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authorLinus Torvalds <torvalds@linux-foundation.org>2018-12-26 12:17:43 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-26 12:17:43 -0800
commita52fb43a5faa40507cb164a793a7fa08da863ac7 (patch)
tree437f0c5dbdbbd81b38783f9f034971af525ddcfa /Documentation/x86
parent42b00f122cfbfed79fc29b0b3610f3abbb1e3864 (diff)
parent52eb74339a6233c69f4e3794b69ea7c98eeeae1b (diff)
Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cache control updates from Borislav Petkov: - The generalization of the RDT code to accommodate the addition of AMD's very similar implementation of the cache monitoring feature. This entails a subsystem move into a separate and generic arch/x86/kernel/cpu/resctrl/ directory along with adding vendor-specific initialization and feature detection helpers. Ontop of that is the unification of user-visible strings, both in the resctrl filesystem error handling and Kconfig. Provided by Babu Moger and Sherry Hurwitz. - Code simplifications and error handling improvements by Reinette Chatre. * 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/resctrl: Fix rdt_find_domain() return value and checks x86/resctrl: Remove unnecessary check for cbm_validate() x86/resctrl: Use rdt_last_cmd_puts() where possible MAINTAINERS: Update resctrl filename patterns Documentation: Rename and update intel_rdt_ui.txt to resctrl_ui.txt x86/resctrl: Introduce AMD QOS feature x86/resctrl: Fixup the user-visible strings x86/resctrl: Add AMD's X86_FEATURE_MBA to the scattered CPUID features x86/resctrl: Rename the config option INTEL_RDT to RESCTRL x86/resctrl: Add vendor check for the MBA software controller x86/resctrl: Bring cbm_validate() into the resource structure x86/resctrl: Initialize the vendor-specific resource functions x86/resctrl: Move all the macros to resctrl/internal.h x86/resctrl: Re-arrange the RDT init code x86/resctrl: Rename the RDT functions and definitions x86/resctrl: Rename and move rdt files to a separate directory
Diffstat (limited to 'Documentation/x86')
-rw-r--r--Documentation/x86/resctrl_ui.txt (renamed from Documentation/x86/intel_rdt_ui.txt)9
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/x86/intel_rdt_ui.txt b/Documentation/x86/resctrl_ui.txt
index 52b10945ff75..d9aed8303984 100644
--- a/Documentation/x86/intel_rdt_ui.txt
+++ b/Documentation/x86/resctrl_ui.txt
@@ -1,4 +1,7 @@
-User Interface for Resource Allocation in Intel Resource Director Technology
+User Interface for Resource Control feature
+
+Intel refers to this feature as Intel Resource Director Technology(Intel(R) RDT).
+AMD refers to this feature as AMD Platform Quality of Service(AMD QoS).
Copyright (C) 2016 Intel Corporation
@@ -6,8 +9,8 @@ Fenghua Yu <fenghua.yu@intel.com>
Tony Luck <tony.luck@intel.com>
Vikas Shivappa <vikas.shivappa@intel.com>
-This feature is enabled by the CONFIG_INTEL_RDT Kconfig and the
-X86 /proc/cpuinfo flag bits:
+This feature is enabled by the CONFIG_RESCTRL and the X86 /proc/cpuinfo
+flag bits:
RDT (Resource Director Technology) Allocation - "rdt_a"
CAT (Cache Allocation Technology) - "cat_l3", "cat_l2"
CDP (Code and Data Prioritization ) - "cdp_l3", "cdp_l2"