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authorLennert Buytenhek <buytenh@wantstofly.org>2005-11-08 00:12:08 +0300
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-11-08 00:12:08 +0300
commitbedf142b8bba4331ed93161292a4ce4f8cde7308 (patch)
treecde053618935762e37badb509d191ac006ae197a /arch/arm/nwfpe/fpa11_cpdt.c
parent06c03cac9487555478c7d80065ebf7818bf6fd06 (diff)
downloadlinux-bedf142b8bba4331ed93161292a4ce4f8cde7308.tar.xz
[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.c10
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