Dan Williams ae86cbfef3 libnvdimm, pfn: Pad pfn namespaces relative to other regions ...

Commit cfe30b872058 "libnvdimm, pmem: adjust for section collisions with
'System RAM'" enabled Linux to workaround occasions where platform
firmware arranges for "System RAM" and "Persistent Memory" to collide
within a single section boundary. Unfortunately, as reported in this
issue [1], platform firmware can inflict the same collision between
persistent memory regions.

The approach of interrogating iomem_resource does not work in this
case because platform firmware may merge multiple regions into a single
iomem_resource range. Instead provide a method to interrogate regions
that share the same parent bus.

This is a stop-gap until the core-MM can grow support for hotplug on
sub-section boundaries.

[1]: https://github.com/pmem/ndctl/issues/76

Fixes: cfe30b872058 ("libnvdimm, pmem: adjust for section collisions with...")
Cc: <stable@vger.kernel.org>
Reported-by: Patrick Geary <patrickg@supermicro.com>
Tested-by: Patrick Geary <patrickg@supermicro.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

2018-12-05 14:16:12 -08:00

..

badrange.c

libnvdimm, badrange: remove a WARN for list_empty

2017-11-02 10:42:30 -07:00

blk.c

block: genhd: add 'groups' argument to device_add_disk

2018-09-28 08:30:28 -06:00

btt_devs.c

libnvdimm: remove redundant __func__ in dev_dbg

2018-03-06 08:44:17 -08:00

btt.c

block: genhd: add 'groups' argument to device_add_disk

2018-09-28 08:30:28 -06:00

btt.h

libnvdimm, btt: Fix an incompatibility in the log layout

2017-12-21 14:59:27 -08:00

bus.c

libnvdimm: Set device node in nd_device_register

2018-09-26 12:02:32 -07:00

claim.c

libnvdimm, pmem: Fix memcpy_mcsafe() return code handling in nsio_rw_bytes()

2018-06-28 18:21:30 -07:00

core.c

libnvdimm: remove redundant __func__ in dev_dbg

2018-03-06 08:44:17 -08:00

dax_devs.c

libnvdimm: remove redundant __func__ in dev_dbg

2018-03-06 08:44:17 -08:00

dimm_devs.c

nvdimm: Split label init out from the logic for getting config data

2018-10-12 08:39:24 -07:00

dimm.c

nvdimm: Use namespace index data to reduce number of label reads needed

2018-10-12 08:39:31 -07:00

e820.c

libnvdimm, e820: Register all pmem resources

2018-06-02 17:05:43 -07:00

Kconfig

Revert "libnvdimm, of_pmem: workaround OF_NUMA=n build error"

2018-04-19 15:10:56 -07:00

label.c

libnvdimm, label: Fix sparse warning

2018-10-12 08:39:41 -07:00

label.h

nvdimm: Use namespace index data to reduce number of label reads needed

2018-10-12 08:39:31 -07:00

Makefile

libnvdimm: Add device-tree based driver

2018-04-07 07:53:23 -07:00

namespace_devs.c

libnvdimm, namespace: Drop the repeat assignment for variable dev->parent

2018-10-01 21:27:09 -07:00

nd-core.h

libnvdimm, pfn: Pad pfn namespaces relative to other regions

2018-12-05 14:16:12 -08:00

nd.h

nvdimm: Split label init out from the logic for getting config data

2018-10-12 08:39:24 -07:00

of_pmem.c

libnvdimm, of_pmem: use dev_to_node() instead of of_node_to_nid()

2018-04-19 15:07:10 -07:00

pfn_devs.c

libnvdimm, pfn: Pad pfn namespaces relative to other regions

2018-12-05 14:16:12 -08:00

pfn.h

libnvdimm, dax: autodetect support

2016-05-20 22:02:57 -07:00

pmem.c

libnvdimm for 4.20

2018-10-25 06:31:56 -07:00

pmem.h

libnvdimm, pmem: Restore page attributes when clearing errors

2018-08-20 09:22:45 -07:00

region_devs.c

libnvdimm, pfn: Pad pfn namespaces relative to other regions

2018-12-05 14:16:12 -08:00

region.c

libnvdimm, region: quiet region probe

2018-04-07 07:47:10 -07:00