Commit d62e2ed0 authored by Ira Weiny's avatar Ira Weiny Committed by Dave Jiang
Browse files

ACPI/CDAT: Add CDAT/DSMAS shared and read only flag values 

The Coherent Device Attribute Table (CDAT) Device Scoped Memory Affinity
Structure (DSMAS) version 1.04 [1] defines flags to indicate if a DPA range
is read only and/or shared.

Add read only and shareable flag definitions.

This change was merged in ACPICA via PR 976.[2]

Link: https://uefi.org/sites/default/files/resources/Coherent%20Device%20Attribute%20Table_1.04%20published_0.pdf [1]
Link: https://github.com/acpica/acpica/pull/976

 [2]
Cc: Robert Moore <robert.moore@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: linux-acpi@vger.kernel.org
Cc: acpica-devel@lists.linux.dev
Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarIra Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/20241107-dcd-type2-upstream-v7-2-56a84e66bc36@intel.com


Signed-off-by: default avatarDave Jiang <dave.jiang@intel.com>
parent 06cf321a

include/acpi/actbl1.h

+2 −0
Original line number Diff line number Diff line
@@ -403,6 +403,8 @@ struct acpi_cdat_dsmas { 
/* Flags for subtable above */



#define ACPI_CDAT_DSMAS_NON_VOLATILE        (1 << 2)

#define ACPI_CDAT_DSMAS_SHAREABLE           (1 << 3)

#define ACPI_CDAT_DSMAS_READ_ONLY           (1 << 6)



/* Subtable 1: Device scoped Latency and Bandwidth Information Structure (DSLBIS) */