diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2023-02-14 11:41:30 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-02-14 15:45:21 -0800 |
| commit | 4474ce565ee4490fb4e6d8443b617a9d98ae10ff (patch) | |
| tree | 6e95405cb64326700e8af5863425cc9e4ce494d7 /tools | |
| parent | b777e9bec960a29374dc486d47784c73b7ac4cef (diff) | |
cxl/hdm: Create emulated cxl_hdm for devices that do not have HDM decoders
CXL rev3 spec 8.1.3
RCDs may not have HDM register blocks. Create a fake HDM with information
from the CXL PCIe DVSEC registers. The decoder count will be set to the
HDM count retrieved from the DVSEC cap register.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/167640368994.935665.15831225724059704620.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/cxl/test/cxl.c | 3 | ||||
| -rw-r--r-- | tools/testing/cxl/test/mock.c | 8 | ||||
| -rw-r--r-- | tools/testing/cxl/test/mock.h | 3 |
3 files changed, 9 insertions, 5 deletions
diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c index 3b4916adf29c..94197abd44aa 100644 --- a/tools/testing/cxl/test/cxl.c +++ b/tools/testing/cxl/test/cxl.c @@ -618,7 +618,8 @@ static struct acpi_pci_root *mock_acpi_pci_find_root(acpi_handle handle) return &mock_pci_root[host_bridge_index(adev)]; } -static struct cxl_hdm *mock_cxl_setup_hdm(struct cxl_port *port) +static struct cxl_hdm *mock_cxl_setup_hdm(struct cxl_port *port, + struct cxl_endpoint_dvsec_info *info) { struct cxl_hdm *cxlhdm = devm_kzalloc(&port->dev, sizeof(*cxlhdm), GFP_KERNEL); diff --git a/tools/testing/cxl/test/mock.c b/tools/testing/cxl/test/mock.c index 3116c9f07c5d..c4e53f22e421 100644 --- a/tools/testing/cxl/test/mock.c +++ b/tools/testing/cxl/test/mock.c @@ -131,16 +131,18 @@ __wrap_nvdimm_bus_register(struct device *dev, } EXPORT_SYMBOL_GPL(__wrap_nvdimm_bus_register); -struct cxl_hdm *__wrap_devm_cxl_setup_hdm(struct cxl_port *port) +struct cxl_hdm *__wrap_devm_cxl_setup_hdm(struct cxl_port *port, + struct cxl_endpoint_dvsec_info *info) + { int index; struct cxl_hdm *cxlhdm; struct cxl_mock_ops *ops = get_cxl_mock_ops(&index); if (ops && ops->is_mock_port(port->uport)) - cxlhdm = ops->devm_cxl_setup_hdm(port); + cxlhdm = ops->devm_cxl_setup_hdm(port, info); else - cxlhdm = devm_cxl_setup_hdm(port); + cxlhdm = devm_cxl_setup_hdm(port, info); put_cxl_mock_ops(index); return cxlhdm; diff --git a/tools/testing/cxl/test/mock.h b/tools/testing/cxl/test/mock.h index e377ced5f1b3..bef8817b01f2 100644 --- a/tools/testing/cxl/test/mock.h +++ b/tools/testing/cxl/test/mock.h @@ -23,7 +23,8 @@ struct cxl_mock_ops { bool (*is_mock_port)(struct device *dev); bool (*is_mock_dev)(struct device *dev); int (*devm_cxl_port_enumerate_dports)(struct cxl_port *port); - struct cxl_hdm *(*devm_cxl_setup_hdm)(struct cxl_port *port); + struct cxl_hdm *(*devm_cxl_setup_hdm)( + struct cxl_port *port, struct cxl_endpoint_dvsec_info *info); int (*devm_cxl_add_passthrough_decoder)(struct cxl_port *port); int (*devm_cxl_enumerate_decoders)( struct cxl_hdm *hdm, struct cxl_endpoint_dvsec_info *info); |