arch/arc/include/asm/arcregs.h - kernel/msm-4.9 - Gitiles

 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.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.
  */

 #ifndef _ASM_ARC_ARCREGS_H
 #define _ASM_ARC_ARCREGS_H

 /* Build Configuration Registers */
 #define ARC_REG_DCCMBASE_BCR	0x61	/* DCCM Base Addr */
 #define ARC_REG_CRC_BCR		0x62
 #define ARC_REG_VECBASE_BCR	0x68
 #define ARC_REG_PERIBASE_BCR	0x69
 #define ARC_REG_FP_BCR		0x6B	/* ARCompact: Single-Precision FPU */
 #define ARC_REG_DPFP_BCR	0x6C	/* ARCompact: Dbl Precision FPU */
 #define ARC_REG_FP_V2_BCR	0xc8	/* ARCv2 FPU */
 #define ARC_REG_SLC_BCR		0xce
 #define ARC_REG_DCCM_BCR	0x74	/* DCCM Present + SZ */
 #define ARC_REG_TIMERS_BCR	0x75
 #define ARC_REG_AP_BCR		0x76
 #define ARC_REG_ICCM_BCR	0x78
 #define ARC_REG_XY_MEM_BCR	0x79
 #define ARC_REG_MAC_BCR		0x7a
 #define ARC_REG_MUL_BCR		0x7b
 #define ARC_REG_SWAP_BCR	0x7c
 #define ARC_REG_NORM_BCR	0x7d
 #define ARC_REG_MIXMAX_BCR	0x7e
 #define ARC_REG_BARREL_BCR	0x7f
 #define ARC_REG_D_UNCACH_BCR	0x6A
 #define ARC_REG_BPU_BCR		0xc0
 #define ARC_REG_ISA_CFG_BCR	0xc1
 #define ARC_REG_RTT_BCR		0xF2
 #define ARC_REG_IRQ_BCR		0xF3
 #define ARC_REG_SMART_BCR	0xFF

 /* status32 Bits Positions */
 #define STATUS_AE_BIT		5	/* Exception active */
 #define STATUS_DE_BIT		6	/* PC is in delay slot */
 #define STATUS_U_BIT		7	/* User/Kernel mode */
 #define STATUS_L_BIT		12	/* Loop inhibit */

 /* These masks correspond to the status word(STATUS_32) bits */
 #define STATUS_AE_MASK		(1<<STATUS_AE_BIT)
 #define STATUS_DE_MASK		(1<<STATUS_DE_BIT)
 #define STATUS_U_MASK		(1<<STATUS_U_BIT)
 #define STATUS_L_MASK		(1<<STATUS_L_BIT)

 /*
  * ECR: Exception Cause Reg bits-n-pieces
  * [23:16] = Exception Vector
  * [15: 8] = Exception Cause Code
  * [ 7: 0] = Exception Parameters (for certain types only)
  */
 #ifdef CONFIG_ISA_ARCOMPACT
 #define ECR_V_MEM_ERR			0x01
 #define ECR_V_INSN_ERR			0x02
 #define ECR_V_MACH_CHK			0x20
 #define ECR_V_ITLB_MISS			0x21
 #define ECR_V_DTLB_MISS			0x22
 #define ECR_V_PROTV			0x23
 #define ECR_V_TRAP			0x25
 #else
 #define ECR_V_MEM_ERR			0x01
 #define ECR_V_INSN_ERR			0x02
 #define ECR_V_MACH_CHK			0x03
 #define ECR_V_ITLB_MISS			0x04
 #define ECR_V_DTLB_MISS			0x05
 #define ECR_V_PROTV			0x06
 #define ECR_V_TRAP			0x09
 #endif

 /* DTLB Miss and Protection Violation Cause Codes */

 #define ECR_C_PROTV_INST_FETCH		0x00
 #define ECR_C_PROTV_LOAD		0x01
 #define ECR_C_PROTV_STORE		0x02
 #define ECR_C_PROTV_XCHG		0x03
 #define ECR_C_PROTV_MISALIG_DATA	0x04

 #define ECR_C_BIT_PROTV_MISALIG_DATA	10

 /* Machine Check Cause Code Values */
 #define ECR_C_MCHK_DUP_TLB		0x01

 /* DTLB Miss Exception Cause Code Values */
 #define ECR_C_BIT_DTLB_LD_MISS		8
 #define ECR_C_BIT_DTLB_ST_MISS		9

 /* Auxiliary registers */
 #define AUX_IDENTITY		4
 #define AUX_INTR_VEC_BASE	0x25
 #define AUX_NON_VOL		0x5e

 /*
  * Floating Pt Registers
  * Status regs are read-only (build-time) so need not be saved/restored
  */
 #define ARC_AUX_FP_STAT         0x300
 #define ARC_AUX_DPFP_1L         0x301
 #define ARC_AUX_DPFP_1H         0x302
 #define ARC_AUX_DPFP_2L         0x303
 #define ARC_AUX_DPFP_2H         0x304
 #define ARC_AUX_DPFP_STAT       0x305

 #ifndef __ASSEMBLY__

 /*
  ******************************************************************
  *      Inline ASM macros to read/write AUX Regs
  *      Essentially invocation of lr/sr insns from "C"
  */

 #if 1

 #define read_aux_reg(reg)	__builtin_arc_lr(reg)

 /* gcc builtin sr needs reg param to be long immediate */
 #define write_aux_reg(reg_immed, val)		\
 		__builtin_arc_sr((unsigned int)val, reg_immed)

 #else

 #define read_aux_reg(reg)		\
 ({					\
 	unsigned int __ret;		\
 	__asm__ __volatile__(		\
 	"	lr    %0, [%1]"		\
 	: "=r"(__ret)			\
 	: "i"(reg));			\
 	__ret;				\
 })

 /*
  * Aux Reg address is specified as long immediate by caller
  * e.g.
  *    write_aux_reg(0x69, some_val);
  * This generates tightest code.
  */
 #define write_aux_reg(reg_imm, val)	\
 ({					\
 	__asm__ __volatile__(		\
 	"	sr   %0, [%1]	\n"	\
 	:				\
 	: "ir"(val), "i"(reg_imm));	\
 })

 /*
  * Aux Reg address is specified in a variable
  *  * e.g.
  *      reg_num = 0x69
  *      write_aux_reg2(reg_num, some_val);
  * This has to generate glue code to load the reg num from
  *  memory to a reg hence not recommended.
  */
 #define write_aux_reg2(reg_in_var, val)		\
 ({						\
 	unsigned int tmp;			\
 						\
 	__asm__ __volatile__(			\
 	"	ld   %0, [%2]	\n\t"		\
 	"	sr   %1, [%0]	\n\t"		\
 	: "=&r"(tmp)				\
 	: "r"(val), "memory"(&reg_in_var));	\
 })

 #endif

 #define READ_BCR(reg, into)				\
 {							\
 	unsigned int tmp;				\
 	tmp = read_aux_reg(reg);			\
 	if (sizeof(tmp) == sizeof(into)) {		\
 		into = *((typeof(into) *)&tmp);		\
 	} else {					\
 		extern void bogus_undefined(void);	\
 		bogus_undefined();			\
 	}						\
 }

 #define WRITE_AUX(reg, into)				\
 {							\
 	unsigned int tmp;				\
 	if (sizeof(tmp) == sizeof(into)) {		\
 		tmp = (*(unsigned int *)&(into));	\
 		write_aux_reg(reg, tmp);		\
 	} else  {					\
 		extern void bogus_undefined(void);	\
 		bogus_undefined();			\
 	}						\
 }

 /* Helpers */
 #define TO_KB(bytes)		((bytes) >> 10)
 #define TO_MB(bytes)		(TO_KB(bytes) >> 10)
 #define PAGES_TO_KB(n_pages)	((n_pages) << (PAGE_SHIFT - 10))
 #define PAGES_TO_MB(n_pages)	(PAGES_TO_KB(n_pages) >> 10)


 /*
  ***************************************************************
  * Build Configuration Registers, with encoded hardware config
  */
 struct bcr_identity {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int chip_id:16, cpu_id:8, family:8;
 #else
 	unsigned int family:8, cpu_id:8, chip_id:16;
 #endif
 };

 struct bcr_isa {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int div_rem:4, pad2:4, ldd:1, unalign:1, atomic:1, be:1,
 		     pad1:11, atomic1:1, ver:8;
 #else
 	unsigned int ver:8, atomic1:1, pad1:11, be:1, atomic:1, unalign:1,
 		     ldd:1, pad2:4, div_rem:4;
 #endif
 };

 struct bcr_mpy {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int pad:8, x1616:8, dsp:4, cycles:2, type:2, ver:8;
 #else
 	unsigned int ver:8, type:2, cycles:2, dsp:4, x1616:8, pad:8;
 #endif
 };

 struct bcr_extn_xymem {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int ram_org:2, num_banks:4, bank_sz:4, ver:8;
 #else
 	unsigned int ver:8, bank_sz:4, num_banks:4, ram_org:2;
 #endif
 };

 struct bcr_perip {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int start:8, pad2:8, sz:8, ver:8;
 #else
 	unsigned int ver:8, sz:8, pad2:8, start:8;
 #endif
 };

 struct bcr_iccm {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int base:16, pad:5, sz:3, ver:8;
 #else
 	unsigned int ver:8, sz:3, pad:5, base:16;
 #endif
 };

 /* DCCM Base Address Register: ARC_REG_DCCMBASE_BCR */
 struct bcr_dccm_base {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int addr:24, ver:8;
 #else
 	unsigned int ver:8, addr:24;
 #endif
 };

 /* DCCM RAM Configuration Register: ARC_REG_DCCM_BCR */
 struct bcr_dccm {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int res:21, sz:3, ver:8;
 #else
 	unsigned int ver:8, sz:3, res:21;
 #endif
 };

 /* ARCompact: Both SP and DP FPU BCRs have same format */
 struct bcr_fp_arcompact {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int fast:1, ver:8;
 #else
 	unsigned int ver:8, fast:1;
 #endif
 };

 struct bcr_fp_arcv2 {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int pad2:15, dp:1, pad1:7, sp:1, ver:8;
 #else
 	unsigned int ver:8, sp:1, pad1:7, dp:1, pad2:15;
 #endif
 };

 struct bcr_timer {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int pad2:15, rtsc:1, pad1:5, rtc:1, t1:1, t0:1, ver:8;
 #else
 	unsigned int ver:8, t0:1, t1:1, rtc:1, pad1:5, rtsc:1, pad2:15;
 #endif
 };

 struct bcr_bpu_arcompact {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int pad2:19, fam:1, pad:2, ent:2, ver:8;
 #else
 	unsigned int ver:8, ent:2, pad:2, fam:1, pad2:19;
 #endif
 };

 struct bcr_bpu_arcv2 {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int pad:6, fbe:2, tqe:2, ts:4, ft:1, rse:2, pte:3, bce:3, ver:8;
 #else
 	unsigned int ver:8, bce:3, pte:3, rse:2, ft:1, ts:4, tqe:2, fbe:2, pad:6;
 #endif
 };

 struct bcr_generic {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int pad:24, ver:8;
 #else
 	unsigned int ver:8, pad:24;
 #endif
 };

 /*
  *******************************************************************
  * Generic structures to hold build configuration used at runtime
  */

 struct cpuinfo_arc_mmu {
 	unsigned int ver:4, pg_sz_k:8, s_pg_sz_m:8, u_dtlb:6, u_itlb:6;
 	unsigned int num_tlb:16, sets:12, ways:4;
 };

 struct cpuinfo_arc_cache {
 	unsigned int sz_k:14, line_len:8, assoc:4, ver:4, alias:1, vipt:1;
 };

 struct cpuinfo_arc_bpu {
 	unsigned int ver, full, num_cache, num_pred;
 };

 struct cpuinfo_arc_ccm {
 	unsigned int base_addr, sz;
 };

 struct cpuinfo_arc {
 	struct cpuinfo_arc_cache icache, dcache, slc;
 	struct cpuinfo_arc_mmu mmu;
 	struct cpuinfo_arc_bpu bpu;
 	struct bcr_identity core;
 	struct bcr_isa isa;
 	struct bcr_timer timers;
 	unsigned int vec_base;
 	struct cpuinfo_arc_ccm iccm, dccm;
 	struct {
 		unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, pad1:3,
 			     fpu_sp:1, fpu_dp:1, pad2:6,
 			     debug:1, ap:1, smart:1, rtt:1, pad3:4,
 			     pad4:8;
 	} extn;
 	struct bcr_mpy extn_mpy;
 	struct bcr_extn_xymem extn_xymem;
 };

 extern struct cpuinfo_arc cpuinfo_arc700[];

 static inline int is_isa_arcv2(void)
 {
 	return IS_ENABLED(CONFIG_ISA_ARCV2);
 }

 static inline int is_isa_arcompact(void)
 {
 	return IS_ENABLED(CONFIG_ISA_ARCOMPACT);
 }

 #if defined(CONFIG_ISA_ARCOMPACT) && !defined(_CPU_DEFAULT_A7)
 #error "Toolchain not configured for ARCompact builds"
 #elif defined(CONFIG_ISA_ARCV2) && !defined(_CPU_DEFAULT_HS)
 #error "Toolchain not configured for ARCv2 builds"
 #endif

 #endif /* __ASEMBLY__ */

 #endif /* _ASM_ARC_ARCREGS_H */
	/*
	* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.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.
	*/

	#ifndef _ASM_ARC_ARCREGS_H
	#define _ASM_ARC_ARCREGS_H

	/* Build Configuration Registers */
	#define ARC_REG_DCCMBASE_BCR 0x61 /* DCCM Base Addr */
	#define ARC_REG_CRC_BCR 0x62
	#define ARC_REG_VECBASE_BCR 0x68
	#define ARC_REG_PERIBASE_BCR 0x69
	#define ARC_REG_FP_BCR 0x6B /* ARCompact: Single-Precision FPU */
	#define ARC_REG_DPFP_BCR 0x6C /* ARCompact: Dbl Precision FPU */
	#define ARC_REG_FP_V2_BCR 0xc8 /* ARCv2 FPU */
	#define ARC_REG_SLC_BCR 0xce
	#define ARC_REG_DCCM_BCR 0x74 /* DCCM Present + SZ */
	#define ARC_REG_TIMERS_BCR 0x75
	#define ARC_REG_AP_BCR 0x76
	#define ARC_REG_ICCM_BCR 0x78
	#define ARC_REG_XY_MEM_BCR 0x79
	#define ARC_REG_MAC_BCR 0x7a
	#define ARC_REG_MUL_BCR 0x7b
	#define ARC_REG_SWAP_BCR 0x7c
	#define ARC_REG_NORM_BCR 0x7d
	#define ARC_REG_MIXMAX_BCR 0x7e
	#define ARC_REG_BARREL_BCR 0x7f
	#define ARC_REG_D_UNCACH_BCR 0x6A
	#define ARC_REG_BPU_BCR 0xc0
	#define ARC_REG_ISA_CFG_BCR 0xc1
	#define ARC_REG_RTT_BCR 0xF2
	#define ARC_REG_IRQ_BCR 0xF3
	#define ARC_REG_SMART_BCR 0xFF

	/* status32 Bits Positions */
	#define STATUS_AE_BIT 5 /* Exception active */
	#define STATUS_DE_BIT 6 /* PC is in delay slot */
	#define STATUS_U_BIT 7 /* User/Kernel mode */
	#define STATUS_L_BIT 12 /* Loop inhibit */

	/* These masks correspond to the status word(STATUS_32) bits */
	#define STATUS_AE_MASK (1<<STATUS_AE_BIT)
	#define STATUS_DE_MASK (1<<STATUS_DE_BIT)
	#define STATUS_U_MASK (1<<STATUS_U_BIT)
	#define STATUS_L_MASK (1<<STATUS_L_BIT)

	/*
	* ECR: Exception Cause Reg bits-n-pieces
	* [23:16] = Exception Vector
	* [15: 8] = Exception Cause Code
	* [ 7: 0] = Exception Parameters (for certain types only)
	*/
	#ifdef CONFIG_ISA_ARCOMPACT
	#define ECR_V_MEM_ERR 0x01
	#define ECR_V_INSN_ERR 0x02
	#define ECR_V_MACH_CHK 0x20
	#define ECR_V_ITLB_MISS 0x21
	#define ECR_V_DTLB_MISS 0x22
	#define ECR_V_PROTV 0x23
	#define ECR_V_TRAP 0x25
	#else
	#define ECR_V_MEM_ERR 0x01
	#define ECR_V_INSN_ERR 0x02
	#define ECR_V_MACH_CHK 0x03
	#define ECR_V_ITLB_MISS 0x04
	#define ECR_V_DTLB_MISS 0x05
	#define ECR_V_PROTV 0x06
	#define ECR_V_TRAP 0x09
	#endif

	/* DTLB Miss and Protection Violation Cause Codes */

	#define ECR_C_PROTV_INST_FETCH 0x00
	#define ECR_C_PROTV_LOAD 0x01
	#define ECR_C_PROTV_STORE 0x02
	#define ECR_C_PROTV_XCHG 0x03
	#define ECR_C_PROTV_MISALIG_DATA 0x04

	#define ECR_C_BIT_PROTV_MISALIG_DATA 10

	/* Machine Check Cause Code Values */
	#define ECR_C_MCHK_DUP_TLB 0x01

	/* DTLB Miss Exception Cause Code Values */
	#define ECR_C_BIT_DTLB_LD_MISS 8
	#define ECR_C_BIT_DTLB_ST_MISS 9

	/* Auxiliary registers */
	#define AUX_IDENTITY 4
	#define AUX_INTR_VEC_BASE 0x25
	#define AUX_NON_VOL 0x5e

	/*
	* Floating Pt Registers
	* Status regs are read-only (build-time) so need not be saved/restored
	*/
	#define ARC_AUX_FP_STAT 0x300
	#define ARC_AUX_DPFP_1L 0x301
	#define ARC_AUX_DPFP_1H 0x302
	#define ARC_AUX_DPFP_2L 0x303
	#define ARC_AUX_DPFP_2H 0x304
	#define ARC_AUX_DPFP_STAT 0x305

	#ifndef __ASSEMBLY__

	/*
	******************************************************************
	* Inline ASM macros to read/write AUX Regs
	* Essentially invocation of lr/sr insns from "C"
	*/

	#if 1

	#define read_aux_reg(reg) __builtin_arc_lr(reg)

	/* gcc builtin sr needs reg param to be long immediate */
	#define write_aux_reg(reg_immed, val) \
	__builtin_arc_sr((unsigned int)val, reg_immed)

	#else

	#define read_aux_reg(reg) \
	({ \
	unsigned int __ret; \
	__asm__ __volatile__( \
	" lr %0, [%1]" \
	: "=r"(__ret) \
	: "i"(reg)); \
	__ret; \
	})

	/*
	* Aux Reg address is specified as long immediate by caller
	* e.g.
	* write_aux_reg(0x69, some_val);
	* This generates tightest code.
	*/
	#define write_aux_reg(reg_imm, val) \
	({ \
	__asm__ __volatile__( \
	" sr %0, [%1] \n" \
	: \
	: "ir"(val), "i"(reg_imm)); \
	})

	/*
	* Aux Reg address is specified in a variable
	* * e.g.
	* reg_num = 0x69
	* write_aux_reg2(reg_num, some_val);
	* This has to generate glue code to load the reg num from
	* memory to a reg hence not recommended.
	*/
	#define write_aux_reg2(reg_in_var, val) \
	({ \
	unsigned int tmp; \
	\
	__asm__ __volatile__( \
	" ld %0, [%2] \n\t" \
	" sr %1, [%0] \n\t" \
	: "=&r"(tmp) \
	: "r"(val), "memory"(&reg_in_var)); \
	})

	#endif

	#define READ_BCR(reg, into) \
	{ \
	unsigned int tmp; \
	tmp = read_aux_reg(reg); \
	if (sizeof(tmp) == sizeof(into)) { \
	into = ((typeof(into) )&tmp); \
	} else { \
	extern void bogus_undefined(void); \
	bogus_undefined(); \
	} \
	}

	#define WRITE_AUX(reg, into) \
	{ \
	unsigned int tmp; \
	if (sizeof(tmp) == sizeof(into)) { \
	tmp = ((unsigned int )&(into)); \
	write_aux_reg(reg, tmp); \
	} else { \
	extern void bogus_undefined(void); \
	bogus_undefined(); \
	} \
	}

	/* Helpers */
	#define TO_KB(bytes) ((bytes) >> 10)
	#define TO_MB(bytes) (TO_KB(bytes) >> 10)
	#define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10))
	#define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10)


	/*
	***************************************************************
	* Build Configuration Registers, with encoded hardware config
	*/
	struct bcr_identity {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int chip_id:16, cpu_id:8, family:8;
	#else
	unsigned int family:8, cpu_id:8, chip_id:16;
	#endif
	};

	struct bcr_isa {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int div_rem:4, pad2:4, ldd:1, unalign:1, atomic:1, be:1,
	pad1:11, atomic1:1, ver:8;
	#else
	unsigned int ver:8, atomic1:1, pad1:11, be:1, atomic:1, unalign:1,
	ldd:1, pad2:4, div_rem:4;
	#endif
	};

	struct bcr_mpy {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int pad:8, x1616:8, dsp:4, cycles:2, type:2, ver:8;
	#else
	unsigned int ver:8, type:2, cycles:2, dsp:4, x1616:8, pad:8;
	#endif
	};

	struct bcr_extn_xymem {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int ram_org:2, num_banks:4, bank_sz:4, ver:8;
	#else
	unsigned int ver:8, bank_sz:4, num_banks:4, ram_org:2;
	#endif
	};

	struct bcr_perip {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int start:8, pad2:8, sz:8, ver:8;
	#else
	unsigned int ver:8, sz:8, pad2:8, start:8;
	#endif
	};

	struct bcr_iccm {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int base:16, pad:5, sz:3, ver:8;
	#else
	unsigned int ver:8, sz:3, pad:5, base:16;
	#endif
	};

	/* DCCM Base Address Register: ARC_REG_DCCMBASE_BCR */
	struct bcr_dccm_base {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int addr:24, ver:8;
	#else
	unsigned int ver:8, addr:24;
	#endif
	};

	/* DCCM RAM Configuration Register: ARC_REG_DCCM_BCR */
	struct bcr_dccm {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int res:21, sz:3, ver:8;
	#else
	unsigned int ver:8, sz:3, res:21;
	#endif
	};

	/* ARCompact: Both SP and DP FPU BCRs have same format */
	struct bcr_fp_arcompact {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int fast:1, ver:8;
	#else
	unsigned int ver:8, fast:1;
	#endif
	};

	struct bcr_fp_arcv2 {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int pad2:15, dp:1, pad1:7, sp:1, ver:8;
	#else
	unsigned int ver:8, sp:1, pad1:7, dp:1, pad2:15;
	#endif
	};

	struct bcr_timer {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int pad2:15, rtsc:1, pad1:5, rtc:1, t1:1, t0:1, ver:8;
	#else
	unsigned int ver:8, t0:1, t1:1, rtc:1, pad1:5, rtsc:1, pad2:15;
	#endif
	};

	struct bcr_bpu_arcompact {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int pad2:19, fam:1, pad:2, ent:2, ver:8;
	#else
	unsigned int ver:8, ent:2, pad:2, fam:1, pad2:19;
	#endif
	};

	struct bcr_bpu_arcv2 {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int pad:6, fbe:2, tqe:2, ts:4, ft:1, rse:2, pte:3, bce:3, ver:8;
	#else
	unsigned int ver:8, bce:3, pte:3, rse:2, ft:1, ts:4, tqe:2, fbe:2, pad:6;
	#endif
	};

	struct bcr_generic {
	#ifdef CONFIG_CPU_BIG_ENDIAN
	unsigned int pad:24, ver:8;
	#else
	unsigned int ver:8, pad:24;
	#endif
	};

	/*
	*******************************************************************
	* Generic structures to hold build configuration used at runtime
	*/

	struct cpuinfo_arc_mmu {
	unsigned int ver:4, pg_sz_k:8, s_pg_sz_m:8, u_dtlb:6, u_itlb:6;
	unsigned int num_tlb:16, sets:12, ways:4;
	};

	struct cpuinfo_arc_cache {
	unsigned int sz_k:14, line_len:8, assoc:4, ver:4, alias:1, vipt:1;
	};

	struct cpuinfo_arc_bpu {
	unsigned int ver, full, num_cache, num_pred;
	};

	struct cpuinfo_arc_ccm {
	unsigned int base_addr, sz;
	};

	struct cpuinfo_arc {
	struct cpuinfo_arc_cache icache, dcache, slc;
	struct cpuinfo_arc_mmu mmu;
	struct cpuinfo_arc_bpu bpu;
	struct bcr_identity core;
	struct bcr_isa isa;
	struct bcr_timer timers;
	unsigned int vec_base;
	struct cpuinfo_arc_ccm iccm, dccm;
	struct {
	unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, pad1:3,
	fpu_sp:1, fpu_dp:1, pad2:6,
	debug:1, ap:1, smart:1, rtt:1, pad3:4,
	pad4:8;
	} extn;
	struct bcr_mpy extn_mpy;
	struct bcr_extn_xymem extn_xymem;
	};

	extern struct cpuinfo_arc cpuinfo_arc700[];

	static inline int is_isa_arcv2(void)
	{
	return IS_ENABLED(CONFIG_ISA_ARCV2);
	}

	static inline int is_isa_arcompact(void)
	{
	return IS_ENABLED(CONFIG_ISA_ARCOMPACT);
	}

	#if defined(CONFIG_ISA_ARCOMPACT) && !defined(_CPU_DEFAULT_A7)
	#error "Toolchain not configured for ARCompact builds"
	#elif defined(CONFIG_ISA_ARCV2) && !defined(_CPU_DEFAULT_HS)
	#error "Toolchain not configured for ARCv2 builds"
	#endif

	#endif /* __ASEMBLY__ */

	#endif /* _ASM_ARC_ARCREGS_H */