From 479eb12108b66265a8149b0fa90e16900bc217af Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Thu, 24 Apr 2014 08:25:03 -0700 Subject: tcg-mips: Layout executable and code_gen_buffer Choosing good addresses for them means we can use JAL for helper calls. Reviewed-by: Paolo Bonzini Signed-off-by: Richard Henderson --- translate-all.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'translate-all.c') diff --git a/translate-all.c b/translate-all.c index 5549a85..c631694 100644 --- a/translate-all.c +++ b/translate-all.c @@ -475,6 +475,10 @@ static inline PageDesc *page_find(tb_page_addr_t index) #elif defined(__s390x__) /* We have a +- 4GB range on the branches; leave some slop. */ # define MAX_CODE_GEN_BUFFER_SIZE (3ul * 1024 * 1024 * 1024) +#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 (128ul * 1024 * 1024) #else # define MAX_CODE_GEN_BUFFER_SIZE ((size_t)-1) #endif @@ -545,6 +549,15 @@ static inline void *alloc_code_gen_buffer(void) start = 0x40000000ul; # elif defined(__s390x__) start = 0x90000000ul; +# elif defined(__mips__) + /* ??? We ought to more explicitly manage layout for softmmu too. */ +# ifdef CONFIG_USER_ONLY + start = 0x68000000ul; +# elif _MIPS_SIM == _ABI64 + start = 0x128000000ul; +# else + start = 0x08000000ul; +# endif # endif buf = mmap((void *)start, tcg_ctx.code_gen_buffer_size, -- cgit v1.1