From: Reinette Chatre <reinette.chatre@intel.com>
To: tglx@linutronix.de, fenghua.yu@intel.com, tony.luck@intel.com,
vikas.shivappa@linux.intel.com
Cc: gavin.hindman@intel.com, jithu.joseph@intel.com,
dave.hansen@intel.com, mingo@redhat.com, hpa@zytor.com,
x86@kernel.org, linux-kernel@vger.kernel.org,
Reinette Chatre <reinette.chatre@intel.com>
Subject: [RFC PATCH 1/7] x86/intel_rdt: Expose useful functions to all RDT code
Date: Tue, 24 Jul 2018 13:40:12 -0700 [thread overview]
Message-ID: <ff52dcc8c7afd6186831fd01af255f6752953135.1532463771.git.reinette.chatre@intel.com> (raw)
In-Reply-To: <cover.1532463771.git.reinette.chatre@intel.com>
In-Reply-To: <cover.1532463771.git.reinette.chatre@intel.com>
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
next prev parent reply other threads:[~2018-07-24 20:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-24 20:40 [RFC PATCH 0/7] x86/intel_rdt: Restoration of Cache Pseudo-Locked regions Reinette Chatre
2018-07-24 20:40 ` Reinette Chatre [this message]
2018-07-24 20:40 ` [RFC PATCH 2/7] x86/intel_rdt: Enable a pseudo-locked region to be restored Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 3/7] x86/intel_rdt: Enable user to trigger pseudo-locked region restore Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 4/7] x86/intel_rdt: Support restore of all pseudo-locked regions Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 5/7] x86/intel_rdt: Trigger pseudo-lock restore after wbinvd call Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 6/7] mtd: replace direct wbinvd invoke with kernel api Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 7/7] video: fbdev: i810: " Reinette Chatre
2018-08-03 11:45 ` [RFC PATCH 0/7] x86/intel_rdt: Restoration of Cache Pseudo-Locked regions Thomas Gleixner
2018-08-03 14:23 ` Dave Hansen
2018-08-03 14:48 ` Peter Zijlstra
2018-08-03 15:40 ` Reinette Chatre
2018-08-03 15:51 ` Peter Zijlstra
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