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From: Jan Kiszka <jan.kiszka@siemens.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	x86 <x86@kernel.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Lu Baolu <baolu.lu@linux.intel.com>
Subject: [PATCH] x86/timers: Move simple_udelay_calibration past init_hypervisor_platform
Date: Wed, 24 May 2017 20:04:41 +0200
Message-ID: <5e89fe60-aab3-2c1c-aba8-32f8ad376189@siemens.com> (raw)

This ensures that adjustments to x86_platform done by the hypervisor
setup is already respected by this simple calibration.

The current user of this, introduced by 1b5aeebf3a92 ("x86/earlyprintk:
Add support for earlyprintk via USB3 debug port"), comes much later
into play.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 arch/x86/kernel/setup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 0b4d3c686b1e..f81823695014 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -980,8 +980,6 @@ void __init setup_arch(char **cmdline_p)
 	 */
 	x86_configure_nx();
 
-	simple_udelay_calibration();
-
 	parse_early_param();
 
 #ifdef CONFIG_MEMORY_HOTPLUG
@@ -1041,6 +1039,8 @@ void __init setup_arch(char **cmdline_p)
 	 */
 	init_hypervisor_platform();
 
+	simple_udelay_calibration();
+
 	x86_init.resources.probe_roms();
 
 	/* after parse_early_param, so could debug it */

             reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-24 18:04 Jan Kiszka [this message]
2017-05-25  1:38 ` Lu Baolu
2017-05-26 11:06 ` [tip:x86/urgent] " tip-bot for Jan Kiszka
2017-05-26 23:04 ` [PATCH] " Andy Shevchenko
2017-05-28 16:41   ` Jan Kiszka

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