leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
6fc0de37f6
linux/Documentation/x86
History
Reinette Chatre 6fc0de37f6 x86/intel_rdt: Limit C-states dynamically when pseudo-locking active 
Deeper C-states impact cache content through shrinking of the cache or
flushing entire cache to memory before reducing power to the cache.
Deeper C-states will thus negatively impact the pseudo-locked regions.

To avoid impacting pseudo-locked regions C-states are limited on
pseudo-locked region creation so that cores associated with the
pseudo-locked region are prevented from entering deeper C-states.
This is accomplished by requesting a CPU latency target which will
prevent the core from entering C6 across all supported platforms.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: fenghua.yu@intel.com
Cc: tony.luck@intel.com
Cc: vikas.shivappa@linux.intel.com
Cc: gavin.hindman@intel.com
Cc: jithu.joseph@intel.com
Cc: dave.hansen@intel.com
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/1ef4f99dd6ba12fa6fb44c5a1141e75f952b9cd9.1529706536.git.reinette.chatre@intel.com
2018-06-24 15:35:48 +02:00
..
i386
x86_64 x86/pci-dma: remove the explicit nodac and allowdac option 2018-05-28 12:48:21 +02:00
00-INDEX Documentation: Fix early-microcode.txt references after file rename 2018-03-27 09:51:23 +02:00
amd-memory-encryption.txt Documentation/x86: Add AMD Secure Encrypted Virtualization (SEV) description 2017-11-07 15:35:54 +01:00
boot.txt docs: fix locations of several documents that got moved 2016-10-24 08:12:35 -02:00
earlyprintk.txt
entry_64.txt x86/asm/entry/64: Update path names 2015-07-02 11:08:50 +02:00
exception-tables.txt x86/mm: Expand the exception table logic to allow new handling options 2016-02-18 09:21:46 +01:00
intel_mpx.txt x86/Documentation: Fix various typos in Documentation/x86/ files 2016-07-01 10:00:10 +02:00
intel_rdt_ui.txt x86/intel_rdt: Limit C-states dynamically when pseudo-locking active 2018-06-24 15:35:48 +02:00
kernel-stacks Documentation/x86: Rename IRQSTACKSIZE to IRQ_STACK_SIZE 2015-08-24 11:42:41 -06:00
microcode.txt firmware: Fix up docs referring to FIRMWARE_IN_KERNEL 2018-01-25 12:46:30 +01:00
mtrr.txt x86/mm/mtrr: Remove kernel internal MTRR interfaces: unexport mtrr_add() and mtrr_del() 2015-08-28 10:09:28 +02:00
orc-unwinder.txt x86/unwind: Rename unwinder config options to 'CONFIG_UNWINDER_*' 2017-10-14 10:12:12 +02:00
pat.txt x86/pat: Document the PAT initialization sequence 2016-03-29 12:23:27 +02:00
protection-keys.txt x86/pkeys: Update documentation about availability 2017-11-21 09:34:52 +01:00
pti.txt x86/pti: Document fix wrong index 2018-01-19 16:31:29 +01:00
tlb.txt x86/Documentation: Fix various typos in Documentation/x86/ files 2016-07-01 10:00:10 +02:00
topology.txt x86/topology: Fix function name in documentation 2018-02-23 08:40:12 +01:00
usb-legacy-support.txt
zero-page.txt Merge branch 'linus' into WIP.x86/boot, to fix up conflicts and to pick up updates 2017-03-01 09:02:26 +01:00