grub/include/grub/time.h

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/*
* GRUB -- GRand Unified Bootloader
2008-08-05 Colin D Bennett <colin@gibibit.com> High resolution timer support. Implemented for x86 CPUs using TSC. Extracted generic grub_millisleep() so it's linked in only as needed. This requires a Pentium compatible CPU; if the RDTSC instruction is not supported, then it falls back on the generic grub_get_time_ms() implementation that uses the machine's RTC. * conf/i386-pc.rmk (kernel_img_SOURCES): Add `kern/time.c', `kern/i386/tsc.c', `kern/generic/rtc_get_time_ms.c' and `kern/generic/millisleep.c'. * conf/i386-efi.rmk (kernel_mod_SOURCES): Add `kern/i386/tsc.c', `kern/generic/rtc_get_time_ms.c' and `kern/generic/millisleep.c'. * conf/x86_64-efi.rml (kernel_mod_SOURCES): Add `kern/generic/millisleep.c' and `kern/generic/rtc_get_time_ms.c'. * conf/sparc64-ieee1275.rmk (kernel_elf_SOURCES): Likewise. * conf/powerpc-ieee1275.rmk (kernel_elf_SOURCES): Add `kern/generic/millisleep.c'. * conf/i386-ieee1275.rmk (kernel_elf_SOURCES): Likewise. * conf/i386-coreboot.rmk (kernel_elf_SOURCES): Add `kern/time.c'. * kern/generic/rtc_get_time_ms.c: New file. * kern/generic/millisleep.c: New file. * kern/misc.c: Don't include <kern/time.h> anymore. (grub_millisleep_generic): Removed. * commands/sleep.c (grub_interruptible_millisleep): Uses grub_get_time_ms() instead of grub_get_rtc(). * include/grub/i386/tsc.h (grub_get_tsc): New file. New inline function. (grub_cpu_is_cpuid_supported): New inline function. (grub_cpu_is_tsc_supported): New inline function. (grub_tsc_init): New function prototype. (grub_tsc_get_time_ms): New function prototype. * kern/i386/tsc.c (grub_get_time_ms): New file. * include/grub/time.h: Include <grub/types.h. (grub_millisleep_generic): Removed. (grub_get_time_ms): New prototype. (grub_install_get_time_ms): New prototype. (grub_rtc_get_time_ms): New prototype. * kern/time.c (grub_get_time_ms): New function. (grub_install_get_time_ms): New function. * kern/i386/efi/init.c: Include <grub/cpu/tsc.h>. Don't include <grub/time.h> anymore. (grub_millisleep): Removed. (grub_machine_init): Call grub_tsc_init. * kern/i386/linuxbios/init.c (grub_machine_init): Install the RTC get_time_ms() implementation. * kern/sparc64/ieee1275/init.c (grub_millisleep): Removed. (ieee1275_get_time_ms): New function. (grub_machine_init): Install get_time_ms() implementation. * kern/i386/pc/init.c: Include <grub/cpu/tsc.h>. (grub_machine_init): Call grub_tsc_init(). (grub_millisleep): Removed. * kern/ieee1275/init.c (grub_millisleep): Removed. (grub_machine_init): Install ieee1275_get_time_ms() implementation. (ieee1275_get_time_ms): New function. (grub_get_rtc): Now calls ieee1275_get_time_ms(), which does the real work.
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* Copyright (C) 2007, 2008 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef KERNEL_TIME_HEADER
#define KERNEL_TIME_HEADER 1
2008-08-05 Colin D Bennett <colin@gibibit.com> High resolution timer support. Implemented for x86 CPUs using TSC. Extracted generic grub_millisleep() so it's linked in only as needed. This requires a Pentium compatible CPU; if the RDTSC instruction is not supported, then it falls back on the generic grub_get_time_ms() implementation that uses the machine's RTC. * conf/i386-pc.rmk (kernel_img_SOURCES): Add `kern/time.c', `kern/i386/tsc.c', `kern/generic/rtc_get_time_ms.c' and `kern/generic/millisleep.c'. * conf/i386-efi.rmk (kernel_mod_SOURCES): Add `kern/i386/tsc.c', `kern/generic/rtc_get_time_ms.c' and `kern/generic/millisleep.c'. * conf/x86_64-efi.rml (kernel_mod_SOURCES): Add `kern/generic/millisleep.c' and `kern/generic/rtc_get_time_ms.c'. * conf/sparc64-ieee1275.rmk (kernel_elf_SOURCES): Likewise. * conf/powerpc-ieee1275.rmk (kernel_elf_SOURCES): Add `kern/generic/millisleep.c'. * conf/i386-ieee1275.rmk (kernel_elf_SOURCES): Likewise. * conf/i386-coreboot.rmk (kernel_elf_SOURCES): Add `kern/time.c'. * kern/generic/rtc_get_time_ms.c: New file. * kern/generic/millisleep.c: New file. * kern/misc.c: Don't include <kern/time.h> anymore. (grub_millisleep_generic): Removed. * commands/sleep.c (grub_interruptible_millisleep): Uses grub_get_time_ms() instead of grub_get_rtc(). * include/grub/i386/tsc.h (grub_get_tsc): New file. New inline function. (grub_cpu_is_cpuid_supported): New inline function. (grub_cpu_is_tsc_supported): New inline function. (grub_tsc_init): New function prototype. (grub_tsc_get_time_ms): New function prototype. * kern/i386/tsc.c (grub_get_time_ms): New file. * include/grub/time.h: Include <grub/types.h. (grub_millisleep_generic): Removed. (grub_get_time_ms): New prototype. (grub_install_get_time_ms): New prototype. (grub_rtc_get_time_ms): New prototype. * kern/time.c (grub_get_time_ms): New function. (grub_install_get_time_ms): New function. * kern/i386/efi/init.c: Include <grub/cpu/tsc.h>. Don't include <grub/time.h> anymore. (grub_millisleep): Removed. (grub_machine_init): Call grub_tsc_init. * kern/i386/linuxbios/init.c (grub_machine_init): Install the RTC get_time_ms() implementation. * kern/sparc64/ieee1275/init.c (grub_millisleep): Removed. (ieee1275_get_time_ms): New function. (grub_machine_init): Install get_time_ms() implementation. * kern/i386/pc/init.c: Include <grub/cpu/tsc.h>. (grub_machine_init): Call grub_tsc_init(). (grub_millisleep): Removed. * kern/ieee1275/init.c (grub_millisleep): Removed. (grub_machine_init): Install ieee1275_get_time_ms() implementation. (ieee1275_get_time_ms): New function. (grub_get_rtc): Now calls ieee1275_get_time_ms(), which does the real work.
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#include <grub/types.h>
#include <grub/symbol.h>
#include <grub/cpu/time.h>
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#if defined (GRUB_MACHINE_EMU) || defined (GRUB_UTIL)
Cheery-pick grub-emu split from experimental (rev 1361) 2009-11-23 Robert Millan <rmh.grub@aybabtu.com> * configure.ac: Detect all `emu' platforms. Define GRUB_MACHINE_* macros in TARGET_CFLAGS. Remove --enable-grub-emu logic. Disable include/grub/machine symlink on `emu' platforms. * genkernsyms.sh.in: Use @TARGET_CFLAGS@ during symbol generation. * gensymlist.sh.in: Likewise. * include/grub/i386/coreboot/machine.h: Remove file. * include/grub/i386/efi/machine.h: Likewise. * include/grub/i386/ieee1275/machine.h: Likewise. * include/grub/i386/pc/machine.h: Likewise. * include/grub/i386/qemu/machine.h: Likewise. * include/grub/powerpc/ieee1275/machine.h: Likewise. * include/grub/sparc64/ieee1275/machine.h: Likewise. * include/grub/x86_64/efi/machine.h: Likewise. * commands/acpi.c: Remove `<grub/machine/machine.h>'. * commands/halt.c: Likewise. * commands/reboot.c: Likewise. * include/grub/autoefi.h: Likewise. * include/grub/i386/at_keyboard.h: Likewise. * include/grub/i386/kernel.h: Likewise. * include/grub/i386/loader.h: Likewise. * include/grub/i386/pc/memory.h: Likewise. * kern/dl.c: Likewise. * kern/i386/coreboot/init.c: Likewise. * loader/i386/bsd.c: Likewise. * loader/i386/linux.c: Likewise. * loader/multiboot_loader.c: Likewise. * term/i386/pc/serial.c: Likewise. * term/usb_keyboard.c: Likewise. * include/grub/time.h [!GRUB_MACHINE_EMU]: Remove `<grub/machine/machine.h>' [!GRUB_MACHINE_EMU] (GRUB_TICKS_PER_SECOND): New macro. * util/misc.c: Remove `<grub/machine/machine.h>' and `<grub/machine/time.h>'. * Makefile.in (enable_grub_emu): Remove variable. Include $(srcdir)/conf/any-emu.mk for the `emu' platform. * conf/any-emu.rmk: New file. * conf/common.rmk (grub_emu_init.lst, grub_emu_init.h) (grub_emu_init.c): Move from here ... * conf/any-emu.rmk: ... to here. * conf/i386-coreboot.rmk (sbin_UTILITIES): Remove `grub-emu'. (grub_emu_SOURCES, grub_emu_LDFLAGS): Move from here ... * conf/any-emu.rmk: ... to here.
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#define GRUB_TICKS_PER_SECOND 100000
/* Return the real time in ticks. */
grub_uint32_t EXPORT_FUNC (grub_get_rtc) (void);
Cheery-pick grub-emu split from experimental (rev 1361) 2009-11-23 Robert Millan <rmh.grub@aybabtu.com> * configure.ac: Detect all `emu' platforms. Define GRUB_MACHINE_* macros in TARGET_CFLAGS. Remove --enable-grub-emu logic. Disable include/grub/machine symlink on `emu' platforms. * genkernsyms.sh.in: Use @TARGET_CFLAGS@ during symbol generation. * gensymlist.sh.in: Likewise. * include/grub/i386/coreboot/machine.h: Remove file. * include/grub/i386/efi/machine.h: Likewise. * include/grub/i386/ieee1275/machine.h: Likewise. * include/grub/i386/pc/machine.h: Likewise. * include/grub/i386/qemu/machine.h: Likewise. * include/grub/powerpc/ieee1275/machine.h: Likewise. * include/grub/sparc64/ieee1275/machine.h: Likewise. * include/grub/x86_64/efi/machine.h: Likewise. * commands/acpi.c: Remove `<grub/machine/machine.h>'. * commands/halt.c: Likewise. * commands/reboot.c: Likewise. * include/grub/autoefi.h: Likewise. * include/grub/i386/at_keyboard.h: Likewise. * include/grub/i386/kernel.h: Likewise. * include/grub/i386/loader.h: Likewise. * include/grub/i386/pc/memory.h: Likewise. * kern/dl.c: Likewise. * kern/i386/coreboot/init.c: Likewise. * loader/i386/bsd.c: Likewise. * loader/i386/linux.c: Likewise. * loader/multiboot_loader.c: Likewise. * term/i386/pc/serial.c: Likewise. * term/usb_keyboard.c: Likewise. * include/grub/time.h [!GRUB_MACHINE_EMU]: Remove `<grub/machine/machine.h>' [!GRUB_MACHINE_EMU] (GRUB_TICKS_PER_SECOND): New macro. * util/misc.c: Remove `<grub/machine/machine.h>' and `<grub/machine/time.h>'. * Makefile.in (enable_grub_emu): Remove variable. Include $(srcdir)/conf/any-emu.mk for the `emu' platform. * conf/any-emu.rmk: New file. * conf/common.rmk (grub_emu_init.lst, grub_emu_init.h) (grub_emu_init.c): Move from here ... * conf/any-emu.rmk: ... to here. * conf/i386-coreboot.rmk (sbin_UTILITIES): Remove `grub-emu'. (grub_emu_SOURCES, grub_emu_LDFLAGS): Move from here ... * conf/any-emu.rmk: ... to here.
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#else
#include <grub/machine/time.h>
#endif
void EXPORT_FUNC(grub_millisleep) (grub_uint32_t ms);
2008-08-05 Colin D Bennett <colin@gibibit.com> High resolution timer support. Implemented for x86 CPUs using TSC. Extracted generic grub_millisleep() so it's linked in only as needed. This requires a Pentium compatible CPU; if the RDTSC instruction is not supported, then it falls back on the generic grub_get_time_ms() implementation that uses the machine's RTC. * conf/i386-pc.rmk (kernel_img_SOURCES): Add `kern/time.c', `kern/i386/tsc.c', `kern/generic/rtc_get_time_ms.c' and `kern/generic/millisleep.c'. * conf/i386-efi.rmk (kernel_mod_SOURCES): Add `kern/i386/tsc.c', `kern/generic/rtc_get_time_ms.c' and `kern/generic/millisleep.c'. * conf/x86_64-efi.rml (kernel_mod_SOURCES): Add `kern/generic/millisleep.c' and `kern/generic/rtc_get_time_ms.c'. * conf/sparc64-ieee1275.rmk (kernel_elf_SOURCES): Likewise. * conf/powerpc-ieee1275.rmk (kernel_elf_SOURCES): Add `kern/generic/millisleep.c'. * conf/i386-ieee1275.rmk (kernel_elf_SOURCES): Likewise. * conf/i386-coreboot.rmk (kernel_elf_SOURCES): Add `kern/time.c'. * kern/generic/rtc_get_time_ms.c: New file. * kern/generic/millisleep.c: New file. * kern/misc.c: Don't include <kern/time.h> anymore. (grub_millisleep_generic): Removed. * commands/sleep.c (grub_interruptible_millisleep): Uses grub_get_time_ms() instead of grub_get_rtc(). * include/grub/i386/tsc.h (grub_get_tsc): New file. New inline function. (grub_cpu_is_cpuid_supported): New inline function. (grub_cpu_is_tsc_supported): New inline function. (grub_tsc_init): New function prototype. (grub_tsc_get_time_ms): New function prototype. * kern/i386/tsc.c (grub_get_time_ms): New file. * include/grub/time.h: Include <grub/types.h. (grub_millisleep_generic): Removed. (grub_get_time_ms): New prototype. (grub_install_get_time_ms): New prototype. (grub_rtc_get_time_ms): New prototype. * kern/time.c (grub_get_time_ms): New function. (grub_install_get_time_ms): New function. * kern/i386/efi/init.c: Include <grub/cpu/tsc.h>. Don't include <grub/time.h> anymore. (grub_millisleep): Removed. (grub_machine_init): Call grub_tsc_init. * kern/i386/linuxbios/init.c (grub_machine_init): Install the RTC get_time_ms() implementation. * kern/sparc64/ieee1275/init.c (grub_millisleep): Removed. (ieee1275_get_time_ms): New function. (grub_machine_init): Install get_time_ms() implementation. * kern/i386/pc/init.c: Include <grub/cpu/tsc.h>. (grub_machine_init): Call grub_tsc_init(). (grub_millisleep): Removed. * kern/ieee1275/init.c (grub_millisleep): Removed. (grub_machine_init): Install ieee1275_get_time_ms() implementation. (ieee1275_get_time_ms): New function. (grub_get_rtc): Now calls ieee1275_get_time_ms(), which does the real work.
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grub_uint64_t EXPORT_FUNC(grub_get_time_ms) (void);
grub_uint64_t grub_rtc_get_time_ms (void);
static __inline void
grub_sleep (grub_uint32_t s)
{
grub_millisleep (1000 * s);
}
2008-08-05 Colin D Bennett <colin@gibibit.com> High resolution timer support. Implemented for x86 CPUs using TSC. Extracted generic grub_millisleep() so it's linked in only as needed. This requires a Pentium compatible CPU; if the RDTSC instruction is not supported, then it falls back on the generic grub_get_time_ms() implementation that uses the machine's RTC. * conf/i386-pc.rmk (kernel_img_SOURCES): Add `kern/time.c', `kern/i386/tsc.c', `kern/generic/rtc_get_time_ms.c' and `kern/generic/millisleep.c'. * conf/i386-efi.rmk (kernel_mod_SOURCES): Add `kern/i386/tsc.c', `kern/generic/rtc_get_time_ms.c' and `kern/generic/millisleep.c'. * conf/x86_64-efi.rml (kernel_mod_SOURCES): Add `kern/generic/millisleep.c' and `kern/generic/rtc_get_time_ms.c'. * conf/sparc64-ieee1275.rmk (kernel_elf_SOURCES): Likewise. * conf/powerpc-ieee1275.rmk (kernel_elf_SOURCES): Add `kern/generic/millisleep.c'. * conf/i386-ieee1275.rmk (kernel_elf_SOURCES): Likewise. * conf/i386-coreboot.rmk (kernel_elf_SOURCES): Add `kern/time.c'. * kern/generic/rtc_get_time_ms.c: New file. * kern/generic/millisleep.c: New file. * kern/misc.c: Don't include <kern/time.h> anymore. (grub_millisleep_generic): Removed. * commands/sleep.c (grub_interruptible_millisleep): Uses grub_get_time_ms() instead of grub_get_rtc(). * include/grub/i386/tsc.h (grub_get_tsc): New file. New inline function. (grub_cpu_is_cpuid_supported): New inline function. (grub_cpu_is_tsc_supported): New inline function. (grub_tsc_init): New function prototype. (grub_tsc_get_time_ms): New function prototype. * kern/i386/tsc.c (grub_get_time_ms): New file. * include/grub/time.h: Include <grub/types.h. (grub_millisleep_generic): Removed. (grub_get_time_ms): New prototype. (grub_install_get_time_ms): New prototype. (grub_rtc_get_time_ms): New prototype. * kern/time.c (grub_get_time_ms): New function. (grub_install_get_time_ms): New function. * kern/i386/efi/init.c: Include <grub/cpu/tsc.h>. Don't include <grub/time.h> anymore. (grub_millisleep): Removed. (grub_machine_init): Call grub_tsc_init. * kern/i386/linuxbios/init.c (grub_machine_init): Install the RTC get_time_ms() implementation. * kern/sparc64/ieee1275/init.c (grub_millisleep): Removed. (ieee1275_get_time_ms): New function. (grub_machine_init): Install get_time_ms() implementation. * kern/i386/pc/init.c: Include <grub/cpu/tsc.h>. (grub_machine_init): Call grub_tsc_init(). (grub_millisleep): Removed. * kern/ieee1275/init.c (grub_millisleep): Removed. (grub_machine_init): Install ieee1275_get_time_ms() implementation. (ieee1275_get_time_ms): New function. (grub_get_rtc): Now calls ieee1275_get_time_ms(), which does the real work.
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void grub_install_get_time_ms (grub_uint64_t (*get_time_ms_func) (void));
#endif /* ! KERNEL_TIME_HEADER */