xref: /linux/arch/loongarch/include/asm/loongarch.h (revision 42874e4eb35bdfc54f8514685e50434098ba4f6c)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
4  */
5 #ifndef _ASM_LOONGARCH_H
6 #define _ASM_LOONGARCH_H
7 
8 #include <linux/bits.h>
9 #include <linux/linkage.h>
10 #include <linux/types.h>
11 
12 #ifndef __ASSEMBLY__
13 #include <larchintrin.h>
14 
15 /* CPUCFG */
16 #define read_cpucfg(reg) __cpucfg(reg)
17 
18 #endif /* !__ASSEMBLY__ */
19 
20 #ifdef __ASSEMBLY__
21 
22 /* LoongArch Registers */
23 #define REG_ZERO	0x0
24 #define REG_RA		0x1
25 #define REG_TP		0x2
26 #define REG_SP		0x3
27 #define REG_A0		0x4 /* Reused as V0 for return value */
28 #define REG_A1		0x5 /* Reused as V1 for return value */
29 #define REG_A2		0x6
30 #define REG_A3		0x7
31 #define REG_A4		0x8
32 #define REG_A5		0x9
33 #define REG_A6		0xa
34 #define REG_A7		0xb
35 #define REG_T0		0xc
36 #define REG_T1		0xd
37 #define REG_T2		0xe
38 #define REG_T3		0xf
39 #define REG_T4		0x10
40 #define REG_T5		0x11
41 #define REG_T6		0x12
42 #define REG_T7		0x13
43 #define REG_T8		0x14
44 #define REG_U0		0x15 /* Kernel uses it as percpu base */
45 #define REG_FP		0x16
46 #define REG_S0		0x17
47 #define REG_S1		0x18
48 #define REG_S2		0x19
49 #define REG_S3		0x1a
50 #define REG_S4		0x1b
51 #define REG_S5		0x1c
52 #define REG_S6		0x1d
53 #define REG_S7		0x1e
54 #define REG_S8		0x1f
55 
56 #endif /* __ASSEMBLY__ */
57 
58 /* Bit fields for CPUCFG registers */
59 #define LOONGARCH_CPUCFG0		0x0
60 #define  CPUCFG0_PRID			GENMASK(31, 0)
61 
62 #define LOONGARCH_CPUCFG1		0x1
63 #define  CPUCFG1_ISGR32			BIT(0)
64 #define  CPUCFG1_ISGR64			BIT(1)
65 #define  CPUCFG1_PAGING			BIT(2)
66 #define  CPUCFG1_IOCSR			BIT(3)
67 #define  CPUCFG1_PABITS			GENMASK(11, 4)
68 #define  CPUCFG1_VABITS			GENMASK(19, 12)
69 #define  CPUCFG1_UAL			BIT(20)
70 #define  CPUCFG1_RI			BIT(21)
71 #define  CPUCFG1_EP			BIT(22)
72 #define  CPUCFG1_RPLV			BIT(23)
73 #define  CPUCFG1_HUGEPG			BIT(24)
74 #define  CPUCFG1_CRC32			BIT(25)
75 #define  CPUCFG1_MSGINT			BIT(26)
76 
77 #define LOONGARCH_CPUCFG2		0x2
78 #define  CPUCFG2_FP			BIT(0)
79 #define  CPUCFG2_FPSP			BIT(1)
80 #define  CPUCFG2_FPDP			BIT(2)
81 #define  CPUCFG2_FPVERS			GENMASK(5, 3)
82 #define  CPUCFG2_LSX			BIT(6)
83 #define  CPUCFG2_LASX			BIT(7)
84 #define  CPUCFG2_COMPLEX		BIT(8)
85 #define  CPUCFG2_CRYPTO			BIT(9)
86 #define  CPUCFG2_LVZP			BIT(10)
87 #define  CPUCFG2_LVZVER			GENMASK(13, 11)
88 #define  CPUCFG2_LLFTP			BIT(14)
89 #define  CPUCFG2_LLFTPREV		GENMASK(17, 15)
90 #define  CPUCFG2_X86BT			BIT(18)
91 #define  CPUCFG2_ARMBT			BIT(19)
92 #define  CPUCFG2_MIPSBT			BIT(20)
93 #define  CPUCFG2_LSPW			BIT(21)
94 #define  CPUCFG2_LAM			BIT(22)
95 #define  CPUCFG2_PTW			BIT(24)
96 
97 #define LOONGARCH_CPUCFG3		0x3
98 #define  CPUCFG3_CCDMA			BIT(0)
99 #define  CPUCFG3_SFB			BIT(1)
100 #define  CPUCFG3_UCACC			BIT(2)
101 #define  CPUCFG3_LLEXC			BIT(3)
102 #define  CPUCFG3_SCDLY			BIT(4)
103 #define  CPUCFG3_LLDBAR			BIT(5)
104 #define  CPUCFG3_ITLBT			BIT(6)
105 #define  CPUCFG3_ICACHET		BIT(7)
106 #define  CPUCFG3_SPW_LVL		GENMASK(10, 8)
107 #define  CPUCFG3_SPW_HG_HF		BIT(11)
108 #define  CPUCFG3_RVA			BIT(12)
109 #define  CPUCFG3_RVAMAX			GENMASK(16, 13)
110 
111 #define LOONGARCH_CPUCFG4		0x4
112 #define  CPUCFG4_CCFREQ			GENMASK(31, 0)
113 
114 #define LOONGARCH_CPUCFG5		0x5
115 #define  CPUCFG5_CCMUL			GENMASK(15, 0)
116 #define  CPUCFG5_CCDIV			GENMASK(31, 16)
117 
118 #define LOONGARCH_CPUCFG6		0x6
119 #define  CPUCFG6_PMP			BIT(0)
120 #define  CPUCFG6_PAMVER			GENMASK(3, 1)
121 #define  CPUCFG6_PMNUM			GENMASK(7, 4)
122 #define  CPUCFG6_PMBITS			GENMASK(13, 8)
123 #define  CPUCFG6_UPM			BIT(14)
124 
125 #define LOONGARCH_CPUCFG16		0x10
126 #define  CPUCFG16_L1_IUPRE		BIT(0)
127 #define  CPUCFG16_L1_IUUNIFY		BIT(1)
128 #define  CPUCFG16_L1_DPRE		BIT(2)
129 #define  CPUCFG16_L2_IUPRE		BIT(3)
130 #define  CPUCFG16_L2_IUUNIFY		BIT(4)
131 #define  CPUCFG16_L2_IUPRIV		BIT(5)
132 #define  CPUCFG16_L2_IUINCL		BIT(6)
133 #define  CPUCFG16_L2_DPRE		BIT(7)
134 #define  CPUCFG16_L2_DPRIV		BIT(8)
135 #define  CPUCFG16_L2_DINCL		BIT(9)
136 #define  CPUCFG16_L3_IUPRE		BIT(10)
137 #define  CPUCFG16_L3_IUUNIFY		BIT(11)
138 #define  CPUCFG16_L3_IUPRIV		BIT(12)
139 #define  CPUCFG16_L3_IUINCL		BIT(13)
140 #define  CPUCFG16_L3_DPRE		BIT(14)
141 #define  CPUCFG16_L3_DPRIV		BIT(15)
142 #define  CPUCFG16_L3_DINCL		BIT(16)
143 
144 #define LOONGARCH_CPUCFG17		0x11
145 #define LOONGARCH_CPUCFG18		0x12
146 #define LOONGARCH_CPUCFG19		0x13
147 #define LOONGARCH_CPUCFG20		0x14
148 #define  CPUCFG_CACHE_WAYS_M		GENMASK(15, 0)
149 #define  CPUCFG_CACHE_SETS_M		GENMASK(23, 16)
150 #define  CPUCFG_CACHE_LSIZE_M		GENMASK(30, 24)
151 #define  CPUCFG_CACHE_WAYS	 	0
152 #define  CPUCFG_CACHE_SETS		16
153 #define  CPUCFG_CACHE_LSIZE		24
154 
155 #define LOONGARCH_CPUCFG48		0x30
156 #define  CPUCFG48_MCSR_LCK		BIT(0)
157 #define  CPUCFG48_NAP_EN		BIT(1)
158 #define  CPUCFG48_VFPU_CG		BIT(2)
159 #define  CPUCFG48_RAM_CG		BIT(3)
160 
161 #ifndef __ASSEMBLY__
162 
163 /* CSR */
164 #define csr_read32(reg) __csrrd_w(reg)
165 #define csr_read64(reg) __csrrd_d(reg)
166 #define csr_write32(val, reg) __csrwr_w(val, reg)
167 #define csr_write64(val, reg) __csrwr_d(val, reg)
168 #define csr_xchg32(val, mask, reg) __csrxchg_w(val, mask, reg)
169 #define csr_xchg64(val, mask, reg) __csrxchg_d(val, mask, reg)
170 
171 /* IOCSR */
172 #define iocsr_read32(reg) __iocsrrd_w(reg)
173 #define iocsr_read64(reg) __iocsrrd_d(reg)
174 #define iocsr_write32(val, reg) __iocsrwr_w(val, reg)
175 #define iocsr_write64(val, reg) __iocsrwr_d(val, reg)
176 
177 #endif /* !__ASSEMBLY__ */
178 
179 /* CSR register number */
180 
181 /* Basic CSR registers */
182 #define LOONGARCH_CSR_CRMD		0x0	/* Current mode info */
183 #define  CSR_CRMD_WE_SHIFT		9
184 #define  CSR_CRMD_WE			(_ULCAST_(0x1) << CSR_CRMD_WE_SHIFT)
185 #define  CSR_CRMD_DACM_SHIFT		7
186 #define  CSR_CRMD_DACM_WIDTH		2
187 #define  CSR_CRMD_DACM			(_ULCAST_(0x3) << CSR_CRMD_DACM_SHIFT)
188 #define  CSR_CRMD_DACF_SHIFT		5
189 #define  CSR_CRMD_DACF_WIDTH		2
190 #define  CSR_CRMD_DACF			(_ULCAST_(0x3) << CSR_CRMD_DACF_SHIFT)
191 #define  CSR_CRMD_PG_SHIFT		4
192 #define  CSR_CRMD_PG			(_ULCAST_(0x1) << CSR_CRMD_PG_SHIFT)
193 #define  CSR_CRMD_DA_SHIFT		3
194 #define  CSR_CRMD_DA			(_ULCAST_(0x1) << CSR_CRMD_DA_SHIFT)
195 #define  CSR_CRMD_IE_SHIFT		2
196 #define  CSR_CRMD_IE			(_ULCAST_(0x1) << CSR_CRMD_IE_SHIFT)
197 #define  CSR_CRMD_PLV_SHIFT		0
198 #define  CSR_CRMD_PLV_WIDTH		2
199 #define  CSR_CRMD_PLV			(_ULCAST_(0x3) << CSR_CRMD_PLV_SHIFT)
200 
201 #define PLV_KERN			0
202 #define PLV_USER			3
203 #define PLV_MASK			0x3
204 
205 #define LOONGARCH_CSR_PRMD		0x1	/* Prev-exception mode info */
206 #define  CSR_PRMD_PWE_SHIFT		3
207 #define  CSR_PRMD_PWE			(_ULCAST_(0x1) << CSR_PRMD_PWE_SHIFT)
208 #define  CSR_PRMD_PIE_SHIFT		2
209 #define  CSR_PRMD_PIE			(_ULCAST_(0x1) << CSR_PRMD_PIE_SHIFT)
210 #define  CSR_PRMD_PPLV_SHIFT		0
211 #define  CSR_PRMD_PPLV_WIDTH		2
212 #define  CSR_PRMD_PPLV			(_ULCAST_(0x3) << CSR_PRMD_PPLV_SHIFT)
213 
214 #define LOONGARCH_CSR_EUEN		0x2	/* Extended unit enable */
215 #define  CSR_EUEN_LBTEN_SHIFT		3
216 #define  CSR_EUEN_LBTEN			(_ULCAST_(0x1) << CSR_EUEN_LBTEN_SHIFT)
217 #define  CSR_EUEN_LASXEN_SHIFT		2
218 #define  CSR_EUEN_LASXEN		(_ULCAST_(0x1) << CSR_EUEN_LASXEN_SHIFT)
219 #define  CSR_EUEN_LSXEN_SHIFT		1
220 #define  CSR_EUEN_LSXEN			(_ULCAST_(0x1) << CSR_EUEN_LSXEN_SHIFT)
221 #define  CSR_EUEN_FPEN_SHIFT		0
222 #define  CSR_EUEN_FPEN			(_ULCAST_(0x1) << CSR_EUEN_FPEN_SHIFT)
223 
224 #define LOONGARCH_CSR_MISC		0x3	/* Misc config */
225 
226 #define LOONGARCH_CSR_ECFG		0x4	/* Exception config */
227 #define  CSR_ECFG_VS_SHIFT		16
228 #define  CSR_ECFG_VS_WIDTH		3
229 #define  CSR_ECFG_VS_SHIFT_END		(CSR_ECFG_VS_SHIFT + CSR_ECFG_VS_WIDTH - 1)
230 #define  CSR_ECFG_VS			(_ULCAST_(0x7) << CSR_ECFG_VS_SHIFT)
231 #define  CSR_ECFG_IM_SHIFT		0
232 #define  CSR_ECFG_IM_WIDTH		14
233 #define  CSR_ECFG_IM			(_ULCAST_(0x3fff) << CSR_ECFG_IM_SHIFT)
234 
235 #define LOONGARCH_CSR_ESTAT		0x5	/* Exception status */
236 #define  CSR_ESTAT_ESUBCODE_SHIFT	22
237 #define  CSR_ESTAT_ESUBCODE_WIDTH	9
238 #define  CSR_ESTAT_ESUBCODE		(_ULCAST_(0x1ff) << CSR_ESTAT_ESUBCODE_SHIFT)
239 #define  CSR_ESTAT_EXC_SHIFT		16
240 #define  CSR_ESTAT_EXC_WIDTH		6
241 #define  CSR_ESTAT_EXC			(_ULCAST_(0x3f) << CSR_ESTAT_EXC_SHIFT)
242 #define  CSR_ESTAT_IS_SHIFT		0
243 #define  CSR_ESTAT_IS_WIDTH		14
244 #define  CSR_ESTAT_IS			(_ULCAST_(0x3fff) << CSR_ESTAT_IS_SHIFT)
245 
246 #define LOONGARCH_CSR_ERA		0x6	/* ERA */
247 
248 #define LOONGARCH_CSR_BADV		0x7	/* Bad virtual address */
249 
250 #define LOONGARCH_CSR_BADI		0x8	/* Bad instruction */
251 
252 #define LOONGARCH_CSR_EENTRY		0xc	/* Exception entry */
253 
254 /* TLB related CSR registers */
255 #define LOONGARCH_CSR_TLBIDX		0x10	/* TLB Index, EHINV, PageSize, NP */
256 #define  CSR_TLBIDX_EHINV_SHIFT		31
257 #define  CSR_TLBIDX_EHINV		(_ULCAST_(1) << CSR_TLBIDX_EHINV_SHIFT)
258 #define  CSR_TLBIDX_PS_SHIFT		24
259 #define  CSR_TLBIDX_PS_WIDTH		6
260 #define  CSR_TLBIDX_PS			(_ULCAST_(0x3f) << CSR_TLBIDX_PS_SHIFT)
261 #define  CSR_TLBIDX_IDX_SHIFT		0
262 #define  CSR_TLBIDX_IDX_WIDTH		12
263 #define  CSR_TLBIDX_IDX			(_ULCAST_(0xfff) << CSR_TLBIDX_IDX_SHIFT)
264 #define  CSR_TLBIDX_SIZEM		0x3f000000
265 #define  CSR_TLBIDX_SIZE		CSR_TLBIDX_PS_SHIFT
266 #define  CSR_TLBIDX_IDXM		0xfff
267 #define  CSR_INVALID_ENTRY(e)		(CSR_TLBIDX_EHINV | e)
268 
269 #define LOONGARCH_CSR_TLBEHI		0x11	/* TLB EntryHi */
270 
271 #define LOONGARCH_CSR_TLBELO0		0x12	/* TLB EntryLo0 */
272 #define  CSR_TLBLO0_RPLV_SHIFT		63
273 #define  CSR_TLBLO0_RPLV		(_ULCAST_(0x1) << CSR_TLBLO0_RPLV_SHIFT)
274 #define  CSR_TLBLO0_NX_SHIFT		62
275 #define  CSR_TLBLO0_NX			(_ULCAST_(0x1) << CSR_TLBLO0_NX_SHIFT)
276 #define  CSR_TLBLO0_NR_SHIFT		61
277 #define  CSR_TLBLO0_NR			(_ULCAST_(0x1) << CSR_TLBLO0_NR_SHIFT)
278 #define  CSR_TLBLO0_PFN_SHIFT		12
279 #define  CSR_TLBLO0_PFN_WIDTH		36
280 #define  CSR_TLBLO0_PFN			(_ULCAST_(0xfffffffff) << CSR_TLBLO0_PFN_SHIFT)
281 #define  CSR_TLBLO0_GLOBAL_SHIFT	6
282 #define  CSR_TLBLO0_GLOBAL		(_ULCAST_(0x1) << CSR_TLBLO0_GLOBAL_SHIFT)
283 #define  CSR_TLBLO0_CCA_SHIFT		4
284 #define  CSR_TLBLO0_CCA_WIDTH		2
285 #define  CSR_TLBLO0_CCA			(_ULCAST_(0x3) << CSR_TLBLO0_CCA_SHIFT)
286 #define  CSR_TLBLO0_PLV_SHIFT		2
287 #define  CSR_TLBLO0_PLV_WIDTH		2
288 #define  CSR_TLBLO0_PLV			(_ULCAST_(0x3) << CSR_TLBLO0_PLV_SHIFT)
289 #define  CSR_TLBLO0_WE_SHIFT		1
290 #define  CSR_TLBLO0_WE			(_ULCAST_(0x1) << CSR_TLBLO0_WE_SHIFT)
291 #define  CSR_TLBLO0_V_SHIFT		0
292 #define  CSR_TLBLO0_V			(_ULCAST_(0x1) << CSR_TLBLO0_V_SHIFT)
293 
294 #define LOONGARCH_CSR_TLBELO1		0x13	/* TLB EntryLo1 */
295 #define  CSR_TLBLO1_RPLV_SHIFT		63
296 #define  CSR_TLBLO1_RPLV		(_ULCAST_(0x1) << CSR_TLBLO1_RPLV_SHIFT)
297 #define  CSR_TLBLO1_NX_SHIFT		62
298 #define  CSR_TLBLO1_NX			(_ULCAST_(0x1) << CSR_TLBLO1_NX_SHIFT)
299 #define  CSR_TLBLO1_NR_SHIFT		61
300 #define  CSR_TLBLO1_NR			(_ULCAST_(0x1) << CSR_TLBLO1_NR_SHIFT)
301 #define  CSR_TLBLO1_PFN_SHIFT		12
302 #define  CSR_TLBLO1_PFN_WIDTH		36
303 #define  CSR_TLBLO1_PFN			(_ULCAST_(0xfffffffff) << CSR_TLBLO1_PFN_SHIFT)
304 #define  CSR_TLBLO1_GLOBAL_SHIFT	6
305 #define  CSR_TLBLO1_GLOBAL		(_ULCAST_(0x1) << CSR_TLBLO1_GLOBAL_SHIFT)
306 #define  CSR_TLBLO1_CCA_SHIFT		4
307 #define  CSR_TLBLO1_CCA_WIDTH		2
308 #define  CSR_TLBLO1_CCA			(_ULCAST_(0x3) << CSR_TLBLO1_CCA_SHIFT)
309 #define  CSR_TLBLO1_PLV_SHIFT		2
310 #define  CSR_TLBLO1_PLV_WIDTH		2
311 #define  CSR_TLBLO1_PLV			(_ULCAST_(0x3) << CSR_TLBLO1_PLV_SHIFT)
312 #define  CSR_TLBLO1_WE_SHIFT		1
313 #define  CSR_TLBLO1_WE			(_ULCAST_(0x1) << CSR_TLBLO1_WE_SHIFT)
314 #define  CSR_TLBLO1_V_SHIFT		0
315 #define  CSR_TLBLO1_V			(_ULCAST_(0x1) << CSR_TLBLO1_V_SHIFT)
316 
317 #define LOONGARCH_CSR_GTLBC		0x15	/* Guest TLB control */
318 #define  CSR_GTLBC_TGID_SHIFT		16
319 #define  CSR_GTLBC_TGID_WIDTH		8
320 #define  CSR_GTLBC_TGID_SHIFT_END	(CSR_GTLBC_TGID_SHIFT + CSR_GTLBC_TGID_WIDTH - 1)
321 #define  CSR_GTLBC_TGID			(_ULCAST_(0xff) << CSR_GTLBC_TGID_SHIFT)
322 #define  CSR_GTLBC_TOTI_SHIFT		13
323 #define  CSR_GTLBC_TOTI			(_ULCAST_(0x1) << CSR_GTLBC_TOTI_SHIFT)
324 #define  CSR_GTLBC_USETGID_SHIFT	12
325 #define  CSR_GTLBC_USETGID		(_ULCAST_(0x1) << CSR_GTLBC_USETGID_SHIFT)
326 #define  CSR_GTLBC_GMTLBSZ_SHIFT	0
327 #define  CSR_GTLBC_GMTLBSZ_WIDTH	6
328 #define  CSR_GTLBC_GMTLBSZ		(_ULCAST_(0x3f) << CSR_GTLBC_GMTLBSZ_SHIFT)
329 
330 #define LOONGARCH_CSR_TRGP		0x16	/* TLBR read guest info */
331 #define  CSR_TRGP_RID_SHIFT		16
332 #define  CSR_TRGP_RID_WIDTH		8
333 #define  CSR_TRGP_RID			(_ULCAST_(0xff) << CSR_TRGP_RID_SHIFT)
334 #define  CSR_TRGP_GTLB_SHIFT		0
335 #define  CSR_TRGP_GTLB			(1 << CSR_TRGP_GTLB_SHIFT)
336 
337 #define LOONGARCH_CSR_ASID		0x18	/* ASID */
338 #define  CSR_ASID_BIT_SHIFT		16	/* ASIDBits */
339 #define  CSR_ASID_BIT_WIDTH		8
340 #define  CSR_ASID_BIT			(_ULCAST_(0xff) << CSR_ASID_BIT_SHIFT)
341 #define  CSR_ASID_ASID_SHIFT		0
342 #define  CSR_ASID_ASID_WIDTH		10
343 #define  CSR_ASID_ASID			(_ULCAST_(0x3ff) << CSR_ASID_ASID_SHIFT)
344 
345 #define LOONGARCH_CSR_PGDL		0x19	/* Page table base address when VA[VALEN-1] = 0 */
346 
347 #define LOONGARCH_CSR_PGDH		0x1a	/* Page table base address when VA[VALEN-1] = 1 */
348 
349 #define LOONGARCH_CSR_PGD		0x1b	/* Page table base */
350 
351 #define LOONGARCH_CSR_PWCTL0		0x1c	/* PWCtl0 */
352 #define  CSR_PWCTL0_PTEW_SHIFT		30
353 #define  CSR_PWCTL0_PTEW_WIDTH		2
354 #define  CSR_PWCTL0_PTEW		(_ULCAST_(0x3) << CSR_PWCTL0_PTEW_SHIFT)
355 #define  CSR_PWCTL0_DIR1WIDTH_SHIFT	25
356 #define  CSR_PWCTL0_DIR1WIDTH_WIDTH	5
357 #define  CSR_PWCTL0_DIR1WIDTH		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR1WIDTH_SHIFT)
358 #define  CSR_PWCTL0_DIR1BASE_SHIFT	20
359 #define  CSR_PWCTL0_DIR1BASE_WIDTH	5
360 #define  CSR_PWCTL0_DIR1BASE		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR1BASE_SHIFT)
361 #define  CSR_PWCTL0_DIR0WIDTH_SHIFT	15
362 #define  CSR_PWCTL0_DIR0WIDTH_WIDTH	5
363 #define  CSR_PWCTL0_DIR0WIDTH		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR0WIDTH_SHIFT)
364 #define  CSR_PWCTL0_DIR0BASE_SHIFT	10
365 #define  CSR_PWCTL0_DIR0BASE_WIDTH	5
366 #define  CSR_PWCTL0_DIR0BASE		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR0BASE_SHIFT)
367 #define  CSR_PWCTL0_PTWIDTH_SHIFT	5
368 #define  CSR_PWCTL0_PTWIDTH_WIDTH	5
369 #define  CSR_PWCTL0_PTWIDTH		(_ULCAST_(0x1f) << CSR_PWCTL0_PTWIDTH_SHIFT)
370 #define  CSR_PWCTL0_PTBASE_SHIFT	0
371 #define  CSR_PWCTL0_PTBASE_WIDTH	5
372 #define  CSR_PWCTL0_PTBASE		(_ULCAST_(0x1f) << CSR_PWCTL0_PTBASE_SHIFT)
373 
374 #define LOONGARCH_CSR_PWCTL1		0x1d	/* PWCtl1 */
375 #define  CSR_PWCTL1_PTW_SHIFT		24
376 #define  CSR_PWCTL1_PTW_WIDTH		1
377 #define  CSR_PWCTL1_PTW			(_ULCAST_(0x1) << CSR_PWCTL1_PTW_SHIFT)
378 #define  CSR_PWCTL1_DIR3WIDTH_SHIFT	18
379 #define  CSR_PWCTL1_DIR3WIDTH_WIDTH	5
380 #define  CSR_PWCTL1_DIR3WIDTH		(_ULCAST_(0x1f) << CSR_PWCTL1_DIR3WIDTH_SHIFT)
381 #define  CSR_PWCTL1_DIR3BASE_SHIFT	12
382 #define  CSR_PWCTL1_DIR3BASE_WIDTH	5
383 #define  CSR_PWCTL1_DIR3BASE		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR3BASE_SHIFT)
384 #define  CSR_PWCTL1_DIR2WIDTH_SHIFT	6
385 #define  CSR_PWCTL1_DIR2WIDTH_WIDTH	5
386 #define  CSR_PWCTL1_DIR2WIDTH		(_ULCAST_(0x1f) << CSR_PWCTL1_DIR2WIDTH_SHIFT)
387 #define  CSR_PWCTL1_DIR2BASE_SHIFT	0
388 #define  CSR_PWCTL1_DIR2BASE_WIDTH	5
389 #define  CSR_PWCTL1_DIR2BASE		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR2BASE_SHIFT)
390 
391 #define LOONGARCH_CSR_STLBPGSIZE	0x1e
392 #define  CSR_STLBPGSIZE_PS_WIDTH	6
393 #define  CSR_STLBPGSIZE_PS		(_ULCAST_(0x3f))
394 
395 #define LOONGARCH_CSR_RVACFG		0x1f
396 #define  CSR_RVACFG_RDVA_WIDTH		4
397 #define  CSR_RVACFG_RDVA		(_ULCAST_(0xf))
398 
399 /* Config CSR registers */
400 #define LOONGARCH_CSR_CPUID		0x20	/* CPU core id */
401 #define  CSR_CPUID_COREID_WIDTH		9
402 #define  CSR_CPUID_COREID		_ULCAST_(0x1ff)
403 
404 #define LOONGARCH_CSR_PRCFG1		0x21	/* Config1 */
405 #define  CSR_CONF1_VSMAX_SHIFT		12
406 #define  CSR_CONF1_VSMAX_WIDTH		3
407 #define  CSR_CONF1_VSMAX		(_ULCAST_(7) << CSR_CONF1_VSMAX_SHIFT)
408 #define  CSR_CONF1_TMRBITS_SHIFT	4
409 #define  CSR_CONF1_TMRBITS_WIDTH	8
410 #define  CSR_CONF1_TMRBITS		(_ULCAST_(0xff) << CSR_CONF1_TMRBITS_SHIFT)
411 #define  CSR_CONF1_KSNUM_WIDTH		4
412 #define  CSR_CONF1_KSNUM		_ULCAST_(0xf)
413 
414 #define LOONGARCH_CSR_PRCFG2		0x22	/* Config2 */
415 #define  CSR_CONF2_PGMASK_SUPP		0x3ffff000
416 
417 #define LOONGARCH_CSR_PRCFG3		0x23	/* Config3 */
418 #define  CSR_CONF3_STLBIDX_SHIFT	20
419 #define  CSR_CONF3_STLBIDX_WIDTH	6
420 #define  CSR_CONF3_STLBIDX		(_ULCAST_(0x3f) << CSR_CONF3_STLBIDX_SHIFT)
421 #define  CSR_CONF3_STLBWAYS_SHIFT	12
422 #define  CSR_CONF3_STLBWAYS_WIDTH	8
423 #define  CSR_CONF3_STLBWAYS		(_ULCAST_(0xff) << CSR_CONF3_STLBWAYS_SHIFT)
424 #define  CSR_CONF3_MTLBSIZE_SHIFT	4
425 #define  CSR_CONF3_MTLBSIZE_WIDTH	8
426 #define  CSR_CONF3_MTLBSIZE		(_ULCAST_(0xff) << CSR_CONF3_MTLBSIZE_SHIFT)
427 #define  CSR_CONF3_TLBTYPE_SHIFT	0
428 #define  CSR_CONF3_TLBTYPE_WIDTH	4
429 #define  CSR_CONF3_TLBTYPE		(_ULCAST_(0xf) << CSR_CONF3_TLBTYPE_SHIFT)
430 
431 /* KSave registers */
432 #define LOONGARCH_CSR_KS0		0x30
433 #define LOONGARCH_CSR_KS1		0x31
434 #define LOONGARCH_CSR_KS2		0x32
435 #define LOONGARCH_CSR_KS3		0x33
436 #define LOONGARCH_CSR_KS4		0x34
437 #define LOONGARCH_CSR_KS5		0x35
438 #define LOONGARCH_CSR_KS6		0x36
439 #define LOONGARCH_CSR_KS7		0x37
440 #define LOONGARCH_CSR_KS8		0x38
441 
442 /* Exception allocated KS0, KS1 and KS2 statically */
443 #define EXCEPTION_KS0			LOONGARCH_CSR_KS0
444 #define EXCEPTION_KS1			LOONGARCH_CSR_KS1
445 #define EXCEPTION_KS2			LOONGARCH_CSR_KS2
446 #define EXC_KSAVE_MASK			(1 << 0 | 1 << 1 | 1 << 2)
447 
448 /* Percpu-data base allocated KS3 statically */
449 #define PERCPU_BASE_KS			LOONGARCH_CSR_KS3
450 #define PERCPU_KSAVE_MASK		(1 << 3)
451 
452 /* KVM allocated KS4 and KS5 statically */
453 #define KVM_VCPU_KS			LOONGARCH_CSR_KS4
454 #define KVM_TEMP_KS			LOONGARCH_CSR_KS5
455 #define KVM_KSAVE_MASK			(1 << 4 | 1 << 5)
456 
457 /* Timer registers */
458 #define LOONGARCH_CSR_TMID		0x40	/* Timer ID */
459 
460 #define LOONGARCH_CSR_TCFG		0x41	/* Timer config */
461 #define  CSR_TCFG_VAL_SHIFT		2
462 #define	 CSR_TCFG_VAL_WIDTH		48
463 #define  CSR_TCFG_VAL			(_ULCAST_(0x3fffffffffff) << CSR_TCFG_VAL_SHIFT)
464 #define  CSR_TCFG_PERIOD_SHIFT		1
465 #define  CSR_TCFG_PERIOD		(_ULCAST_(0x1) << CSR_TCFG_PERIOD_SHIFT)
466 #define  CSR_TCFG_EN			(_ULCAST_(0x1))
467 
468 #define LOONGARCH_CSR_TVAL		0x42	/* Timer value */
469 
470 #define LOONGARCH_CSR_CNTC		0x43	/* Timer offset */
471 
472 #define LOONGARCH_CSR_TINTCLR		0x44	/* Timer interrupt clear */
473 #define  CSR_TINTCLR_TI_SHIFT		0
474 #define  CSR_TINTCLR_TI			(1 << CSR_TINTCLR_TI_SHIFT)
475 
476 /* Guest registers */
477 #define LOONGARCH_CSR_GSTAT		0x50	/* Guest status */
478 #define  CSR_GSTAT_GID_SHIFT		16
479 #define  CSR_GSTAT_GID_WIDTH		8
480 #define  CSR_GSTAT_GID_SHIFT_END	(CSR_GSTAT_GID_SHIFT + CSR_GSTAT_GID_WIDTH - 1)
481 #define  CSR_GSTAT_GID			(_ULCAST_(0xff) << CSR_GSTAT_GID_SHIFT)
482 #define  CSR_GSTAT_GIDBIT_SHIFT		4
483 #define  CSR_GSTAT_GIDBIT_WIDTH		6
484 #define  CSR_GSTAT_GIDBIT		(_ULCAST_(0x3f) << CSR_GSTAT_GIDBIT_SHIFT)
485 #define  CSR_GSTAT_PVM_SHIFT		1
486 #define  CSR_GSTAT_PVM			(_ULCAST_(0x1) << CSR_GSTAT_PVM_SHIFT)
487 #define  CSR_GSTAT_VM_SHIFT		0
488 #define  CSR_GSTAT_VM			(_ULCAST_(0x1) << CSR_GSTAT_VM_SHIFT)
489 
490 #define LOONGARCH_CSR_GCFG		0x51	/* Guest config */
491 #define  CSR_GCFG_GPERF_SHIFT		24
492 #define  CSR_GCFG_GPERF_WIDTH		3
493 #define  CSR_GCFG_GPERF			(_ULCAST_(0x7) << CSR_GCFG_GPERF_SHIFT)
494 #define  CSR_GCFG_GCI_SHIFT		20
495 #define  CSR_GCFG_GCI_WIDTH		2
496 #define  CSR_GCFG_GCI			(_ULCAST_(0x3) << CSR_GCFG_GCI_SHIFT)
497 #define  CSR_GCFG_GCI_ALL		(_ULCAST_(0x0) << CSR_GCFG_GCI_SHIFT)
498 #define  CSR_GCFG_GCI_HIT		(_ULCAST_(0x1) << CSR_GCFG_GCI_SHIFT)
499 #define  CSR_GCFG_GCI_SECURE		(_ULCAST_(0x2) << CSR_GCFG_GCI_SHIFT)
500 #define  CSR_GCFG_GCIP_SHIFT		16
501 #define  CSR_GCFG_GCIP			(_ULCAST_(0xf) << CSR_GCFG_GCIP_SHIFT)
502 #define  CSR_GCFG_GCIP_ALL		(_ULCAST_(0x1) << CSR_GCFG_GCIP_SHIFT)
503 #define  CSR_GCFG_GCIP_HIT		(_ULCAST_(0x1) << (CSR_GCFG_GCIP_SHIFT + 1))
504 #define  CSR_GCFG_GCIP_SECURE		(_ULCAST_(0x1) << (CSR_GCFG_GCIP_SHIFT + 2))
505 #define  CSR_GCFG_TORU_SHIFT		15
506 #define  CSR_GCFG_TORU			(_ULCAST_(0x1) << CSR_GCFG_TORU_SHIFT)
507 #define  CSR_GCFG_TORUP_SHIFT		14
508 #define  CSR_GCFG_TORUP			(_ULCAST_(0x1) << CSR_GCFG_TORUP_SHIFT)
509 #define  CSR_GCFG_TOP_SHIFT		13
510 #define  CSR_GCFG_TOP			(_ULCAST_(0x1) << CSR_GCFG_TOP_SHIFT)
511 #define  CSR_GCFG_TOPP_SHIFT		12
512 #define  CSR_GCFG_TOPP			(_ULCAST_(0x1) << CSR_GCFG_TOPP_SHIFT)
513 #define  CSR_GCFG_TOE_SHIFT		11
514 #define  CSR_GCFG_TOE			(_ULCAST_(0x1) << CSR_GCFG_TOE_SHIFT)
515 #define  CSR_GCFG_TOEP_SHIFT		10
516 #define  CSR_GCFG_TOEP			(_ULCAST_(0x1) << CSR_GCFG_TOEP_SHIFT)
517 #define  CSR_GCFG_TIT_SHIFT		9
518 #define  CSR_GCFG_TIT			(_ULCAST_(0x1) << CSR_GCFG_TIT_SHIFT)
519 #define  CSR_GCFG_TITP_SHIFT		8
520 #define  CSR_GCFG_TITP			(_ULCAST_(0x1) << CSR_GCFG_TITP_SHIFT)
521 #define  CSR_GCFG_SIT_SHIFT		7
522 #define  CSR_GCFG_SIT			(_ULCAST_(0x1) << CSR_GCFG_SIT_SHIFT)
523 #define  CSR_GCFG_SITP_SHIFT		6
524 #define  CSR_GCFG_SITP			(_ULCAST_(0x1) << CSR_GCFG_SITP_SHIFT)
525 #define  CSR_GCFG_MATC_SHITF		4
526 #define  CSR_GCFG_MATC_WIDTH		2
527 #define  CSR_GCFG_MATC_MASK		(_ULCAST_(0x3) << CSR_GCFG_MATC_SHITF)
528 #define  CSR_GCFG_MATC_GUEST		(_ULCAST_(0x0) << CSR_GCFG_MATC_SHITF)
529 #define  CSR_GCFG_MATC_ROOT		(_ULCAST_(0x1) << CSR_GCFG_MATC_SHITF)
530 #define  CSR_GCFG_MATC_NEST		(_ULCAST_(0x2) << CSR_GCFG_MATC_SHITF)
531 #define  CSR_GCFG_MATP_NEST_SHIFT	2
532 #define  CSR_GCFG_MATP_NEST		(_ULCAST_(0x1) << CSR_GCFG_MATP_NEST_SHIFT)
533 #define  CSR_GCFG_MATP_ROOT_SHIFT	1
534 #define  CSR_GCFG_MATP_ROOT		(_ULCAST_(0x1) << CSR_GCFG_MATP_ROOT_SHIFT)
535 #define  CSR_GCFG_MATP_GUEST_SHIFT	0
536 #define  CSR_GCFG_MATP_GUEST		(_ULCAST_(0x1) << CSR_GCFG_MATP_GUEST_SHIFT)
537 
538 #define LOONGARCH_CSR_GINTC		0x52	/* Guest interrupt control */
539 #define  CSR_GINTC_HC_SHIFT		16
540 #define  CSR_GINTC_HC_WIDTH		8
541 #define  CSR_GINTC_HC			(_ULCAST_(0xff) << CSR_GINTC_HC_SHIFT)
542 #define  CSR_GINTC_PIP_SHIFT		8
543 #define  CSR_GINTC_PIP_WIDTH		8
544 #define  CSR_GINTC_PIP			(_ULCAST_(0xff) << CSR_GINTC_PIP_SHIFT)
545 #define  CSR_GINTC_VIP_SHIFT		0
546 #define  CSR_GINTC_VIP_WIDTH		8
547 #define  CSR_GINTC_VIP			(_ULCAST_(0xff))
548 
549 #define LOONGARCH_CSR_GCNTC		0x53	/* Guest timer offset */
550 
551 /* LLBCTL register */
552 #define LOONGARCH_CSR_LLBCTL		0x60	/* LLBit control */
553 #define  CSR_LLBCTL_ROLLB_SHIFT		0
554 #define  CSR_LLBCTL_ROLLB		(_ULCAST_(1) << CSR_LLBCTL_ROLLB_SHIFT)
555 #define  CSR_LLBCTL_WCLLB_SHIFT		1
556 #define  CSR_LLBCTL_WCLLB		(_ULCAST_(1) << CSR_LLBCTL_WCLLB_SHIFT)
557 #define  CSR_LLBCTL_KLO_SHIFT		2
558 #define  CSR_LLBCTL_KLO			(_ULCAST_(1) << CSR_LLBCTL_KLO_SHIFT)
559 
560 /* Implement dependent */
561 #define LOONGARCH_CSR_IMPCTL1		0x80	/* Loongson config1 */
562 #define  CSR_MISPEC_SHIFT		20
563 #define  CSR_MISPEC_WIDTH		8
564 #define  CSR_MISPEC			(_ULCAST_(0xff) << CSR_MISPEC_SHIFT)
565 #define  CSR_SSEN_SHIFT			18
566 #define  CSR_SSEN			(_ULCAST_(1) << CSR_SSEN_SHIFT)
567 #define  CSR_SCRAND_SHIFT		17
568 #define  CSR_SCRAND			(_ULCAST_(1) << CSR_SCRAND_SHIFT)
569 #define  CSR_LLEXCL_SHIFT		16
570 #define  CSR_LLEXCL			(_ULCAST_(1) << CSR_LLEXCL_SHIFT)
571 #define  CSR_DISVC_SHIFT		15
572 #define  CSR_DISVC			(_ULCAST_(1) << CSR_DISVC_SHIFT)
573 #define  CSR_VCLRU_SHIFT		14
574 #define  CSR_VCLRU			(_ULCAST_(1) << CSR_VCLRU_SHIFT)
575 #define  CSR_DCLRU_SHIFT		13
576 #define  CSR_DCLRU			(_ULCAST_(1) << CSR_DCLRU_SHIFT)
577 #define  CSR_FASTLDQ_SHIFT		12
578 #define  CSR_FASTLDQ			(_ULCAST_(1) << CSR_FASTLDQ_SHIFT)
579 #define  CSR_USERCAC_SHIFT		11
580 #define  CSR_USERCAC			(_ULCAST_(1) << CSR_USERCAC_SHIFT)
581 #define  CSR_ANTI_MISPEC_SHIFT		10
582 #define  CSR_ANTI_MISPEC		(_ULCAST_(1) << CSR_ANTI_MISPEC_SHIFT)
583 #define  CSR_AUTO_FLUSHSFB_SHIFT	9
584 #define  CSR_AUTO_FLUSHSFB		(_ULCAST_(1) << CSR_AUTO_FLUSHSFB_SHIFT)
585 #define  CSR_STFILL_SHIFT		8
586 #define  CSR_STFILL			(_ULCAST_(1) << CSR_STFILL_SHIFT)
587 #define  CSR_LIFEP_SHIFT		7
588 #define  CSR_LIFEP			(_ULCAST_(1) << CSR_LIFEP_SHIFT)
589 #define  CSR_LLSYNC_SHIFT		6
590 #define  CSR_LLSYNC			(_ULCAST_(1) << CSR_LLSYNC_SHIFT)
591 #define  CSR_BRBTDIS_SHIFT		5
592 #define  CSR_BRBTDIS			(_ULCAST_(1) << CSR_BRBTDIS_SHIFT)
593 #define  CSR_RASDIS_SHIFT		4
594 #define  CSR_RASDIS			(_ULCAST_(1) << CSR_RASDIS_SHIFT)
595 #define  CSR_STPRE_SHIFT		2
596 #define  CSR_STPRE_WIDTH		2
597 #define  CSR_STPRE			(_ULCAST_(3) << CSR_STPRE_SHIFT)
598 #define  CSR_INSTPRE_SHIFT		1
599 #define  CSR_INSTPRE			(_ULCAST_(1) << CSR_INSTPRE_SHIFT)
600 #define  CSR_DATAPRE_SHIFT		0
601 #define  CSR_DATAPRE			(_ULCAST_(1) << CSR_DATAPRE_SHIFT)
602 
603 #define LOONGARCH_CSR_IMPCTL2		0x81	/* Loongson config2 */
604 #define  CSR_FLUSH_MTLB_SHIFT		0
605 #define  CSR_FLUSH_MTLB			(_ULCAST_(1) << CSR_FLUSH_MTLB_SHIFT)
606 #define  CSR_FLUSH_STLB_SHIFT		1
607 #define  CSR_FLUSH_STLB			(_ULCAST_(1) << CSR_FLUSH_STLB_SHIFT)
608 #define  CSR_FLUSH_DTLB_SHIFT		2
609 #define  CSR_FLUSH_DTLB			(_ULCAST_(1) << CSR_FLUSH_DTLB_SHIFT)
610 #define  CSR_FLUSH_ITLB_SHIFT		3
611 #define  CSR_FLUSH_ITLB			(_ULCAST_(1) << CSR_FLUSH_ITLB_SHIFT)
612 #define  CSR_FLUSH_BTAC_SHIFT		4
613 #define  CSR_FLUSH_BTAC			(_ULCAST_(1) << CSR_FLUSH_BTAC_SHIFT)
614 
615 #define LOONGARCH_CSR_GNMI		0x82
616 
617 /* TLB Refill registers */
618 #define LOONGARCH_CSR_TLBRENTRY		0x88	/* TLB refill exception entry */
619 #define LOONGARCH_CSR_TLBRBADV		0x89	/* TLB refill badvaddr */
620 #define LOONGARCH_CSR_TLBRERA		0x8a	/* TLB refill ERA */
621 #define LOONGARCH_CSR_TLBRSAVE		0x8b	/* KSave for TLB refill exception */
622 #define LOONGARCH_CSR_TLBRELO0		0x8c	/* TLB refill entrylo0 */
623 #define LOONGARCH_CSR_TLBRELO1		0x8d	/* TLB refill entrylo1 */
624 #define LOONGARCH_CSR_TLBREHI		0x8e	/* TLB refill entryhi */
625 #define  CSR_TLBREHI_PS_SHIFT		0
626 #define  CSR_TLBREHI_PS			(_ULCAST_(0x3f) << CSR_TLBREHI_PS_SHIFT)
627 #define LOONGARCH_CSR_TLBRPRMD		0x8f	/* TLB refill mode info */
628 
629 /* Machine Error registers */
630 #define LOONGARCH_CSR_MERRCTL		0x90	/* MERRCTL */
631 #define LOONGARCH_CSR_MERRINFO1		0x91	/* MError info1 */
632 #define LOONGARCH_CSR_MERRINFO2		0x92	/* MError info2 */
633 #define LOONGARCH_CSR_MERRENTRY		0x93	/* MError exception entry */
634 #define LOONGARCH_CSR_MERRERA		0x94	/* MError exception ERA */
635 #define LOONGARCH_CSR_MERRSAVE		0x95	/* KSave for machine error exception */
636 
637 #define LOONGARCH_CSR_CTAG		0x98	/* TagLo + TagHi */
638 
639 #define LOONGARCH_CSR_PRID		0xc0
640 
641 /* Shadow MCSR : 0xc0 ~ 0xff */
642 #define LOONGARCH_CSR_MCSR0		0xc0	/* CPUCFG0 and CPUCFG1 */
643 #define  MCSR0_INT_IMPL_SHIFT		58
644 #define  MCSR0_INT_IMPL			0
645 #define  MCSR0_IOCSR_BRD_SHIFT		57
646 #define  MCSR0_IOCSR_BRD		(_ULCAST_(1) << MCSR0_IOCSR_BRD_SHIFT)
647 #define  MCSR0_HUGEPG_SHIFT		56
648 #define  MCSR0_HUGEPG			(_ULCAST_(1) << MCSR0_HUGEPG_SHIFT)
649 #define  MCSR0_RPLMTLB_SHIFT		55
650 #define  MCSR0_RPLMTLB			(_ULCAST_(1) << MCSR0_RPLMTLB_SHIFT)
651 #define  MCSR0_EP_SHIFT			54
652 #define  MCSR0_EP			(_ULCAST_(1) << MCSR0_EP_SHIFT)
653 #define  MCSR0_RI_SHIFT			53
654 #define  MCSR0_RI			(_ULCAST_(1) << MCSR0_RI_SHIFT)
655 #define  MCSR0_UAL_SHIFT		52
656 #define  MCSR0_UAL			(_ULCAST_(1) << MCSR0_UAL_SHIFT)
657 #define  MCSR0_VABIT_SHIFT		44
658 #define  MCSR0_VABIT_WIDTH		8
659 #define  MCSR0_VABIT			(_ULCAST_(0xff) << MCSR0_VABIT_SHIFT)
660 #define  VABIT_DEFAULT			0x2f
661 #define  MCSR0_PABIT_SHIFT		36
662 #define  MCSR0_PABIT_WIDTH		8
663 #define  MCSR0_PABIT			(_ULCAST_(0xff) << MCSR0_PABIT_SHIFT)
664 #define  PABIT_DEFAULT			0x2f
665 #define  MCSR0_IOCSR_SHIFT		35
666 #define  MCSR0_IOCSR			(_ULCAST_(1) << MCSR0_IOCSR_SHIFT)
667 #define  MCSR0_PAGING_SHIFT		34
668 #define  MCSR0_PAGING			(_ULCAST_(1) << MCSR0_PAGING_SHIFT)
669 #define  MCSR0_GR64_SHIFT		33
670 #define  MCSR0_GR64			(_ULCAST_(1) << MCSR0_GR64_SHIFT)
671 #define  GR64_DEFAULT			1
672 #define  MCSR0_GR32_SHIFT		32
673 #define  MCSR0_GR32			(_ULCAST_(1) << MCSR0_GR32_SHIFT)
674 #define  GR32_DEFAULT			0
675 #define  MCSR0_PRID_WIDTH		32
676 #define  MCSR0_PRID			0x14C010
677 
678 #define LOONGARCH_CSR_MCSR1		0xc1	/* CPUCFG2 and CPUCFG3 */
679 #define  MCSR1_HPFOLD_SHIFT		43
680 #define  MCSR1_HPFOLD			(_ULCAST_(1) << MCSR1_HPFOLD_SHIFT)
681 #define  MCSR1_SPW_LVL_SHIFT		40
682 #define  MCSR1_SPW_LVL_WIDTH		3
683 #define  MCSR1_SPW_LVL			(_ULCAST_(7) << MCSR1_SPW_LVL_SHIFT)
684 #define  MCSR1_ICACHET_SHIFT		39
685 #define  MCSR1_ICACHET			(_ULCAST_(1) << MCSR1_ICACHET_SHIFT)
686 #define  MCSR1_ITLBT_SHIFT		38
687 #define  MCSR1_ITLBT			(_ULCAST_(1) << MCSR1_ITLBT_SHIFT)
688 #define  MCSR1_LLDBAR_SHIFT		37
689 #define  MCSR1_LLDBAR			(_ULCAST_(1) << MCSR1_LLDBAR_SHIFT)
690 #define  MCSR1_SCDLY_SHIFT		36
691 #define  MCSR1_SCDLY			(_ULCAST_(1) << MCSR1_SCDLY_SHIFT)
692 #define  MCSR1_LLEXC_SHIFT		35
693 #define  MCSR1_LLEXC			(_ULCAST_(1) << MCSR1_LLEXC_SHIFT)
694 #define  MCSR1_UCACC_SHIFT		34
695 #define  MCSR1_UCACC			(_ULCAST_(1) << MCSR1_UCACC_SHIFT)
696 #define  MCSR1_SFB_SHIFT		33
697 #define  MCSR1_SFB			(_ULCAST_(1) << MCSR1_SFB_SHIFT)
698 #define  MCSR1_CCDMA_SHIFT		32
699 #define  MCSR1_CCDMA			(_ULCAST_(1) << MCSR1_CCDMA_SHIFT)
700 #define  MCSR1_LAMO_SHIFT		22
701 #define  MCSR1_LAMO			(_ULCAST_(1) << MCSR1_LAMO_SHIFT)
702 #define  MCSR1_LSPW_SHIFT		21
703 #define  MCSR1_LSPW			(_ULCAST_(1) << MCSR1_LSPW_SHIFT)
704 #define  MCSR1_MIPSBT_SHIFT		20
705 #define  MCSR1_MIPSBT			(_ULCAST_(1) << MCSR1_MIPSBT_SHIFT)
706 #define  MCSR1_ARMBT_SHIFT		19
707 #define  MCSR1_ARMBT			(_ULCAST_(1) << MCSR1_ARMBT_SHIFT)
708 #define  MCSR1_X86BT_SHIFT		18
709 #define  MCSR1_X86BT			(_ULCAST_(1) << MCSR1_X86BT_SHIFT)
710 #define  MCSR1_LLFTPVERS_SHIFT		15
711 #define  MCSR1_LLFTPVERS_WIDTH		3
712 #define  MCSR1_LLFTPVERS		(_ULCAST_(7) << MCSR1_LLFTPVERS_SHIFT)
713 #define  MCSR1_LLFTP_SHIFT		14
714 #define  MCSR1_LLFTP			(_ULCAST_(1) << MCSR1_LLFTP_SHIFT)
715 #define  MCSR1_VZVERS_SHIFT		11
716 #define  MCSR1_VZVERS_WIDTH		3
717 #define  MCSR1_VZVERS			(_ULCAST_(7) << MCSR1_VZVERS_SHIFT)
718 #define  MCSR1_VZ_SHIFT			10
719 #define  MCSR1_VZ			(_ULCAST_(1) << MCSR1_VZ_SHIFT)
720 #define  MCSR1_CRYPTO_SHIFT		9
721 #define  MCSR1_CRYPTO			(_ULCAST_(1) << MCSR1_CRYPTO_SHIFT)
722 #define  MCSR1_COMPLEX_SHIFT		8
723 #define  MCSR1_COMPLEX			(_ULCAST_(1) << MCSR1_COMPLEX_SHIFT)
724 #define  MCSR1_LASX_SHIFT		7
725 #define  MCSR1_LASX			(_ULCAST_(1) << MCSR1_LASX_SHIFT)
726 #define  MCSR1_LSX_SHIFT		6
727 #define  MCSR1_LSX			(_ULCAST_(1) << MCSR1_LSX_SHIFT)
728 #define  MCSR1_FPVERS_SHIFT		3
729 #define  MCSR1_FPVERS_WIDTH		3
730 #define  MCSR1_FPVERS			(_ULCAST_(7) << MCSR1_FPVERS_SHIFT)
731 #define  MCSR1_FPDP_SHIFT		2
732 #define  MCSR1_FPDP			(_ULCAST_(1) << MCSR1_FPDP_SHIFT)
733 #define  MCSR1_FPSP_SHIFT		1
734 #define  MCSR1_FPSP			(_ULCAST_(1) << MCSR1_FPSP_SHIFT)
735 #define  MCSR1_FP_SHIFT			0
736 #define  MCSR1_FP			(_ULCAST_(1) << MCSR1_FP_SHIFT)
737 
738 #define LOONGARCH_CSR_MCSR2		0xc2	/* CPUCFG4 and CPUCFG5 */
739 #define  MCSR2_CCDIV_SHIFT		48
740 #define  MCSR2_CCDIV_WIDTH		16
741 #define  MCSR2_CCDIV			(_ULCAST_(0xffff) << MCSR2_CCDIV_SHIFT)
742 #define  MCSR2_CCMUL_SHIFT		32
743 #define  MCSR2_CCMUL_WIDTH		16
744 #define  MCSR2_CCMUL			(_ULCAST_(0xffff) << MCSR2_CCMUL_SHIFT)
745 #define  MCSR2_CCFREQ_WIDTH		32
746 #define  MCSR2_CCFREQ			(_ULCAST_(0xffffffff))
747 #define  CCFREQ_DEFAULT			0x5f5e100	/* 100MHz */
748 
749 #define LOONGARCH_CSR_MCSR3		0xc3	/* CPUCFG6 */
750 #define  MCSR3_UPM_SHIFT		14
751 #define  MCSR3_UPM			(_ULCAST_(1) << MCSR3_UPM_SHIFT)
752 #define  MCSR3_PMBITS_SHIFT		8
753 #define  MCSR3_PMBITS_WIDTH		6
754 #define  MCSR3_PMBITS			(_ULCAST_(0x3f) << MCSR3_PMBITS_SHIFT)
755 #define  PMBITS_DEFAULT			0x40
756 #define  MCSR3_PMNUM_SHIFT		4
757 #define  MCSR3_PMNUM_WIDTH		4
758 #define  MCSR3_PMNUM			(_ULCAST_(0xf) << MCSR3_PMNUM_SHIFT)
759 #define  MCSR3_PAMVER_SHIFT		1
760 #define  MCSR3_PAMVER_WIDTH		3
761 #define  MCSR3_PAMVER			(_ULCAST_(0x7) << MCSR3_PAMVER_SHIFT)
762 #define  MCSR3_PMP_SHIFT		0
763 #define  MCSR3_PMP			(_ULCAST_(1) << MCSR3_PMP_SHIFT)
764 
765 #define LOONGARCH_CSR_MCSR8		0xc8	/* CPUCFG16 and CPUCFG17 */
766 #define  MCSR8_L1I_SIZE_SHIFT		56
767 #define  MCSR8_L1I_SIZE_WIDTH		7
768 #define  MCSR8_L1I_SIZE			(_ULCAST_(0x7f) << MCSR8_L1I_SIZE_SHIFT)
769 #define  MCSR8_L1I_IDX_SHIFT		48
770 #define  MCSR8_L1I_IDX_WIDTH		8
771 #define  MCSR8_L1I_IDX			(_ULCAST_(0xff) << MCSR8_L1I_IDX_SHIFT)
772 #define  MCSR8_L1I_WAY_SHIFT		32
773 #define  MCSR8_L1I_WAY_WIDTH		16
774 #define  MCSR8_L1I_WAY			(_ULCAST_(0xffff) << MCSR8_L1I_WAY_SHIFT)
775 #define  MCSR8_L3DINCL_SHIFT		16
776 #define  MCSR8_L3DINCL			(_ULCAST_(1) << MCSR8_L3DINCL_SHIFT)
777 #define  MCSR8_L3DPRIV_SHIFT		15
778 #define  MCSR8_L3DPRIV			(_ULCAST_(1) << MCSR8_L3DPRIV_SHIFT)
779 #define  MCSR8_L3DPRE_SHIFT		14
780 #define  MCSR8_L3DPRE			(_ULCAST_(1) << MCSR8_L3DPRE_SHIFT)
781 #define  MCSR8_L3IUINCL_SHIFT		13
782 #define  MCSR8_L3IUINCL			(_ULCAST_(1) << MCSR8_L3IUINCL_SHIFT)
783 #define  MCSR8_L3IUPRIV_SHIFT		12
784 #define  MCSR8_L3IUPRIV			(_ULCAST_(1) << MCSR8_L3IUPRIV_SHIFT)
785 #define  MCSR8_L3IUUNIFY_SHIFT		11
786 #define  MCSR8_L3IUUNIFY		(_ULCAST_(1) << MCSR8_L3IUUNIFY_SHIFT)
787 #define  MCSR8_L3IUPRE_SHIFT		10
788 #define  MCSR8_L3IUPRE			(_ULCAST_(1) << MCSR8_L3IUPRE_SHIFT)
789 #define  MCSR8_L2DINCL_SHIFT		9
790 #define  MCSR8_L2DINCL			(_ULCAST_(1) << MCSR8_L2DINCL_SHIFT)
791 #define  MCSR8_L2DPRIV_SHIFT		8
792 #define  MCSR8_L2DPRIV			(_ULCAST_(1) << MCSR8_L2DPRIV_SHIFT)
793 #define  MCSR8_L2DPRE_SHIFT		7
794 #define  MCSR8_L2DPRE			(_ULCAST_(1) << MCSR8_L2DPRE_SHIFT)
795 #define  MCSR8_L2IUINCL_SHIFT		6
796 #define  MCSR8_L2IUINCL			(_ULCAST_(1) << MCSR8_L2IUINCL_SHIFT)
797 #define  MCSR8_L2IUPRIV_SHIFT		5
798 #define  MCSR8_L2IUPRIV			(_ULCAST_(1) << MCSR8_L2IUPRIV_SHIFT)
799 #define  MCSR8_L2IUUNIFY_SHIFT		4
800 #define  MCSR8_L2IUUNIFY		(_ULCAST_(1) << MCSR8_L2IUUNIFY_SHIFT)
801 #define  MCSR8_L2IUPRE_SHIFT		3
802 #define  MCSR8_L2IUPRE			(_ULCAST_(1) << MCSR8_L2IUPRE_SHIFT)
803 #define  MCSR8_L1DPRE_SHIFT		2
804 #define  MCSR8_L1DPRE			(_ULCAST_(1) << MCSR8_L1DPRE_SHIFT)
805 #define  MCSR8_L1IUUNIFY_SHIFT		1
806 #define  MCSR8_L1IUUNIFY		(_ULCAST_(1) << MCSR8_L1IUUNIFY_SHIFT)
807 #define  MCSR8_L1IUPRE_SHIFT		0
808 #define  MCSR8_L1IUPRE			(_ULCAST_(1) << MCSR8_L1IUPRE_SHIFT)
809 
810 #define LOONGARCH_CSR_MCSR9		0xc9	/* CPUCFG18 and CPUCFG19 */
811 #define  MCSR9_L2U_SIZE_SHIFT		56
812 #define  MCSR9_L2U_SIZE_WIDTH		7
813 #define  MCSR9_L2U_SIZE			(_ULCAST_(0x7f) << MCSR9_L2U_SIZE_SHIFT)
814 #define  MCSR9_L2U_IDX_SHIFT		48
815 #define  MCSR9_L2U_IDX_WIDTH		8
816 #define  MCSR9_L2U_IDX			(_ULCAST_(0xff) << MCSR9_IDX_LOG_SHIFT)
817 #define  MCSR9_L2U_WAY_SHIFT		32
818 #define  MCSR9_L2U_WAY_WIDTH		16
819 #define  MCSR9_L2U_WAY			(_ULCAST_(0xffff) << MCSR9_L2U_WAY_SHIFT)
820 #define  MCSR9_L1D_SIZE_SHIFT		24
821 #define  MCSR9_L1D_SIZE_WIDTH		7
822 #define  MCSR9_L1D_SIZE			(_ULCAST_(0x7f) << MCSR9_L1D_SIZE_SHIFT)
823 #define  MCSR9_L1D_IDX_SHIFT		16
824 #define  MCSR9_L1D_IDX_WIDTH		8
825 #define  MCSR9_L1D_IDX			(_ULCAST_(0xff) << MCSR9_L1D_IDX_SHIFT)
826 #define  MCSR9_L1D_WAY_SHIFT		0
827 #define  MCSR9_L1D_WAY_WIDTH		16
828 #define  MCSR9_L1D_WAY			(_ULCAST_(0xffff) << MCSR9_L1D_WAY_SHIFT)
829 
830 #define LOONGARCH_CSR_MCSR10		0xca	/* CPUCFG20 */
831 #define  MCSR10_L3U_SIZE_SHIFT		24
832 #define  MCSR10_L3U_SIZE_WIDTH		7
833 #define  MCSR10_L3U_SIZE		(_ULCAST_(0x7f) << MCSR10_L3U_SIZE_SHIFT)
834 #define  MCSR10_L3U_IDX_SHIFT		16
835 #define  MCSR10_L3U_IDX_WIDTH		8
836 #define  MCSR10_L3U_IDX			(_ULCAST_(0xff) << MCSR10_L3U_IDX_SHIFT)
837 #define  MCSR10_L3U_WAY_SHIFT		0
838 #define  MCSR10_L3U_WAY_WIDTH		16
839 #define  MCSR10_L3U_WAY			(_ULCAST_(0xffff) << MCSR10_L3U_WAY_SHIFT)
840 
841 #define LOONGARCH_CSR_MCSR24		0xf0	/* cpucfg48 */
842 #define  MCSR24_RAMCG_SHIFT		3
843 #define  MCSR24_RAMCG			(_ULCAST_(1) << MCSR24_RAMCG_SHIFT)
844 #define  MCSR24_VFPUCG_SHIFT		2
845 #define  MCSR24_VFPUCG			(_ULCAST_(1) << MCSR24_VFPUCG_SHIFT)
846 #define  MCSR24_NAPEN_SHIFT		1
847 #define  MCSR24_NAPEN			(_ULCAST_(1) << MCSR24_NAPEN_SHIFT)
848 #define  MCSR24_MCSRLOCK_SHIFT		0
849 #define  MCSR24_MCSRLOCK		(_ULCAST_(1) << MCSR24_MCSRLOCK_SHIFT)
850 
851 /* Uncached accelerate windows registers */
852 #define LOONGARCH_CSR_UCAWIN		0x100
853 #define LOONGARCH_CSR_UCAWIN0_LO	0x102
854 #define LOONGARCH_CSR_UCAWIN0_HI	0x103
855 #define LOONGARCH_CSR_UCAWIN1_LO	0x104
856 #define LOONGARCH_CSR_UCAWIN1_HI	0x105
857 #define LOONGARCH_CSR_UCAWIN2_LO	0x106
858 #define LOONGARCH_CSR_UCAWIN2_HI	0x107
859 #define LOONGARCH_CSR_UCAWIN3_LO	0x108
860 #define LOONGARCH_CSR_UCAWIN3_HI	0x109
861 
862 /* Direct Map windows registers */
863 #define LOONGARCH_CSR_DMWIN0		0x180	/* 64 direct map win0: MEM & IF */
864 #define LOONGARCH_CSR_DMWIN1		0x181	/* 64 direct map win1: MEM & IF */
865 #define LOONGARCH_CSR_DMWIN2		0x182	/* 64 direct map win2: MEM */
866 #define LOONGARCH_CSR_DMWIN3		0x183	/* 64 direct map win3: MEM */
867 
868 /* Direct Map window 0/1 */
869 #define CSR_DMW0_PLV0		_CONST64_(1 << 0)
870 #define CSR_DMW0_VSEG		_CONST64_(0x8000)
871 #define CSR_DMW0_BASE		(CSR_DMW0_VSEG << DMW_PABITS)
872 #define CSR_DMW0_INIT		(CSR_DMW0_BASE | CSR_DMW0_PLV0)
873 
874 #define CSR_DMW1_PLV0		_CONST64_(1 << 0)
875 #define CSR_DMW1_MAT		_CONST64_(1 << 4)
876 #define CSR_DMW1_VSEG		_CONST64_(0x9000)
877 #define CSR_DMW1_BASE		(CSR_DMW1_VSEG << DMW_PABITS)
878 #define CSR_DMW1_INIT		(CSR_DMW1_BASE | CSR_DMW1_MAT | CSR_DMW1_PLV0)
879 
880 /* Performance Counter registers */
881 #define LOONGARCH_CSR_PERFCTRL0		0x200	/* 32 perf event 0 config */
882 #define LOONGARCH_CSR_PERFCNTR0		0x201	/* 64 perf event 0 count value */
883 #define LOONGARCH_CSR_PERFCTRL1		0x202	/* 32 perf event 1 config */
884 #define LOONGARCH_CSR_PERFCNTR1		0x203	/* 64 perf event 1 count value */
885 #define LOONGARCH_CSR_PERFCTRL2		0x204	/* 32 perf event 2 config */
886 #define LOONGARCH_CSR_PERFCNTR2		0x205	/* 64 perf event 2 count value */
887 #define LOONGARCH_CSR_PERFCTRL3		0x206	/* 32 perf event 3 config */
888 #define LOONGARCH_CSR_PERFCNTR3		0x207	/* 64 perf event 3 count value */
889 #define  CSR_PERFCTRL_PLV0		(_ULCAST_(1) << 16)
890 #define  CSR_PERFCTRL_PLV1		(_ULCAST_(1) << 17)
891 #define  CSR_PERFCTRL_PLV2		(_ULCAST_(1) << 18)
892 #define  CSR_PERFCTRL_PLV3		(_ULCAST_(1) << 19)
893 #define  CSR_PERFCTRL_IE		(_ULCAST_(1) << 20)
894 #define  CSR_PERFCTRL_EVENT		0x3ff
895 
896 /* Debug registers */
897 #define LOONGARCH_CSR_MWPC		0x300	/* data breakpoint config */
898 #define LOONGARCH_CSR_MWPS		0x301	/* data breakpoint status */
899 
900 #define LOONGARCH_CSR_DB0ADDR		0x310	/* data breakpoint 0 address */
901 #define LOONGARCH_CSR_DB0MASK		0x311	/* data breakpoint 0 mask */
902 #define LOONGARCH_CSR_DB0CTRL		0x312	/* data breakpoint 0 control */
903 #define LOONGARCH_CSR_DB0ASID		0x313	/* data breakpoint 0 asid */
904 
905 #define LOONGARCH_CSR_DB1ADDR		0x318	/* data breakpoint 1 address */
906 #define LOONGARCH_CSR_DB1MASK		0x319	/* data breakpoint 1 mask */
907 #define LOONGARCH_CSR_DB1CTRL		0x31a	/* data breakpoint 1 control */
908 #define LOONGARCH_CSR_DB1ASID		0x31b	/* data breakpoint 1 asid */
909 
910 #define LOONGARCH_CSR_DB2ADDR		0x320	/* data breakpoint 2 address */
911 #define LOONGARCH_CSR_DB2MASK		0x321	/* data breakpoint 2 mask */
912 #define LOONGARCH_CSR_DB2CTRL		0x322	/* data breakpoint 2 control */
913 #define LOONGARCH_CSR_DB2ASID		0x323	/* data breakpoint 2 asid */
914 
915 #define LOONGARCH_CSR_DB3ADDR		0x328	/* data breakpoint 3 address */
916 #define LOONGARCH_CSR_DB3MASK		0x329	/* data breakpoint 3 mask */
917 #define LOONGARCH_CSR_DB3CTRL		0x32a	/* data breakpoint 3 control */
918 #define LOONGARCH_CSR_DB3ASID		0x32b	/* data breakpoint 3 asid */
919 
920 #define LOONGARCH_CSR_DB4ADDR		0x330	/* data breakpoint 4 address */
921 #define LOONGARCH_CSR_DB4MASK		0x331	/* data breakpoint 4 maks */
922 #define LOONGARCH_CSR_DB4CTRL		0x332	/* data breakpoint 4 control */
923 #define LOONGARCH_CSR_DB4ASID		0x333	/* data breakpoint 4 asid */
924 
925 #define LOONGARCH_CSR_DB5ADDR		0x338	/* data breakpoint 5 address */
926 #define LOONGARCH_CSR_DB5MASK		0x339	/* data breakpoint 5 mask */
927 #define LOONGARCH_CSR_DB5CTRL		0x33a	/* data breakpoint 5 control */
928 #define LOONGARCH_CSR_DB5ASID		0x33b	/* data breakpoint 5 asid */
929 
930 #define LOONGARCH_CSR_DB6ADDR		0x340	/* data breakpoint 6 address */
931 #define LOONGARCH_CSR_DB6MASK		0x341	/* data breakpoint 6 mask */
932 #define LOONGARCH_CSR_DB6CTRL		0x342	/* data breakpoint 6 control */
933 #define LOONGARCH_CSR_DB6ASID		0x343	/* data breakpoint 6 asid */
934 
935 #define LOONGARCH_CSR_DB7ADDR		0x348	/* data breakpoint 7 address */
936 #define LOONGARCH_CSR_DB7MASK		0x349	/* data breakpoint 7 mask */
937 #define LOONGARCH_CSR_DB7CTRL		0x34a	/* data breakpoint 7 control */
938 #define LOONGARCH_CSR_DB7ASID		0x34b	/* data breakpoint 7 asid */
939 
940 #define LOONGARCH_CSR_FWPC		0x380	/* instruction breakpoint config */
941 #define LOONGARCH_CSR_FWPS		0x381	/* instruction breakpoint status */
942 
943 #define LOONGARCH_CSR_IB0ADDR		0x390	/* inst breakpoint 0 address */
944 #define LOONGARCH_CSR_IB0MASK		0x391	/* inst breakpoint 0 mask */
945 #define LOONGARCH_CSR_IB0CTRL		0x392	/* inst breakpoint 0 control */
946 #define LOONGARCH_CSR_IB0ASID		0x393	/* inst breakpoint 0 asid */
947 
948 #define LOONGARCH_CSR_IB1ADDR		0x398	/* inst breakpoint 1 address */
949 #define LOONGARCH_CSR_IB1MASK		0x399	/* inst breakpoint 1 mask */
950 #define LOONGARCH_CSR_IB1CTRL		0x39a	/* inst breakpoint 1 control */
951 #define LOONGARCH_CSR_IB1ASID		0x39b	/* inst breakpoint 1 asid */
952 
953 #define LOONGARCH_CSR_IB2ADDR		0x3a0	/* inst breakpoint 2 address */
954 #define LOONGARCH_CSR_IB2MASK		0x3a1	/* inst breakpoint 2 mask */
955 #define LOONGARCH_CSR_IB2CTRL		0x3a2	/* inst breakpoint 2 control */
956 #define LOONGARCH_CSR_IB2ASID		0x3a3	/* inst breakpoint 2 asid */
957 
958 #define LOONGARCH_CSR_IB3ADDR		0x3a8	/* inst breakpoint 3 address */
959 #define LOONGARCH_CSR_IB3MASK		0x3a9	/* breakpoint 3 mask */
960 #define LOONGARCH_CSR_IB3CTRL		0x3aa	/* inst breakpoint 3 control */
961 #define LOONGARCH_CSR_IB3ASID		0x3ab	/* inst breakpoint 3 asid */
962 
963 #define LOONGARCH_CSR_IB4ADDR		0x3b0	/* inst breakpoint 4 address */
964 #define LOONGARCH_CSR_IB4MASK		0x3b1	/* inst breakpoint 4 mask */
965 #define LOONGARCH_CSR_IB4CTRL		0x3b2	/* inst breakpoint 4 control */
966 #define LOONGARCH_CSR_IB4ASID		0x3b3	/* inst breakpoint 4 asid */
967 
968 #define LOONGARCH_CSR_IB5ADDR		0x3b8	/* inst breakpoint 5 address */
969 #define LOONGARCH_CSR_IB5MASK		0x3b9	/* inst breakpoint 5 mask */
970 #define LOONGARCH_CSR_IB5CTRL		0x3ba	/* inst breakpoint 5 control */
971 #define LOONGARCH_CSR_IB5ASID		0x3bb	/* inst breakpoint 5 asid */
972 
973 #define LOONGARCH_CSR_IB6ADDR		0x3c0	/* inst breakpoint 6 address */
974 #define LOONGARCH_CSR_IB6MASK		0x3c1	/* inst breakpoint 6 mask */
975 #define LOONGARCH_CSR_IB6CTRL		0x3c2	/* inst breakpoint 6 control */
976 #define LOONGARCH_CSR_IB6ASID		0x3c3	/* inst breakpoint 6 asid */
977 
978 #define LOONGARCH_CSR_IB7ADDR		0x3c8	/* inst breakpoint 7 address */
979 #define LOONGARCH_CSR_IB7MASK		0x3c9	/* inst breakpoint 7 mask */
980 #define LOONGARCH_CSR_IB7CTRL		0x3ca	/* inst breakpoint 7 control */
981 #define LOONGARCH_CSR_IB7ASID		0x3cb	/* inst breakpoint 7 asid */
982 
983 #define LOONGARCH_CSR_DEBUG		0x500	/* debug config */
984 #define LOONGARCH_CSR_DERA		0x501	/* debug era */
985 #define LOONGARCH_CSR_DESAVE		0x502	/* debug save */
986 
987 #define CSR_FWPC_SKIP_SHIFT		16
988 #define CSR_FWPC_SKIP			(_ULCAST_(1) << CSR_FWPC_SKIP_SHIFT)
989 
990 /*
991  * CSR_ECFG IM
992  */
993 #define ECFG0_IM		0x00001fff
994 #define ECFGB_SIP0		0
995 #define ECFGF_SIP0		(_ULCAST_(1) << ECFGB_SIP0)
996 #define ECFGB_SIP1		1
997 #define ECFGF_SIP1		(_ULCAST_(1) << ECFGB_SIP1)
998 #define ECFGB_IP0		2
999 #define ECFGF_IP0		(_ULCAST_(1) << ECFGB_IP0)
1000 #define ECFGB_IP1		3
1001 #define ECFGF_IP1		(_ULCAST_(1) << ECFGB_IP1)
1002 #define ECFGB_IP2		4
1003 #define ECFGF_IP2		(_ULCAST_(1) << ECFGB_IP2)
1004 #define ECFGB_IP3		5
1005 #define ECFGF_IP3		(_ULCAST_(1) << ECFGB_IP3)
1006 #define ECFGB_IP4		6
1007 #define ECFGF_IP4		(_ULCAST_(1) << ECFGB_IP4)
1008 #define ECFGB_IP5		7
1009 #define ECFGF_IP5		(_ULCAST_(1) << ECFGB_IP5)
1010 #define ECFGB_IP6		8
1011 #define ECFGF_IP6		(_ULCAST_(1) << ECFGB_IP6)
1012 #define ECFGB_IP7		9
1013 #define ECFGF_IP7		(_ULCAST_(1) << ECFGB_IP7)
1014 #define ECFGB_PMC		10
1015 #define ECFGF_PMC		(_ULCAST_(1) << ECFGB_PMC)
1016 #define ECFGB_TIMER		11
1017 #define ECFGF_TIMER		(_ULCAST_(1) << ECFGB_TIMER)
1018 #define ECFGB_IPI		12
1019 #define ECFGF_IPI		(_ULCAST_(1) << ECFGB_IPI)
1020 #define ECFGF(hwirq)		(_ULCAST_(1) << hwirq)
1021 
1022 #define ESTATF_IP		0x00003fff
1023 
1024 #define LOONGARCH_IOCSR_FEATURES	0x8
1025 #define  IOCSRF_TEMP			BIT_ULL(0)
1026 #define  IOCSRF_NODECNT			BIT_ULL(1)
1027 #define  IOCSRF_MSI			BIT_ULL(2)
1028 #define  IOCSRF_EXTIOI			BIT_ULL(3)
1029 #define  IOCSRF_CSRIPI			BIT_ULL(4)
1030 #define  IOCSRF_FREQCSR			BIT_ULL(5)
1031 #define  IOCSRF_FREQSCALE		BIT_ULL(6)
1032 #define  IOCSRF_DVFSV1			BIT_ULL(7)
1033 #define  IOCSRF_EIODECODE		BIT_ULL(9)
1034 #define  IOCSRF_FLATMODE		BIT_ULL(10)
1035 #define  IOCSRF_VM			BIT_ULL(11)
1036 
1037 #define LOONGARCH_IOCSR_VENDOR		0x10
1038 
1039 #define LOONGARCH_IOCSR_CPUNAME		0x20
1040 
1041 #define LOONGARCH_IOCSR_NODECNT		0x408
1042 
1043 #define LOONGARCH_IOCSR_MISC_FUNC	0x420
1044 #define  IOCSR_MISC_FUNC_TIMER_RESET	BIT_ULL(21)
1045 #define  IOCSR_MISC_FUNC_EXT_IOI_EN	BIT_ULL(48)
1046 
1047 #define LOONGARCH_IOCSR_CPUTEMP		0x428
1048 
1049 /* PerCore CSR, only accessible by local cores */
1050 #define LOONGARCH_IOCSR_IPI_STATUS	0x1000
1051 #define LOONGARCH_IOCSR_IPI_EN		0x1004
1052 #define LOONGARCH_IOCSR_IPI_SET		0x1008
1053 #define LOONGARCH_IOCSR_IPI_CLEAR	0x100c
1054 #define LOONGARCH_IOCSR_MBUF0		0x1020
1055 #define LOONGARCH_IOCSR_MBUF1		0x1028
1056 #define LOONGARCH_IOCSR_MBUF2		0x1030
1057 #define LOONGARCH_IOCSR_MBUF3		0x1038
1058 
1059 #define LOONGARCH_IOCSR_IPI_SEND	0x1040
1060 #define  IOCSR_IPI_SEND_IP_SHIFT	0
1061 #define  IOCSR_IPI_SEND_CPU_SHIFT	16
1062 #define  IOCSR_IPI_SEND_BLOCKING	BIT(31)
1063 
1064 #define LOONGARCH_IOCSR_MBUF_SEND	0x1048
1065 #define  IOCSR_MBUF_SEND_BLOCKING	BIT_ULL(31)
1066 #define  IOCSR_MBUF_SEND_BOX_SHIFT	2
1067 #define  IOCSR_MBUF_SEND_BOX_LO(box)	(box << 1)
1068 #define  IOCSR_MBUF_SEND_BOX_HI(box)	((box << 1) + 1)
1069 #define  IOCSR_MBUF_SEND_CPU_SHIFT	16
1070 #define  IOCSR_MBUF_SEND_BUF_SHIFT	32
1071 #define  IOCSR_MBUF_SEND_H32_MASK	0xFFFFFFFF00000000ULL
1072 
1073 #define LOONGARCH_IOCSR_ANY_SEND	0x1158
1074 #define  IOCSR_ANY_SEND_BLOCKING	BIT_ULL(31)
1075 #define  IOCSR_ANY_SEND_CPU_SHIFT	16
1076 #define  IOCSR_ANY_SEND_MASK_SHIFT	27
1077 #define  IOCSR_ANY_SEND_BUF_SHIFT	32
1078 #define  IOCSR_ANY_SEND_H32_MASK	0xFFFFFFFF00000000ULL
1079 
1080 /* Register offset and bit definition for CSR access */
1081 #define LOONGARCH_IOCSR_TIMER_CFG       0x1060
1082 #define LOONGARCH_IOCSR_TIMER_TICK      0x1070
1083 #define  IOCSR_TIMER_CFG_RESERVED       (_ULCAST_(1) << 63)
1084 #define  IOCSR_TIMER_CFG_PERIODIC       (_ULCAST_(1) << 62)
1085 #define  IOCSR_TIMER_CFG_EN             (_ULCAST_(1) << 61)
1086 #define  IOCSR_TIMER_MASK		0x0ffffffffffffULL
1087 #define  IOCSR_TIMER_INITVAL_RST        (_ULCAST_(0xffff) << 48)
1088 
1089 #define LOONGARCH_IOCSR_EXTIOI_NODEMAP_BASE	0x14a0
1090 #define LOONGARCH_IOCSR_EXTIOI_IPMAP_BASE	0x14c0
1091 #define LOONGARCH_IOCSR_EXTIOI_EN_BASE		0x1600
1092 #define LOONGARCH_IOCSR_EXTIOI_BOUNCE_BASE	0x1680
1093 #define LOONGARCH_IOCSR_EXTIOI_ISR_BASE		0x1800
1094 #define LOONGARCH_IOCSR_EXTIOI_ROUTE_BASE	0x1c00
1095 #define IOCSR_EXTIOI_VECTOR_NUM			256
1096 
1097 #ifndef __ASSEMBLY__
1098 
1099 static __always_inline u64 drdtime(void)
1100 {
1101 	int rID = 0;
1102 	u64 val = 0;
1103 
1104 	__asm__ __volatile__(
1105 		"rdtime.d %0, %1 \n\t"
1106 		: "=r"(val), "=r"(rID)
1107 		:
1108 		);
1109 	return val;
1110 }
1111 
1112 static inline unsigned int get_csr_cpuid(void)
1113 {
1114 	return csr_read32(LOONGARCH_CSR_CPUID);
1115 }
1116 
1117 static inline void csr_any_send(unsigned int addr, unsigned int data,
1118 				unsigned int data_mask, unsigned int cpu)
1119 {
1120 	uint64_t val = 0;
1121 
1122 	val = IOCSR_ANY_SEND_BLOCKING | addr;
1123 	val |= (cpu << IOCSR_ANY_SEND_CPU_SHIFT);
1124 	val |= (data_mask << IOCSR_ANY_SEND_MASK_SHIFT);
1125 	val |= ((uint64_t)data << IOCSR_ANY_SEND_BUF_SHIFT);
1126 	iocsr_write64(val, LOONGARCH_IOCSR_ANY_SEND);
1127 }
1128 
1129 static inline unsigned int read_csr_excode(void)
1130 {
1131 	return (csr_read32(LOONGARCH_CSR_ESTAT) & CSR_ESTAT_EXC) >> CSR_ESTAT_EXC_SHIFT;
1132 }
1133 
1134 static inline void write_csr_index(unsigned int idx)
1135 {
1136 	csr_xchg32(idx, CSR_TLBIDX_IDXM, LOONGARCH_CSR_TLBIDX);
1137 }
1138 
1139 static inline unsigned int read_csr_pagesize(void)
1140 {
1141 	return (csr_read32(LOONGARCH_CSR_TLBIDX) & CSR_TLBIDX_SIZEM) >> CSR_TLBIDX_SIZE;
1142 }
1143 
1144 static inline void write_csr_pagesize(unsigned int size)
1145 {
1146 	csr_xchg32(size << CSR_TLBIDX_SIZE, CSR_TLBIDX_SIZEM, LOONGARCH_CSR_TLBIDX);
1147 }
1148 
1149 static inline unsigned int read_csr_tlbrefill_pagesize(void)
1150 {
1151 	return (csr_read64(LOONGARCH_CSR_TLBREHI) & CSR_TLBREHI_PS) >> CSR_TLBREHI_PS_SHIFT;
1152 }
1153 
1154 static inline void write_csr_tlbrefill_pagesize(unsigned int size)
1155 {
1156 	csr_xchg64(size << CSR_TLBREHI_PS_SHIFT, CSR_TLBREHI_PS, LOONGARCH_CSR_TLBREHI);
1157 }
1158 
1159 #define read_csr_asid()			csr_read32(LOONGARCH_CSR_ASID)
1160 #define write_csr_asid(val)		csr_write32(val, LOONGARCH_CSR_ASID)
1161 #define read_csr_entryhi()		csr_read64(LOONGARCH_CSR_TLBEHI)
1162 #define write_csr_entryhi(val)		csr_write64(val, LOONGARCH_CSR_TLBEHI)
1163 #define read_csr_entrylo0()		csr_read64(LOONGARCH_CSR_TLBELO0)
1164 #define write_csr_entrylo0(val)		csr_write64(val, LOONGARCH_CSR_TLBELO0)
1165 #define read_csr_entrylo1()		csr_read64(LOONGARCH_CSR_TLBELO1)
1166 #define write_csr_entrylo1(val)		csr_write64(val, LOONGARCH_CSR_TLBELO1)
1167 #define read_csr_ecfg()			csr_read32(LOONGARCH_CSR_ECFG)
1168 #define write_csr_ecfg(val)		csr_write32(val, LOONGARCH_CSR_ECFG)
1169 #define read_csr_estat()		csr_read32(LOONGARCH_CSR_ESTAT)
1170 #define write_csr_estat(val)		csr_write32(val, LOONGARCH_CSR_ESTAT)
1171 #define read_csr_tlbidx()		csr_read32(LOONGARCH_CSR_TLBIDX)
1172 #define write_csr_tlbidx(val)		csr_write32(val, LOONGARCH_CSR_TLBIDX)
1173 #define read_csr_euen()			csr_read32(LOONGARCH_CSR_EUEN)
1174 #define write_csr_euen(val)		csr_write32(val, LOONGARCH_CSR_EUEN)
1175 #define read_csr_cpuid()		csr_read32(LOONGARCH_CSR_CPUID)
1176 #define read_csr_prcfg1()		csr_read64(LOONGARCH_CSR_PRCFG1)
1177 #define write_csr_prcfg1(val)		csr_write64(val, LOONGARCH_CSR_PRCFG1)
1178 #define read_csr_prcfg2()		csr_read64(LOONGARCH_CSR_PRCFG2)
1179 #define write_csr_prcfg2(val)		csr_write64(val, LOONGARCH_CSR_PRCFG2)
1180 #define read_csr_prcfg3()		csr_read64(LOONGARCH_CSR_PRCFG3)
1181 #define write_csr_prcfg3(val)		csr_write64(val, LOONGARCH_CSR_PRCFG3)
1182 #define read_csr_stlbpgsize()		csr_read32(LOONGARCH_CSR_STLBPGSIZE)
1183 #define write_csr_stlbpgsize(val)	csr_write32(val, LOONGARCH_CSR_STLBPGSIZE)
1184 #define read_csr_rvacfg()		csr_read32(LOONGARCH_CSR_RVACFG)
1185 #define write_csr_rvacfg(val)		csr_write32(val, LOONGARCH_CSR_RVACFG)
1186 #define write_csr_tintclear(val)	csr_write32(val, LOONGARCH_CSR_TINTCLR)
1187 #define read_csr_impctl1()		csr_read64(LOONGARCH_CSR_IMPCTL1)
1188 #define write_csr_impctl1(val)		csr_write64(val, LOONGARCH_CSR_IMPCTL1)
1189 #define write_csr_impctl2(val)		csr_write64(val, LOONGARCH_CSR_IMPCTL2)
1190 
1191 #define read_csr_perfctrl0()		csr_read64(LOONGARCH_CSR_PERFCTRL0)
1192 #define read_csr_perfcntr0()		csr_read64(LOONGARCH_CSR_PERFCNTR0)
1193 #define read_csr_perfctrl1()		csr_read64(LOONGARCH_CSR_PERFCTRL1)
1194 #define read_csr_perfcntr1()		csr_read64(LOONGARCH_CSR_PERFCNTR1)
1195 #define read_csr_perfctrl2()		csr_read64(LOONGARCH_CSR_PERFCTRL2)
1196 #define read_csr_perfcntr2()		csr_read64(LOONGARCH_CSR_PERFCNTR2)
1197 #define read_csr_perfctrl3()		csr_read64(LOONGARCH_CSR_PERFCTRL3)
1198 #define read_csr_perfcntr3()		csr_read64(LOONGARCH_CSR_PERFCNTR3)
1199 #define write_csr_perfctrl0(val)	csr_write64(val, LOONGARCH_CSR_PERFCTRL0)
1200 #define write_csr_perfcntr0(val)	csr_write64(val, LOONGARCH_CSR_PERFCNTR0)
1201 #define write_csr_perfctrl1(val)	csr_write64(val, LOONGARCH_CSR_PERFCTRL1)
1202 #define write_csr_perfcntr1(val)	csr_write64(val, LOONGARCH_CSR_PERFCNTR1)
1203 #define write_csr_perfctrl2(val)	csr_write64(val, LOONGARCH_CSR_PERFCTRL2)
1204 #define write_csr_perfcntr2(val)	csr_write64(val, LOONGARCH_CSR_PERFCNTR2)
1205 #define write_csr_perfctrl3(val)	csr_write64(val, LOONGARCH_CSR_PERFCTRL3)
1206 #define write_csr_perfcntr3(val)	csr_write64(val, LOONGARCH_CSR_PERFCNTR3)
1207 
1208 /*
1209  * Manipulate bits in a register.
1210  */
1211 #define __BUILD_CSR_COMMON(name)				\
1212 static inline unsigned long					\
1213 set_##name(unsigned long set)					\
1214 {								\
1215 	unsigned long res, new;					\
1216 								\
1217 	res = read_##name();					\
1218 	new = res | set;					\
1219 	write_##name(new);					\
1220 								\
1221 	return res;						\
1222 }								\
1223 								\
1224 static inline unsigned long					\
1225 clear_##name(unsigned long clear)				\
1226 {								\
1227 	unsigned long res, new;					\
1228 								\
1229 	res = read_##name();					\
1230 	new = res & ~clear;					\
1231 	write_##name(new);					\
1232 								\
1233 	return res;						\
1234 }								\
1235 								\
1236 static inline unsigned long					\
1237 change_##name(unsigned long change, unsigned long val)		\
1238 {								\
1239 	unsigned long res, new;					\
1240 								\
1241 	res = read_##name();					\
1242 	new = res & ~change;					\
1243 	new |= (val & change);					\
1244 	write_##name(new);					\
1245 								\
1246 	return res;						\
1247 }
1248 
1249 #define __BUILD_CSR_OP(name)	__BUILD_CSR_COMMON(csr_##name)
1250 
1251 __BUILD_CSR_OP(euen)
1252 __BUILD_CSR_OP(ecfg)
1253 __BUILD_CSR_OP(tlbidx)
1254 
1255 #define set_csr_estat(val)	\
1256 	csr_xchg32(val, val, LOONGARCH_CSR_ESTAT)
1257 #define clear_csr_estat(val)	\
1258 	csr_xchg32(~(val), val, LOONGARCH_CSR_ESTAT)
1259 
1260 #endif /* __ASSEMBLY__ */
1261 
1262 /* Generic EntryLo bit definitions */
1263 #define ENTRYLO_V		(_ULCAST_(1) << 0)
1264 #define ENTRYLO_D		(_ULCAST_(1) << 1)
1265 #define ENTRYLO_PLV_SHIFT	2
1266 #define ENTRYLO_PLV		(_ULCAST_(3) << ENTRYLO_PLV_SHIFT)
1267 #define ENTRYLO_C_SHIFT		4
1268 #define ENTRYLO_C		(_ULCAST_(3) << ENTRYLO_C_SHIFT)
1269 #define ENTRYLO_G		(_ULCAST_(1) << 6)
1270 #define ENTRYLO_NR		(_ULCAST_(1) << 61)
1271 #define ENTRYLO_NX		(_ULCAST_(1) << 62)
1272 
1273 /* Values for PageSize register */
1274 #define PS_4K		0x0000000c
1275 #define PS_8K		0x0000000d
1276 #define PS_16K		0x0000000e
1277 #define PS_32K		0x0000000f
1278 #define PS_64K		0x00000010
1279 #define PS_128K		0x00000011
1280 #define PS_256K		0x00000012
1281 #define PS_512K		0x00000013
1282 #define PS_1M		0x00000014
1283 #define PS_2M		0x00000015
1284 #define PS_4M		0x00000016
1285 #define PS_8M		0x00000017
1286 #define PS_16M		0x00000018
1287 #define PS_32M		0x00000019
1288 #define PS_64M		0x0000001a
1289 #define PS_128M		0x0000001b
1290 #define PS_256M		0x0000001c
1291 #define PS_512M		0x0000001d
1292 #define PS_1G		0x0000001e
1293 
1294 /* Default page size for a given kernel configuration */
1295 #ifdef CONFIG_PAGE_SIZE_4KB
1296 #define PS_DEFAULT_SIZE PS_4K
1297 #elif defined(CONFIG_PAGE_SIZE_16KB)
1298 #define PS_DEFAULT_SIZE PS_16K
1299 #elif defined(CONFIG_PAGE_SIZE_64KB)
1300 #define PS_DEFAULT_SIZE PS_64K
1301 #else
1302 #error Bad page size configuration!
1303 #endif
1304 
1305 /* Default huge tlb size for a given kernel configuration */
1306 #ifdef CONFIG_PAGE_SIZE_4KB
1307 #define PS_HUGE_SIZE   PS_1M
1308 #elif defined(CONFIG_PAGE_SIZE_16KB)
1309 #define PS_HUGE_SIZE   PS_16M
1310 #elif defined(CONFIG_PAGE_SIZE_64KB)
1311 #define PS_HUGE_SIZE   PS_256M
1312 #else
1313 #error Bad page size configuration for hugetlbfs!
1314 #endif
1315 
1316 /* ExStatus.ExcCode */
1317 #define EXCCODE_RSV		0	/* Reserved */
1318 #define EXCCODE_TLBL		1	/* TLB miss on a load */
1319 #define EXCCODE_TLBS		2	/* TLB miss on a store */
1320 #define EXCCODE_TLBI		3	/* TLB miss on a ifetch */
1321 #define EXCCODE_TLBM		4	/* TLB modified fault */
1322 #define EXCCODE_TLBNR		5	/* TLB Read-Inhibit exception */
1323 #define EXCCODE_TLBNX		6	/* TLB Execution-Inhibit exception */
1324 #define EXCCODE_TLBPE		7	/* TLB Privilege Error */
1325 #define EXCCODE_ADE		8	/* Address Error */
1326 	#define EXSUBCODE_ADEF		0	/* Fetch Instruction */
1327 	#define EXSUBCODE_ADEM		1	/* Access Memory*/
1328 #define EXCCODE_ALE		9	/* Unalign Access */
1329 #define EXCCODE_BCE		10	/* Bounds Check Error */
1330 #define EXCCODE_SYS		11	/* System call */
1331 #define EXCCODE_BP		12	/* Breakpoint */
1332 #define EXCCODE_INE		13	/* Inst. Not Exist */
1333 #define EXCCODE_IPE		14	/* Inst. Privileged Error */
1334 #define EXCCODE_FPDIS		15	/* FPU Disabled */
1335 #define EXCCODE_LSXDIS		16	/* LSX Disabled */
1336 #define EXCCODE_LASXDIS		17	/* LASX Disabled */
1337 #define EXCCODE_FPE		18	/* Floating Point Exception */
1338 	#define EXCSUBCODE_FPE		0	/* Floating Point Exception */
1339 	#define EXCSUBCODE_VFPE		1	/* Vector Exception */
1340 #define EXCCODE_WATCH		19	/* WatchPoint Exception */
1341 	#define EXCSUBCODE_WPEF		0	/* ... on Instruction Fetch */
1342 	#define EXCSUBCODE_WPEM		1	/* ... on Memory Accesses */
1343 #define EXCCODE_BTDIS		20	/* Binary Trans. Disabled */
1344 #define EXCCODE_BTE		21	/* Binary Trans. Exception */
1345 #define EXCCODE_GSPR		22	/* Guest Privileged Error */
1346 #define EXCCODE_HVC		23	/* Hypercall */
1347 #define EXCCODE_GCM		24	/* Guest CSR modified */
1348 	#define EXCSUBCODE_GCSC		0	/* Software caused */
1349 	#define EXCSUBCODE_GCHC		1	/* Hardware caused */
1350 #define EXCCODE_SE		25	/* Security */
1351 
1352 /* Interrupt numbers */
1353 #define INT_SWI0	0	/* Software Interrupts */
1354 #define INT_SWI1	1
1355 #define INT_HWI0	2	/* Hardware Interrupts */
1356 #define INT_HWI1	3
1357 #define INT_HWI2	4
1358 #define INT_HWI3	5
1359 #define INT_HWI4	6
1360 #define INT_HWI5	7
1361 #define INT_HWI6	8
1362 #define INT_HWI7	9
1363 #define INT_PCOV	10	/* Performance Counter Overflow */
1364 #define INT_TI		11	/* Timer */
1365 #define INT_IPI		12
1366 #define INT_NMI		13
1367 
1368 /* ExcCodes corresponding to interrupts */
1369 #define EXCCODE_INT_NUM		(INT_NMI + 1)
1370 #define EXCCODE_INT_START	64
1371 #define EXCCODE_INT_END		(EXCCODE_INT_START + EXCCODE_INT_NUM - 1)
1372 
1373 /* FPU Status Register Names */
1374 #ifndef CONFIG_AS_HAS_FCSR_CLASS
1375 #define LOONGARCH_FCSR0	$r0
1376 #define LOONGARCH_FCSR1	$r1
1377 #define LOONGARCH_FCSR2	$r2
1378 #define LOONGARCH_FCSR3	$r3
1379 #else
1380 #define LOONGARCH_FCSR0	$fcsr0
1381 #define LOONGARCH_FCSR1	$fcsr1
1382 #define LOONGARCH_FCSR2	$fcsr2
1383 #define LOONGARCH_FCSR3	$fcsr3
1384 #endif
1385 
1386 /* FPU Status Register Values */
1387 #define FPU_CSR_RSVD	0xe0e0fce0
1388 
1389 /*
1390  * X the exception cause indicator
1391  * E the exception enable
1392  * S the sticky/flag bit
1393  */
1394 #define FPU_CSR_ALL_X	0x1f000000
1395 #define FPU_CSR_INV_X	0x10000000
1396 #define FPU_CSR_DIV_X	0x08000000
1397 #define FPU_CSR_OVF_X	0x04000000
1398 #define FPU_CSR_UDF_X	0x02000000
1399 #define FPU_CSR_INE_X	0x01000000
1400 
1401 #define FPU_CSR_ALL_S	0x001f0000
1402 #define FPU_CSR_INV_S	0x00100000
1403 #define FPU_CSR_DIV_S	0x00080000
1404 #define FPU_CSR_OVF_S	0x00040000
1405 #define FPU_CSR_UDF_S	0x00020000
1406 #define FPU_CSR_INE_S	0x00010000
1407 
1408 #define FPU_CSR_ALL_E	0x0000001f
1409 #define FPU_CSR_INV_E	0x00000010
1410 #define FPU_CSR_DIV_E	0x00000008
1411 #define FPU_CSR_OVF_E	0x00000004
1412 #define FPU_CSR_UDF_E	0x00000002
1413 #define FPU_CSR_INE_E	0x00000001
1414 
1415 /* Bits 8 and 9 of FPU Status Register specify the rounding mode */
1416 #define FPU_CSR_RM	0x300
1417 #define FPU_CSR_RN	0x000	/* nearest */
1418 #define FPU_CSR_RZ	0x100	/* towards zero */
1419 #define FPU_CSR_RU	0x200	/* towards +Infinity */
1420 #define FPU_CSR_RD	0x300	/* towards -Infinity */
1421 
1422 /* Bit 6 of FPU Status Register specify the LBT TOP simulation mode */
1423 #define FPU_CSR_TM_SHIFT	0x6
1424 #define FPU_CSR_TM		(_ULCAST_(1) << FPU_CSR_TM_SHIFT)
1425 
1426 #define read_fcsr(source)	\
1427 ({	\
1428 	unsigned int __res;	\
1429 \
1430 	__asm__ __volatile__(	\
1431 	"	movfcsr2gr	%0, "__stringify(source)" \n"	\
1432 	: "=r" (__res));	\
1433 	__res;	\
1434 })
1435 
1436 #define write_fcsr(dest, val) \
1437 do {	\
1438 	__asm__ __volatile__(	\
1439 	"	movgr2fcsr	"__stringify(dest)", %0	\n"	\
1440 	: : "r" (val));	\
1441 } while (0)
1442 
1443 #endif /* _ASM_LOONGARCH_H */
1444