diff options
Diffstat (limited to 'target/hppa/cpu.h')
| -rw-r--r-- | target/hppa/cpu.h | 180 |
1 files changed, 106 insertions, 74 deletions
diff --git a/target/hppa/cpu.h b/target/hppa/cpu.h index 798d0c26d7..144794d089 100644 --- a/target/hppa/cpu.h +++ b/target/hppa/cpu.h @@ -23,6 +23,7 @@ #include "cpu-qom.h" #include "exec/cpu-defs.h" #include "qemu/cpu-float.h" +#include "qemu/interval-tree.h" /* PA-RISC 1.x processors have a strong memory model. */ /* ??? While we do not yet implement PA-RISC 2.0, those processors have @@ -30,21 +31,33 @@ basis. It's probably easier to fall back to a strong memory model. */ #define TCG_GUEST_DEFAULT_MO TCG_MO_ALL -#define MMU_KERNEL_IDX 11 -#define MMU_PL1_IDX 12 -#define MMU_PL2_IDX 13 -#define MMU_USER_IDX 14 -#define MMU_PHYS_IDX 15 +#define MMU_KERNEL_IDX 7 +#define MMU_KERNEL_P_IDX 8 +#define MMU_PL1_IDX 9 +#define MMU_PL1_P_IDX 10 +#define MMU_PL2_IDX 11 +#define MMU_PL2_P_IDX 12 +#define MMU_USER_IDX 13 +#define MMU_USER_P_IDX 14 +#define MMU_PHYS_IDX 15 -#define PRIV_TO_MMU_IDX(priv) (MMU_KERNEL_IDX + (priv)) -#define MMU_IDX_TO_PRIV(mmu_idx) ((mmu_idx) - MMU_KERNEL_IDX) +#define MMU_IDX_TO_PRIV(MIDX) (((MIDX) - MMU_KERNEL_IDX) / 2) +#define MMU_IDX_TO_P(MIDX) (((MIDX) - MMU_KERNEL_IDX) & 1) +#define PRIV_P_TO_MMU_IDX(PRIV, P) ((PRIV) * 2 + !!(P) + MMU_KERNEL_IDX) -#define TARGET_INSN_START_EXTRA_WORDS 1 +#define TARGET_INSN_START_EXTRA_WORDS 2 /* No need to flush MMU_PHYS_IDX */ #define HPPA_MMU_FLUSH_MASK \ - (1 << MMU_KERNEL_IDX | 1 << MMU_PL1_IDX | \ - 1 << MMU_PL2_IDX | 1 << MMU_USER_IDX) + (1 << MMU_KERNEL_IDX | 1 << MMU_KERNEL_P_IDX | \ + 1 << MMU_PL1_IDX | 1 << MMU_PL1_P_IDX | \ + 1 << MMU_PL2_IDX | 1 << MMU_PL2_P_IDX | \ + 1 << MMU_USER_IDX | 1 << MMU_USER_P_IDX) + +/* Indicies to flush for access_id changes. */ +#define HPPA_MMU_FLUSH_P_MASK \ + (1 << MMU_KERNEL_P_IDX | 1 << MMU_PL1_P_IDX | \ + 1 << MMU_PL2_P_IDX | 1 << MMU_USER_P_IDX) /* Hardware exceptions, interrupts, faults, and traps. */ #define EXCP_HPMC 1 /* high priority machine check */ @@ -107,11 +120,7 @@ #define PSW_T 0x01000000 #define PSW_S 0x02000000 #define PSW_E 0x04000000 -#ifdef TARGET_HPPA64 #define PSW_W 0x08000000 /* PA2.0 only */ -#else -#define PSW_W 0 -#endif #define PSW_Z 0x40000000 /* PA1.x only */ #define PSW_Y 0x80000000 /* PA1.x only */ @@ -124,15 +133,12 @@ #define PSW_SM_P PSW_P #define PSW_SM_Q PSW_Q /* Enable Interrupt State Collection */ #define PSW_SM_R PSW_R /* Enable Recover Counter Trap */ -#ifdef TARGET_HPPA64 #define PSW_SM_E 0x100 #define PSW_SM_W 0x200 /* PA2.0 only : Enable Wide Mode */ -#else -#define PSW_SM_E 0 -#define PSW_SM_W 0 -#endif #define CR_RC 0 +#define CR_PSW_DEFAULT 6 /* see SeaBIOS PDC_PSW firmware call */ +#define PDC_PSW_WIDE_BIT 2 #define CR_PID1 8 #define CR_PID2 9 #define CR_PID3 12 @@ -150,45 +156,37 @@ #define CR_IPSW 22 #define CR_EIRR 23 -#if TARGET_REGISTER_BITS == 32 -typedef uint32_t target_ureg; -typedef int32_t target_sreg; -#define TREG_FMT_lx "%08"PRIx32 -#define TREG_FMT_ld "%"PRId32 -#else -typedef uint64_t target_ureg; -typedef int64_t target_sreg; -#define TREG_FMT_lx "%016"PRIx64 -#define TREG_FMT_ld "%"PRId64 -#endif +typedef struct HPPATLBEntry { + union { + IntervalTreeNode itree; + struct HPPATLBEntry *unused_next; + }; + + target_ulong pa; + + unsigned entry_valid : 1; -typedef struct { - uint64_t va_b; - uint64_t va_e; - target_ureg pa; unsigned u : 1; unsigned t : 1; unsigned d : 1; unsigned b : 1; - unsigned page_size : 4; unsigned ar_type : 3; unsigned ar_pl1 : 2; unsigned ar_pl2 : 2; - unsigned entry_valid : 1; unsigned access_id : 16; -} hppa_tlb_entry; +} HPPATLBEntry; typedef struct CPUArchState { - target_ureg iaoq_f; /* front */ - target_ureg iaoq_b; /* back, aka next instruction */ + target_ulong iaoq_f; /* front */ + target_ulong iaoq_b; /* back, aka next instruction */ - target_ureg gr[32]; + target_ulong gr[32]; uint64_t fr[32]; uint64_t sr[8]; /* stored shifted into place for gva */ - target_ureg psw; /* All psw bits except the following: */ - target_ureg psw_n; /* boolean */ - target_sreg psw_v; /* in most significant bit */ + target_ulong psw; /* All psw bits except the following: */ + target_ulong psw_n; /* boolean */ + target_long psw_v; /* in most significant bit */ /* Splitting the carry-borrow field into the MSB and "the rest", allows * for "the rest" to be deleted when it is unused, but the MSB is in use. @@ -197,8 +195,8 @@ typedef struct CPUArchState { * host has the appropriate add-with-carry insn to compute the msb). * Therefore the carry bits are stored as: cb_msb : cb & 0x11111110. */ - target_ureg psw_cb; /* in least significant bit of next nibble */ - target_ureg psw_cb_msb; /* boolean */ + target_ulong psw_cb; /* in least significant bit of next nibble */ + target_ulong psw_cb_msb; /* boolean */ uint64_t iasq_f; uint64_t iasq_b; @@ -206,24 +204,40 @@ typedef struct CPUArchState { uint32_t fr0_shadow; /* flags, c, ca/cq, rm, d, enables */ float_status fp_status; - target_ureg cr[32]; /* control registers */ - target_ureg cr_back[2]; /* back of cr17/cr18 */ - target_ureg shadow[7]; /* shadow registers */ + target_ulong cr[32]; /* control registers */ + target_ulong cr_back[2]; /* back of cr17/cr18 */ + target_ulong shadow[7]; /* shadow registers */ - /* ??? The number of entries isn't specified by the architecture. */ -#ifdef TARGET_HPPA64 -#define HPPA_BTLB_FIXED 0 /* BTLBs are not supported in 64-bit machines */ -#else -#define HPPA_BTLB_FIXED 16 -#endif -#define HPPA_BTLB_VARIABLE 0 + /* + * During unwind of a memory insn, the base register of the address. + * This is used to construct CR_IOR for pa2.0. + */ + uint32_t unwind_breg; + + /* + * ??? The number of entries isn't specified by the architecture. + * BTLBs are not supported in 64-bit machines. + */ +#define PA10_BTLB_FIXED 16 +#define PA10_BTLB_VARIABLE 0 #define HPPA_TLB_ENTRIES 256 -#define HPPA_BTLB_ENTRIES (HPPA_BTLB_FIXED + HPPA_BTLB_VARIABLE) - /* ??? Implement a unified itlb/dtlb for the moment. */ - /* ??? We should use a more intelligent data structure. */ - hppa_tlb_entry tlb[HPPA_TLB_ENTRIES]; + /* Index for round-robin tlb eviction. */ uint32_t tlb_last; + + /* + * For pa1.x, the partial initialized, still invalid tlb entry + * which has had ITLBA performed, but not yet ITLBP. + */ + HPPATLBEntry *tlb_partial; + + /* Linked list of all invalid (unused) tlb entries. */ + HPPATLBEntry *tlb_unused; + + /* Root of the search tree for all valid tlb entries. */ + IntervalTreeRoot tlb_root; + + HPPATLBEntry tlb[HPPA_TLB_ENTRIES]; } CPUHPPAState; /** @@ -243,13 +257,23 @@ struct ArchCPU { #include "exec/cpu-all.h" +static inline bool hppa_is_pa20(CPUHPPAState *env) +{ + return object_dynamic_cast(OBJECT(env_cpu(env)), TYPE_HPPA64_CPU) != NULL; +} + +static inline int HPPA_BTLB_ENTRIES(CPUHPPAState *env) +{ + return hppa_is_pa20(env) ? 0 : PA10_BTLB_FIXED + PA10_BTLB_VARIABLE; +} + static inline int cpu_mmu_index(CPUHPPAState *env, bool ifetch) { #ifdef CONFIG_USER_ONLY return MMU_USER_IDX; #else if (env->psw & (ifetch ? PSW_C : PSW_D)) { - return PRIV_TO_MMU_IDX(env->iaoq_f & 3); + return PRIV_P_TO_MMU_IDX(env->iaoq_f & 3, env->psw & PSW_P); } return MMU_PHYS_IDX; /* mmu disabled */ #endif @@ -259,23 +283,26 @@ void hppa_translate_init(void); #define CPU_RESOLVING_TYPE TYPE_HPPA_CPU -static inline target_ulong hppa_form_gva_psw(target_ureg psw, uint64_t spc, - target_ureg off) +static inline target_ulong hppa_form_gva_psw(target_ulong psw, uint64_t spc, + target_ulong off) { #ifdef CONFIG_USER_ONLY return off; #else - off &= (psw & PSW_W ? 0x3fffffffffffffffull : 0xffffffffull); + off &= psw & PSW_W ? MAKE_64BIT_MASK(0, 62) : MAKE_64BIT_MASK(0, 32); return spc | off; #endif } static inline target_ulong hppa_form_gva(CPUHPPAState *env, uint64_t spc, - target_ureg off) + target_ulong off) { return hppa_form_gva_psw(env->psw, spc, off); } +hwaddr hppa_abs_to_phys_pa2_w0(vaddr addr); +hwaddr hppa_abs_to_phys_pa2_w1(vaddr addr); + /* * Since PSW_{I,CB} will never need to be in tb->flags, reuse them. * TB_FLAG_SR_SAME indicates that SR4 through SR7 all contain the @@ -299,13 +326,12 @@ static inline void cpu_get_tb_cpu_state(CPUHPPAState *env, vaddr *pc, *cs_base = env->iaoq_b & -4; flags |= TB_FLAG_UNALIGN * !env_cpu(env)->prctl_unalign_sigbus; #else - /* ??? E, T, H, L, B, P bits need to be here, when implemented. */ - flags |= env->psw & (PSW_W | PSW_C | PSW_D); + /* ??? E, T, H, L, B bits need to be here, when implemented. */ + flags |= env->psw & (PSW_W | PSW_C | PSW_D | PSW_P); flags |= (env->iaoq_f & 3) << TB_FLAG_PRIV_SHIFT; - *pc = (env->psw & PSW_C - ? hppa_form_gva_psw(env->psw, env->iasq_f, env->iaoq_f & -4) - : env->iaoq_f & -4); + *pc = hppa_form_gva_psw(env->psw, (env->psw & PSW_C ? env->iasq_f : 0), + env->iaoq_f & -4); *cs_base = env->iasq_f; /* Insert a difference between IAOQ_B and IAOQ_F within the otherwise zero @@ -313,8 +339,8 @@ static inline void cpu_get_tb_cpu_state(CPUHPPAState *env, vaddr *pc, which is the primary case we care about -- using goto_tb within a page. Failure is indicated by a zero difference. */ if (env->iasq_f == env->iasq_b) { - target_sreg diff = env->iaoq_b - env->iaoq_f; - if (TARGET_REGISTER_BITS == 32 || diff == (int32_t)diff) { + target_long diff = env->iaoq_b - env->iaoq_f; + if (diff == (int32_t)diff) { *cs_base |= (uint32_t)diff; } } @@ -328,8 +354,8 @@ static inline void cpu_get_tb_cpu_state(CPUHPPAState *env, vaddr *pc, *pflags = flags; } -target_ureg cpu_hppa_get_psw(CPUHPPAState *env); -void cpu_hppa_put_psw(CPUHPPAState *env, target_ureg); +target_ulong cpu_hppa_get_psw(CPUHPPAState *env); +void cpu_hppa_put_psw(CPUHPPAState *env, target_ulong); void cpu_hppa_loaded_fr0(CPUHPPAState *env); #ifdef CONFIG_USER_ONLY @@ -342,6 +368,7 @@ int hppa_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); int hppa_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); void hppa_cpu_dump_state(CPUState *cs, FILE *f, int); #ifndef CONFIG_USER_ONLY +void hppa_ptlbe(CPUHPPAState *env); hwaddr hppa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr); bool hppa_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, @@ -350,7 +377,7 @@ void hppa_cpu_do_interrupt(CPUState *cpu); bool hppa_cpu_exec_interrupt(CPUState *cpu, int int_req); int hppa_get_physical_address(CPUHPPAState *env, vaddr addr, int mmu_idx, int type, hwaddr *pphys, int *pprot, - hppa_tlb_entry **tlb_entry); + HPPATLBEntry **tlb_entry); extern const MemoryRegionOps hppa_io_eir_ops; extern const VMStateDescription vmstate_hppa_cpu; void hppa_cpu_alarm_timer(void *); @@ -358,4 +385,9 @@ int hppa_artype_for_page(CPUHPPAState *env, target_ulong vaddr); #endif G_NORETURN void hppa_dynamic_excp(CPUHPPAState *env, int excp, uintptr_t ra); +#define CPU_RESOLVING_TYPE TYPE_HPPA_CPU + +#define cpu_list hppa_cpu_list +void hppa_cpu_list(void); + #endif /* HPPA_CPU_H */ |