diff options
| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2005-11-07 22:12:08 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-11-07 22:12:08 +0100 |
| commit | bedf142b8bba4331ed93161292a4ce4f8cde7308 (patch) | |
| tree | cde053618935762e37badb509d191ac006ae197a /arch/arm/nwfpe/fpa11_cpdt.c | |
| parent | [ARM] 3117/1: nwfpe kernel memory info leak (diff) | |
| download | linux-bedf142b8bba4331ed93161292a4ce4f8cde7308.tar.xz linux-bedf142b8bba4331ed93161292a4ce4f8cde7308.zip | |
[ARM] 3118/1: fix and reenable nwfpe extended precision emulation for big-endian
Patch from Lennert Buytenhek
nwfpe extended precision emulation used to be broken on big-endian
and was therefore disabled. This patch fixes nwfpe so that it copies
extended precision floats to/from userspace in the proper word order
(similar to patch #2046, see the description of that patch for an
explanation) and reenables the Kconfig option.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/nwfpe/fpa11_cpdt.c')
| -rw-r--r-- | arch/arm/nwfpe/fpa11_cpdt.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/nwfpe/fpa11_cpdt.c b/arch/arm/nwfpe/fpa11_cpdt.c index b0db5cbcc3b1..32859fa8dcfc 100644 --- a/arch/arm/nwfpe/fpa11_cpdt.c +++ b/arch/arm/nwfpe/fpa11_cpdt.c @@ -59,8 +59,13 @@ static inline void loadExtended(const unsigned int Fn, const unsigned int __user p = (unsigned int *) &fpa11->fpreg[Fn].fExtended; fpa11->fType[Fn] = typeExtended; get_user(p[0], &pMem[0]); /* sign & exponent */ +#ifdef __ARMEB__ + get_user(p[1], &pMem[1]); /* ms bits */ + get_user(p[2], &pMem[2]); /* ls bits */ +#else get_user(p[1], &pMem[2]); /* ls bits */ get_user(p[2], &pMem[1]); /* ms bits */ +#endif } #endif @@ -177,8 +182,13 @@ static inline void storeExtended(const unsigned int Fn, unsigned int __user *pMe } put_user(val.i[0], &pMem[0]); /* sign & exp */ +#ifdef __ARMEB__ + put_user(val.i[1], &pMem[1]); /* msw */ + put_user(val.i[2], &pMem[2]); +#else put_user(val.i[1], &pMem[2]); put_user(val.i[2], &pMem[1]); /* msw */ +#endif } #endif |