summaryrefslogtreecommitdiff
path: root/arch/powerpc/net/bpf_jit.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/net/bpf_jit.h')
-rw-r--r--arch/powerpc/net/bpf_jit.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index 8a5dfaf5c6b7..9aee27c582dc 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -39,6 +39,7 @@
#define r_X 5
#define r_addr 6
#define r_scratch1 7
+#define r_scratch2 8
#define r_D 14
#define r_HL 15
#define r_M 16
@@ -92,6 +93,8 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh);
___PPC_RA(base) | IMM_L(i))
#define PPC_LHZ(r, base, i) EMIT(PPC_INST_LHZ | ___PPC_RT(r) | \
___PPC_RA(base) | IMM_L(i))
+#define PPC_LHBRX(r, base, b) EMIT(PPC_INST_LHBRX | ___PPC_RT(r) | \
+ ___PPC_RA(base) | ___PPC_RB(b))
/* Convenience helpers for the above with 'far' offsets: */
#define PPC_LD_OFFS(r, base, i) do { if ((i) < 32768) PPC_LD(r, base, i); \
else { PPC_ADDIS(r, base, IMM_HA(i)); \
@@ -186,6 +189,14 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh);
PPC_ORI(d, d, (uintptr_t)(i) & 0xffff); \
} } while (0);
+#define PPC_LHBRX_OFFS(r, base, i) \
+ do { PPC_LI32(r, i); PPC_LHBRX(r, r, base); } while(0)
+#ifdef __LITTLE_ENDIAN__
+#define PPC_NTOHS_OFFS(r, base, i) PPC_LHBRX_OFFS(r, base, i)
+#else
+#define PPC_NTOHS_OFFS(r, base, i) PPC_LHZ_OFFS(r, base, i)
+#endif
+
static inline bool is_nearbranch(int offset)
{
return (offset < 32768) && (offset >= -32768);