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Subject[RFC PATCH 1/7] x86/intel_rdt: Expose useful functions to all RDT code
Date
In preparation for support of restoring pseudo-locked regions two
functions are exposed to all RDT code: closid_alloc() and
closid_allocated().

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
arch/x86/kernel/cpu/intel_rdt.h | 2 ++
arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 4 ++--
2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h
index 4e588f36228f..7afbf1a746b7 100644
--- a/arch/x86/kernel/cpu/intel_rdt.h
+++ b/arch/x86/kernel/cpu/intel_rdt.h
@@ -536,6 +536,8 @@ int rdtgroup_pseudo_lock_create(struct rdtgroup *rdtgrp);
void rdtgroup_pseudo_lock_remove(struct rdtgroup *rdtgrp);
struct rdt_domain *get_domain_from_cpu(int cpu, struct rdt_resource *r);
int update_domains(struct rdt_resource *r, int closid);
+bool closid_allocated(unsigned int closid);
+int closid_alloc(void);
void closid_free(int closid);
int alloc_rmid(void);
void free_rmid(u32 rmid);
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index d6d7ea7349d0..73f7ff26e704 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -113,7 +113,7 @@ static void closid_init(void)
closid_free_map &= ~1;
}

-static int closid_alloc(void)
+int closid_alloc(void)
{
u32 closid = ffs(closid_free_map);

@@ -137,7 +137,7 @@ void closid_free(int closid)
* Return: true if @closid is currently associated with a resource group,
* false if @closid is free
*/
-static bool closid_allocated(unsigned int closid)
+bool closid_allocated(unsigned int closid)
{
return (closid_free_map & (1 << closid)) == 0;
}
--
2.17.0
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