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/*
 * Copyright (c) 2013 Jan Vesely
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup kernel_arm32
 * @{
 */
/** @file
 *  @brief System Control Coprocessor (CP15)
 */

#ifndef KERN_arm32_CP15_H_
#define KERN_arm32_CP15_H_

#include <stdint.h>

/** See ARM Architecture reference manual ch. B3.17.1 page B3-1456
 * for the list
 */

#define CONTROL_REG_GEN_READ(name, crn, opc1, crm, opc2) \
static inline uint32_t name##_read(void) \
{ \
        uint32_t val; \
        asm volatile ( "mrc p15, "#opc1", %0, "#crn", "#crm", "#opc2"\n" : "=r" (val) ); \
        return val; \
}
#define CONTROL_REG_GEN_WRITE(name, crn, opc1, crm, opc2) \
static inline void name##_write(uint32_t val) \
{ \
        asm volatile ( "mcr p15, "#opc1", %0, "#crn", "#crm", "#opc2"\n" :: "r" (val) ); \
}

/* Identification registers */
enum {
        MIDR_IMPLEMENTER_MASK = 0xff,
        MIDR_IMPLEMENTER_SHIFT = 24,
        MIDR_VARIANT_MASK = 0xf,
        MIDR_VARIANT_SHIFT = 20,
        MIDR_ARCHITECTURE_MASK = 0xf,
        MIDR_ARCHITECTURE_SHIFT = 16,
        MIDR_PART_NUMBER_MASK = 0xfff,
        MIDR_PART_NUMBER_SHIFT = 4,
        MIDR_REVISION_MASK = 0xf,
        MIDR_REVISION_SHIFT = 0,
};
CONTROL_REG_GEN_READ(MIDR, c0, 0, c0, 0);

enum {
        CTR_FORMAT_MASK = 0xe0000000,
        CTR_FORMAT_ARMv7 = 0x80000000,
        CTR_FORMAT_ARMv6 = 0x00000000,
        /* ARMv7 format */
        CTR_CWG_MASK = 0xf,
        CTR_CWG_SHIFT = 24,
        CTR_ERG_MASK = 0xf,
        CTR_ERG_SHIFT = 20,
        CTR_D_MIN_LINE_MASK = 0xf,
        CTR_D_MIN_LINE_SHIFT = 16,
        CTR_I_MIN_LINE_MASK = 0xf,
        CTR_I_MIN_LINE_SHIFT = 0,
        CTR_L1I_POLICY_MASK = 0x0000c000,
        CTR_L1I_POLICY_AIVIVT = 0x00004000,
        CTR_L1I_POLICY_VIPT = 0x00008000,
        CTR_L1I_POLICY_PIPT = 0x0000c000,
        /* ARMv6 format */
        CTR_CTYPE_MASK = 0x1e000000,
        CTR_CTYPE_WT = 0x00000000,
        CTR_CTYPE_WB_NL = 0x04000000,
        CTR_CTYPE_WB_D = 0x0a000000,
        CTR_CTYPE_WB_A = 0x0c000000, /**< ARMv5- only */
        CTR_CTYPE_WB_B = 0x0e000000, /**< ARMv5- only */
        CTR_CTYPE_WB_C = 0x1c000000,
        CTR_SEP_FLAG = 1 << 24,
        CTR_DCACHE_P_FLAG = 1 << 23,
        CTR_DCACHE_SIZE_MASK = 0xf,
        CTR_DCACHE_SIZE_SHIFT = 18,
        CTR_DCACHE_ASSOC_MASK = 0x7,
        CTR_DCACHE_ASSOC_SHIFT = 15,
        CTR_DCACHE_M_FLAG = 1 << 14,
        CTR_DCACHE_LEN_MASK = 0x3,
        CTR_DCACHE_LEN_SHIFT = 0,
        CTR_ICACHE_P_FLAG = 1 << 11,
        CTR_ICACHE_SIZE_MASK = 0xf,
        CTR_ICACHE_SIZE_SHIFT = 6,
        CTR_ICACHE_ASSOC_MASK = 0x7,
        CTR_ICACHE_ASSOC_SHIFT = 3,
        CTR_ICACHE_M_FLAG = 1 << 2,
        CTR_ICACHE_LEN_MASK = 0x3,
        CTR_ICACHE_LEN_SHIFT = 0,
};
CONTROL_REG_GEN_READ(CTR, c0, 0, c0, 1);

#if defined(PROCESSOR_ARCH_armv6) || defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_READ(TCMR, c0, 0, c0, 2);

enum {
        TLBTR_SEP_FLAG = 1,
};

CONTROL_REG_GEN_READ(TLBTR, c0, 0, c0, 3);
#endif

#if defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_READ(MPIDR, c0, 0, c0, 5);
CONTROL_REG_GEN_READ(REVIDR, c0, 0, c0, 6);
#endif

enum {
        ID_PFR0_THUMBEE_MASK = 0xf << 12,
        ID_PFR0_THUMBEE = 0x1 << 12,
        ID_PFR0_JAZELLE_MASK = 0xf << 8,
        ID_PFR0_JAZELLE = 0x1 << 8,
        ID_PFR0_JAZELLE_CV_CLEAR = 0x2 << 8,
        ID_PFR0_THUMB_MASK = 0xf << 4,
        ID_PFR0_THUMB = 0x1 << 4,
        ID_PFR0_THUMB2 = 0x3 << 4,
        ID_PFR0_ARM_MASK = 0xf << 0,
        ID_PFR0_ARM = 0x1 << 0,
};
CONTROL_REG_GEN_READ(ID_PFR0, c0, 0, c1, 0);

enum {
        ID_PFR1_GEN_TIMER_EXT_MASK = 0xf << 16,
        ID_PFR1_GEN_TIMER_EXT = 0x1 << 16,
        ID_PFR1_VIRT_EXT_MASK = 0xf << 12,
        ID_PFR1_VIRT_EXT = 0x1 << 12,
        ID_PFR1_M_PROF_MASK = 0xf << 8,
        ID_PFR1_M_PROF_MODEL = 0x2 << 8,
        ID_PFR1_SEC_EXT_MASK = 0xf << 4,
        ID_PFR1_SEC_EXT = 0x1 << 4,
        ID_PFR1_SEC_EXT_RFR = 0x2 << 4,
        ID_PFR1_ARMV4_MODEL_MASK = 0xf << 0,
        ID_PFR1_ARMV4_MODEL = 0x1 << 0,
};
CONTROL_REG_GEN_READ(ID_PFR1, c0, 0, c1, 1);
CONTROL_REG_GEN_READ(ID_DFR0, c0, 0, c1, 2);
CONTROL_REG_GEN_READ(ID_AFR0, c0, 0, c1, 3);
CONTROL_REG_GEN_READ(ID_MMFR0, c0, 0, c1, 4);
CONTROL_REG_GEN_READ(ID_MMFR1, c0, 0, c1, 5);
CONTROL_REG_GEN_READ(ID_MMFR2, c0, 0, c1, 6);
CONTROL_REG_GEN_READ(ID_MMFR3, c0, 0, c1, 7);

CONTROL_REG_GEN_READ(ID_ISAR0, c0, 0, c2, 0);
CONTROL_REG_GEN_READ(ID_ISAR1, c0, 0, c2, 1);
CONTROL_REG_GEN_READ(ID_ISAR2, c0, 0, c2, 2);
CONTROL_REG_GEN_READ(ID_ISAR3, c0, 0, c2, 3);
CONTROL_REG_GEN_READ(ID_ISAR4, c0, 0, c2, 4);
CONTROL_REG_GEN_READ(ID_ISAR5, c0, 0, c2, 5);

enum {
        CCSIDR_WT_FLAG = 1 << 31,
        CCSIDR_WB_FLAG = 1 << 30,
        CCSIDR_RA_FLAG = 1 << 29,
        CCSIDR_WA_FLAG = 1 << 28,
        CCSIDR_NUMSETS_MASK = 0x7fff,
        CCSIDR_NUMSETS_SHIFT = 13,
        CCSIDR_ASSOC_MASK = 0x3ff,
        CCSIDR_ASSOC_SHIFT = 3,
        CCSIDR_LINESIZE_MASK = 0x7,
        CCSIDR_LINESIZE_SHIFT = 0,
};

#define CCSIDR_SETS(val) \
        (((val >> CCSIDR_NUMSETS_SHIFT) & CCSIDR_NUMSETS_MASK) + 1)
#define CCSIDR_WAYS(val) \
        (((val >> CCSIDR_ASSOC_SHIFT) & CCSIDR_ASSOC_MASK) + 1)
/* The register value is log(linesize_in_words) - 2 */
#define CCSIDR_LINESIZE_LOG(val) \
        (((val >> CCSIDR_LINESIZE_SHIFT) & CCSIDR_LINESIZE_MASK) + 2 + 2)

CONTROL_REG_GEN_READ(CCSIDR, c0, 1, c0, 0);

enum {
        CLIDR_LOUU_MASK = 0x7,
        CLIDR_LOUU_SHIFT = 27,
        CLIDR_LOC_MASK = 0x7,
        CLIDR_LOC_SHIFT = 24,
        CLIDR_LOUIS_MASK = 0x7,
        CLIDR_LOUIS_SHIFT = 21,
        CLIDR_NOCACHE = 0x0,
        CLIDR_ICACHE_ONLY = 0x1,
        CLIDR_DCACHE_ONLY = 0x2,
        CLIDR_SEP_CACHE = 0x3,
        CLIDR_UNI_CACHE = 0x4,
        CLIDR_CACHE_MASK = 0x7,
};

/** levels counted from 0 */
#define CLIDR_CACHE(level, val)   ((val >> (level * 3)) & CLIDR_CACHE_MASK)

CONTROL_REG_GEN_READ(CLIDR, c0, 1, c0, 1);
CONTROL_REG_GEN_READ(AIDR, c0, 1, c0, 7); /* Implementation defined or MIDR */

enum {
        CCSELR_LEVEL_MASK = 0x7,
        CCSELR_LEVEL_SHIFT = 1,
        CCSELR_INSTRUCTION_FLAG = 1 << 0,
};
CONTROL_REG_GEN_READ(CSSELR, c0, 2, c0, 0);
CONTROL_REG_GEN_WRITE(CSSELR, c0, 2, c0, 0);
CONTROL_REG_GEN_READ(VPIDR, c0, 4, c0, 0);
CONTROL_REG_GEN_WRITE(VPIDR, c0, 4, c0, 0);
CONTROL_REG_GEN_READ(VMPIDR, c0, 4, c0, 5);
CONTROL_REG_GEN_WRITE(VMPIDR, c0, 4, c0, 5);

/* System control registers */
/*
 * Control register bit values see ch. B4.1.130 of ARM Architecture Reference
 * Manual ARMv7-A and ARMv7-R edition, page 1687
 */
enum {
        SCTLR_MMU_EN_FLAG            = 1 << 0,
        SCTLR_ALIGN_CHECK_EN_FLAG    = 1 << 1,  /* Allow alignemnt check */
        SCTLR_CACHE_EN_FLAG          = 1 << 2,
        SCTLR_CP15_BARRIER_EN_FLAG   = 1 << 5,
        SCTLR_B_EN_FLAG              = 1 << 7,  /* ARMv6-, big endian switch */
        SCTLR_SWAP_EN_FLAG           = 1 << 10,
        SCTLR_BRANCH_PREDICT_EN_FLAG = 1 << 11,
        SCTLR_INST_CACHE_EN_FLAG     = 1 << 12,
        SCTLR_HIGH_VECTORS_EN_FLAG   = 1 << 13,
        SCTLR_ROUND_ROBIN_EN_FLAG    = 1 << 14,
        SCTLR_HW_ACCESS_FLAG_EN_FLAG = 1 << 17,
        SCTLR_WRITE_XN_EN_FLAG       = 1 << 19, /* Only if virt. supported */
        SCTLR_USPCE_WRITE_XN_EN_FLAG = 1 << 20, /* Only if virt. supported */
        SCTLR_FAST_IRQ_EN_FLAG       = 1 << 21, /* Disable impl. specific feat */
        SCTLR_UNALIGNED_EN_FLAG      = 1 << 22, /* Must be 1 on armv7 */
        SCTLR_EXTENDED_PT_EN_FLAG    = 1 << 23,
        SCTLR_IRQ_VECTORS_EN_FLAG    = 1 << 24,
        SCTLR_BIG_ENDIAN_EXC_FLAG    = 1 << 25,
        SCTLR_NMFI_EN_FLAG           = 1 << 27,
        SCTLR_TEX_REMAP_EN_FLAG      = 1 << 28,
        SCTLR_ACCESS_FLAG_EN_FLAG    = 1 << 29,
        SCTLR_THUMB_EXC_EN_FLAG      = 1 << 30,
};
CONTROL_REG_GEN_READ(SCTLR, c1, 0, c0, 0);
CONTROL_REG_GEN_WRITE(SCTLR, c1, 0, c0, 0);
CONTROL_REG_GEN_READ(ACTLR, c1, 0, c0, 1);
CONTROL_REG_GEN_WRITE(ACTLR, c1, 0, c0, 1);

enum {
        CPACR_ASEDIS_FLAG = 1 << 31,
        CPACR_D32DIS_FLAG = 1 << 30,
        CPACR_TRCDIS_FLAG = 1 << 28,
#define CPACR_CP_MASK(cp) (0x3 << (cp * 2))
#define CPACR_CP_NO_ACCESS(cp) (0x0 << (cp * 2))
#define CPACR_CP_PL1_ACCESS(cp) (0x1 << (cp * 2))
#define CPACR_CP_FULL_ACCESS(cp) (0x3 << (cp * 2))
};
CONTROL_REG_GEN_READ(CPACR, c1, 0, c0, 2);
CONTROL_REG_GEN_WRITE(CPACR, c1, 0, c0, 2);

/* Implemented as part of Security extensions */
enum {
        SCR_SIF_FLAG = 1 << 9,
        SCR_HCE_FLAG = 1 << 8,
        SCR_SCD_FLAG = 1 << 7,
        SCR_nET_FLAG = 1 << 6,
        SCR_AW_FLAG = 1 << 5,
        SCR_FW_FLAG = 1 << 4,
        SCR_EA_FLAG = 1 << 3,
        SCR_FIQ_FLAG = 1 << 2,
        SCR_IRQ_FLAG = 1 << 1,
        SCR_NS_FLAG = 1 << 0,
};
CONTROL_REG_GEN_READ(SCR, c1, 0, c1, 0);
CONTROL_REG_GEN_WRITE(SCR, c1, 0, c1, 0);
CONTROL_REG_GEN_READ(SDER, c1, 0, c1, 1);
CONTROL_REG_GEN_WRITE(SDER, c1, 0, c1, 1);

enum {
        NSACR_NSTRCDIS_FLAG = 1 << 20,
        NSACR_RFR_FLAG = 1 << 19,
        NSACR_NSASEDIS = 1 << 15,
        NSACR_NSD32DIS = 1 << 14,
#define NSACR_CP_FLAG(cp) (1 << cp)
};
CONTROL_REG_GEN_READ(NSACR, c1, 0, c1, 2);
CONTROL_REG_GEN_WRITE(NSACR, c1, 0, c1, 2);

/* Implemented as part of Virtualization extensions */
CONTROL_REG_GEN_READ(HSCTLR, c1, 4, c0, 0);
CONTROL_REG_GEN_WRITE(HSCTLR, c1, 4, c0, 0);
CONTROL_REG_GEN_READ(HACTLR, c1, 4, c0, 1);
CONTROL_REG_GEN_WRITE(HACTLR, c1, 4, c0, 1);

CONTROL_REG_GEN_READ(HCR, c1, 4, c1, 0);
CONTROL_REG_GEN_WRITE(HCR, c1, 4, c1, 0);
CONTROL_REG_GEN_READ(HDCR, c1, 4, c1, 1);
CONTROL_REG_GEN_WRITE(HDCR, c1, 4, c1, 1);
CONTROL_REG_GEN_READ(HCPTR, c1, 4, c1, 2);
CONTROL_REG_GEN_WRITE(HCPTR, c1, 4, c1, 2);
CONTROL_REG_GEN_READ(HSTR, c1, 4, c1, 3);
CONTROL_REG_GEN_WRITE(HSTR, c1, 4, c1, 3);
CONTROL_REG_GEN_READ(HACR, c1, 4, c1, 7);
CONTROL_REG_GEN_WRITE(HACR, c1, 4, c1, 7);

/* Memory protection and control registers */
enum {
        TTBR_ADDR_MASK = 0xffffff80,
#if defined(PROCESSOR_ARCH_armv6) || defined(PROCESSOR_ARCH_armv7_a)
        TTBR_NOS_FLAG = 1 << 5,
        TTBR_RGN_MASK = 0x3 << 3,
        TTBR_RGN_NO_CACHE = 0x0 << 3,
        TTBR_RGN_WBWA_CACHE = 0x1 << 3,
        TTBR_RGN_WT_CACHE = 0x2 << 3,
        TTBR_RGN_WB_CACHE = 0x3 << 3,
        TTBR_S_FLAG = 1 << 1,
        TTBR_C_FLAG = 1 << 0,
#endif
};
CONTROL_REG_GEN_READ(TTBR0, c2, 0, c0, 0);
CONTROL_REG_GEN_WRITE(TTBR0, c2, 0, c0, 0);

#if defined(PROCESSOR_ARCH_armv6) || defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_READ(TTBR1, c2, 0, c0, 1);
CONTROL_REG_GEN_WRITE(TTBR1, c2, 0, c0, 1);
CONTROL_REG_GEN_READ(TTBCR, c2, 0, c0, 2);
CONTROL_REG_GEN_WRITE(TTBCR, c2, 0, c0, 2);
#endif

#if defined(PROCESSOR_ARCH_armv7)
CONTROL_REG_GEN_READ(HTCR, c2, 4, c0, 2);
CONTROL_REG_GEN_WRITE(HTCR, c2, 4, c0, 2);
CONTROL_REG_GEN_READ(VTCR, c2, 4, c1, 2);
CONTROL_REG_GEN_WRITE(VTCR, c2, 4, c1, 2);

/* PAE */
CONTROL_REG_GEN_READ(TTBR0H, c2, 0, c2, 0);
CONTROL_REG_GEN_WRITE(TTBR0H, c2, 0, c2, 0);
CONTROL_REG_GEN_READ(TTBR1H, c2, 0, c2, 1);
CONTROL_REG_GEN_WRITE(TTBR1H, c2, 0, c2, 1);
CONTROL_REG_GEN_READ(HTTBRH, c2, 0, c2, 4);
CONTROL_REG_GEN_WRITE(HTTBRH, c2, 0, c2, 4);
CONTROL_REG_GEN_READ(VTTBRH, c2, 0, c2, 6);
CONTROL_REG_GEN_WRITE(VTTBRH, c2, 0, c2, 6);
#endif

CONTROL_REG_GEN_READ(DACR, c3, 0, c0, 0);
CONTROL_REG_GEN_WRITE(DACR, c3, 0, c0, 0);

/* Memory system fault registers */
CONTROL_REG_GEN_READ(DFSR, c5, 0, c0, 0);
CONTROL_REG_GEN_WRITE(DFSR, c5, 0, c0, 0);
CONTROL_REG_GEN_READ(IFSR, c5, 0, c0, 1);
CONTROL_REG_GEN_WRITE(IFSR, c5, 0, c0, 1);

CONTROL_REG_GEN_READ(ADFSR, c5, 0, c1, 0);
CONTROL_REG_GEN_WRITE(ADFSR, c5, 0, c1, 0);
CONTROL_REG_GEN_READ(AIFSR, c5, 0, c1, 1);
CONTROL_REG_GEN_WRITE(AIFSR, c5, 0, c1, 1);

CONTROL_REG_GEN_READ(HADFSR, c5, 4, c1, 0);
CONTROL_REG_GEN_WRITE(HADFSR, c5, 4, c1, 0);
CONTROL_REG_GEN_READ(HAIFSR, c5, 4, c1, 1);
CONTROL_REG_GEN_WRITE(HAIFSR, c5, 4, c1, 1);
CONTROL_REG_GEN_READ(HSR, c5, 4, c2, 0);
CONTROL_REG_GEN_WRITE(HSR, c5, 4, c2, 0);

CONTROL_REG_GEN_READ(DFAR, c6, 0, c0, 0);
CONTROL_REG_GEN_WRITE(DFAR, c6, 0, c0, 0);
CONTROL_REG_GEN_READ(IFAR, c6, 0, c0, 2);
CONTROL_REG_GEN_WRITE(IFAR, c6, 0, c0, 2);

CONTROL_REG_GEN_READ(HDFAR, c6, 4, c0, 0);
CONTROL_REG_GEN_WRITE(HDFAR, c6, 4, c0, 0);
CONTROL_REG_GEN_READ(HIFAR, c6, 4, c0, 2);
CONTROL_REG_GEN_WRITE(HIFAR, c6, 4, c0, 2);
CONTROL_REG_GEN_READ(HPFAR, c6, 4, c0, 4);
CONTROL_REG_GEN_WRITE(HPFAR, c6, 4, c0, 4);

/*
 * Cache maintenance, address translation and other
 */

#if defined(PROCESSOR_cortex_a8)
#define CP15_C7_MVA_ALIGN       64
#elif defined(PROCESSOR_arm1176jzf_s)
#define CP15_C7_MVA_ALIGN       32
#elif defined(PROCESSOR_arm926ej_s)
#define CP15_C7_MVA_ALIGN       32
#elif defined(PROCESSOR_arm920t)
#define CP15_C7_MVA_ALIGN       32
#else
#error Unknown MVA alignment
#endif

#if defined(PROCESSOR_ARCH_armv6) || defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_WRITE(CP15ISB, c7, 0, c5, 4);
CONTROL_REG_GEN_WRITE(BPIALL, c7, 0, c5, 6);
CONTROL_REG_GEN_WRITE(BPIMVA, c7, 0, c5, 7);
#endif

#if !defined(PROCESSOR_arm920t)
CONTROL_REG_GEN_WRITE(DCISW, c7, 0, c6, 2);
#endif

#if defined(PROCESSOR_arm920t) || !defined(PROCESSOR_ARCH_armv4)
CONTROL_REG_GEN_WRITE(DCCSW, c7, 0, c10, 2);
#endif

CONTROL_REG_GEN_WRITE(CP15DSB, c7, 0, c10, 4);

#if defined(PROCESSOR_ARCH_armv6) || defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_WRITE(CP15DMB, c7, 0, c10, 5);
#endif

#if defined(PROCESSOR_arm920t) || !defined(PROCESSOR_ARCH_armv4)
CONTROL_REG_GEN_WRITE(DCCISW, c7, 0, c14, 2);
#endif

#if defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_WRITE(ICIALLLUIS, c7, 0, c1, 0);
CONTROL_REG_GEN_WRITE(BPIALLIS, c7, 0, c1, 6);
CONTROL_REG_GEN_READ(PAR, c7, 0, c4, 0); /* Security Extensions */
CONTROL_REG_GEN_WRITE(PAR, c7, 0, c4, 0); /* Security Extensions */
CONTROL_REG_GEN_WRITE(ICIALLU, c7, 0, c5, 0);
CONTROL_REG_GEN_WRITE(ICIMVAU, c7, 0, c5, 1);
CONTROL_REG_GEN_WRITE(DCIMVAC, c7, 0, c6, 1);
CONTROL_REG_GEN_READ(PARH, c7, 0, c7, 0); /* PAE */
CONTROL_REG_GEN_WRITE(PARH, c7, 0, c7, 0); /* PAE */
CONTROL_REG_GEN_WRITE(ATS1CPR, c7, 0, c8, 0); /* Security Extensions */
CONTROL_REG_GEN_WRITE(ATS1CPW, c7, 0, c8, 1); /* Security Extensions */
CONTROL_REG_GEN_WRITE(ATS1CUR, c7, 0, c8, 2); /* Security Extensions */
CONTROL_REG_GEN_WRITE(ATS1CUW, c7, 0, c8, 3); /* Security Extensions */
CONTROL_REG_GEN_WRITE(ATS12NSOPR, c7, 0, c8, 4); /* Security Extensions */
CONTROL_REG_GEN_WRITE(ATS12NSOPW, c7, 0, c8, 5); /* Security Extensions */
CONTROL_REG_GEN_WRITE(ATS12NSOUR, c7, 0, c8, 6); /* Security Extensions */
CONTROL_REG_GEN_WRITE(ATS12NSOUW, c7, 0, c8, 7); /* Security Extensions */
CONTROL_REG_GEN_WRITE(ATS1HR, c7, 4, c8, 0); /* Virtualization Extensions */
CONTROL_REG_GEN_WRITE(ATS1HW, c7, 4, c8, 1); /* Virtualization Extensions */
CONTROL_REG_GEN_WRITE(DCCMVAC, c7, 0, c10, 1);
CONTROL_REG_GEN_WRITE(DCCMVAU, c7, 0, c11, 1);
CONTROL_REG_GEN_WRITE(DCCIMVAC, c7, 0, c14, 1);
#else

#if defined(PROCESSOR_arm920t) || !defined(PROCESSOR_ARCH_armv4)
CONTROL_REG_GEN_WRITE(WFI, c7, 0, c0, 4);
#endif

CONTROL_REG_GEN_WRITE(ICIALL, c7, 0, c5, 0);
CONTROL_REG_GEN_WRITE(ICIMVA, c7, 0, c5, 1);

#if !defined(PROCESSOR_ARCH_armv4)
CONTROL_REG_GEN_WRITE(ICISW, c7, 0, c5, 2);
#endif

CONTROL_REG_GEN_WRITE(DCIALL, c7, 0, c6, 0);
CONTROL_REG_GEN_WRITE(DCIMVA, c7, 0, c6, 1);
CONTROL_REG_GEN_WRITE(CIALL, c7, 0, c7, 0);
CONTROL_REG_GEN_WRITE(CIMVA, c7, 0, c7, 1);

#if !defined(PROCESSOR_ARCH_armv4)
CONTROL_REG_GEN_WRITE(CISW, c7, 0, c7, 2);
#endif

#if defined(PROCESSOR_ARCH_armv4) || defined(PROCESSOR_ARCH_armv6)
CONTROL_REG_GEN_WRITE(DCCALL, c7, 0, c10, 0);
#endif

CONTROL_REG_GEN_WRITE(DCCMVA, c7, 0, c10, 1);

#if defined(PROCESSOR_ARCH_armv4) || defined(PROCESSOR_ARCH_armv6)
CONTROL_REG_GEN_WRITE(CCALL, c7, 0, c11, 0);
#endif

CONTROL_REG_GEN_WRITE(CCMVA, c7, 0, c11, 1);

#if !defined(PROCESSOR_ARCH_armv4)
CONTROL_REG_GEN_WRITE(CCSW, c7, 0, c11, 2);
#endif

#if defined(PROCESSOR_arm920t) || !defined(PROCESSOR_ARCH_armv4)
CONTROL_REG_GEN_WRITE(PFIMVA, c7, 0, c13, 1);
#endif

#if defined(PROCESSOR_ARCH_armv4) || defined(PROCESSOR_ARCH_armv6)
CONTROL_REG_GEN_WRITE(DCCIALL, c7, 0, c14, 0);
#endif

CONTROL_REG_GEN_WRITE(DCCIMVA, c7, 0, c14, 1);

#if defined(PROCESSOR_ARCH_armv4) || defined(PROCESSOR_ARCH_armv6)
CONTROL_REG_GEN_WRITE(CCIALL, c7, 0, c15, 0);
#endif

CONTROL_REG_GEN_WRITE(CCIMVA, c7, 0, c15, 1);

#if defined(PROCESSOR_ARCH_armv5) || defined(PROCESSOR_ARCH_armv6)
CONTROL_REG_GEN_WRITE(CCISW, c7, 0, c15, 2);
#endif

#endif

/* TLB maintenance */
#if defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_WRITE(TLBIALLIS, c8, 0, c3, 0); /* Inner shareable */
CONTROL_REG_GEN_WRITE(TLBIMVAIS, c8, 0, c3, 1); /* Inner shareable */
CONTROL_REG_GEN_WRITE(TLBIASIDIS, c8, 0, c3, 2); /* Inner shareable */
CONTROL_REG_GEN_WRITE(TLBIMVAAIS, c8, 0, c3, 3); /* Inner shareable */
#endif

CONTROL_REG_GEN_WRITE(ITLBIALL, c8, 0, c5, 0);
CONTROL_REG_GEN_WRITE(ITLBIMVA, c8, 0, c5, 1);
#if defined(PROCESSOR_ARCH_armv6) || defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_WRITE(ITLBIASID, c8, 0, c5, 2);
#endif

CONTROL_REG_GEN_WRITE(DTLBIALL, c8, 0, c6, 0);
CONTROL_REG_GEN_WRITE(DTLBIMVA, c8, 0, c6, 1);
#if defined(PROCESSOR_ARCH_armv6) || defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_WRITE(DTLBIASID, c8, 0, c6, 2);
#endif

CONTROL_REG_GEN_WRITE(TLBIALL, c8, 0, c7, 0);
CONTROL_REG_GEN_WRITE(TLBIMVA, c8, 0, c7, 1);
#if defined(PROCESSOR_ARCH_armv6) || defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_WRITE(TLBIASID, c8, 0, c7, 2);
#endif
#if defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_WRITE(TLBIMVAA, c8, 0, c7, 3);
#endif

#if defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_WRITE(TLBIALLHIS, c8, 4, c3, 0); /* Inner shareable */
CONTROL_REG_GEN_WRITE(TLBIMVAHIS, c8, 4, c3, 1); /* Inner shareable */
CONTROL_REG_GEN_WRITE(TLBIALLNSNHIS, c8, 4, c3, 4); /* Inner shareable */
#endif

#if defined(PROCESSOR_ARCH_armv7_a)
CONTROL_REG_GEN_WRITE(TLBIALLH, c8, 4, c7, 0);
CONTROL_REG_GEN_WRITE(TLBIMVAH, c8, 4, c7, 1);
CONTROL_REG_GEN_WRITE(TLBIALLNSNHS, c8, 4, c7, 4);
#endif

/* c9 are performance monitoring resgisters */
enum {
        PMCR_IMP_MASK = 0xff,
        PMCR_IMP_SHIFT = 24,
        PMCR_IDCODE_MASK = 0xff,
        PMCR_IDCODE_SHIFT = 16,
        PMCR_EVENT_NUM_MASK = 0x1f,
        PMCR_EVENT_NUM_SHIFT = 11,
        PMCR_DP_FLAG = 1 << 5,
        PMCR_X_FLAG = 1 << 4,
        PMCR_D_FLAG = 1 << 3,
        PMCR_C_FLAG = 1 << 2,
        PMCR_P_FLAG = 1 << 1,
        PMCR_E_FLAG = 1 << 0,
};
CONTROL_REG_GEN_READ(PMCR, c9, 0, c12, 0);
CONTROL_REG_GEN_WRITE(PMCR, c9, 0, c12, 0);
enum {
        PMCNTENSET_CYCLE_COUNTER_EN_FLAG = 1 << 31,
#define PMCNTENSET_COUNTER_EN_FLAG(c)   (1 << c)
};
CONTROL_REG_GEN_READ(PMCNTENSET, c9, 0, c12, 1);
CONTROL_REG_GEN_WRITE(PMCNTENSET, c9, 0, c12, 1);
CONTROL_REG_GEN_READ(PMCCNTR, c9, 0, c13, 0);
CONTROL_REG_GEN_WRITE(PMCCNTR, c9, 0, c13, 0);

/* c10 has tons of reserved too */
CONTROL_REG_GEN_READ(PRRR, c10, 0, c2, 0); /* no PAE */
CONTROL_REG_GEN_WRITE(PRRR, c10, 0, c2, 0); /* no PAE */
CONTROL_REG_GEN_READ(MAIR0, c10, 0, c2, 0); /* PAE */
CONTROL_REG_GEN_WRITE(MAIR0, c10, 0, c2, 0); /* PAE */
CONTROL_REG_GEN_READ(NMRR, c10, 0, c2, 1); /* no PAE */
CONTROL_REG_GEN_WRITE(NMRR, c10, 0, c2, 1); /* no PAE */
CONTROL_REG_GEN_READ(MAIR1, c10, 0, c2, 1); /* PAE */
CONTROL_REG_GEN_WRITE(MAIR1, c10, 0, c2, 1); /* PAE */

CONTROL_REG_GEN_READ(AMAIR0, c10, 0, c3, 0); /* PAE */
CONTROL_REG_GEN_WRITE(AMAIR0, c10, 0, c3, 0); /* PAE */
CONTROL_REG_GEN_READ(AMAIR1, c10, 0, c3, 1); /* PAE */
CONTROL_REG_GEN_WRITE(AMAIR1, c10, 0, c3, 1); /* PAE */

CONTROL_REG_GEN_READ(HMAIR0, c10, 4, c2, 0);
CONTROL_REG_GEN_WRITE(HMAIR0, c10, 4, c2, 0);
CONTROL_REG_GEN_READ(HMAIR1, c10, 4, c2, 1);
CONTROL_REG_GEN_WRITE(HMAIR1, c10, 4, c2, 1);

CONTROL_REG_GEN_READ(HAMAIR0, c10, 4, c3, 0);
CONTROL_REG_GEN_WRITE(HAMAIR0, c10, 4, c3, 0);
CONTROL_REG_GEN_READ(HAMAIR1, c10, 4, c3, 1);
CONTROL_REG_GEN_WRITE(HAMAIR1, c10, 4, c3, 1);

/* c11 is reserved for TCM and DMA */

/* Security extensions */
CONTROL_REG_GEN_READ(VBAR, c12, 0, c0, 0);
CONTROL_REG_GEN_WRITE(VBAR, c12, 0, c0, 0);
CONTROL_REG_GEN_READ(MVBAR, c12, 0, c0, 1);
CONTROL_REG_GEN_WRITE(MVBAR, c12, 0, c0, 1);

CONTROL_REG_GEN_READ(ISR, c12, 0, c1, 0);

CONTROL_REG_GEN_READ(HVBAR, c12, 4, c0, 0);
CONTROL_REG_GEN_WRITE(HVBAR, c12, 4, c0, 0);

/* Process context and thread id (FCSE) */
CONTROL_REG_GEN_READ(FCSEIDR, c13, 0, c0, 0);

CONTROL_REG_GEN_READ(CONTEXTIDR, c13, 0, c0, 1);
CONTROL_REG_GEN_WRITE(CONTEXTIDR, c13, 0, c0, 1);
CONTROL_REG_GEN_READ(TPIDRURW, c13, 0, c0, 2);
CONTROL_REG_GEN_WRITE(TPIDRURW, c13, 0, c0, 2);
CONTROL_REG_GEN_READ(TPIDRURO, c13, 0, c0, 3);
CONTROL_REG_GEN_WRITE(TPIDRURO, c13, 0, c0, 3);
CONTROL_REG_GEN_READ(TPIDRPRW, c13, 0, c0, 4);
CONTROL_REG_GEN_WRITE(TPIDRPRW, c13, 0, c0, 4);

CONTROL_REG_GEN_READ(HTPIDR, c13, 4, c0, 2);
CONTROL_REG_GEN_WRITE(HTPIDR, c13, 4, c0, 2);

/* Generic Timer Extensions */
CONTROL_REG_GEN_READ(CNTFRQ, c14, 0, c0, 0);
CONTROL_REG_GEN_WRITE(CNTFRQ, c14, 0, c0, 0);
CONTROL_REG_GEN_READ(CNTKCTL, c14, 0, c1, 0);
CONTROL_REG_GEN_WRITE(CNTKCTL, c14, 0, c1, 0);

CONTROL_REG_GEN_READ(CNTP_TVAL, c14, 0, c2, 0);
CONTROL_REG_GEN_WRITE(CNTP_TVAL, c14, 0, c2, 0);
CONTROL_REG_GEN_READ(CNTP_CTL, c14, 0, c2, 1);
CONTROL_REG_GEN_WRITE(CNTP_CTL, c14, 0, c2, 1);

CONTROL_REG_GEN_READ(CNTV_TVAL, c14, 0, c3, 0);
CONTROL_REG_GEN_WRITE(CNTV_TVAL, c14, 0, c3, 0);
CONTROL_REG_GEN_READ(CNTV_CTL, c14, 0, c3, 1);
CONTROL_REG_GEN_WRITE(CNTV_CTL, c14, 0, c3, 1);

CONTROL_REG_GEN_READ(CNTHCTL, c14, 4, c1, 0);
CONTROL_REG_GEN_WRITE(CNTHCTL, c14, 4, c1, 0);

CONTROL_REG_GEN_READ(CNTHP_TVAL, c14, 4, c2, 0);
CONTROL_REG_GEN_WRITE(CNTHP_TVAL, c14, 4, c2, 0);
CONTROL_REG_GEN_READ(CNTHP_CTL, c14, 4, c2, 1);
CONTROL_REG_GEN_WRITE(CNTHP_CTL, c14, 4, c2, 1);

#endif

/** @}
 */
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root/kernel/arch/arm32/include/arch/cp15.h

INCLUDED FROM
