diff options
| -rw-r--r-- | drivers/cxl/acpi.c | 6 | ||||
| -rw-r--r-- | drivers/cxl/cxl.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/cxl/acpi.c b/drivers/cxl/acpi.c index eb436268b92c..fb649683dd3a 100644 --- a/drivers/cxl/acpi.c +++ b/drivers/cxl/acpi.c @@ -140,6 +140,12 @@ static int cxl_parse_cfmws(union acpi_subtable_headers *header, void *arg, .end = res->end, }; cxld->interleave_ways = ways; + /* + * Minimize the x1 granularity to advertise support for any + * valid region granularity + */ + if (ways == 1) + ig = CXL_DECODER_MIN_GRANULARITY; cxld->interleave_granularity = ig; rc = cxl_decoder_add(cxld, target_map); diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index 969953ce2609..bc604b7e44fb 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -248,6 +248,8 @@ enum cxl_decoder_type { */ #define CXL_DECODER_MAX_INTERLEAVE 16 +#define CXL_DECODER_MIN_GRANULARITY 256 + /** * struct cxl_decoder - Common CXL HDM Decoder Attributes * @dev: this decoder's device |