From: Tony Luck <tony.luck@intel.com>
To: Fenghua Yu <fenghua.yu@intel.com>,
Reinette Chatre <reinette.chatre@intel.com>,
Peter Newman <peternewman@google.com>,
Jonathan Corbet <corbet@lwn.net>,
x86@kernel.org
Cc: Shaopeng Tan <tan.shaopeng@fujitsu.com>,
James Morse <james.morse@arm.com>,
Jamie Iles <quic_jiles@quicinc.com>,
Babu Moger <babu.moger@amd.com>,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
patches@lists.linux.dev, Tony Luck <tony.luck@intel.com>
Subject: [PATCH 3/7] x86/resctrl: Add a new node-scoped resource to rdt_resources_all[]
Date: Thu, 26 Jan 2023 10:41:53 -0800 [thread overview]
Message-ID: <20230126184157.27626-4-tony.luck@intel.com> (raw)
In-Reply-To: <20230126184157.27626-1-tony.luck@intel.com>
Add a placeholder in the array of struct rdt_hw_resource to be used
for event monitoring of systems with Sub-NUMA Cluster enabled.
Update get_domain_id() to handle SCOPE_NODE.
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
arch/x86/kernel/cpu/resctrl/internal.h | 2 ++
arch/x86/kernel/cpu/resctrl/core.c | 12 ++++++++++++
2 files changed, 14 insertions(+)
diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h
index 15cea517efaa..39a62babd60b 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -409,12 +409,14 @@ enum resctrl_res_level {
RDT_RESOURCE_L3,
RDT_RESOURCE_L2,
RDT_RESOURCE_MBA,
+ RDT_RESOURCE_NODE,
/* Must be the last */
RDT_NUM_RESOURCES,
};
enum resctrl_scope {
+ SCOPE_NODE,
SCOPE_L2_CACHE = 2,
SCOPE_L3_CACHE = 3
};
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index 6914232acf84..19be6fe42ef3 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -100,6 +100,16 @@ struct rdt_hw_resource rdt_resources_all[] = {
.fflags = RFTYPE_RES_MB,
},
},
+ [RDT_RESOURCE_NODE] =
+ {
+ .r_resctrl = {
+ .rid = RDT_RESOURCE_NODE,
+ .name = "L3",
+ .scope = SCOPE_NODE,
+ .domains = domain_init(RDT_RESOURCE_NODE),
+ .fflags = RFTYPE_RES_MB,
+ },
+ },
};
/*
@@ -464,6 +474,8 @@ static int arch_domain_mbm_alloc(u32 num_rmid, struct rdt_hw_domain *hw_dom)
static int get_domain_id(int cpu, enum resctrl_scope scope)
{
+ if (scope == SCOPE_NODE)
+ return cpu_to_node(cpu);
return get_cpu_cacheinfo_id(cpu, scope);
}
--
2.39.1
next prev parent reply other threads:[~2023-01-26 18:42 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-26 18:41 [PATCH 0/7] x86/resctrl: Add support for Sub-NUMA cluster (SNC) systems Tony Luck
2023-01-26 18:41 ` [PATCH 1/7] x86/resctrl: Refactor in preparation for node-scoped resources Tony Luck
2023-01-26 18:41 ` [PATCH 2/7] x86/resctrl: Remove hard code of RDT_RESOURCE_L3 in monitor.c Tony Luck
2023-01-27 4:51 ` Yu, Fenghua
2023-01-26 18:41 ` Tony Luck [this message]
2023-01-27 5:24 ` [PATCH 3/7] x86/resctrl: Add a new node-scoped resource to rdt_resources_all[] Yu, Fenghua
2023-01-27 16:02 ` Peter Newman
2023-01-27 18:23 ` Luck, Tony
2023-01-28 2:25 ` Yu, Fenghua
2023-01-28 2:22 ` Yu, Fenghua
2023-01-28 2:36 ` Yu, Fenghua
2023-01-30 19:04 ` Luck, Tony
2023-02-28 14:27 ` Moger, Babu
2023-02-28 17:05 ` Luck, Tony
2023-01-26 18:41 ` [PATCH 4/7] x86/resctrl: Add code to setup monitoring at L3 or NODE scope Tony Luck
2023-02-28 17:13 ` James Morse
2023-02-28 17:28 ` Luck, Tony
2023-01-26 18:41 ` [PATCH 5/7] x86/resctrl: Add a new "snc_ways" file to the monitoring info directory Tony Luck
2023-02-28 17:13 ` James Morse
2023-02-28 17:44 ` Luck, Tony
2023-03-03 18:32 ` James Morse
2023-01-26 18:41 ` [PATCH 6/7] x86/resctrl: Update documentation with Sub-NUMA cluster changes Tony Luck
2023-02-28 17:14 ` James Morse
2023-01-26 18:41 ` [PATCH 7/7] x86/resctrl: Determine if Sub-NUMA Cluster is enabled and initialize Tony Luck
2023-02-27 13:30 ` Peter Newman
2023-03-10 17:30 ` Tony Luck
2023-03-13 9:19 ` Peter Newman
2023-03-13 16:38 ` Luck, Tony
2023-02-28 19:51 ` Moger, Babu
2023-03-14 20:23 ` Tony Luck
[not found] ` <85d7e70a-b9c8-6551-b1ac-229b51ee18d7@amd.com>
2023-02-28 20:39 ` Luck, Tony
2023-02-28 22:31 ` Moger, Babu
2023-02-28 17:12 ` [PATCH 0/7] x86/resctrl: Add support for Sub-NUMA cluster (SNC) systems James Morse
2023-02-28 18:04 ` Luck, Tony
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