diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2018-06-29 17:21:21 +0100 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2018-07-02 08:02:20 -0700 |
| commit | 334692bce7f0653a93b8d84ecde8c847b08dec38 (patch) | |
| tree | 0bb2be80e0d9e50e9afc5b4545739497881898a3 /include/exec/cpu-all.h | |
| parent | a688e73ba8c2e3b6f3e5e683c4a9c37d2ddc8984 (diff) | |
tcg: Define and use new tlb_hit() and tlb_hit_page() functions
The condition to check whether an address has hit against a particular
TLB entry is not completely trivial. We do this in various places, and
in fact in one place (get_page_addr_code()) we have got the condition
wrong. Abstract it out into new tlb_hit() and tlb_hit_page() inline
functions (one for a known-page-aligned address and one for an
arbitrary address), and use them in all the places where we had the
condition correct.
This is a no-behaviour-change patch; we leave fixing the buggy
code in get_page_addr_code() to a subsequent patch.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180629162122.19376-2-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'include/exec/cpu-all.h')
| -rw-r--r-- | include/exec/cpu-all.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h index 7338f57062..117d2fbbca 100644 --- a/include/exec/cpu-all.h +++ b/include/exec/cpu-all.h @@ -339,6 +339,29 @@ CPUArchState *cpu_copy(CPUArchState *env); #define TLB_FLAGS_MASK (TLB_INVALID_MASK | TLB_NOTDIRTY | TLB_MMIO \ | TLB_RECHECK) +/** + * tlb_hit_page: return true if page aligned @addr is a hit against the + * TLB entry @tlb_addr + * + * @addr: virtual address to test (must be page aligned) + * @tlb_addr: TLB entry address (a CPUTLBEntry addr_read/write/code value) + */ +static inline bool tlb_hit_page(target_ulong tlb_addr, target_ulong addr) +{ + return addr == (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK)); +} + +/** + * tlb_hit: return true if @addr is a hit against the TLB entry @tlb_addr + * + * @addr: virtual address to test (need not be page aligned) + * @tlb_addr: TLB entry address (a CPUTLBEntry addr_read/write/code value) + */ +static inline bool tlb_hit(target_ulong tlb_addr, target_ulong addr) +{ + return tlb_hit_page(tlb_addr, addr & TARGET_PAGE_MASK); +} + void dump_exec_info(FILE *f, fprintf_function cpu_fprintf); void dump_opcount_info(FILE *f, fprintf_function cpu_fprintf); #endif /* !CONFIG_USER_ONLY */ |