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accel/tcg: drop the use of CF_HASH_MASK and rename params

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We don't really deal in cf_mask most of the time. The one time it's
relevant is when we want to remove an invalidated TB from the QHT
lookup. Everywhere else we should be looking up things without
CF_INVALID set.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210224165811.11567-4-alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Alex Bennée 2021-02-24 16:58:09 +00:00 • committed by Richard Henderson
parent c0ae396a81
commit bf253ac606
5 changed files with 21 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

16
accel/tcg/cpu-exec.c
View file

@ -307,7 +307,7 @@ struct tb_desc {
CPUArchState *env;
tb_page_addr_t phys_page1;
uint32_t flags;
uint32_t cf_mask;
uint32_t cflags;
uint32_t trace_vcpu_dstate;
};
@ -321,7 +321,7 @@ static bool tb_lookup_cmp(const void *p, const void *d)
tb->cs_base == desc->cs_base &&
tb->flags == desc->flags &&
tb->trace_vcpu_dstate == desc->trace_vcpu_dstate &&
(tb_cflags(tb) & (CF_HASH_MASK | CF_INVALID)) == desc->cf_mask) {
tb_cflags(tb) == desc->cflags) {
/* check next page if needed */
if (tb->page_addr[1] == -1) {
return true;
@ -341,7 +341,7 @@ static bool tb_lookup_cmp(const void *p, const void *d)
TranslationBlock *tb_htable_lookup(CPUState *cpu, target_ulong pc,
target_ulong cs_base, uint32_t flags,
uint32_t cf_mask)
uint32_t cflags)
{
tb_page_addr_t phys_pc;
struct tb_desc desc;
@ -350,7 +350,7 @@ TranslationBlock *tb_htable_lookup(CPUState *cpu, target_ulong pc,
desc.env = (CPUArchState *)cpu->env_ptr;
desc.cs_base = cs_base;
desc.flags = flags;
desc.cf_mask = cf_mask;
desc.cflags = cflags;
desc.trace_vcpu_dstate = *cpu->trace_dstate;
desc.pc = pc;
phys_pc = get_page_addr_code(desc.env, pc);
@ -358,7 +358,7 @@ TranslationBlock *tb_htable_lookup(CPUState *cpu, target_ulong pc,
return NULL;
}
desc.phys_page1 = phys_pc & TARGET_PAGE_MASK;
h = tb_hash_func(phys_pc, pc, flags, cf_mask, *cpu->trace_dstate);
h = tb_hash_func(phys_pc, pc, flags, cflags, *cpu->trace_dstate);
return qht_lookup_custom(&tb_ctx.htable, &desc, h, tb_lookup_cmp);
}
@ -418,7 +418,7 @@ static inline void tb_add_jump(TranslationBlock *tb, int n,
static inline TranslationBlock *tb_find(CPUState *cpu,
TranslationBlock *last_tb,
int tb_exit, uint32_t cf_mask)
int tb_exit, uint32_t cflags)
{
CPUArchState *env = (CPUArchState *)cpu->env_ptr;
TranslationBlock *tb;
@ -427,10 +427,10 @@ static inline TranslationBlock *tb_find(CPUState *cpu,
cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags);
tb = tb_lookup(cpu, pc, cs_base, flags, cf_mask);
tb = tb_lookup(cpu, pc, cs_base, flags, cflags);
if (tb == NULL) {
mmap_lock();
tb = tb_gen_code(cpu, pc, cs_base, flags, cf_mask);
tb = tb_gen_code(cpu, pc, cs_base, flags, cflags);
mmap_unlock();
/* We add the TB in the virtual pc hash table for the fast lookup */
qatomic_set(&cpu->tb_jmp_cache[tb_jmp_cache_hash_func(pc)], tb);