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>, <jarkko@kernel.org>,
<adrian.hunter@intel.com>, <quic_jiles@quicinc.com>,
<peternewman@google.com>
Subject: [PATCH v9 2/9] x86/resctrl: Simplify rftype flag definitions
Date: Thu, 7 Sep 2023 18:51:21 -0500 [thread overview]
Message-ID: <20230907235128.19120-3-babu.moger@amd.com> (raw)
In-Reply-To: <20230907235128.19120-1-babu.moger@amd.com>
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>
Reviewed-by: Fenghua Yu <fenghua.yu@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 f0d163950969..7ddfa4b470e6 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");
--
2.34.1
next prev parent reply other threads:[~2023-09-07 23:51 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-07 23:51 [PATCH v9 0/9] x86/resctrl: Miscellaneous resctrl features Babu Moger
2023-09-07 23:51 ` [PATCH v9 1/9] x86/resctrl: Add multiple tasks to the resctrl group at once Babu Moger
2023-09-11 17:51 ` Fenghua Yu
2023-09-07 23:51 ` Babu Moger [this message]
2023-09-07 23:51 ` [PATCH v9 3/9] x86/resctrl: Rename rftype flags for consistency Babu Moger
2023-09-07 23:51 ` [PATCH v9 4/9] x86/resctrl: Add comments on RFTYPE flags hierarchy Babu Moger
2023-09-11 17:56 ` Fenghua Yu
2023-09-07 23:51 ` [PATCH v9 5/9] x86/resctrl: Unwind the errors inside rdt_enable_ctx() Babu Moger
2023-09-11 22:58 ` Reinette Chatre
2023-09-12 16:54 ` Moger, Babu
2023-09-07 23:51 ` [PATCH v9 6/9] x86/resctrl: Move default group file creation to mount Babu Moger
2023-09-11 17:58 ` Fenghua Yu
2023-09-11 23:05 ` Reinette Chatre
2023-09-07 23:51 ` [PATCH v9 7/9] x86/resctrl: Introduce "-o debug" mount option Babu Moger
2023-09-07 23:51 ` [PATCH v9 8/9] x86/resctrl: Display CLOSID for resource group Babu Moger
2023-09-11 18:08 ` Fenghua Yu
2023-09-11 21:53 ` Reinette Chatre
2023-09-07 23:51 ` [PATCH v9 9/9] x86/resctrl: Display RMID of " Babu Moger
2023-09-11 18:14 ` Fenghua Yu
2023-09-12 17:18 ` Moger, Babu
2023-09-11 23:08 ` Reinette Chatre
2023-09-12 17:39 ` Moger, Babu
2023-09-12 17:57 ` Reinette Chatre
2023-09-12 19:45 ` Moger, Babu
2023-09-11 23:08 ` [PATCH v9 0/9] x86/resctrl: Miscellaneous resctrl features Reinette Chatre
2023-09-12 16:53 ` Moger, Babu
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