linux-kernel - [tip:x86/fpu] x86/fpu: Remove the XFEATURE_MASK

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Message-ID: <tip-2f7fada23549b4657e9ea92eeddebc878db569d2@git.kernel.org>
Date:   Fri, 7 Oct 2016 02:44:11 -0700
From:   tip-bot for Andy Lutomirski <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     dave.hansen@...ux.intel.com, bp@...en8.de, peterz@...radead.org,
        hpa@...or.com, torvalds@...ux-foundation.org, luto@...nel.org,
        oleg@...hat.com, dvlasenk@...hat.com, brgerst@...il.com,
        jpoimboe@...hat.com, linux-kernel@...r.kernel.org,
        fenghua.yu@...el.com, tglx@...utronix.de, riel@...hat.com,
        quentin.casasnovas@...cle.com, mingo@...nel.org
Subject: [tip:x86/fpu] x86/fpu: Remove the XFEATURE_MASK_EAGER/LAZY
 distinction

Commit-ID:  2f7fada23549b4657e9ea92eeddebc878db569d2
Gitweb:     http://git.kernel.org/tip/2f7fada23549b4657e9ea92eeddebc878db569d2
Author:     Andy Lutomirski <luto@...nel.org>
AuthorDate: Tue, 4 Oct 2016 20:34:32 -0400
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Fri, 7 Oct 2016 11:14:29 +0200

x86/fpu: Remove the XFEATURE_MASK_EAGER/LAZY distinction

Now that lazy mode is gone, we don't need to distinguish which
xfeatures require eager mode.

Signed-off-by: Andy Lutomirski <luto@...nel.org>
Signed-off-by: Rik van Riel <riel@...hat.com>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Brian Gerst <brgerst@...il.com>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: Denys Vlasenko <dvlasenk@...hat.com>
Cc: Fenghua Yu <fenghua.yu@...el.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Oleg Nesterov <oleg@...hat.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Quentin Casasnovas <quentin.casasnovas@...cle.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: pbonzini@...hat.com
Link: http://lkml.kernel.org/r/1475627678-20788-4-git-send-email-riel@redhat.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/include/asm/fpu/xstate.h | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/arch/x86/include/asm/fpu/xstate.h b/arch/x86/include/asm/fpu/xstate.h
index d4957ac..1b2799e 100644
--- a/arch/x86/include/asm/fpu/xstate.h
+++ b/arch/x86/include/asm/fpu/xstate.h
@@ -21,20 +21,16 @@
 /* Supervisor features */
 #define XFEATURE_MASK_SUPERVISOR (XFEATURE_MASK_PT)
 
-/* Supported features which support lazy state saving */
-#define XFEATURE_MASK_LAZY	(XFEATURE_MASK_FP | \
+/* All currently supported features */
+#define XCNTXT_MASK		(XFEATURE_MASK_FP | \
 				 XFEATURE_MASK_SSE | \
 				 XFEATURE_MASK_YMM | \
 				 XFEATURE_MASK_OPMASK | \
 				 XFEATURE_MASK_ZMM_Hi256 | \
 				 XFEATURE_MASK_Hi16_ZMM	 | \
-				 XFEATURE_MASK_PKRU)
-
-/* Supported features which require eager state saving */
-#define XFEATURE_MASK_EAGER	(XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR)
-
-/* All currently supported features */
-#define XCNTXT_MASK	(XFEATURE_MASK_LAZY | XFEATURE_MASK_EAGER)
+				 XFEATURE_MASK_PKRU | \
+				 XFEATURE_MASK_BNDREGS | \
+				 XFEATURE_MASK_BNDCSR)
 
 #ifdef CONFIG_X86_64
 #define REX_PREFIX	"0x48, "