diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2022-01-11 08:06:40 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-07-26 12:23:01 -0700 |
| commit | 04ad63f086d1a9649b8b082748cbc7a570ade461 (patch) | |
| tree | b9bfa0e0a44ce367490fbabe100a0ccde8960fc3 /drivers/cxl/core/pmem.c | |
| parent | 99183d26ed6191010fca09518dae34d6aff3cd14 (diff) | |
cxl/region: Introduce cxl_pmem_region objects
The LIBNVDIMM subsystem is a platform agnostic representation of system
NVDIMM / persistent memory resources. To date, the CXL subsystem's
interaction with LIBNVDIMM has been to register an nvdimm-bridge device
and cxl_nvdimm objects to proxy CXL capabilities into existing LIBNVDIMM
subsystem mechanics.
With regions the approach is the same. Create a new cxl_pmem_region
object to proxy CXL region details into a LIBNVDIMM definition. With
this enabling LIBNVDIMM can partition CXL persistent memory regions with
legacy namespace labels. A follow-on patch will add CXL region label and
CXL namespace label support to persist region configurations across
driver reload / system-reset events.
Co-developed-by: Ben Widawsky <bwidawsk@kernel.org>
Signed-off-by: Ben Widawsky <bwidawsk@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/165784340111.1758207.3036498385188290968.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl/core/pmem.c')
| -rw-r--r-- | drivers/cxl/core/pmem.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/cxl/core/pmem.c b/drivers/cxl/core/pmem.c index bec7cfb54ebf..1d12a8206444 100644 --- a/drivers/cxl/core/pmem.c +++ b/drivers/cxl/core/pmem.c @@ -62,9 +62,9 @@ static int match_nvdimm_bridge(struct device *dev, void *data) return is_cxl_nvdimm_bridge(dev); } -struct cxl_nvdimm_bridge *cxl_find_nvdimm_bridge(struct cxl_nvdimm *cxl_nvd) +struct cxl_nvdimm_bridge *cxl_find_nvdimm_bridge(struct device *start) { - struct cxl_port *port = find_cxl_root(&cxl_nvd->dev); + struct cxl_port *port = find_cxl_root(start); struct device *dev; if (!port) |