linux-kernel - [PATCH v6 00/10] Intel Cache Allocation Technology

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Date:   Fri, 28 Oct 2016 15:04:39 -0700
From:   "Fenghua Yu" <fenghua.yu@...el.com>
To:     "Thomas Gleixner" <tglx@...utronix.de>
Cc:     "Ingo Molnar" <mingo@...e.hu>,
        "H. Peter Anvin" <h.peter.anvin@...el.com>,
        "Tony Luck" <tony.luck@...el.com>, "Borislav Petkov" <bp@...e.de>,
        "Stephane Eranian" <eranian@...gle.com>,
        "Peter Zijlstra" <peterz@...radead.org>,
        "Dave Hansen" <dave.hansen@...el.com>,
        "David Carrillo-Cisneros" <davidcc@...gle.com>,
        "Ravi V Shankar" <ravi.v.shankar@...el.com>,
        "Vikas Shivappa" <vikas.shivappa@...ux.intel.com>,
        "Sai Prakhya" <sai.praneeth.prakhya@...el.com>,
        "Nilay Vaish" <nilayvaish@...il.com>, "Shaohua Li" <shli@...com>,
        "linux-kernel" <linux-kernel@...r.kernel.org>,
        "x86" <x86@...nel.org>, "Fenghua Yu" <fenghua.yu@...el.com>
Subject: [PATCH v6 00/10] Intel Cache Allocation Technology

From: Fenghua Yu <fenghua.yu@...el.com>

This version is supposed to cover all comments from Thomas.

Patch 1-4, 6-9 of 18 v5 patches are in tip x86/cache branch. We
have rest of 10 patches in v6 on top of tip tree.

Change log in v6:

patch 1 (i.e. patch 5 in v5): Change max_cbm_val to cbm_mask.

patch 2 (i.e. patch 10 in v5): Change comments for rdt_find_domain and
domain_add_cpu() to explain why domain list is sorted by id. Change
the pos argument to optional in rdt_rind_domain and assign NULL to it
in caller domain_remove_cpu.

patch 3 (i.e. patch 11 in v5): Remove arg's type cast in
l3_qos_cfg_update(). Change the local variable declaration lines in
more readable way. Disable CDP in umount only when it's enabled. Fix
an error handling issue in rdt_mount.

patch 4 (i.e. patch 12 in v5): Change names from "num_closid" to
"num_closids" and from "cbm_val" to "cbm_mask" in res_info_files. Remove
the unused label "out" in rdtgroup_setup_root() and will add it later when
it's used.

patch 5 (i.e. patch 13 in v5): Init closid_free_map by minimal closid
instead of by maximum closid in all resources.

patch 6 (i.e. patch 14 in v5): Change local variable declaration lines
to more readable way.

patch 7 (i.e. patch 15 in v5): Change for_each_process to
for_each_process_thread

patch 8 (i.e. patch 16 in v5): Change local variable declaration lines
to more readable way.

patch 9 (i.e. patch 17 in v5): No change.

patch 10 (i.e. patch 18 in v5): No change.

Fenghua Yu (7):
  Documentation, x86: Documentation for Intel resource allocation user
    interface
  x86/intel_rdt: Add basic resctrl filesystem support
  x86/intel_rdt: Add "info" files to resctrl file system
  x86/intel_rdt: Add mkdir to resctrl file system
  x86/intel_rdt: Add tasks files
  x86/intel_rdt: Add scheduler hook
  MAINTAINERS: Add maintainer for Intel RDT resource allocation

Tony Luck (3):
  x86/intel_rdt: Build structures for each resource based on cache
    topology
  x86/intel_rdt: Add cpus file
  x86/intel_rdt: Add schemata file

 Documentation/x86/intel_rdt_ui.txt       |  167 +++++
 MAINTAINERS                              |    8 +
 arch/x86/include/asm/intel_rdt.h         |  145 +++++
 arch/x86/kernel/cpu/Makefile             |    2 +-
 arch/x86/kernel/cpu/intel_rdt.c          |  213 ++++++-
 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 1007 ++++++++++++++++++++++++++++++
 arch/x86/kernel/cpu/intel_rdt_schemata.c |  245 ++++++++
 arch/x86/kernel/process_32.c             |    4 +
 arch/x86/kernel/process_64.c             |    4 +
 include/linux/sched.h                    |    3 +
 include/uapi/linux/magic.h               |    1 +
 11 files changed, 1797 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/x86/intel_rdt_ui.txt
 create mode 100644 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
 create mode 100644 arch/x86/kernel/cpu/intel_rdt_schemata.c

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2.5.0