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From: Babu Moger <babu.moger@amd.com>
To: <fenghua.yu@intel.com>, <reinette.chatre@intel.com>,
	<tglx@linutronix.de>, <mingo@redhat.com>, <bp@alien8.de>
Cc: <eranian@google.com>, <dave.hansen@linux.intel.com>,
	<x86@kernel.org>, <hpa@zytor.com>, <corbet@lwn.net>,
	<hpa@zytor.com>, <linux-kernel@vger.kernel.org>,
	<linux-doc@vger.kernel.org>
Subject: [PATCH v2 03/10] x86/resctrl: Add a new resource type RDT_RESOURCE_SMBA
Date: Mon, 1 Aug 2022 15:55:59 -0500	[thread overview]
Message-ID: <165938735951.724959.5927072727388257548.stgit@bmoger-ubuntu> (raw)
In-Reply-To: <165938717220.724959.10931629283087443782.stgit@bmoger-ubuntu>

Adds 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>
---
 arch/x86/kernel/cpu/resctrl/core.c     |   12 ++++++++++++
 arch/x86/kernel/cpu/resctrl/internal.h |    1 +
 2 files changed, 13 insertions(+)

diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index a5c51a14fbce..6c38427b71a2 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -100,6 +100,18 @@ struct rdt_hw_resource rdt_resources_all[] = {
 			.fflags			= RFTYPE_RES_MB,
 		},
 	},
+	[RDT_RESOURCE_SMBA] =
+	{
+		.r_resctrl = {
+			.rid			= RDT_RESOURCE_SMBA,
+			.name			= "SB",
+			.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 1d647188a43b..24a1dfeb6cb2 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -418,6 +418,7 @@ enum resctrl_res_level {
 	RDT_RESOURCE_L3,
 	RDT_RESOURCE_L2,
 	RDT_RESOURCE_MBA,
+	RDT_RESOURCE_SMBA,
 
 	/* Must be the last */
 	RDT_NUM_RESOURCES,



  parent reply	other threads:[~2022-08-01 20:56 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-01 20:55 [PATCH v2 00/10] x86/resctrl: Support for AMD QoS new features and bug fix Babu Moger
2022-08-01 20:55 ` [PATCH v2 01/10] x86/resctrl: Fix min_cbm_bits for AMD Babu Moger
2022-08-01 20:55 ` [PATCH v2 02/10] x86/cpufeatures: Add Slow Memory Bandwidth Allocation feature flag Babu Moger
2022-08-01 20:55 ` Babu Moger [this message]
2022-08-01 20:56 ` [PATCH v2 04/10] x86/resctrl: Detect and configure Slow Memory Bandwidth allocation Babu Moger
2022-08-01 20:56 ` [PATCH v2 05/10] x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag Babu Moger
2022-08-01 20:56 ` [PATCH v2 06/10] x86/resctrl: Introduce mon_configurable to detect Bandwidth Monitoring Event Configuration Babu Moger
2022-08-01 20:56 ` [PATCH v2 07/10] x86/resctrl: Add sysfs interface files to read/write event configuration Babu Moger
2022-08-01 20:56 ` [PATCH v2 08/10] x86/resctrl: Add the sysfs interface to read the " Babu Moger
2022-08-01 20:56 ` [PATCH v2 09/10] x86/resctrl: Add sysfs interface to write " Babu Moger
2022-08-01 20:56 ` [PATCH v2 10/10] Documentation/x86: Update resctrl_ui.rst for new features Babu Moger
2022-08-03  3:50   ` Bagas Sanjaya
2022-08-03 15:59     ` Moger, Babu
2022-08-04  7:57       ` Bagas Sanjaya
2022-08-02  2:16 ` [PATCH v2 00/10] x86/resctrl: Support for AMD QoS new features and bug fix Bagas Sanjaya
2022-08-02  9:39   ` Ingo Molnar
2022-08-02 13:41     ` Moger, Babu

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