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-rw-r--r--include/acpi/actbl1.h16
1 files changed, 12 insertions, 4 deletions
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index 556c83ee6b4..4ad7da80518 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -5,7 +5,7 @@
*****************************************************************************/
/*
- * Copyright (C) 2000 - 2013, Intel Corp.
+ * Copyright (C) 2000 - 2014, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -457,7 +457,7 @@ struct acpi_hest_aer_common {
u8 enabled;
u32 records_to_preallocate;
u32 max_sections_per_record;
- u32 bus;
+ u32 bus; /* Bus and Segment numbers */
u16 device;
u16 function;
u16 device_control;
@@ -473,6 +473,14 @@ struct acpi_hest_aer_common {
#define ACPI_HEST_FIRMWARE_FIRST (1)
#define ACPI_HEST_GLOBAL (1<<1)
+/*
+ * Macros to access the bus/segment numbers in Bus field above:
+ * Bus number is encoded in bits 7:0
+ * Segment number is encoded in bits 23:8
+ */
+#define ACPI_HEST_BUS(bus) ((bus) & 0xFF)
+#define ACPI_HEST_SEGMENT(bus) (((bus) >> 8) & 0xFFFF)
+
/* Hardware Error Notification */
struct acpi_hest_notify {
@@ -667,7 +675,7 @@ enum acpi_madt_type {
};
/*
- * MADT Sub-tables, correspond to Type in struct acpi_subtable_header
+ * MADT Subtables, correspond to Type in struct acpi_subtable_header
*/
/* 0: Processor Local APIC */
@@ -910,7 +918,7 @@ enum acpi_srat_type {
};
/*
- * SRAT Sub-tables, correspond to Type in struct acpi_subtable_header
+ * SRAT Subtables, correspond to Type in struct acpi_subtable_header
*/
/* 0: Processor Local APIC/SAPIC Affinity */