summaryrefslogtreecommitdiff
path: root/drivers/cxl
diff options
context:
space:
mode:
authorDan Williams <dan.j.williams@intel.com>2022-01-25 21:24:04 -0800
committerDan Williams <dan.j.williams@intel.com>2022-02-08 23:15:10 -0800
commit0909b4e5287bcda34f00da878ac1f37a0921d959 (patch)
treefd7862c5ff63bc3520d79b76eab141c02c35a9a0 /drivers/cxl
parent64cda3ae6bc785960cd1b4f78c19f7ca53e0130b (diff)
cxl/core/port: Fix / relax decoder target enumeration
If the decoder is not presently active the target_list may not be accurate. Perform a best effort mapping and assume that it will be fixed up when the decoder is enabled. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/164317464406.3438644.6609329492458460242.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl')
-rw-r--r--drivers/cxl/acpi.c2
-rw-r--r--drivers/cxl/core/port.c5
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/cxl/acpi.c b/drivers/cxl/acpi.c
index d8295572bde9..d15a6aec0331 100644
--- a/drivers/cxl/acpi.c
+++ b/drivers/cxl/acpi.c
@@ -15,7 +15,7 @@
static unsigned long cfmws_to_decoder_flags(int restrictions)
{
- unsigned long flags = 0;
+ unsigned long flags = CXL_DECODER_F_ENABLE;
if (restrictions & ACPI_CEDT_CFMWS_RESTRICT_TYPE2)
flags |= CXL_DECODER_F_TYPE2;
diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c
index bc18d339738b..c3e83c624700 100644
--- a/drivers/cxl/core/port.c
+++ b/drivers/cxl/core/port.c
@@ -1307,8 +1307,11 @@ int cxl_decoder_add_locked(struct cxl_decoder *cxld, int *target_map)
port = to_cxl_port(cxld->dev.parent);
if (!is_endpoint_decoder(dev)) {
rc = decoder_populate_targets(cxld, port, target_map);
- if (rc)
+ if (rc && (cxld->flags & CXL_DECODER_F_ENABLE)) {
+ dev_err(&port->dev,
+ "Failed to populate active decoder targets\n");
return rc;
+ }
}
rc = dev_set_name(dev, "decoder%d.%d", port->id, cxld->id);