Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
4 */
5
6#ifndef _ASM_ARC_ARCREGS_H
7#define _ASM_ARC_ARCREGS_H
8
9/* Build Configuration Registers */
10#define ARC_REG_AUX_DCCM 0x18 /* DCCM Base Addr ARCv2 */
11#define ARC_REG_ERP_CTRL 0x3F /* ARCv2 Error protection control */
12#define ARC_REG_DCCM_BASE_BUILD 0x61 /* DCCM Base Addr ARCompact */
13#define ARC_REG_CRC_BCR 0x62
14#define ARC_REG_VECBASE_BCR 0x68
15#define ARC_REG_PERIBASE_BCR 0x69
16#define ARC_REG_FP_BCR 0x6B /* ARCompact: Single-Precision FPU */
17#define ARC_REG_DPFP_BCR 0x6C /* ARCompact: Dbl Precision FPU */
18#define ARC_REG_ERP_BUILD 0xc7 /* ARCv2 Error protection Build: ECC/Parity */
19#define ARC_REG_FP_V2_BCR 0xc8 /* ARCv2 FPU */
20#define ARC_REG_SLC_BCR 0xce
21#define ARC_REG_DCCM_BUILD 0x74 /* DCCM size (common) */
22#define ARC_REG_AP_BCR 0x76
23#define ARC_REG_ICCM_BUILD 0x78 /* ICCM size (common) */
24#define ARC_REG_XY_MEM_BCR 0x79
25#define ARC_REG_MAC_BCR 0x7a
26#define ARC_REG_MPY_BCR 0x7b
27#define ARC_REG_SWAP_BCR 0x7c
28#define ARC_REG_NORM_BCR 0x7d
29#define ARC_REG_MIXMAX_BCR 0x7e
30#define ARC_REG_BARREL_BCR 0x7f
31#define ARC_REG_D_UNCACH_BCR 0x6A
32#define ARC_REG_BPU_BCR 0xc0
33#define ARC_REG_ISA_CFG_BCR 0xc1
34#define ARC_REG_LPB_BUILD 0xE9 /* ARCv2 Loop Buffer Build */
35#define ARC_REG_RTT_BCR 0xF2
36#define ARC_REG_IRQ_BCR 0xF3
37#define ARC_REG_MICRO_ARCH_BCR 0xF9 /* ARCv2 Product revision */
38#define ARC_REG_SMART_BCR 0xFF
39#define ARC_REG_CLUSTER_BCR 0xcf
40#define ARC_REG_AUX_ICCM 0x208 /* ICCM Base Addr (ARCv2) */
41#define ARC_REG_LPB_CTRL 0x488 /* ARCv2 Loop Buffer control */
42#define ARC_REG_FPU_CTRL 0x300
43#define ARC_REG_FPU_STATUS 0x301
44
45/* Common for ARCompact and ARCv2 status register */
46#define ARC_REG_STATUS32 0x0A
47
48/* status32 Bits Positions */
49#define STATUS_AE_BIT 5 /* Exception active */
50#define STATUS_DE_BIT 6 /* PC is in delay slot */
51#define STATUS_U_BIT 7 /* User/Kernel mode */
52#define STATUS_Z_BIT 11
53#define STATUS_L_BIT 12 /* Loop inhibit */
54
55/* These masks correspond to the status word(STATUS_32) bits */
56#define STATUS_AE_MASK (1<<STATUS_AE_BIT)
57#define STATUS_DE_MASK (1<<STATUS_DE_BIT)
58#define STATUS_U_MASK (1<<STATUS_U_BIT)
59#define STATUS_Z_MASK (1<<STATUS_Z_BIT)
60#define STATUS_L_MASK (1<<STATUS_L_BIT)
61
62/*
63 * ECR: Exception Cause Reg bits-n-pieces
64 * [23:16] = Exception Vector
65 * [15: 8] = Exception Cause Code
66 * [ 7: 0] = Exception Parameters (for certain types only)
67 */
68#ifdef CONFIG_ISA_ARCOMPACT
69#define ECR_V_MEM_ERR 0x01
70#define ECR_V_INSN_ERR 0x02
71#define ECR_V_MACH_CHK 0x20
72#define ECR_V_ITLB_MISS 0x21
73#define ECR_V_DTLB_MISS 0x22
74#define ECR_V_PROTV 0x23
75#define ECR_V_TRAP 0x25
76#else
77#define ECR_V_MEM_ERR 0x01
78#define ECR_V_INSN_ERR 0x02
79#define ECR_V_MACH_CHK 0x03
80#define ECR_V_ITLB_MISS 0x04
81#define ECR_V_DTLB_MISS 0x05
82#define ECR_V_PROTV 0x06
83#define ECR_V_TRAP 0x09
84#define ECR_V_MISALIGN 0x0d
85#endif
86
87/* DTLB Miss and Protection Violation Cause Codes */
88
89#define ECR_C_PROTV_INST_FETCH 0x00
90#define ECR_C_PROTV_LOAD 0x01
91#define ECR_C_PROTV_STORE 0x02
92#define ECR_C_PROTV_XCHG 0x03
93#define ECR_C_PROTV_MISALIG_DATA 0x04
94
95#define ECR_C_BIT_PROTV_MISALIG_DATA 10
96
97/* Machine Check Cause Code Values */
98#define ECR_C_MCHK_DUP_TLB 0x01
99
100/* DTLB Miss Exception Cause Code Values */
101#define ECR_C_BIT_DTLB_LD_MISS 8
102#define ECR_C_BIT_DTLB_ST_MISS 9
103
104/* Auxiliary registers */
105#define AUX_IDENTITY 4
106#define AUX_EXEC_CTRL 8
107#define AUX_INTR_VEC_BASE 0x25
108#define AUX_VOL 0x5e
109
110/*
111 * Floating Pt Registers
112 * Status regs are read-only (build-time) so need not be saved/restored
113 */
114#define ARC_AUX_FP_STAT 0x300
115#define ARC_AUX_DPFP_1L 0x301
116#define ARC_AUX_DPFP_1H 0x302
117#define ARC_AUX_DPFP_2L 0x303
118#define ARC_AUX_DPFP_2H 0x304
119#define ARC_AUX_DPFP_STAT 0x305
120
121/*
122 * DSP-related registers
123 * Registers names must correspond to dsp_callee_regs structure fields names
124 * for automatic offset calculation in DSP_AUX_SAVE_RESTORE macros.
125 */
126#define ARC_AUX_DSP_BUILD 0x7A
127#define ARC_AUX_ACC0_LO 0x580
128#define ARC_AUX_ACC0_GLO 0x581
129#define ARC_AUX_ACC0_HI 0x582
130#define ARC_AUX_ACC0_GHI 0x583
131#define ARC_AUX_DSP_BFLY0 0x598
132#define ARC_AUX_DSP_CTRL 0x59F
133#define ARC_AUX_DSP_FFT_CTRL 0x59E
134
135#define ARC_AUX_AGU_BUILD 0xCC
136#define ARC_AUX_AGU_AP0 0x5C0
137#define ARC_AUX_AGU_AP1 0x5C1
138#define ARC_AUX_AGU_AP2 0x5C2
139#define ARC_AUX_AGU_AP3 0x5C3
140#define ARC_AUX_AGU_OS0 0x5D0
141#define ARC_AUX_AGU_OS1 0x5D1
142#define ARC_AUX_AGU_MOD0 0x5E0
143#define ARC_AUX_AGU_MOD1 0x5E1
144#define ARC_AUX_AGU_MOD2 0x5E2
145#define ARC_AUX_AGU_MOD3 0x5E3
146
147#ifndef __ASSEMBLER__
148
149#include <soc/arc/arc_aux.h>
150
151/* Helpers */
152#define TO_KB(bytes) ((bytes) >> 10)
153#define TO_MB(bytes) (TO_KB(bytes) >> 10)
154
155/*
156 ***************************************************************
157 * Build Configuration Registers, with encoded hardware config
158 */
159struct bcr_identity {
160#ifdef CONFIG_CPU_BIG_ENDIAN
161 unsigned int chip_id:16, cpu_id:8, family:8;
162#else
163 unsigned int family:8, cpu_id:8, chip_id:16;
164#endif
165};
166
167struct bcr_isa_arcv2 {
168#ifdef CONFIG_CPU_BIG_ENDIAN
169 unsigned int div_rem:4, pad2:4, ldd:1, unalign:1, atomic:1, be:1,
170 pad1:12, ver:8;
171#else
172 unsigned int ver:8, pad1:12, be:1, atomic:1, unalign:1,
173 ldd:1, pad2:4, div_rem:4;
174#endif
175};
176
177struct bcr_uarch_build {
178#ifdef CONFIG_CPU_BIG_ENDIAN
179 unsigned int pad:8, prod:8, maj:8, min:8;
180#else
181 unsigned int min:8, maj:8, prod:8, pad:8;
182#endif
183};
184
185struct bcr_mmu_3 {
186#ifdef CONFIG_CPU_BIG_ENDIAN
187 unsigned int ver:8, ways:4, sets:4, res:3, sasid:1, pg_sz:4,
188 u_itlb:4, u_dtlb:4;
189#else
190 unsigned int u_dtlb:4, u_itlb:4, pg_sz:4, sasid:1, res:3, sets:4,
191 ways:4, ver:8;
192#endif
193};
194
195struct bcr_mmu_4 {
196#ifdef CONFIG_CPU_BIG_ENDIAN
197 unsigned int ver:8, sasid:1, sz1:4, sz0:4, res:2, pae:1,
198 n_ways:2, n_entry:2, n_super:2, u_itlb:3, u_dtlb:3;
199#else
200 /* DTLB ITLB JES JE JA */
201 unsigned int u_dtlb:3, u_itlb:3, n_super:2, n_entry:2, n_ways:2,
202 pae:1, res:2, sz0:4, sz1:4, sasid:1, ver:8;
203#endif
204};
205
206struct bcr_cache {
207#ifdef CONFIG_CPU_BIG_ENDIAN
208 unsigned int pad:12, line_len:4, sz:4, config:4, ver:8;
209#else
210 unsigned int ver:8, config:4, sz:4, line_len:4, pad:12;
211#endif
212};
213
214struct bcr_slc_cfg {
215#ifdef CONFIG_CPU_BIG_ENDIAN
216 unsigned int pad:24, way:2, lsz:2, sz:4;
217#else
218 unsigned int sz:4, lsz:2, way:2, pad:24;
219#endif
220};
221
222struct bcr_clust_cfg {
223#ifdef CONFIG_CPU_BIG_ENDIAN
224 unsigned int pad:7, c:1, num_entries:8, num_cores:8, ver:8;
225#else
226 unsigned int ver:8, num_cores:8, num_entries:8, c:1, pad:7;
227#endif
228};
229
230struct bcr_volatile {
231#ifdef CONFIG_CPU_BIG_ENDIAN
232 unsigned int start:4, limit:4, pad:22, order:1, disable:1;
233#else
234 unsigned int disable:1, order:1, pad:22, limit:4, start:4;
235#endif
236};
237
238struct bcr_mpy {
239#ifdef CONFIG_CPU_BIG_ENDIAN
240 unsigned int pad:8, x1616:8, dsp:4, cycles:2, type:2, ver:8;
241#else
242 unsigned int ver:8, type:2, cycles:2, dsp:4, x1616:8, pad:8;
243#endif
244};
245
246struct bcr_iccm_arcompact {
247#ifdef CONFIG_CPU_BIG_ENDIAN
248 unsigned int base:16, pad:5, sz:3, ver:8;
249#else
250 unsigned int ver:8, sz:3, pad:5, base:16;
251#endif
252};
253
254struct bcr_iccm_arcv2 {
255#ifdef CONFIG_CPU_BIG_ENDIAN
256 unsigned int pad:8, sz11:4, sz01:4, sz10:4, sz00:4, ver:8;
257#else
258 unsigned int ver:8, sz00:4, sz10:4, sz01:4, sz11:4, pad:8;
259#endif
260};
261
262struct bcr_dccm_arcompact {
263#ifdef CONFIG_CPU_BIG_ENDIAN
264 unsigned int res:21, sz:3, ver:8;
265#else
266 unsigned int ver:8, sz:3, res:21;
267#endif
268};
269
270struct bcr_dccm_arcv2 {
271#ifdef CONFIG_CPU_BIG_ENDIAN
272 unsigned int pad2:12, cyc:3, pad1:1, sz1:4, sz0:4, ver:8;
273#else
274 unsigned int ver:8, sz0:4, sz1:4, pad1:1, cyc:3, pad2:12;
275#endif
276};
277
278/* ARCompact: Both SP and DP FPU BCRs have same format */
279struct bcr_fp_arcompact {
280#ifdef CONFIG_CPU_BIG_ENDIAN
281 unsigned int fast:1, ver:8;
282#else
283 unsigned int ver:8, fast:1;
284#endif
285};
286
287struct bcr_fp_arcv2 {
288#ifdef CONFIG_CPU_BIG_ENDIAN
289 unsigned int pad2:15, dp:1, pad1:7, sp:1, ver:8;
290#else
291 unsigned int ver:8, sp:1, pad1:7, dp:1, pad2:15;
292#endif
293};
294
295struct bcr_actionpoint {
296#ifdef CONFIG_CPU_BIG_ENDIAN
297 unsigned int pad:21, min:1, num:2, ver:8;
298#else
299 unsigned int ver:8, num:2, min:1, pad:21;
300#endif
301};
302
303#include <soc/arc/timers.h>
304
305struct bcr_bpu_arcompact {
306#ifdef CONFIG_CPU_BIG_ENDIAN
307 unsigned int pad2:19, fam:1, pad:2, ent:2, ver:8;
308#else
309 unsigned int ver:8, ent:2, pad:2, fam:1, pad2:19;
310#endif
311};
312
313struct bcr_bpu_arcv2 {
314#ifdef CONFIG_CPU_BIG_ENDIAN
315 unsigned int pad:6, fbe:2, tqe:2, ts:4, ft:1, rse:2, pte:3, bce:3, ver:8;
316#else
317 unsigned int ver:8, bce:3, pte:3, rse:2, ft:1, ts:4, tqe:2, fbe:2, pad:6;
318#endif
319};
320
321/* Error Protection Build: ECC/Parity */
322struct bcr_erp {
323#ifdef CONFIG_CPU_BIG_ENDIAN
324 unsigned int pad3:5, mmu:3, pad2:4, ic:3, dc:3, pad1:6, ver:8;
325#else
326 unsigned int ver:8, pad1:6, dc:3, ic:3, pad2:4, mmu:3, pad3:5;
327#endif
328};
329
330/* Error Protection Control */
331struct ctl_erp {
332#ifdef CONFIG_CPU_BIG_ENDIAN
333 unsigned int pad2:27, mpd:1, pad1:2, dpd:1, dpi:1;
334#else
335 unsigned int dpi:1, dpd:1, pad1:2, mpd:1, pad2:27;
336#endif
337};
338
339struct bcr_lpb {
340#ifdef CONFIG_CPU_BIG_ENDIAN
341 unsigned int pad:16, entries:8, ver:8;
342#else
343 unsigned int ver:8, entries:8, pad:16;
344#endif
345};
346
347struct bcr_generic {
348#ifdef CONFIG_CPU_BIG_ENDIAN
349 unsigned int info:24, ver:8;
350#else
351 unsigned int ver:8, info:24;
352#endif
353};
354
355static inline int is_isa_arcv2(void)
356{
357 return IS_ENABLED(CONFIG_ISA_ARCV2);
358}
359
360static inline int is_isa_arcompact(void)
361{
362 return IS_ENABLED(CONFIG_ISA_ARCOMPACT);
363}
364
365#endif /* __ASEMBLY__ */
366
367#endif /* _ASM_ARC_ARCREGS_H */