powerpc/bpf: Fix DIVWU instruction opcode
authorVladimir Murzin <murzin.v@gmail.com>
Sat, 28 Sep 2013 08:22:00 +0000 (10:22 +0200)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Thu, 31 Oct 2013 05:19:20 +0000 (16:19 +1100)
Currently DIVWU stands for *signed* divw opcode:

7d 2a 4b 96  divwu   r9,r10,r9
7d 2a 4b d6  divw    r9,r10,r9

Use the *unsigned* divw opcode for DIVWU.

Suggested-by: Vassili Karpov <av1474@comtv.ru>
Reviewed-by: Vassili Karpov <av1474@comtv.ru>
Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
Acked-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/include/asm/ppc-opcode.h

index 99f87906de1740022c7ee1d6f479740949bead19..3132bb9365f33788771c610aea90e25384f736d0 100644 (file)
 #define PPC_INST_MULLW                 0x7c0001d6
 #define PPC_INST_MULHWU                        0x7c000016
 #define PPC_INST_MULLI                 0x1c000000
-#define PPC_INST_DIVWU                 0x7c0003d6
+#define PPC_INST_DIVWU                 0x7c000396
 #define PPC_INST_RLWINM                        0x54000000
 #define PPC_INST_RLDICR                        0x78000004
 #define PPC_INST_SLW                   0x7c000030
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