On 11/19/25 12:52 AM, Neeraj Kumar wrote:
> Save region information stored in cxlr to nd_set during
> cxl_pmem_region_probe in nd_set. This saved region information is being
> stored into LSA, which will be used for cxl region persistence
>
> Signed-off-by: Neeraj Kumar
Reviewed-by: Dave Jiang
> ---
> drivers/cxl/pmem.c | 13 +++--
> 1 file changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/cxl/pmem.c b/drivers/cxl/pmem.c
> index e197883690ef..a6eba3572090 100644
> --- a/drivers/cxl/pmem.c
> +++ b/drivers/cxl/pmem.c
> @@ -377,6 +377,7 @@ static int cxl_pmem_region_probe(struct device *dev)
> struct nd_mapping_desc mappings[CXL_DECODER_MAX_INTERLEAVE];
> struct cxl_pmem_region *cxlr_pmem = to_cxl_pmem_region(dev);
> struct cxl_region *cxlr = cxlr_pmem->cxlr;
> + struct cxl_region_params *p = &cxlr->params;
> struct cxl_nvdimm_bridge *cxl_nvb = cxlr->cxl_nvb;
> struct cxl_pmem_region_info *info = NULL;
> struct nd_interleave_set *nd_set;
> @@ -465,12 +466,12 @@ static int cxl_pmem_region_probe(struct device *dev)
> ndr_desc.num_mappings = cxlr_pmem->nr_mappings;
> ndr_desc.mapping = mappings;
>
> - /*
> - * TODO enable CXL labels which skip the need for 'interleave-set
> cookie'
> - */
> - nd_set->cookie1 =
> - nd_fletcher64(info, sizeof(*info) * cxlr_pmem->nr_mappings, 0);
> - nd_set->cookie2 = nd_set->cookie1;
> + nd_set->uuid = p->uuid;
> + nd_set->interleave_ways = p->interleave_ways;
> + nd_set->interleave_granularity = p->interleave_granularity;
> + nd_set->res = p->res;
> + nd_set->nr_targets = p->nr_targets;
> +
> ndr_desc.nd_set = nd_set;
>
> cxlr_pmem->nd_region =
