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/* $Id: loadmmu.c,v 1.5 2000/01/27 01:05:24 ralf Exp $
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
* Copyright (C) 1997, 1999 Ralf Baechle (ralf@gnu.org)
* Copyright (C) 1999 Silicon Graphics, Inc.
*/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/system.h>
#include <asm/bootinfo.h>
#include <asm/sgialib.h>
/* memory functions */
void (*_clear_page)(void * page);
void (*_copy_page)(void * to, void * from);
/* Cache operations. */
void (*_flush_cache_all)(void);
void (*_flush_cache_mm)(struct mm_struct *mm);
void (*_flush_cache_range)(struct mm_struct *mm, unsigned long start,
unsigned long end);
void (*_flush_cache_page)(struct vm_area_struct *vma, unsigned long page);
void (*_flush_page_to_ram)(struct page * page);
/* MIPS specific cache operations */
void (*_flush_cache_sigtramp)(unsigned long addr);
void (*_flush_cache_l2)(void);
/* DMA cache operations. */
void (*_dma_cache_wback_inv)(unsigned long start, unsigned long size);
void (*_dma_cache_wback)(unsigned long start, unsigned long size);
void (*_dma_cache_inv)(unsigned long start, unsigned long size);
/* TLB operations. */
void (*_flush_tlb_all)(void);
void (*_flush_tlb_mm)(struct mm_struct *mm);
void (*_flush_tlb_range)(struct mm_struct *mm, unsigned long start,
unsigned long end);
void (*_flush_tlb_page)(struct vm_area_struct *vma, unsigned long page);
/* Miscellaneous. */
void (*update_mmu_cache)(struct vm_area_struct * vma,
unsigned long address, pte_t pte);
void (*_show_regs)(struct pt_regs *);
int (*_user_mode)(struct pt_regs *);
extern void ld_mmu_r4xx0(void);
extern void ld_mmu_andes(void);
void __init load_mmu(void)
{
switch(mips_cputype) {
#if defined (CONFIG_CPU_R4300) \
|| defined (CONFIG_CPU_R4X00) \
|| defined (CONFIG_CPU_R5000) \
|| defined (CONFIG_CPU_NEVADA)
case CPU_R4000PC:
case CPU_R4000SC:
case CPU_R4000MC:
case CPU_R4200:
case CPU_R4300:
case CPU_R4400PC:
case CPU_R4400SC:
case CPU_R4400MC:
case CPU_R4600:
case CPU_R4640:
case CPU_R4650:
case CPU_R4700:
case CPU_R5000:
case CPU_R5000A:
case CPU_NEVADA:
printk("Loading R4000 MMU routines.\n");
ld_mmu_r4xx0();
break;
#endif
#if defined (CONFIG_CPU_R10000)
case CPU_R10000:
printk("Loading R10000 MMU routines.\n");
ld_mmu_andes();
break;
#endif
default:
/* XXX We need an generic routine in the MIPS port
* XXX to jabber stuff onto the screen on all machines
* XXX before the console is setup. The ARCS prom
* XXX routines look good for this, but only the SGI
* XXX code has a full library for that at this time.
*/
panic("Yeee, unsupported mmu/cache architecture or "
"wrong compiletime kernel configuration.");
}
}
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