linux-acpi.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux ACPI <linux-acpi@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Bob Moore <robert.moore@intel.com>,
	Saket Dumbre <saket.dumbre@intel.com>
Subject: [PATCH v1 06/19] ACPICA: actbl2.h: MRRM: Add typedef and other  definitions
Date: Fri, 25 Apr 2025 21:24:02 +0200	[thread overview]
Message-ID: <3372188.44csPzL39Z@rjwysocki.net> (raw)
In-Reply-To: <12671029.O9o76ZdvQC@rjwysocki.net>

From: Tony Luck <tony.luck@intel.com>

ACPICA commit 04fd53b2647b9f6f98cfca551383689cb3b59362

The MRRM table describes association between physical address ranges
and "region numbers".

Structure defined in the Intel Resource Director Technology (RDT)
Architecture specification downloadable from www.intel.com/sdm

Link: https://github.com/acpica/acpica/commit/04fd53b2
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/actbl2.h | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index a3008bae6f48..4fd5e8b2e199 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -37,6 +37,7 @@
 #define ACPI_SIG_MCHI           "MCHI"	/* Management Controller Host Interface table */
 #define ACPI_SIG_MPAM           "MPAM"	/* Memory System Resource Partitioning and Monitoring Table */
 #define ACPI_SIG_MPST           "MPST"	/* Memory Power State Table */
+#define ACPI_SIG_MRRM           "MRRM"	/* Memory Range and Region Mapping table */
 #define ACPI_SIG_MSDM           "MSDM"	/* Microsoft Data Management Table */
 #define ACPI_SIG_NFIT           "NFIT"	/* NVDIMM Firmware Interface Table */
 #define ACPI_SIG_NHLT           "NHLT"	/* Non HD Audio Link Table */
@@ -1736,6 +1737,45 @@ struct acpi_msct_proximity {
 	u64 memory_capacity;	/* In bytes */
 };
 
+/*******************************************************************************
+ *
+ * MRRM - Memory Range and Region Mapping (MRRM) table
+ *
+ ******************************************************************************/
+
+struct acpi_table_mrrm {
+	struct acpi_table_header header;	/* Common ACPI table header */
+	u8 max_mem_region;	/* Max Memory Regions supported */
+	u8 flags;		/* Region assignment type */
+	u8 reserved[26];
+	u8 memory_range_entry[];
+};
+
+/* Flags */
+#define ACPI_MRRM_FLAGS_REGION_ASSIGNMENT_OS    (1<<0)
+
+/*******************************************************************************
+ *
+ * Memory Range entry - Memory Range entry in MRRM table
+ *
+ ******************************************************************************/
+
+struct acpi_table_mrrm_mem_range_entry {
+	ACPI_SUBTABLE_HEADER_16 header;
+	u32 reserved0;		/* Reserved */
+	u64 addr_base;		/* Base addr of the mem range */
+	u64 addr_len;		/* Length of the mem range */
+	u16 region_id_flags;	/* Valid local or remote Region-ID */
+	u8 local_region_id;	/* Platform-assigned static local Region-ID */
+	u8 remote_region_id;	/* Platform-assigned static remote Region-ID */
+	u32 reserved1;		/* Reserved */
+	/* Region-ID Programming Registers[] */
+};
+
+/* Values for region_id_flags above */
+#define ACPI_MRRM_VALID_REGION_ID_FLAGS_LOCAL   (1<<0)
+#define ACPI_MRRM_VALID_REGION_ID_FLAGS_REMOTE  (1<<1)
+
 /*******************************************************************************
  *
  * MSDM - Microsoft Data Management table
-- 
2.43.0





  parent reply	other threads:[~2025-04-25 19:34 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-25 19:19 [PATCH v1 00/19] ACPICA: ACPICA 20250404 Rafael J. Wysocki
2025-04-25 19:20 ` [PATCH v1 01/19] ACPICA: Drop stale comment about the header file content Rafael J. Wysocki
2025-04-25 19:21 ` [PATCH v1 02/19] ACPICA: Apply pack(1) to union aml_resource Rafael J. Wysocki
2025-04-30 18:48   ` Tamir Duberstein
2025-04-30 18:48   ` [PATCH 0/0] Cover letter only Tamir Duberstein
2025-04-30 18:52     ` Tamir Duberstein
2025-04-25 19:21 ` [PATCH v1 03/19] ACPICA: utilities: Fix overflow check in vsnprintf() Rafael J. Wysocki
2025-05-09 21:41   ` gldrk
2025-04-25 19:22 ` [PATCH v1 04/19] ACPICA: Interpret SIDP structures in DMAR Rafael J. Wysocki
2025-04-25 19:23 ` [PATCH v1 05/19] ACPICA: infrastructure: Add new header and ACPI_DMT_BUF26 types Rafael J. Wysocki
2025-04-25 19:24 ` Rafael J. Wysocki [this message]
2025-04-25 19:24 ` [PATCH v1 07/19] ACPICA: actbl2: Add definitions for RIMT Rafael J. Wysocki
2025-04-25 19:25 ` [PATCH v1 08/19] ACPICA: MRRM: Some cleanups Rafael J. Wysocki
2025-04-25 19:26 ` [PATCH v1 09/19] ACPICA: Utilities: Fix spelling mistake "Incremement" -> "Increment" Rafael J. Wysocki
2025-04-25 19:26 ` [PATCH v1 10/19] ACPICA: infrastructure: Add new DMT_BUF types and shorten a long name Rafael J. Wysocki
2025-04-25 19:27 ` [PATCH v1 11/19] ACPICA: actbl2.h: ERDT: Add typedef and other definitions Rafael J. Wysocki
2025-04-25 19:27 ` [PATCH v1 12/19] ACPICA: Introduce ACPI_NONSTRING Rafael J. Wysocki
2025-04-30 18:35   ` Kees Cook
2025-04-30 18:49     ` Rafael J. Wysocki
2025-04-25 19:28 ` [PATCH v1 13/19] ACPICA: Apply ACPI_NONSTRING Rafael J. Wysocki
2025-04-25 19:29 ` [PATCH v1 14/19] ACPICA: actbl2.h: ACPI 6.5: RAS2: Rename structure and field names of the RAS2 table Rafael J. Wysocki
2025-04-25 19:29 ` [PATCH v1 15/19] ACPICA: Adjust the position of code lines Rafael J. Wysocki
2025-04-25 19:30 ` [PATCH v1 16/19] ACPICA: Avoid sequence overread in call to strncmp() Rafael J. Wysocki
2025-04-25 19:31 ` [PATCH v1 17/19] ACPICA: Apply ACPI_NONSTRING in more places Rafael J. Wysocki
2025-04-25 19:32 ` [PATCH v1 18/19] ACPICA: Replace strncpy() with memcpy() Rafael J. Wysocki
2025-05-07  5:42   ` kernel test robot
2025-04-25 19:33 ` [PATCH v1 19/19] ACPICA: Logfile: Changes for version 20250404 Rafael J. Wysocki

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=3372188.44csPzL39Z@rjwysocki.net \
    --to=rjw@rjwysocki.net \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=robert.moore@intel.com \
    --cc=saket.dumbre@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).