diff options
| author |   Dan Williams <dan.j.williams@intel.com> | 2022-02-01 12:24:30 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-02-08 22:57:30 -0800 |
| commit | d17d0540a0dbf109210f7b57a37571e2978da0fa (patch) | |
| tree | d7f969f8c73c1134c480484ebb13a72a2950769e /tools/testing/cxl/test/mock.h | |
| parent | cxl/core: Generalize dport enumeration in the core (diff) | |
| download | linux-dev-d17d0540a0dbf109210f7b57a37571e2978da0fa.tar.xz linux-dev-d17d0540a0dbf109210f7b57a37571e2978da0fa.zip | |
cxl/core/hdm: Add CXL standard decoder enumeration to the core
Unlike the decoder enumeration for "root decoders" described by platform
firmware, standard decoders can be enumerated from the component
registers space once the base address has been identified (via PCI,
ACPI, or another mechanism).
Add common infrastructure for HDM (Host-managed-Device-Memory) Decoder
enumeration and share it between host-bridge, upstream switch port, and
cxl_test defined decoders.
The locking model for switch level decoders is to hold the port lock
over the enumeration. This facilitates moving the dport and decoder
enumeration to a 'port' driver. For now, the only enumerator of decoder
resources is the cxl_acpi root driver.
Co-developed-by: Ben Widawsky <ben.widawsky@intel.com>
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/164374688404.395335.9239248252443123526.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'tools/testing/cxl/test/mock.h')
| -rw-r--r-- | tools/testing/cxl/test/mock.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/testing/cxl/test/mock.h b/tools/testing/cxl/test/mock.h index 99e7ff38090d..15e48063ea4b 100644 --- a/tools/testing/cxl/test/mock.h +++ b/tools/testing/cxl/test/mock.h @@ -21,6 +21,9 @@ struct cxl_mock_ops { bool (*is_mock_dev)(struct device *dev); int (*devm_cxl_port_enumerate_dports)(struct device *host, struct cxl_port *port); + struct cxl_hdm *(*devm_cxl_setup_hdm)(struct device *host, struct cxl_port *port); + int (*devm_cxl_add_passthrough_decoder)(struct device *host, struct cxl_port *port); + int (*devm_cxl_enumerate_decoders)(struct device *host, struct cxl_hdm *hdm); }; void register_cxl_mock_ops(struct cxl_mock_ops *ops); |