linux/Documentation
Shivaprasad G Bhat 75b7c05ebf powerpc/papr_scm: Implement support for H_SCM_FLUSH hcall
Add support for ND_REGION_ASYNC capability if the device tree
indicates 'ibm,hcall-flush-required' property in the NVDIMM node.
Flush is done by issuing H_SCM_FLUSH hcall to the hypervisor.

If the flush request failed, the hypervisor is expected to
to reflect the problem in the subsequent nvdimm H_SCM_HEALTH call.

This patch prevents mmap of namespaces with MAP_SYNC flag if the
nvdimm requires an explicit flush[1].

References:
[1] https://github.com/avocado-framework-tests/avocado-misc-tests/blob/master/memory/ndctl.py.data/map_sync.c

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
[mpe: Use unsigned long / long instead of uint64_t/int64_t]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/161703936121.36.7260632399582101498.stgit@e1fbed493c87
2021-04-14 23:04:07 +10:00
..
ABI A handful of late-arriving documentation fixes, nothing all that notable. 2021-02-26 14:21:18 -08:00
accounting
admin-guide powerpc/bpf: Implement extended BPF on PPC32 2021-04-03 21:22:21 +11:00
arm Documentation: ARM: fix reference to DT format documentation 2021-01-28 15:37:43 -07:00
arm64
block block/bfq: update comments and default value in docs for fifo_expire 2021-03-02 11:25:38 -07:00
bpf
cdrom
core-api Merge branch 'akpm' (patches from Andrew) 2021-02-24 16:20:38 -08:00
cpu-freq
crypto
dev-tools kasan: clarify that only first bug is reported in HW_TAGS 2021-02-26 09:41:03 -08:00
devicetree dt-bindings/irq: Add compatible string for the JZ4760B 2021-03-09 08:45:11 +00:00
doc-guide docs: Document cross-referencing using relative path 2021-02-04 16:24:12 -07:00
driver-api Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
fault-injection
fb
features powerpc/mm: Revert "powerpc/mm: Remove DEBUG_VM_PGTABLE support on powerpc" 2021-03-31 16:46:55 +11:00
filesystems Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
firmware_class
firmware-guide Merge branch 'acpi-messages' 2021-02-15 17:04:53 +01:00
fpga
gpu drm: Use USB controller's DMA mask when importing dmabufs 2021-03-11 11:11:33 +01:00
hid
hwmon hwmon: add Texas Instruments TPS23861 driver 2021-02-12 07:02:55 -08:00
i2c i2c: testunit: add support for block process calls 2021-02-12 11:11:04 +01:00
ia64
ide
iio
infiniband
input Documentation: input: define ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams 2021-01-28 16:43:04 -07:00
isdn
kbuild Kbuild updates for v5.12 2021-02-25 10:17:31 -08:00
kernel-hacking docs: kernel-hacking: be more civil 2021-02-11 10:00:40 -07:00
leds
litmus-tests
livepatch
locking
m68k
maintainer
mhi
mips
misc-devices
netlabel
networking docs: networking: drop special stable handling 2021-03-03 08:49:08 -08:00
nios2
nvdimm
openrisc
parisc
PCI Documentation: PCI: Add PCI endpoint NTB function user guide 2021-02-23 14:15:45 -06:00
pcmcia
power It has been a relatively quiet cycle in docsland. 2021-02-22 10:57:46 -08:00
powerpc powerpc/papr_scm: Implement support for H_SCM_FLUSH hcall 2021-04-14 23:04:07 +10:00
process Merge git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2021-03-09 17:15:56 -08:00
RCU It has been a relatively quiet cycle in docsland. 2021-02-22 10:57:46 -08:00
riscv
s390
scheduler It has been a relatively quiet cycle in docsland. 2021-02-22 10:57:46 -08:00
scsi SCSI misc on 20210219 2021-02-22 10:24:58 -08:00
security Keyrings miscellany 2021-02-23 16:09:23 -08:00
sh
sound ALSA: jack: implement software jack injection via debugfs 2021-02-02 10:37:07 +01:00
sparc
sphinx docs: Enable usage of relative paths to docs on automarkup 2021-02-04 16:23:43 -07:00
sphinx-static
spi
staging
target
timers
trace Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
translations A handful of late-arriving documentation fixes, nothing all that notable. 2021-02-26 14:21:18 -08:00
usb
userspace-api Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
virt More fixes for ARM and x86. 2021-03-14 12:35:02 -07:00
vm mm/debug_vm_pgtable/basic: add validation for dirtiness after write protect 2021-02-24 13:38:27 -08:00
w1
watchdog
x86 Documentation/x86/boot.rst: Correct the example of SETUP_INDIRECT 2021-01-28 15:25:31 -07:00
xtensa
.gitignore
asm-annotations.rst
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py Fix unaesthetic indentation 2021-02-22 14:35:04 -07:00
COPYING-logo
docutils.conf
dontdiff
index.rst
Kconfig
logo.gif
Makefile kbuild: remove PYTHON variable 2021-02-01 10:37:19 +09:00
memory-barriers.txt
SubmittingPatches
watch_queue.rst