Commit 0909b4e5 authored Jan 25, 2022 by Dan Williams

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>

parent 64cda3ae

drivers/cxl/acpi.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;

drivers/cxl/core/port.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -1307,9 +1307,12 @@ 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);
		if (rc)