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Use ITC on IA64 rather than broken routine based on daytime.

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* grub-core/kern/efi/efi.c (grub_rtc_get_time_ms) [__ia64__]: Remove on
	ia64.
	(grub_get_rtc) [__ia64__]: Likewise.
	* grub-core/kern/ia64/efi/init.c (divisor): New variable.
	(get_itc): New function.
	(grub_rtc_get_time_ms): Likewise.
	(grub_machine_init): Calibrate ITC.
	* include/grub/efi/time.h (grub_get_rtc), (GRUB_TICKS_PER_SECOND):
	Keep only on non-ia64. Don't export since it's broken and used only
	if TSC is unavailable.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2012-06-09 10:52:39 +02:00
parent a176740446
commit 9e5e66d15e
4 changed files with 53 additions and 1 deletions
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2
grub-core/kern/efi/efi.c
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@ -230,6 +230,7 @@ grub_efi_get_variable (const char *var, const grub_efi_guid_t *guid,
return NULL;
}
#ifndef __ia64__
grub_uint64_t
grub_rtc_get_time_ms (void)
{
@ -250,6 +251,7 @@ grub_get_rtc (void)
{
return grub_rtc_get_time_ms ();
}
#endif
#pragma GCC diagnostic ignored "-Wcast-align"