[PATCH 8/9] efi: clocksoure: add EFI event timer

Sascha Hauer s.hauer at pengutronix.de
Mon Mar 6 23:41:12 PST 2017


On Fri, Mar 03, 2017 at 01:34:04PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> with this we can be hw generic
> 
> If the EFI implement timestamp protocol we could use instead of event
> but even EDK2 Never Ever compile it for any target.
> 
> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
> ---
> +	freq = 1000 * 1000;
> +	if (ticks_freq() < 800 * 1000) {
> +		uint64_t nb_100ns;
> +
> +		freq = ticks_freq_x86();
> +		nb_100ns = 10 * 1000 * 1000 / freq;
> +		pr_warn("EFI Event timer too slow freq = %llu Hz\n", freq);

Applied this series for now. I weakened this message somewhat:

		pr_warn("EFI Event timer slow, freq = %lluHz\n", freq);

As this is not really an error, only an information one might want to
know.

Sascha

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