[PATCH v6 04/21] cacheinfo: Move cache_leaves_are_shared out of CONFIG_OF
From: Sudeep Holla <hidden>
Date: 2022-07-04 10:17:09
Also in:
linux-riscv, lkml
Subsystem:
driver core, kobjects, debugfs and sysfs, the rest · Maintainers:
Greg Kroah-Hartman, "Rafael J. Wysocki", Danilo Krummrich, Linus Torvalds
cache_leaves_are_shared is already used even with ACPI and PPTT. It checks if the cache leaves are the shared based on fw_token pointer. However it is defined conditionally only if CONFIG_OF is enabled which is wrong. Move the function cache_leaves_are_shared out of CONFIG_OF and keep it generic. It also handles the case where both OF and ACPI is not defined. Tested-by: Ionela Voinescu <redacted> Reviewed-by: Gavin Shan <redacted> Signed-off-by: Sudeep Holla <redacted> --- drivers/base/cacheinfo.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-)
diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c
index e13ef41763e4..2cea9201f31c 100644
--- a/drivers/base/cacheinfo.c
+++ b/drivers/base/cacheinfo.c@@ -33,13 +33,21 @@ struct cpu_cacheinfo *get_cpu_cacheinfo(unsigned int cpu) return ci_cacheinfo(cpu); } -#ifdef CONFIG_OF static inline bool cache_leaves_are_shared(struct cacheinfo *this_leaf, struct cacheinfo *sib_leaf) { + /* + * For non DT/ACPI systems, assume unique level 1 caches, + * system-wide shared caches for all other levels. This will be used + * only if arch specific code has not populated shared_cpu_map + */ + if (!(IS_ENABLED(CONFIG_OF) || IS_ENABLED(CONFIG_ACPI))) + return !(this_leaf->level == 1); + return sib_leaf->fw_token == this_leaf->fw_token; } +#ifdef CONFIG_OF /* OF properties to query for a given cache type */ struct cache_type_info { const char *size_prop;
@@ -193,16 +201,6 @@ static int cache_setup_of_node(unsigned int cpu) } #else static inline int cache_setup_of_node(unsigned int cpu) { return 0; } -static inline bool cache_leaves_are_shared(struct cacheinfo *this_leaf, - struct cacheinfo *sib_leaf) -{ - /* - * For non-DT/ACPI systems, assume unique level 1 caches, system-wide - * shared caches for all other levels. This will be used only if - * arch specific code has not populated shared_cpu_map - */ - return !(this_leaf->level == 1); -} #endif int __weak cache_setup_acpi(unsigned int cpu)
--
2.37.0
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