Merge tag 's390-6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Alexander Gordeev:

- Select config option KASAN_VMALLOC if KASAN is enabled

- Select co

Merge tag 's390-6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Alexander Gordeev:

- Select config option KASAN_VMALLOC if KASAN is enabled

- Select config option VMAP_STACK unconditionally

- Implement arch_atomic_inc() / arch_atomic_dec() functions which
result in a single instruction if compiled for z196 or newer
architectures

- Make layering between atomic.h and atomic_ops.h consistent

- Comment s390 preempt_count implementation

- Remove pre MARCH_HAS_Z196_FEATURES preempt count implementation

- GCC uses the number of lines of an inline assembly to calculate
number of instructions and decide on inlining. Therefore remove
superfluous new lines from a couple of inline assemblies.

- Provide arch_atomic_*_and_test() implementations that allow the
compiler to generate slightly better code.

- Optimize __preempt_count_dec_and_test()

- Remove __bootdata annotations from declarations in header files

- Add missing include of <linux/smp.h> in abs_lowcore.h to provide
declarations for get_cpu() and put_cpu() used in the code

- Fix suboptimal kernel image base when running make kasan.config

- Remove huge_pte_none() and huge_pte_none_mostly() as are identical to
the generic variants

- Remove unused PAGE_KERNEL_EXEC, SEGMENT_KERNEL_EXEC, and
REGION3_KERNEL_EXEC defines

- Simplify noexec page protection handling and change the page, segment
and region3 protection definitions automatically if the instruction
execution-protection facility is not available

- Save one instruction and prefer EXRL instruction over EX in string,
xor_*(), amode31 and other functions

- Create /dev/diag misc device to fetch diagnose specific information
from the kernel and provide it to userspace

- Retrieve electrical power readings using DIAGNOSE 0x324 ioctl

- Make ccw_device_get_ciw() consistent and use array indices instead of
pointer arithmetic

- s390/qdio: Move memory alloc/pointer arithmetic for slib and sl into
one place

- The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that in s390 code

- Add missing TLB range adjustment in pud_free_tlb()

- Improve topology setup by adding early polarization detection

- Fix length checks in codepage_convert() function

- The generic bitops implementation is nearly identical to the s390
one. Switch to the generic variant and decrease a bit the kernel
image size

- Provide an optimized arch_test_bit() implementation which makes use
of flag output constraint. This generates slightly better code

- Provide memory topology information obtanied with DIAGNOSE 0x310
using ioctl.

- Various other small improvements, fixes, and cleanups

Also, some changes came in through a merge of 'pci-device-recovery'
branch:

- Add PCI error recovery status mechanism

- Simplify and document debug_next_entry() logic

- Split private data allocation and freeing out of debug file open()
and close() operations

- Add debug_dump() function that gets a textual representation of a
debug info (e.g. PCI recovery hardware error logs)

- Add formatted content of pci_debug_msg_id to the PCI report

* tag 's390-6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (48 commits)
s390/futex: Fix FUTEX_OP_ANDN implementation
s390/diag: Add memory topology information via diag310
s390/bitops: Provide optimized arch_test_bit()
s390/bitops: Switch to generic bitops
s390/ebcdic: Fix length decrement in codepage_convert()
s390/ebcdic: Fix length check in codepage_convert()
s390/ebcdic: Use exrl instead of ex
s390/amode31: Use exrl instead of ex
s390/stackleak: Use exrl instead of ex in __stackleak_poison()
s390/lib: Use exrl instead of ex in xor functions
s390/topology: Improve topology detection
s390/tlb: Add missing TLB range adjustment
s390/pkey: Constify 'struct bin_attribute'
s390/sclp: Constify 'struct bin_attribute'
s390/pci: Constify 'struct bin_attribute'
s390/ipl: Constify 'struct bin_attribute'
s390/crypto/cpacf: Constify 'struct bin_attribute'
s390/qdio: Move memory alloc/pointer arithmetic for slib and sl into one place
s390/cio: Use array indices instead of pointer arithmetic
s390/qdio: Rename feature flag aif_osa to aif_qdio
...

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Merge branch 'pci-device-recovery' into features

Niklas Schnelle says:

===================
This patch series enhances the introspectability of the PCI device
recovery for firmware. Until now when L

Merge branch 'pci-device-recovery' into features

Niklas Schnelle says:

===================
This patch series enhances the introspectability of the PCI device
recovery for firmware. Until now when Linux performs recovery in
response to a firmware error report. For example, until now firmware
debug data would have no indication if the recovery was successfull or
if it failed, for example due to KVM pass-through.

Improve on this by reporting recovery status as well as some debug
information such as device driver name and s390dbf/pci_msg/sprintf logs
via the SCLP Write Event Data Action Qualifier 2 (Log Data provided)
mechanism.
===================

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

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s390/pci: Add pci_msg debug view to PCI report

Using the newly introduced debug_dump() mechanism add formatted content
of pci_debug_msg_id to the PCI report. The formatting is based on the
existing

s390/pci: Add pci_msg debug view to PCI report

Using the newly introduced debug_dump() mechanism add formatted content
of pci_debug_msg_id to the PCI report. The formatting is based on the
existing sprintf format but removes caller pointer and area index and
adds an column header. This will allow the platform to collect this log
data together with hardware errors. This sets the reverse flag such that
the newest log entries get added to the PCI report even if not all debug
log entries fit.

Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Co-developed-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

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s390/pci: Report PCI error recovery results via SCLP

Add a mechanism with which the status of PCI error recovery runs
is reported to the platform. Together with the status supply additional
informat

s390/pci: Report PCI error recovery results via SCLP

Add a mechanism with which the status of PCI error recovery runs
is reported to the platform. Together with the status supply additional
information that may aid in problem determination.

Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

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