1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * QEMU LoongArch CPU -- internal functions and types 4 * 5 * Copyright (c) 2021 Loongson Technology Corporation Limited 6 */ 7 8 #ifndef LOONGARCH_INTERNALS_H 9 #define LOONGARCH_INTERNALS_H 10 11 #define FCMP_LT 0b0001 /* fp0 < fp1 */ 12 #define FCMP_EQ 0b0010 /* fp0 = fp1 */ 13 #define FCMP_UN 0b0100 /* unordered */ 14 #define FCMP_GT 0b1000 /* fp0 > fp1 */ 15 16 #define TARGET_PHYS_MASK MAKE_64BIT_MASK(0, TARGET_PHYS_ADDR_SPACE_BITS) 17 #define TARGET_VIRT_MASK MAKE_64BIT_MASK(0, TARGET_VIRT_ADDR_SPACE_BITS) 18 19 void loongarch_translate_init(void); 20 21 void G_NORETURN do_raise_exception(CPULoongArchState *env, 22 uint32_t exception, 23 uintptr_t pc); 24 25 const char *loongarch_exception_name(int32_t exception); 26 27 #ifdef CONFIG_TCG 28 int ieee_ex_to_loongarch(int xcpt); 29 void restore_fp_status(CPULoongArchState *env); 30 #endif 31 32 #ifndef CONFIG_USER_ONLY 33 enum { 34 TLBRET_MATCH = 0, 35 TLBRET_BADADDR = 1, 36 TLBRET_NOMATCH = 2, 37 TLBRET_INVALID = 3, 38 TLBRET_DIRTY = 4, 39 TLBRET_RI = 5, 40 TLBRET_XI = 6, 41 TLBRET_PE = 7, 42 }; 43 44 extern const VMStateDescription vmstate_loongarch_cpu; 45 46 void loongarch_cpu_set_irq(void *opaque, int irq, int level); 47 48 void loongarch_constant_timer_cb(void *opaque); 49 uint64_t cpu_loongarch_get_constant_timer_counter(LoongArchCPU *cpu); 50 uint64_t cpu_loongarch_get_constant_timer_ticks(LoongArchCPU *cpu); 51 void cpu_loongarch_store_constant_timer_config(LoongArchCPU *cpu, 52 uint64_t value); 53 bool loongarch_tlb_search(CPULoongArchState *env, target_ulong vaddr, 54 int *index); 55 int get_physical_address(CPULoongArchState *env, hwaddr *physical, 56 int *prot, target_ulong address, 57 MMUAccessType access_type, int mmu_idx); 58 hwaddr loongarch_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); 59 60 #ifdef CONFIG_TCG 61 bool loongarch_cpu_tlb_fill(CPUState *cs, vaddr address, int size, 62 MMUAccessType access_type, int mmu_idx, 63 bool probe, uintptr_t retaddr); 64 #endif 65 #endif /* !CONFIG_USER_ONLY */ 66 67 uint64_t read_fcc(CPULoongArchState *env); 68 void write_fcc(CPULoongArchState *env, uint64_t val); 69 70 int loongarch_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n); 71 int loongarch_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n); 72 void loongarch_cpu_register_gdb_regs_for_features(CPUState *cs); 73 int loongarch_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu, 74 int cpuid, DumpState *s); 75 76 #endif 77