grub/grub-core/kern/mips/init.c
Vladimir 'phcoder' Serbinenko b772baedcd Reduce memory footprint on SGI by putting modules before the kernel
as opposed to after.

	* grub-core/Makefile.core.def (kernel): Increase linking address.
	(none_decompress): Likewise.
	(xz_decompress): Likewise.
	* grub-core/boot/mips/startup_raw.S: Use prewritten uncompression
	address.
	* grub-core/kern/mips/arc/init.c (grub_machine_init): Handle memory
	layout change.
	(grub_arch_modules_addr): New function.
	* grub-core/kern/mips/init.c (grub_arch_modules_addr): Moved from here...
	* grub-core/kern/mips/loongson/init.c (grub_arch_modules_addr): .. here
	* grub-core/kern/mips/qemu_mips/init.c (grub_arch_modules_addr): ... and
	here.
	* grub-core/kern/mips/startup.S (total_size): Rename to ...
	(grub_total_modules_size): ... this. Make global.
	[GRUB_MACHINE_ARC]: Don't attempt to move modules out of the bss.
	* include/grub/offsets.h (GRUB_KERNEL_MIPS_LOONGSON_UNCOMPRESSED_ADDR):
	New definition.
	(GRUB_KERNEL_MIPS_QEMU_MIPS_UNCOMPRESSED_ADDR): Likewise.
	(GRUB_KERNEL_MIPS_ARC_UNCOMPRESSED_ADDR): Likewise.
	(GRUB_KERNEL_MACHINE_UNCOMPRESSED_ADDR): Likewise.
	(GRUB_KERNEL_MIPS_ARC_LINK_ADDR): Increased.
	* util/grub-mkimage.c (image_target_desc): New flag
	PLATFORM_FLAGS_MODULES_BEFORE_KERNEL.
	(image_targets): Set PLATFORM_FLAGS_MODULES_BEFORE_KERNEL on mips-arc.
	(generate_image): Handle images with modules before kernel.
2011-05-17 21:15:54 +02:00

44 lines
1.2 KiB
C

/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 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/>.
*/
#include <grub/kernel.h>
#include <grub/env.h>
#include <grub/cpu/time.h>
#include <grub/cpu/mips.h>
/* FIXME: use interrupt to count high. */
grub_uint64_t
grub_get_rtc (void)
{
static grub_uint32_t high = 0;
static grub_uint32_t last = 0;
grub_uint32_t low;
asm volatile ("mfc0 %0, " GRUB_CPU_MIPS_COP0_TIMER_COUNT : "=r" (low));
if (low < last)
high++;
last = low;
return (((grub_uint64_t) high) << 32) | low;
}
void
grub_machine_set_prefix (void)
{
grub_env_set ("prefix", grub_prefix);
}