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cxl/mem: Prepare for early RCH dport component register setup

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In order to move the RCH dport component register setup to cxl_pci the
base address must be stored in CXL device state (cxlds) for both
modes, RCH and VH. Store it in cxlds->component_reg_phys and use it
for endpoint creation.

Signed-off-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Terry Bowman <terry.bowman@amd.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20230622205523.85375-13-terry.bowman@amd.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Robert Richter 2023-06-22 15:55:08 -05:00 committed by Dan Williams
parent f1d0525eff
commit 86917c560d
1 changed files with 4 additions and 5 deletions
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9
drivers/cxl/mem.c
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@ -51,7 +51,6 @@ static int devm_cxl_add_endpoint(struct device *host, struct cxl_memdev *cxlmd,
struct cxl_port *parent_port = parent_dport->port;
struct cxl_dev_state *cxlds = cxlmd->cxlds;
struct cxl_port *endpoint, *iter, *down;
resource_size_t component_reg_phys;
int rc;
/*
@ -72,11 +71,11 @@ static int devm_cxl_add_endpoint(struct device *host, struct cxl_memdev *cxlmd,
* typical register locator mechanism.
*/
if (parent_dport->rch && cxlds->component_reg_phys == CXL_RESOURCE_NONE)
component_reg_phys =
cxlds->component_reg_phys =
cxl_rcd_component_reg_phys(&cxlmd->dev, parent_dport);
else
component_reg_phys = cxlds->component_reg_phys;
endpoint = devm_cxl_add_port(host, &cxlmd->dev, component_reg_phys,
endpoint = devm_cxl_add_port(host, &cxlmd->dev,
cxlds->component_reg_phys,
parent_dport);
if (IS_ERR(endpoint))
return PTR_ERR(endpoint);