From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt
---
kernel/include/linux/node.h | 94 +++++++++++++++++++++++++++++++++++++++--------
1 files changed, 78 insertions(+), 16 deletions(-)
diff --git a/kernel/include/linux/node.h b/kernel/include/linux/node.h
index a79ec44..8e5a298 100644
--- a/kernel/include/linux/node.h
+++ b/kernel/include/linux/node.h
@@ -17,13 +17,80 @@
#include <linux/device.h>
#include <linux/cpumask.h>
+#include <linux/list.h>
#include <linux/workqueue.h>
+
+/**
+ * struct node_hmem_attrs - heterogeneous memory performance attributes
+ *
+ * @read_bandwidth: Read bandwidth in MB/s
+ * @write_bandwidth: Write bandwidth in MB/s
+ * @read_latency: Read latency in nanoseconds
+ * @write_latency: Write latency in nanoseconds
+ */
+struct node_hmem_attrs {
+ unsigned int read_bandwidth;
+ unsigned int write_bandwidth;
+ unsigned int read_latency;
+ unsigned int write_latency;
+};
+
+enum cache_indexing {
+ NODE_CACHE_DIRECT_MAP,
+ NODE_CACHE_INDEXED,
+ NODE_CACHE_OTHER,
+};
+
+enum cache_write_policy {
+ NODE_CACHE_WRITE_BACK,
+ NODE_CACHE_WRITE_THROUGH,
+ NODE_CACHE_WRITE_OTHER,
+};
+
+/**
+ * struct node_cache_attrs - system memory caching attributes
+ *
+ * @indexing: The ways memory blocks may be placed in cache
+ * @write_policy: Write back or write through policy
+ * @size: Total size of cache in bytes
+ * @line_size: Number of bytes fetched on a cache miss
+ * @level: The cache hierarchy level
+ */
+struct node_cache_attrs {
+ enum cache_indexing indexing;
+ enum cache_write_policy write_policy;
+ u64 size;
+ u16 line_size;
+ u8 level;
+};
+
+#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 node_hmem_attrs *hmem_attrs,
+ unsigned access);
+#else
+static inline void node_add_cache(unsigned int nid,
+ struct node_cache_attrs *cache_attrs)
+{
+}
+
+static inline void node_set_perf_attrs(unsigned int nid,
+ struct node_hmem_attrs *hmem_attrs,
+ unsigned access)
+{
+}
+#endif
struct node {
struct device dev;
+ struct list_head access_list;
#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HUGETLBFS)
struct work_struct node_work;
+#endif
+#ifdef CONFIG_HMEM_REPORTING
+ struct list_head cache_attrs;
+ struct device *cache_dev;
#endif
};
@@ -32,15 +99,14 @@
typedef void (*node_registration_func_t)(struct node *);
#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_NUMA)
-int link_mem_sections(int nid, unsigned long start_pfn,
- unsigned long end_pfn,
- enum meminit_context context);
+void link_mem_sections(int nid, unsigned long start_pfn,
+ unsigned long end_pfn,
+ enum meminit_context context);
#else
-static inline int link_mem_sections(int nid, unsigned long start_pfn,
- unsigned long end_pfn,
- enum meminit_context context)
+static inline void link_mem_sections(int nid, unsigned long start_pfn,
+ unsigned long end_pfn,
+ enum meminit_context context)
{
- return 0;
}
#endif
@@ -63,8 +129,7 @@
if (error)
return error;
/* link memory sections under this node */
- error = link_mem_sections(nid, start_pfn, end_pfn,
- MEMINIT_EARLY);
+ link_mem_sections(nid, start_pfn, end_pfn, MEMINIT_EARLY);
}
return error;
@@ -73,9 +138,11 @@
extern void unregister_one_node(int nid);
extern int register_cpu_under_node(unsigned int cpu, unsigned int nid);
extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid);
-extern int register_mem_sect_under_node(struct memory_block *mem_blk,
- void *arg);
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);
#ifdef CONFIG_HUGETLBFS
extern void register_hugetlbfs_with_node(node_registration_func_t doregister,
@@ -99,11 +166,6 @@
return 0;
}
static inline int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
-{
- return 0;
-}
-static inline int register_mem_sect_under_node(struct memory_block *mem_blk,
- void *arg)
{
return 0;
}
--
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