diff options
| author | Sergey Fedorov <serge.fdrv@gmail.com> | 2016-04-09 01:00:23 +0300 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-05-12 14:06:42 -1000 |
| commit | 90aa39a1cc4837360889f0e033ca25cc82100308 (patch) | |
| tree | b8f857f456fec4ecd5b5931f41c7b17b52a353eb /target-unicore32 | |
| parent | 5b053a4a28278bca606eeff7d1c0730df1b047e9 (diff) | |
tcg: Allow goto_tb to any target PC in user mode
In user mode, there's only a static address translation, TBs are always
invalidated properly and direct jumps are reset when mapping change.
Thus the destination address is always valid for direct jumps and
there's no need to restrict it to the pages the TB resides in.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Blue Swirl <blauwirbel@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-unicore32')
| -rw-r--r-- | target-unicore32/translate.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/target-unicore32/translate.c b/target-unicore32/translate.c index 39af3af05f..307f7b2059 100644 --- a/target-unicore32/translate.c +++ b/target-unicore32/translate.c @@ -1089,15 +1089,21 @@ static void disas_ucf64_insn(CPUUniCore32State *env, DisasContext *s, uint32_t i } } -static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest) +static inline bool use_goto_tb(DisasContext *s, uint32_t dest) { - TranslationBlock *tb; +#ifndef CONFIG_USER_ONLY + return (s->tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK); +#else + return true; +#endif +} - tb = s->tb; - if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) { +static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest) +{ + if (use_goto_tb(s, dest)) { tcg_gen_goto_tb(n); gen_set_pc_im(dest); - tcg_gen_exit_tb((uintptr_t)tb + n); + tcg_gen_exit_tb((uintptr_t)s->tb + n); } else { gen_set_pc_im(dest); tcg_gen_exit_tb(0); |