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x86/cache: Rename config option to CONFIG_X86_RESCTRL

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CONFIG_RESCTRL is too generic. The final goal is to have a generic
option called like this which is selected by the arch-specific ones
CONFIG_X86_RESCTRL and CONFIG_ARM64_RESCTRL. The generic one will
cover the resctrl filesystem and other generic and shared bits of
functionality.

Signed-off-by: Borislav Petkov <bp@suse.de>
Suggested-by: Ingo Molnar <mingo@kernel.org>
Requested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Babu Moger <babu.moger@amd.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: James Morse <james.morse@arm.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20190108171401.GC12235@zn.tnic
This commit is contained in:
Borislav Petkov 2019-01-08 17:38:29 +01:00
parent a77d1d196b
commit 90802938f7
6 changed files with 8 additions and 8 deletions
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2
Documentation/x86/resctrl_ui.txt
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@ -9,7 +9,7 @@ Fenghua Yu <fenghua.yu@intel.com>
Tony Luck <tony.luck@intel.com>
Vikas Shivappa <vikas.shivappa@intel.com>
This feature is enabled by the CONFIG_RESCTRL and the X86 /proc/cpuinfo
This feature is enabled by the CONFIG_X86_RESCTRL and the x86 /proc/cpuinfo
flag bits:
RDT (Resource Director Technology) Allocation - "rdt_a"
CAT (Cache Allocation Technology) - "cat_l3", "cat_l2"

2
arch/x86/Kconfig
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@ -446,7 +446,7 @@ config RETPOLINE
branches. Requires a compiler with -mindirect-branch=thunk-extern
support for full protection. The kernel may run slower.
config RESCTRL
config X86_RESCTRL
bool "Resource Control support"
depends on X86 && (CPU_SUP_INTEL || CPU_SUP_AMD)
select KERNFS

4
arch/x86/include/asm/resctrl_sched.h
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@ -2,7 +2,7 @@
#ifndef _ASM_X86_RESCTRL_SCHED_H
#define _ASM_X86_RESCTRL_SCHED_H
#ifdef CONFIG_RESCTRL
#ifdef CONFIG_X86_RESCTRL
#include <linux/sched.h>
#include <linux/jump_label.h>
@ -88,6 +88,6 @@ static inline void resctrl_sched_in(void)
static inline void resctrl_sched_in(void) {}
#endif /* CONFIG_RESCTRL */
#endif /* CONFIG_X86_RESCTRL */
#endif /* _ASM_X86_RESCTRL_SCHED_H */

2
arch/x86/kernel/cpu/Makefile
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@ -39,7 +39,7 @@ obj-$(CONFIG_CPU_SUP_UMC_32) += umc.o
obj-$(CONFIG_X86_MCE) += mce/
obj-$(CONFIG_MTRR) += mtrr/
obj-$(CONFIG_MICROCODE) += microcode/
obj-$(CONFIG_RESCTRL) += resctrl/
obj-$(CONFIG_X86_RESCTRL) += resctrl/
obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o

4
arch/x86/kernel/cpu/resctrl/Makefile
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@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_RESCTRL) += core.o rdtgroup.o monitor.o
obj-$(CONFIG_RESCTRL) += ctrlmondata.o pseudo_lock.o
obj-$(CONFIG_X86_RESCTRL) += core.o rdtgroup.o monitor.o
obj-$(CONFIG_X86_RESCTRL) += ctrlmondata.o pseudo_lock.o
CFLAGS_pseudo_lock.o = -I$(src)

2
include/linux/sched.h
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@ -995,7 +995,7 @@ struct task_struct {
/* cg_list protected by css_set_lock and tsk->alloc_lock: */
struct list_head cg_list;
#endif
#ifdef CONFIG_RESCTRL
#ifdef CONFIG_X86_RESCTRL
u32 closid;
u32 rmid;
#endif