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accel/tcg: remove CF_NOCACHE and special cases

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Now we no longer generate CF_NOCACHE blocks we can remove a bunch of
the special case handling for them. While we are at it we can remove
the unused tb->orig_tb field and save a few bytes on the TB structure.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210213130325.14781-20-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée 2021-02-13 13:03:21 +00:00
parent 873d64ac30
commit c4afb3456c
2 changed files with 15 additions and 39 deletions
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3
include/exec/exec-all.h
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@ -454,7 +454,6 @@ struct TranslationBlock {
uint32_t cflags; /* compile flags */
#define CF_COUNT_MASK 0x00007fff
#define CF_LAST_IO 0x00008000 /* Last insn may be an IO access. */
#define CF_NOCACHE 0x00010000 /* To be freed after execution */
#define CF_USE_ICOUNT 0x00020000
#define CF_INVALID 0x00040000 /* TB is stale. Set with @jmp_lock held */
#define CF_PARALLEL 0x00080000 /* Generate code for a parallel context */
@ -469,8 +468,6 @@ struct TranslationBlock {
struct tb_tc tc;
/* original tb when cflags has CF_NOCACHE */
struct TranslationBlock *orig_tb;
/* first and second physical page containing code. The lower bit
of the pointer tells the index in page_next[].
The list is protected by the TB's page('s) lock(s) */