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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-03-09 23:30:38 -0600 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-06-11 09:27:08 -0700 |
| commit | 26a75d12d33ff80ee797ca32373f6333da4f194f (patch) | |
| tree | 3cdd0da4f192322ecf22d2877ef5d8afa3296175 /tcg/region.c | |
| parent | 0e2d61cf29833f8984e7421a74eb0a4f921f92b5 (diff) | |
| download | qemu-26a75d12d33ff80ee797ca32373f6333da4f194f.zip qemu-26a75d12d33ff80ee797ca32373f6333da4f194f.tar.gz qemu-26a75d12d33ff80ee797ca32373f6333da4f194f.tar.bz2 | |
tcg: Move MAX_CODE_GEN_BUFFER_SIZE to tcg-target.h
Remove the ifdef ladder and move each define into the
appropriate header file.
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/region.c')
| -rw-r--r-- | tcg/region.c | 33 |
1 files changed, 5 insertions, 28 deletions
diff --git a/tcg/region.c b/tcg/region.c index 57069a3..13087aa 100644 --- a/tcg/region.c +++ b/tcg/region.c @@ -401,37 +401,14 @@ static size_t tcg_n_regions(unsigned max_cpus) /* * Minimum size of the code gen buffer. This number is randomly chosen, * but not so small that we can't have a fair number of TB's live. + * + * Maximum size, MAX_CODE_GEN_BUFFER_SIZE, is defined in tcg-target.h. + * Unless otherwise indicated, this is constrained by the range of + * direct branches on the host cpu, as used by the TCG implementation + * of goto_tb. */ #define MIN_CODE_GEN_BUFFER_SIZE (1 * MiB) -/* - * Maximum size of the code gen buffer we'd like to use. Unless otherwise - * indicated, this is constrained by the range of direct branches on the - * host cpu, as used by the TCG implementation of goto_tb. - */ -#if defined(__x86_64__) -# define MAX_CODE_GEN_BUFFER_SIZE (2 * GiB) -#elif defined(__sparc__) -# define MAX_CODE_GEN_BUFFER_SIZE (2 * GiB) -#elif defined(__powerpc64__) -# define MAX_CODE_GEN_BUFFER_SIZE (2 * GiB) -#elif defined(__powerpc__) -# define MAX_CODE_GEN_BUFFER_SIZE (32 * MiB) -#elif defined(__aarch64__) -# define MAX_CODE_GEN_BUFFER_SIZE (2 * GiB) -#elif defined(__s390x__) - /* We have a +- 4GB range on the branches; leave some slop. */ -# define MAX_CODE_GEN_BUFFER_SIZE (3 * GiB) -#elif defined(__mips__) - /* - * We have a 256MB branch region, but leave room to make sure the - * main executable is also within that region. - */ -# define MAX_CODE_GEN_BUFFER_SIZE (128 * MiB) -#else -# define MAX_CODE_GEN_BUFFER_SIZE ((size_t)-1) -#endif - #if TCG_TARGET_REG_BITS == 32 #define DEFAULT_CODE_GEN_BUFFER_SIZE_1 (32 * MiB) #ifdef CONFIG_USER_ONLY |