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-rw-r--r--drivers/acpi/numa/hmat.c26
-rw-r--r--drivers/base/node.c6
-rw-r--r--include/linux/node.h18
3 files changed, 32 insertions, 18 deletions
diff --git a/drivers/acpi/numa/hmat.c b/drivers/acpi/numa/hmat.c
index a26e7793ec4e..e0144cfbf1f3 100644
--- a/drivers/acpi/numa/hmat.c
+++ b/drivers/acpi/numa/hmat.c
@@ -59,9 +59,7 @@ struct target_cache {
};
enum {
- NODE_ACCESS_CLASS_0 = 0,
- NODE_ACCESS_CLASS_1,
- NODE_ACCESS_CLASS_GENPORT_SINK,
+ NODE_ACCESS_CLASS_GENPORT_SINK = ACCESS_COORDINATE_MAX,
NODE_ACCESS_CLASS_MAX,
};
@@ -374,11 +372,11 @@ static __init void hmat_update_target(unsigned int tgt_pxm, unsigned int init_px
if (target && target->processor_pxm == init_pxm) {
hmat_update_target_access(target, type, value,
- NODE_ACCESS_CLASS_0);
+ ACCESS_COORDINATE_LOCAL);
/* If the node has a CPU, update access 1 */
if (node_state(pxm_to_node(init_pxm), N_CPU))
hmat_update_target_access(target, type, value,
- NODE_ACCESS_CLASS_1);
+ ACCESS_COORDINATE_CPU);
}
}
@@ -709,7 +707,8 @@ static void hmat_update_target_attrs(struct memory_target *target,
*/
if (target->processor_pxm != PXM_INVAL) {
cpu_nid = pxm_to_node(target->processor_pxm);
- if (access == 0 || node_state(cpu_nid, N_CPU)) {
+ if (access == ACCESS_COORDINATE_LOCAL ||
+ node_state(cpu_nid, N_CPU)) {
set_bit(target->processor_pxm, p_nodes);
return;
}
@@ -737,7 +736,8 @@ static void hmat_update_target_attrs(struct memory_target *target,
list_for_each_entry(initiator, &initiators, node) {
u32 value;
- if (access == 1 && !initiator->has_cpu) {
+ if (access == ACCESS_COORDINATE_CPU &&
+ !initiator->has_cpu) {
clear_bit(initiator->processor_pxm, p_nodes);
continue;
}
@@ -782,8 +782,10 @@ static void hmat_register_target_initiators(struct memory_target *target)
{
static DECLARE_BITMAP(p_nodes, MAX_NUMNODES);
- __hmat_register_target_initiators(target, p_nodes, 0);
- __hmat_register_target_initiators(target, p_nodes, 1);
+ __hmat_register_target_initiators(target, p_nodes,
+ ACCESS_COORDINATE_LOCAL);
+ __hmat_register_target_initiators(target, p_nodes,
+ ACCESS_COORDINATE_CPU);
}
static void hmat_register_target_cache(struct memory_target *target)
@@ -854,8 +856,8 @@ static void hmat_register_target(struct memory_target *target)
if (!target->registered) {
hmat_register_target_initiators(target);
hmat_register_target_cache(target);
- hmat_register_target_perf(target, NODE_ACCESS_CLASS_0);
- hmat_register_target_perf(target, NODE_ACCESS_CLASS_1);
+ hmat_register_target_perf(target, ACCESS_COORDINATE_LOCAL);
+ hmat_register_target_perf(target, ACCESS_COORDINATE_CPU);
target->registered = true;
}
mutex_unlock(&target_lock);
@@ -927,7 +929,7 @@ static int hmat_calculate_adistance(struct notifier_block *self,
return NOTIFY_OK;
mutex_lock(&target_lock);
- hmat_update_target_attrs(target, p_nodes, 1);
+ hmat_update_target_attrs(target, p_nodes, ACCESS_COORDINATE_CPU);
mutex_unlock(&target_lock);
perf = &target->coord[1];
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 1c05640461dd..a73b0c9a401a 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -126,7 +126,7 @@ static void node_access_release(struct device *dev)
}
static struct node_access_nodes *node_init_node_access(struct node *node,
- unsigned int access)
+ enum access_coordinate_class access)
{
struct node_access_nodes *access_node;
struct device *dev;
@@ -191,7 +191,7 @@ static struct attribute *access_attrs[] = {
* @access: The access class the for the given attributes
*/
void node_set_perf_attrs(unsigned int nid, struct access_coordinate *coord,
- unsigned int access)
+ enum access_coordinate_class access)
{
struct node_access_nodes *c;
struct node *node;
@@ -689,7 +689,7 @@ int register_cpu_under_node(unsigned int cpu, unsigned int nid)
*/
int register_memory_node_under_compute_node(unsigned int mem_nid,
unsigned int cpu_nid,
- unsigned int access)
+ enum access_coordinate_class access)
{
struct node *init_node, *targ_node;
struct node_access_nodes *initiator, *target;
diff --git a/include/linux/node.h b/include/linux/node.h
index 25b66d705ee2..dfc004e4bee7 100644
--- a/include/linux/node.h
+++ b/include/linux/node.h
@@ -34,6 +34,18 @@ struct access_coordinate {
unsigned int write_latency;
};
+/*
+ * ACCESS_COORDINATE_LOCAL correlates to ACCESS CLASS 0
+ * - access_coordinate between target node and nearest initiator node
+ * ACCESS_COORDINATE_CPU correlates to ACCESS CLASS 1
+ * - access_coordinate between target node and nearest CPU node
+ */
+enum access_coordinate_class {
+ ACCESS_COORDINATE_LOCAL,
+ ACCESS_COORDINATE_CPU,
+ ACCESS_COORDINATE_MAX
+};
+
enum cache_indexing {
NODE_CACHE_DIRECT_MAP,
NODE_CACHE_INDEXED,
@@ -66,7 +78,7 @@ struct node_cache_attrs {
#ifdef CONFIG_HMEM_REPORTING
void node_add_cache(unsigned int nid, struct node_cache_attrs *cache_attrs);
void node_set_perf_attrs(unsigned int nid, struct access_coordinate *coord,
- unsigned access);
+ enum access_coordinate_class access);
#else
static inline void node_add_cache(unsigned int nid,
struct node_cache_attrs *cache_attrs)
@@ -75,7 +87,7 @@ static inline void node_add_cache(unsigned int nid,
static inline void node_set_perf_attrs(unsigned int nid,
struct access_coordinate *coord,
- unsigned access)
+ enum access_coordinate_class access)
{
}
#endif
@@ -137,7 +149,7 @@ extern void unregister_memory_block_under_nodes(struct memory_block *mem_blk);
extern int register_memory_node_under_compute_node(unsigned int mem_nid,
unsigned int cpu_nid,
- unsigned access);
+ enum access_coordinate_class access);
#else
static inline void node_dev_init(void)
{
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-08 10:22:04 +0300