linux-kernel - [tip:x86/urgent] x86/timers: Move simple_udelay_calibration past init_hypervisor

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Date:   Fri, 26 May 2017 04:06:48 -0700
From:   tip-bot for Jan Kiszka <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     baolu.lu@...ux.intel.com, hpa@...or.com, jan.kiszka@...mens.com,
        tglx@...utronix.de, mingo@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip:x86/urgent] x86/timers: Move simple_udelay_calibration past
 init_hypervisor_platform

Commit-ID:  702644ec1cab10ffefcebb4060d4da46d4ef2c7f
Gitweb:     http://git.kernel.org/tip/702644ec1cab10ffefcebb4060d4da46d4ef2c7f
Author:     Jan Kiszka <jan.kiszka@...mens.com>
AuthorDate: Wed, 24 May 2017 20:04:41 +0200
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 26 May 2017 13:04:09 +0200

x86/timers: Move simple_udelay_calibration past init_hypervisor_platform

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.

Fixes: dd759d93f4dd ("x86/timers: Add simple udelay calibration")
Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Acked-by: Lu Baolu <baolu.lu@...ux.intel.com>
Link: http://lkml.kernel.org/r/5e89fe60-aab3-2c1c-aba8-32f8ad376189@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 0b4d3c6..f818236 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 */