151 lines
6.1 KiB
C
151 lines
6.1 KiB
C
/*
|
|
* tie.h -- compile-time HAL definitions dependent on CORE & TIE configuration
|
|
*
|
|
* NOTE: This header file is not meant to be included directly.
|
|
*/
|
|
|
|
/* This header file describes this specific Xtensa processor's TIE extensions
|
|
that extend basic Xtensa core functionality. It is customized to this
|
|
Xtensa processor configuration.
|
|
|
|
Copyright (c) 1999-2010 Tensilica Inc.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining
|
|
a copy of this software and associated documentation files (the
|
|
"Software"), to deal in the Software without restriction, including
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
|
distribute, sublicense, and/or sell copies of the Software, and to
|
|
permit persons to whom the Software is furnished to do so, subject to
|
|
the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included
|
|
in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
|
|
#ifndef _XTENSA_CORE_TIE_H
|
|
#define _XTENSA_CORE_TIE_H
|
|
|
|
#define XCHAL_CP_NUM 1 /* number of coprocessors */
|
|
#define XCHAL_CP_MAX 8 /* max CP ID + 1 (0 if none) */
|
|
#define XCHAL_CP_MASK 0x80 /* bitmask of all CPs by ID */
|
|
#define XCHAL_CP_PORT_MASK 0x80 /* bitmask of only port CPs */
|
|
|
|
/* Basic parameters of each coprocessor: */
|
|
#define XCHAL_CP7_NAME "XTIOP"
|
|
#define XCHAL_CP7_IDENT XTIOP
|
|
#define XCHAL_CP7_SA_SIZE 0 /* size of state save area */
|
|
#define XCHAL_CP7_SA_ALIGN 1 /* min alignment of save area */
|
|
#define XCHAL_CP_ID_XTIOP 7 /* coprocessor ID (0..7) */
|
|
|
|
/* Filler info for unassigned coprocessors, to simplify arrays etc: */
|
|
#define XCHAL_CP0_SA_SIZE 0
|
|
#define XCHAL_CP0_SA_ALIGN 1
|
|
#define XCHAL_CP1_SA_SIZE 0
|
|
#define XCHAL_CP1_SA_ALIGN 1
|
|
#define XCHAL_CP2_SA_SIZE 0
|
|
#define XCHAL_CP2_SA_ALIGN 1
|
|
#define XCHAL_CP3_SA_SIZE 0
|
|
#define XCHAL_CP3_SA_ALIGN 1
|
|
#define XCHAL_CP4_SA_SIZE 0
|
|
#define XCHAL_CP4_SA_ALIGN 1
|
|
#define XCHAL_CP5_SA_SIZE 0
|
|
#define XCHAL_CP5_SA_ALIGN 1
|
|
#define XCHAL_CP6_SA_SIZE 0
|
|
#define XCHAL_CP6_SA_ALIGN 1
|
|
|
|
/* Save area for non-coprocessor optional and custom (TIE) state: */
|
|
#define XCHAL_NCP_SA_SIZE 32
|
|
#define XCHAL_NCP_SA_ALIGN 4
|
|
|
|
/* Total save area for optional and custom state (NCP + CPn): */
|
|
#define XCHAL_TOTAL_SA_SIZE 32 /* with 16-byte align padding */
|
|
#define XCHAL_TOTAL_SA_ALIGN 4 /* actual minimum alignment */
|
|
|
|
/*
|
|
* Detailed contents of save areas.
|
|
* NOTE: caller must define the XCHAL_SA_REG macro (not defined here)
|
|
* before expanding the XCHAL_xxx_SA_LIST() macros.
|
|
*
|
|
* XCHAL_SA_REG(s,ccused,abikind,kind,opt,name,galign,align,asize,
|
|
* dbnum,base,regnum,bitsz,gapsz,reset,x...)
|
|
*
|
|
* s = passed from XCHAL_*_LIST(s), eg. to select how to expand
|
|
* ccused = set if used by compiler without special options or code
|
|
* abikind = 0 (caller-saved), 1 (callee-saved), or 2 (thread-global)
|
|
* kind = 0 (special reg), 1 (TIE user reg), or 2 (TIE regfile reg)
|
|
* opt = 0 (custom TIE extension or coprocessor), or 1 (optional reg)
|
|
* name = lowercase reg name (no quotes)
|
|
* galign = group byte alignment (power of 2) (galign >= align)
|
|
* align = register byte alignment (power of 2)
|
|
* asize = allocated size in bytes (asize*8 == bitsz + gapsz + padsz)
|
|
* (not including any pad bytes required to galign this or next reg)
|
|
* dbnum = unique target number f/debug (see <xtensa-libdb-macros.h>)
|
|
* base = reg shortname w/o index (or sr=special, ur=TIE user reg)
|
|
* regnum = reg index in regfile, or special/TIE-user reg number
|
|
* bitsz = number of significant bits (regfile width, or ur/sr mask bits)
|
|
* gapsz = intervening bits, if bitsz bits not stored contiguously
|
|
* (padsz = pad bits at end [TIE regfile] or at msbits [ur,sr] of asize)
|
|
* reset = register reset value (or 0 if undefined at reset)
|
|
* x = reserved for future use (0 until then)
|
|
*
|
|
* To filter out certain registers, e.g. to expand only the non-global
|
|
* registers used by the compiler, you can do something like this:
|
|
*
|
|
* #define XCHAL_SA_REG(s,ccused,p...) SELCC##ccused(p)
|
|
* #define SELCC0(p...)
|
|
* #define SELCC1(abikind,p...) SELAK##abikind(p)
|
|
* #define SELAK0(p...) REG(p)
|
|
* #define SELAK1(p...) REG(p)
|
|
* #define SELAK2(p...)
|
|
* #define REG(kind,tie,name,galn,aln,asz,csz,dbnum,base,rnum,bsz,rst,x...) \
|
|
* ...what you want to expand...
|
|
*/
|
|
|
|
#define XCHAL_NCP_SA_NUM 8
|
|
#define XCHAL_NCP_SA_LIST(s) \
|
|
XCHAL_SA_REG(s,1,2,1,1, threadptr, 4, 4, 4,0x03E7, ur,231, 32,0,0,0) \
|
|
XCHAL_SA_REG(s,1,0,0,1, acclo, 4, 4, 4,0x0210, sr,16 , 32,0,0,0) \
|
|
XCHAL_SA_REG(s,1,0,0,1, acchi, 4, 4, 4,0x0211, sr,17 , 8,0,0,0) \
|
|
XCHAL_SA_REG(s,0,0,0,1, m0, 4, 4, 4,0x0220, sr,32 , 32,0,0,0) \
|
|
XCHAL_SA_REG(s,0,0,0,1, m1, 4, 4, 4,0x0221, sr,33 , 32,0,0,0) \
|
|
XCHAL_SA_REG(s,0,0,0,1, m2, 4, 4, 4,0x0222, sr,34 , 32,0,0,0) \
|
|
XCHAL_SA_REG(s,0,0,0,1, m3, 4, 4, 4,0x0223, sr,35 , 32,0,0,0) \
|
|
XCHAL_SA_REG(s,0,0,0,1, scompare1, 4, 4, 4,0x020C, sr,12 , 32,0,0,0)
|
|
|
|
#define XCHAL_CP0_SA_NUM 0
|
|
#define XCHAL_CP0_SA_LIST(s) /* empty */
|
|
|
|
#define XCHAL_CP1_SA_NUM 0
|
|
#define XCHAL_CP1_SA_LIST(s) /* empty */
|
|
|
|
#define XCHAL_CP2_SA_NUM 0
|
|
#define XCHAL_CP2_SA_LIST(s) /* empty */
|
|
|
|
#define XCHAL_CP3_SA_NUM 0
|
|
#define XCHAL_CP3_SA_LIST(s) /* empty */
|
|
|
|
#define XCHAL_CP4_SA_NUM 0
|
|
#define XCHAL_CP4_SA_LIST(s) /* empty */
|
|
|
|
#define XCHAL_CP5_SA_NUM 0
|
|
#define XCHAL_CP5_SA_LIST(s) /* empty */
|
|
|
|
#define XCHAL_CP6_SA_NUM 0
|
|
#define XCHAL_CP6_SA_LIST(s) /* empty */
|
|
|
|
#define XCHAL_CP7_SA_NUM 0
|
|
#define XCHAL_CP7_SA_LIST(s) /* empty */
|
|
|
|
/* Byte length of instruction from its first nibble (op0 field), per FLIX. */
|
|
#define XCHAL_OP0_FORMAT_LENGTHS 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3
|
|
|
|
#endif /*_XTENSA_CORE_TIE_H*/
|
|
|