linux_dsm_epyc7002/arch/ia64/kernel
Linus Torvalds 88793e5c77 The libnvdimm sub-system introduces, in addition to the libnvdimm-core,
4 drivers / enabling modules:
 
 NFIT:
 Instantiates an "nvdimm bus" with the core and registers memory devices
 (NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware Interface
 table).  After registering NVDIMMs the NFIT driver then registers
 "region" devices.  A libnvdimm-region defines an access mode and the
 boundaries of persistent memory media.  A region may span multiple
 NVDIMMs that are interleaved by the hardware memory controller.  In
 turn, a libnvdimm-region can be carved into a "namespace" device and
 bound to the PMEM or BLK driver which will attach a Linux block device
 (disk) interface to the memory.
 
 PMEM:
 Initially merged in v4.1 this driver for contiguous spans of persistent
 memory address ranges is re-worked to drive PMEM-namespaces emitted by
 the libnvdimm-core.  In this update the PMEM driver, on x86, gains the
 ability to assert that writes to persistent memory have been flushed all
 the way through the caches and buffers in the platform to persistent
 media.  See memcpy_to_pmem() and wmb_pmem().
 
 BLK:
 This new driver enables access to persistent memory media through "Block
 Data Windows" as defined by the NFIT.  The primary difference of this
 driver to PMEM is that only a small window of persistent memory is
 mapped into system address space at any given point in time.  Per-NVDIMM
 windows are reprogrammed at run time, per-I/O, to access different
 portions of the media.  BLK-mode, by definition, does not support DAX.
 
 BTT:
 This is a library, optionally consumed by either PMEM or BLK, that
 converts a byte-accessible namespace into a disk with atomic sector
 update semantics (prevents sector tearing on crash or power loss).  The
 sinister aspect of sector tearing is that most applications do not know
 they have a atomic sector dependency.  At least today's disk's rarely
 ever tear sectors and if they do one almost certainly gets a CRC error
 on access.  NVDIMMs will always tear and always silently.  Until an
 application is audited to be robust in the presence of sector-tearing
 the usage of BTT is recommended.
 
 Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig,
 Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox,
 Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael
 Wysocki, and Bob Moore.
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Merge tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm

Pull libnvdimm subsystem from Dan Williams:
 "The libnvdimm sub-system introduces, in addition to the
  libnvdimm-core, 4 drivers / enabling modules:

  NFIT:
    Instantiates an "nvdimm bus" with the core and registers memory
    devices (NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware
    Interface table).

    After registering NVDIMMs the NFIT driver then registers "region"
    devices.  A libnvdimm-region defines an access mode and the
    boundaries of persistent memory media.  A region may span multiple
    NVDIMMs that are interleaved by the hardware memory controller.  In
    turn, a libnvdimm-region can be carved into a "namespace" device and
    bound to the PMEM or BLK driver which will attach a Linux block
    device (disk) interface to the memory.

  PMEM:
    Initially merged in v4.1 this driver for contiguous spans of
    persistent memory address ranges is re-worked to drive
    PMEM-namespaces emitted by the libnvdimm-core.

    In this update the PMEM driver, on x86, gains the ability to assert
    that writes to persistent memory have been flushed all the way
    through the caches and buffers in the platform to persistent media.
    See memcpy_to_pmem() and wmb_pmem().

  BLK:
    This new driver enables access to persistent memory media through
    "Block Data Windows" as defined by the NFIT.  The primary difference
    of this driver to PMEM is that only a small window of persistent
    memory is mapped into system address space at any given point in
    time.

    Per-NVDIMM windows are reprogrammed at run time, per-I/O, to access
    different portions of the media.  BLK-mode, by definition, does not
    support DAX.

  BTT:
    This is a library, optionally consumed by either PMEM or BLK, that
    converts a byte-accessible namespace into a disk with atomic sector
    update semantics (prevents sector tearing on crash or power loss).

    The sinister aspect of sector tearing is that most applications do
    not know they have a atomic sector dependency.  At least today's
    disk's rarely ever tear sectors and if they do one almost certainly
    gets a CRC error on access.  NVDIMMs will always tear and always
    silently.  Until an application is audited to be robust in the
    presence of sector-tearing the usage of BTT is recommended.

  Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig,
  Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox,
  Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael
  Wysocki, and Bob Moore"

* tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm: (33 commits)
  arch, x86: pmem api for ensuring durability of persistent memory updates
  libnvdimm: Add sysfs numa_node to NVDIMM devices
  libnvdimm: Set numa_node to NVDIMM devices
  acpi: Add acpi_map_pxm_to_online_node()
  libnvdimm, nfit: handle unarmed dimms, mark namespaces read-only
  pmem: flag pmem block devices as non-rotational
  libnvdimm: enable iostat
  pmem: make_request cleanups
  libnvdimm, pmem: fix up max_hw_sectors
  libnvdimm, blk: add support for blk integrity
  libnvdimm, btt: add support for blk integrity
  fs/block_dev.c: skip rw_page if bdev has integrity
  libnvdimm: Non-Volatile Devices
  tools/testing/nvdimm: libnvdimm unit test infrastructure
  libnvdimm, nfit, nd_blk: driver for BLK-mode access persistent memory
  nd_btt: atomic sector updates
  libnvdimm: infrastructure for btt devices
  libnvdimm: write blk label set
  libnvdimm: write pmem label set
  libnvdimm: blk labels and namespace instantiation
  ...
2015-06-29 10:34:42 -07:00
..
.gitignore
acpi-ext.c ACPICA: Resources: Provide common part for struct acpi_resource_address structures. 2015-01-26 16:09:56 +01:00
acpi.c Initial ACPI support for arm64: 2015-04-24 08:23:45 -07:00
asm-offsets.c ia64/xen: Remove Xen support for ia64 2013-12-10 16:11:07 -08:00
audit.c [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
brl_emu.c
crash_dump.c crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn 2011-03-23 19:47:19 -07:00
crash.c ia64: convert use of typedef ctl_table to struct ctl_table 2014-06-06 16:08:15 -07:00
cyclone.c ia64: Replace clocksource.fsys_mmio with generic arch data 2011-07-14 17:57:09 -07:00
dma-mapping.c ia64: Add export.h to arch/ia64 specific files as required 2011-10-31 19:30:58 -04:00
efi_stub.S
efi.c The libnvdimm sub-system introduces, in addition to the libnvdimm-core, 2015-06-29 10:34:42 -07:00
elfcore.c switch elf_core_write_extra_data() to dump_emit() 2013-11-09 00:16:23 -05:00
entry.h
entry.S ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
err_inject.c ia64, err-inject: Fix CPU hotplug callback registration 2014-03-20 13:43:41 +01:00
esi_stub.S
esi.c
fsys.S ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
fsyscall_gtod_data.h ia64: vsyscall: Use seqcount instead of seqlock 2012-03-15 18:17:59 -07:00
ftrace.c ftrace: Do not pass data to ftrace_dyn_arch_init 2014-03-07 10:06:14 -05:00
gate-data.S Rename .data.gate to .data..gate. 2010-03-03 11:25:59 +01:00
gate.lds.S ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
gate.S ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
head.S ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
ia64_ksyms.c ia64: export flush_icache_range for module use 2015-06-15 14:58:24 -07:00
init_task.c Rename .data.init_task to .data..init_task. 2010-03-03 11:25:58 +01:00
iosapic.c ia64: fix up obsolete cpu function usage. 2015-03-05 15:25:04 +10:30
irq_ia64.c ia64: remove deprecated cpus_ usage. 2015-03-10 13:54:38 +10:30
irq_lsapic.c ia64: Convert lsapic to new irq_chip functions 2011-03-29 14:48:02 +02:00
irq.c ia64: Replace __get_cpu_var uses 2014-08-26 13:45:52 -04:00
ivt.S ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
jprobes.S
kprobes.c ia64: Replace __get_cpu_var uses 2014-08-26 13:45:52 -04:00
machine_kexec.c ia64: expose number of page table levels on Kconfig level 2015-04-14 16:49:02 -07:00
machvec.c Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
Makefile ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
Makefile.gate Rename .data.gate to .data..gate. 2010-03-03 11:25:59 +01:00
mca_asm.S
mca_drv_asm.S
mca_drv.c Remove cast for kmalloc return value 2013-03-19 16:14:53 -07:00
mca_drv.h
mca.c ia64: Use setup_timer 2015-06-15 15:45:18 -07:00
minstate.h ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
module.c ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
msi_ia64.c iommu/vt-d: Refine the interfaces to create IRQ for DMAR unit 2015-04-24 15:36:49 +02:00
nr-irqs.c ia64/xen: Remove Xen support for ia64 2013-12-10 16:11:07 -08:00
numa.c ia64: fix up obsolete cpu function usage. 2015-03-05 15:25:04 +10:30
pal.S
palinfo.c ia64, palinfo: Fix CPU hotplug callback registration 2014-03-20 13:43:40 +01:00
patch.c ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
pci-dma.c [IA64] pci: Remove unused fallback_dev 2013-06-03 16:04:31 -07:00
pci-swiotlb.c X86 & IA64: adapt for dma_map_ops changes 2012-03-28 16:36:31 +02:00
perfmon_default_smpl.c Fix common misspellings 2011-03-31 11:26:23 -03:00
perfmon_generic.h
perfmon_itanium.h
perfmon_mckinley.h
perfmon_montecito.h
perfmon.c VFS: assorted weird filesystems: d_inode() annotations 2015-04-15 15:06:58 -04:00
process.c ia64: Replace __get_cpu_var uses 2014-08-26 13:45:52 -04:00
ptrace.c ARCH: AUDIT: audit_syscall_entry() should not require the arch 2014-09-23 16:21:26 -04:00
relocate_kernel.S
sal.c
salinfo.c ia64: fix up obsolete cpu function usage. 2015-03-05 15:25:04 +10:30
setup.c ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
sigframe.h
signal.c all arches, signal: move restart_block to struct task_struct 2015-02-12 18:54:12 -08:00
smp.c ia64: fix up obsolete cpu function usage. 2015-03-05 15:25:04 +10:30
smpboot.c Nobody cares about paravirtualization on ia64 anymore 2015-06-22 20:33:38 -07:00
stacktrace.c [IA64] Add CONFIG_STACKTRACE_SUPPORT 2010-09-23 13:52:07 -07:00
sys_ia64.c mm: use vm_unmapped_area() on ia64 architecture 2013-02-22 13:46:59 -08:00
time.c ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
topology.c ia64: fix up obsolete cpu function usage. 2015-03-05 15:25:04 +10:30
traps.c ia64: Replace __get_cpu_var uses 2014-08-26 13:45:52 -04:00
unaligned.c [IA64] use __ratelimit 2010-05-18 14:45:54 -07:00
uncached.c mm: fix GFP_THISNODE callers and clarify 2014-03-10 17:26:19 -07:00
unwind_decoder.c
unwind_i.h
unwind.c Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
vmlinux.lds.S ia64: remove paravirt code 2015-06-10 14:26:32 -07:00