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authorLinus Torvalds <torvalds@linux-foundation.org>2023-02-21 19:38:45 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2023-02-21 19:38:45 +0300
commitaa8c3db40adf1204e47dac9c410eea82567fe82d (patch)
treee1dd6e8cb9d8d942196c00924a52f37585358b5a /include
parent1adce1b9440cdf0c427419b99bc9db756b5ad931 (diff)
parent793207bad71c5339c614d12ac21d627da7bf771d (diff)
downloadlinux-aa8c3db40adf1204e47dac9c410eea82567fe82d.tar.xz
Merge tag 'x86_cache_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 resource control updates from Borislav Petkov: - Add support for a new AMD feature called slow memory bandwidth allocation. Its goal is to control resource allocation in external slow memory which is connected to the machine like for example through CXL devices, accelerators etc * tag 'x86_cache_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/resctrl: Fix a silly -Wunused-but-set-variable warning Documentation/x86: Update resctrl.rst for new features x86/resctrl: Add interface to write mbm_local_bytes_config x86/resctrl: Add interface to write mbm_total_bytes_config x86/resctrl: Add interface to read mbm_local_bytes_config x86/resctrl: Add interface to read mbm_total_bytes_config x86/resctrl: Support monitor configuration x86/resctrl: Add __init attribute to rdt_get_mon_l3_config() x86/resctrl: Detect and configure Slow Memory Bandwidth Allocation x86/resctrl: Include new features in command line options x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag x86/resctrl: Add a new resource type RDT_RESOURCE_SMBA x86/cpufeatures: Add Slow Memory Bandwidth Allocation feature flag x86/resctrl: Replace smp_call_function_many() with on_each_cpu_mask()
Diffstat (limited to 'include')
-rw-r--r--include/linux/resctrl.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h
index 0cee154abc9f..8334eeacfec5 100644
--- a/include/linux/resctrl.h
+++ b/include/linux/resctrl.h
@@ -250,6 +250,17 @@ int resctrl_arch_rmid_read(struct rdt_resource *r, struct rdt_domain *d,
void resctrl_arch_reset_rmid(struct rdt_resource *r, struct rdt_domain *d,
u32 rmid, enum resctrl_event_id eventid);
+/**
+ * resctrl_arch_reset_rmid_all() - Reset all private state associated with
+ * all rmids and eventids.
+ * @r: The resctrl resource.
+ * @d: The domain for which all architectural counter state will
+ * be cleared.
+ *
+ * This can be called from any CPU.
+ */
+void resctrl_arch_reset_rmid_all(struct rdt_resource *r, struct rdt_domain *d);
+
extern unsigned int resctrl_rmid_realloc_threshold;
extern unsigned int resctrl_rmid_realloc_limit;