diff options
| author | Emilio G. Cota <cota@braap.org> | 2017-07-11 14:29:37 -0400 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2017-10-24 13:53:41 -0700 |
| commit | 4e2ca83e71b51577b06b1468e836556912bd5b6e (patch) | |
| tree | b9fce2b5f36d6f171f8c80e932e25f9a25f1cd3e /include/exec/exec-all.h | |
| parent | e89b28a63501c0ad6d2501fe851d0c5202055e70 (diff) | |
tcg: define CF_PARALLEL and use it for TB hashing along with CF_COUNT_MASK
This will enable us to decouple code translation from the value
of parallel_cpus at any given time. It will also help us minimize
TB flushes when generating code via EXCP_ATOMIC.
Note that the declaration of parallel_cpus is brought to exec-all.h
to be able to define there the "curr_cflags" inline.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'include/exec/exec-all.h')
| -rw-r--r-- | include/exec/exec-all.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index 53f1835c43..352abc7450 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -325,6 +325,9 @@ struct TranslationBlock { #define CF_USE_ICOUNT 0x20000 #define CF_IGNORE_ICOUNT 0x40000 /* Do not generate icount code */ #define CF_INVALID 0x80000 /* TB is stale. Setters must acquire tb_lock */ +#define CF_PARALLEL 0x100000 /* Generate code for a parallel context */ +/* cflags' mask for hashing/comparison */ +#define CF_HASH_MASK (CF_PARALLEL) /* Per-vCPU dynamic tracing state used to generate this TB */ uint32_t trace_vcpu_dstate; @@ -365,11 +368,26 @@ struct TranslationBlock { uintptr_t jmp_list_first; }; +extern bool parallel_cpus; + +/* Hide the atomic_read to make code a little easier on the eyes */ +static inline uint32_t tb_cflags(const TranslationBlock *tb) +{ + return atomic_read(&tb->cflags); +} + +/* current cflags for hashing/comparison */ +static inline uint32_t curr_cflags(void) +{ + return parallel_cpus ? CF_PARALLEL : 0; +} + void tb_free(TranslationBlock *tb); void tb_flush(CPUState *cpu); void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr); TranslationBlock *tb_htable_lookup(CPUState *cpu, target_ulong pc, - target_ulong cs_base, uint32_t flags); + target_ulong cs_base, uint32_t flags, + uint32_t cf_mask); void tb_set_jmp_target(TranslationBlock *tb, int n, uintptr_t addr); /* GETPC is the true target of the return instruction that we'll execute. */ |