/*
 * Macros for accessing system registers with older binutils.
 *
 * Copyright (C) 2014 ARM Ltd.
 * Author: Catalin Marinas <catalin.marinas@arm.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __ASM_SYSREG_H
#define __ASM_SYSREG_H

#include <linux/stringify.h>

/*
 * ARMv8 ARM reserves the following encoding for system registers:
 * (Ref: ARMv8 ARM, Section: "System instruction class encoding overview",
 *  C5.2, version:ARM DDI 0487A.f)
 *      [20-19] : Op0
 *      [18-16] : Op1
 *      [15-12] : CRn
 *      [11-8]  : CRm
 *      [7-5]   : Op2
 */
#define Op0_shift       19
#define Op0_mask        0x3
#define Op1_shift       16
#define Op1_mask        0x7
#define CRn_shift       12
#define CRn_mask        0xf
#define CRm_shift       8
#define CRm_mask        0xf
#define Op2_shift       5
#define Op2_mask        0x7

#define sys_reg(op0, op1, crn, crm, op2) \
        (((op0) << Op0_shift) | ((op1) << Op1_shift) | \
         ((crn) << CRn_shift) | ((crm) << CRm_shift) | \
         ((op2) << Op2_shift))

#define sys_insn        sys_reg

#define sys_reg_Op0(id) (((id) >> Op0_shift) & Op0_mask)
#define sys_reg_Op1(id) (((id) >> Op1_shift) & Op1_mask)
#define sys_reg_CRn(id) (((id) >> CRn_shift) & CRn_mask)
#define sys_reg_CRm(id) (((id) >> CRm_shift) & CRm_mask)
#define sys_reg_Op2(id) (((id) >> Op2_shift) & Op2_mask)

#ifndef CONFIG_BROKEN_GAS_INST

#ifdef __ASSEMBLY__
#define __emit_inst(x)                  .inst (x)
#else
#define __emit_inst(x)                  ".inst " __stringify((x)) "\n\t"
#endif

#else  /* CONFIG_BROKEN_GAS_INST */

#ifndef CONFIG_CPU_BIG_ENDIAN
#define __INSTR_BSWAP(x)                (x)
#else  /* CONFIG_CPU_BIG_ENDIAN */
#define __INSTR_BSWAP(x)                ((((x) << 24) & 0xff000000)     | \
                                         (((x) <<  8) & 0x00ff0000)     | \
                                         (((x) >>  8) & 0x0000ff00)     | \
                                         (((x) >> 24) & 0x000000ff))
#endif  /* CONFIG_CPU_BIG_ENDIAN */

#ifdef __ASSEMBLY__
#define __emit_inst(x)                  .long __INSTR_BSWAP(x)
#else  /* __ASSEMBLY__ */
#define __emit_inst(x)                  ".long " __stringify(__INSTR_BSWAP(x)) "\n\t"
#endif  /* __ASSEMBLY__ */

#endif  /* CONFIG_BROKEN_GAS_INST */

#define REG_PSTATE_PAN_IMM              sys_reg(0, 0, 4, 0, 4)
#define REG_PSTATE_UAO_IMM              sys_reg(0, 0, 4, 0, 3)

#define SET_PSTATE_PAN(x) __emit_inst(0xd5000000 | REG_PSTATE_PAN_IMM | \
                                      (!!x)<<8 | 0x1f)
#define SET_PSTATE_UAO(x) __emit_inst(0xd5000000 | REG_PSTATE_UAO_IMM | \
                                      (!!x)<<8 | 0x1f)

#define SYS_DC_ISW                      sys_insn(1, 0, 7, 6, 2)
#define SYS_DC_CSW                      sys_insn(1, 0, 7, 10, 2)
#define SYS_DC_CISW                     sys_insn(1, 0, 7, 14, 2)

#define SYS_OSDTRRX_EL1                 sys_reg(2, 0, 0, 0, 2)
#define SYS_MDCCINT_EL1                 sys_reg(2, 0, 0, 2, 0)
#define SYS_MDSCR_EL1                   sys_reg(2, 0, 0, 2, 2)
#define SYS_OSDTRTX_EL1                 sys_reg(2, 0, 0, 3, 2)
#define SYS_OSECCR_EL1                  sys_reg(2, 0, 0, 6, 2)
#define SYS_DBGBVRn_EL1(n)              sys_reg(2, 0, 0, n, 4)
#define SYS_DBGBCRn_EL1(n)              sys_reg(2, 0, 0, n, 5)
#define SYS_DBGWVRn_EL1(n)              sys_reg(2, 0, 0, n, 6)
#define SYS_DBGWCRn_EL1(n)              sys_reg(2, 0, 0, n, 7)
#define SYS_MDRAR_EL1                   sys_reg(2, 0, 1, 0, 0)
#define SYS_OSLAR_EL1                   sys_reg(2, 0, 1, 0, 4)
#define SYS_OSLSR_EL1                   sys_reg(2, 0, 1, 1, 4)
#define SYS_OSDLR_EL1                   sys_reg(2, 0, 1, 3, 4)
#define SYS_DBGPRCR_EL1                 sys_reg(2, 0, 1, 4, 4)
#define SYS_DBGCLAIMSET_EL1             sys_reg(2, 0, 7, 8, 6)
#define SYS_DBGCLAIMCLR_EL1             sys_reg(2, 0, 7, 9, 6)
#define SYS_DBGAUTHSTATUS_EL1           sys_reg(2, 0, 7, 14, 6)
#define SYS_MDCCSR_EL0                  sys_reg(2, 3, 0, 1, 0)
#define SYS_DBGDTR_EL0                  sys_reg(2, 3, 0, 4, 0)
#define SYS_DBGDTRRX_EL0                sys_reg(2, 3, 0, 5, 0)
#define SYS_DBGDTRTX_EL0                sys_reg(2, 3, 0, 5, 0)
#define SYS_DBGVCR32_EL2                sys_reg(2, 4, 0, 7, 0)

#define SYS_MIDR_EL1                    sys_reg(3, 0, 0, 0, 0)
#define SYS_MPIDR_EL1                   sys_reg(3, 0, 0, 0, 5)
#define SYS_REVIDR_EL1                  sys_reg(3, 0, 0, 0, 6)

#define SYS_ID_PFR0_EL1                 sys_reg(3, 0, 0, 1, 0)
#define SYS_ID_PFR1_EL1                 sys_reg(3, 0, 0, 1, 1)
#define SYS_ID_DFR0_EL1                 sys_reg(3, 0, 0, 1, 2)
#define SYS_ID_AFR0_EL1                 sys_reg(3, 0, 0, 1, 3)
#define SYS_ID_MMFR0_EL1                sys_reg(3, 0, 0, 1, 4)
#define SYS_ID_MMFR1_EL1                sys_reg(3, 0, 0, 1, 5)
#define SYS_ID_MMFR2_EL1                sys_reg(3, 0, 0, 1, 6)
#define SYS_ID_MMFR3_EL1                sys_reg(3, 0, 0, 1, 7)

#define SYS_ID_ISAR0_EL1                sys_reg(3, 0, 0, 2, 0)
#define SYS_ID_ISAR1_EL1                sys_reg(3, 0, 0, 2, 1)
#define SYS_ID_ISAR2_EL1                sys_reg(3, 0, 0, 2, 2)
#define SYS_ID_ISAR3_EL1                sys_reg(3, 0, 0, 2, 3)
#define SYS_ID_ISAR4_EL1                sys_reg(3, 0, 0, 2, 4)
#define SYS_ID_ISAR5_EL1                sys_reg(3, 0, 0, 2, 5)
#define SYS_ID_MMFR4_EL1                sys_reg(3, 0, 0, 2, 6)

#define SYS_MVFR0_EL1                   sys_reg(3, 0, 0, 3, 0)
#define SYS_MVFR1_EL1                   sys_reg(3, 0, 0, 3, 1)
#define SYS_MVFR2_EL1                   sys_reg(3, 0, 0, 3, 2)

#define SYS_ID_AA64PFR0_EL1             sys_reg(3, 0, 0, 4, 0)
#define SYS_ID_AA64PFR1_EL1             sys_reg(3, 0, 0, 4, 1)

#define SYS_ID_AA64DFR0_EL1             sys_reg(3, 0, 0, 5, 0)
#define SYS_ID_AA64DFR1_EL1             sys_reg(3, 0, 0, 5, 1)

#define SYS_ID_AA64ISAR0_EL1            sys_reg(3, 0, 0, 6, 0)
#define SYS_ID_AA64ISAR1_EL1            sys_reg(3, 0, 0, 6, 1)

#define SYS_ID_AA64MMFR0_EL1            sys_reg(3, 0, 0, 7, 0)
#define SYS_ID_AA64MMFR1_EL1            sys_reg(3, 0, 0, 7, 1)
#define SYS_ID_AA64MMFR2_EL1            sys_reg(3, 0, 0, 7, 2)

#define SYS_SCTLR_EL1                   sys_reg(3, 0, 1, 0, 0)
#define SYS_ACTLR_EL1                   sys_reg(3, 0, 1, 0, 1)
#define SYS_CPACR_EL1                   sys_reg(3, 0, 1, 0, 2)

#define SYS_TTBR0_EL1                   sys_reg(3, 0, 2, 0, 0)
#define SYS_TTBR1_EL1                   sys_reg(3, 0, 2, 0, 1)
#define SYS_TCR_EL1                     sys_reg(3, 0, 2, 0, 2)

#define SYS_ICC_PMR_EL1                 sys_reg(3, 0, 4, 6, 0)

#define SYS_AFSR0_EL1                   sys_reg(3, 0, 5, 1, 0)
#define SYS_AFSR1_EL1                   sys_reg(3, 0, 5, 1, 1)
#define SYS_ESR_EL1                     sys_reg(3, 0, 5, 2, 0)
#define SYS_FAR_EL1                     sys_reg(3, 0, 6, 0, 0)
#define SYS_PAR_EL1                     sys_reg(3, 0, 7, 4, 0)

#define SYS_PMINTENSET_EL1              sys_reg(3, 0, 9, 14, 1)
#define SYS_PMINTENCLR_EL1              sys_reg(3, 0, 9, 14, 2)

#define SYS_MAIR_EL1                    sys_reg(3, 0, 10, 2, 0)
#define SYS_AMAIR_EL1                   sys_reg(3, 0, 10, 3, 0)

#define SYS_VBAR_EL1                    sys_reg(3, 0, 12, 0, 0)

#define SYS_ICC_IAR0_EL1                sys_reg(3, 0, 12, 8, 0)
#define SYS_ICC_EOIR0_EL1               sys_reg(3, 0, 12, 8, 1)
#define SYS_ICC_HPPIR0_EL1              sys_reg(3, 0, 12, 8, 2)
#define SYS_ICC_BPR0_EL1                sys_reg(3, 0, 12, 8, 3)
#define SYS_ICC_AP0Rn_EL1(n)            sys_reg(3, 0, 12, 8, 4 | n)
#define SYS_ICC_AP0R0_EL1               SYS_ICC_AP0Rn_EL1(0)
#define SYS_ICC_AP0R1_EL1               SYS_ICC_AP0Rn_EL1(1)
#define SYS_ICC_AP0R2_EL1               SYS_ICC_AP0Rn_EL1(2)
#define SYS_ICC_AP0R3_EL1               SYS_ICC_AP0Rn_EL1(3)
#define SYS_ICC_AP1Rn_EL1(n)            sys_reg(3, 0, 12, 9, n)
#define SYS_ICC_AP1R0_EL1               SYS_ICC_AP1Rn_EL1(0)
#define SYS_ICC_AP1R1_EL1               SYS_ICC_AP1Rn_EL1(1)
#define SYS_ICC_AP1R2_EL1               SYS_ICC_AP1Rn_EL1(2)
#define SYS_ICC_AP1R3_EL1               SYS_ICC_AP1Rn_EL1(3)
#define SYS_ICC_DIR_EL1                 sys_reg(3, 0, 12, 11, 1)
#define SYS_ICC_RPR_EL1                 sys_reg(3, 0, 12, 11, 3)
#define SYS_ICC_SGI1R_EL1               sys_reg(3, 0, 12, 11, 5)
#define SYS_ICC_IAR1_EL1                sys_reg(3, 0, 12, 12, 0)
#define SYS_ICC_EOIR1_EL1               sys_reg(3, 0, 12, 12, 1)
#define SYS_ICC_HPPIR1_EL1              sys_reg(3, 0, 12, 12, 2)
#define SYS_ICC_BPR1_EL1                sys_reg(3, 0, 12, 12, 3)
#define SYS_ICC_CTLR_EL1                sys_reg(3, 0, 12, 12, 4)
#define SYS_ICC_SRE_EL1                 sys_reg(3, 0, 12, 12, 5)
#define SYS_ICC_IGRPEN0_EL1             sys_reg(3, 0, 12, 12, 6)
#define SYS_ICC_IGRPEN1_EL1             sys_reg(3, 0, 12, 12, 7)

#define SYS_CONTEXTIDR_EL1              sys_reg(3, 0, 13, 0, 1)
#define SYS_TPIDR_EL1                   sys_reg(3, 0, 13, 0, 4)

#define SYS_CNTKCTL_EL1                 sys_reg(3, 0, 14, 1, 0)

#define SYS_CLIDR_EL1                   sys_reg(3, 1, 0, 0, 1)
#define SYS_AIDR_EL1                    sys_reg(3, 1, 0, 0, 7)

#define SYS_CSSELR_EL1                  sys_reg(3, 2, 0, 0, 0)

#define SYS_CTR_EL0                     sys_reg(3, 3, 0, 0, 1)
#define SYS_DCZID_EL0                   sys_reg(3, 3, 0, 0, 7)

#define SYS_PMCR_EL0                    sys_reg(3, 3, 9, 12, 0)
#define SYS_PMCNTENSET_EL0              sys_reg(3, 3, 9, 12, 1)
#define SYS_PMCNTENCLR_EL0              sys_reg(3, 3, 9, 12, 2)
#define SYS_PMOVSCLR_EL0                sys_reg(3, 3, 9, 12, 3)
#define SYS_PMSWINC_EL0                 sys_reg(3, 3, 9, 12, 4)
#define SYS_PMSELR_EL0                  sys_reg(3, 3, 9, 12, 5)
#define SYS_PMCEID0_EL0                 sys_reg(3, 3, 9, 12, 6)
#define SYS_PMCEID1_EL0                 sys_reg(3, 3, 9, 12, 7)
#define SYS_PMCCNTR_EL0                 sys_reg(3, 3, 9, 13, 0)
#define SYS_PMXEVTYPER_EL0              sys_reg(3, 3, 9, 13, 1)
#define SYS_PMXEVCNTR_EL0               sys_reg(3, 3, 9, 13, 2)
#define SYS_PMUSERENR_EL0               sys_reg(3, 3, 9, 14, 0)
#define SYS_PMOVSSET_EL0                sys_reg(3, 3, 9, 14, 3)

#define SYS_TPIDR_EL0                   sys_reg(3, 3, 13, 0, 2)
#define SYS_TPIDRRO_EL0                 sys_reg(3, 3, 13, 0, 3)

#define SYS_CNTFRQ_EL0                  sys_reg(3, 3, 14, 0, 0)

#define SYS_CNTP_TVAL_EL0               sys_reg(3, 3, 14, 2, 0)
#define SYS_CNTP_CTL_EL0                sys_reg(3, 3, 14, 2, 1)
#define SYS_CNTP_CVAL_EL0               sys_reg(3, 3, 14, 2, 2)

#define __PMEV_op2(n)                   ((n) & 0x7)
#define __CNTR_CRm(n)                   (0x8 | (((n) >> 3) & 0x3))
#define SYS_PMEVCNTRn_EL0(n)            sys_reg(3, 3, 14, __CNTR_CRm(n), __PMEV_op2(n))
#define __TYPER_CRm(n)                  (0xc | (((n) >> 3) & 0x3))
#define SYS_PMEVTYPERn_EL0(n)           sys_reg(3, 3, 14, __TYPER_CRm(n), __PMEV_op2(n))

#define SYS_PMCCFILTR_EL0               sys_reg (3, 3, 14, 15, 7)

#define SYS_DACR32_EL2                  sys_reg(3, 4, 3, 0, 0)
#define SYS_IFSR32_EL2                  sys_reg(3, 4, 5, 0, 1)
#define SYS_FPEXC32_EL2                 sys_reg(3, 4, 5, 3, 0)

#define __SYS__AP0Rx_EL2(x)             sys_reg(3, 4, 12, 8, x)
#define SYS_ICH_AP0R0_EL2               __SYS__AP0Rx_EL2(0)
#define SYS_ICH_AP0R1_EL2               __SYS__AP0Rx_EL2(1)
#define SYS_ICH_AP0R2_EL2               __SYS__AP0Rx_EL2(2)
#define SYS_ICH_AP0R3_EL2               __SYS__AP0Rx_EL2(3)

#define __SYS__AP1Rx_EL2(x)             sys_reg(3, 4, 12, 9, x)
#define SYS_ICH_AP1R0_EL2               __SYS__AP1Rx_EL2(0)
#define SYS_ICH_AP1R1_EL2               __SYS__AP1Rx_EL2(1)
#define SYS_ICH_AP1R2_EL2               __SYS__AP1Rx_EL2(2)
#define SYS_ICH_AP1R3_EL2               __SYS__AP1Rx_EL2(3)

#define SYS_ICH_VSEIR_EL2               sys_reg(3, 4, 12, 9, 4)
#define SYS_ICC_SRE_EL2                 sys_reg(3, 4, 12, 9, 5)
#define SYS_ICH_HCR_EL2                 sys_reg(3, 4, 12, 11, 0)
#define SYS_ICH_VTR_EL2                 sys_reg(3, 4, 12, 11, 1)
#define SYS_ICH_MISR_EL2                sys_reg(3, 4, 12, 11, 2)
#define SYS_ICH_EISR_EL2                sys_reg(3, 4, 12, 11, 3)
#define SYS_ICH_ELSR_EL2                sys_reg(3, 4, 12, 11, 5)
#define SYS_ICH_VMCR_EL2                sys_reg(3, 4, 12, 11, 7)

#define __SYS__LR0_EL2(x)               sys_reg(3, 4, 12, 12, x)
#define SYS_ICH_LR0_EL2                 __SYS__LR0_EL2(0)
#define SYS_ICH_LR1_EL2                 __SYS__LR0_EL2(1)
#define SYS_ICH_LR2_EL2                 __SYS__LR0_EL2(2)
#define SYS_ICH_LR3_EL2                 __SYS__LR0_EL2(3)
#define SYS_ICH_LR4_EL2                 __SYS__LR0_EL2(4)
#define SYS_ICH_LR5_EL2                 __SYS__LR0_EL2(5)
#define SYS_ICH_LR6_EL2                 __SYS__LR0_EL2(6)
#define SYS_ICH_LR7_EL2                 __SYS__LR0_EL2(7)

#define __SYS__LR8_EL2(x)               sys_reg(3, 4, 12, 13, x)
#define SYS_ICH_LR8_EL2                 __SYS__LR8_EL2(0)
#define SYS_ICH_LR9_EL2                 __SYS__LR8_EL2(1)
#define SYS_ICH_LR10_EL2                __SYS__LR8_EL2(2)
#define SYS_ICH_LR11_EL2                __SYS__LR8_EL2(3)
#define SYS_ICH_LR12_EL2                __SYS__LR8_EL2(4)
#define SYS_ICH_LR13_EL2                __SYS__LR8_EL2(5)
#define SYS_ICH_LR14_EL2                __SYS__LR8_EL2(6)
#define SYS_ICH_LR15_EL2                __SYS__LR8_EL2(7)

/* Common SCTLR_ELx flags. */
#define SCTLR_ELx_EE    (1 << 25)
#define SCTLR_ELx_I     (1 << 12)
#define SCTLR_ELx_SA    (1 << 3)
#define SCTLR_ELx_C     (1 << 2)
#define SCTLR_ELx_A     (1 << 1)
#define SCTLR_ELx_M     1

#define SCTLR_EL2_RES1  ((1 << 4)  | (1 << 5)  | (1 << 11) | (1 << 16) | \
                         (1 << 18) | (1 << 22) | (1 << 23) | (1 << 28) | \
                         (1 << 29))

#define SCTLR_ELx_FLAGS (SCTLR_ELx_M | SCTLR_ELx_A | SCTLR_ELx_C | \
                         SCTLR_ELx_SA | SCTLR_ELx_I)

/* SCTLR_EL1 specific flags. */
#define SCTLR_EL1_UCI           (1 << 26)
#define SCTLR_EL1_SPAN          (1 << 23)
#define SCTLR_EL1_UCT           (1 << 15)
#define SCTLR_EL1_SED           (1 << 8)
#define SCTLR_EL1_CP15BEN       (1 << 5)

/* id_aa64isar0 */
#define ID_AA64ISAR0_RDM_SHIFT          28
#define ID_AA64ISAR0_ATOMICS_SHIFT      20
#define ID_AA64ISAR0_CRC32_SHIFT        16
#define ID_AA64ISAR0_SHA2_SHIFT         12
#define ID_AA64ISAR0_SHA1_SHIFT         8
#define ID_AA64ISAR0_AES_SHIFT          4

/* id_aa64isar1 */
#define ID_AA64ISAR1_LRCPC_SHIFT        20
#define ID_AA64ISAR1_FCMA_SHIFT         16
#define ID_AA64ISAR1_JSCVT_SHIFT        12

/* id_aa64pfr0 */
#define ID_AA64PFR0_GIC_SHIFT           24
#define ID_AA64PFR0_ASIMD_SHIFT         20
#define ID_AA64PFR0_FP_SHIFT            16
#define ID_AA64PFR0_EL3_SHIFT           12
#define ID_AA64PFR0_EL2_SHIFT           8
#define ID_AA64PFR0_EL1_SHIFT           4
#define ID_AA64PFR0_EL0_SHIFT           0

#define ID_AA64PFR0_FP_NI               0xf
#define ID_AA64PFR0_FP_SUPPORTED        0x0
#define ID_AA64PFR0_ASIMD_NI            0xf
#define ID_AA64PFR0_ASIMD_SUPPORTED     0x0
#define ID_AA64PFR0_EL1_64BIT_ONLY      0x1
#define ID_AA64PFR0_EL0_64BIT_ONLY      0x1
#define ID_AA64PFR0_EL0_32BIT_64BIT     0x2

/* id_aa64mmfr0 */
#define ID_AA64MMFR0_TGRAN4_SHIFT       28
#define ID_AA64MMFR0_TGRAN64_SHIFT      24
#define ID_AA64MMFR0_TGRAN16_SHIFT      20
#define ID_AA64MMFR0_BIGENDEL0_SHIFT    16
#define ID_AA64MMFR0_SNSMEM_SHIFT       12
#define ID_AA64MMFR0_BIGENDEL_SHIFT     8
#define ID_AA64MMFR0_ASID_SHIFT         4
#define ID_AA64MMFR0_PARANGE_SHIFT      0

#define ID_AA64MMFR0_TGRAN4_NI          0xf
#define ID_AA64MMFR0_TGRAN4_SUPPORTED   0x0
#define ID_AA64MMFR0_TGRAN64_NI         0xf
#define ID_AA64MMFR0_TGRAN64_SUPPORTED  0x0
#define ID_AA64MMFR0_TGRAN16_NI         0x0
#define ID_AA64MMFR0_TGRAN16_SUPPORTED  0x1

/* id_aa64mmfr1 */
#define ID_AA64MMFR1_PAN_SHIFT          20
#define ID_AA64MMFR1_LOR_SHIFT          16
#define ID_AA64MMFR1_HPD_SHIFT          12
#define ID_AA64MMFR1_VHE_SHIFT          8
#define ID_AA64MMFR1_VMIDBITS_SHIFT     4
#define ID_AA64MMFR1_HADBS_SHIFT        0

#define ID_AA64MMFR1_VMIDBITS_8         0
#define ID_AA64MMFR1_VMIDBITS_16        2

/* id_aa64mmfr2 */
#define ID_AA64MMFR2_LVA_SHIFT          16
#define ID_AA64MMFR2_IESB_SHIFT         12
#define ID_AA64MMFR2_LSM_SHIFT          8
#define ID_AA64MMFR2_UAO_SHIFT          4
#define ID_AA64MMFR2_CNP_SHIFT          0

/* id_aa64dfr0 */
#define ID_AA64DFR0_PMSVER_SHIFT        32
#define ID_AA64DFR0_CTX_CMPS_SHIFT      28
#define ID_AA64DFR0_WRPS_SHIFT          20
#define ID_AA64DFR0_BRPS_SHIFT          12
#define ID_AA64DFR0_PMUVER_SHIFT        8
#define ID_AA64DFR0_TRACEVER_SHIFT      4
#define ID_AA64DFR0_DEBUGVER_SHIFT      0

#define ID_ISAR5_RDM_SHIFT              24
#define ID_ISAR5_CRC32_SHIFT            16
#define ID_ISAR5_SHA2_SHIFT             12
#define ID_ISAR5_SHA1_SHIFT             8
#define ID_ISAR5_AES_SHIFT              4
#define ID_ISAR5_SEVL_SHIFT             0

#define MVFR0_FPROUND_SHIFT             28
#define MVFR0_FPSHVEC_SHIFT             24
#define MVFR0_FPSQRT_SHIFT              20
#define MVFR0_FPDIVIDE_SHIFT            16
#define MVFR0_FPTRAP_SHIFT              12
#define MVFR0_FPDP_SHIFT                8
#define MVFR0_FPSP_SHIFT                4
#define MVFR0_SIMD_SHIFT                0

#define MVFR1_SIMDFMAC_SHIFT            28
#define MVFR1_FPHP_SHIFT                24
#define MVFR1_SIMDHP_SHIFT              20
#define MVFR1_SIMDSP_SHIFT              16
#define MVFR1_SIMDINT_SHIFT             12
#define MVFR1_SIMDLS_SHIFT              8
#define MVFR1_FPDNAN_SHIFT              4
#define MVFR1_FPFTZ_SHIFT               0


#define ID_AA64MMFR0_TGRAN4_SHIFT       28
#define ID_AA64MMFR0_TGRAN64_SHIFT      24
#define ID_AA64MMFR0_TGRAN16_SHIFT      20

#define ID_AA64MMFR0_TGRAN4_NI          0xf
#define ID_AA64MMFR0_TGRAN4_SUPPORTED   0x0
#define ID_AA64MMFR0_TGRAN64_NI         0xf
#define ID_AA64MMFR0_TGRAN64_SUPPORTED  0x0
#define ID_AA64MMFR0_TGRAN16_NI         0x0
#define ID_AA64MMFR0_TGRAN16_SUPPORTED  0x1

#if defined(CONFIG_ARM64_4K_PAGES)
#define ID_AA64MMFR0_TGRAN_SHIFT        ID_AA64MMFR0_TGRAN4_SHIFT
#define ID_AA64MMFR0_TGRAN_SUPPORTED    ID_AA64MMFR0_TGRAN4_SUPPORTED
#elif defined(CONFIG_ARM64_16K_PAGES)
#define ID_AA64MMFR0_TGRAN_SHIFT        ID_AA64MMFR0_TGRAN16_SHIFT
#define ID_AA64MMFR0_TGRAN_SUPPORTED    ID_AA64MMFR0_TGRAN16_SUPPORTED
#elif defined(CONFIG_ARM64_64K_PAGES)
#define ID_AA64MMFR0_TGRAN_SHIFT        ID_AA64MMFR0_TGRAN64_SHIFT
#define ID_AA64MMFR0_TGRAN_SUPPORTED    ID_AA64MMFR0_TGRAN64_SUPPORTED
#endif


/* Safe value for MPIDR_EL1: Bit31:RES1, Bit30:U:0, Bit24:MT:0 */
#define SYS_MPIDR_SAFE_VAL              (1UL << 31)

#ifdef __ASSEMBLY__

        .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
        .equ    .L__reg_num_x\num, \num
        .endr
        .equ    .L__reg_num_xzr, 31

        .macro  mrs_s, rt, sreg
         __emit_inst(0xd5200000|(\sreg)|(.L__reg_num_\rt))
        .endm

        .macro  msr_s, sreg, rt
        __emit_inst(0xd5000000|(\sreg)|(.L__reg_num_\rt))
        .endm

#else

#include <linux/types.h>

asm(
"       .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"
"       .equ    .L__reg_num_x\\num, \\num\n"
"       .endr\n"
"       .equ    .L__reg_num_xzr, 31\n"
"\n"
"       .macro  mrs_s, rt, sreg\n"
        __emit_inst(0xd5200000|(\\sreg)|(.L__reg_num_\\rt))
"       .endm\n"
"\n"
"       .macro  msr_s, sreg, rt\n"
        __emit_inst(0xd5000000|(\\sreg)|(.L__reg_num_\\rt))
"       .endm\n"
);

/*
 * Unlike read_cpuid, calls to read_sysreg are never expected to be
 * optimized away or replaced with synthetic values.
 */
#define read_sysreg(r) ({                                       \
        u64 __val;                                              \
        asm volatile("mrs %0, " __stringify(r) : "=r" (__val)); \
        __val;                                                  \
})

/*
 * The "Z" constraint normally means a zero immediate, but when combined with
 * the "%x0" template means XZR.
 */
#define write_sysreg(v, r) do {                                 \
        u64 __val = (u64)(v);                                   \
        asm volatile("msr " __stringify(r) ", %x0"              \
                     : : "rZ" (__val));                         \
} while (0)

/*
 * For registers without architectural names, or simply unsupported by
 * GAS.
 */
#define read_sysreg_s(r) ({                                             \
        u64 __val;                                                      \
        asm volatile("mrs_s %0, " __stringify(r) : "=r" (__val));       \
        __val;                                                          \
})

#define write_sysreg_s(v, r) do {                                       \
        u64 __val = (u64)(v);                                           \
        asm volatile("msr_s " __stringify(r) ", %x0" : : "rZ" (__val)); \
} while (0)

static inline void config_sctlr_el1(u32 clear, u32 set)
{
        u32 val;

        val = read_sysreg(sctlr_el1);
        val &= ~clear;
        val |= set;
        write_sysreg(val, sctlr_el1);
}

#endif

#endif  /* __ASM_SYSREG_H */