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authorSudeep Holla <sudeep.holla@arm.com>2022-07-04 13:15:50 +0300
committerSudeep Holla <sudeep.holla@arm.com>2022-07-04 18:22:28 +0300
commit36bbc5b4ffab33ccac0f4db27f619a6ba7a4fd32 (patch)
treeb2440c643ee3117820167b7bf21f7222c402367b /include/linux/cacheinfo.h
parentcc1cfc47ea47187a21ec1f079b3c53264157fe15 (diff)
downloadlinux-36bbc5b4ffab33ccac0f4db27f619a6ba7a4fd32.tar.xz
cacheinfo: Allow early detection and population of cache attributes
Some architecture/platforms may need to setup cache properties very early in the boot along with other cpu topologies so that all these information can be used to build sched_domains which is used by the scheduler. Allow detect_cache_attributes to be called quite early during the boot. Link: https://lore.kernel.org/r/20220704101605.1318280-7-sudeep.holla@arm.com Tested-by: Ionela Voinescu <ionela.voinescu@arm.com> Tested-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'include/linux/cacheinfo.h')
-rw-r--r--include/linux/cacheinfo.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/cacheinfo.h b/include/linux/cacheinfo.h
index 7e429bc5c1a4..00b7a6ae8617 100644
--- a/include/linux/cacheinfo.h
+++ b/include/linux/cacheinfo.h
@@ -84,6 +84,7 @@ int populate_cache_leaves(unsigned int cpu);
int cache_setup_acpi(unsigned int cpu);
bool last_level_cache_is_valid(unsigned int cpu);
bool last_level_cache_is_shared(unsigned int cpu_x, unsigned int cpu_y);
+int detect_cache_attributes(unsigned int cpu);
#ifndef CONFIG_ACPI_PPTT
/*
* acpi_find_last_cache_level is only called on ACPI enabled