2 * Macros for accessing system registers with older binutils.
4 * Copyright (C) 2014 ARM Ltd.
5 * Author: Catalin Marinas <catalin.marinas@arm.com>
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #ifndef __ASM_SYSREG_H
21 #define __ASM_SYSREG_H
23 #include <linux/const.h>
24 #include <linux/stringify.h>
27 * ARMv8 ARM reserves the following encoding for system registers:
28 * (Ref: ARMv8 ARM, Section: "System instruction class encoding overview",
29 * C5.2, version:ARM DDI 0487A.f)
47 #define sys_reg(op0, op1, crn, crm, op2) \
48 (((op0) << Op0_shift) | ((op1) << Op1_shift) | \
49 ((crn) << CRn_shift) | ((crm) << CRm_shift) | \
52 #define sys_insn sys_reg
54 #define sys_reg_Op0(id) (((id) >> Op0_shift) & Op0_mask)
55 #define sys_reg_Op1(id) (((id) >> Op1_shift) & Op1_mask)
56 #define sys_reg_CRn(id) (((id) >> CRn_shift) & CRn_mask)
57 #define sys_reg_CRm(id) (((id) >> CRm_shift) & CRm_mask)
58 #define sys_reg_Op2(id) (((id) >> Op2_shift) & Op2_mask)
60 #ifndef CONFIG_BROKEN_GAS_INST
63 #define __emit_inst(x) .inst (x)
65 #define __emit_inst(x) ".inst " __stringify((x)) "\n\t"
68 #else /* CONFIG_BROKEN_GAS_INST */
70 #ifndef CONFIG_CPU_BIG_ENDIAN
71 #define __INSTR_BSWAP(x) (x)
72 #else /* CONFIG_CPU_BIG_ENDIAN */
73 #define __INSTR_BSWAP(x) ((((x) << 24) & 0xff000000) | \
74 (((x) << 8) & 0x00ff0000) | \
75 (((x) >> 8) & 0x0000ff00) | \
76 (((x) >> 24) & 0x000000ff))
77 #endif /* CONFIG_CPU_BIG_ENDIAN */
80 #define __emit_inst(x) .long __INSTR_BSWAP(x)
81 #else /* __ASSEMBLY__ */
82 #define __emit_inst(x) ".long " __stringify(__INSTR_BSWAP(x)) "\n\t"
83 #endif /* __ASSEMBLY__ */
85 #endif /* CONFIG_BROKEN_GAS_INST */
88 * Instructions for modifying PSTATE fields.
89 * As per Arm ARM for v8-A, Section "C.5.1.3 op0 == 0b00, architectural hints,
90 * barriers and CLREX, and PSTATE access", ARM DDI 0487 C.a, system instructions
91 * for accessing PSTATE fields have the following encoding:
93 * Op1, Op2 encodes the PSTATE field modified and defines the constraints.
94 * CRm = Imm4 for the instruction.
97 #define pstate_field(op1, op2) ((op1) << Op1_shift | (op2) << Op2_shift)
98 #define PSTATE_Imm_shift CRm_shift
100 #define PSTATE_PAN pstate_field(0, 4)
101 #define PSTATE_UAO pstate_field(0, 3)
102 #define PSTATE_SSBS pstate_field(3, 1)
104 #define SET_PSTATE_PAN(x) __emit_inst(0xd500401f | PSTATE_PAN | ((!!x) << PSTATE_Imm_shift))
105 #define SET_PSTATE_UAO(x) __emit_inst(0xd500401f | PSTATE_UAO | ((!!x) << PSTATE_Imm_shift))
106 #define SET_PSTATE_SSBS(x) __emit_inst(0xd500401f | PSTATE_SSBS | ((!!x) << PSTATE_Imm_shift))
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)
117 #define SYS_OSDTRRX_EL1 sys_reg(2, 0, 0, 0, 2)
118 #define SYS_MDCCINT_EL1 sys_reg(2, 0, 0, 2, 0)
119 #define SYS_MDSCR_EL1 sys_reg(2, 0, 0, 2, 2)
120 #define SYS_OSDTRTX_EL1 sys_reg(2, 0, 0, 3, 2)
121 #define SYS_OSECCR_EL1 sys_reg(2, 0, 0, 6, 2)
122 #define SYS_DBGBVRn_EL1(n) sys_reg(2, 0, 0, n, 4)
123 #define SYS_DBGBCRn_EL1(n) sys_reg(2, 0, 0, n, 5)
124 #define SYS_DBGWVRn_EL1(n) sys_reg(2, 0, 0, n, 6)
125 #define SYS_DBGWCRn_EL1(n) sys_reg(2, 0, 0, n, 7)
126 #define SYS_MDRAR_EL1 sys_reg(2, 0, 1, 0, 0)
127 #define SYS_OSLAR_EL1 sys_reg(2, 0, 1, 0, 4)
128 #define SYS_OSLSR_EL1 sys_reg(2, 0, 1, 1, 4)
129 #define SYS_OSDLR_EL1 sys_reg(2, 0, 1, 3, 4)
130 #define SYS_DBGPRCR_EL1 sys_reg(2, 0, 1, 4, 4)
131 #define SYS_DBGCLAIMSET_EL1 sys_reg(2, 0, 7, 8, 6)
132 #define SYS_DBGCLAIMCLR_EL1 sys_reg(2, 0, 7, 9, 6)
133 #define SYS_DBGAUTHSTATUS_EL1 sys_reg(2, 0, 7, 14, 6)
134 #define SYS_MDCCSR_EL0 sys_reg(2, 3, 0, 1, 0)
135 #define SYS_DBGDTR_EL0 sys_reg(2, 3, 0, 4, 0)
136 #define SYS_DBGDTRRX_EL0 sys_reg(2, 3, 0, 5, 0)
137 #define SYS_DBGDTRTX_EL0 sys_reg(2, 3, 0, 5, 0)
138 #define SYS_DBGVCR32_EL2 sys_reg(2, 4, 0, 7, 0)
140 #define SYS_MIDR_EL1 sys_reg(3, 0, 0, 0, 0)
141 #define SYS_MPIDR_EL1 sys_reg(3, 0, 0, 0, 5)
142 #define SYS_REVIDR_EL1 sys_reg(3, 0, 0, 0, 6)
144 #define SYS_ID_PFR0_EL1 sys_reg(3, 0, 0, 1, 0)
145 #define SYS_ID_PFR1_EL1 sys_reg(3, 0, 0, 1, 1)
146 #define SYS_ID_DFR0_EL1 sys_reg(3, 0, 0, 1, 2)
147 #define SYS_ID_AFR0_EL1 sys_reg(3, 0, 0, 1, 3)
148 #define SYS_ID_MMFR0_EL1 sys_reg(3, 0, 0, 1, 4)
149 #define SYS_ID_MMFR1_EL1 sys_reg(3, 0, 0, 1, 5)
150 #define SYS_ID_MMFR2_EL1 sys_reg(3, 0, 0, 1, 6)
151 #define SYS_ID_MMFR3_EL1 sys_reg(3, 0, 0, 1, 7)
153 #define SYS_ID_ISAR0_EL1 sys_reg(3, 0, 0, 2, 0)
154 #define SYS_ID_ISAR1_EL1 sys_reg(3, 0, 0, 2, 1)
155 #define SYS_ID_ISAR2_EL1 sys_reg(3, 0, 0, 2, 2)
156 #define SYS_ID_ISAR3_EL1 sys_reg(3, 0, 0, 2, 3)
157 #define SYS_ID_ISAR4_EL1 sys_reg(3, 0, 0, 2, 4)
158 #define SYS_ID_ISAR5_EL1 sys_reg(3, 0, 0, 2, 5)
159 #define SYS_ID_MMFR4_EL1 sys_reg(3, 0, 0, 2, 6)
161 #define SYS_MVFR0_EL1 sys_reg(3, 0, 0, 3, 0)
162 #define SYS_MVFR1_EL1 sys_reg(3, 0, 0, 3, 1)
163 #define SYS_MVFR2_EL1 sys_reg(3, 0, 0, 3, 2)
165 #define SYS_ID_AA64PFR0_EL1 sys_reg(3, 0, 0, 4, 0)
166 #define SYS_ID_AA64PFR1_EL1 sys_reg(3, 0, 0, 4, 1)
167 #define SYS_ID_AA64ZFR0_EL1 sys_reg(3, 0, 0, 4, 4)
169 #define SYS_ID_AA64DFR0_EL1 sys_reg(3, 0, 0, 5, 0)
170 #define SYS_ID_AA64DFR1_EL1 sys_reg(3, 0, 0, 5, 1)
172 #define SYS_ID_AA64AFR0_EL1 sys_reg(3, 0, 0, 5, 4)
173 #define SYS_ID_AA64AFR1_EL1 sys_reg(3, 0, 0, 5, 5)
175 #define SYS_ID_AA64ISAR0_EL1 sys_reg(3, 0, 0, 6, 0)
176 #define SYS_ID_AA64ISAR1_EL1 sys_reg(3, 0, 0, 6, 1)
178 #define SYS_ID_AA64MMFR0_EL1 sys_reg(3, 0, 0, 7, 0)
179 #define SYS_ID_AA64MMFR1_EL1 sys_reg(3, 0, 0, 7, 1)
180 #define SYS_ID_AA64MMFR2_EL1 sys_reg(3, 0, 0, 7, 2)
182 #define SYS_SCTLR_EL1 sys_reg(3, 0, 1, 0, 0)
183 #define SYS_ACTLR_EL1 sys_reg(3, 0, 1, 0, 1)
184 #define SYS_CPACR_EL1 sys_reg(3, 0, 1, 0, 2)
186 #define SYS_ZCR_EL1 sys_reg(3, 0, 1, 2, 0)
188 #define SYS_TTBR0_EL1 sys_reg(3, 0, 2, 0, 0)
189 #define SYS_TTBR1_EL1 sys_reg(3, 0, 2, 0, 1)
190 #define SYS_TCR_EL1 sys_reg(3, 0, 2, 0, 2)
192 #define SYS_APIAKEYLO_EL1 sys_reg(3, 0, 2, 1, 0)
193 #define SYS_APIAKEYHI_EL1 sys_reg(3, 0, 2, 1, 1)
194 #define SYS_APIBKEYLO_EL1 sys_reg(3, 0, 2, 1, 2)
195 #define SYS_APIBKEYHI_EL1 sys_reg(3, 0, 2, 1, 3)
197 #define SYS_APDAKEYLO_EL1 sys_reg(3, 0, 2, 2, 0)
198 #define SYS_APDAKEYHI_EL1 sys_reg(3, 0, 2, 2, 1)
199 #define SYS_APDBKEYLO_EL1 sys_reg(3, 0, 2, 2, 2)
200 #define SYS_APDBKEYHI_EL1 sys_reg(3, 0, 2, 2, 3)
202 #define SYS_APGAKEYLO_EL1 sys_reg(3, 0, 2, 3, 0)
203 #define SYS_APGAKEYHI_EL1 sys_reg(3, 0, 2, 3, 1)
205 #define SYS_ICC_PMR_EL1 sys_reg(3, 0, 4, 6, 0)
207 #define SYS_AFSR0_EL1 sys_reg(3, 0, 5, 1, 0)
208 #define SYS_AFSR1_EL1 sys_reg(3, 0, 5, 1, 1)
209 #define SYS_ESR_EL1 sys_reg(3, 0, 5, 2, 0)
211 #define SYS_ERRIDR_EL1 sys_reg(3, 0, 5, 3, 0)
212 #define SYS_ERRSELR_EL1 sys_reg(3, 0, 5, 3, 1)
213 #define SYS_ERXFR_EL1 sys_reg(3, 0, 5, 4, 0)
214 #define SYS_ERXCTLR_EL1 sys_reg(3, 0, 5, 4, 1)
215 #define SYS_ERXSTATUS_EL1 sys_reg(3, 0, 5, 4, 2)
216 #define SYS_ERXADDR_EL1 sys_reg(3, 0, 5, 4, 3)
217 #define SYS_ERXMISC0_EL1 sys_reg(3, 0, 5, 5, 0)
218 #define SYS_ERXMISC1_EL1 sys_reg(3, 0, 5, 5, 1)
220 #define SYS_FAR_EL1 sys_reg(3, 0, 6, 0, 0)
221 #define SYS_PAR_EL1 sys_reg(3, 0, 7, 4, 0)
223 /*** Statistical Profiling Extension ***/
225 #define SYS_PMSIDR_EL1 sys_reg(3, 0, 9, 9, 7)
226 #define SYS_PMSIDR_EL1_FE_SHIFT 0
227 #define SYS_PMSIDR_EL1_FT_SHIFT 1
228 #define SYS_PMSIDR_EL1_FL_SHIFT 2
229 #define SYS_PMSIDR_EL1_ARCHINST_SHIFT 3
230 #define SYS_PMSIDR_EL1_LDS_SHIFT 4
231 #define SYS_PMSIDR_EL1_ERND_SHIFT 5
232 #define SYS_PMSIDR_EL1_INTERVAL_SHIFT 8
233 #define SYS_PMSIDR_EL1_INTERVAL_MASK 0xfUL
234 #define SYS_PMSIDR_EL1_MAXSIZE_SHIFT 12
235 #define SYS_PMSIDR_EL1_MAXSIZE_MASK 0xfUL
236 #define SYS_PMSIDR_EL1_COUNTSIZE_SHIFT 16
237 #define SYS_PMSIDR_EL1_COUNTSIZE_MASK 0xfUL
239 #define SYS_PMBIDR_EL1 sys_reg(3, 0, 9, 10, 7)
240 #define SYS_PMBIDR_EL1_ALIGN_SHIFT 0
241 #define SYS_PMBIDR_EL1_ALIGN_MASK 0xfU
242 #define SYS_PMBIDR_EL1_P_SHIFT 4
243 #define SYS_PMBIDR_EL1_F_SHIFT 5
245 /* Sampling controls */
246 #define SYS_PMSCR_EL1 sys_reg(3, 0, 9, 9, 0)
247 #define SYS_PMSCR_EL1_E0SPE_SHIFT 0
248 #define SYS_PMSCR_EL1_E1SPE_SHIFT 1
249 #define SYS_PMSCR_EL1_CX_SHIFT 3
250 #define SYS_PMSCR_EL1_PA_SHIFT 4
251 #define SYS_PMSCR_EL1_TS_SHIFT 5
252 #define SYS_PMSCR_EL1_PCT_SHIFT 6
254 #define SYS_PMSCR_EL2 sys_reg(3, 4, 9, 9, 0)
255 #define SYS_PMSCR_EL2_E0HSPE_SHIFT 0
256 #define SYS_PMSCR_EL2_E2SPE_SHIFT 1
257 #define SYS_PMSCR_EL2_CX_SHIFT 3
258 #define SYS_PMSCR_EL2_PA_SHIFT 4
259 #define SYS_PMSCR_EL2_TS_SHIFT 5
260 #define SYS_PMSCR_EL2_PCT_SHIFT 6
262 #define SYS_PMSICR_EL1 sys_reg(3, 0, 9, 9, 2)
264 #define SYS_PMSIRR_EL1 sys_reg(3, 0, 9, 9, 3)
265 #define SYS_PMSIRR_EL1_RND_SHIFT 0
266 #define SYS_PMSIRR_EL1_INTERVAL_SHIFT 8
267 #define SYS_PMSIRR_EL1_INTERVAL_MASK 0xffffffUL
269 /* Filtering controls */
270 #define SYS_PMSFCR_EL1 sys_reg(3, 0, 9, 9, 4)
271 #define SYS_PMSFCR_EL1_FE_SHIFT 0
272 #define SYS_PMSFCR_EL1_FT_SHIFT 1
273 #define SYS_PMSFCR_EL1_FL_SHIFT 2
274 #define SYS_PMSFCR_EL1_B_SHIFT 16
275 #define SYS_PMSFCR_EL1_LD_SHIFT 17
276 #define SYS_PMSFCR_EL1_ST_SHIFT 18
278 #define SYS_PMSEVFR_EL1 sys_reg(3, 0, 9, 9, 5)
279 #define SYS_PMSEVFR_EL1_RES0 0x0000ffff00ff0f55UL
281 #define SYS_PMSLATFR_EL1 sys_reg(3, 0, 9, 9, 6)
282 #define SYS_PMSLATFR_EL1_MINLAT_SHIFT 0
284 /* Buffer controls */
285 #define SYS_PMBLIMITR_EL1 sys_reg(3, 0, 9, 10, 0)
286 #define SYS_PMBLIMITR_EL1_E_SHIFT 0
287 #define SYS_PMBLIMITR_EL1_FM_SHIFT 1
288 #define SYS_PMBLIMITR_EL1_FM_MASK 0x3UL
289 #define SYS_PMBLIMITR_EL1_FM_STOP_IRQ (0 << SYS_PMBLIMITR_EL1_FM_SHIFT)
291 #define SYS_PMBPTR_EL1 sys_reg(3, 0, 9, 10, 1)
293 /* Buffer error reporting */
294 #define SYS_PMBSR_EL1 sys_reg(3, 0, 9, 10, 3)
295 #define SYS_PMBSR_EL1_COLL_SHIFT 16
296 #define SYS_PMBSR_EL1_S_SHIFT 17
297 #define SYS_PMBSR_EL1_EA_SHIFT 18
298 #define SYS_PMBSR_EL1_DL_SHIFT 19
299 #define SYS_PMBSR_EL1_EC_SHIFT 26
300 #define SYS_PMBSR_EL1_EC_MASK 0x3fUL
302 #define SYS_PMBSR_EL1_EC_BUF (0x0UL << SYS_PMBSR_EL1_EC_SHIFT)
303 #define SYS_PMBSR_EL1_EC_FAULT_S1 (0x24UL << SYS_PMBSR_EL1_EC_SHIFT)
304 #define SYS_PMBSR_EL1_EC_FAULT_S2 (0x25UL << SYS_PMBSR_EL1_EC_SHIFT)
306 #define SYS_PMBSR_EL1_FAULT_FSC_SHIFT 0
307 #define SYS_PMBSR_EL1_FAULT_FSC_MASK 0x3fUL
309 #define SYS_PMBSR_EL1_BUF_BSC_SHIFT 0
310 #define SYS_PMBSR_EL1_BUF_BSC_MASK 0x3fUL
312 #define SYS_PMBSR_EL1_BUF_BSC_FULL (0x1UL << SYS_PMBSR_EL1_BUF_BSC_SHIFT)
314 /*** End of Statistical Profiling Extension ***/
316 #define SYS_PMINTENSET_EL1 sys_reg(3, 0, 9, 14, 1)
317 #define SYS_PMINTENCLR_EL1 sys_reg(3, 0, 9, 14, 2)
319 #define SYS_MAIR_EL1 sys_reg(3, 0, 10, 2, 0)
320 #define SYS_AMAIR_EL1 sys_reg(3, 0, 10, 3, 0)
322 #define SYS_LORSA_EL1 sys_reg(3, 0, 10, 4, 0)
323 #define SYS_LOREA_EL1 sys_reg(3, 0, 10, 4, 1)
324 #define SYS_LORN_EL1 sys_reg(3, 0, 10, 4, 2)
325 #define SYS_LORC_EL1 sys_reg(3, 0, 10, 4, 3)
326 #define SYS_LORID_EL1 sys_reg(3, 0, 10, 4, 7)
328 #define SYS_VBAR_EL1 sys_reg(3, 0, 12, 0, 0)
329 #define SYS_DISR_EL1 sys_reg(3, 0, 12, 1, 1)
331 #define SYS_ICC_IAR0_EL1 sys_reg(3, 0, 12, 8, 0)
332 #define SYS_ICC_EOIR0_EL1 sys_reg(3, 0, 12, 8, 1)
333 #define SYS_ICC_HPPIR0_EL1 sys_reg(3, 0, 12, 8, 2)
334 #define SYS_ICC_BPR0_EL1 sys_reg(3, 0, 12, 8, 3)
335 #define SYS_ICC_AP0Rn_EL1(n) sys_reg(3, 0, 12, 8, 4 | n)
336 #define SYS_ICC_AP0R0_EL1 SYS_ICC_AP0Rn_EL1(0)
337 #define SYS_ICC_AP0R1_EL1 SYS_ICC_AP0Rn_EL1(1)
338 #define SYS_ICC_AP0R2_EL1 SYS_ICC_AP0Rn_EL1(2)
339 #define SYS_ICC_AP0R3_EL1 SYS_ICC_AP0Rn_EL1(3)
340 #define SYS_ICC_AP1Rn_EL1(n) sys_reg(3, 0, 12, 9, n)
341 #define SYS_ICC_AP1R0_EL1 SYS_ICC_AP1Rn_EL1(0)
342 #define SYS_ICC_AP1R1_EL1 SYS_ICC_AP1Rn_EL1(1)
343 #define SYS_ICC_AP1R2_EL1 SYS_ICC_AP1Rn_EL1(2)
344 #define SYS_ICC_AP1R3_EL1 SYS_ICC_AP1Rn_EL1(3)
345 #define SYS_ICC_DIR_EL1 sys_reg(3, 0, 12, 11, 1)
346 #define SYS_ICC_RPR_EL1 sys_reg(3, 0, 12, 11, 3)
347 #define SYS_ICC_SGI1R_EL1 sys_reg(3, 0, 12, 11, 5)
348 #define SYS_ICC_ASGI1R_EL1 sys_reg(3, 0, 12, 11, 6)
349 #define SYS_ICC_SGI0R_EL1 sys_reg(3, 0, 12, 11, 7)
350 #define SYS_ICC_IAR1_EL1 sys_reg(3, 0, 12, 12, 0)
351 #define SYS_ICC_EOIR1_EL1 sys_reg(3, 0, 12, 12, 1)
352 #define SYS_ICC_HPPIR1_EL1 sys_reg(3, 0, 12, 12, 2)
353 #define SYS_ICC_BPR1_EL1 sys_reg(3, 0, 12, 12, 3)
354 #define SYS_ICC_CTLR_EL1 sys_reg(3, 0, 12, 12, 4)
355 #define SYS_ICC_SRE_EL1 sys_reg(3, 0, 12, 12, 5)
356 #define SYS_ICC_IGRPEN0_EL1 sys_reg(3, 0, 12, 12, 6)
357 #define SYS_ICC_IGRPEN1_EL1 sys_reg(3, 0, 12, 12, 7)
359 #define SYS_CONTEXTIDR_EL1 sys_reg(3, 0, 13, 0, 1)
360 #define SYS_TPIDR_EL1 sys_reg(3, 0, 13, 0, 4)
362 #define SYS_CNTKCTL_EL1 sys_reg(3, 0, 14, 1, 0)
364 #define SYS_CCSIDR_EL1 sys_reg(3, 1, 0, 0, 0)
365 #define SYS_CLIDR_EL1 sys_reg(3, 1, 0, 0, 1)
366 #define SYS_AIDR_EL1 sys_reg(3, 1, 0, 0, 7)
368 #define SYS_CSSELR_EL1 sys_reg(3, 2, 0, 0, 0)
370 #define SYS_CTR_EL0 sys_reg(3, 3, 0, 0, 1)
371 #define SYS_DCZID_EL0 sys_reg(3, 3, 0, 0, 7)
373 #define SYS_PMCR_EL0 sys_reg(3, 3, 9, 12, 0)
374 #define SYS_PMCNTENSET_EL0 sys_reg(3, 3, 9, 12, 1)
375 #define SYS_PMCNTENCLR_EL0 sys_reg(3, 3, 9, 12, 2)
376 #define SYS_PMOVSCLR_EL0 sys_reg(3, 3, 9, 12, 3)
377 #define SYS_PMSWINC_EL0 sys_reg(3, 3, 9, 12, 4)
378 #define SYS_PMSELR_EL0 sys_reg(3, 3, 9, 12, 5)
379 #define SYS_PMCEID0_EL0 sys_reg(3, 3, 9, 12, 6)
380 #define SYS_PMCEID1_EL0 sys_reg(3, 3, 9, 12, 7)
381 #define SYS_PMCCNTR_EL0 sys_reg(3, 3, 9, 13, 0)
382 #define SYS_PMXEVTYPER_EL0 sys_reg(3, 3, 9, 13, 1)
383 #define SYS_PMXEVCNTR_EL0 sys_reg(3, 3, 9, 13, 2)
384 #define SYS_PMUSERENR_EL0 sys_reg(3, 3, 9, 14, 0)
385 #define SYS_PMOVSSET_EL0 sys_reg(3, 3, 9, 14, 3)
387 #define SYS_TPIDR_EL0 sys_reg(3, 3, 13, 0, 2)
388 #define SYS_TPIDRRO_EL0 sys_reg(3, 3, 13, 0, 3)
390 #define SYS_CNTFRQ_EL0 sys_reg(3, 3, 14, 0, 0)
392 #define SYS_CNTP_TVAL_EL0 sys_reg(3, 3, 14, 2, 0)
393 #define SYS_CNTP_CTL_EL0 sys_reg(3, 3, 14, 2, 1)
394 #define SYS_CNTP_CVAL_EL0 sys_reg(3, 3, 14, 2, 2)
396 #define SYS_AARCH32_CNTP_TVAL sys_reg(0, 0, 14, 2, 0)
397 #define SYS_AARCH32_CNTP_CTL sys_reg(0, 0, 14, 2, 1)
398 #define SYS_AARCH32_CNTP_CVAL sys_reg(0, 2, 0, 14, 0)
400 #define __PMEV_op2(n) ((n) & 0x7)
401 #define __CNTR_CRm(n) (0x8 | (((n) >> 3) & 0x3))
402 #define SYS_PMEVCNTRn_EL0(n) sys_reg(3, 3, 14, __CNTR_CRm(n), __PMEV_op2(n))
403 #define __TYPER_CRm(n) (0xc | (((n) >> 3) & 0x3))
404 #define SYS_PMEVTYPERn_EL0(n) sys_reg(3, 3, 14, __TYPER_CRm(n), __PMEV_op2(n))
406 #define SYS_PMCCFILTR_EL0 sys_reg (3, 3, 14, 15, 7)
408 #define SYS_ZCR_EL2 sys_reg(3, 4, 1, 2, 0)
410 #define SYS_DACR32_EL2 sys_reg(3, 4, 3, 0, 0)
411 #define SYS_IFSR32_EL2 sys_reg(3, 4, 5, 0, 1)
412 #define SYS_VSESR_EL2 sys_reg(3, 4, 5, 2, 3)
413 #define SYS_FPEXC32_EL2 sys_reg(3, 4, 5, 3, 0)
415 #define SYS_VDISR_EL2 sys_reg(3, 4, 12, 1, 1)
416 #define __SYS__AP0Rx_EL2(x) sys_reg(3, 4, 12, 8, x)
417 #define SYS_ICH_AP0R0_EL2 __SYS__AP0Rx_EL2(0)
418 #define SYS_ICH_AP0R1_EL2 __SYS__AP0Rx_EL2(1)
419 #define SYS_ICH_AP0R2_EL2 __SYS__AP0Rx_EL2(2)
420 #define SYS_ICH_AP0R3_EL2 __SYS__AP0Rx_EL2(3)
422 #define __SYS__AP1Rx_EL2(x) sys_reg(3, 4, 12, 9, x)
423 #define SYS_ICH_AP1R0_EL2 __SYS__AP1Rx_EL2(0)
424 #define SYS_ICH_AP1R1_EL2 __SYS__AP1Rx_EL2(1)
425 #define SYS_ICH_AP1R2_EL2 __SYS__AP1Rx_EL2(2)
426 #define SYS_ICH_AP1R3_EL2 __SYS__AP1Rx_EL2(3)
428 #define SYS_ICH_VSEIR_EL2 sys_reg(3, 4, 12, 9, 4)
429 #define SYS_ICC_SRE_EL2 sys_reg(3, 4, 12, 9, 5)
430 #define SYS_ICH_HCR_EL2 sys_reg(3, 4, 12, 11, 0)
431 #define SYS_ICH_VTR_EL2 sys_reg(3, 4, 12, 11, 1)
432 #define SYS_ICH_MISR_EL2 sys_reg(3, 4, 12, 11, 2)
433 #define SYS_ICH_EISR_EL2 sys_reg(3, 4, 12, 11, 3)
434 #define SYS_ICH_ELRSR_EL2 sys_reg(3, 4, 12, 11, 5)
435 #define SYS_ICH_VMCR_EL2 sys_reg(3, 4, 12, 11, 7)
437 #define __SYS__LR0_EL2(x) sys_reg(3, 4, 12, 12, x)
438 #define SYS_ICH_LR0_EL2 __SYS__LR0_EL2(0)
439 #define SYS_ICH_LR1_EL2 __SYS__LR0_EL2(1)
440 #define SYS_ICH_LR2_EL2 __SYS__LR0_EL2(2)
441 #define SYS_ICH_LR3_EL2 __SYS__LR0_EL2(3)
442 #define SYS_ICH_LR4_EL2 __SYS__LR0_EL2(4)
443 #define SYS_ICH_LR5_EL2 __SYS__LR0_EL2(5)
444 #define SYS_ICH_LR6_EL2 __SYS__LR0_EL2(6)
445 #define SYS_ICH_LR7_EL2 __SYS__LR0_EL2(7)
447 #define __SYS__LR8_EL2(x) sys_reg(3, 4, 12, 13, x)
448 #define SYS_ICH_LR8_EL2 __SYS__LR8_EL2(0)
449 #define SYS_ICH_LR9_EL2 __SYS__LR8_EL2(1)
450 #define SYS_ICH_LR10_EL2 __SYS__LR8_EL2(2)
451 #define SYS_ICH_LR11_EL2 __SYS__LR8_EL2(3)
452 #define SYS_ICH_LR12_EL2 __SYS__LR8_EL2(4)
453 #define SYS_ICH_LR13_EL2 __SYS__LR8_EL2(5)
454 #define SYS_ICH_LR14_EL2 __SYS__LR8_EL2(6)
455 #define SYS_ICH_LR15_EL2 __SYS__LR8_EL2(7)
457 /* VHE encodings for architectural EL0/1 system registers */
458 #define SYS_ZCR_EL12 sys_reg(3, 5, 1, 2, 0)
460 /* Common SCTLR_ELx flags. */
461 #define SCTLR_ELx_DSSBS (_BITUL(44))
462 #define SCTLR_ELx_ENIA (_BITUL(31))
463 #define SCTLR_ELx_ENIB (_BITUL(30))
464 #define SCTLR_ELx_ENDA (_BITUL(27))
465 #define SCTLR_ELx_EE (_BITUL(25))
466 #define SCTLR_ELx_IESB (_BITUL(21))
467 #define SCTLR_ELx_WXN (_BITUL(19))
468 #define SCTLR_ELx_ENDB (_BITUL(13))
469 #define SCTLR_ELx_I (_BITUL(12))
470 #define SCTLR_ELx_SA (_BITUL(3))
471 #define SCTLR_ELx_C (_BITUL(2))
472 #define SCTLR_ELx_A (_BITUL(1))
473 #define SCTLR_ELx_M (_BITUL(0))
475 #define SCTLR_ELx_FLAGS (SCTLR_ELx_M | SCTLR_ELx_A | SCTLR_ELx_C | \
476 SCTLR_ELx_SA | SCTLR_ELx_I | SCTLR_ELx_IESB)
478 /* SCTLR_EL2 specific flags. */
479 #define SCTLR_EL2_RES1 ((_BITUL(4)) | (_BITUL(5)) | (_BITUL(11)) | (_BITUL(16)) | \
480 (_BITUL(18)) | (_BITUL(22)) | (_BITUL(23)) | (_BITUL(28)) | \
482 #define SCTLR_EL2_RES0 ((_BITUL(6)) | (_BITUL(7)) | (_BITUL(8)) | (_BITUL(9)) | \
483 (_BITUL(10)) | (_BITUL(13)) | (_BITUL(14)) | (_BITUL(15)) | \
484 (_BITUL(17)) | (_BITUL(20)) | (_BITUL(24)) | (_BITUL(26)) | \
485 (_BITUL(27)) | (_BITUL(30)) | (_BITUL(31)) | \
486 (0xffffefffUL << 32))
488 #ifdef CONFIG_CPU_BIG_ENDIAN
489 #define ENDIAN_SET_EL2 SCTLR_ELx_EE
490 #define ENDIAN_CLEAR_EL2 0
492 #define ENDIAN_SET_EL2 0
493 #define ENDIAN_CLEAR_EL2 SCTLR_ELx_EE
496 /* SCTLR_EL2 value used for the hyp-stub */
497 #define SCTLR_EL2_SET (SCTLR_ELx_IESB | ENDIAN_SET_EL2 | SCTLR_EL2_RES1)
498 #define SCTLR_EL2_CLEAR (SCTLR_ELx_M | SCTLR_ELx_A | SCTLR_ELx_C | \
499 SCTLR_ELx_SA | SCTLR_ELx_I | SCTLR_ELx_WXN | \
500 SCTLR_ELx_DSSBS | ENDIAN_CLEAR_EL2 | SCTLR_EL2_RES0)
502 #if (SCTLR_EL2_SET ^ SCTLR_EL2_CLEAR) != 0xffffffffffffffffUL
503 #error "Inconsistent SCTLR_EL2 set/clear bits"
506 /* SCTLR_EL1 specific flags. */
507 #define SCTLR_EL1_UCI (_BITUL(26))
508 #define SCTLR_EL1_E0E (_BITUL(24))
509 #define SCTLR_EL1_SPAN (_BITUL(23))
510 #define SCTLR_EL1_NTWE (_BITUL(18))
511 #define SCTLR_EL1_NTWI (_BITUL(16))
512 #define SCTLR_EL1_UCT (_BITUL(15))
513 #define SCTLR_EL1_DZE (_BITUL(14))
514 #define SCTLR_EL1_UMA (_BITUL(9))
515 #define SCTLR_EL1_SED (_BITUL(8))
516 #define SCTLR_EL1_ITD (_BITUL(7))
517 #define SCTLR_EL1_CP15BEN (_BITUL(5))
518 #define SCTLR_EL1_SA0 (_BITUL(4))
520 #define SCTLR_EL1_RES1 ((_BITUL(11)) | (_BITUL(20)) | (_BITUL(22)) | (_BITUL(28)) | \
522 #define SCTLR_EL1_RES0 ((_BITUL(6)) | (_BITUL(10)) | (_BITUL(13)) | (_BITUL(17)) | \
523 (_BITUL(27)) | (_BITUL(30)) | (_BITUL(31)) | \
524 (0xffffefffUL << 32))
526 #ifdef CONFIG_CPU_BIG_ENDIAN
527 #define ENDIAN_SET_EL1 (SCTLR_EL1_E0E | SCTLR_ELx_EE)
528 #define ENDIAN_CLEAR_EL1 0
530 #define ENDIAN_SET_EL1 0
531 #define ENDIAN_CLEAR_EL1 (SCTLR_EL1_E0E | SCTLR_ELx_EE)
534 #define SCTLR_EL1_SET (SCTLR_ELx_M | SCTLR_ELx_C | SCTLR_ELx_SA |\
535 SCTLR_EL1_SA0 | SCTLR_EL1_SED | SCTLR_ELx_I |\
536 SCTLR_EL1_DZE | SCTLR_EL1_UCT |\
537 SCTLR_EL1_NTWE | SCTLR_ELx_IESB | SCTLR_EL1_SPAN |\
538 ENDIAN_SET_EL1 | SCTLR_EL1_UCI | SCTLR_EL1_RES1)
539 #define SCTLR_EL1_CLEAR (SCTLR_ELx_A | SCTLR_EL1_CP15BEN | SCTLR_EL1_ITD |\
540 SCTLR_EL1_UMA | SCTLR_ELx_WXN | ENDIAN_CLEAR_EL1 |\
541 SCTLR_ELx_DSSBS | SCTLR_EL1_NTWI | SCTLR_EL1_RES0)
543 #if (SCTLR_EL1_SET ^ SCTLR_EL1_CLEAR) != 0xffffffffffffffffUL
544 #error "Inconsistent SCTLR_EL1 set/clear bits"
548 #define ID_AA64ISAR0_TS_SHIFT 52
549 #define ID_AA64ISAR0_FHM_SHIFT 48
550 #define ID_AA64ISAR0_DP_SHIFT 44
551 #define ID_AA64ISAR0_SM4_SHIFT 40
552 #define ID_AA64ISAR0_SM3_SHIFT 36
553 #define ID_AA64ISAR0_SHA3_SHIFT 32
554 #define ID_AA64ISAR0_RDM_SHIFT 28
555 #define ID_AA64ISAR0_ATOMICS_SHIFT 20
556 #define ID_AA64ISAR0_CRC32_SHIFT 16
557 #define ID_AA64ISAR0_SHA2_SHIFT 12
558 #define ID_AA64ISAR0_SHA1_SHIFT 8
559 #define ID_AA64ISAR0_AES_SHIFT 4
562 #define ID_AA64ISAR1_SB_SHIFT 36
563 #define ID_AA64ISAR1_GPI_SHIFT 28
564 #define ID_AA64ISAR1_GPA_SHIFT 24
565 #define ID_AA64ISAR1_LRCPC_SHIFT 20
566 #define ID_AA64ISAR1_FCMA_SHIFT 16
567 #define ID_AA64ISAR1_JSCVT_SHIFT 12
568 #define ID_AA64ISAR1_API_SHIFT 8
569 #define ID_AA64ISAR1_APA_SHIFT 4
570 #define ID_AA64ISAR1_DPB_SHIFT 0
572 #define ID_AA64ISAR1_APA_NI 0x0
573 #define ID_AA64ISAR1_APA_ARCHITECTED 0x1
574 #define ID_AA64ISAR1_API_NI 0x0
575 #define ID_AA64ISAR1_API_IMP_DEF 0x1
576 #define ID_AA64ISAR1_GPA_NI 0x0
577 #define ID_AA64ISAR1_GPA_ARCHITECTED 0x1
578 #define ID_AA64ISAR1_GPI_NI 0x0
579 #define ID_AA64ISAR1_GPI_IMP_DEF 0x1
582 #define ID_AA64PFR0_CSV3_SHIFT 60
583 #define ID_AA64PFR0_CSV2_SHIFT 56
584 #define ID_AA64PFR0_DIT_SHIFT 48
585 #define ID_AA64PFR0_SVE_SHIFT 32
586 #define ID_AA64PFR0_RAS_SHIFT 28
587 #define ID_AA64PFR0_GIC_SHIFT 24
588 #define ID_AA64PFR0_ASIMD_SHIFT 20
589 #define ID_AA64PFR0_FP_SHIFT 16
590 #define ID_AA64PFR0_EL3_SHIFT 12
591 #define ID_AA64PFR0_EL2_SHIFT 8
592 #define ID_AA64PFR0_EL1_SHIFT 4
593 #define ID_AA64PFR0_EL0_SHIFT 0
595 #define ID_AA64PFR0_SVE 0x1
596 #define ID_AA64PFR0_RAS_V1 0x1
597 #define ID_AA64PFR0_FP_NI 0xf
598 #define ID_AA64PFR0_FP_SUPPORTED 0x0
599 #define ID_AA64PFR0_ASIMD_NI 0xf
600 #define ID_AA64PFR0_ASIMD_SUPPORTED 0x0
601 #define ID_AA64PFR0_EL1_64BIT_ONLY 0x1
602 #define ID_AA64PFR0_EL0_64BIT_ONLY 0x1
603 #define ID_AA64PFR0_EL0_32BIT_64BIT 0x2
606 #define ID_AA64PFR1_SSBS_SHIFT 4
608 #define ID_AA64PFR1_SSBS_PSTATE_NI 0
609 #define ID_AA64PFR1_SSBS_PSTATE_ONLY 1
610 #define ID_AA64PFR1_SSBS_PSTATE_INSNS 2
613 #define ID_AA64ZFR0_SM4_SHIFT 40
614 #define ID_AA64ZFR0_SHA3_SHIFT 32
615 #define ID_AA64ZFR0_BITPERM_SHIFT 16
616 #define ID_AA64ZFR0_AES_SHIFT 4
617 #define ID_AA64ZFR0_SVEVER_SHIFT 0
619 #define ID_AA64ZFR0_SM4 0x1
620 #define ID_AA64ZFR0_SHA3 0x1
621 #define ID_AA64ZFR0_BITPERM 0x1
622 #define ID_AA64ZFR0_AES 0x1
623 #define ID_AA64ZFR0_AES_PMULL 0x2
624 #define ID_AA64ZFR0_SVEVER_SVE2 0x1
627 #define ID_AA64MMFR0_TGRAN4_SHIFT 28
628 #define ID_AA64MMFR0_TGRAN64_SHIFT 24
629 #define ID_AA64MMFR0_TGRAN16_SHIFT 20
630 #define ID_AA64MMFR0_BIGENDEL0_SHIFT 16
631 #define ID_AA64MMFR0_SNSMEM_SHIFT 12
632 #define ID_AA64MMFR0_BIGENDEL_SHIFT 8
633 #define ID_AA64MMFR0_ASID_SHIFT 4
634 #define ID_AA64MMFR0_PARANGE_SHIFT 0
636 #define ID_AA64MMFR0_TGRAN4_NI 0xf
637 #define ID_AA64MMFR0_TGRAN4_SUPPORTED 0x0
638 #define ID_AA64MMFR0_TGRAN64_NI 0xf
639 #define ID_AA64MMFR0_TGRAN64_SUPPORTED 0x0
640 #define ID_AA64MMFR0_TGRAN16_NI 0x0
641 #define ID_AA64MMFR0_TGRAN16_SUPPORTED 0x1
642 #define ID_AA64MMFR0_PARANGE_48 0x5
643 #define ID_AA64MMFR0_PARANGE_52 0x6
645 #ifdef CONFIG_ARM64_PA_BITS_52
646 #define ID_AA64MMFR0_PARANGE_MAX ID_AA64MMFR0_PARANGE_52
648 #define ID_AA64MMFR0_PARANGE_MAX ID_AA64MMFR0_PARANGE_48
652 #define ID_AA64MMFR1_PAN_SHIFT 20
653 #define ID_AA64MMFR1_LOR_SHIFT 16
654 #define ID_AA64MMFR1_HPD_SHIFT 12
655 #define ID_AA64MMFR1_VHE_SHIFT 8
656 #define ID_AA64MMFR1_VMIDBITS_SHIFT 4
657 #define ID_AA64MMFR1_HADBS_SHIFT 0
659 #define ID_AA64MMFR1_VMIDBITS_8 0
660 #define ID_AA64MMFR1_VMIDBITS_16 2
663 #define ID_AA64MMFR2_FWB_SHIFT 40
664 #define ID_AA64MMFR2_AT_SHIFT 32
665 #define ID_AA64MMFR2_LVA_SHIFT 16
666 #define ID_AA64MMFR2_IESB_SHIFT 12
667 #define ID_AA64MMFR2_LSM_SHIFT 8
668 #define ID_AA64MMFR2_UAO_SHIFT 4
669 #define ID_AA64MMFR2_CNP_SHIFT 0
672 #define ID_AA64DFR0_PMSVER_SHIFT 32
673 #define ID_AA64DFR0_CTX_CMPS_SHIFT 28
674 #define ID_AA64DFR0_WRPS_SHIFT 20
675 #define ID_AA64DFR0_BRPS_SHIFT 12
676 #define ID_AA64DFR0_PMUVER_SHIFT 8
677 #define ID_AA64DFR0_TRACEVER_SHIFT 4
678 #define ID_AA64DFR0_DEBUGVER_SHIFT 0
680 #define ID_ISAR5_RDM_SHIFT 24
681 #define ID_ISAR5_CRC32_SHIFT 16
682 #define ID_ISAR5_SHA2_SHIFT 12
683 #define ID_ISAR5_SHA1_SHIFT 8
684 #define ID_ISAR5_AES_SHIFT 4
685 #define ID_ISAR5_SEVL_SHIFT 0
687 #define MVFR0_FPROUND_SHIFT 28
688 #define MVFR0_FPSHVEC_SHIFT 24
689 #define MVFR0_FPSQRT_SHIFT 20
690 #define MVFR0_FPDIVIDE_SHIFT 16
691 #define MVFR0_FPTRAP_SHIFT 12
692 #define MVFR0_FPDP_SHIFT 8
693 #define MVFR0_FPSP_SHIFT 4
694 #define MVFR0_SIMD_SHIFT 0
696 #define MVFR1_SIMDFMAC_SHIFT 28
697 #define MVFR1_FPHP_SHIFT 24
698 #define MVFR1_SIMDHP_SHIFT 20
699 #define MVFR1_SIMDSP_SHIFT 16
700 #define MVFR1_SIMDINT_SHIFT 12
701 #define MVFR1_SIMDLS_SHIFT 8
702 #define MVFR1_FPDNAN_SHIFT 4
703 #define MVFR1_FPFTZ_SHIFT 0
706 #define ID_AA64MMFR0_TGRAN4_SHIFT 28
707 #define ID_AA64MMFR0_TGRAN64_SHIFT 24
708 #define ID_AA64MMFR0_TGRAN16_SHIFT 20
710 #define ID_AA64MMFR0_TGRAN4_NI 0xf
711 #define ID_AA64MMFR0_TGRAN4_SUPPORTED 0x0
712 #define ID_AA64MMFR0_TGRAN64_NI 0xf
713 #define ID_AA64MMFR0_TGRAN64_SUPPORTED 0x0
714 #define ID_AA64MMFR0_TGRAN16_NI 0x0
715 #define ID_AA64MMFR0_TGRAN16_SUPPORTED 0x1
717 #if defined(CONFIG_ARM64_4K_PAGES)
718 #define ID_AA64MMFR0_TGRAN_SHIFT ID_AA64MMFR0_TGRAN4_SHIFT
719 #define ID_AA64MMFR0_TGRAN_SUPPORTED ID_AA64MMFR0_TGRAN4_SUPPORTED
720 #elif defined(CONFIG_ARM64_16K_PAGES)
721 #define ID_AA64MMFR0_TGRAN_SHIFT ID_AA64MMFR0_TGRAN16_SHIFT
722 #define ID_AA64MMFR0_TGRAN_SUPPORTED ID_AA64MMFR0_TGRAN16_SUPPORTED
723 #elif defined(CONFIG_ARM64_64K_PAGES)
724 #define ID_AA64MMFR0_TGRAN_SHIFT ID_AA64MMFR0_TGRAN64_SHIFT
725 #define ID_AA64MMFR0_TGRAN_SUPPORTED ID_AA64MMFR0_TGRAN64_SUPPORTED
730 * The ZCR_ELx_LEN_* definitions intentionally include bits [8:4] which
731 * are reserved by the SVE architecture for future expansion of the LEN
732 * field, with compatible semantics.
734 #define ZCR_ELx_LEN_SHIFT 0
735 #define ZCR_ELx_LEN_SIZE 9
736 #define ZCR_ELx_LEN_MASK 0x1ff
738 #define CPACR_EL1_ZEN_EL1EN (_BITUL(16)) /* enable EL1 access */
739 #define CPACR_EL1_ZEN_EL0EN (_BITUL(17)) /* enable EL0 access, if EL1EN set */
740 #define CPACR_EL1_ZEN (CPACR_EL1_ZEN_EL1EN | CPACR_EL1_ZEN_EL0EN)
743 /* Safe value for MPIDR_EL1: Bit31:RES1, Bit30:U:0, Bit24:MT:0 */
744 #define SYS_MPIDR_SAFE_VAL (_BITUL(31))
748 .irp num,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30
749 .equ .L__reg_num_x\num, \num
751 .equ .L__reg_num_xzr, 31
753 .macro mrs_s, rt, sreg
754 __emit_inst(0xd5200000|(\sreg)|(.L__reg_num_\rt))
757 .macro msr_s, sreg, rt
758 __emit_inst(0xd5000000|(\sreg)|(.L__reg_num_\rt))
763 #include <linux/build_bug.h>
764 #include <linux/types.h>
766 #define __DEFINE_MRS_MSR_S_REGNUM \
767 " .irp num,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30\n" \
768 " .equ .L__reg_num_x\\num, \\num\n" \
770 " .equ .L__reg_num_xzr, 31\n"
772 #define DEFINE_MRS_S \
773 __DEFINE_MRS_MSR_S_REGNUM \
774 " .macro mrs_s, rt, sreg\n" \
775 __emit_inst(0xd5200000|(\\sreg)|(.L__reg_num_\\rt)) \
778 #define DEFINE_MSR_S \
779 __DEFINE_MRS_MSR_S_REGNUM \
780 " .macro msr_s, sreg, rt\n" \
781 __emit_inst(0xd5000000|(\\sreg)|(.L__reg_num_\\rt)) \
784 #define UNDEFINE_MRS_S \
787 #define UNDEFINE_MSR_S \
790 #define __mrs_s(v, r) \
792 " mrs_s " v ", " __stringify(r) "\n" \
795 #define __msr_s(r, v) \
797 " msr_s " __stringify(r) ", " v "\n" \
801 * Unlike read_cpuid, calls to read_sysreg are never expected to be
802 * optimized away or replaced with synthetic values.
804 #define read_sysreg(r) ({ \
806 asm volatile("mrs %0, " __stringify(r) : "=r" (__val)); \
811 * The "Z" constraint normally means a zero immediate, but when combined with
812 * the "%x0" template means XZR.
814 #define write_sysreg(v, r) do { \
815 u64 __val = (u64)(v); \
816 asm volatile("msr " __stringify(r) ", %x0" \
821 * For registers without architectural names, or simply unsupported by
824 #define read_sysreg_s(r) ({ \
826 asm volatile(__mrs_s("%0", r) : "=r" (__val)); \
830 #define write_sysreg_s(v, r) do { \
831 u64 __val = (u64)(v); \
832 asm volatile(__msr_s(r, "%x0") : : "rZ" (__val)); \
836 * Modify bits in a sysreg. Bits in the clear mask are zeroed, then bits in the
837 * set mask are set. Other bits are left as-is.
839 #define sysreg_clear_set(sysreg, clear, set) do { \
840 u64 __scs_val = read_sysreg(sysreg); \
841 u64 __scs_new = (__scs_val & ~(u64)(clear)) | (set); \
842 if (__scs_new != __scs_val) \
843 write_sysreg(__scs_new, sysreg); \
848 #endif /* __ASM_SYSREG_H */