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https://gitlab.com/qemu-project/openbios.git
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189c9077a1
It gets up to the boot prompt and works rather good so far, though I haven't been able to run a kernel yet. For more recent PowerPC CPUs the PTE layout has changed, so we need to take that into account and create PTEs according to the new layout and at the new physical positions. Signed-off-by: Alexander Graf <alex@csgraf.de> Signed-off-by: Laurent Vivier <Laurent@vivier.eu> git-svn-id: svn://coreboot.org/openbios/openbios-devel@461 f158a5a8-5612-0410-a976-696ce0be7e32
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
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* Creation Date: <1999/11/16 00:47:06 samuel>
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* Time-stamp: <2003/10/18 13:28:14 samuel>
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*
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* <ofmem.h>
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*
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*
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*
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* Copyright (C) 1999, 2002 Samuel Rydh (samuel@ibrium.se)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation
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*
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*/
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#ifndef _H_OFMEM
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#define _H_OFMEM
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extern void ofmem_cleanup( void );
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extern void ofmem_init( void );
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extern ulong ofmem_claim( ulong addr, ulong size, ulong align );
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extern ulong ofmem_claim_phys( ulong mphys, ulong size, ulong align );
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extern ulong ofmem_claim_virt( ulong mvirt, ulong size, ulong align );
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extern int ofmem_map( ulong phys, ulong virt, ulong size, int mode );
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extern void ofmem_release( ulong virt, ulong size );
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extern ulong ofmem_translate( ulong virt, int *ret_mode );
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#ifdef CONFIG_PPC
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#define PAGE_SHIFT 12
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ulong get_ram_size( void );
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ulong get_ram_top( void );
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ulong get_ram_bottom( void );
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void dsi_exception( void );
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void isi_exception( void );
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void setup_mmu( ulong ramsize );
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void ofmem_register( phandle_t ph );
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#elif defined(CONFIG_SPARC32)
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#define PAGE_SHIFT 12
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/* arch/sparc32/lib.c */
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struct mem;
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extern struct mem cdvmem;
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void mem_init(struct mem *t, char *begin, char *limit);
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void *mem_alloc(struct mem *t, int size, int align);
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int map_page(unsigned long va, uint64_t epa, int type);
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void *map_io(uint64_t pa, int size);
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#endif
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#ifdef PAGE_SHIFT
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#define PAGE_SIZE (1 << PAGE_SHIFT)
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#define PAGE_MASK (~(PAGE_SIZE - 1))
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#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
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#endif
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#endif /* _H_OFMEM */
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