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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-10-13 14:44:50 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-10-13 14:44:50 +0200
commite4174ff78b9ec2179faeffe66640dbddce52b449 (patch)
treeb92eecd95872a5bd0d175892822be1476740f214 /include/linux
parent20eeeafb917be1272eacb09d12e2f79e132f2af0 (diff)
parentdc9e7860df91625fef04d7016182653e8f678f05 (diff)
Merge branch 'acpi-numa'
* acpi-numa: docs: mm: numaperf.rst Add brief description for access class 1. node: Add access1 class to represent CPU to memory characteristics ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3 ACPI: Let ACPI know we support Generic Initiator Affinity Structures x86: Support Generic Initiator only proximity domains ACPI: Support Generic Initiator only domains ACPI / NUMA: Add stub function for pxm_to_node() irq-chip/gic-v3-its: Fix crash if ITS is in a proximity domain without processor or memory ACPI: Remove side effect of partly creating a node in acpi_get_node() ACPI: Rename acpi_map_pxm_to_online_node() to pxm_to_online_node() ACPI: Remove side effect of partly creating a node in acpi_map_pxm_to_online_node() ACPI: Do not create new NUMA domains from ACPI static tables that are not SRAT ACPI: Add out of bounds and numa_off protections to pxm_to_node()
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/acpi.h16
-rw-r--r--include/linux/nodemask.h1
2 files changed, 9 insertions, 8 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 64ae25c59d55..d81ec3000e95 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -420,28 +420,27 @@ int acpi_map_pxm_to_node(int pxm);
int acpi_get_node(acpi_handle handle);
/**
- * acpi_map_pxm_to_online_node - Map proximity ID to online node
+ * pxm_to_online_node - Map proximity ID to online node
* @pxm: ACPI proximity ID
*
- * This is similar to acpi_map_pxm_to_node(), but always returns an online
+ * This is similar to pxm_to_node(), but always returns an online
* node. When the mapped node from a given proximity ID is offline, it
* looks up the node distance table and returns the nearest online node.
*
* ACPI device drivers, which are called after the NUMA initialization has
* completed in the kernel, can call this interface to obtain their device
* NUMA topology from ACPI tables. Such drivers do not have to deal with
- * offline nodes. A node may be offline when a device proximity ID is
- * unique, SRAT memory entry does not exist, or NUMA is disabled, ex.
- * "numa=off" on x86.
+ * offline nodes. A node may be offline when SRAT memory entry does not exist,
+ * or NUMA is disabled, ex. "numa=off" on x86.
*/
-static inline int acpi_map_pxm_to_online_node(int pxm)
+static inline int pxm_to_online_node(int pxm)
{
- int node = acpi_map_pxm_to_node(pxm);
+ int node = pxm_to_node(pxm);
return numa_map_to_online_node(node);
}
#else
-static inline int acpi_map_pxm_to_online_node(int pxm)
+static inline int pxm_to_online_node(int pxm)
{
return 0;
}
@@ -546,6 +545,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
#define OSC_SB_PCLPI_SUPPORT 0x00000080
#define OSC_SB_OSLPI_SUPPORT 0x00000100
#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
+#define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000
extern bool osc_sb_apei_support_acked;
extern bool osc_pc_lpi_support_confirmed;
diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index 27e7fa36f707..3334ce056335 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -399,6 +399,7 @@ enum node_states {
#endif
N_MEMORY, /* The node has memory(regular, high, movable) */
N_CPU, /* The node has one or more cpus */
+ N_GENERIC_INITIATOR, /* The node has one or more Generic Initiators */
NR_NODE_STATES
};