From 071106ecf68c401173c58808b1cf5f68cc50d390 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 05 Jan 2024 08:39:27 +0000
Subject: [PATCH] change wifi driver to cypress
---
kernel/include/linux/cacheinfo.h | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/kernel/include/linux/cacheinfo.h b/kernel/include/linux/cacheinfo.h
index 66654e6..2f909ed 100644
--- a/kernel/include/linux/cacheinfo.h
+++ b/kernel/include/linux/cacheinfo.h
@@ -3,6 +3,7 @@
#define _LINUX_CACHEINFO_H
#include <linux/bitops.h>
+#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <linux/smp.h>
@@ -16,6 +17,8 @@
CACHE_TYPE_SEPARATE = CACHE_TYPE_INST | CACHE_TYPE_DATA,
CACHE_TYPE_UNIFIED = BIT(2),
};
+
+extern unsigned int coherency_max_size;
/**
* struct cacheinfo - represent a cache leaf node
@@ -99,4 +102,24 @@
const struct attribute_group *cache_get_priv_group(struct cacheinfo *this_leaf);
+/*
+ * Get the id of the cache associated with @cpu at level @level.
+ * cpuhp lock must be held.
+ */
+static inline int get_cpu_cacheinfo_id(int cpu, int level)
+{
+ struct cpu_cacheinfo *ci = get_cpu_cacheinfo(cpu);
+ int i;
+
+ for (i = 0; i < ci->num_leaves; i++) {
+ if (ci->info_list[i].level == level) {
+ if (ci->info_list[i].attributes & CACHE_ID)
+ return ci->info_list[i].id;
+ return -1;
+ }
+ }
+
+ return -1;
+}
+
#endif /* _LINUX_CACHEINFO_H */
--
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