diff options
author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2007-06-22 10:16:47 +0000 |
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committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2007-06-22 10:16:47 +0000 |
commit | cb8ae31e96bbc049310225513b49457ce33c5bf0 (patch) | |
tree | 5e016d1536d3a3d4732e39014ba3bf892bcf1dbc /target/linux/adm5120-2.6/patches/008-adm5120_hardware_swab.patch | |
parent | 45fb3b5d60c4f213cd527c983ee9b7197f05a576 (diff) |
[adm5120] add initial support for hardware accelerated byte swapping
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7708 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/adm5120-2.6/patches/008-adm5120_hardware_swab.patch')
-rw-r--r-- | target/linux/adm5120-2.6/patches/008-adm5120_hardware_swab.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/target/linux/adm5120-2.6/patches/008-adm5120_hardware_swab.patch b/target/linux/adm5120-2.6/patches/008-adm5120_hardware_swab.patch new file mode 100644 index 000000000..a71dba2d0 --- /dev/null +++ b/target/linux/adm5120-2.6/patches/008-adm5120_hardware_swab.patch @@ -0,0 +1,38 @@ +--- linux-2.6.19.2/include/asm-mips/byteorder.h 2007-01-10 20:10:37.000000000 +0100 ++++ linux-2.6.19.2.new/include/asm-mips/byteorder.h 2007-05-16 21:14:47.000000000 +0200 +@@ -58,6 +58,35 @@ + + #endif /* CONFIG_CPU_MIPSR2 */ + ++#ifdef CONFIG_ADM5120_HARDWARE_SWAB ++ ++static __inline__ __attribute_const__ __u16 ___adm5120__swab16(__u16 x) ++{ ++ __asm__ ( ++ " sw %2, 0xC8(%1) \n" ++ " lhu %0, 0xCC(%1) \n" ++ : "=r" (x) ++ : "r" (0xB2000000), "r" (x)); ++ ++ return x; ++} ++ ++static __inline__ __attribute_const__ __u32 ___adm5120__swab32(__u32 x) ++{ ++ __asm__ ( ++ " sw %2, 0xC8(%1) \n" ++ " lw %0, 0xCC(%1) \n" ++ : "=r" (x) ++ : "r" (0xB2000000), "r" (x)); ++ ++ return x; ++} ++ ++#define __arch__swab16(x) ___adm5120__swab16(x) ++#define __arch__swab32(x) ___adm5120__swab32(x) ++ ++#endif /* CONFIG_ADM5120_HARDWARE_SWAB */ ++ + #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) + # define __BYTEORDER_HAS_U64__ + # define __SWAB_64_THRU_32__ |