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| author | David Daney <david.daney@cavium.com> | 2013-05-24 20:54:10 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2013-07-01 15:10:57 +0200 |
| commit | 3ddc14add5e6341cf8ef4058c34c67ba7fd15317 (patch) | |
| tree | 2b155a83010189ef5e7720466cb78c1a00423a23 /arch/mips/include | |
| parent | c214c03512b67e56dea3f4471705f8caae49553a (diff) | |
| download | linux-stable-3ddc14add5e6341cf8ef4058c34c67ba7fd15317.tar.gz linux-stable-3ddc14add5e6341cf8ef4058c34c67ba7fd15317.tar.bz2 linux-stable-3ddc14add5e6341cf8ef4058c34c67ba7fd15317.zip | |
MIPS: Only set cpu_has_mmips if SYS_SUPPORTS_MICROMIPS
As Jonas Gorske said in his patch:
Disable cpu_has_mmips for everything but SEAD3 and MALTA. Most of
these platforms are from before the micromips introduction, so they
are very unlikely to implement it.
Reduces an -Os compiled, uncompressed kernel image by 8KiB for
BCM63XX.
This patch taks a different approach than his, we gate the runtime
test for microMIPS by the config symbol SYS_SUPPORTS_MICROMIPS.
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Acked-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5327/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include')
| -rw-r--r-- | arch/mips/include/asm/cpu-features.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 9609812bc8f2..8e0c125c59a1 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -109,7 +109,11 @@ #define cpu_has_rixi (cpu_data[0].options & MIPS_CPU_RIXI) #endif #ifndef cpu_has_mmips -#define cpu_has_mmips (cpu_data[0].options & MIPS_CPU_MICROMIPS) +# ifdef CONFIG_SYS_SUPPORTS_MICROMIPS +# define cpu_has_mmips (cpu_data[0].options & MIPS_CPU_MICROMIPS) +# else +# define cpu_has_mmips 0 +# endif #endif #ifndef cpu_has_vtag_icache #define cpu_has_vtag_icache (cpu_data[0].icache.flags & MIPS_CACHE_VTAG) |