
 arch/s390/mm/kasan_init.c                   |  93 ++++------
 arch/s390/mm/pgalloc.c                      |  13 +-
 arch/s390/mm/vmem.c                         |  38 ++--
 arch/s390/pci/pci.c                         |   4 +-
 arch/s390/pci/pci_mmio.c                    | 104 ++++++-----
 arch/s390/purgatory/head.S                  |   9 +-
 drivers/char/hw_random/s390-trng.c          |   7 +-
 drivers/s390/block/dasd.c                   |  93 +---------
 drivers/s390/block/dasd_eckd.c              |  94 ----------
 drivers/s390/block/dasd_fba.c               |   3 -
 drivers/s390/block/dasd_int.h               |  10 --
 drivers/s390/char/con3215.c                 |  85 +--------
 drivers/s390/char/con3270.c                 |   1 -
 drivers/s390/char/raw3270.c                 |  78 +-------
 drivers/s390/char/raw3270.h                 |   1 -
 drivers/s390/char/sclp.h                    |  10 +-
 drivers/s390/char/sclp_cmd.c                |  16 +-
 drivers/s390/char/sclp_early.c              |  59 ++++---
 drivers/s390/char/sclp_early_core.c         |  13 +-
 drivers/s390/char/tape.h                    |   1 -
 drivers/s390/char/tape_34xx.c               |   1 -
 drivers/s390/char/tape_3590.c               |   1 -
 drivers/s390/char/tape_core.c               |  50 ------
 drivers/s390/char/vmur.c                    |  24 ---
 drivers/s390/cio/chsc_sch.c                 |  29 ---
 drivers/s390/cio/cmf.c                      |   5 -
 drivers/s390/cio/css.c                      | 130 +-------------
 drivers/s390/cio/css.h                      |  10 --
 drivers/s390/cio/device.c                   | 265 +---------------------------
 drivers/s390/cio/device.h                   |   1 -
 drivers/s390/cio/device_fsm.c               |   6 -
 drivers/s390/cio/eadm_sch.c                 |  13 --
 drivers/s390/cio/io_sch.h                   |   1 -
 drivers/s390/crypto/ap_bus.c                | 213 ++++++++++++++++++----
 drivers/s390/crypto/ap_bus.h                |  12 ++
 drivers/s390/crypto/pkey_api.c              |  15 ++
 drivers/s390/crypto/zcrypt_api.c            |  66 +++++++
 drivers/s390/crypto/zcrypt_api.h            |   2 +
 drivers/s390/scsi/zfcp_ccw.c                |  57 +-----
 drivers/s390/scsi/zfcp_dbf.c                |  25 ---
 drivers/s390/scsi/zfcp_def.h                |   1 -
 drivers/s390/scsi/zfcp_ext.h                |   1 -
 init/Kconfig                                |   2 +-
 lib/Kconfig.kasan                           |   9 -
 scripts/recordmcount.pl                     |   3 -
 108 files changed, 1279 insertions(+), 1999 deletions(-)
 delete mode 100644 arch/s390/kernel/vdso64/getcpu.S
 create mode 100644 arch/s390/kernel/vdso64/getcpu.c
 create mode 100644 arch/s390/kernel/vdso64/vdso.h

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