mirror of
https://github.com/yuzu-emu/unicorn.git
synced 2024-10-20 23:48:17 +02:00
ee1ddf4a92
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. Backports commit 4e2ca83e71b51577b06b1468e836556912bd5b6e from qemu
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/*
|
|
* internal execution defines for qemu
|
|
*
|
|
* Copyright (c) 2003 Fabrice Bellard
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef EXEC_TB_HASH_H
|
|
#define EXEC_TB_HASH_H
|
|
|
|
#include "exec/exec-all.h"
|
|
#include "qemu/xxhash.h"
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
|
|
/* Only the bottom TB_JMP_PAGE_BITS of the jump cache hash bits vary for
|
|
addresses on the same page. The top bits are the same. This allows
|
|
TLB invalidation to quickly clear a subset of the hash table. */
|
|
#define TB_JMP_PAGE_BITS (TB_JMP_CACHE_BITS / 2)
|
|
#define TB_JMP_PAGE_SIZE (1 << TB_JMP_PAGE_BITS)
|
|
#define TB_JMP_ADDR_MASK (TB_JMP_PAGE_SIZE - 1)
|
|
#define TB_JMP_PAGE_MASK (TB_JMP_CACHE_SIZE - TB_JMP_PAGE_SIZE)
|
|
|
|
static inline unsigned int tb_jmp_cache_hash_page(target_ulong pc)
|
|
{
|
|
target_ulong tmp;
|
|
tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS));
|
|
return (tmp >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)) & TB_JMP_PAGE_MASK;
|
|
}
|
|
|
|
#else
|
|
|
|
/* In user-mode we can get better hashing because we do not have a TLB */
|
|
static inline unsigned int tb_jmp_cache_hash_func(target_ulong pc)
|
|
{
|
|
return (pc ^ (pc >> TB_JMP_CACHE_BITS)) & (TB_JMP_CACHE_SIZE - 1);
|
|
}
|
|
|
|
#endif /* CONFIG_SOFTMMU */
|
|
|
|
static inline unsigned int tb_jmp_cache_hash_func(target_ulong pc)
|
|
{
|
|
target_ulong tmp;
|
|
tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS));
|
|
return (((tmp >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)) & TB_JMP_PAGE_MASK)
|
|
| (tmp & TB_JMP_ADDR_MASK));
|
|
}
|
|
|
|
static inline
|
|
uint32_t tb_hash_func(tb_page_addr_t phys_pc, target_ulong pc, uint32_t flags,
|
|
uint32_t cf_mask)
|
|
{
|
|
return qemu_xxhash7(phys_pc, pc, flags, cf_mask, 0) & (CODE_GEN_PHYS_HASH_SIZE - 1);
|
|
}
|
|
|
|
#endif
|