From: "Naveen N. Rao" <naveen.n....@linux.vnet.ibm.com>
Introduce __PPC_SH64() as a 64-bit variant to encode shift field in some
of the shift and rotate instructions operating on double-words. Convert
some of the BPF instruction macros to use the same.
Signed-off-by: Naveen N. Rao <naveen.n....@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/ppc-opcode.h | 1 +
arch/powerpc/net/bpf_jit.h | 11 +++++------
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/include/asm/ppc-opcode.h
b/arch/powerpc/include/asm/ppc-opcode.h
index 0132831..630127b 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -306,6 +306,7 @@
#define __PPC_WC(w) (((w) & 0x3) << 21)
#define __PPC_WS(w) (((w) & 0x1f) << 11)
#define __PPC_SH(s) __PPC_WS(s)
+#define __PPC_SH64(s) (__PPC_SH(s) | (((s) & 0x20) >> 4))
#define __PPC_MB(s) (((s) & 0x1f) << 6)
#define __PPC_ME(s) (((s) & 0x1f) << 1)
#define __PPC_MB64(s) (__PPC_MB(s) | ((s) & 0x20))
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index 89f7007..30cf03f 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -157,8 +157,7 @@
#define PPC_SRAD(d, a, s) EMIT(PPC_INST_SRAD | ___PPC_RA(d) | \
___PPC_RS(a) | ___PPC_RB(s))
#define PPC_SRADI(d, a, i) EMIT(PPC_INST_SRADI | ___PPC_RA(d) | \
- ___PPC_RS(a) | __PPC_SH(i) | \
- (((i) & 0x20) >> 4))
+ ___PPC_RS(a) | __PPC_SH64(i))
#define PPC_RLWINM(d, a, i, mb, me) EMIT(PPC_INST_RLWINM | ___PPC_RA(d) | \
___PPC_RS(a) | __PPC_SH(i) | \
__PPC_MB(mb) | __PPC_ME(me))
@@ -166,11 +165,11 @@
___PPC_RS(a) | __PPC_SH(i) | \
__PPC_MB(mb) | __PPC_ME(me))
#define PPC_RLDICL(d, a, i, mb) EMIT(PPC_INST_RLDICL |
___PPC_RA(d) | \
- ___PPC_RS(a) | __PPC_SH(i) | \
- __PPC_MB64(mb) | (((i) & 0x20) >> 4))
+ ___PPC_RS(a) | __PPC_SH64(i) | \
+ __PPC_MB64(mb))
#define PPC_RLDICR(d, a, i, me) EMIT(PPC_INST_RLDICR |
___PPC_RA(d) | \
- ___PPC_RS(a) | __PPC_SH(i) | \
- __PPC_ME64(me) | (((i) & 0x20) >> 4))
+ ___PPC_RS(a) | __PPC_SH64(i) | \
+ __PPC_ME64(me))
/* slwi = rlwinm Rx, Ry, n, 0, 31-n */
#define PPC_SLWI(d, a, i) PPC_RLWINM(d, a, i, 0, 31-(i))
--
2.7.4
