Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1650104

Re: [PATCH] x86/timers: Move simple_udelay_calibration past init_hypervisor_platform

From Lu Baolu <baolu.lu@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] x86/timers: Move simple_udelay_calibration past init_hypervisor_platform
Date 2017-05-25 03:40 +0200
Message-ID <tKPUR-1xw-1@gated-at.bofh.it> (permalink)
References <tKITo-5Hs-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw



On 05/25/2017 02:04 AM, Jan Kiszka wrote:
> 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.

Acked-by: Lu Baolu <baolu.lu@linux.intel.com>

>
> 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 */
>

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH] x86/timers: Move simple_udelay_calibration past  init_hypervisor_platform Jan Kiszka <jan.kiszka@siemens.com> - 2017-05-24 20:10 +0200
  Re: [PATCH] x86/timers: Move simple_udelay_calibration past  init_hypervisor_platform Lu Baolu <baolu.lu@linux.intel.com> - 2017-05-25 03:40 +0200
  [tip:x86/urgent] x86/timers: Move simple_udelay_calibration past  init_hypervisor_platform tip-bot for Jan Kiszka <tipbot@zytor.com> - 2017-05-26 14:10 +0200
  Re: [PATCH] x86/timers: Move simple_udelay_calibration past init_hypervisor_platform Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-27 03:40 +0200
    Re: [PATCH] x86/timers: Move simple_udelay_calibration past  init_hypervisor_platform Jan Kiszka <jan.kiszka@siemens.com> - 2017-05-28 18:50 +0200

csiph-web