Commit-ID: 1d9f3e20a56d33e55748552aeec597f58542f92d Gitweb: https://git.kernel.org/tip/1d9f3e20a56d33e55748552aeec597f58542f92d Author: Tony Luck <[email protected]> AuthorDate: Fri, 8 Jun 2018 09:07:32 -0700 Committer: Thomas Gleixner <[email protected]> CommitDate: Sat, 9 Jun 2018 16:04:34 +0200
x86/intel_rdt: Enable CMT and MBM on new Skylake stepping 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 <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: [email protected] # v4.14 Cc: Vikas Shivappa <[email protected]> Link: https://lkml.kernel.org/r/[email protected] --- arch/x86/kernel/cpu/intel_rdt.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c index 589b948e6e01..316a8875bd90 100644 --- a/arch/x86/kernel/cpu/intel_rdt.c +++ b/arch/x86/kernel/cpu/intel_rdt.c @@ -821,6 +821,8 @@ 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"); } }
