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| From | Andy Shevchenko <andy.shevchenko@gmail.com> |
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] x86/timers: Move simple_udelay_calibration past init_hypervisor_platform |
| Date | Sat, 27 May 2017 03:40:03 +0200 |
| Message-ID | <tLyRZ-4YN-41@gated-at.bofh.it> (permalink) |
| References | <tKITo-5Hs-11@gated-at.bofh.it> |
| X-Original-To | Jan Kiszka <jan.kiszka@siemens.com>, Mathias Nyman <mathias.nyman@linux.intel.com> |
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| X-Original-Cc | Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>, x86 <x86@kernel.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Lu Baolu <baolu.lu@linux.intel.com> |
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+Cc Mathias
On Wed, May 24, 2017 at 9:04 PM, Jan Kiszka <jan.kiszka@siemens.com> 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.
>
Can you elaborate a bit what is the issue you are experience?
> 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 */
--
With Best Regards,
Andy Shevchenko
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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
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