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| author |   Paul Mundt <lethal@linux-sh.org> | 2006-11-20 14:30:26 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-12-06 10:45:37 +0900 |
| commit | 21440cf04a64cd1b1209c12a6e1a3afba2a28709 (patch) | |
| tree | 9af7a89c4c711b8433b3b1e23e2ba0c95f82fbf7 /include/asm-sh/elf.h | |
| parent | sh: Hook SH7785 in to the build system. (diff) | |
| download | linux-dev-21440cf04a64cd1b1209c12a6e1a3afba2a28709.tar.xz linux-dev-21440cf04a64cd1b1209c12a6e1a3afba2a28709.zip | |
sh: Preliminary support for SH-X2 MMU.
This adds some preliminary support for the SH-X2 MMU, used by
newer SH-4A parts (particularly SH7785).
This MMU implements a 'compat' mode with SH-X MMUs and an
'extended' mode for SH-X2 extended features. Extended features
include additional page sizes (8kB, 4MB, 64MB), as well as the
addition of page execute permissions.
The extended mode attributes are placed in a second data array,
which requires us to switch to 64-bit PTEs when in X2 mode.
With the addition of the exec perms, we also overhaul the mmap
prots somewhat, now that it's possible to handle them more
intelligently.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/elf.h')
| -rw-r--r-- | include/asm-sh/elf.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-sh/elf.h b/include/asm-sh/elf.h index fc050fd7645e..43ca244564b1 100644 --- a/include/asm-sh/elf.h +++ b/include/asm-sh/elf.h @@ -74,7 +74,7 @@ typedef struct user_fpu_struct elf_fpregset_t; #define ELF_ARCH EM_SH #define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 4096 +#define ELF_EXEC_PAGESIZE PAGE_SIZE /* This is the location that an ET_DYN program is loaded if exec'ed. Typical use of this is to invoke "./ld.so someprog" to test out a new version of |