From e5ceadff47ddec1513a56f96d9df246f62c90875 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 24 May 2021 19:04:53 +0200 Subject: accel/tcg: Keep TranslationBlock headers local to TCG MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Only the TCG accelerator uses the TranslationBlock API. Move the tb-context.h / tb-hash.h / tb-lookup.h from the global namespace to the TCG one (in accel/tcg). Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20210524170453.3791436-3-f4bug@amsat.org> Signed-off-by: Richard Henderson --- accel/tcg/tb-lookup.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 accel/tcg/tb-lookup.h (limited to 'accel/tcg/tb-lookup.h') diff --git a/accel/tcg/tb-lookup.h b/accel/tcg/tb-lookup.h new file mode 100644 index 0000000000..9c9e0079da --- /dev/null +++ b/accel/tcg/tb-lookup.h @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2017, Emilio G. Cota + * + * License: GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ +#ifndef EXEC_TB_LOOKUP_H +#define EXEC_TB_LOOKUP_H + +#ifdef NEED_CPU_H +#include "cpu.h" +#else +#include "exec/poison.h" +#endif + +#include "exec/exec-all.h" +#include "tb-hash.h" + +/* Might cause an exception, so have a longjmp destination ready */ +static inline TranslationBlock *tb_lookup(CPUState *cpu, target_ulong pc, + target_ulong cs_base, + uint32_t flags, uint32_t cflags) +{ + TranslationBlock *tb; + uint32_t hash; + + /* we should never be trying to look up an INVALID tb */ + tcg_debug_assert(!(cflags & CF_INVALID)); + + hash = tb_jmp_cache_hash_func(pc); + tb = qatomic_rcu_read(&cpu->tb_jmp_cache[hash]); + + if (likely(tb && + tb->pc == pc && + tb->cs_base == cs_base && + tb->flags == flags && + tb->trace_vcpu_dstate == *cpu->trace_dstate && + tb_cflags(tb) == cflags)) { + return tb; + } + tb = tb_htable_lookup(cpu, pc, cs_base, flags, cflags); + if (tb == NULL) { + return NULL; + } + qatomic_set(&cpu->tb_jmp_cache[hash], tb); + return tb; +} + +#endif /* EXEC_TB_LOOKUP_H */ -- cgit v1.2.3