diff options
| author | Bharat Bhushan <r65777@freescale.com> | 2013-10-09 10:41:17 +0530 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-11 16:49:27 +1100 |
| commit | 41b93b238ab394c8cf0935ec3ba31c700a2b3b25 (patch) | |
| tree | 13d3450edf167edb4c4114e025e69824aac38e96 /arch/powerpc/kernel/misc_32.S | |
| parent | 8616dff5b0e969444cc8484875ebd936956b5c0d (diff) | |
powerpc: Added __cmpdi2 for signed 64bit comparision
This was missing on powerpc and I am getting compilation error
drivers/vfio/pci/vfio_pci_rdwr.c:193: undefined reference to `__cmpdi2'
drivers/vfio/pci/vfio_pci_rdwr.c:193: undefined reference to `__cmpdi2'
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
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.S | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 2b0ad9845363..e47d268727a4 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -659,6 +659,20 @@ _GLOBAL(__lshrdi3) blr /* + * 64-bit comparison: __cmpdi2(s64 a, s64 b) + * Returns 0 if a < b, 1 if a == b, 2 if a > b. + */ +_GLOBAL(__cmpdi2) + cmpw r3,r5 + li r3,1 + bne 1f + cmplw r4,r6 + beqlr +1: li r3,0 + bltlr + li r3,2 + blr +/* * 64-bit comparison: __ucmpdi2(u64 a, u64 b) * Returns 0 if a < b, 1 if a == b, 2 if a > b. */ |