From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 23 Apr 2015 09:26:08 +0000 (+0200)
Subject: x86/fpu: Print out whether we are doing lazy/eager FPU context switches
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~174^2~208
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9a89b02918c03d91e685d06e49a652da5f35befc;p=pandora-kernel.git

x86/fpu: Print out whether we are doing lazy/eager FPU context switches

Ever since the kernel started defaulting to eager FPU switches on modern Intel
CPUs it's not been obvious whether a given system is using the lazy or the eager
FPU context switching logic.

So generate a boot message about which mode the FPU code is in:

  x86/fpu: Using 'lazy' FPU context switches.

or:

  x86/fpu: Using 'eager' FPU context switches.

Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

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