[PATCH v1 14/16] ACPICA: CEDT: Add Back-Invalidate restriction to CXL Window

Rafael J. Wysocki
2025-09-12T20:06:25Z

From: Davidlohr Bueso <dave@stgolabs.net>

This is added in newer version (3.0+) of the CXL Spec to support the
HDM-DB coherency model.

Link: https://github.com/acpica/acpica/commit/a6886da1
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/actbl1.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index 99fd1588ff38..0b4c332df25c 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -565,6 +565,7 @@ struct acpi_cedt_cfmws_target_element {
#define ACPI_CEDT_CFMWS_RESTRICT_VOLATILE (1<<2)
#define ACPI_CEDT_CFMWS_RESTRICT_PMEM (1<<3)
#define ACPI_CEDT_CFMWS_RESTRICT_FIXED (1<<4)
+#define ACPI_CEDT_CFMWS_RESTRICT_BI (1<<5)

/* 2: CXL XOR Interleave Math Structure */

--
2.51.0