src/arch/x86/interface/pcbios/bios_nap.c

#include <ipxe/nap.h>
#include <realmode.h>

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );

/**
 * Save power by halting the CPU until the next interrupt
 *
 */
static void bios_cpu_nap ( void ) {
	__asm__ __volatile__ ( "sti\n\t"
			       "hlt\n\t"
			       "cli\n\t" );
}

PROVIDE_NAP ( pcbios, cpu_nap, bios_cpu_nap );
[build] Rename gPXE to iPXE Access to the gpxe.org and etherboot.org domains and associated resources has been revoked by the registrant of the domain. Work around this problem by renaming project from gPXE to iPXE, and updating URLs to match. Also update README, LOG and COPYRIGHTS to remove obsolete information. Signed-off-by: Michael Brown <mcb30@ipxe.org> 2010-04-19 20:16:01 +01:00			`#include <ipxe/nap.h>`
[nap] Formalise the CPU sleeping API 2008-10-12 23:34:45 +01:00			`#include <realmode.h>`

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL Relicense files for which I am the sole author (as identified by util/relicense.pl). Signed-off-by: Michael Brown <mcb30@ipxe.org> 2015-03-02 11:54:40 +00:00			`FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );`
[legal] Add a selection of FILE_LICENCE declarations Add FILE_LICENCE declarations to almost all files that make up the various standard builds of gPXE. 2009-05-01 15:41:06 +01:00
[nap] Formalise the CPU sleeping API 2008-10-12 23:34:45 +01:00			`/**`
			`* Save power by halting the CPU until the next interrupt`
			`*`
			`*/`
			`static void bios_cpu_nap ( void ) {`
[pcbios] Do not switch to real mode to sleep the CPU Now that we can handle interrupts while in protected mode, there is no need to switch to real mode just to halt the CPU. Signed-off-by: Michael Brown <mcb30@ipxe.org> 2014-04-29 18:17:17 +01:00			`__asm__ __volatile__ ( "sti\n\t"`
			`"hlt\n\t"`
			`"cli\n\t" );`
[nap] Formalise the CPU sleeping API 2008-10-12 23:34:45 +01:00			`}`

			`PROVIDE_NAP ( pcbios, cpu_nap, bios_cpu_nap );`