shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-03 17:51:57 +09:00
Code Issues Packages Projects Releases Wiki Activity

x86/intel_rdt: Enable CMT and MBM on new Skylake stepping

Browse Source 
commit 1d9f3e20a5 upstream.

New stepping of Skylake has fixes for cache occupancy and memory
bandwidth monitoring.

Update the code to enable these by default on newer steppings.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: stable@vger.kernel.org # v4.14
Cc: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Link: https://lkml.kernel.org/r/20180608160732.9842-1-tony.luck@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tony Luck
2018-06-08 09:07:32 -07:00
committed by Greg Kroah-Hartman
parent e6ef46cb8f
commit 2d58a9ac89
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/kernel/cpu/intel_rdt.c
View File

@@ -773,6 +773,8 @@ static __init void rdt_quirks(void)
case INTEL_FAM6_SKYLAKE_X:
if (boot_cpu_data.x86_stepping <= 4)
set_rdt_options("!cmt,!mbmtotal,!mbmlocal,!l3cat");
else
set_rdt_options("!l3cat");
}
}