diff options
Diffstat (limited to 'target-alpha/op_helper.c')
| -rw-r--r-- | target-alpha/op_helper.c | 147 |
1 files changed, 34 insertions, 113 deletions
diff --git a/target-alpha/op_helper.c b/target-alpha/op_helper.c index 4ccb10b0f4..a90c7a6490 100644 --- a/target-alpha/op_helper.c +++ b/target-alpha/op_helper.c @@ -1188,150 +1188,71 @@ void helper_mtpr (int iprn, uint64_t val) { cpu_alpha_mtpr(env, iprn, val, NULL); } - -void helper_set_alt_mode (void) -{ - env->saved_mode = env->ps & 0xC; - env->ps = (env->ps & ~0xC) | (env->ipr[IPR_ALT_MODE] & 0xC); -} - -void helper_restore_mode (void) -{ - env->ps = (env->ps & ~0xC) | env->saved_mode; -} - #endif /*****************************************************************************/ /* Softmmu support */ #if !defined (CONFIG_USER_ONLY) - -/* XXX: the two following helpers are pure hacks. - * Hopefully, we emulate the PALcode, then we should never see - * HW_LD / HW_ST instructions. - */ -uint64_t helper_ld_virt_to_phys (uint64_t virtaddr) -{ - uint64_t tlb_addr, physaddr; - int index, mmu_idx; - void *retaddr; - - mmu_idx = cpu_mmu_index(env); - index = (virtaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); - redo: - tlb_addr = env->tlb_table[mmu_idx][index].addr_read; - if ((virtaddr & TARGET_PAGE_MASK) == - (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { - physaddr = virtaddr + env->tlb_table[mmu_idx][index].addend; - } else { - /* the page is not in the TLB : fill it */ - retaddr = GETPC(); - tlb_fill(virtaddr, 0, mmu_idx, retaddr); - goto redo; - } - return physaddr; -} - -uint64_t helper_st_virt_to_phys (uint64_t virtaddr) -{ - uint64_t tlb_addr, physaddr; - int index, mmu_idx; - void *retaddr; - - mmu_idx = cpu_mmu_index(env); - index = (virtaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); - redo: - tlb_addr = env->tlb_table[mmu_idx][index].addr_write; - if ((virtaddr & TARGET_PAGE_MASK) == - (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { - physaddr = virtaddr + env->tlb_table[mmu_idx][index].addend; - } else { - /* the page is not in the TLB : fill it */ - retaddr = GETPC(); - tlb_fill(virtaddr, 1, mmu_idx, retaddr); - goto redo; - } - return physaddr; -} - -void helper_ldl_raw(uint64_t t0, uint64_t t1) +uint64_t helper_ldl_phys(uint64_t p) { - ldl_raw(t1, t0); + return (int32_t)ldl_phys(p); } -void helper_ldq_raw(uint64_t t0, uint64_t t1) +uint64_t helper_ldq_phys(uint64_t p) { - ldq_raw(t1, t0); + return ldq_phys(p); } -void helper_ldl_l_raw(uint64_t t0, uint64_t t1) +uint64_t helper_ldl_l_phys(uint64_t p) { - env->lock = t1; - ldl_raw(t1, t0); + env->lock_addr = p; + return env->lock_value = (int32_t)ldl_phys(p); } -void helper_ldq_l_raw(uint64_t t0, uint64_t t1) +uint64_t helper_ldq_l_phys(uint64_t p) { - env->lock = t1; - ldl_raw(t1, t0); + env->lock_addr = p; + return env->lock_value = ldl_phys(p); } -void helper_ldl_kernel(uint64_t t0, uint64_t t1) +void helper_stl_phys(uint64_t p, uint64_t v) { - ldl_kernel(t1, t0); + stl_phys(p, v); } -void helper_ldq_kernel(uint64_t t0, uint64_t t1) +void helper_stq_phys(uint64_t p, uint64_t v) { - ldq_kernel(t1, t0); + stq_phys(p, v); } -void helper_ldl_data(uint64_t t0, uint64_t t1) +uint64_t helper_stl_c_phys(uint64_t p, uint64_t v) { - ldl_data(t1, t0); -} + uint64_t ret = 0; -void helper_ldq_data(uint64_t t0, uint64_t t1) -{ - ldq_data(t1, t0); -} - -void helper_stl_raw(uint64_t t0, uint64_t t1) -{ - stl_raw(t1, t0); -} - -void helper_stq_raw(uint64_t t0, uint64_t t1) -{ - stq_raw(t1, t0); -} - -uint64_t helper_stl_c_raw(uint64_t t0, uint64_t t1) -{ - uint64_t ret; - - if (t1 == env->lock) { - stl_raw(t1, t0); - ret = 0; - } else - ret = 1; - - env->lock = 1; + if (p == env->lock_addr) { + int32_t old = ldl_phys(p); + if (old == (int32_t)env->lock_value) { + stl_phys(p, v); + ret = 1; + } + } + env->lock_addr = -1; return ret; } -uint64_t helper_stq_c_raw(uint64_t t0, uint64_t t1) +uint64_t helper_stq_c_phys(uint64_t p, uint64_t v) { - uint64_t ret; + uint64_t ret = 0; - if (t1 == env->lock) { - stq_raw(t1, t0); - ret = 0; - } else - ret = 1; - - env->lock = 1; + if (p == env->lock_addr) { + uint64_t old = ldq_phys(p); + if (old == env->lock_value) { + stq_phys(p, v); + ret = 1; + } + } + env->lock_addr = -1; return ret; } |