[PATCH v7 12/27] cxl/mem: Prepare for early RCH dport component register setup

Terry Bowman
2023-06-22T20:59:15Z

From: Robert Richter <rrichter@amd.com>

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>
---
drivers/cxl/mem.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c
index 4cc461c22b8b..7638a7f8f333 100644
--- a/drivers/cxl/mem.c
+++ b/drivers/cxl/mem.c
@@ -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);
--
2.34.1