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| author | Philippe Bergheaud <felix@linux.vnet.ibm.com> | 2013-09-24 14:13:35 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-31 16:19:15 +1100 |
| commit | 9c662cad2fb66ff3a44b1d4f545bf496bf67ab10 (patch) | |
| tree | 631ffe0b18388dd7010c2ad36765307816e8ae22 /arch/powerpc/net/bpf_jit.h | |
| parent | 711b5138d54fcfd5e312cea895d6e706a46eff19 (diff) | |
| download | op-kernel-dev-9c662cad2fb66ff3a44b1d4f545bf496bf67ab10.zip op-kernel-dev-9c662cad2fb66ff3a44b1d4f545bf496bf67ab10.tar.gz | |
powerpc/bpf: BPF JIT compiler for 64-bit Little Endian
This enables the Berkeley Packet Filter JIT compiler
for the PowerPC running in 64bit Little Endian.
Signed-off-by: Philippe Bergheaud <felix@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/net/bpf_jit.h')
| -rw-r--r-- | arch/powerpc/net/bpf_jit.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h index 8a5dfaf..0baf2b8 100644 --- a/arch/powerpc/net/bpf_jit.h +++ b/arch/powerpc/net/bpf_jit.h @@ -92,6 +92,8 @@ 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 +188,14 @@ 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); |
