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From: Babu Moger <babu.moger@amd.com>
To: <corbet@lwn.net>, <reinette.chatre@intel.com>,
	<tglx@linutronix.de>, <mingo@redhat.com>, <bp@alien8.de>
Cc: <fenghua.yu@intel.com>, <dave.hansen@linux.intel.com>,
	<x86@kernel.org>, <hpa@zytor.com>, <paulmck@kernel.org>,
	<akpm@linux-foundation.org>, <quic_neeraju@quicinc.com>,
	<rdunlap@infradead.org>, <damien.lemoal@opensource.wdc.com>,
	<songmuchun@bytedance.com>, <peterz@infradead.org>,
	<jpoimboe@kernel.org>, <pbonzini@redhat.com>,
	<babu.moger@amd.com>, <chang.seok.bae@intel.com>,
	<pawan.kumar.gupta@linux.intel.com>, <jmattson@google.com>,
	<daniel.sneddon@linux.intel.com>, <sandipan.das@amd.com>,
	<tony.luck@intel.com>, <james.morse@arm.com>,
	<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<bagasdotme@gmail.com>, <eranian@google.com>,
	<christophe.leroy@csgroup.eu>,
	<pawan.kumar.gupta@linux.intel.com>, <jarkko@kernel.org>,
	<adrian.hunter@intel.com>, <quic_jiles@quicinc.com>,
	<peternewman@google.com>, <babu.moger@amd.com>
Subject: [PATCH v7 2/8] x86/resctrl: Simplify rftype flag definitions
Date: Fri, 11 Aug 2023 15:08:37 -0500	[thread overview]
Message-ID: <169178451786.1147205.17416534865851883140.stgit@bmoger-ubuntu> (raw)
In-Reply-To: <169178429591.1147205.4030367096506551808.stgit@bmoger-ubuntu>

The rftype flags are bitmaps used for adding files under resctrl
filesystem. Some of these bitmaps have one extra level of indirection
which is not necessary.

Make them all direct definition to be consistent and easier to read.

Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Babu Moger <babu.moger@amd.com>
---
 arch/x86/kernel/cpu/resctrl/internal.h |    9 +++------
 arch/x86/kernel/cpu/resctrl/rdtgroup.c |    6 +++++-
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h
index 85ceaf9a31ac..62767774810d 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -243,12 +243,9 @@ struct rdtgroup {
  */
 #define RFTYPE_INFO			BIT(0)
 #define RFTYPE_BASE			BIT(1)
-#define RF_CTRLSHIFT			4
-#define RF_MONSHIFT			5
-#define RF_TOPSHIFT			6
-#define RFTYPE_CTRL			BIT(RF_CTRLSHIFT)
-#define RFTYPE_MON			BIT(RF_MONSHIFT)
-#define RFTYPE_TOP			BIT(RF_TOPSHIFT)
+#define RFTYPE_CTRL			BIT(4)
+#define RFTYPE_MON			BIT(5)
+#define RFTYPE_TOP			BIT(6)
 #define RFTYPE_RES_CACHE		BIT(8)
 #define RFTYPE_RES_MB			BIT(9)
 #define RF_CTRL_INFO			(RFTYPE_INFO | RFTYPE_CTRL)
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index 8c91c333f9b3..2f1b9f69326f 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -3242,7 +3242,11 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
 		goto out_destroy;
 	}
 
-	files = RFTYPE_BASE | BIT(RF_CTRLSHIFT + rtype);
+	if (rtype == RDTCTRL_GROUP)
+		files = RFTYPE_BASE | RFTYPE_CTRL;
+	else
+		files = RFTYPE_BASE | RFTYPE_MON;
+
 	ret = rdtgroup_add_files(kn, files);
 	if (ret) {
 		rdt_last_cmd_puts("kernfs fill error\n");



  parent reply	other threads:[~2023-08-11 20:09 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-11 20:08 [PATCH v7 0/8] x86/resctrl: Miscellaneous resctrl features Babu Moger
2023-08-11 20:08 ` [PATCH v7 1/8] x86/resctrl: Add multiple tasks to the resctrl group at once Babu Moger
2023-08-15 22:43   ` Reinette Chatre
2023-08-11 20:08 ` Babu Moger [this message]
2023-08-11 20:09 ` [PATCH v7 3/8] x86/resctrl: Rename rftype flags for consistency Babu Moger
2023-08-11 20:09 ` [PATCH v7 4/8] x86/resctrl: Add comments on RFTYPE flags hierarchy Babu Moger
2023-08-15 22:45   ` Reinette Chatre
2023-08-16 15:34     ` Moger, Babu
2023-08-16 18:36       ` Reinette Chatre
2023-08-17 14:20         ` Moger, Babu
2023-08-17 15:37           ` Reinette Chatre
2023-08-17 17:07             ` Moger, Babu
2023-08-17 17:42               ` Reinette Chatre
2023-08-17 19:21                 ` Moger, Babu
2023-08-11 20:09 ` [PATCH v7 5/8] x86/resctrl: Unwind the errors inside rdt_enable_ctx() Babu Moger
2023-08-15 22:47   ` Reinette Chatre
2023-08-16 18:17     ` Moger, Babu
2023-08-16 19:07       ` Reinette Chatre
2023-08-17 14:22         ` Moger, Babu
2023-08-11 20:10 ` [PATCH v7 6/8] x86/resctrl: Move default control group creation during mount Babu Moger
2023-08-15 22:50   ` Reinette Chatre
2023-08-16 19:14     ` Moger, Babu
2023-08-16 23:02       ` Reinette Chatre
2023-08-17 14:23         ` Moger, Babu
2023-08-11 20:10 ` [PATCH v7 7/8] x86/resctrl: Introduce "-o debug" mount option Babu Moger
2023-08-15 22:51   ` Reinette Chatre
2023-08-16 19:15     ` Moger, Babu
2023-08-11 20:10 ` [PATCH v7 8/8] x86/resctrl: Display hardware ids of resource groups Babu Moger
2023-08-15 22:52   ` Reinette Chatre
2023-08-17 19:24     ` Moger, Babu

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