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Subject[tip:x86/cache] x86/intel_rdt: Introduce a common compile option for RDT
Commit-ID:  f01d7d51f577b5dc0fa5919ab8a9228e2bf49f3e
Gitweb: http://git.kernel.org/tip/f01d7d51f577b5dc0fa5919ab8a9228e2bf49f3e
Author: Vikas Shivappa <vikas.shivappa@linux.intel.com>
AuthorDate: Tue, 25 Jul 2017 14:14:22 -0700
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Tue, 1 Aug 2017 22:41:19 +0200

x86/intel_rdt: Introduce a common compile option for RDT

We currently have a CONFIG_RDT_A which is for RDT(Resource directory
technology) allocation based resctrl filesystem interface. As a
preparation to add support for RDT monitoring as well into the same
resctrl filesystem, change the config option to be CONFIG_RDT which
would include both RDT allocation and monitoring code.

No functional change.

Signed-off-by: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: ravi.v.shankar@intel.com
Cc: tony.luck@intel.com
Cc: fenghua.yu@intel.com
Cc: peterz@infradead.org
Cc: eranian@google.com
Cc: vikas.shivappa@intel.com
Cc: ak@linux.intel.com
Cc: davidcc@google.com
Cc: reinette.chatre@intel.com
Link: http://lkml.kernel.org/r/1501017287-28083-4-git-send-email-vikas.shivappa@linux.intel.com

---
arch/x86/Kconfig | 12 ++++++------
arch/x86/include/asm/intel_rdt.h | 4 ++--
arch/x86/kernel/cpu/Makefile | 2 +-
include/linux/sched.h | 2 +-
4 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 781521b..b1abda7 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -424,16 +424,16 @@ config GOLDFISH
def_bool y
depends on X86_GOLDFISH

-config INTEL_RDT_A
- bool "Intel Resource Director Technology Allocation support"
+config INTEL_RDT
+ bool "Intel Resource Director Technology support"
default n
depends on X86 && CPU_SUP_INTEL
select KERNFS
help
- Select to enable resource allocation which is a sub-feature of
- Intel Resource Director Technology(RDT). More information about
- RDT can be found in the Intel x86 Architecture Software
- Developer Manual.
+ Select to enable resource allocation and monitoring which are
+ sub-features of Intel Resource Director Technology(RDT). More
+ information about RDT can be found in the Intel x86
+ Architecture Software Developer Manual.

Say N if unsure.

diff --git a/arch/x86/include/asm/intel_rdt.h b/arch/x86/include/asm/intel_rdt.h
index 597dc49..ae1efc3 100644
--- a/arch/x86/include/asm/intel_rdt.h
+++ b/arch/x86/include/asm/intel_rdt.h
@@ -1,7 +1,7 @@
#ifndef _ASM_X86_INTEL_RDT_H
#define _ASM_X86_INTEL_RDT_H

-#ifdef CONFIG_INTEL_RDT_A
+#ifdef CONFIG_INTEL_RDT

#include <linux/sched.h>
#include <linux/kernfs.h>
@@ -282,5 +282,5 @@ static inline void intel_rdt_sched_in(void)

static inline void intel_rdt_sched_in(void) {}

-#endif /* CONFIG_INTEL_RDT_A */
+#endif /* CONFIG_INTEL_RDT */
#endif /* _ASM_X86_INTEL_RDT_H */
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index cdf8249..3622ca2 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -33,7 +33,7 @@ obj-$(CONFIG_CPU_SUP_CENTAUR) += centaur.o
obj-$(CONFIG_CPU_SUP_TRANSMETA_32) += transmeta.o
obj-$(CONFIG_CPU_SUP_UMC_32) += umc.o

-obj-$(CONFIG_INTEL_RDT_A) += intel_rdt.o intel_rdt_rdtgroup.o intel_rdt_schemata.o
+obj-$(CONFIG_INTEL_RDT) += intel_rdt.o intel_rdt_rdtgroup.o intel_rdt_schemata.o

obj-$(CONFIG_X86_MCE) += mcheck/
obj-$(CONFIG_MTRR) += mtrr/
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8337e2d..20b2ff2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -898,7 +898,7 @@ struct task_struct {
/* cg_list protected by css_set_lock and tsk->alloc_lock: */
struct list_head cg_list;
#endif
-#ifdef CONFIG_INTEL_RDT_A
+#ifdef CONFIG_INTEL_RDT
int closid;
#endif
#ifdef CONFIG_FUTEX
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