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Date: Tue, 13 Feb 2018 07:46:55 -0800 From: Reinette Chatre <reinette.chatre@...el.com> To: tglx@...utronix.de, fenghua.yu@...el.com, tony.luck@...el.com Cc: gavin.hindman@...el.com, vikas.shivappa@...ux.intel.com, dave.hansen@...el.com, mingo@...hat.com, hpa@...or.com, x86@...nel.org, linux-kernel@...r.kernel.org, Reinette Chatre <reinette.chatre@...el.com> Subject: [RFC PATCH V2 11/22] x86/intel_rdt: Associate pseudo-locked regions with its domain After a pseudo-locked region is locked it needs to be associated with the RDT domain representing the pseudo-locked cache so that its life cycle can be managed correctly. Only a single pseudo-locked region can exist on any cache instance so we maintain a single pointer to a pseudo-locked region from each RDT domain. Signed-off-by: Reinette Chatre <reinette.chatre@...el.com> --- arch/x86/kernel/cpu/intel_rdt.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h index 060a0976ac00..f0e020686e99 100644 --- a/arch/x86/kernel/cpu/intel_rdt.h +++ b/arch/x86/kernel/cpu/intel_rdt.h @@ -187,6 +187,8 @@ struct mbm_state { u64 prev_msr; }; +struct pseudo_lock_region; + /** * struct rdt_domain - group of cpus sharing an RDT resource * @list: all instances of this resource @@ -205,6 +207,7 @@ struct mbm_state { * @ctrl_val: array of cache or mem ctrl values (indexed by CLOSID) * @new_ctrl: new ctrl value to be loaded * @have_new_ctrl: did user provide new_ctrl for this domain + * @plr: pseudo-locked region associated with this domain */ struct rdt_domain { struct list_head list; @@ -220,6 +223,7 @@ struct rdt_domain { u32 *ctrl_val; u32 new_ctrl; bool have_new_ctrl; + struct pseudo_lock_region *plr; }; /** -- 2.13.6
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