1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Macros for accessing system registers with older binutils.
5 * Copyright (C) 2014 ARM Ltd.
6 * Author: Catalin Marinas <catalin.marinas@arm.com>
10 #define __ASM_SYSREG_H
12 #include <linux/bits.h>
13 #include <linux/stringify.h>
14 #include <linux/kasan-tags.h>
16 #include <asm/gpr-num.h>
19 * ARMv8 ARM reserves the following encoding for system registers:
20 * (Ref: ARMv8 ARM, Section: "System instruction class encoding overview",
21 * C5.2, version:ARM DDI 0487A.f)
39 #define sys_reg(op0, op1, crn, crm, op2) \
40 (((op0) << Op0_shift) | ((op1) << Op1_shift) | \
41 ((crn) << CRn_shift) | ((crm) << CRm_shift) | \
44 #define sys_insn sys_reg
46 #define sys_reg_Op0(id) (((id) >> Op0_shift) & Op0_mask)
47 #define sys_reg_Op1(id) (((id) >> Op1_shift) & Op1_mask)
48 #define sys_reg_CRn(id) (((id) >> CRn_shift) & CRn_mask)
49 #define sys_reg_CRm(id) (((id) >> CRm_shift) & CRm_mask)
50 #define sys_reg_Op2(id) (((id) >> Op2_shift) & Op2_mask)
52 #ifndef CONFIG_BROKEN_GAS_INST
55 // The space separator is omitted so that __emit_inst(x) can be parsed as
56 // either an assembler directive or an assembler macro argument.
57 #define __emit_inst(x) .inst(x)
59 #define __emit_inst(x) ".inst " __stringify((x)) "\n\t"
62 #else /* CONFIG_BROKEN_GAS_INST */
64 #ifndef CONFIG_CPU_BIG_ENDIAN
65 #define __INSTR_BSWAP(x) (x)
66 #else /* CONFIG_CPU_BIG_ENDIAN */
67 #define __INSTR_BSWAP(x) ((((x) << 24) & 0xff000000) | \
68 (((x) << 8) & 0x00ff0000) | \
69 (((x) >> 8) & 0x0000ff00) | \
70 (((x) >> 24) & 0x000000ff))
71 #endif /* CONFIG_CPU_BIG_ENDIAN */
74 #define __emit_inst(x) .long __INSTR_BSWAP(x)
75 #else /* __ASSEMBLY__ */
76 #define __emit_inst(x) ".long " __stringify(__INSTR_BSWAP(x)) "\n\t"
77 #endif /* __ASSEMBLY__ */
79 #endif /* CONFIG_BROKEN_GAS_INST */
82 * Instructions for modifying PSTATE fields.
83 * As per Arm ARM for v8-A, Section "C.5.1.3 op0 == 0b00, architectural hints,
84 * barriers and CLREX, and PSTATE access", ARM DDI 0487 C.a, system instructions
85 * for accessing PSTATE fields have the following encoding:
87 * Op1, Op2 encodes the PSTATE field modified and defines the constraints.
88 * CRm = Imm4 for the instruction.
91 #define pstate_field(op1, op2) ((op1) << Op1_shift | (op2) << Op2_shift)
92 #define PSTATE_Imm_shift CRm_shift
94 #define PSTATE_PAN pstate_field(0, 4)
95 #define PSTATE_UAO pstate_field(0, 3)
96 #define PSTATE_SSBS pstate_field(3, 1)
97 #define PSTATE_TCO pstate_field(3, 4)
99 #define SET_PSTATE_PAN(x) __emit_inst(0xd500401f | PSTATE_PAN | ((!!x) << PSTATE_Imm_shift))
100 #define SET_PSTATE_UAO(x) __emit_inst(0xd500401f | PSTATE_UAO | ((!!x) << PSTATE_Imm_shift))
101 #define SET_PSTATE_SSBS(x) __emit_inst(0xd500401f | PSTATE_SSBS | ((!!x) << PSTATE_Imm_shift))
102 #define SET_PSTATE_TCO(x) __emit_inst(0xd500401f | PSTATE_TCO | ((!!x) << PSTATE_Imm_shift))
104 #define set_pstate_pan(x) asm volatile(SET_PSTATE_PAN(x))
105 #define set_pstate_uao(x) asm volatile(SET_PSTATE_UAO(x))
106 #define set_pstate_ssbs(x) asm volatile(SET_PSTATE_SSBS(x))
108 #define __SYS_BARRIER_INSN(CRm, op2, Rt) \
109 __emit_inst(0xd5000000 | sys_insn(0, 3, 3, (CRm), (op2)) | ((Rt) & 0x1f))
111 #define SB_BARRIER_INSN __SYS_BARRIER_INSN(0, 7, 31)
113 #define SYS_DC_ISW sys_insn(1, 0, 7, 6, 2)
114 #define SYS_DC_CSW sys_insn(1, 0, 7, 10, 2)
115 #define SYS_DC_CISW sys_insn(1, 0, 7, 14, 2)
118 * Automatically generated definitions for system registers, the
119 * manual encodings below are in the process of being converted to
120 * come from here. The header relies on the definition of sys_reg()
121 * earlier in this file.
123 #include "asm/sysreg-defs.h"
126 * System registers, organised loosely by encoding but grouped together
127 * where the architected name contains an index. e.g. ID_MMFR<n>_EL1.
129 #define SYS_SVCR_SMSTOP_SM_EL0 sys_reg(0, 3, 4, 2, 3)
130 #define SYS_SVCR_SMSTART_SM_EL0 sys_reg(0, 3, 4, 3, 3)
131 #define SYS_SVCR_SMSTOP_SMZA_EL0 sys_reg(0, 3, 4, 6, 3)
133 #define SYS_OSDTRRX_EL1 sys_reg(2, 0, 0, 0, 2)
134 #define SYS_MDCCINT_EL1 sys_reg(2, 0, 0, 2, 0)
135 #define SYS_MDSCR_EL1 sys_reg(2, 0, 0, 2, 2)
136 #define SYS_OSDTRTX_EL1 sys_reg(2, 0, 0, 3, 2)
137 #define SYS_OSECCR_EL1 sys_reg(2, 0, 0, 6, 2)
138 #define SYS_DBGBVRn_EL1(n) sys_reg(2, 0, 0, n, 4)
139 #define SYS_DBGBCRn_EL1(n) sys_reg(2, 0, 0, n, 5)
140 #define SYS_DBGWVRn_EL1(n) sys_reg(2, 0, 0, n, 6)
141 #define SYS_DBGWCRn_EL1(n) sys_reg(2, 0, 0, n, 7)
142 #define SYS_MDRAR_EL1 sys_reg(2, 0, 1, 0, 0)
144 #define SYS_OSLAR_EL1 sys_reg(2, 0, 1, 0, 4)
145 #define SYS_OSLAR_OSLK BIT(0)
147 #define SYS_OSLSR_EL1 sys_reg(2, 0, 1, 1, 4)
148 #define SYS_OSLSR_OSLM_MASK (BIT(3) | BIT(0))
149 #define SYS_OSLSR_OSLM_NI 0
150 #define SYS_OSLSR_OSLM_IMPLEMENTED BIT(3)
151 #define SYS_OSLSR_OSLK BIT(1)
153 #define SYS_OSDLR_EL1 sys_reg(2, 0, 1, 3, 4)
154 #define SYS_DBGPRCR_EL1 sys_reg(2, 0, 1, 4, 4)
155 #define SYS_DBGCLAIMSET_EL1 sys_reg(2, 0, 7, 8, 6)
156 #define SYS_DBGCLAIMCLR_EL1 sys_reg(2, 0, 7, 9, 6)
157 #define SYS_DBGAUTHSTATUS_EL1 sys_reg(2, 0, 7, 14, 6)
158 #define SYS_MDCCSR_EL0 sys_reg(2, 3, 0, 1, 0)
159 #define SYS_DBGDTR_EL0 sys_reg(2, 3, 0, 4, 0)
160 #define SYS_DBGDTRRX_EL0 sys_reg(2, 3, 0, 5, 0)
161 #define SYS_DBGDTRTX_EL0 sys_reg(2, 3, 0, 5, 0)
162 #define SYS_DBGVCR32_EL2 sys_reg(2, 4, 0, 7, 0)
164 #define SYS_MIDR_EL1 sys_reg(3, 0, 0, 0, 0)
165 #define SYS_MPIDR_EL1 sys_reg(3, 0, 0, 0, 5)
166 #define SYS_REVIDR_EL1 sys_reg(3, 0, 0, 0, 6)
168 #define SYS_ID_PFR0_EL1 sys_reg(3, 0, 0, 1, 0)
169 #define SYS_ID_PFR1_EL1 sys_reg(3, 0, 0, 1, 1)
170 #define SYS_ID_PFR2_EL1 sys_reg(3, 0, 0, 3, 4)
171 #define SYS_ID_DFR0_EL1 sys_reg(3, 0, 0, 1, 2)
172 #define SYS_ID_DFR1_EL1 sys_reg(3, 0, 0, 3, 5)
173 #define SYS_ID_AFR0_EL1 sys_reg(3, 0, 0, 1, 3)
174 #define SYS_ID_MMFR0_EL1 sys_reg(3, 0, 0, 1, 4)
175 #define SYS_ID_MMFR1_EL1 sys_reg(3, 0, 0, 1, 5)
176 #define SYS_ID_MMFR2_EL1 sys_reg(3, 0, 0, 1, 6)
177 #define SYS_ID_MMFR3_EL1 sys_reg(3, 0, 0, 1, 7)
178 #define SYS_ID_MMFR4_EL1 sys_reg(3, 0, 0, 2, 6)
179 #define SYS_ID_MMFR5_EL1 sys_reg(3, 0, 0, 3, 6)
181 #define SYS_ID_ISAR0_EL1 sys_reg(3, 0, 0, 2, 0)
182 #define SYS_ID_ISAR1_EL1 sys_reg(3, 0, 0, 2, 1)
183 #define SYS_ID_ISAR2_EL1 sys_reg(3, 0, 0, 2, 2)
184 #define SYS_ID_ISAR3_EL1 sys_reg(3, 0, 0, 2, 3)
185 #define SYS_ID_ISAR4_EL1 sys_reg(3, 0, 0, 2, 4)
186 #define SYS_ID_ISAR5_EL1 sys_reg(3, 0, 0, 2, 5)
187 #define SYS_ID_ISAR6_EL1 sys_reg(3, 0, 0, 2, 7)
189 #define SYS_MVFR0_EL1 sys_reg(3, 0, 0, 3, 0)
190 #define SYS_MVFR1_EL1 sys_reg(3, 0, 0, 3, 1)
191 #define SYS_MVFR2_EL1 sys_reg(3, 0, 0, 3, 2)
193 #define SYS_ID_AA64PFR0_EL1 sys_reg(3, 0, 0, 4, 0)
194 #define SYS_ID_AA64PFR1_EL1 sys_reg(3, 0, 0, 4, 1)
196 #define SYS_ID_AA64DFR0_EL1 sys_reg(3, 0, 0, 5, 0)
197 #define SYS_ID_AA64DFR1_EL1 sys_reg(3, 0, 0, 5, 1)
199 #define SYS_ID_AA64AFR0_EL1 sys_reg(3, 0, 0, 5, 4)
200 #define SYS_ID_AA64AFR1_EL1 sys_reg(3, 0, 0, 5, 5)
202 #define SYS_ID_AA64MMFR0_EL1 sys_reg(3, 0, 0, 7, 0)
203 #define SYS_ID_AA64MMFR1_EL1 sys_reg(3, 0, 0, 7, 1)
204 #define SYS_ID_AA64MMFR2_EL1 sys_reg(3, 0, 0, 7, 2)
206 #define SYS_ACTLR_EL1 sys_reg(3, 0, 1, 0, 1)
207 #define SYS_RGSR_EL1 sys_reg(3, 0, 1, 0, 5)
208 #define SYS_GCR_EL1 sys_reg(3, 0, 1, 0, 6)
210 #define SYS_TRFCR_EL1 sys_reg(3, 0, 1, 2, 1)
212 #define SYS_TCR_EL1 sys_reg(3, 0, 2, 0, 2)
214 #define SYS_APIAKEYLO_EL1 sys_reg(3, 0, 2, 1, 0)
215 #define SYS_APIAKEYHI_EL1 sys_reg(3, 0, 2, 1, 1)
216 #define SYS_APIBKEYLO_EL1 sys_reg(3, 0, 2, 1, 2)
217 #define SYS_APIBKEYHI_EL1 sys_reg(3, 0, 2, 1, 3)
219 #define SYS_APDAKEYLO_EL1 sys_reg(3, 0, 2, 2, 0)
220 #define SYS_APDAKEYHI_EL1 sys_reg(3, 0, 2, 2, 1)
221 #define SYS_APDBKEYLO_EL1 sys_reg(3, 0, 2, 2, 2)
222 #define SYS_APDBKEYHI_EL1 sys_reg(3, 0, 2, 2, 3)
224 #define SYS_APGAKEYLO_EL1 sys_reg(3, 0, 2, 3, 0)
225 #define SYS_APGAKEYHI_EL1 sys_reg(3, 0, 2, 3, 1)
227 #define SYS_SPSR_EL1 sys_reg(3, 0, 4, 0, 0)
228 #define SYS_ELR_EL1 sys_reg(3, 0, 4, 0, 1)
230 #define SYS_ICC_PMR_EL1 sys_reg(3, 0, 4, 6, 0)
232 #define SYS_AFSR0_EL1 sys_reg(3, 0, 5, 1, 0)
233 #define SYS_AFSR1_EL1 sys_reg(3, 0, 5, 1, 1)
234 #define SYS_ESR_EL1 sys_reg(3, 0, 5, 2, 0)
236 #define SYS_ERRIDR_EL1 sys_reg(3, 0, 5, 3, 0)
237 #define SYS_ERRSELR_EL1 sys_reg(3, 0, 5, 3, 1)
238 #define SYS_ERXFR_EL1 sys_reg(3, 0, 5, 4, 0)
239 #define SYS_ERXCTLR_EL1 sys_reg(3, 0, 5, 4, 1)
240 #define SYS_ERXSTATUS_EL1 sys_reg(3, 0, 5, 4, 2)
241 #define SYS_ERXADDR_EL1 sys_reg(3, 0, 5, 4, 3)
242 #define SYS_ERXMISC0_EL1 sys_reg(3, 0, 5, 5, 0)
243 #define SYS_ERXMISC1_EL1 sys_reg(3, 0, 5, 5, 1)
244 #define SYS_TFSR_EL1 sys_reg(3, 0, 5, 6, 0)
245 #define SYS_TFSRE0_EL1 sys_reg(3, 0, 5, 6, 1)
247 #define SYS_PAR_EL1 sys_reg(3, 0, 7, 4, 0)
249 #define SYS_PAR_EL1_F BIT(0)
250 #define SYS_PAR_EL1_FST GENMASK(6, 1)
252 /*** Statistical Profiling Extension ***/
254 #define SYS_PMSIDR_EL1 sys_reg(3, 0, 9, 9, 7)
255 #define SYS_PMSIDR_EL1_FE_SHIFT 0
256 #define SYS_PMSIDR_EL1_FT_SHIFT 1
257 #define SYS_PMSIDR_EL1_FL_SHIFT 2
258 #define SYS_PMSIDR_EL1_ARCHINST_SHIFT 3
259 #define SYS_PMSIDR_EL1_LDS_SHIFT 4
260 #define SYS_PMSIDR_EL1_ERND_SHIFT 5
261 #define SYS_PMSIDR_EL1_INTERVAL_SHIFT 8
262 #define SYS_PMSIDR_EL1_INTERVAL_MASK 0xfUL
263 #define SYS_PMSIDR_EL1_MAXSIZE_SHIFT 12
264 #define SYS_PMSIDR_EL1_MAXSIZE_MASK 0xfUL
265 #define SYS_PMSIDR_EL1_COUNTSIZE_SHIFT 16
266 #define SYS_PMSIDR_EL1_COUNTSIZE_MASK 0xfUL
268 #define SYS_PMBIDR_EL1 sys_reg(3, 0, 9, 10, 7)
269 #define SYS_PMBIDR_EL1_ALIGN_SHIFT 0
270 #define SYS_PMBIDR_EL1_ALIGN_MASK 0xfU
271 #define SYS_PMBIDR_EL1_P_SHIFT 4
272 #define SYS_PMBIDR_EL1_F_SHIFT 5
274 /* Sampling controls */
275 #define SYS_PMSCR_EL1 sys_reg(3, 0, 9, 9, 0)
276 #define SYS_PMSCR_EL1_E0SPE_SHIFT 0
277 #define SYS_PMSCR_EL1_E1SPE_SHIFT 1
278 #define SYS_PMSCR_EL1_CX_SHIFT 3
279 #define SYS_PMSCR_EL1_PA_SHIFT 4
280 #define SYS_PMSCR_EL1_TS_SHIFT 5
281 #define SYS_PMSCR_EL1_PCT_SHIFT 6
283 #define SYS_PMSCR_EL2 sys_reg(3, 4, 9, 9, 0)
284 #define SYS_PMSCR_EL2_E0HSPE_SHIFT 0
285 #define SYS_PMSCR_EL2_E2SPE_SHIFT 1
286 #define SYS_PMSCR_EL2_CX_SHIFT 3
287 #define SYS_PMSCR_EL2_PA_SHIFT 4
288 #define SYS_PMSCR_EL2_TS_SHIFT 5
289 #define SYS_PMSCR_EL2_PCT_SHIFT 6
291 #define SYS_PMSICR_EL1 sys_reg(3, 0, 9, 9, 2)
293 #define SYS_PMSIRR_EL1 sys_reg(3, 0, 9, 9, 3)
294 #define SYS_PMSIRR_EL1_RND_SHIFT 0
295 #define SYS_PMSIRR_EL1_INTERVAL_SHIFT 8
296 #define SYS_PMSIRR_EL1_INTERVAL_MASK 0xffffffUL
298 /* Filtering controls */
299 #define SYS_PMSNEVFR_EL1 sys_reg(3, 0, 9, 9, 1)
301 #define SYS_PMSFCR_EL1 sys_reg(3, 0, 9, 9, 4)
302 #define SYS_PMSFCR_EL1_FE_SHIFT 0
303 #define SYS_PMSFCR_EL1_FT_SHIFT 1
304 #define SYS_PMSFCR_EL1_FL_SHIFT 2
305 #define SYS_PMSFCR_EL1_B_SHIFT 16
306 #define SYS_PMSFCR_EL1_LD_SHIFT 17
307 #define SYS_PMSFCR_EL1_ST_SHIFT 18
309 #define SYS_PMSEVFR_EL1 sys_reg(3, 0, 9, 9, 5)
310 #define SYS_PMSEVFR_EL1_RES0_8_2 \
311 (GENMASK_ULL(47, 32) | GENMASK_ULL(23, 16) | GENMASK_ULL(11, 8) |\
312 BIT_ULL(6) | BIT_ULL(4) | BIT_ULL(2) | BIT_ULL(0))
313 #define SYS_PMSEVFR_EL1_RES0_8_3 \
314 (SYS_PMSEVFR_EL1_RES0_8_2 & ~(BIT_ULL(18) | BIT_ULL(17) | BIT_ULL(11)))
316 #define SYS_PMSLATFR_EL1 sys_reg(3, 0, 9, 9, 6)
317 #define SYS_PMSLATFR_EL1_MINLAT_SHIFT 0
319 /* Buffer controls */
320 #define SYS_PMBLIMITR_EL1 sys_reg(3, 0, 9, 10, 0)
321 #define SYS_PMBLIMITR_EL1_E_SHIFT 0
322 #define SYS_PMBLIMITR_EL1_FM_SHIFT 1
323 #define SYS_PMBLIMITR_EL1_FM_MASK 0x3UL
324 #define SYS_PMBLIMITR_EL1_FM_STOP_IRQ (0 << SYS_PMBLIMITR_EL1_FM_SHIFT)
326 #define SYS_PMBPTR_EL1 sys_reg(3, 0, 9, 10, 1)
328 /* Buffer error reporting */
329 #define SYS_PMBSR_EL1 sys_reg(3, 0, 9, 10, 3)
330 #define SYS_PMBSR_EL1_COLL_SHIFT 16
331 #define SYS_PMBSR_EL1_S_SHIFT 17
332 #define SYS_PMBSR_EL1_EA_SHIFT 18
333 #define SYS_PMBSR_EL1_DL_SHIFT 19
334 #define SYS_PMBSR_EL1_EC_SHIFT 26
335 #define SYS_PMBSR_EL1_EC_MASK 0x3fUL
337 #define SYS_PMBSR_EL1_EC_BUF (0x0UL << SYS_PMBSR_EL1_EC_SHIFT)
338 #define SYS_PMBSR_EL1_EC_FAULT_S1 (0x24UL << SYS_PMBSR_EL1_EC_SHIFT)
339 #define SYS_PMBSR_EL1_EC_FAULT_S2 (0x25UL << SYS_PMBSR_EL1_EC_SHIFT)
341 #define SYS_PMBSR_EL1_FAULT_FSC_SHIFT 0
342 #define SYS_PMBSR_EL1_FAULT_FSC_MASK 0x3fUL
344 #define SYS_PMBSR_EL1_BUF_BSC_SHIFT 0
345 #define SYS_PMBSR_EL1_BUF_BSC_MASK 0x3fUL
347 #define SYS_PMBSR_EL1_BUF_BSC_FULL (0x1UL << SYS_PMBSR_EL1_BUF_BSC_SHIFT)
349 /*** End of Statistical Profiling Extension ***/
354 #define SYS_TRBLIMITR_EL1 sys_reg(3, 0, 9, 11, 0)
355 #define SYS_TRBPTR_EL1 sys_reg(3, 0, 9, 11, 1)
356 #define SYS_TRBBASER_EL1 sys_reg(3, 0, 9, 11, 2)
357 #define SYS_TRBSR_EL1 sys_reg(3, 0, 9, 11, 3)
358 #define SYS_TRBMAR_EL1 sys_reg(3, 0, 9, 11, 4)
359 #define SYS_TRBTRG_EL1 sys_reg(3, 0, 9, 11, 6)
360 #define SYS_TRBIDR_EL1 sys_reg(3, 0, 9, 11, 7)
362 #define TRBLIMITR_LIMIT_MASK GENMASK_ULL(51, 0)
363 #define TRBLIMITR_LIMIT_SHIFT 12
364 #define TRBLIMITR_NVM BIT(5)
365 #define TRBLIMITR_TRIG_MODE_MASK GENMASK(1, 0)
366 #define TRBLIMITR_TRIG_MODE_SHIFT 3
367 #define TRBLIMITR_FILL_MODE_MASK GENMASK(1, 0)
368 #define TRBLIMITR_FILL_MODE_SHIFT 1
369 #define TRBLIMITR_ENABLE BIT(0)
370 #define TRBPTR_PTR_MASK GENMASK_ULL(63, 0)
371 #define TRBPTR_PTR_SHIFT 0
372 #define TRBBASER_BASE_MASK GENMASK_ULL(51, 0)
373 #define TRBBASER_BASE_SHIFT 12
374 #define TRBSR_EC_MASK GENMASK(5, 0)
375 #define TRBSR_EC_SHIFT 26
376 #define TRBSR_IRQ BIT(22)
377 #define TRBSR_TRG BIT(21)
378 #define TRBSR_WRAP BIT(20)
379 #define TRBSR_ABORT BIT(18)
380 #define TRBSR_STOP BIT(17)
381 #define TRBSR_MSS_MASK GENMASK(15, 0)
382 #define TRBSR_MSS_SHIFT 0
383 #define TRBSR_BSC_MASK GENMASK(5, 0)
384 #define TRBSR_BSC_SHIFT 0
385 #define TRBSR_FSC_MASK GENMASK(5, 0)
386 #define TRBSR_FSC_SHIFT 0
387 #define TRBMAR_SHARE_MASK GENMASK(1, 0)
388 #define TRBMAR_SHARE_SHIFT 8
389 #define TRBMAR_OUTER_MASK GENMASK(3, 0)
390 #define TRBMAR_OUTER_SHIFT 4
391 #define TRBMAR_INNER_MASK GENMASK(3, 0)
392 #define TRBMAR_INNER_SHIFT 0
393 #define TRBTRG_TRG_MASK GENMASK(31, 0)
394 #define TRBTRG_TRG_SHIFT 0
395 #define TRBIDR_FLAG BIT(5)
396 #define TRBIDR_PROG BIT(4)
397 #define TRBIDR_ALIGN_MASK GENMASK(3, 0)
398 #define TRBIDR_ALIGN_SHIFT 0
400 #define SYS_PMINTENSET_EL1 sys_reg(3, 0, 9, 14, 1)
401 #define SYS_PMINTENCLR_EL1 sys_reg(3, 0, 9, 14, 2)
403 #define SYS_PMMIR_EL1 sys_reg(3, 0, 9, 14, 6)
405 #define SYS_MAIR_EL1 sys_reg(3, 0, 10, 2, 0)
406 #define SYS_AMAIR_EL1 sys_reg(3, 0, 10, 3, 0)
408 #define SYS_VBAR_EL1 sys_reg(3, 0, 12, 0, 0)
409 #define SYS_DISR_EL1 sys_reg(3, 0, 12, 1, 1)
411 #define SYS_ICC_IAR0_EL1 sys_reg(3, 0, 12, 8, 0)
412 #define SYS_ICC_EOIR0_EL1 sys_reg(3, 0, 12, 8, 1)
413 #define SYS_ICC_HPPIR0_EL1 sys_reg(3, 0, 12, 8, 2)
414 #define SYS_ICC_BPR0_EL1 sys_reg(3, 0, 12, 8, 3)
415 #define SYS_ICC_AP0Rn_EL1(n) sys_reg(3, 0, 12, 8, 4 | n)
416 #define SYS_ICC_AP0R0_EL1 SYS_ICC_AP0Rn_EL1(0)
417 #define SYS_ICC_AP0R1_EL1 SYS_ICC_AP0Rn_EL1(1)
418 #define SYS_ICC_AP0R2_EL1 SYS_ICC_AP0Rn_EL1(2)
419 #define SYS_ICC_AP0R3_EL1 SYS_ICC_AP0Rn_EL1(3)
420 #define SYS_ICC_AP1Rn_EL1(n) sys_reg(3, 0, 12, 9, n)
421 #define SYS_ICC_AP1R0_EL1 SYS_ICC_AP1Rn_EL1(0)
422 #define SYS_ICC_AP1R1_EL1 SYS_ICC_AP1Rn_EL1(1)
423 #define SYS_ICC_AP1R2_EL1 SYS_ICC_AP1Rn_EL1(2)
424 #define SYS_ICC_AP1R3_EL1 SYS_ICC_AP1Rn_EL1(3)
425 #define SYS_ICC_DIR_EL1 sys_reg(3, 0, 12, 11, 1)
426 #define SYS_ICC_RPR_EL1 sys_reg(3, 0, 12, 11, 3)
427 #define SYS_ICC_SGI1R_EL1 sys_reg(3, 0, 12, 11, 5)
428 #define SYS_ICC_ASGI1R_EL1 sys_reg(3, 0, 12, 11, 6)
429 #define SYS_ICC_SGI0R_EL1 sys_reg(3, 0, 12, 11, 7)
430 #define SYS_ICC_IAR1_EL1 sys_reg(3, 0, 12, 12, 0)
431 #define SYS_ICC_EOIR1_EL1 sys_reg(3, 0, 12, 12, 1)
432 #define SYS_ICC_HPPIR1_EL1 sys_reg(3, 0, 12, 12, 2)
433 #define SYS_ICC_BPR1_EL1 sys_reg(3, 0, 12, 12, 3)
434 #define SYS_ICC_CTLR_EL1 sys_reg(3, 0, 12, 12, 4)
435 #define SYS_ICC_SRE_EL1 sys_reg(3, 0, 12, 12, 5)
436 #define SYS_ICC_IGRPEN0_EL1 sys_reg(3, 0, 12, 12, 6)
437 #define SYS_ICC_IGRPEN1_EL1 sys_reg(3, 0, 12, 12, 7)
439 #define SYS_TPIDR_EL1 sys_reg(3, 0, 13, 0, 4)
441 #define SYS_SCXTNUM_EL1 sys_reg(3, 0, 13, 0, 7)
443 #define SYS_CNTKCTL_EL1 sys_reg(3, 0, 14, 1, 0)
445 #define SYS_CCSIDR_EL1 sys_reg(3, 1, 0, 0, 0)
446 #define SYS_AIDR_EL1 sys_reg(3, 1, 0, 0, 7)
448 #define SYS_RNDR_EL0 sys_reg(3, 3, 2, 4, 0)
449 #define SYS_RNDRRS_EL0 sys_reg(3, 3, 2, 4, 1)
451 #define SYS_PMCR_EL0 sys_reg(3, 3, 9, 12, 0)
452 #define SYS_PMCNTENSET_EL0 sys_reg(3, 3, 9, 12, 1)
453 #define SYS_PMCNTENCLR_EL0 sys_reg(3, 3, 9, 12, 2)
454 #define SYS_PMOVSCLR_EL0 sys_reg(3, 3, 9, 12, 3)
455 #define SYS_PMSWINC_EL0 sys_reg(3, 3, 9, 12, 4)
456 #define SYS_PMSELR_EL0 sys_reg(3, 3, 9, 12, 5)
457 #define SYS_PMCEID0_EL0 sys_reg(3, 3, 9, 12, 6)
458 #define SYS_PMCEID1_EL0 sys_reg(3, 3, 9, 12, 7)
459 #define SYS_PMCCNTR_EL0 sys_reg(3, 3, 9, 13, 0)
460 #define SYS_PMXEVTYPER_EL0 sys_reg(3, 3, 9, 13, 1)
461 #define SYS_PMXEVCNTR_EL0 sys_reg(3, 3, 9, 13, 2)
462 #define SYS_PMUSERENR_EL0 sys_reg(3, 3, 9, 14, 0)
463 #define SYS_PMOVSSET_EL0 sys_reg(3, 3, 9, 14, 3)
465 #define SYS_TPIDR_EL0 sys_reg(3, 3, 13, 0, 2)
466 #define SYS_TPIDRRO_EL0 sys_reg(3, 3, 13, 0, 3)
467 #define SYS_TPIDR2_EL0 sys_reg(3, 3, 13, 0, 5)
469 #define SYS_SCXTNUM_EL0 sys_reg(3, 3, 13, 0, 7)
471 /* Definitions for system register interface to AMU for ARMv8.4 onwards */
472 #define SYS_AM_EL0(crm, op2) sys_reg(3, 3, 13, (crm), (op2))
473 #define SYS_AMCR_EL0 SYS_AM_EL0(2, 0)
474 #define SYS_AMCFGR_EL0 SYS_AM_EL0(2, 1)
475 #define SYS_AMCGCR_EL0 SYS_AM_EL0(2, 2)
476 #define SYS_AMUSERENR_EL0 SYS_AM_EL0(2, 3)
477 #define SYS_AMCNTENCLR0_EL0 SYS_AM_EL0(2, 4)
478 #define SYS_AMCNTENSET0_EL0 SYS_AM_EL0(2, 5)
479 #define SYS_AMCNTENCLR1_EL0 SYS_AM_EL0(3, 0)
480 #define SYS_AMCNTENSET1_EL0 SYS_AM_EL0(3, 1)
483 * Group 0 of activity monitors (architected):
484 * op0 op1 CRn CRm op2
485 * Counter: 11 011 1101 010:n<3> n<2:0>
486 * Type: 11 011 1101 011:n<3> n<2:0>
489 * Group 1 of activity monitors (auxiliary):
490 * op0 op1 CRn CRm op2
491 * Counter: 11 011 1101 110:n<3> n<2:0>
492 * Type: 11 011 1101 111:n<3> n<2:0>
496 #define SYS_AMEVCNTR0_EL0(n) SYS_AM_EL0(4 + ((n) >> 3), (n) & 7)
497 #define SYS_AMEVTYPER0_EL0(n) SYS_AM_EL0(6 + ((n) >> 3), (n) & 7)
498 #define SYS_AMEVCNTR1_EL0(n) SYS_AM_EL0(12 + ((n) >> 3), (n) & 7)
499 #define SYS_AMEVTYPER1_EL0(n) SYS_AM_EL0(14 + ((n) >> 3), (n) & 7)
501 /* AMU v1: Fixed (architecturally defined) activity monitors */
502 #define SYS_AMEVCNTR0_CORE_EL0 SYS_AMEVCNTR0_EL0(0)
503 #define SYS_AMEVCNTR0_CONST_EL0 SYS_AMEVCNTR0_EL0(1)
504 #define SYS_AMEVCNTR0_INST_RET_EL0 SYS_AMEVCNTR0_EL0(2)
505 #define SYS_AMEVCNTR0_MEM_STALL SYS_AMEVCNTR0_EL0(3)
507 #define SYS_CNTFRQ_EL0 sys_reg(3, 3, 14, 0, 0)
509 #define SYS_CNTPCTSS_EL0 sys_reg(3, 3, 14, 0, 5)
510 #define SYS_CNTVCTSS_EL0 sys_reg(3, 3, 14, 0, 6)
512 #define SYS_CNTP_TVAL_EL0 sys_reg(3, 3, 14, 2, 0)
513 #define SYS_CNTP_CTL_EL0 sys_reg(3, 3, 14, 2, 1)
514 #define SYS_CNTP_CVAL_EL0 sys_reg(3, 3, 14, 2, 2)
516 #define SYS_CNTV_CTL_EL0 sys_reg(3, 3, 14, 3, 1)
517 #define SYS_CNTV_CVAL_EL0 sys_reg(3, 3, 14, 3, 2)
519 #define SYS_AARCH32_CNTP_TVAL sys_reg(0, 0, 14, 2, 0)
520 #define SYS_AARCH32_CNTP_CTL sys_reg(0, 0, 14, 2, 1)
521 #define SYS_AARCH32_CNTP_CVAL sys_reg(0, 2, 0, 14, 0)
523 #define __PMEV_op2(n) ((n) & 0x7)
524 #define __CNTR_CRm(n) (0x8 | (((n) >> 3) & 0x3))
525 #define SYS_PMEVCNTRn_EL0(n) sys_reg(3, 3, 14, __CNTR_CRm(n), __PMEV_op2(n))
526 #define __TYPER_CRm(n) (0xc | (((n) >> 3) & 0x3))
527 #define SYS_PMEVTYPERn_EL0(n) sys_reg(3, 3, 14, __TYPER_CRm(n), __PMEV_op2(n))
529 #define SYS_PMCCFILTR_EL0 sys_reg(3, 3, 14, 15, 7)
531 #define SYS_SCTLR_EL2 sys_reg(3, 4, 1, 0, 0)
532 #define SYS_HFGRTR_EL2 sys_reg(3, 4, 1, 1, 4)
533 #define SYS_HFGWTR_EL2 sys_reg(3, 4, 1, 1, 5)
534 #define SYS_HFGITR_EL2 sys_reg(3, 4, 1, 1, 6)
535 #define SYS_TRFCR_EL2 sys_reg(3, 4, 1, 2, 1)
536 #define SYS_HCRX_EL2 sys_reg(3, 4, 1, 2, 2)
537 #define SYS_HDFGRTR_EL2 sys_reg(3, 4, 3, 1, 4)
538 #define SYS_HDFGWTR_EL2 sys_reg(3, 4, 3, 1, 5)
539 #define SYS_HAFGRTR_EL2 sys_reg(3, 4, 3, 1, 6)
540 #define SYS_SPSR_EL2 sys_reg(3, 4, 4, 0, 0)
541 #define SYS_ELR_EL2 sys_reg(3, 4, 4, 0, 1)
542 #define SYS_IFSR32_EL2 sys_reg(3, 4, 5, 0, 1)
543 #define SYS_ESR_EL2 sys_reg(3, 4, 5, 2, 0)
544 #define SYS_VSESR_EL2 sys_reg(3, 4, 5, 2, 3)
545 #define SYS_FPEXC32_EL2 sys_reg(3, 4, 5, 3, 0)
546 #define SYS_TFSR_EL2 sys_reg(3, 4, 5, 6, 0)
548 #define SYS_VDISR_EL2 sys_reg(3, 4, 12, 1, 1)
549 #define __SYS__AP0Rx_EL2(x) sys_reg(3, 4, 12, 8, x)
550 #define SYS_ICH_AP0R0_EL2 __SYS__AP0Rx_EL2(0)
551 #define SYS_ICH_AP0R1_EL2 __SYS__AP0Rx_EL2(1)
552 #define SYS_ICH_AP0R2_EL2 __SYS__AP0Rx_EL2(2)
553 #define SYS_ICH_AP0R3_EL2 __SYS__AP0Rx_EL2(3)
555 #define __SYS__AP1Rx_EL2(x) sys_reg(3, 4, 12, 9, x)
556 #define SYS_ICH_AP1R0_EL2 __SYS__AP1Rx_EL2(0)
557 #define SYS_ICH_AP1R1_EL2 __SYS__AP1Rx_EL2(1)
558 #define SYS_ICH_AP1R2_EL2 __SYS__AP1Rx_EL2(2)
559 #define SYS_ICH_AP1R3_EL2 __SYS__AP1Rx_EL2(3)
561 #define SYS_ICH_VSEIR_EL2 sys_reg(3, 4, 12, 9, 4)
562 #define SYS_ICC_SRE_EL2 sys_reg(3, 4, 12, 9, 5)
563 #define SYS_ICH_HCR_EL2 sys_reg(3, 4, 12, 11, 0)
564 #define SYS_ICH_VTR_EL2 sys_reg(3, 4, 12, 11, 1)
565 #define SYS_ICH_MISR_EL2 sys_reg(3, 4, 12, 11, 2)
566 #define SYS_ICH_EISR_EL2 sys_reg(3, 4, 12, 11, 3)
567 #define SYS_ICH_ELRSR_EL2 sys_reg(3, 4, 12, 11, 5)
568 #define SYS_ICH_VMCR_EL2 sys_reg(3, 4, 12, 11, 7)
570 #define __SYS__LR0_EL2(x) sys_reg(3, 4, 12, 12, x)
571 #define SYS_ICH_LR0_EL2 __SYS__LR0_EL2(0)
572 #define SYS_ICH_LR1_EL2 __SYS__LR0_EL2(1)
573 #define SYS_ICH_LR2_EL2 __SYS__LR0_EL2(2)
574 #define SYS_ICH_LR3_EL2 __SYS__LR0_EL2(3)
575 #define SYS_ICH_LR4_EL2 __SYS__LR0_EL2(4)
576 #define SYS_ICH_LR5_EL2 __SYS__LR0_EL2(5)
577 #define SYS_ICH_LR6_EL2 __SYS__LR0_EL2(6)
578 #define SYS_ICH_LR7_EL2 __SYS__LR0_EL2(7)
580 #define __SYS__LR8_EL2(x) sys_reg(3, 4, 12, 13, x)
581 #define SYS_ICH_LR8_EL2 __SYS__LR8_EL2(0)
582 #define SYS_ICH_LR9_EL2 __SYS__LR8_EL2(1)
583 #define SYS_ICH_LR10_EL2 __SYS__LR8_EL2(2)
584 #define SYS_ICH_LR11_EL2 __SYS__LR8_EL2(3)
585 #define SYS_ICH_LR12_EL2 __SYS__LR8_EL2(4)
586 #define SYS_ICH_LR13_EL2 __SYS__LR8_EL2(5)
587 #define SYS_ICH_LR14_EL2 __SYS__LR8_EL2(6)
588 #define SYS_ICH_LR15_EL2 __SYS__LR8_EL2(7)
590 /* VHE encodings for architectural EL0/1 system registers */
591 #define SYS_SCTLR_EL12 sys_reg(3, 5, 1, 0, 0)
592 #define SYS_TTBR0_EL12 sys_reg(3, 5, 2, 0, 0)
593 #define SYS_TTBR1_EL12 sys_reg(3, 5, 2, 0, 1)
594 #define SYS_TCR_EL12 sys_reg(3, 5, 2, 0, 2)
595 #define SYS_SPSR_EL12 sys_reg(3, 5, 4, 0, 0)
596 #define SYS_ELR_EL12 sys_reg(3, 5, 4, 0, 1)
597 #define SYS_AFSR0_EL12 sys_reg(3, 5, 5, 1, 0)
598 #define SYS_AFSR1_EL12 sys_reg(3, 5, 5, 1, 1)
599 #define SYS_ESR_EL12 sys_reg(3, 5, 5, 2, 0)
600 #define SYS_TFSR_EL12 sys_reg(3, 5, 5, 6, 0)
601 #define SYS_MAIR_EL12 sys_reg(3, 5, 10, 2, 0)
602 #define SYS_AMAIR_EL12 sys_reg(3, 5, 10, 3, 0)
603 #define SYS_VBAR_EL12 sys_reg(3, 5, 12, 0, 0)
604 #define SYS_CNTKCTL_EL12 sys_reg(3, 5, 14, 1, 0)
605 #define SYS_CNTP_TVAL_EL02 sys_reg(3, 5, 14, 2, 0)
606 #define SYS_CNTP_CTL_EL02 sys_reg(3, 5, 14, 2, 1)
607 #define SYS_CNTP_CVAL_EL02 sys_reg(3, 5, 14, 2, 2)
608 #define SYS_CNTV_TVAL_EL02 sys_reg(3, 5, 14, 3, 0)
609 #define SYS_CNTV_CTL_EL02 sys_reg(3, 5, 14, 3, 1)
610 #define SYS_CNTV_CVAL_EL02 sys_reg(3, 5, 14, 3, 2)
612 /* Common SCTLR_ELx flags. */
613 #define SCTLR_ELx_ENTP2 (BIT(60))
614 #define SCTLR_ELx_DSSBS (BIT(44))
615 #define SCTLR_ELx_ATA (BIT(43))
617 #define SCTLR_ELx_ENIA_SHIFT 31
619 #define SCTLR_ELx_ITFSB (BIT(37))
620 #define SCTLR_ELx_ENIA (BIT(SCTLR_ELx_ENIA_SHIFT))
621 #define SCTLR_ELx_ENIB (BIT(30))
622 #define SCTLR_ELx_LSMAOE (BIT(29))
623 #define SCTLR_ELx_nTLSMD (BIT(28))
624 #define SCTLR_ELx_ENDA (BIT(27))
625 #define SCTLR_ELx_EE (BIT(25))
626 #define SCTLR_ELx_EIS (BIT(22))
627 #define SCTLR_ELx_IESB (BIT(21))
628 #define SCTLR_ELx_TSCXT (BIT(20))
629 #define SCTLR_ELx_WXN (BIT(19))
630 #define SCTLR_ELx_ENDB (BIT(13))
631 #define SCTLR_ELx_I (BIT(12))
632 #define SCTLR_ELx_EOS (BIT(11))
633 #define SCTLR_ELx_SA (BIT(3))
634 #define SCTLR_ELx_C (BIT(2))
635 #define SCTLR_ELx_A (BIT(1))
636 #define SCTLR_ELx_M (BIT(0))
638 /* SCTLR_EL2 specific flags. */
639 #define SCTLR_EL2_RES1 ((BIT(4)) | (BIT(5)) | (BIT(11)) | (BIT(16)) | \
640 (BIT(18)) | (BIT(22)) | (BIT(23)) | (BIT(28)) | \
643 #ifdef CONFIG_CPU_BIG_ENDIAN
644 #define ENDIAN_SET_EL2 SCTLR_ELx_EE
646 #define ENDIAN_SET_EL2 0
649 #define INIT_SCTLR_EL2_MMU_ON \
650 (SCTLR_ELx_M | SCTLR_ELx_C | SCTLR_ELx_SA | SCTLR_ELx_I | \
651 SCTLR_ELx_IESB | SCTLR_ELx_WXN | ENDIAN_SET_EL2 | \
652 SCTLR_ELx_ITFSB | SCTLR_EL2_RES1)
654 #define INIT_SCTLR_EL2_MMU_OFF \
655 (SCTLR_EL2_RES1 | ENDIAN_SET_EL2)
657 /* SCTLR_EL1 specific flags. */
658 #ifdef CONFIG_CPU_BIG_ENDIAN
659 #define ENDIAN_SET_EL1 (SCTLR_EL1_E0E | SCTLR_ELx_EE)
661 #define ENDIAN_SET_EL1 0
664 #define INIT_SCTLR_EL1_MMU_OFF \
665 (ENDIAN_SET_EL1 | SCTLR_EL1_LSMAOE | SCTLR_EL1_nTLSMD | \
666 SCTLR_EL1_EIS | SCTLR_EL1_TSCXT | SCTLR_EL1_EOS)
668 #define INIT_SCTLR_EL1_MMU_ON \
669 (SCTLR_ELx_M | SCTLR_ELx_C | SCTLR_ELx_SA | \
670 SCTLR_EL1_SA0 | SCTLR_EL1_SED | SCTLR_ELx_I | \
671 SCTLR_EL1_DZE | SCTLR_EL1_UCT | SCTLR_EL1_nTWE | \
672 SCTLR_ELx_IESB | SCTLR_EL1_SPAN | SCTLR_ELx_ITFSB | \
673 ENDIAN_SET_EL1 | SCTLR_EL1_UCI | SCTLR_EL1_EPAN | \
674 SCTLR_EL1_LSMAOE | SCTLR_EL1_nTLSMD | SCTLR_EL1_EIS | \
675 SCTLR_EL1_TSCXT | SCTLR_EL1_EOS)
677 /* MAIR_ELx memory attributes (used by Linux) */
678 #define MAIR_ATTR_DEVICE_nGnRnE UL(0x00)
679 #define MAIR_ATTR_DEVICE_nGnRE UL(0x04)
680 #define MAIR_ATTR_NORMAL_NC UL(0x44)
681 #define MAIR_ATTR_NORMAL_TAGGED UL(0xf0)
682 #define MAIR_ATTR_NORMAL UL(0xff)
683 #define MAIR_ATTR_MASK UL(0xff)
685 /* Position the attr at the correct index */
686 #define MAIR_ATTRIDX(attr, idx) ((attr) << ((idx) * 8))
689 #define ID_AA64PFR0_CSV3_SHIFT 60
690 #define ID_AA64PFR0_CSV2_SHIFT 56
691 #define ID_AA64PFR0_DIT_SHIFT 48
692 #define ID_AA64PFR0_AMU_SHIFT 44
693 #define ID_AA64PFR0_MPAM_SHIFT 40
694 #define ID_AA64PFR0_SEL2_SHIFT 36
695 #define ID_AA64PFR0_SVE_SHIFT 32
696 #define ID_AA64PFR0_RAS_SHIFT 28
697 #define ID_AA64PFR0_GIC_SHIFT 24
698 #define ID_AA64PFR0_ASIMD_SHIFT 20
699 #define ID_AA64PFR0_FP_SHIFT 16
700 #define ID_AA64PFR0_EL3_SHIFT 12
701 #define ID_AA64PFR0_EL2_SHIFT 8
702 #define ID_AA64PFR0_EL1_SHIFT 4
703 #define ID_AA64PFR0_EL0_SHIFT 0
705 #define ID_AA64PFR0_AMU 0x1
706 #define ID_AA64PFR0_SVE 0x1
707 #define ID_AA64PFR0_RAS_V1 0x1
708 #define ID_AA64PFR0_RAS_V1P1 0x2
709 #define ID_AA64PFR0_FP_NI 0xf
710 #define ID_AA64PFR0_FP_SUPPORTED 0x0
711 #define ID_AA64PFR0_ASIMD_NI 0xf
712 #define ID_AA64PFR0_ASIMD_SUPPORTED 0x0
713 #define ID_AA64PFR0_ELx_64BIT_ONLY 0x1
714 #define ID_AA64PFR0_ELx_32BIT_64BIT 0x2
717 #define ID_AA64PFR1_SME_SHIFT 24
718 #define ID_AA64PFR1_MPAMFRAC_SHIFT 16
719 #define ID_AA64PFR1_RASFRAC_SHIFT 12
720 #define ID_AA64PFR1_MTE_SHIFT 8
721 #define ID_AA64PFR1_SSBS_SHIFT 4
722 #define ID_AA64PFR1_BT_SHIFT 0
724 #define ID_AA64PFR1_SSBS_PSTATE_NI 0
725 #define ID_AA64PFR1_SSBS_PSTATE_ONLY 1
726 #define ID_AA64PFR1_SSBS_PSTATE_INSNS 2
727 #define ID_AA64PFR1_BT_BTI 0x1
728 #define ID_AA64PFR1_SME 1
730 #define ID_AA64PFR1_MTE_NI 0x0
731 #define ID_AA64PFR1_MTE_EL0 0x1
732 #define ID_AA64PFR1_MTE 0x2
733 #define ID_AA64PFR1_MTE_ASYMM 0x3
736 #define ID_AA64MMFR0_ECV_SHIFT 60
737 #define ID_AA64MMFR0_FGT_SHIFT 56
738 #define ID_AA64MMFR0_EXS_SHIFT 44
739 #define ID_AA64MMFR0_TGRAN4_2_SHIFT 40
740 #define ID_AA64MMFR0_TGRAN64_2_SHIFT 36
741 #define ID_AA64MMFR0_TGRAN16_2_SHIFT 32
742 #define ID_AA64MMFR0_TGRAN4_SHIFT 28
743 #define ID_AA64MMFR0_TGRAN64_SHIFT 24
744 #define ID_AA64MMFR0_TGRAN16_SHIFT 20
745 #define ID_AA64MMFR0_BIGENDEL0_SHIFT 16
746 #define ID_AA64MMFR0_SNSMEM_SHIFT 12
747 #define ID_AA64MMFR0_BIGENDEL_SHIFT 8
748 #define ID_AA64MMFR0_ASID_SHIFT 4
749 #define ID_AA64MMFR0_PARANGE_SHIFT 0
751 #define ID_AA64MMFR0_ASID_8 0x0
752 #define ID_AA64MMFR0_ASID_16 0x2
754 #define ID_AA64MMFR0_TGRAN4_NI 0xf
755 #define ID_AA64MMFR0_TGRAN4_SUPPORTED_MIN 0x0
756 #define ID_AA64MMFR0_TGRAN4_SUPPORTED_MAX 0x7
757 #define ID_AA64MMFR0_TGRAN64_NI 0xf
758 #define ID_AA64MMFR0_TGRAN64_SUPPORTED_MIN 0x0
759 #define ID_AA64MMFR0_TGRAN64_SUPPORTED_MAX 0x7
760 #define ID_AA64MMFR0_TGRAN16_NI 0x0
761 #define ID_AA64MMFR0_TGRAN16_SUPPORTED_MIN 0x1
762 #define ID_AA64MMFR0_TGRAN16_SUPPORTED_MAX 0xf
764 #define ID_AA64MMFR0_PARANGE_32 0x0
765 #define ID_AA64MMFR0_PARANGE_36 0x1
766 #define ID_AA64MMFR0_PARANGE_40 0x2
767 #define ID_AA64MMFR0_PARANGE_42 0x3
768 #define ID_AA64MMFR0_PARANGE_44 0x4
769 #define ID_AA64MMFR0_PARANGE_48 0x5
770 #define ID_AA64MMFR0_PARANGE_52 0x6
772 #define ARM64_MIN_PARANGE_BITS 32
774 #define ID_AA64MMFR0_TGRAN_2_SUPPORTED_DEFAULT 0x0
775 #define ID_AA64MMFR0_TGRAN_2_SUPPORTED_NONE 0x1
776 #define ID_AA64MMFR0_TGRAN_2_SUPPORTED_MIN 0x2
777 #define ID_AA64MMFR0_TGRAN_2_SUPPORTED_MAX 0x7
779 #ifdef CONFIG_ARM64_PA_BITS_52
780 #define ID_AA64MMFR0_PARANGE_MAX ID_AA64MMFR0_PARANGE_52
782 #define ID_AA64MMFR0_PARANGE_MAX ID_AA64MMFR0_PARANGE_48
786 #define ID_AA64MMFR1_ECBHB_SHIFT 60
787 #define ID_AA64MMFR1_TIDCP1_SHIFT 52
788 #define ID_AA64MMFR1_HCX_SHIFT 40
789 #define ID_AA64MMFR1_AFP_SHIFT 44
790 #define ID_AA64MMFR1_ETS_SHIFT 36
791 #define ID_AA64MMFR1_TWED_SHIFT 32
792 #define ID_AA64MMFR1_XNX_SHIFT 28
793 #define ID_AA64MMFR1_SPECSEI_SHIFT 24
794 #define ID_AA64MMFR1_PAN_SHIFT 20
795 #define ID_AA64MMFR1_LOR_SHIFT 16
796 #define ID_AA64MMFR1_HPD_SHIFT 12
797 #define ID_AA64MMFR1_VHE_SHIFT 8
798 #define ID_AA64MMFR1_VMIDBITS_SHIFT 4
799 #define ID_AA64MMFR1_HADBS_SHIFT 0
801 #define ID_AA64MMFR1_VMIDBITS_8 0
802 #define ID_AA64MMFR1_VMIDBITS_16 2
804 #define ID_AA64MMFR1_TIDCP1_NI 0
805 #define ID_AA64MMFR1_TIDCP1_IMP 1
808 #define ID_AA64MMFR2_E0PD_SHIFT 60
809 #define ID_AA64MMFR2_EVT_SHIFT 56
810 #define ID_AA64MMFR2_BBM_SHIFT 52
811 #define ID_AA64MMFR2_TTL_SHIFT 48
812 #define ID_AA64MMFR2_FWB_SHIFT 40
813 #define ID_AA64MMFR2_IDS_SHIFT 36
814 #define ID_AA64MMFR2_AT_SHIFT 32
815 #define ID_AA64MMFR2_ST_SHIFT 28
816 #define ID_AA64MMFR2_NV_SHIFT 24
817 #define ID_AA64MMFR2_CCIDX_SHIFT 20
818 #define ID_AA64MMFR2_LVA_SHIFT 16
819 #define ID_AA64MMFR2_IESB_SHIFT 12
820 #define ID_AA64MMFR2_LSM_SHIFT 8
821 #define ID_AA64MMFR2_UAO_SHIFT 4
822 #define ID_AA64MMFR2_CNP_SHIFT 0
825 #define ID_AA64DFR0_MTPMU_SHIFT 48
826 #define ID_AA64DFR0_TRBE_SHIFT 44
827 #define ID_AA64DFR0_TRACE_FILT_SHIFT 40
828 #define ID_AA64DFR0_DOUBLELOCK_SHIFT 36
829 #define ID_AA64DFR0_PMSVER_SHIFT 32
830 #define ID_AA64DFR0_CTX_CMPS_SHIFT 28
831 #define ID_AA64DFR0_WRPS_SHIFT 20
832 #define ID_AA64DFR0_BRPS_SHIFT 12
833 #define ID_AA64DFR0_PMUVER_SHIFT 8
834 #define ID_AA64DFR0_TRACEVER_SHIFT 4
835 #define ID_AA64DFR0_DEBUGVER_SHIFT 0
837 #define ID_AA64DFR0_PMUVER_8_0 0x1
838 #define ID_AA64DFR0_PMUVER_8_1 0x4
839 #define ID_AA64DFR0_PMUVER_8_4 0x5
840 #define ID_AA64DFR0_PMUVER_8_5 0x6
841 #define ID_AA64DFR0_PMUVER_8_7 0x7
842 #define ID_AA64DFR0_PMUVER_IMP_DEF 0xf
844 #define ID_AA64DFR0_PMSVER_8_2 0x1
845 #define ID_AA64DFR0_PMSVER_8_3 0x2
847 #define ID_DFR0_PERFMON_SHIFT 24
849 #define ID_DFR0_PERFMON_8_0 0x3
850 #define ID_DFR0_PERFMON_8_1 0x4
851 #define ID_DFR0_PERFMON_8_4 0x5
852 #define ID_DFR0_PERFMON_8_5 0x6
854 #define ID_ISAR4_SWP_FRAC_SHIFT 28
855 #define ID_ISAR4_PSR_M_SHIFT 24
856 #define ID_ISAR4_SYNCH_PRIM_FRAC_SHIFT 20
857 #define ID_ISAR4_BARRIER_SHIFT 16
858 #define ID_ISAR4_SMC_SHIFT 12
859 #define ID_ISAR4_WRITEBACK_SHIFT 8
860 #define ID_ISAR4_WITHSHIFTS_SHIFT 4
861 #define ID_ISAR4_UNPRIV_SHIFT 0
863 #define ID_DFR1_MTPMU_SHIFT 0
865 #define ID_ISAR0_DIVIDE_SHIFT 24
866 #define ID_ISAR0_DEBUG_SHIFT 20
867 #define ID_ISAR0_COPROC_SHIFT 16
868 #define ID_ISAR0_CMPBRANCH_SHIFT 12
869 #define ID_ISAR0_BITFIELD_SHIFT 8
870 #define ID_ISAR0_BITCOUNT_SHIFT 4
871 #define ID_ISAR0_SWAP_SHIFT 0
873 #define ID_ISAR5_RDM_SHIFT 24
874 #define ID_ISAR5_CRC32_SHIFT 16
875 #define ID_ISAR5_SHA2_SHIFT 12
876 #define ID_ISAR5_SHA1_SHIFT 8
877 #define ID_ISAR5_AES_SHIFT 4
878 #define ID_ISAR5_SEVL_SHIFT 0
880 #define ID_ISAR6_I8MM_SHIFT 24
881 #define ID_ISAR6_BF16_SHIFT 20
882 #define ID_ISAR6_SPECRES_SHIFT 16
883 #define ID_ISAR6_SB_SHIFT 12
884 #define ID_ISAR6_FHM_SHIFT 8
885 #define ID_ISAR6_DP_SHIFT 4
886 #define ID_ISAR6_JSCVT_SHIFT 0
888 #define ID_MMFR0_INNERSHR_SHIFT 28
889 #define ID_MMFR0_FCSE_SHIFT 24
890 #define ID_MMFR0_AUXREG_SHIFT 20
891 #define ID_MMFR0_TCM_SHIFT 16
892 #define ID_MMFR0_SHARELVL_SHIFT 12
893 #define ID_MMFR0_OUTERSHR_SHIFT 8
894 #define ID_MMFR0_PMSA_SHIFT 4
895 #define ID_MMFR0_VMSA_SHIFT 0
897 #define ID_MMFR4_EVT_SHIFT 28
898 #define ID_MMFR4_CCIDX_SHIFT 24
899 #define ID_MMFR4_LSM_SHIFT 20
900 #define ID_MMFR4_HPDS_SHIFT 16
901 #define ID_MMFR4_CNP_SHIFT 12
902 #define ID_MMFR4_XNX_SHIFT 8
903 #define ID_MMFR4_AC2_SHIFT 4
904 #define ID_MMFR4_SPECSEI_SHIFT 0
906 #define ID_MMFR5_ETS_SHIFT 0
908 #define ID_PFR0_DIT_SHIFT 24
909 #define ID_PFR0_CSV2_SHIFT 16
910 #define ID_PFR0_STATE3_SHIFT 12
911 #define ID_PFR0_STATE2_SHIFT 8
912 #define ID_PFR0_STATE1_SHIFT 4
913 #define ID_PFR0_STATE0_SHIFT 0
915 #define ID_DFR0_PERFMON_SHIFT 24
916 #define ID_DFR0_MPROFDBG_SHIFT 20
917 #define ID_DFR0_MMAPTRC_SHIFT 16
918 #define ID_DFR0_COPTRC_SHIFT 12
919 #define ID_DFR0_MMAPDBG_SHIFT 8
920 #define ID_DFR0_COPSDBG_SHIFT 4
921 #define ID_DFR0_COPDBG_SHIFT 0
923 #define ID_PFR2_SSBS_SHIFT 4
924 #define ID_PFR2_CSV3_SHIFT 0
926 #define MVFR0_FPROUND_SHIFT 28
927 #define MVFR0_FPSHVEC_SHIFT 24
928 #define MVFR0_FPSQRT_SHIFT 20
929 #define MVFR0_FPDIVIDE_SHIFT 16
930 #define MVFR0_FPTRAP_SHIFT 12
931 #define MVFR0_FPDP_SHIFT 8
932 #define MVFR0_FPSP_SHIFT 4
933 #define MVFR0_SIMD_SHIFT 0
935 #define MVFR1_SIMDFMAC_SHIFT 28
936 #define MVFR1_FPHP_SHIFT 24
937 #define MVFR1_SIMDHP_SHIFT 20
938 #define MVFR1_SIMDSP_SHIFT 16
939 #define MVFR1_SIMDINT_SHIFT 12
940 #define MVFR1_SIMDLS_SHIFT 8
941 #define MVFR1_FPDNAN_SHIFT 4
942 #define MVFR1_FPFTZ_SHIFT 0
944 #define ID_PFR1_GIC_SHIFT 28
945 #define ID_PFR1_VIRT_FRAC_SHIFT 24
946 #define ID_PFR1_SEC_FRAC_SHIFT 20
947 #define ID_PFR1_GENTIMER_SHIFT 16
948 #define ID_PFR1_VIRTUALIZATION_SHIFT 12
949 #define ID_PFR1_MPROGMOD_SHIFT 8
950 #define ID_PFR1_SECURITY_SHIFT 4
951 #define ID_PFR1_PROGMOD_SHIFT 0
953 #if defined(CONFIG_ARM64_4K_PAGES)
954 #define ID_AA64MMFR0_TGRAN_SHIFT ID_AA64MMFR0_TGRAN4_SHIFT
955 #define ID_AA64MMFR0_TGRAN_SUPPORTED_MIN ID_AA64MMFR0_TGRAN4_SUPPORTED_MIN
956 #define ID_AA64MMFR0_TGRAN_SUPPORTED_MAX ID_AA64MMFR0_TGRAN4_SUPPORTED_MAX
957 #define ID_AA64MMFR0_TGRAN_2_SHIFT ID_AA64MMFR0_TGRAN4_2_SHIFT
958 #elif defined(CONFIG_ARM64_16K_PAGES)
959 #define ID_AA64MMFR0_TGRAN_SHIFT ID_AA64MMFR0_TGRAN16_SHIFT
960 #define ID_AA64MMFR0_TGRAN_SUPPORTED_MIN ID_AA64MMFR0_TGRAN16_SUPPORTED_MIN
961 #define ID_AA64MMFR0_TGRAN_SUPPORTED_MAX ID_AA64MMFR0_TGRAN16_SUPPORTED_MAX
962 #define ID_AA64MMFR0_TGRAN_2_SHIFT ID_AA64MMFR0_TGRAN16_2_SHIFT
963 #elif defined(CONFIG_ARM64_64K_PAGES)
964 #define ID_AA64MMFR0_TGRAN_SHIFT ID_AA64MMFR0_TGRAN64_SHIFT
965 #define ID_AA64MMFR0_TGRAN_SUPPORTED_MIN ID_AA64MMFR0_TGRAN64_SUPPORTED_MIN
966 #define ID_AA64MMFR0_TGRAN_SUPPORTED_MAX ID_AA64MMFR0_TGRAN64_SUPPORTED_MAX
967 #define ID_AA64MMFR0_TGRAN_2_SHIFT ID_AA64MMFR0_TGRAN64_2_SHIFT
970 #define MVFR2_FPMISC_SHIFT 4
971 #define MVFR2_SIMDMISC_SHIFT 0
973 #define CPACR_EL1_FPEN_EL1EN (BIT(20)) /* enable EL1 access */
974 #define CPACR_EL1_FPEN_EL0EN (BIT(21)) /* enable EL0 access, if EL1EN set */
976 #define CPACR_EL1_SMEN_EL1EN (BIT(24)) /* enable EL1 access */
977 #define CPACR_EL1_SMEN_EL0EN (BIT(25)) /* enable EL0 access, if EL1EN set */
979 #define CPACR_EL1_ZEN_EL1EN (BIT(16)) /* enable EL1 access */
980 #define CPACR_EL1_ZEN_EL0EN (BIT(17)) /* enable EL0 access, if EL1EN set */
982 /* GCR_EL1 Definitions */
983 #define SYS_GCR_EL1_RRND (BIT(16))
984 #define SYS_GCR_EL1_EXCL_MASK 0xffffUL
986 #ifdef CONFIG_KASAN_HW_TAGS
988 * KASAN always uses a whole byte for its tags. With CONFIG_KASAN_HW_TAGS it
989 * only uses tags in the range 0xF0-0xFF, which we map to MTE tags 0x0-0xF.
991 #define __MTE_TAG_MIN (KASAN_TAG_MIN & 0xf)
992 #define __MTE_TAG_MAX (KASAN_TAG_MAX & 0xf)
993 #define __MTE_TAG_INCL GENMASK(__MTE_TAG_MAX, __MTE_TAG_MIN)
994 #define KERNEL_GCR_EL1_EXCL (SYS_GCR_EL1_EXCL_MASK & ~__MTE_TAG_INCL)
996 #define KERNEL_GCR_EL1_EXCL SYS_GCR_EL1_EXCL_MASK
999 #define KERNEL_GCR_EL1 (SYS_GCR_EL1_RRND | KERNEL_GCR_EL1_EXCL)
1001 /* RGSR_EL1 Definitions */
1002 #define SYS_RGSR_EL1_TAG_MASK 0xfUL
1003 #define SYS_RGSR_EL1_SEED_SHIFT 8
1004 #define SYS_RGSR_EL1_SEED_MASK 0xffffUL
1006 /* GMID_EL1 field definitions */
1007 #define GMID_EL1_BS_SHIFT 0
1008 #define GMID_EL1_BS_SIZE 4
1010 /* TFSR{,E0}_EL1 bit definitions */
1011 #define SYS_TFSR_EL1_TF0_SHIFT 0
1012 #define SYS_TFSR_EL1_TF1_SHIFT 1
1013 #define SYS_TFSR_EL1_TF0 (UL(1) << SYS_TFSR_EL1_TF0_SHIFT)
1014 #define SYS_TFSR_EL1_TF1 (UL(1) << SYS_TFSR_EL1_TF1_SHIFT)
1016 /* Safe value for MPIDR_EL1: Bit31:RES1, Bit30:U:0, Bit24:MT:0 */
1017 #define SYS_MPIDR_SAFE_VAL (BIT(31))
1019 #define TRFCR_ELx_TS_SHIFT 5
1020 #define TRFCR_ELx_TS_VIRTUAL ((0x1UL) << TRFCR_ELx_TS_SHIFT)
1021 #define TRFCR_ELx_TS_GUEST_PHYSICAL ((0x2UL) << TRFCR_ELx_TS_SHIFT)
1022 #define TRFCR_ELx_TS_PHYSICAL ((0x3UL) << TRFCR_ELx_TS_SHIFT)
1023 #define TRFCR_EL2_CX BIT(3)
1024 #define TRFCR_ELx_ExTRE BIT(1)
1025 #define TRFCR_ELx_E0TRE BIT(0)
1027 /* HCRX_EL2 definitions */
1028 #define HCRX_EL2_SMPME_MASK (1 << 5)
1030 /* GIC Hypervisor interface registers */
1031 /* ICH_MISR_EL2 bit definitions */
1032 #define ICH_MISR_EOI (1 << 0)
1033 #define ICH_MISR_U (1 << 1)
1035 /* ICH_LR*_EL2 bit definitions */
1036 #define ICH_LR_VIRTUAL_ID_MASK ((1ULL << 32) - 1)
1038 #define ICH_LR_EOI (1ULL << 41)
1039 #define ICH_LR_GROUP (1ULL << 60)
1040 #define ICH_LR_HW (1ULL << 61)
1041 #define ICH_LR_STATE (3ULL << 62)
1042 #define ICH_LR_PENDING_BIT (1ULL << 62)
1043 #define ICH_LR_ACTIVE_BIT (1ULL << 63)
1044 #define ICH_LR_PHYS_ID_SHIFT 32
1045 #define ICH_LR_PHYS_ID_MASK (0x3ffULL << ICH_LR_PHYS_ID_SHIFT)
1046 #define ICH_LR_PRIORITY_SHIFT 48
1047 #define ICH_LR_PRIORITY_MASK (0xffULL << ICH_LR_PRIORITY_SHIFT)
1049 /* ICH_HCR_EL2 bit definitions */
1050 #define ICH_HCR_EN (1 << 0)
1051 #define ICH_HCR_UIE (1 << 1)
1052 #define ICH_HCR_NPIE (1 << 3)
1053 #define ICH_HCR_TC (1 << 10)
1054 #define ICH_HCR_TALL0 (1 << 11)
1055 #define ICH_HCR_TALL1 (1 << 12)
1056 #define ICH_HCR_TDIR (1 << 14)
1057 #define ICH_HCR_EOIcount_SHIFT 27
1058 #define ICH_HCR_EOIcount_MASK (0x1f << ICH_HCR_EOIcount_SHIFT)
1060 /* ICH_VMCR_EL2 bit definitions */
1061 #define ICH_VMCR_ACK_CTL_SHIFT 2
1062 #define ICH_VMCR_ACK_CTL_MASK (1 << ICH_VMCR_ACK_CTL_SHIFT)
1063 #define ICH_VMCR_FIQ_EN_SHIFT 3
1064 #define ICH_VMCR_FIQ_EN_MASK (1 << ICH_VMCR_FIQ_EN_SHIFT)
1065 #define ICH_VMCR_CBPR_SHIFT 4
1066 #define ICH_VMCR_CBPR_MASK (1 << ICH_VMCR_CBPR_SHIFT)
1067 #define ICH_VMCR_EOIM_SHIFT 9
1068 #define ICH_VMCR_EOIM_MASK (1 << ICH_VMCR_EOIM_SHIFT)
1069 #define ICH_VMCR_BPR1_SHIFT 18
1070 #define ICH_VMCR_BPR1_MASK (7 << ICH_VMCR_BPR1_SHIFT)
1071 #define ICH_VMCR_BPR0_SHIFT 21
1072 #define ICH_VMCR_BPR0_MASK (7 << ICH_VMCR_BPR0_SHIFT)
1073 #define ICH_VMCR_PMR_SHIFT 24
1074 #define ICH_VMCR_PMR_MASK (0xffUL << ICH_VMCR_PMR_SHIFT)
1075 #define ICH_VMCR_ENG0_SHIFT 0
1076 #define ICH_VMCR_ENG0_MASK (1 << ICH_VMCR_ENG0_SHIFT)
1077 #define ICH_VMCR_ENG1_SHIFT 1
1078 #define ICH_VMCR_ENG1_MASK (1 << ICH_VMCR_ENG1_SHIFT)
1080 /* ICH_VTR_EL2 bit definitions */
1081 #define ICH_VTR_PRI_BITS_SHIFT 29
1082 #define ICH_VTR_PRI_BITS_MASK (7 << ICH_VTR_PRI_BITS_SHIFT)
1083 #define ICH_VTR_ID_BITS_SHIFT 23
1084 #define ICH_VTR_ID_BITS_MASK (7 << ICH_VTR_ID_BITS_SHIFT)
1085 #define ICH_VTR_SEIS_SHIFT 22
1086 #define ICH_VTR_SEIS_MASK (1 << ICH_VTR_SEIS_SHIFT)
1087 #define ICH_VTR_A3V_SHIFT 21
1088 #define ICH_VTR_A3V_MASK (1 << ICH_VTR_A3V_SHIFT)
1089 #define ICH_VTR_TDS_SHIFT 19
1090 #define ICH_VTR_TDS_MASK (1 << ICH_VTR_TDS_SHIFT)
1092 /* HFG[WR]TR_EL2 bit definitions */
1093 #define HFGxTR_EL2_nTPIDR2_EL0_SHIFT 55
1094 #define HFGxTR_EL2_nTPIDR2_EL0_MASK BIT_MASK(HFGxTR_EL2_nTPIDR2_EL0_SHIFT)
1095 #define HFGxTR_EL2_nSMPRI_EL1_SHIFT 54
1096 #define HFGxTR_EL2_nSMPRI_EL1_MASK BIT_MASK(HFGxTR_EL2_nSMPRI_EL1_SHIFT)
1098 #define ARM64_FEATURE_FIELD_BITS 4
1100 /* Create a mask for the feature bits of the specified feature. */
1101 #define ARM64_FEATURE_MASK(x) (GENMASK_ULL(x##_SHIFT + ARM64_FEATURE_FIELD_BITS - 1, x##_SHIFT))
1105 .macro mrs_s, rt, sreg
1106 __emit_inst(0xd5200000|(\sreg)|(.L__gpr_num_\rt))
1109 .macro msr_s, sreg, rt
1110 __emit_inst(0xd5000000|(\sreg)|(.L__gpr_num_\rt))
1115 #include <linux/bitfield.h>
1116 #include <linux/build_bug.h>
1117 #include <linux/types.h>
1118 #include <asm/alternative.h>
1120 #define DEFINE_MRS_S \
1121 __DEFINE_ASM_GPR_NUMS \
1122 " .macro mrs_s, rt, sreg\n" \
1123 __emit_inst(0xd5200000|(\\sreg)|(.L__gpr_num_\\rt)) \
1126 #define DEFINE_MSR_S \
1127 __DEFINE_ASM_GPR_NUMS \
1128 " .macro msr_s, sreg, rt\n" \
1129 __emit_inst(0xd5000000|(\\sreg)|(.L__gpr_num_\\rt)) \
1132 #define UNDEFINE_MRS_S \
1135 #define UNDEFINE_MSR_S \
1138 #define __mrs_s(v, r) \
1140 " mrs_s " v ", " __stringify(r) "\n" \
1143 #define __msr_s(r, v) \
1145 " msr_s " __stringify(r) ", " v "\n" \
1149 * Unlike read_cpuid, calls to read_sysreg are never expected to be
1150 * optimized away or replaced with synthetic values.
1152 #define read_sysreg(r) ({ \
1154 asm volatile("mrs %0, " __stringify(r) : "=r" (__val)); \
1159 * The "Z" constraint normally means a zero immediate, but when combined with
1160 * the "%x0" template means XZR.
1162 #define write_sysreg(v, r) do { \
1163 u64 __val = (u64)(v); \
1164 asm volatile("msr " __stringify(r) ", %x0" \
1165 : : "rZ" (__val)); \
1169 * For registers without architectural names, or simply unsupported by
1172 #define read_sysreg_s(r) ({ \
1174 asm volatile(__mrs_s("%0", r) : "=r" (__val)); \
1178 #define write_sysreg_s(v, r) do { \
1179 u64 __val = (u64)(v); \
1180 asm volatile(__msr_s(r, "%x0") : : "rZ" (__val)); \
1184 * Modify bits in a sysreg. Bits in the clear mask are zeroed, then bits in the
1185 * set mask are set. Other bits are left as-is.
1187 #define sysreg_clear_set(sysreg, clear, set) do { \
1188 u64 __scs_val = read_sysreg(sysreg); \
1189 u64 __scs_new = (__scs_val & ~(u64)(clear)) | (set); \
1190 if (__scs_new != __scs_val) \
1191 write_sysreg(__scs_new, sysreg); \
1194 #define sysreg_clear_set_s(sysreg, clear, set) do { \
1195 u64 __scs_val = read_sysreg_s(sysreg); \
1196 u64 __scs_new = (__scs_val & ~(u64)(clear)) | (set); \
1197 if (__scs_new != __scs_val) \
1198 write_sysreg_s(__scs_new, sysreg); \
1201 #define read_sysreg_par() ({ \
1203 asm(ALTERNATIVE("nop", "dmb sy", ARM64_WORKAROUND_1508412)); \
1204 par = read_sysreg(par_el1); \
1205 asm(ALTERNATIVE("nop", "dmb sy", ARM64_WORKAROUND_1508412)); \
1209 #define SYS_FIELD_GET(reg, field, val) \
1210 FIELD_GET(reg##_##field##_MASK, val)
1212 #define SYS_FIELD_PREP(reg, field, val) \
1213 FIELD_PREP(reg##_##field##_MASK, val)
1215 #define SYS_FIELD_PREP_ENUM(reg, field, val) \
1216 FIELD_PREP(reg##_##field##_MASK, reg##_##field##_##val)
1220 #endif /* __ASM_SYSREG_H */