diff options
Diffstat (limited to 'drivers/staging/tidspbridge/dynload/reloc_table.h')
| -rw-r--r-- | drivers/staging/tidspbridge/dynload/reloc_table.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/staging/tidspbridge/dynload/reloc_table.h b/drivers/staging/tidspbridge/dynload/reloc_table.h new file mode 100644 index 000000000000..6aab03d4668d --- /dev/null +++ b/drivers/staging/tidspbridge/dynload/reloc_table.h @@ -0,0 +1,102 @@ +/* + * reloc_table.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 _RELOC_TABLE_H_ +#define _RELOC_TABLE_H_ +/* + * Table of relocation operator properties + */ +#include <linux/types.h> + +/* How does this relocation operation access the program image? */ +#define ROP_N 0 /* does not access image */ +#define ROP_R 1 /* read from image */ +#define ROP_W 2 /* write to image */ +#define ROP_RW 3 /* read from and write to image */ + +/* For program image access, what are the overflow rules for the bit field? */ +/* Beware! Procedure repack depends on this encoding */ +#define ROP_ANY 0 /* no overflow ever, just truncate the value */ +#define ROP_SGN 1 /* signed field */ +#define ROP_UNS 2 /* unsigned field */ +#define ROP_MAX 3 /* allow maximum range of either signed or unsigned */ + +/* How does the relocation operation use the symbol reference */ +#define ROP_IGN 0 /* no symbol is referenced */ +#define ROP_LIT 0 /* use rp->UVAL literal field */ +#define ROP_SYM 1 /* symbol value is used in relocation */ +#define ROP_SYMD 2 /* delta value vs last link is used */ + +/* How does the reloc op use the stack? */ +#define RSTK_N 0 /* Does not use */ +#define RSTK_POP 1 /* Does a POP */ +#define RSTK_UOP 2 /* Unary op, stack position unaffected */ +#define RSTK_PSH 3 /* Does a push */ + +/* + * Computational actions performed by the dynamic loader + */ +enum dload_actions { + /* don't alter the current val (from stack or mem fetch) */ + RACT_VAL, + /* set value to reference amount (from symbol reference) */ + RACT_ASGN, + RACT_ADD, /* add reference to value */ + RACT_PCR, /* add reference minus PC delta to value */ + RACT_ADDISP, /* add reference plus R_DISP */ + RACT_ASGPC, /* set value to section addr plus reference */ + + RACT_PLUS, /* stack + */ + RACT_SUB, /* stack - */ + RACT_NEG, /* stack unary - */ + + RACT_MPY, /* stack * */ + RACT_DIV, /* stack / */ + RACT_MOD, /* stack % */ + + RACT_SR, /* stack unsigned >> */ + RACT_ASR, /* stack signed >> */ + RACT_SL, /* stack << */ + RACT_AND, /* stack & */ + RACT_OR, /* stack | */ + RACT_XOR, /* stack ^ */ + RACT_NOT, /* stack ~ */ + RACT_C6SECT, /* for C60 R_SECT op */ + RACT_C6BASE, /* for C60 R_BASE op */ + RACT_C6DSPL, /* for C60 scaled 15-bit displacement */ + RACT_PCR23T /* for ARM Thumb long branch */ +}; + +/* + * macros used to extract values + */ +#define RFV_POSN(aaa) ((aaa) & 0xF) +#define RFV_WIDTH(aaa) (((aaa) >> 4) & 0x3F) +#define RFV_ACTION(aaa) ((aaa) >> 10) + +#define RFV_SIGN(iii) (((iii) >> 2) & 0x3) +#define RFV_SYM(iii) (((iii) >> 4) & 0x3) +#define RFV_STK(iii) (((iii) >> 6) & 0x3) +#define RFV_ACCS(iii) ((iii) & 0x3) + +#if (TMS32060) +#define RFV_SCALE(iii) ((iii) >> 11) +#define RFV_BIGOFF(iii) (((iii) >> 8) & 0x7) +#else +#define RFV_BIGOFF(iii) ((iii) >> 8) +#endif + +#endif /* _RELOC_TABLE_H_ */ |