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From: Toshi Kani <toshi.kani@hpe.com>
To: mingo@kernel.org, bp@suse.de, hpa@zytor.com, tglx@linutronix.de
Cc: mcgrof@suse.com, jgross@suse.com, paul.gortmaker@windriver.com,
	konrad.wilk@oracle.com, elliott@hpe.com, x86@kernel.org,
	xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org,
	Toshi Kani <toshi.kani@hpe.com>
Subject: [PATCH v3 3/7] x86/mm/pat: Replace cpu_has_pat with boot_cpu_has
Date: Wed, 23 Mar 2016 15:41:59 -0600	[thread overview]
Message-ID: <1458769323-24491-4-git-send-email-toshi.kani@hpe.com> (raw)
In-Reply-To: <1458769323-24491-1-git-send-email-toshi.kani@hpe.com>

Borislav Petkov wrote:
> Please use on init paths boot_cpu_has(X86_FEATURE_PAT) and on fast
> paths static_cpu_has(X86_FEATURE_PAT). No more of that cpu_has_XXX
> ugliness.

Replace the use of cpu_has_pat on init paths with boot_cpu_has().

Suggested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Robert Elliott <elliott@hpe.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/mm/pat.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 3c08a27..3aea1ab 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -213,7 +213,7 @@ static void pat_bsp_init(u64 pat)
 {
 	u64 tmp_pat;
 
-	if (!cpu_has_pat) {
+	if (!boot_cpu_has(X86_FEATURE_PAT)) {
 		pat_disable("PAT not supported by CPU.");
 		return;
 	}
@@ -231,7 +231,7 @@ static void pat_bsp_init(u64 pat)
 
 static void pat_ap_init(u64 pat)
 {
-	if (!cpu_has_pat) {
+	if (!boot_cpu_has(X86_FEATURE_PAT)) {
 		/*
 		 * If this happens we are on a secondary CPU, but switched to
 		 * PAT on the boot CPU. We have no way to undo PAT.

  parent reply	other threads:[~2016-03-23 20:49 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-23 21:41 [PATCH v3 0/7] Enhance PAT init to fix Xorg crashes Toshi Kani
2016-03-23 21:41 ` [PATCH v3 1/7] x86/mm/pat: Add support of non-default PAT MSR setting Toshi Kani
2016-03-29 10:37   ` [tip:x86/mm] " tip-bot for Toshi Kani
2016-03-23 21:41 ` [PATCH v3 2/7] x86/mm/pat: Add pat_disable() interface Toshi Kani
2016-03-29 10:38   ` [tip:x86/mm] " tip-bot for Toshi Kani
2016-03-23 21:41 ` Toshi Kani [this message]
2016-03-29 10:38   ` [tip:x86/mm] x86/mm/pat: Replace cpu_has_pat with boot_cpu_has() tip-bot for Toshi Kani
2016-03-23 21:42 ` [PATCH v3 4/6] x86/mtrr: Fix Xorg crashes in Qemu sessions Toshi Kani
2016-03-29 10:39   ` [tip:x86/mm] " tip-bot for Toshi Kani
2016-03-23 21:42 ` [PATCH v3 5/7] x86/mtrr: Fix PAT init handling when MTRR is disabled Toshi Kani
2016-03-29 10:39   ` [tip:x86/mm] " tip-bot for Toshi Kani
2016-03-23 21:42 ` [PATCH v3 6/7] x86/xen,pat: Remove PAT table init code from Xen Toshi Kani
2016-03-29 10:39   ` [tip:x86/mm] x86/xen, pat: " tip-bot for Toshi Kani
2016-03-23 21:42 ` [PATCH v3 7/7] x86/pat: Document PAT initialization Toshi Kani
2016-03-29 10:40   ` [tip:x86/mm] x86/pat: Document the PAT initialization sequence tip-bot for Toshi Kani
2016-03-29 10:34 ` [PATCH v3 0/7] Enhance PAT init to fix Xorg crashes Ingo Molnar
2016-03-29 14:19   ` Toshi Kani
2016-03-29 14:46     ` [Xen-devel] " Boris Ostrovsky
2016-03-29 15:49       ` Toshi Kani
2016-03-30 18:02         ` Luis R. Rodriguez
     [not found]           ` <20160330185833.GA3323@char.us.oracle.com>
2016-03-30 20:10             ` [LKP] " Luis R. Rodriguez
     [not found]               ` <20160330202920.GB23916@char.us.oracle.com>
2016-03-30 20:47                 ` Luis R. Rodriguez

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