18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci// Copyright (C) 2005-2017 Andes Technology Corporation 38c2ecf20Sopenharmony_ci 48c2ecf20Sopenharmony_ci#ifndef _ASM_NDS32_NDS32_H_ 58c2ecf20Sopenharmony_ci#define _ASM_NDS32_NDS32_H_ 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_ci#include <asm/bitfield.h> 88c2ecf20Sopenharmony_ci#include <asm/cachectl.h> 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ci#ifndef __ASSEMBLY__ 118c2ecf20Sopenharmony_ci#include <linux/init.h> 128c2ecf20Sopenharmony_ci#include <asm/barrier.h> 138c2ecf20Sopenharmony_ci#include <nds32_intrinsic.h> 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci#ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 168c2ecf20Sopenharmony_ci#define FP_OFFSET (-3) 178c2ecf20Sopenharmony_ci#else 188c2ecf20Sopenharmony_ci#define FP_OFFSET (-2) 198c2ecf20Sopenharmony_ci#endif 208c2ecf20Sopenharmony_ci#define LP_OFFSET (-1) 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ciextern void __init early_trap_init(void); 238c2ecf20Sopenharmony_cistatic inline void GIE_ENABLE(void) 248c2ecf20Sopenharmony_ci{ 258c2ecf20Sopenharmony_ci mb(); 268c2ecf20Sopenharmony_ci __nds32__gie_en(); 278c2ecf20Sopenharmony_ci} 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_cistatic inline void GIE_DISABLE(void) 308c2ecf20Sopenharmony_ci{ 318c2ecf20Sopenharmony_ci mb(); 328c2ecf20Sopenharmony_ci __nds32__gie_dis(); 338c2ecf20Sopenharmony_ci} 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_cistatic inline unsigned long CACHE_SET(unsigned char cache) 368c2ecf20Sopenharmony_ci{ 378c2ecf20Sopenharmony_ci 388c2ecf20Sopenharmony_ci if (cache == ICACHE) 398c2ecf20Sopenharmony_ci return 64 << ((__nds32__mfsr(NDS32_SR_ICM_CFG) & ICM_CFG_mskISET) >> 408c2ecf20Sopenharmony_ci ICM_CFG_offISET); 418c2ecf20Sopenharmony_ci else 428c2ecf20Sopenharmony_ci return 64 << ((__nds32__mfsr(NDS32_SR_DCM_CFG) & DCM_CFG_mskDSET) >> 438c2ecf20Sopenharmony_ci DCM_CFG_offDSET); 448c2ecf20Sopenharmony_ci} 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_cistatic inline unsigned long CACHE_WAY(unsigned char cache) 478c2ecf20Sopenharmony_ci{ 488c2ecf20Sopenharmony_ci 498c2ecf20Sopenharmony_ci if (cache == ICACHE) 508c2ecf20Sopenharmony_ci return 1 + 518c2ecf20Sopenharmony_ci ((__nds32__mfsr(NDS32_SR_ICM_CFG) & ICM_CFG_mskIWAY) >> ICM_CFG_offIWAY); 528c2ecf20Sopenharmony_ci else 538c2ecf20Sopenharmony_ci return 1 + 548c2ecf20Sopenharmony_ci ((__nds32__mfsr(NDS32_SR_DCM_CFG) & DCM_CFG_mskDWAY) >> DCM_CFG_offDWAY); 558c2ecf20Sopenharmony_ci} 568c2ecf20Sopenharmony_ci 578c2ecf20Sopenharmony_cistatic inline unsigned long CACHE_LINE_SIZE(unsigned char cache) 588c2ecf20Sopenharmony_ci{ 598c2ecf20Sopenharmony_ci 608c2ecf20Sopenharmony_ci if (cache == ICACHE) 618c2ecf20Sopenharmony_ci return 8 << 628c2ecf20Sopenharmony_ci (((__nds32__mfsr(NDS32_SR_ICM_CFG) & ICM_CFG_mskISZ) >> ICM_CFG_offISZ) - 1); 638c2ecf20Sopenharmony_ci else 648c2ecf20Sopenharmony_ci return 8 << 658c2ecf20Sopenharmony_ci (((__nds32__mfsr(NDS32_SR_DCM_CFG) & DCM_CFG_mskDSZ) >> DCM_CFG_offDSZ) - 1); 668c2ecf20Sopenharmony_ci} 678c2ecf20Sopenharmony_ci 688c2ecf20Sopenharmony_ci#endif /* __ASSEMBLY__ */ 698c2ecf20Sopenharmony_ci 708c2ecf20Sopenharmony_ci#define IVB_BASE PHYS_OFFSET /* in user space for intr/exc/trap/break table base, 64KB aligned 718c2ecf20Sopenharmony_ci * We defined at the start of the physical memory */ 728c2ecf20Sopenharmony_ci 738c2ecf20Sopenharmony_ci/* dispatched sub-entry exception handler numbering */ 748c2ecf20Sopenharmony_ci#define RD_PROT 0 /* read protrection */ 758c2ecf20Sopenharmony_ci#define WRT_PROT 1 /* write protection */ 768c2ecf20Sopenharmony_ci#define NOEXEC 2 /* non executable */ 778c2ecf20Sopenharmony_ci#define PAGE_MODIFY 3 /* page modified */ 788c2ecf20Sopenharmony_ci#define ACC_BIT 4 /* access bit */ 798c2ecf20Sopenharmony_ci#define RESVED_PTE 5 /* reserved PTE attribute */ 808c2ecf20Sopenharmony_ci/* reserved 6 ~ 16 */ 818c2ecf20Sopenharmony_ci 828c2ecf20Sopenharmony_ci#endif /* _ASM_NDS32_NDS32_H_ */ 83