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/****************************************************************************
* YABEL BIOS Emulator
*
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Copyright (c) 2008 Pattrick Hueper <phueper@hueper.net>
****************************************************************************/
/* this file contains functions provided by SLOF, that the current biosemu implementation needs
* they should go away in the future...
*/
#include <types.h>
#include <string.h>
#include <device/device.h>
#include "../debug.h"
#include "../biosemu.h"
#include <vbe.h>
#include "../compat/time.h"
#define VMEM_SIZE (1024 * 1024) /* 1 MB */
#if !CONFIG_YABEL_DIRECTHW
#if CONFIG_YABEL_VIRTMEM_LOCATION
u8* vmem = (u8 *) CONFIG_YABEL_VIRTMEM_LOCATION;
#else
u8* vmem = (u8 *) (16*1024*1024); /* default to 16MB */
#endif
#else
u8* vmem = NULL;
#endif
extern u8 *biosmem;
void run_bios(struct device * dev, unsigned long addr)
{
biosmem = vmem;
biosemu(vmem, VMEM_SIZE, dev, addr);
#if CONFIG_FRAMEBUFFER_SET_VESA_MODE
vbe_set_graphics();
#endif
}
unsigned long tb_freq = 0;
u64 get_time(void)
{
u64 act = 0;
#if CONFIG_ARCH_X86
u32 eax, edx;
__asm__ __volatile__(
"rdtsc"
: "=a"(eax), "=d"(edx)
: /* no inputs, no clobber */);
act = ((u64) edx << 32) | eax;
#endif
return act;
}
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