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tcg: Move MAX_CODE_GEN_BUFFER_SIZE to tcg-target.h

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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>
This commit is contained in:
Richard Henderson 2021-03-09 23:30:38 -06:00
parent 0e2d61cf29
commit 26a75d12d3
10 changed files with 23 additions and 28 deletions
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33
tcg/region.c
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@ -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