[GIT PULL] libnvdimm for 4.8

[Williams, Dan J]

Hi Linus, please pull from:

+AKA- git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm tags/libnvdimm-for-4.8

...to receive the libnvdimm update for 4.8.

This has been in -next with the following reported conflicts:

1/ The +AF8AXw-pmem address space has been removed. +AKA-New usages of +AF8AXw-pmem
came in through the DM tree this cycle.

2/ A minor conflict in the pmem driver with the device+AF8-add+AF8-disk()
changes that came in through the block layer.

3/ The removal of pcommit collided with new enabling in KVM. +AKA-At the
time of writing you have not yet merged the KVM tree.

A test resolution for 1 and 2 is available here:

+AKA- git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm libnvdimm-for-4.8-merge

Stephen's resolution of the KVM conflict is available here:

+AKA- https://lkml.org/lkml/2016/7/25/11

The pcommit removal in arch/x86/ has an ack from Ingo.

---

The following changes since commit a72255983f12f31f0c8d8275fb1a781546cfacb7:

+AKA- nfit: make DIMM DSMs optional (2016-07-19 12:32:39 -0700)

are available in the git repository at:

+AKA- git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm tags/libnvdimm-for-4.8

for you to fetch changes up to 0606263f24f3d64960de742c55894190b5df903b:

+AKA- Merge branch 'for-4.8/libnvdimm' into libnvdimm-for-next (2016-07-24 08:05:44 -0700)

----------------------------------------------------------------
libnvdimm for 4.8

1/ Replace pcommit with ADR / directed-flushing:
+AKAAoACg-The pcommit instruction, which has not shipped on any product, is
+AKAAoACg-deprecated. Instead, the requirement is that platforms implement either
+AKAAoACg-ADR, or provide one or more flush addresses per nvdimm. ADR
+AKAAoACg-(Asynchronous DRAM Refresh) flushes data in posted write buffers to the
+AKAAoACg-memory controller on a power-fail event. Flush addresses are defined in
+AKAAoACg-ACPI 6.x as an NVDIMM Firmware Interface Table (NFIT) sub-structure:
+AKAAoACgACI-Flush Hint Address Structure+ACI-. A flush hint is an mmio address that
+AKAAoACg-when written and fenced assures that all previous posted writes
+AKAAoACg-targeting a given dimm have been flushed to media.

2/ On-demand ARS (address range scrub):
+AKAAoACg-Linux uses the results of the ACPI ARS commands to track bad blocks
+AKAAoACg-in pmem devices.+AKAAoA-When latent errors are detected we re-scrub the media
+AKAAoACg-to refresh the bad block list, userspace can also request a re-scrub at
+AKAAoACg-any time.

3/ Support for the Microsoft DSM (device specific method) command format.

4/ Support for EDK2/OVMF virtual disk device memory ranges.

5/ Various fixes and cleanups across the subsystem.

----------------------------------------------------------------
Dan Williams (32):
+AKAAoACgAKAAoACg-libnvdimm: use devm+AF8-add+AF8-action+AF8-or+AF8-reset()
+AKAAoACgAKAAoACg-libnvdimm: IS+AF8-ERR() usage cleanup
+AKAAoACgAKAAoACg-tools/testing/nvdimm: add pfn device dependency
+AKAAoACgAKAAoACg-libnvdimm, pmem: allow nfit+AF8-test to override pmem+AF8-direct+AF8-access()
+AKAAoACgAKAAoACg-tools/testing/nvdimm: replace CONFIG+AF8-DMA+AF8-CMA dependency with vmalloc()
+AKAAoACgAKAAoACg-tools/testing/nvdimm: remove +AF8AXw-wrap+AF8-devm+AF8-memremap+AF8-pages placeholder
+AKAAoACgAKAAoACg-nfit: always associate flush hints
+AKAAoACgAKAAoACg-nfit: don't override return value of nfit+AF8-mem+AF8-init
+AKAAoACgAKAAoACg-libnvdimm: introduce devm+AF8-nvdimm+AF8-memremap(), convert nfit+AF8-spa+AF8-map() users
+AKAAoACgAKAAoACg-libnvdimm, nfit: remove nfit+AF8-spa+AF8-map() infrastructure
+AKAAoACgAKAAoACg-libnvdimm, nfit: move flush hint mapping to region-device driver-data
+AKAAoACgAKAAoACg-tools/testing/nvdimm: simulate multiple flush hints per-dimm
+AKAAoACgAKAAoACg-libnvdimm: keep region data alive over namespace removal
+AKAAoACgAKAAoACg-libnvdimm: introduce nvdimm+AF8-flush() and nvdimm+AF8-has+AF8-flush()
+AKAAoACgAKAAoACg-libnvdimm: cycle flush hints
+AKAAoACgAKAAoACg-libnvdimm, pmem: use REQ+AF8-FUA, REQ+AF8-FLUSH for nvdimm+AF8-flush()
+AKAAoACgAKAAoACg-libnvdimm, pmem: flush posted-write queues on shutdown
+AKAAoACgAKAAoACg-fs/dax: remove wmb+AF8-pmem()
+AKAAoACgAKAAoACg-libnvdimm, pmem: use nvdimm+AF8-flush() for namespace I/O writes
+AKAAoACgAKAAoACg-pmem: kill wmb+AF8-pmem()
+AKAAoACgAKAAoACg-pmem: kill +AF8AXw-pmem address space
+AKAAoACgAKAAoACg-tools/testing/nvdimm: add virtual ramdisk range
+AKAAoACgAKAAoACg-tools/testing/nvdimm: add manufacturing+AF8Aew-date+AHw-location+AH0- dimm properties
+AKAAoACgAKAAoACg-nfit: fix +AF8-FIT evaluation memory leak +- use after free
+AKAAoACgAKAAoACg-nfit: cleanup acpi+AF8-nfit+AF8-init calling convention
+AKAAoACgAKAAoACg-libnvdimm: move -+AD4-module to struct nvdimm+AF8-bus+AF8-descriptor
+AKAAoACgAKAAoACg-nfit, tools/testing/nvdimm/: unify shutdown paths
+AKAAoACgAKAAoACg-Revert +ACI-KVM: x86: add pcommit support+ACI-
+AKAAoACgAKAAoACg-x86/insn: remove pcommit
+AKAAoACgAKAAoACg-libnvdimm: register nvdimm+AF8-bus devices with an nd+AF8-bus driver
+AKAAoACgAKAAoACg-nfit: move to nfit/ sub-directory
+AKAAoACgAKAAoACg-Merge branch 'for-4.8/libnvdimm' into libnvdimm-for-next

Johannes Thumshirn (1):
+AKAAoACgAKAAoACg-libnvdimm: initialize struct blk+AF8-integrity with 0

Lee, Chun-Yi (1):
+AKAAoACgAKAAoACg-acpi, nfit: treat virtual ramdisk SPA as pmem region

Markus Elfring (1):
+AKAAoACgAKAAoACg-libnvdimm-btt: Delete an unnecessary check before the function call +ACIAXwBf-nd+AF8-device+AF8-register+ACI-

Sajjan, Vikas C (2):
+AKAAoACgAKAAoACg-nfit: use devm+AF8-add+AF8-action+AF8-or+AF8-reset()
+AKAAoACgAKAAoACg-dax: use devm+AF8-add+AF8-action+AF8-or+AF8-reset()

Vishal Verma (4):
+AKAAoACgAKAAoACg-libnvdimm, btt: update the usage section in Documentation
+AKAAoACgAKAAoACg-pmem: clarify a debug print in pmem+AF8-clear+AF8-poison
+AKAAoACgAKAAoACg-nfit, libnvdimm: allow an ARS scrub to be triggered on demand
+AKAAoACgAKAAoACg-nfit: do an ARS scrub on hitting a latent media error

stuart hayes (1):
+AKAAoACgAKAAoACg-nfit: add Microsoft NVDIMM DSM command set to white list

+AKA-Documentation/filesystems/Locking+AKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAHwAoACgAKA-2 +--
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+AKA-drivers/acpi/nfit/mce.c+AKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAfACgAKA-89 +-+-+-
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+AKA-drivers/nvdimm/dimm+AF8-devs.c+AKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAfACgAKAAoA-5 +--
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+AKA-tools/testing/nvdimm/test/nfit+AF8-test.h+AKAAoACgAKAAoACgAKAAoACgAKAAoACgAKAAoAB8AKAAoACg-2 +-
+AKA-59 files changed, 1369 insertions(+-), 1009 deletions(-)
+AKA-create mode 100644 drivers/acpi/nfit/Kconfig
+AKA-create mode 100644 drivers/acpi/nfit/Makefile
+AKA-rename drivers/acpi/+AHs-nfit.c +AD0APg- nfit/core.c+AH0- (87+ACU-)
+AKA-create mode 100644 drivers/acpi/nfit/mce.c
+AKA-rename drivers/acpi/+AHs- +AD0APg- nfit+AH0-/nfit.h (82+ACU-)
+AKA-create mode 100644 drivers/nvdimm/pmem.h
+AKA-create mode 100644 tools/testing/nvdimm/pmem-dax.c