diff options
Diffstat (limited to 'include/exec/exec-all.h')
| -rw-r--r-- | include/exec/exec-all.h | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index a3719b7f0d..a63fd6015e 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -62,24 +62,15 @@ typedef struct TranslationBlock TranslationBlock; #define OPC_BUF_SIZE 640 #define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR) -/* Maximum size a TCG op can expand to. This is complicated because a - single op may require several host instructions and register reloads. - For now take a wild guess at 192 bytes, which should allow at least - a couple of fixup instructions per argument. */ -#define TCG_MAX_OP_SIZE 192 - #define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * MAX_OPC_PARAM) #include "qemu/log.h" void gen_intermediate_code(CPUArchState *env, struct TranslationBlock *tb); -void gen_intermediate_code_pc(CPUArchState *env, struct TranslationBlock *tb); void restore_state_to_opc(CPUArchState *env, struct TranslationBlock *tb, - int pc_pos); + target_ulong *data); void cpu_gen_init(void); -int cpu_gen_code(CPUArchState *env, struct TranslationBlock *tb, - int *gen_code_size_ptr); bool cpu_restore_state(CPUState *cpu, uintptr_t searched_pc); void page_size_init(void); @@ -170,13 +161,14 @@ static inline void tlb_flush_by_mmuidx(CPUState *cpu, ...) #define CODE_GEN_PHYS_HASH_BITS 15 #define CODE_GEN_PHYS_HASH_SIZE (1 << CODE_GEN_PHYS_HASH_BITS) -/* estimated block size for TB allocation */ -/* XXX: use a per code average code fragment size and modulate it - according to the host CPU */ +/* Estimated block size for TB allocation. */ +/* ??? The following is based on a 2015 survey of x86_64 host output. + Better would seem to be some sort of dynamically sized TB array, + adapting to the block sizes actually being produced. */ #if defined(CONFIG_SOFTMMU) -#define CODE_GEN_AVG_BLOCK_SIZE 128 +#define CODE_GEN_AVG_BLOCK_SIZE 400 #else -#define CODE_GEN_AVG_BLOCK_SIZE 64 +#define CODE_GEN_AVG_BLOCK_SIZE 150 #endif #if defined(__arm__) || defined(_ARCH_PPC) \ @@ -201,6 +193,7 @@ struct TranslationBlock { #define CF_USE_ICOUNT 0x20000 void *tc_ptr; /* pointer to the translated code */ + uint8_t *tc_search; /* pointer to search data */ /* next matching tb for physical address. */ struct TranslationBlock *phys_hash_next; /* original tb when cflags has CF_NOCACHE */ |