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[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / arch / xtensa / variants / s6000 / include / variant / tie.h
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1 /*
2 * This header file describes this specific Xtensa processor's TIE extensions
3 * that extend basic Xtensa core functionality. It is customized to this
4 * Xtensa processor configuration.
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
10 * Copyright (C) 1999-2008 Tensilica Inc.
13 #ifndef _XTENSA_CORE_TIE_H
14 #define _XTENSA_CORE_TIE_H
16 #define XCHAL_CP_NUM 2 /* number of coprocessors */
17 #define XCHAL_CP_MAX 7 /* max CP ID + 1 (0 if none) */
18 #define XCHAL_CP_MASK 0x41 /* bitmask of all CPs by ID */
19 #define XCHAL_CP_PORT_MASK 0x00 /* bitmask of only port CPs */
21 /* Basic parameters of each coprocessor: */
22 #define XCHAL_CP0_NAME "FPU"
23 #define XCHAL_CP0_IDENT FPU
24 #define XCHAL_CP0_SA_SIZE 72 /* size of state save area */
25 #define XCHAL_CP0_SA_ALIGN 4 /* min alignment of save area */
26 #define XCHAL_CP_ID_FPU 0 /* coprocessor ID (0..7) */
27 #define XCHAL_CP6_NAME "XAD"
28 #define XCHAL_CP6_IDENT XAD
29 #define XCHAL_CP6_SA_SIZE 576 /* size of state save area */
30 #define XCHAL_CP6_SA_ALIGN 16 /* min alignment of save area */
31 #define XCHAL_CP_ID_XAD 6 /* coprocessor ID (0..7) */
33 /* Filler info for unassigned coprocessors, to simplify arrays etc: */
34 #define XCHAL_CP1_SA_SIZE 0
35 #define XCHAL_CP1_SA_ALIGN 1
36 #define XCHAL_CP2_SA_SIZE 0
37 #define XCHAL_CP2_SA_ALIGN 1
38 #define XCHAL_CP3_SA_SIZE 0
39 #define XCHAL_CP3_SA_ALIGN 1
40 #define XCHAL_CP4_SA_SIZE 0
41 #define XCHAL_CP4_SA_ALIGN 1
42 #define XCHAL_CP5_SA_SIZE 0
43 #define XCHAL_CP5_SA_ALIGN 1
44 #define XCHAL_CP7_SA_SIZE 0
45 #define XCHAL_CP7_SA_ALIGN 1
47 /* Save area for non-coprocessor optional and custom (TIE) state: */
48 #define XCHAL_NCP_SA_SIZE 4
49 #define XCHAL_NCP_SA_ALIGN 4
51 /* Total save area for optional and custom state (NCP + CPn): */
52 #define XCHAL_TOTAL_SA_SIZE 672 /* with 16-byte align padding */
53 #define XCHAL_TOTAL_SA_ALIGN 16 /* actual minimum alignment */
56 * Detailed contents of save areas.
57 * NOTE: caller must define the XCHAL_SA_REG macro (not defined here)
58 * before expanding the XCHAL_xxx_SA_LIST() macros.
60 * XCHAL_SA_REG(s,ccused,abikind,kind,opt,name,galign,align,asize,
61 * dbnum,base,regnum,bitsz,gapsz,reset,x...)
63 * s = passed from XCHAL_*_LIST(s), eg. to select how to expand
64 * ccused = set if used by compiler without special options or code
65 * abikind = 0 (caller-saved), 1 (callee-saved), or 2 (thread-global)
66 * kind = 0 (special reg), 1 (TIE user reg), or 2 (TIE regfile reg)
67 * opt = 0 (custom TIE extension or coprocessor), or 1 (optional reg)
68 * name = lowercase reg name (no quotes)
69 * galign = group byte alignment (power of 2) (galign >= align)
70 * align = register byte alignment (power of 2)
71 * asize = allocated size in bytes (asize*8 == bitsz + gapsz + padsz)
72 * (not including any pad bytes required to galign this or next reg)
73 * dbnum = unique target number f/debug (see <xtensa-libdb-macros.h>)
74 * base = reg shortname w/o index (or sr=special, ur=TIE user reg)
75 * regnum = reg index in regfile, or special/TIE-user reg number
76 * bitsz = number of significant bits (regfile width, or ur/sr mask bits)
77 * gapsz = intervening bits, if bitsz bits not stored contiguously
78 * (padsz = pad bits at end [TIE regfile] or at msbits [ur,sr] of asize)
79 * reset = register reset value (or 0 if undefined at reset)
80 * x = reserved for future use (0 until then)
82 * To filter out certain registers, e.g. to expand only the non-global
83 * registers used by the compiler, you can do something like this:
85 * #define XCHAL_SA_REG(s,ccused,p...) SELCC##ccused(p)
86 * #define SELCC0(p...)
87 * #define SELCC1(abikind,p...) SELAK##abikind(p)
88 * #define SELAK0(p...) REG(p)
89 * #define SELAK1(p...) REG(p)
90 * #define SELAK2(p...)
91 * #define REG(kind,tie,name,galn,aln,asz,csz,dbnum,base,rnum,bsz,rst,x...) \
92 * ...what you want to expand...
95 #define XCHAL_NCP_SA_NUM 1
96 #define XCHAL_NCP_SA_LIST(s) \
97 XCHAL_SA_REG(s,0,0,0,1, br, 4, 4, 4,0x0204, sr,4 , 16,0,0,0)
99 #define XCHAL_CP0_SA_NUM 18
100 #define XCHAL_CP0_SA_LIST(s) \
101 XCHAL_SA_REG(s,0,0,1,0, fcr, 4, 4, 4,0x03E8, ur,232, 32,0,0,0) \
102 XCHAL_SA_REG(s,0,0,1,0, fsr, 4, 4, 4,0x03E9, ur,233, 32,0,0,0) \
103 XCHAL_SA_REG(s,0,0,2,0, f0, 4, 4, 4,0x0030, f,0 , 32,0,0,0) \
104 XCHAL_SA_REG(s,0,0,2,0, f1, 4, 4, 4,0x0031, f,1 , 32,0,0,0) \
105 XCHAL_SA_REG(s,0,0,2,0, f2, 4, 4, 4,0x0032, f,2 , 32,0,0,0) \
106 XCHAL_SA_REG(s,0,0,2,0, f3, 4, 4, 4,0x0033, f,3 , 32,0,0,0) \
107 XCHAL_SA_REG(s,0,0,2,0, f4, 4, 4, 4,0x0034, f,4 , 32,0,0,0) \
108 XCHAL_SA_REG(s,0,0,2,0, f5, 4, 4, 4,0x0035, f,5 , 32,0,0,0) \
109 XCHAL_SA_REG(s,0,0,2,0, f6, 4, 4, 4,0x0036, f,6 , 32,0,0,0) \
110 XCHAL_SA_REG(s,0,0,2,0, f7, 4, 4, 4,0x0037, f,7 , 32,0,0,0) \
111 XCHAL_SA_REG(s,0,0,2,0, f8, 4, 4, 4,0x0038, f,8 , 32,0,0,0) \
112 XCHAL_SA_REG(s,0,0,2,0, f9, 4, 4, 4,0x0039, f,9 , 32,0,0,0) \
113 XCHAL_SA_REG(s,0,0,2,0, f10, 4, 4, 4,0x003A, f,10 , 32,0,0,0) \
114 XCHAL_SA_REG(s,0,0,2,0, f11, 4, 4, 4,0x003B, f,11 , 32,0,0,0) \
115 XCHAL_SA_REG(s,0,0,2,0, f12, 4, 4, 4,0x003C, f,12 , 32,0,0,0) \
116 XCHAL_SA_REG(s,0,0,2,0, f13, 4, 4, 4,0x003D, f,13 , 32,0,0,0) \
117 XCHAL_SA_REG(s,0,0,2,0, f14, 4, 4, 4,0x003E, f,14 , 32,0,0,0) \
118 XCHAL_SA_REG(s,0,0,2,0, f15, 4, 4, 4,0x003F, f,15 , 32,0,0,0)
120 #define XCHAL_CP1_SA_NUM 0
121 #define XCHAL_CP1_SA_LIST(s) /* empty */
123 #define XCHAL_CP2_SA_NUM 0
124 #define XCHAL_CP2_SA_LIST(s) /* empty */
126 #define XCHAL_CP3_SA_NUM 0
127 #define XCHAL_CP3_SA_LIST(s) /* empty */
129 #define XCHAL_CP4_SA_NUM 0
130 #define XCHAL_CP4_SA_LIST(s) /* empty */
132 #define XCHAL_CP5_SA_NUM 0
133 #define XCHAL_CP5_SA_LIST(s) /* empty */
135 #define XCHAL_CP6_SA_NUM 46
136 #define XCHAL_CP6_SA_LIST(s) \
137 XCHAL_SA_REG(s,0,0,1,0, ldcbhi,16, 4, 4,0x0300, ur,0 , 32,0,0,0) \
138 XCHAL_SA_REG(s,0,0,1,0, ldcblo, 4, 4, 4,0x0301, ur,1 , 32,0,0,0) \
139 XCHAL_SA_REG(s,0,0,1,0, stcbhi, 4, 4, 4,0x0302, ur,2 , 32,0,0,0) \
140 XCHAL_SA_REG(s,0,0,1,0, stcblo, 4, 4, 4,0x0303, ur,3 , 32,0,0,0) \
141 XCHAL_SA_REG(s,0,0,1,0, ldbrbase, 4, 4, 4,0x0308, ur,8 , 32,0,0,0) \
142 XCHAL_SA_REG(s,0,0,1,0, ldbroff, 4, 4, 4,0x0309, ur,9 , 32,0,0,0) \
143 XCHAL_SA_REG(s,0,0,1,0, ldbrinc, 4, 4, 4,0x030A, ur,10 , 32,0,0,0) \
144 XCHAL_SA_REG(s,0,0,1,0, stbrbase, 4, 4, 4,0x030B, ur,11 , 32,0,0,0) \
145 XCHAL_SA_REG(s,0,0,1,0, stbroff, 4, 4, 4,0x030C, ur,12 , 32,0,0,0) \
146 XCHAL_SA_REG(s,0,0,1,0, stbrinc, 4, 4, 4,0x030D, ur,13 , 32,0,0,0) \
147 XCHAL_SA_REG(s,0,0,1,0, scratch0, 4, 4, 4,0x0318, ur,24 , 32,0,0,0) \
148 XCHAL_SA_REG(s,0,0,1,0, scratch1, 4, 4, 4,0x0319, ur,25 , 32,0,0,0) \
149 XCHAL_SA_REG(s,0,0,1,0, scratch2, 4, 4, 4,0x031A, ur,26 , 32,0,0,0) \
150 XCHAL_SA_REG(s,0,0,1,0, scratch3, 4, 4, 4,0x031B, ur,27 , 32,0,0,0) \
151 XCHAL_SA_REG(s,0,0,2,0, wra0,16,16,16,0x1010, wra,0 ,128,0,0,0) \
152 XCHAL_SA_REG(s,0,0,2,0, wra1,16,16,16,0x1011, wra,1 ,128,0,0,0) \
153 XCHAL_SA_REG(s,0,0,2,0, wra2,16,16,16,0x1012, wra,2 ,128,0,0,0) \
154 XCHAL_SA_REG(s,0,0,2,0, wra3,16,16,16,0x1013, wra,3 ,128,0,0,0) \
155 XCHAL_SA_REG(s,0,0,2,0, wra4,16,16,16,0x1014, wra,4 ,128,0,0,0) \
156 XCHAL_SA_REG(s,0,0,2,0, wra5,16,16,16,0x1015, wra,5 ,128,0,0,0) \
157 XCHAL_SA_REG(s,0,0,2,0, wra6,16,16,16,0x1016, wra,6 ,128,0,0,0) \
158 XCHAL_SA_REG(s,0,0,2,0, wra7,16,16,16,0x1017, wra,7 ,128,0,0,0) \
159 XCHAL_SA_REG(s,0,0,2,0, wra8,16,16,16,0x1018, wra,8 ,128,0,0,0) \
160 XCHAL_SA_REG(s,0,0,2,0, wra9,16,16,16,0x1019, wra,9 ,128,0,0,0) \
161 XCHAL_SA_REG(s,0,0,2,0, wra10,16,16,16,0x101A, wra,10 ,128,0,0,0) \
162 XCHAL_SA_REG(s,0,0,2,0, wra11,16,16,16,0x101B, wra,11 ,128,0,0,0) \
163 XCHAL_SA_REG(s,0,0,2,0, wra12,16,16,16,0x101C, wra,12 ,128,0,0,0) \
164 XCHAL_SA_REG(s,0,0,2,0, wra13,16,16,16,0x101D, wra,13 ,128,0,0,0) \
165 XCHAL_SA_REG(s,0,0,2,0, wra14,16,16,16,0x101E, wra,14 ,128,0,0,0) \
166 XCHAL_SA_REG(s,0,0,2,0, wra15,16,16,16,0x101F, wra,15 ,128,0,0,0) \
167 XCHAL_SA_REG(s,0,0,2,0, wrb0,16,16,16,0x1020, wrb,0 ,128,0,0,0) \
168 XCHAL_SA_REG(s,0,0,2,0, wrb1,16,16,16,0x1021, wrb,1 ,128,0,0,0) \
169 XCHAL_SA_REG(s,0,0,2,0, wrb2,16,16,16,0x1022, wrb,2 ,128,0,0,0) \
170 XCHAL_SA_REG(s,0,0,2,0, wrb3,16,16,16,0x1023, wrb,3 ,128,0,0,0) \
171 XCHAL_SA_REG(s,0,0,2,0, wrb4,16,16,16,0x1024, wrb,4 ,128,0,0,0) \
172 XCHAL_SA_REG(s,0,0,2,0, wrb5,16,16,16,0x1025, wrb,5 ,128,0,0,0) \
173 XCHAL_SA_REG(s,0,0,2,0, wrb6,16,16,16,0x1026, wrb,6 ,128,0,0,0) \
174 XCHAL_SA_REG(s,0,0,2,0, wrb7,16,16,16,0x1027, wrb,7 ,128,0,0,0) \
175 XCHAL_SA_REG(s,0,0,2,0, wrb8,16,16,16,0x1028, wrb,8 ,128,0,0,0) \
176 XCHAL_SA_REG(s,0,0,2,0, wrb9,16,16,16,0x1029, wrb,9 ,128,0,0,0) \
177 XCHAL_SA_REG(s,0,0,2,0, wrb10,16,16,16,0x102A, wrb,10 ,128,0,0,0) \
178 XCHAL_SA_REG(s,0,0,2,0, wrb11,16,16,16,0x102B, wrb,11 ,128,0,0,0) \
179 XCHAL_SA_REG(s,0,0,2,0, wrb12,16,16,16,0x102C, wrb,12 ,128,0,0,0) \
180 XCHAL_SA_REG(s,0,0,2,0, wrb13,16,16,16,0x102D, wrb,13 ,128,0,0,0) \
181 XCHAL_SA_REG(s,0,0,2,0, wrb14,16,16,16,0x102E, wrb,14 ,128,0,0,0) \
182 XCHAL_SA_REG(s,0,0,2,0, wrb15,16,16,16,0x102F, wrb,15 ,128,0,0,0)
184 #define XCHAL_CP7_SA_NUM 0
185 #define XCHAL_CP7_SA_LIST(s) /* empty */
187 /* Byte length of instruction from its first nibble (op0 field), per FLIX. */
188 #define XCHAL_OP0_FORMAT_LENGTHS 3,3,3,3,3,3,3,3,2,2,2,2,2,2,8,8
190 #endif /*_XTENSA_CORE_TIE_H*/