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authorDavid Woodhouse <David.Woodhouse@intel.com>2013-05-13 00:23:38 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-05-14 16:00:17 +1000
commitca9d7aea5952c5e90bfe28ed738a7e962c0adad2 (patch)
tree5e8cdcf9447c2263219eaa7f0b4f5ad7fd176ee7 /arch/powerpc/kernel/misc_32.S
parentb2b48584dfc69a5ebc70ee7976524d7122e5df5f (diff)
powerpc: Provide __bswapdi2
Some versions of GCC apparently expect this to be provided by libgcc. Updates from Mikey to fix 32 bit version and adding "r" to registers. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/misc_32.S')
-rw-r--r--arch/powerpc/kernel/misc_32.S11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 19e096bd0e73..e469f30e6eeb 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -657,6 +657,17 @@ _GLOBAL(__ucmpdi2)
li r3,2
blr
+_GLOBAL(__bswapdi2)
+ rotlwi r9,r4,8
+ rotlwi r10,r3,8
+ rlwimi r9,r4,24,0,7
+ rlwimi r10,r3,24,0,7
+ rlwimi r9,r4,24,16,23
+ rlwimi r10,r3,24,16,23
+ mr r3,r9
+ mr r4,r10
+ blr
+
_GLOBAL(abs)
srawi r4,r3,31
xor r3,r3,r4