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Recall that the primary role of the cxl_mem driver is to probe if the given endpoint is connected to a CXL port topology. In that process it walks its device ancestry to its PCI root port. If that root port is also a CXL root port then the probe process adds cxl_port object instances at switch in the path between to the root and the endpoint. As those cxl_port instances are added, or if a previous enumeration attempt already created the port, a 'struct cxl_ep' instance is registered with that port to track the endpoints interested in that port. At the time the cxl_ep is registered the downstream egress path from the port to the endpoint is known. Take the opportunity to record that information as it will be needed for dynamic programming of decoder targets during region provisioning. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/165784329944.1758207.15203961796832072116.stgit@dwillia2-xfh.jf.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
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| .. | ||
| core | ||
| acpi.c | ||
| cxl.h | ||
| cxlmem.h | ||
| cxlpci.h | ||
| Kconfig | ||
| Makefile | ||
| mem.c | ||
| pci.c | ||
| pmem.c | ||
| port.c | ||