diff mbox series

[v7,04/12] x86/resctrl: Include new features in command line options

Message ID 166604559240.5345.4467065841093036343.stgit@bmoger-ubuntu
State New
Headers
Series x86/resctrl: Support for AMD QoS new features |

Commit Message

Moger, Babu Oct. 17, 2022, 10:26 p.m. UTC 
  Add the command line options to disable the new features.
smba : Slow Memory Bandwidth Allocation
bmec : Bandwidth Monitor Event Configuration.

Signed-off-by: Babu Moger <babu.moger@amd.com>
---
 Documentation/admin-guide/kernel-parameters.txt |    2 +-
 arch/x86/kernel/cpu/resctrl/core.c              |    4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index a465d5242774..f3f0870144fb 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5190,7 +5190,7 @@ 
 	rdt=		[HW,X86,RDT]
 			Turn on/off individual RDT features. List is:
 			cmt, mbmtotal, mbmlocal, l3cat, l3cdp, l2cat, l2cdp,
-			mba.
+			mba, smba, bmec.
 			E.g. to turn on cmt and turn off mba use:
 				rdt=cmt,!mba
 
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index efffce716f3a..c7561c613209 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -665,6 +665,8 @@  enum {
 	RDT_FLAG_L2_CAT,
 	RDT_FLAG_L2_CDP,
 	RDT_FLAG_MBA,
+	RDT_FLAG_SMBA,
+	RDT_FLAG_BMEC,
 };
 
 #define RDT_OPT(idx, n, f)	\
@@ -688,6 +690,8 @@  static struct rdt_options rdt_options[]  __initdata = {
 	RDT_OPT(RDT_FLAG_L2_CAT,    "l2cat",	X86_FEATURE_CAT_L2),
 	RDT_OPT(RDT_FLAG_L2_CDP,    "l2cdp",	X86_FEATURE_CDP_L2),
 	RDT_OPT(RDT_FLAG_MBA,	    "mba",	X86_FEATURE_MBA),
+	RDT_OPT(RDT_FLAG_SMBA,	    "smba",	X86_FEATURE_SMBA),
+	RDT_OPT(RDT_FLAG_BMEC,	    "bmec",	X86_FEATURE_BMEC),
 };
 #define NUM_RDT_OPTIONS ARRAY_SIZE(rdt_options)