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Diffstat (limited to 'target/cris/cpu.h')
| -rw-r--r-- | target/cris/cpu.h | 286 |
1 files changed, 0 insertions, 286 deletions
diff --git a/target/cris/cpu.h b/target/cris/cpu.h deleted file mode 100644 index 3904e5448c..0000000000 --- a/target/cris/cpu.h +++ /dev/null @@ -1,286 +0,0 @@ -/* - * CRIS virtual CPU header - * - * Copyright (c) 2007 AXIS Communications AB - * Written by Edgar E. Iglesias - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef CRIS_CPU_H -#define CRIS_CPU_H - -#include "cpu-qom.h" -#include "exec/cpu-defs.h" - -#define EXCP_NMI 1 -#define EXCP_GURU 2 -#define EXCP_BUSFAULT 3 -#define EXCP_IRQ 4 -#define EXCP_BREAK 5 - -/* CRIS-specific interrupt pending bits. */ -#define CPU_INTERRUPT_NMI CPU_INTERRUPT_TGT_EXT_3 - -/* CRUS CPU device objects interrupt lines. */ -/* PIC passes the vector for the IRQ as the value of it sends over qemu_irq */ -#define CRIS_CPU_IRQ 0 -#define CRIS_CPU_NMI 1 - -/* Register aliases. R0 - R15 */ -#define R_FP 8 -#define R_SP 14 -#define R_ACR 15 - -/* Support regs, P0 - P15 */ -#define PR_BZ 0 -#define PR_VR 1 -#define PR_PID 2 -#define PR_SRS 3 -#define PR_WZ 4 -#define PR_EXS 5 -#define PR_EDA 6 -#define PR_PREFIX 6 /* On CRISv10 P6 is reserved, we use it as prefix. */ -#define PR_MOF 7 -#define PR_DZ 8 -#define PR_EBP 9 -#define PR_ERP 10 -#define PR_SRP 11 -#define PR_NRP 12 -#define PR_CCS 13 -#define PR_USP 14 -#define PRV10_BRP 14 -#define PR_SPC 15 - -/* CPU flags. */ -#define Q_FLAG 0x80000000 -#define M_FLAG_V32 0x40000000 -#define PFIX_FLAG 0x800 /* CRISv10 Only. */ -#define F_FLAG_V10 0x400 -#define P_FLAG_V10 0x200 -#define S_FLAG 0x200 -#define R_FLAG 0x100 -#define P_FLAG 0x80 -#define M_FLAG_V10 0x80 -#define U_FLAG 0x40 -#define I_FLAG 0x20 -#define X_FLAG 0x10 -#define N_FLAG 0x08 -#define Z_FLAG 0x04 -#define V_FLAG 0x02 -#define C_FLAG 0x01 -#define ALU_FLAGS 0x1F - -/* Condition codes. */ -#define CC_CC 0 -#define CC_CS 1 -#define CC_NE 2 -#define CC_EQ 3 -#define CC_VC 4 -#define CC_VS 5 -#define CC_PL 6 -#define CC_MI 7 -#define CC_LS 8 -#define CC_HI 9 -#define CC_GE 10 -#define CC_LT 11 -#define CC_GT 12 -#define CC_LE 13 -#define CC_A 14 -#define CC_P 15 - -typedef struct { - uint32_t hi; - uint32_t lo; -} TLBSet; - -typedef struct CPUArchState { - uint32_t regs[16]; - /* P0 - P15 are referred to as special registers in the docs. */ - uint32_t pregs[16]; - - /* Pseudo register for the PC. Not directly accessible on CRIS. */ - uint32_t pc; - - /* Pseudo register for the kernel stack. */ - uint32_t ksp; - - /* Branch. */ - int dslot; - int btaken; - uint32_t btarget; - - /* Condition flag tracking. */ - uint32_t cc_op; - uint32_t cc_mask; - uint32_t cc_dest; - uint32_t cc_src; - uint32_t cc_result; - /* size of the operation, 1 = byte, 2 = word, 4 = dword. */ - int cc_size; - /* X flag at the time of cc snapshot. */ - int cc_x; - - /* CRIS has certain insns that lockout interrupts. */ - int locked_irq; - int interrupt_vector; - int fault_vector; - int trap_vector; - - /* FIXME: add a check in the translator to avoid writing to support - register sets beyond the 4th. The ISA allows up to 256! but in - practice there is no core that implements more than 4. - - Support function registers are used to control units close to the - core. Accesses do not pass down the normal hierarchy. - */ - uint32_t sregs[4][16]; - - /* Linear feedback shift reg in the mmu. Used to provide pseudo - randomness for the 'hint' the mmu gives to sw for choosing valid - sets on TLB refills. */ - uint32_t mmu_rand_lfsr; - - /* - * We just store the stores to the tlbset here for later evaluation - * when the hw needs access to them. - * - * One for I and another for D. - */ - TLBSet tlbsets[2][4][16]; - - /* Fields up to this point are cleared by a CPU reset */ - struct {} end_reset_fields; - - /* Members from load_info on are preserved across resets. */ - void *load_info; -} CPUCRISState; - -/** - * CRISCPU: - * @env: #CPUCRISState - * - * A CRIS CPU. - */ -struct ArchCPU { - CPUState parent_obj; - - CPUCRISState env; -}; - -/** - * CRISCPUClass: - * @parent_realize: The parent class' realize handler. - * @parent_phases: The parent class' reset phase handlers. - * @vr: Version Register value. - * - * A CRIS CPU model. - */ -struct CRISCPUClass { - CPUClass parent_class; - - DeviceRealize parent_realize; - ResettablePhases parent_phases; - - uint32_t vr; -}; - -#ifndef CONFIG_USER_ONLY -extern const VMStateDescription vmstate_cris_cpu; - -void cris_cpu_do_interrupt(CPUState *cpu); -void crisv10_cpu_do_interrupt(CPUState *cpu); -bool cris_cpu_exec_interrupt(CPUState *cpu, int int_req); - -bool cris_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr); -hwaddr cris_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); -#endif - -void cris_cpu_dump_state(CPUState *cs, FILE *f, int flags); - -int crisv10_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); -int cris_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); -int cris_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); - -void cris_initialize_tcg(void); -void cris_initialize_crisv10_tcg(void); - -/* Instead of computing the condition codes after each CRIS instruction, - * QEMU just stores one operand (called CC_SRC), the result - * (called CC_DEST) and the type of operation (called CC_OP). When the - * condition codes are needed, the condition codes can be calculated - * using this information. Condition codes are not generated if they - * are only needed for conditional branches. - */ -enum { - CC_OP_DYNAMIC, /* Use env->cc_op */ - CC_OP_FLAGS, - CC_OP_CMP, - CC_OP_MOVE, - CC_OP_ADD, - CC_OP_ADDC, - CC_OP_MCP, - CC_OP_ADDU, - CC_OP_SUB, - CC_OP_SUBU, - CC_OP_NEG, - CC_OP_BTST, - CC_OP_MULS, - CC_OP_MULU, - CC_OP_DSTEP, - CC_OP_MSTEP, - CC_OP_BOUND, - - CC_OP_OR, - CC_OP_AND, - CC_OP_XOR, - CC_OP_LSL, - CC_OP_LSR, - CC_OP_ASR, - CC_OP_LZ -}; - -/* CRIS uses 8k pages. */ -#define MMAP_SHIFT TARGET_PAGE_BITS - -#define CPU_RESOLVING_TYPE TYPE_CRIS_CPU - -/* MMU modes definitions */ -#define MMU_USER_IDX 1 - -/* Support function regs. */ -#define SFR_RW_GC_CFG 0][0 -#define SFR_RW_MM_CFG env->pregs[PR_SRS]][0 -#define SFR_RW_MM_KBASE_LO env->pregs[PR_SRS]][1 -#define SFR_RW_MM_KBASE_HI env->pregs[PR_SRS]][2 -#define SFR_R_MM_CAUSE env->pregs[PR_SRS]][3 -#define SFR_RW_MM_TLB_SEL env->pregs[PR_SRS]][4 -#define SFR_RW_MM_TLB_LO env->pregs[PR_SRS]][5 -#define SFR_RW_MM_TLB_HI env->pregs[PR_SRS]][6 - -#include "exec/cpu-all.h" - -static inline void cpu_get_tb_cpu_state(CPUCRISState *env, vaddr *pc, - uint64_t *cs_base, uint32_t *flags) -{ - *pc = env->pc; - *cs_base = 0; - *flags = env->dslot | - (env->pregs[PR_CCS] & (S_FLAG | P_FLAG | U_FLAG - | X_FLAG | PFIX_FLAG)); -} - -#endif |