ARC: boot log: cut down on verbosity
[linux-2.6-block.git] / arch / arc / include / asm / arcregs.h
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1/*
2 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#ifndef _ASM_ARC_ARCREGS_H
10#define _ASM_ARC_ARCREGS_H
11
bacdf480 12/* Build Configuration Registers */
a150b085 13#define ARC_REG_AUX_DCCM 0x18 /* DCCM Base Addr ARCv2 */
f3156851 14#define ARC_REG_ERP_CTRL 0x3F /* ARCv2 Error protection control */
a150b085 15#define ARC_REG_DCCM_BASE_BUILD 0x61 /* DCCM Base Addr ARCompact */
af617428 16#define ARC_REG_CRC_BCR 0x62
bacdf480 17#define ARC_REG_VECBASE_BCR 0x68
af617428 18#define ARC_REG_PERIBASE_BCR 0x69
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19#define ARC_REG_FP_BCR 0x6B /* ARCompact: Single-Precision FPU */
20#define ARC_REG_DPFP_BCR 0x6C /* ARCompact: Dbl Precision FPU */
f3156851 21#define ARC_REG_ERP_BUILD 0xc7 /* ARCv2 Error protection Build: ECC/Parity */
1f6ccfff 22#define ARC_REG_FP_V2_BCR 0xc8 /* ARCv2 FPU */
d1f317d8 23#define ARC_REG_SLC_BCR 0xce
a150b085 24#define ARC_REG_DCCM_BUILD 0x74 /* DCCM size (common) */
56372082 25#define ARC_REG_AP_BCR 0x76
a150b085 26#define ARC_REG_ICCM_BUILD 0x78 /* ICCM size (common) */
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27#define ARC_REG_XY_MEM_BCR 0x79
28#define ARC_REG_MAC_BCR 0x7a
29#define ARC_REG_MUL_BCR 0x7b
30#define ARC_REG_SWAP_BCR 0x7c
31#define ARC_REG_NORM_BCR 0x7d
32#define ARC_REG_MIXMAX_BCR 0x7e
33#define ARC_REG_BARREL_BCR 0x7f
34#define ARC_REG_D_UNCACH_BCR 0x6A
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35#define ARC_REG_BPU_BCR 0xc0
36#define ARC_REG_ISA_CFG_BCR 0xc1
f3156851 37#define ARC_REG_LPB_BUILD 0xE9 /* ARCv2 Loop Buffer Build */
a44ec8bd 38#define ARC_REG_RTT_BCR 0xF2
820970a5 39#define ARC_REG_IRQ_BCR 0xF3
f3156851 40#define ARC_REG_MICRO_ARCH_BCR 0xF9 /* ARCv2 Product revision */
56372082 41#define ARC_REG_SMART_BCR 0xFF
f2b0b25a 42#define ARC_REG_CLUSTER_BCR 0xcf
a150b085 43#define ARC_REG_AUX_ICCM 0x208 /* ICCM Base Addr (ARCv2) */
f3156851 44#define ARC_REG_LPB_CTRL 0x488 /* ARCv2 Loop Buffer control */
bacdf480 45
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46/* Common for ARCompact and ARCv2 status register */
47#define ARC_REG_STATUS32 0x0A
48
ac4c244d 49/* status32 Bits Positions */
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50#define STATUS_AE_BIT 5 /* Exception active */
51#define STATUS_DE_BIT 6 /* PC is in delay slot */
52#define STATUS_U_BIT 7 /* User/Kernel mode */
e6e335bf 53#define STATUS_Z_BIT 11
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54#define STATUS_L_BIT 12 /* Loop inhibit */
55
56/* These masks correspond to the status word(STATUS_32) bits */
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57#define STATUS_AE_MASK (1<<STATUS_AE_BIT)
58#define STATUS_DE_MASK (1<<STATUS_DE_BIT)
59#define STATUS_U_MASK (1<<STATUS_U_BIT)
e6e335bf 60#define STATUS_Z_MASK (1<<STATUS_Z_BIT)
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61#define STATUS_L_MASK (1<<STATUS_L_BIT)
62
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63/*
64 * ECR: Exception Cause Reg bits-n-pieces
65 * [23:16] = Exception Vector
66 * [15: 8] = Exception Cause Code
67 * [ 7: 0] = Exception Parameters (for certain types only)
68 */
1f6ccfff 69#ifdef CONFIG_ISA_ARCOMPACT
dc9e234f 70#define ECR_V_MEM_ERR 0x01
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71#define ECR_V_INSN_ERR 0x02
72#define ECR_V_MACH_CHK 0x20
73#define ECR_V_ITLB_MISS 0x21
74#define ECR_V_DTLB_MISS 0x22
75#define ECR_V_PROTV 0x23
502a0c77 76#define ECR_V_TRAP 0x25
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77#else
78#define ECR_V_MEM_ERR 0x01
79#define ECR_V_INSN_ERR 0x02
80#define ECR_V_MACH_CHK 0x03
81#define ECR_V_ITLB_MISS 0x04
82#define ECR_V_DTLB_MISS 0x05
83#define ECR_V_PROTV 0x06
84#define ECR_V_TRAP 0x09
76551468 85#define ECR_V_MISALIGN 0x0d
1f6ccfff 86#endif
cc562d2e 87
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88/* DTLB Miss and Protection Violation Cause Codes */
89
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90#define ECR_C_PROTV_INST_FETCH 0x00
91#define ECR_C_PROTV_LOAD 0x01
92#define ECR_C_PROTV_STORE 0x02
93#define ECR_C_PROTV_XCHG 0x03
94#define ECR_C_PROTV_MISALIG_DATA 0x04
95
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96#define ECR_C_BIT_PROTV_MISALIG_DATA 10
97
98/* Machine Check Cause Code Values */
99#define ECR_C_MCHK_DUP_TLB 0x01
100
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101/* DTLB Miss Exception Cause Code Values */
102#define ECR_C_BIT_DTLB_LD_MISS 8
103#define ECR_C_BIT_DTLB_ST_MISS 9
104
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105/* Auxiliary registers */
106#define AUX_IDENTITY 4
dea82520 107#define AUX_EXEC_CTRL 8
ac4c244d 108#define AUX_INTR_VEC_BASE 0x25
26c01c49 109#define AUX_VOL 0x5e
f1f3347d 110
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111/*
112 * Floating Pt Registers
113 * Status regs are read-only (build-time) so need not be saved/restored
114 */
115#define ARC_AUX_FP_STAT 0x300
116#define ARC_AUX_DPFP_1L 0x301
117#define ARC_AUX_DPFP_1H 0x302
118#define ARC_AUX_DPFP_2L 0x303
119#define ARC_AUX_DPFP_2H 0x304
120#define ARC_AUX_DPFP_STAT 0x305
121
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122#ifndef __ASSEMBLY__
123
c33a605d 124#include <soc/arc/aux.h>
95d6976d 125
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126/* Helpers */
127#define TO_KB(bytes) ((bytes) >> 10)
128#define TO_MB(bytes) (TO_KB(bytes) >> 10)
129#define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10))
130#define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10)
95d6976d 131
bf90e1ea 132
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133/*
134 ***************************************************************
135 * Build Configuration Registers, with encoded hardware config
136 */
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137struct bcr_identity {
138#ifdef CONFIG_CPU_BIG_ENDIAN
139 unsigned int chip_id:16, cpu_id:8, family:8;
140#else
141 unsigned int family:8, cpu_id:8, chip_id:16;
142#endif
143};
95d6976d 144
010a8c98 145struct bcr_isa_arcv2 {
af617428 146#ifdef CONFIG_CPU_BIG_ENDIAN
1f6ccfff 147 unsigned int div_rem:4, pad2:4, ldd:1, unalign:1, atomic:1, be:1,
010a8c98 148 pad1:12, ver:8;
af617428 149#else
010a8c98 150 unsigned int ver:8, pad1:12, be:1, atomic:1, unalign:1,
1f6ccfff 151 ldd:1, pad2:4, div_rem:4;
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152#endif
153};
154
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155struct bcr_uarch_build_arcv2 {
156#ifdef CONFIG_CPU_BIG_ENDIAN
157 unsigned int pad:8, prod:8, maj:8, min:8;
158#else
159 unsigned int min:8, maj:8, prod:8, pad:8;
160#endif
161};
162
56372082 163struct bcr_mpy {
af617428 164#ifdef CONFIG_CPU_BIG_ENDIAN
56372082 165 unsigned int pad:8, x1616:8, dsp:4, cycles:2, type:2, ver:8;
af617428 166#else
56372082 167 unsigned int ver:8, type:2, cycles:2, dsp:4, x1616:8, pad:8;
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168#endif
169};
170
a150b085 171struct bcr_iccm_arcompact {
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172#ifdef CONFIG_CPU_BIG_ENDIAN
173 unsigned int base:16, pad:5, sz:3, ver:8;
174#else
175 unsigned int ver:8, sz:3, pad:5, base:16;
176#endif
177};
178
a150b085 179struct bcr_iccm_arcv2 {
af617428 180#ifdef CONFIG_CPU_BIG_ENDIAN
a150b085 181 unsigned int pad:8, sz11:4, sz01:4, sz10:4, sz00:4, ver:8;
af617428 182#else
a150b085 183 unsigned int ver:8, sz00:4, sz10:4, sz01:4, sz11:4, pad:8;
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184#endif
185};
186
a150b085 187struct bcr_dccm_arcompact {
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188#ifdef CONFIG_CPU_BIG_ENDIAN
189 unsigned int res:21, sz:3, ver:8;
190#else
191 unsigned int ver:8, sz:3, res:21;
192#endif
193};
194
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195struct bcr_dccm_arcv2 {
196#ifdef CONFIG_CPU_BIG_ENDIAN
197 unsigned int pad2:12, cyc:3, pad1:1, sz1:4, sz0:4, ver:8;
198#else
199 unsigned int ver:8, sz0:4, sz1:4, pad1:1, cyc:3, pad2:12;
200#endif
201};
202
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203/* ARCompact: Both SP and DP FPU BCRs have same format */
204struct bcr_fp_arcompact {
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205#ifdef CONFIG_CPU_BIG_ENDIAN
206 unsigned int fast:1, ver:8;
207#else
208 unsigned int ver:8, fast:1;
209#endif
210};
211
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212struct bcr_fp_arcv2 {
213#ifdef CONFIG_CPU_BIG_ENDIAN
214 unsigned int pad2:15, dp:1, pad1:7, sp:1, ver:8;
215#else
216 unsigned int ver:8, sp:1, pad1:7, dp:1, pad2:15;
217#endif
218};
219
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220struct bcr_actionpoint {
221#ifdef CONFIG_CPU_BIG_ENDIAN
222 unsigned int pad:21, min:1, num:2, ver:8;
223#else
224 unsigned int ver:8, num:2, min:1, pad:21;
225#endif
226};
227
b26c2e38 228#include <soc/arc/timers.h>
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229
230struct bcr_bpu_arcompact {
231#ifdef CONFIG_CPU_BIG_ENDIAN
232 unsigned int pad2:19, fam:1, pad:2, ent:2, ver:8;
233#else
234 unsigned int ver:8, ent:2, pad:2, fam:1, pad2:19;
235#endif
236};
237
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238struct bcr_bpu_arcv2 {
239#ifdef CONFIG_CPU_BIG_ENDIAN
240 unsigned int pad:6, fbe:2, tqe:2, ts:4, ft:1, rse:2, pte:3, bce:3, ver:8;
241#else
242 unsigned int ver:8, bce:3, pte:3, rse:2, ft:1, ts:4, tqe:2, fbe:2, pad:6;
243#endif
244};
245
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246/* Error Protection Build: ECC/Parity */
247struct bcr_erp {
248#ifdef CONFIG_CPU_BIG_ENDIAN
249 unsigned int pad3:5, mmu:3, pad2:4, ic:3, dc:3, pad1:6, ver:8;
250#else
251 unsigned int ver:8, pad1:6, dc:3, ic:3, pad2:4, mmu:3, pad3:5;
252#endif
253};
254
255/* Error Protection Control */
256struct ctl_erp {
257#ifdef CONFIG_CPU_BIG_ENDIAN
258 unsigned int pad2:27, mpd:1, pad1:2, dpd:1, dpi:1;
259#else
260 unsigned int dpi:1, dpd:1, pad1:2, mpd:1, pad2:27;
261#endif
262};
263
264struct bcr_lpb {
265#ifdef CONFIG_CPU_BIG_ENDIAN
266 unsigned int pad:16, entries:8, ver:8;
267#else
268 unsigned int ver:8, entries:8, pad:16;
269#endif
270};
271
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272struct bcr_generic {
273#ifdef CONFIG_CPU_BIG_ENDIAN
a150b085 274 unsigned int info:24, ver:8;
56372082 275#else
a150b085 276 unsigned int ver:8, info:24;
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277#endif
278};
279
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280/*
281 *******************************************************************
282 * Generic structures to hold build configuration used at runtime
283 */
284
cc562d2e 285struct cpuinfo_arc_mmu {
d0890ea5 286 unsigned int ver:4, pg_sz_k:8, s_pg_sz_m:8, pad:10, sasid:1, pae:1;
b598e17f 287 unsigned int sets:12, ways:4, u_dtlb:8, u_itlb:8;
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288};
289
95d6976d 290struct cpuinfo_arc_cache {
f64915be 291 unsigned int sz_k:14, line_len:8, assoc:4, alias:1, vipt:1, pad:4;
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292};
293
56372082 294struct cpuinfo_arc_bpu {
97e98132 295 unsigned int ver, full, num_cache, num_pred, ret_stk;
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296};
297
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298struct cpuinfo_arc_ccm {
299 unsigned int base_addr, sz;
300};
301
95d6976d 302struct cpuinfo_arc {
d1f317d8 303 struct cpuinfo_arc_cache icache, dcache, slc;
cc562d2e 304 struct cpuinfo_arc_mmu mmu;
56372082 305 struct cpuinfo_arc_bpu bpu;
af617428 306 struct bcr_identity core;
010a8c98 307 struct bcr_isa_arcv2 isa;
00a4ae65 308 const char *release, *name;
af617428 309 unsigned int vec_base;
af617428 310 struct cpuinfo_arc_ccm iccm, dccm;
56372082 311 struct {
a024fd9b 312 unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, swape:1, pad1:2,
f3156851 313 fpu_sp:1, fpu_dp:1, dual:1, dual_enb:1, pad2:4,
7dd380c3 314 ap_num:4, ap_full:1, smart:1, rtt:1, pad3:1,
b89bd1f4 315 timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4;
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316 } extn;
317 struct bcr_mpy extn_mpy;
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318};
319
320extern struct cpuinfo_arc cpuinfo_arc700[];
321
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322static inline int is_isa_arcv2(void)
323{
324 return IS_ENABLED(CONFIG_ISA_ARCV2);
325}
326
327static inline int is_isa_arcompact(void)
328{
329 return IS_ENABLED(CONFIG_ISA_ARCOMPACT);
330}
331
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332#endif /* __ASEMBLY__ */
333
ac4c244d 334#endif /* _ASM_ARC_ARCREGS_H */