diff mbox series

[v7,02/12] x86/resctrl: Add a new resource type RDT_RESOURCE_SMBA

Message ID 166604557814.5345.10995820967282890535.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 a new resource type RDT_RESOURCE_SMBA to handle the QoS
enforcement policies on the external slow memory.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/resctrl/core.c     |   12 ++++++++++++
 arch/x86/kernel/cpu/resctrl/internal.h |    1 +
 2 files changed, 13 insertions(+)
diff mbox series

Patch

diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index de62b0b87ced..efffce716f3a 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -106,6 +106,18 @@  struct rdt_hw_resource rdt_resources_all[] = {
 			.fflags			= RFTYPE_RES_MB,
 		},
 	},
+	[RDT_RESOURCE_SMBA] =
+	{
+		.r_resctrl = {
+			.rid			= RDT_RESOURCE_SMBA,
+			.name			= "SMBA",
+			.cache_level		= 3,
+			.domains		= domain_init(RDT_RESOURCE_SMBA),
+			.parse_ctrlval		= parse_bw,
+			.format_str		= "%d=%*u",
+			.fflags			= RFTYPE_RES_MB,
+		},
+	},
 };
 
 /*
diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h
index 5f7128686cfd..43d9f6f5a931 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -419,6 +419,7 @@  enum resctrl_res_level {
 	RDT_RESOURCE_L3,
 	RDT_RESOURCE_L2,
 	RDT_RESOURCE_MBA,
+	RDT_RESOURCE_SMBA,
 
 	/* Must be the last */
 	RDT_NUM_RESOURCES,