diff options
Diffstat (limited to 'arch/um/kernel/tt/mem.c')
| -rw-r--r-- | arch/um/kernel/tt/mem.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/um/kernel/tt/mem.c b/arch/um/kernel/tt/mem.c new file mode 100644 index 00000000000..74346a04a2b --- /dev/null +++ b/arch/um/kernel/tt/mem.c @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#include "linux/stddef.h" +#include "linux/config.h" +#include "linux/mm.h" +#include "asm/uaccess.h" +#include "mem_user.h" +#include "kern_util.h" +#include "user_util.h" +#include "kern.h" +#include "tt.h" + +void before_mem_tt(unsigned long brk_start) +{ + if(debug) + remap_data(UML_ROUND_DOWN(&_stext), UML_ROUND_UP(&_etext), 1); + remap_data(UML_ROUND_DOWN(&_sdata), UML_ROUND_UP(&_edata), 1); + remap_data(UML_ROUND_DOWN(&__bss_start), UML_ROUND_UP(&_end), 1); +} + +#ifdef CONFIG_HOST_2G_2G +#define TOP 0x80000000 +#else +#define TOP 0xc0000000 +#endif + +#define SIZE ((CONFIG_NEST_LEVEL + CONFIG_KERNEL_HALF_GIGS) * 0x20000000) +#define START (TOP - SIZE) + +unsigned long set_task_sizes_tt(int arg, unsigned long *host_size_out, + unsigned long *task_size_out) +{ + /* Round up to the nearest 4M */ + *host_size_out = ROUND_4M((unsigned long) &arg); + *task_size_out = START; + return(START); +} + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * Emacs will notice this stuff at the end of the file and automatically + * adjust the settings for this buffer only. This must remain at the end + * of the file. + * --------------------------------------------------------------------------- + * Local variables: + * c-file-style: "linux" + * End: + */ |