@@ -536,6 +536,11 @@ static int cxl_get_chbs(struct device *dev, struct acpi_device *hb,
return 0;
}
+static void setup_platform_quirks(struct cxl_root *root)
+{
+ root->hpa_xlat_enable = 0;
+}
+
static int get_genport_coordinates(struct device *dev, struct cxl_dport *dport)
{
struct acpi_device *hb = to_cxl_host_bridge(NULL, dev);
@@ -838,6 +843,8 @@ static int cxl_acpi_probe(struct platform_device *pdev)
return PTR_ERR(cxl_root);
root_port = &cxl_root->port;
+ setup_platform_quirks(cxl_root);
+
rc = bus_for_each_dev(adev->dev.bus, NULL, root_port,
add_host_bridge_dport);
if (rc < 0)
@@ -627,10 +627,12 @@ struct cxl_port {
*
* @port: cxl_port member
* @ops: cxl root operations
+ * @hpa_xlat_enable: enable HPA translation
*/
struct cxl_root {
struct cxl_port port;
const struct cxl_root_ops *ops;
+ bool hpa_xlat_enable;
};
static inline struct cxl_root *
Adding an early check to detect platform specifics to (later) enable HPA address translation. The cxl_root structure is used to store that information. Note: The platform check will be added later when enabling address translation. Link: https://lore.kernel.org/all/65c68969903b1_afa429460@dwillia2-xfh.jf.intel.com.notmuch/ Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Robert Richter <rrichter@amd.com> --- drivers/cxl/acpi.c | 7 +++++++ drivers/cxl/cxl.h | 2 ++ 2 files changed, 9 insertions(+)