diff options
Diffstat (limited to 'qemu/roms/openbios/include/libopenbios/ofmem.h')
| -rw-r--r-- | qemu/roms/openbios/include/libopenbios/ofmem.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/qemu/roms/openbios/include/libopenbios/ofmem.h b/qemu/roms/openbios/include/libopenbios/ofmem.h new file mode 100644 index 000000000..0b19db1ca --- /dev/null +++ b/qemu/roms/openbios/include/libopenbios/ofmem.h @@ -0,0 +1,145 @@ +/* + * Creation Date: <1999/11/16 00:47:06 samuel> + * Time-stamp: <2003/10/18 13:28:14 samuel> + * + * <ofmem.h> + * + * + * + * Copyright (C) 1999, 2002 Samuel Rydh (samuel@ibrium.se) + * + * This program 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 + * + */ + +#ifndef _H_OFMEM +#define _H_OFMEM + +#include "kernel/stack.h" + +typedef struct alloc_desc { + struct alloc_desc *next; + ucell size; /* size (including) this struct */ +} alloc_desc_t; + +typedef struct mem_range { + struct mem_range *next; + phys_addr_t start; /* sizeof(phys) >= sizeof(virt), e.g SPARC32 */ + ucell size; +} range_t; + +typedef struct trans { + struct trans *next; + ucell virt; /* chain is sorted by virt */ + ucell size; + phys_addr_t phys; + ucell mode; +} translation_t; + +/* ofmem private data */ +typedef struct { + ucell ramsize; + char *next_malloc; + alloc_desc_t *mfree; /* list of free malloc blocks */ + + range_t *phys_range; + range_t *virt_range; + range_t *io_range; + + translation_t *trans; /* this is really a translation_t */ +} ofmem_t; + +/* structure for retained data */ +typedef struct { + ucell magic; + ucell numentries; + range_t retain_phys_range[8]; /* physical memory that should survive a warm reset */ +} retain_t; + +/* TODO: temporary migration interface */ +extern ofmem_t* ofmem_arch_get_private(void); +extern void* ofmem_arch_get_malloc_base(void); +extern ucell ofmem_arch_get_heap_top(void); +extern ucell ofmem_arch_get_virt_top(void); +extern ucell ofmem_arch_get_iomem_base(void); +extern ucell ofmem_arch_get_iomem_top(void); +extern retain_t* ofmem_arch_get_retained(void); +extern int ofmem_arch_get_physaddr_cellsize(void); +extern int ofmem_arch_encode_physaddr(ucell *p, phys_addr_t value); +extern int ofmem_arch_get_available_entry_size(phandle_t ph); +extern void ofmem_arch_create_available_entry(phandle_t ph, ucell *availentry, phys_addr_t start, ucell size); +extern int ofmem_arch_get_translation_entry_size(void); +extern void ofmem_arch_create_translation_entry(ucell *transentry, translation_t *t); +extern ucell ofmem_arch_default_translation_mode( phys_addr_t phys ); +extern ucell ofmem_arch_io_translation_mode( phys_addr_t phys ); +extern void ofmem_arch_map_pages(phys_addr_t phys, ucell virt, ucell size, + ucell mode); +extern void ofmem_arch_unmap_pages(ucell virt, ucell size); +/* sparc64 uses this method */ +extern int ofmem_map_page_range( phys_addr_t phys, ucell virt, ucell size, + ucell mode ); + +/* Private functions for mapping between physical/virtual addresses */ +extern phys_addr_t va2pa(unsigned long va); +extern unsigned long pa2va(phys_addr_t pa); + +/* malloc interface */ +extern int ofmem_posix_memalign( void **memptr, size_t alignment, size_t size ); +extern void* ofmem_malloc( size_t size ); +extern void ofmem_free( void *ptr ); +extern void* ofmem_realloc( void *ptr, size_t size ); + +/* ofmem_common.c */ + +extern void ofmem_cleanup( void ); +extern void ofmem_init( void ); + +/* + * register /memory and /virtual-memory handles + * ofmem module will update "available" and "translations" properties + * using these handles + * + * to disable updating /memory properties pass zero memory handle + */ +extern void ofmem_register( phandle_t ph_memory, phandle_t ph_mmu ); + +extern ucell ofmem_claim( ucell addr, ucell size, ucell align ); +extern phys_addr_t ofmem_claim_phys( phys_addr_t mphys, ucell size, ucell align ); +extern ucell ofmem_claim_virt( ucell mvirt, ucell size, ucell align ); +extern ucell ofmem_claim_io( ucell virt, ucell size, ucell align ); + +extern phys_addr_t ofmem_retain( phys_addr_t phys, ucell size, ucell align ); + +extern int ofmem_map( phys_addr_t phys, ucell virt, ucell size, ucell mode ); +extern int ofmem_unmap( ucell virt, ucell size ); +extern ucell ofmem_map_io( phys_addr_t phys, ucell size ); + +extern void ofmem_release( ucell virt, ucell size ); +extern void ofmem_release_phys( phys_addr_t phys, ucell size ); +extern void ofmem_release_virt( ucell virt, ucell size ); +extern void ofmem_release_io( ucell virt, ucell size ); +extern phys_addr_t ofmem_translate( ucell virt, ucell *ret_mode ); + +/* memory and virtual-memory nodes */ +extern phandle_t s_phandle_memory; +extern phandle_t s_phandle_mmu; + +#define PAGE_SIZE (1 << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE - 1)) +#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) + +#if defined(CONFIG_DEBUG_OFMEM) + #define DEBUG_OFMEM 1 +#else + #define DEBUG_OFMEM 0 +#endif + +#define OFMEM_TRACE(fmt, ...) do { \ + if (DEBUG_OFMEM) { \ + printk("OFMEM: " fmt, ## __VA_ARGS__); \ + } \ +} while (0); + +#endif /* _H_OFMEM */ |