Message ID | 168980889343.1619861.8836711283953792286.stgit@bmoger-ubuntu |
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State | New |
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Wed, 19 Jul 2023 18:21:39 -0500 Subject: [PATCH v6 2/8] x86/resctrl: Simplify rftype flag definitions 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> Date: Wed, 19 Jul 2023 18:21:33 -0500 Message-ID: <168980889343.1619861.8836711283953792286.stgit@bmoger-ubuntu> In-Reply-To: <168980872063.1619861.420806535295905172.stgit@bmoger-ubuntu> References: <168980872063.1619861.420806535295905172.stgit@bmoger-ubuntu> User-Agent: StGit/1.1.dev103+g5369f4c MIME-Version: 1.0 Content-Type: text/plain; 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x86/resctrl: Miscellaneous resctrl features
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Commit Message
Moger, Babu
July 19, 2023, 11:21 p.m. UTC
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> Signed-off-by: Babu Moger <babu.moger@amd.com> Reviewed-by: Reinette Chatre <reinette.chatre@intel.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");