diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2018-10-09 13:51:25 -0400 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2018-10-18 18:58:10 -0700 |
| commit | 383beda9cf32f795616c3b93f7d6154d70372d4b (patch) | |
| tree | c55952e8a0b4084281afc9d5beae140213adb9da /include/exec/cpu_ldst.h | |
| parent | 71aec3541d87d611f6efad71d45b310e515372cc (diff) | |
tcg: Add tlb_index and tlb_entry helpers
Isolate the computation of an index from an address into a
helper before we change that function.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[ cota: convert tlb_vaddr_to_host; use atomic_read on addr_write ]
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <20181009175129.17888-2-cota@braap.org>
Diffstat (limited to 'include/exec/cpu_ldst.h')
| -rw-r--r-- | include/exec/cpu_ldst.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h index 41ed0526e2..f54d91ff68 100644 --- a/include/exec/cpu_ldst.h +++ b/include/exec/cpu_ldst.h @@ -126,6 +126,20 @@ extern __thread uintptr_t helper_retaddr; /* The memory helpers for tcg-generated code need tcg_target_long etc. */ #include "tcg.h" +/* Find the TLB index corresponding to the mmu_idx + address pair. */ +static inline uintptr_t tlb_index(CPUArchState *env, uintptr_t mmu_idx, + target_ulong addr) +{ + return (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); +} + +/* Find the TLB entry corresponding to the mmu_idx + address pair. */ +static inline CPUTLBEntry *tlb_entry(CPUArchState *env, uintptr_t mmu_idx, + target_ulong addr) +{ + return &env->tlb_table[mmu_idx][tlb_index(env, mmu_idx, addr)]; +} + #ifdef MMU_MODE0_SUFFIX #define CPU_MMU_INDEX 0 #define MEMSUFFIX MMU_MODE0_SUFFIX @@ -416,8 +430,7 @@ static inline void *tlb_vaddr_to_host(CPUArchState *env, abi_ptr addr, #if defined(CONFIG_USER_ONLY) return g2h(addr); #else - int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); - CPUTLBEntry *tlbentry = &env->tlb_table[mmu_idx][index]; + CPUTLBEntry *tlbentry = tlb_entry(env, mmu_idx, addr); abi_ptr tlb_addr; uintptr_t haddr; @@ -445,7 +458,7 @@ static inline void *tlb_vaddr_to_host(CPUArchState *env, abi_ptr addr, return NULL; } - haddr = addr + env->tlb_table[mmu_idx][index].addend; + haddr = addr + tlbentry->addend; return (void *)haddr; #endif /* defined(CONFIG_USER_ONLY) */ } |