diff options
Diffstat (limited to 'drivers/staging/tidspbridge/dynload/dload_internal.h')
| -rw-r--r-- | drivers/staging/tidspbridge/dynload/dload_internal.h | 344 |
1 files changed, 0 insertions, 344 deletions
diff --git a/drivers/staging/tidspbridge/dynload/dload_internal.h b/drivers/staging/tidspbridge/dynload/dload_internal.h deleted file mode 100644 index b9d079b96190..000000000000 --- a/drivers/staging/tidspbridge/dynload/dload_internal.h +++ /dev/null @@ -1,344 +0,0 @@ -/* - * dload_internal.h - * - * DSP-BIOS Bridge driver support functions for TI OMAP processors. - * - * Copyright (C) 2005-2006 Texas Instruments, Inc. - * - * This package is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#ifndef _DLOAD_INTERNAL_ -#define _DLOAD_INTERNAL_ - -#include <linux/types.h> - -/* - * Internal state definitions for the dynamic loader - */ - -/* type used for relocation intermediate results */ -typedef s32 rvalue; - -/* unsigned version of same; must have at least as many bits */ -typedef u32 urvalue; - -/* - * Dynamic loader configuration constants - */ -/* error issued if input has more sections than this limit */ -#define REASONABLE_SECTION_LIMIT 100 - -/* (Addressable unit) value used to clear BSS section */ -#define DLOAD_FILL_BSS 0 - -/* - * Reorder maps explained (?) - * - * The doff file format defines a 32-bit pattern used to determine the - * byte order of an image being read. That value is - * BYTE_RESHUFFLE_VALUE == 0x00010203 - * For purposes of the reorder routine, we would rather have the all-is-OK - * for 32-bits pattern be 0x03020100. This first macro makes the - * translation from doff file header value to MAP value: */ -#define REORDER_MAP(rawmap) ((rawmap) ^ 0x3030303) -/* This translation is made in dload_headers. Thereafter, the all-is-OK - * value for the maps stored in dlthis is REORDER_MAP(BYTE_RESHUFFLE_VALUE). - * But sadly, not all bits of the doff file are 32-bit integers. - * The notable exceptions are strings and image bits. - * Strings obey host byte order: */ -#if defined(_BIG_ENDIAN) -#define HOST_BYTE_ORDER(cookedmap) ((cookedmap) ^ 0x3030303) -#else -#define HOST_BYTE_ORDER(cookedmap) (cookedmap) -#endif -/* Target bits consist of target AUs (could be bytes, or 16-bits, - * or 32-bits) stored as an array in host order. A target order - * map is defined by: */ -#if !defined(_BIG_ENDIAN) || TARGET_AU_BITS > 16 -#define TARGET_ORDER(cookedmap) (cookedmap) -#elif TARGET_AU_BITS > 8 -#define TARGET_ORDER(cookedmap) ((cookedmap) ^ 0x2020202) -#else -#define TARGET_ORDER(cookedmap) ((cookedmap) ^ 0x3030303) -#endif - -/* forward declaration for handle returned by dynamic loader */ -struct my_handle; - -/* - * a list of module handles, which mirrors the debug list on the target - */ -struct dbg_mirror_root { - /* must be same as dbg_mirror_list; __DLModules address on target */ - u32 dbthis; - struct my_handle *next; /* must be same as dbg_mirror_list */ - u16 changes; /* change counter */ - u16 refcount; /* number of modules referencing this root */ -}; - -struct dbg_mirror_list { - u32 dbthis; - struct my_handle *next, *prev; - struct dbg_mirror_root *root; - u16 dbsiz; - u32 context; /* Save context for .dllview memory allocation */ -}; - -#define VARIABLE_SIZE 1 -/* - * the structure we actually return as an opaque module handle - */ -struct my_handle { - struct dbg_mirror_list dm; /* !!! must be first !!! */ - /* sections following << 1, LSB is set for big-endian target */ - u16 secn_count; - struct ldr_section_info secns[VARIABLE_SIZE]; -}; -#define MY_HANDLE_SIZE (sizeof(struct my_handle) -\ - sizeof(struct ldr_section_info)) -/* real size of my_handle */ - -/* - * reduced symbol structure used for symbols during relocation - */ -struct local_symbol { - s32 value; /* Relocated symbol value */ - s32 delta; /* Original value in input file */ - s16 secnn; /* section number */ - s16 sclass; /* symbol class */ -}; - -/* - * Trampoline data structures - */ -#define TRAMP_NO_GEN_AVAIL 65535 -#define TRAMP_SYM_PREFIX "__$dbTR__" -#define TRAMP_SECT_NAME ".dbTR" -/* MUST MATCH THE LENGTH ABOVE!! */ -#define TRAMP_SYM_PREFIX_LEN 9 -/* Includes NULL termination */ -#define TRAMP_SYM_HEX_ASCII_LEN 9 - -#define GET_CONTAINER(ptr, type, field) ((type *)((unsigned long)ptr -\ - (unsigned long)(&((type *)0)->field))) -#ifndef FIELD_OFFSET -#define FIELD_OFFSET(type, field) ((unsigned long)(&((type *)0)->field)) -#endif - -/* - The trampoline code for the target is located in a table called - "tramp_gen_info" with is indexed by looking up the index in the table - "tramp_map". The tramp_map index is acquired using the target - HASH_FUNC on the relocation type that caused the trampoline. Each - trampoline code table entry MUST follow this format: - - |----------------------------------------------| - | tramp_gen_code_hdr | - |----------------------------------------------| - | Trampoline image code | - | (the raw instruction code for the target) | - |----------------------------------------------| - | Relocation entries for the image code | - |----------------------------------------------| - - This is very similar to how image data is laid out in the DOFF file - itself. - */ -struct tramp_gen_code_hdr { - u32 tramp_code_size; /* in BYTES */ - u32 num_relos; - u32 relo_offset; /* in BYTES */ -}; - -struct tramp_img_pkt { - struct tramp_img_pkt *next; /* MUST BE FIRST */ - u32 base; - struct tramp_gen_code_hdr hdr; - u8 payload[VARIABLE_SIZE]; -}; - -struct tramp_img_dup_relo { - struct tramp_img_dup_relo *next; - struct reloc_record_t relo; -}; - -struct tramp_img_dup_pkt { - struct tramp_img_dup_pkt *next; /* MUST BE FIRST */ - s16 secnn; - u32 offset; - struct image_packet_t img_pkt; - struct tramp_img_dup_relo *relo_chain; - - /* PAYLOAD OF IMG PKT FOLLOWS */ -}; - -struct tramp_sym { - struct tramp_sym *next; /* MUST BE FIRST */ - u32 index; - u32 str_index; - struct local_symbol sym_info; -}; - -struct tramp_string { - struct tramp_string *next; /* MUST BE FIRST */ - u32 index; - char str[VARIABLE_SIZE]; /* NULL terminated */ -}; - -struct tramp_info { - u32 tramp_sect_next_addr; - struct ldr_section_info sect_info; - - struct tramp_sym *symbol_head; - struct tramp_sym *symbol_tail; - u32 tramp_sym_next_index; - struct local_symbol *final_sym_table; - - struct tramp_string *string_head; - struct tramp_string *string_tail; - u32 tramp_string_next_index; - u32 tramp_string_size; - char *final_string_table; - - struct tramp_img_pkt *tramp_pkts; - struct tramp_img_dup_pkt *dup_pkts; -}; - -/* - * States of the .cinit state machine - */ -enum cinit_mode { - CI_COUNT = 0, /* expecting a count */ - CI_ADDRESS, /* expecting an address */ -#if CINIT_ALIGN < CINIT_ADDRESS /* handle case of partial address field */ - CI_PARTADDRESS, /* have only part of the address */ -#endif - CI_COPY, /* in the middle of copying data */ - CI_DONE /* end of .cinit table */ -}; - -/* - * The internal state of the dynamic loader, which is passed around as - * an object - */ -struct dload_state { - struct dynamic_loader_stream *strm; /* The module input stream */ - struct dynamic_loader_sym *mysym; /* Symbols for this session */ - /* target memory allocator */ - struct dynamic_loader_allocate *myalloc; - struct dynamic_loader_initialize *myio; /* target memory initializer */ - unsigned myoptions; /* Options parameter dynamic_load_module */ - - char *str_head; /* Pointer to string table */ -#if BITS_PER_AU > BITS_PER_BYTE - char *str_temp; /* Pointer to temporary buffer for strings */ - /* big enough to hold longest string */ - unsigned temp_len; /* length of last temporary string */ - char *xstrings; /* Pointer to buffer for expanded */ - /* strings for sec names */ -#endif - /* Total size of strings for DLLView section names */ - unsigned debug_string_size; - /* Pointer to parallel section info for allocated sections only */ - struct doff_scnhdr_t *sect_hdrs; /* Pointer to section table */ - struct ldr_section_info *ldr_sections; -#if TMS32060 - /* The address of the start of the .bss section */ - ldr_addr bss_run_base; -#endif - struct local_symbol *local_symtab; /* Relocation symbol table */ - - /* pointer to DL section info for the section being relocated */ - struct ldr_section_info *image_secn; - /* change in run address for current section during relocation */ - ldr_addr delta_runaddr; - ldr_addr image_offset; /* offset of current packet in section */ - enum cinit_mode cinit_state; /* current state of cload_cinit() */ - int cinit_count; /* the current count */ - ldr_addr cinit_addr; /* the current address */ - s16 cinit_page; /* the current page */ - /* Handle to be returned by dynamic_load_module */ - struct my_handle *myhandle; - unsigned dload_errcount; /* Total # of errors reported so far */ - /* Number of target sections that require allocation and relocation */ - unsigned allocated_secn_count; -#ifndef TARGET_ENDIANNESS - int big_e_target; /* Target data in big-endian format */ -#endif - /* map for reordering bytes, 0 if not needed */ - u32 reorder_map; - struct doff_filehdr_t dfile_hdr; /* DOFF file header structure */ - struct doff_verify_rec_t verify; /* Verify record */ - - struct tramp_info tramp; /* Trampoline data, if needed */ - - int relstkidx; /* index into relocation value stack */ - /* relocation value stack used in relexp.c */ - rvalue relstk[STATIC_EXPR_STK_SIZE]; - -}; - -#ifdef TARGET_ENDIANNESS -#define TARGET_BIG_ENDIAN TARGET_ENDIANNESS -#else -#define TARGET_BIG_ENDIAN (dlthis->big_e_target) -#endif - -/* - * Exports from cload.c to rest of the world - */ -extern void dload_error(struct dload_state *dlthis, const char *errtxt, ...); -extern void dload_syms_error(struct dynamic_loader_sym *syms, - const char *errtxt, ...); -extern void dload_headers(struct dload_state *dlthis); -extern void dload_strings(struct dload_state *dlthis, bool sec_names_only); -extern void dload_sections(struct dload_state *dlthis); -extern void dload_reorder(void *data, int dsiz, u32 map); -extern u32 dload_checksum(void *data, unsigned siz); - -#if HOST_ENDIANNESS -extern uint32_t dload_reverse_checksum(void *data, unsigned siz); -#if (TARGET_AU_BITS > 8) && (TARGET_AU_BITS < 32) -extern uint32_t dload_reverse_checksum16(void *data, unsigned siz); -#endif -#endif - -/* - * exported by reloc.c - */ -extern void dload_relocate(struct dload_state *dlthis, tgt_au_t *data, - struct reloc_record_t *rp, bool *tramps_generated, - bool second_pass); - -extern rvalue dload_unpack(struct dload_state *dlthis, tgt_au_t *data, - int fieldsz, int offset, unsigned sgn); - -extern int dload_repack(struct dload_state *dlthis, rvalue val, tgt_au_t *data, - int fieldsz, int offset, unsigned sgn); - -/* - * exported by tramp.c - */ -extern bool dload_tramp_avail(struct dload_state *dlthis, - struct reloc_record_t *rp); - -int dload_tramp_generate(struct dload_state *dlthis, s16 secnn, - u32 image_offset, struct image_packet_t *ipacket, - struct reloc_record_t *rp); - -extern int dload_tramp_pkt_udpate(struct dload_state *dlthis, - s16 secnn, u32 image_offset, - struct image_packet_t *ipacket); - -extern int dload_tramp_finalize(struct dload_state *dlthis); - -extern void dload_tramp_cleanup(struct dload_state *dlthis); - -#endif /* _DLOAD_INTERNAL_ */ |