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Date: Mon, 5 Jun 2017 13:50:52 -0600
From: Ross Zwisler <ross.zwisler@...ux.intel.com>
To: linux-kernel@...r.kernel.org
Cc: Ross Zwisler <ross.zwisler@...ux.intel.com>,
"Anaczkowski, Lukasz" <lukasz.anaczkowski@...el.com>,
"Box, David E" <david.e.box@...el.com>,
"Kogut, Jaroslaw" <Jaroslaw.Kogut@...el.com>,
"Lahtinen, Joonas" <joonas.lahtinen@...el.com>,
"Moore, Robert" <robert.moore@...el.com>,
"Nachimuthu, Murugasamy" <murugasamy.nachimuthu@...el.com>,
"Odzioba, Lukasz" <lukasz.odzioba@...el.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
"Schmauss, Erik" <erik.schmauss@...el.com>,
"Verma, Vishal L" <vishal.l.verma@...el.com>,
"Zheng, Lv" <lv.zheng@...el.com>,
Dan Williams <dan.j.williams@...el.com>,
Dave Hansen <dave.hansen@...ux.intel.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Len Brown <lenb@...nel.org>,
Tim Chen <tim.c.chen@...ux.intel.com>, devel@...ica.org,
linux-acpi@...r.kernel.org, linux-nvdimm@...ts.01.org
Subject: [resend RFC 1/6] ACPICA: add HMAT table definitions
Import HMAT table definitions from the ACPICA codebase.
This kernel patch was generated using an ACPICA patch from "Zheng, Lv"
<lv.zheng@...el.com>. The actual upstream patch that adds these table
definitions will come from the Intel ACPICA team as part of their greater
ACPI 6.2 update.
Signed-off-by: Ross Zwisler <ross.zwisler@...ux.intel.com>
---
include/acpi/actbl1.h | 119 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 119 insertions(+)
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index b4ce55c..a5df3f3 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -65,6 +65,7 @@
#define ACPI_SIG_ECDT "ECDT" /* Embedded Controller Boot Resources Table */
#define ACPI_SIG_EINJ "EINJ" /* Error Injection table */
#define ACPI_SIG_ERST "ERST" /* Error Record Serialization Table */
+#define ACPI_SIG_HMAT "HMAT" /* Heterogeneous Memory Attributes Table */
#define ACPI_SIG_HEST "HEST" /* Hardware Error Source Table */
#define ACPI_SIG_MADT "APIC" /* Multiple APIC Description Table */
#define ACPI_SIG_MSCT "MSCT" /* Maximum System Characteristics Table */
@@ -688,6 +689,124 @@ struct acpi_hest_generic_data_v300 {
/*******************************************************************************
*
+ * HMAT - Heterogeneous Memory Attributes Table (ACPI 6.2)
+ * Version 1
+ *
+ ******************************************************************************/
+
+struct acpi_table_hmat {
+ struct acpi_table_header header; /* Common ACPI table header */
+ u32 reserved;
+};
+
+
+/* Values for HMAT structure types */
+
+enum acpi_hmat_type {
+ ACPI_HMAT_TYPE_ADDRESS_RANGE = 0, /* Memory subystem address range */
+ ACPI_HMAT_TYPE_LOCALITY = 1, /* System locality latency and bandwidth information */
+ ACPI_HMAT_TYPE_CACHE = 2, /* Memory side cache information */
+ ACPI_HMAT_TYPE_RESERVED = 3 /* 3 and greater are reserved */
+};
+
+struct acpi_hmat_structure {
+ u16 type;
+ u16 reserved;
+ u32 length;
+};
+
+/*
+ * HMAT Structures, correspond to Type in struct acpi_hmat_structure
+ */
+
+/* 0: Memory subystem address range */
+
+struct acpi_hmat_address_range {
+ struct acpi_hmat_structure header;
+ u16 flags;
+ u16 reserved1;
+ u32 processor_PD; /* Processor proximity domain */
+ u32 memory_PD; /* Memory proximity domain */
+ u32 reserved2;
+ u64 physical_address_base; /* Physical address range base */
+ u64 physical_address_length; /* Physical address range length */
+};
+
+/* Masks for Flags field above */
+
+#define ACPI_HMAT_PROCESSOR_PD_VALID (1) /* 1: processor_PD field is valid */
+#define ACPI_HMAT_MEMORY_PD_VALID (1<<1) /* 1: memory_PD field is valid */
+#define ACPI_HMAT_RESERVATION_HINT (1<<2) /* 1: Reservation hint */
+
+/* 1: System locality latency and bandwidth information */
+
+struct acpi_hmat_locality {
+ struct acpi_hmat_structure header;
+ u8 flags;
+ u8 data_type;
+ u16 reserved1;
+ u32 number_of_initiator_Pds;
+ u32 number_of_target_Pds;
+ u32 reserved2;
+ u64 entry_base_unit;
+ u32 data[1]; /* initiator/target lists followed by entry matrix */
+};
+
+/* Masks for Flags field above */
+
+#define ACPI_HMAT_MEMORY_HIERARCHY (0x0F)
+
+/* Values for Memory Hierarchy flag */
+
+#define ACPI_HMAT_MEMORY 0
+#define ACPI_HMAT_LAST_LEVEL_CACHE 1
+#define ACPI_HMAT_1ST_LEVEL_CACHE 2
+#define ACPI_HMAT_2ND_LEVEL_CACHE 3
+#define ACPI_HMAT_3RD_LEVEL_CACHE 4
+
+/* Values for data_type field above */
+
+#define ACPI_HMAT_ACCESS_LATENCY 0
+#define ACPI_HMAT_READ_LATENCY 1
+#define ACPI_HMAT_WRITE_LATENCY 2
+#define ACPI_HMAT_ACCESS_BANDWIDTH 3
+#define ACPI_HMAT_READ_BANDWIDTH 4
+#define ACPI_HMAT_WRITE_BANDWIDTH 5
+
+/* 2: Memory side cache information */
+
+struct acpi_hmat_cache {
+ struct acpi_hmat_structure header;
+ u32 memory_PD;
+ u32 reserved1;
+ u64 cache_size;
+ u32 cache_attributes;
+ u16 reserved2;
+ u16 number_of_SMBIOShandles;
+};
+
+/* Masks for cache_attributes field above */
+
+#define ACPI_HMAT_TOTAL_CACHE_LEVEL (0x0000000F)
+#define ACPI_HMAT_CACHE_LEVEL (0x000000F0)
+#define ACPI_HMAT_CACHE_ASSOCIATIVITY (0x00000F00)
+#define ACPI_HMAT_WRITE_POLICY (0x0000F000)
+#define ACPI_HMAT_CACHE_LINE_SIZE (0xFFFF0000)
+
+/* Values for cache associativity flag */
+
+#define ACPI_HMAT_CA_NONE (0)
+#define ACPI_HMAT_CA_DIRECT_MAPPED (1)
+#define ACPI_HMAT_CA_COMPLEX_CACHE_INDEXING (2)
+
+/* Values for write policy flag */
+
+#define ACPI_HMAT_CP_NONE (0)
+#define ACPI_HMAT_CP_WB (1)
+#define ACPI_HMAT_CP_WT (2)
+
+/*******************************************************************************
+ *
* MADT - Multiple APIC Description Table
* Version 3
*
--
2.9.4
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