From: Tony Luck <tony.luck@intel.com>
To: Fenghua Yu <fenghuay@nvidia.com>,
Reinette Chatre <reinette.chatre@intel.com>,
Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>,
Peter Newman <peternewman@google.com>,
James Morse <james.morse@arm.com>,
Babu Moger <babu.moger@amd.com>,
Drew Fustini <dfustini@baylibre.com>,
Dave Martin <Dave.Martin@arm.com>, Chen Yu <yu.c.chen@intel.com>,
David E Box <david.e.box@intel.com>,
x86@kernel.org
Cc: Christoph Hellwig <hch@infradead.org>,
linux-kernel@vger.kernel.org, patches@lists.linux.dev,
Tony Luck <tony.luck@intel.com>
Subject: [PATCH v12 08/25] x86/resctrl: Delete rdt_alloc_capable and rdt_mon_capable
Date: Wed, 16 Sep 2026 16:13:03 -0700 [thread overview]
Message-ID: <20260916231320.14502-9-tony.luck@intel.com> (raw)
In-Reply-To: <20260916231320.14502-1-tony.luck@intel.com>
These globals are no longer needed, delete them.
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
v12:
Changed names of local variables in get_rdt_resources()
---
arch/x86/include/asm/resctrl.h | 2 --
arch/x86/kernel/cpu/resctrl/core.c | 13 +++----------
arch/x86/kernel/cpu/resctrl/monitor.c | 6 ------
3 files changed, 3 insertions(+), 18 deletions(-)
diff --git a/arch/x86/include/asm/resctrl.h b/arch/x86/include/asm/resctrl.h
index fb6cfff82e2f..49b5357e2e5c 100644
--- a/arch/x86/include/asm/resctrl.h
+++ b/arch/x86/include/asm/resctrl.h
@@ -42,8 +42,6 @@ struct resctrl_pqr_state {
DECLARE_PER_CPU(struct resctrl_pqr_state, pqr_state);
-extern bool rdt_alloc_capable;
-extern bool rdt_mon_capable;
extern unsigned int __ro_after_init rdt_l3_mon_scale;
DECLARE_STATIC_KEY_FALSE(rdt_enable_key);
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index f2bf160d01c1..2e3b9c16cbda 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -45,12 +45,6 @@ static DEFINE_MUTEX(domain_list_lock);
*/
DEFINE_PER_CPU(struct resctrl_pqr_state, pqr_state);
-/*
- * Global boolean for rdt_alloc which is true if any
- * resource allocation is enabled.
- */
-bool rdt_alloc_capable;
-
static void mba_wrmsr_intel(struct msr_param *m);
static void cat_wrmsr(struct msr_param *m);
static void mba_wrmsr_amd(struct msr_param *m);
@@ -781,7 +775,6 @@ void resctrl_arch_pre_mount(void)
cpus_read_lock();
mutex_lock(&domain_list_lock);
r->mon_capable = true;
- rdt_mon_capable = true;
for_each_online_cpu(cpu)
domain_add_cpu_mon(cpu, r);
mutex_unlock(&domain_list_lock);
@@ -1026,10 +1019,10 @@ static __init void check_quirks(void)
static __init bool get_rdt_resources(void)
{
- rdt_alloc_capable = get_rdt_alloc_resources();
- rdt_mon_capable = get_rdt_mon_resources();
+ bool alloc = get_rdt_alloc_resources();
+ bool mon = get_rdt_mon_resources();
- return (rdt_mon_capable || rdt_alloc_capable);
+ return alloc || mon;
}
static __init void rdt_init_res_defs_intel(void)
diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c
index ab9cb34145c5..2f3e5b89a7fc 100644
--- a/arch/x86/kernel/cpu/resctrl/monitor.c
+++ b/arch/x86/kernel/cpu/resctrl/monitor.c
@@ -26,12 +26,6 @@
#include "internal.h"
-/*
- * Global boolean for rdt_monitor which is true if any
- * resource monitoring is enabled.
- */
-bool rdt_mon_capable;
-
/*
* Scale factor to convert L3 monitor events to bytes.
*/
--
2.55.0
next prev parent reply other threads:[~2026-09-16 23:13 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-16 23:12 [PATCH v12 00/25] Allow AET to use PMT as loadable module Tony Luck
2026-09-16 23:12 ` [PATCH v12 01/25] x86/cpufeatures: Add missing CQM feature dependency Tony Luck
2026-09-16 23:12 ` [PATCH v12 02/25] x86/resctrl: Check if monitoring features are supported Tony Luck
2026-09-16 23:12 ` [PATCH v12 03/25] x86/resctrl: Enumerate monitor features in rdt_get_l3_mon_config() Tony Luck
2026-09-16 23:12 ` [PATCH v12 04/25] x86/resctrl: Apply Intel MBM quirk from rdt_get_l3_mon_config() Tony Luck
2026-09-16 23:13 ` [PATCH v12 05/25] x86/resctrl: Delete resctrl_cpu_detect() Tony Luck
2026-09-16 23:13 ` [PATCH v12 06/25] arm,x86,fs/resctrl: Replace architecture resctrl_arch_{alloc,mon}_capable() Tony Luck
2026-09-16 23:13 ` [PATCH v12 07/25] x86/resctrl: Update special case for Intel Haswell enumeration Tony Luck
2026-09-16 23:13 ` Tony Luck [this message]
2026-09-16 23:13 ` [PATCH v12 09/25] fs/resctrl: Remove redundant calls to resctrl_{alloc,mon}_capable() Tony Luck
2026-09-16 23:13 ` [PATCH v12 10/25] x86/resctrl: Honor rdt=perf option to force enable AET perf events Tony Luck
2026-09-16 23:13 ` [PATCH v12 11/25] fs/resctrl: Add interface to disable a monitor event Tony Luck
2026-09-16 23:13 ` [PATCH v12 12/25] arm,x86,fs/resctrl: Allocate maximum needed rmid_ptrs[] Tony Luck
2026-09-16 23:13 ` [PATCH v12 13/25] arm,x86,fs/resctrl: Allocate right size for L3 monitor arrays Tony Luck
2026-09-16 23:13 ` [PATCH v12 14/25] fs/resctrl: Rebuild free RMID list on each mount Tony Luck
2026-09-16 23:13 ` [PATCH v12 15/25] x86,fs/resctrl: Handle systems where AET is the only resource Tony Luck
2026-09-16 23:13 ` [PATCH v12 16/25] x86/resctrl: Add PMT registration API for AET enumeration callbacks Tony Luck
2026-09-16 23:13 ` [PATCH v12 17/25] platform/x86/intel/pmt: Register enumeration functions with resctrl Tony Luck
2026-09-16 23:13 ` [PATCH v12 18/25] x86/resctrl: Use registered function pointers for AET enumeration Tony Luck
2026-09-16 23:13 ` [PATCH v12 19/25] arm,x86,fs/resctrl: Enumerate AET on every resctrl mount Tony Luck
2026-09-16 23:13 ` [PATCH v12 20/25] x86/resctrl: Enforce system RMID limit on AET Tony Luck
2026-09-16 23:13 ` [PATCH v12 21/25] x86/resctrl: Export interface to report telemetry unbind/remove Tony Luck
2026-09-16 23:13 ` [PATCH v12 22/25] platform/x86/intel/pmt: Inform resctrl when MMIO maps are being removed Tony Luck
2026-09-16 23:13 ` [PATCH v12 23/25] x86/resctrl: Require 64-bit x86 for resctrl support Tony Luck
2026-09-16 23:13 ` [PATCH v12 24/25] x86/resctrl: Simplify Kconfig options for resctrl Tony Luck
2026-09-16 23:13 ` [PATCH v12 25/25] x86,fs/resctrl: Document telemetry mount timing caveat Tony Luck
2026-09-17 16:32 ` [PATCH v12 00/25] Allow AET to use PMT as loadable module Luck, Tony
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