From 1da8de39a39c55560cb4bf0cea94d598fea035cd Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 12 Dec 2020 10:38:21 -0600 Subject: util: Enhance flush_icache_range with separate data pointer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We are shortly going to have a split rw/rx jit buffer. Depending on the host, we need to flush the dcache at the rw data pointer and flush the icache at the rx code pointer. For now, the two passed pointers are identical, so there is no effective change in behaviour. Reviewed-by: Joelle van Dyne Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- tcg/tcg.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'tcg/tcg.c') diff --git a/tcg/tcg.c b/tcg/tcg.c index 9bdc450196..759a41d848 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1079,7 +1079,8 @@ void tcg_prologue_init(TCGContext *s) buf1 = s->code_ptr; #ifndef CONFIG_TCG_INTERPRETER - flush_icache_range((uintptr_t)buf0, (uintptr_t)buf1); + flush_idcache_range((uintptr_t)buf0, (uintptr_t)buf0, + tcg_ptr_byte_diff(buf1, buf0)); #endif /* Deduct the prologue from the buffer. */ @@ -4328,7 +4329,8 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb) #ifndef CONFIG_TCG_INTERPRETER /* flush instruction cache */ - flush_icache_range((uintptr_t)s->code_buf, (uintptr_t)s->code_ptr); + flush_idcache_range((uintptr_t)s->code_buf, (uintptr_t)s->code_buf, + tcg_ptr_byte_diff(s->code_ptr, s->code_buf)); #endif return tcg_current_code_size(s); -- cgit v1.2.3