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Diffstat (limited to '')
| -rw-r--r-- | arch/arc/include/asm/arcregs.h | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h new file mode 100644 index 000000000..bdbdaef90 --- /dev/null +++ b/arch/arc/include/asm/arcregs.h @@ -0,0 +1,334 @@ +/* + * 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 */ |