/
arcregs.h
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/
arcregs.h
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/*
* 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_AUX_DCCM 0x18 /* DCCM Base Addr ARCv2 */
#define ARC_REG_ERP_CTRL 0x3F /* ARCv2 Error protection control */
#define ARC_REG_DCCM_BASE_BUILD 0x61 /* DCCM Base Addr ARCompact */
#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_ERP_BUILD 0xc7 /* ARCv2 Error protection Build: ECC/Parity */
#define ARC_REG_FP_V2_BCR 0xc8 /* ARCv2 FPU */
#define ARC_REG_SLC_BCR 0xce
#define ARC_REG_DCCM_BUILD 0x74 /* DCCM size (common) */
#define ARC_REG_AP_BCR 0x76
#define ARC_REG_ICCM_BUILD 0x78 /* ICCM size (common) */
#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_LPB_BUILD 0xE9 /* ARCv2 Loop Buffer Build */
#define ARC_REG_RTT_BCR 0xF2
#define ARC_REG_IRQ_BCR 0xF3
#define ARC_REG_MICRO_ARCH_BCR 0xF9 /* ARCv2 Product revision */
#define ARC_REG_SMART_BCR 0xFF
#define ARC_REG_CLUSTER_BCR 0xcf
#define ARC_REG_AUX_ICCM 0x208 /* ICCM Base Addr (ARCv2) */
#define ARC_REG_LPB_CTRL 0x488 /* ARCv2 Loop Buffer control */
/* Common for ARCompact and ARCv2 status register */
#define ARC_REG_STATUS32 0x0A
/* 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_Z_BIT 11
#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_Z_MASK (1<<STATUS_Z_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_EXEC_CTRL 8
#define AUX_INTR_VEC_BASE 0x25
#define AUX_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__
#include <soc/arc/aux.h>
/* 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_arcv2 {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int div_rem:4, pad2:4, ldd:1, unalign:1, atomic:1, be:1,
pad1:12, ver:8;
#else
unsigned int ver:8, pad1:12, be:1, atomic:1, unalign:1,
ldd:1, pad2:4, div_rem:4;
#endif
};
struct bcr_uarch_build_arcv2 {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:8, prod:8, maj:8, min:8;
#else
unsigned int min:8, maj:8, prod:8, pad:8;
#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_iccm_arcompact {
#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
};
struct bcr_iccm_arcv2 {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:8, sz11:4, sz01:4, sz10:4, sz00:4, ver:8;
#else
unsigned int ver:8, sz00:4, sz10:4, sz01:4, sz11:4, pad:8;
#endif
};
struct bcr_dccm_arcompact {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int res:21, sz:3, ver:8;
#else
unsigned int ver:8, sz:3, res:21;
#endif
};
struct bcr_dccm_arcv2 {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad2:12, cyc:3, pad1:1, sz1:4, sz0:4, ver:8;
#else
unsigned int ver:8, sz0:4, sz1:4, pad1:1, cyc:3, pad2:12;
#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
};
#include <soc/arc/timers.h>
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
};
/* Error Protection Build: ECC/Parity */
struct bcr_erp {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad3:5, mmu:3, pad2:4, ic:3, dc:3, pad1:6, ver:8;
#else
unsigned int ver:8, pad1:6, dc:3, ic:3, pad2:4, mmu:3, pad3:5;
#endif
};
/* Error Protection Control */
struct ctl_erp {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad2:27, mpd:1, pad1:2, dpd:1, dpi:1;
#else
unsigned int dpi:1, dpd:1, pad1:2, mpd:1, pad2:27;
#endif
};
struct bcr_lpb {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:16, entries:8, ver:8;
#else
unsigned int ver:8, entries:8, pad:16;
#endif
};
struct bcr_generic {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int info:24, ver:8;
#else
unsigned int ver:8, info: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, pad:10, sasid:1, pae:1;
unsigned int sets:12, ways:4, u_dtlb:8, u_itlb:8;
};
struct cpuinfo_arc_cache {
unsigned int sz_k:14, line_len:8, assoc:4, alias:1, vipt:1, pad:4;
};
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_arcv2 isa;
const char *details, *name;
unsigned int vec_base;
struct cpuinfo_arc_ccm iccm, dccm;
struct {
unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, swape:1, pad1:2,
fpu_sp:1, fpu_dp:1, dual:1, dual_enb:1, pad2:4,
debug:1, ap:1, smart:1, rtt:1, pad3:4,
timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4;
} 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);
}
#endif /* __ASEMBLY__ */
#endif /* _ASM_ARC_ARCREGS_H */