diff options
| -rw-r--r-- | drivers/cxl/core/region.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index 6a875f86901b..013f3656e661 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -809,6 +809,18 @@ static int cxl_rr_alloc_decoder(struct cxl_port *port, struct cxl_region *cxlr, return -EBUSY; } + /* + * Endpoints should already match the region type, but backstop that + * assumption with an assertion. Switch-decoders change mapping-type + * based on what is mapped when they are assigned to a region. + */ + dev_WARN_ONCE(&cxlr->dev, + port == cxled_to_port(cxled) && + cxld->target_type != cxlr->type, + "%s:%s mismatch decoder type %d -> %d\n", + dev_name(&cxled_to_memdev(cxled)->dev), + dev_name(&cxld->dev), cxld->target_type, cxlr->type); + cxld->target_type = cxlr->type; cxl_rr->decoder = cxld; return 0; } |