Commit 90802938 authored by Borislav Petkov's avatar Borislav Petkov
Browse files

x86/cache: Rename config option to CONFIG_X86_RESCTRL 



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: default avatarBorislav Petkov <bp@suse.de>
Suggested-by: default avatarIngo Molnar <mingo@kernel.org>
Requested-by: default avatarLinus 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
parent a77d1d19

Documentation/x86/resctrl_ui.txt

+1 −1
Original line number Diff line number Diff line
@@ -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"

arch/x86/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -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

arch/x86/include/asm/resctrl_sched.h

+2 −2
Original line number Diff line number Diff line
@@ -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 */

arch/x86/kernel/cpu/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -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

arch/x86/kernel/cpu/resctrl/Makefile

+2 −2
Original line number Diff line number Diff line 
# 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)

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