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-rw-r--r--arch/powerpc/net/bpf_jit.h184
1 files changed, 15 insertions, 169 deletions
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index 55d4377ccfae..d0a67a1bbaf1 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -11,6 +11,7 @@
#ifndef __ASSEMBLY__
#include <asm/types.h>
+#include <asm/ppc-opcode.h>
#ifdef PPC64_ELF_ABI_v1
#define FUNCTION_DESCR_SIZE 24
@@ -18,167 +19,10 @@
#define FUNCTION_DESCR_SIZE 0
#endif
-/*
- * 16-bit immediate helper macros: HA() is for use with sign-extending instrs
- * (e.g. LD, ADDI). If the bottom 16 bits is "-ve", add another bit into the
- * top half to negate the effect (i.e. 0xffff + 1 = 0x(1)0000).
- */
-#define IMM_H(i) ((uintptr_t)(i)>>16)
-#define IMM_HA(i) (((uintptr_t)(i)>>16) + \
- (((uintptr_t)(i) & 0x8000) >> 15))
-#define IMM_L(i) ((uintptr_t)(i) & 0xffff)
-
#define PLANT_INSTR(d, idx, instr) \
do { if (d) { (d)[idx] = instr; } idx++; } while (0)
#define EMIT(instr) PLANT_INSTR(image, ctx->idx, instr)
-#define PPC_NOP() EMIT(PPC_INST_NOP)
-#define PPC_BLR() EMIT(PPC_INST_BLR)
-#define PPC_BLRL() EMIT(PPC_INST_BLRL)
-#define PPC_MTLR(r) EMIT(PPC_INST_MTLR | ___PPC_RT(r))
-#define PPC_BCTR() EMIT(PPC_INST_BCTR)
-#define PPC_MTCTR(r) EMIT(PPC_INST_MTCTR | ___PPC_RT(r))
-#define PPC_ADDI(d, a, i) EMIT(PPC_INST_ADDI | ___PPC_RT(d) | \
- ___PPC_RA(a) | IMM_L(i))
-#define PPC_MR(d, a) PPC_OR(d, a, a)
-#define PPC_LI(r, i) PPC_ADDI(r, 0, i)
-#define PPC_ADDIS(d, a, i) EMIT(PPC_INST_ADDIS | \
- ___PPC_RT(d) | ___PPC_RA(a) | IMM_L(i))
-#define PPC_LIS(r, i) PPC_ADDIS(r, 0, i)
-#define PPC_STD(r, base, i) EMIT(PPC_INST_STD | ___PPC_RS(r) | \
- ___PPC_RA(base) | ((i) & 0xfffc))
-#define PPC_STDX(r, base, b) EMIT(PPC_INST_STDX | ___PPC_RS(r) | \
- ___PPC_RA(base) | ___PPC_RB(b))
-#define PPC_STDU(r, base, i) EMIT(PPC_INST_STDU | ___PPC_RS(r) | \
- ___PPC_RA(base) | ((i) & 0xfffc))
-#define PPC_STW(r, base, i) EMIT(PPC_INST_STW | ___PPC_RS(r) | \
- ___PPC_RA(base) | IMM_L(i))
-#define PPC_STWU(r, base, i) EMIT(PPC_INST_STWU | ___PPC_RS(r) | \
- ___PPC_RA(base) | IMM_L(i))
-#define PPC_STH(r, base, i) EMIT(PPC_INST_STH | ___PPC_RS(r) | \
- ___PPC_RA(base) | IMM_L(i))
-#define PPC_STB(r, base, i) EMIT(PPC_INST_STB | ___PPC_RS(r) | \
- ___PPC_RA(base) | IMM_L(i))
-
-#define PPC_LBZ(r, base, i) EMIT(PPC_INST_LBZ | ___PPC_RT(r) | \
- ___PPC_RA(base) | IMM_L(i))
-#define PPC_LD(r, base, i) EMIT(PPC_INST_LD | ___PPC_RT(r) | \
- ___PPC_RA(base) | ((i) & 0xfffc))
-#define PPC_LDX(r, base, b) EMIT(PPC_INST_LDX | ___PPC_RT(r) | \
- ___PPC_RA(base) | ___PPC_RB(b))
-#define PPC_LWZ(r, base, i) EMIT(PPC_INST_LWZ | ___PPC_RT(r) | \
- ___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))
-#define PPC_LDBRX(r, base, b) EMIT(PPC_INST_LDBRX | ___PPC_RT(r) | \
- ___PPC_RA(base) | ___PPC_RB(b))
-
-#define PPC_BPF_LDARX(t, a, b, eh) EMIT(PPC_INST_LDARX | ___PPC_RT(t) | \
- ___PPC_RA(a) | ___PPC_RB(b) | \
- __PPC_EH(eh))
-#define PPC_BPF_LWARX(t, a, b, eh) EMIT(PPC_INST_LWARX | ___PPC_RT(t) | \
- ___PPC_RA(a) | ___PPC_RB(b) | \
- __PPC_EH(eh))
-#define PPC_BPF_STWCX(s, a, b) EMIT(PPC_INST_STWCX | ___PPC_RS(s) | \
- ___PPC_RA(a) | ___PPC_RB(b))
-#define PPC_BPF_STDCX(s, a, b) EMIT(PPC_INST_STDCX | ___PPC_RS(s) | \
- ___PPC_RA(a) | ___PPC_RB(b))
-#define PPC_CMPWI(a, i) EMIT(PPC_INST_CMPWI | ___PPC_RA(a) | IMM_L(i))
-#define PPC_CMPDI(a, i) EMIT(PPC_INST_CMPDI | ___PPC_RA(a) | IMM_L(i))
-#define PPC_CMPW(a, b) EMIT(PPC_INST_CMPW | ___PPC_RA(a) | \
- ___PPC_RB(b))
-#define PPC_CMPD(a, b) EMIT(PPC_INST_CMPD | ___PPC_RA(a) | \
- ___PPC_RB(b))
-#define PPC_CMPLWI(a, i) EMIT(PPC_INST_CMPLWI | ___PPC_RA(a) | IMM_L(i))
-#define PPC_CMPLDI(a, i) EMIT(PPC_INST_CMPLDI | ___PPC_RA(a) | IMM_L(i))
-#define PPC_CMPLW(a, b) EMIT(PPC_INST_CMPLW | ___PPC_RA(a) | \
- ___PPC_RB(b))
-#define PPC_CMPLD(a, b) EMIT(PPC_INST_CMPLD | ___PPC_RA(a) | \
- ___PPC_RB(b))
-
-#define PPC_SUB(d, a, b) EMIT(PPC_INST_SUB | ___PPC_RT(d) | \
- ___PPC_RB(a) | ___PPC_RA(b))
-#define PPC_ADD(d, a, b) EMIT(PPC_INST_ADD | ___PPC_RT(d) | \
- ___PPC_RA(a) | ___PPC_RB(b))
-#define PPC_MULD(d, a, b) EMIT(PPC_INST_MULLD | ___PPC_RT(d) | \
- ___PPC_RA(a) | ___PPC_RB(b))
-#define PPC_MULW(d, a, b) EMIT(PPC_INST_MULLW | ___PPC_RT(d) | \
- ___PPC_RA(a) | ___PPC_RB(b))
-#define PPC_MULHWU(d, a, b) EMIT(PPC_INST_MULHWU | ___PPC_RT(d) | \
- ___PPC_RA(a) | ___PPC_RB(b))
-#define PPC_MULI(d, a, i) EMIT(PPC_INST_MULLI | ___PPC_RT(d) | \
- ___PPC_RA(a) | IMM_L(i))
-#define PPC_DIVWU(d, a, b) EMIT(PPC_INST_DIVWU | ___PPC_RT(d) | \
- ___PPC_RA(a) | ___PPC_RB(b))
-#define PPC_DIVDU(d, a, b) EMIT(PPC_INST_DIVDU | ___PPC_RT(d) | \
- ___PPC_RA(a) | ___PPC_RB(b))
-#define PPC_AND(d, a, b) EMIT(PPC_INST_AND | ___PPC_RA(d) | \
- ___PPC_RS(a) | ___PPC_RB(b))
-#define PPC_ANDI(d, a, i) EMIT(PPC_INST_ANDI | ___PPC_RA(d) | \
- ___PPC_RS(a) | IMM_L(i))
-#define PPC_AND_DOT(d, a, b) EMIT(PPC_INST_ANDDOT | ___PPC_RA(d) | \
- ___PPC_RS(a) | ___PPC_RB(b))
-#define PPC_OR(d, a, b) EMIT(PPC_INST_OR | ___PPC_RA(d) | \
- ___PPC_RS(a) | ___PPC_RB(b))
-#define PPC_MR(d, a) PPC_OR(d, a, a)
-#define PPC_ORI(d, a, i) EMIT(PPC_INST_ORI | ___PPC_RA(d) | \
- ___PPC_RS(a) | IMM_L(i))
-#define PPC_ORIS(d, a, i) EMIT(PPC_INST_ORIS | ___PPC_RA(d) | \
- ___PPC_RS(a) | IMM_L(i))
-#define PPC_XOR(d, a, b) EMIT(PPC_INST_XOR | ___PPC_RA(d) | \
- ___PPC_RS(a) | ___PPC_RB(b))
-#define PPC_XORI(d, a, i) EMIT(PPC_INST_XORI | ___PPC_RA(d) | \
- ___PPC_RS(a) | IMM_L(i))
-#define PPC_XORIS(d, a, i) EMIT(PPC_INST_XORIS | ___PPC_RA(d) | \
- ___PPC_RS(a) | IMM_L(i))
-#define PPC_EXTSW(d, a) EMIT(PPC_INST_EXTSW | ___PPC_RA(d) | \
- ___PPC_RS(a))
-#define PPC_SLW(d, a, s) EMIT(PPC_INST_SLW | ___PPC_RA(d) | \
- ___PPC_RS(a) | ___PPC_RB(s))
-#define PPC_SLD(d, a, s) EMIT(PPC_INST_SLD | ___PPC_RA(d) | \
- ___PPC_RS(a) | ___PPC_RB(s))
-#define PPC_SRW(d, a, s) EMIT(PPC_INST_SRW | ___PPC_RA(d) | \
- ___PPC_RS(a) | ___PPC_RB(s))
-#define PPC_SRAW(d, a, s) EMIT(PPC_INST_SRAW | ___PPC_RA(d) | \
- ___PPC_RS(a) | ___PPC_RB(s))
-#define PPC_SRAWI(d, a, i) EMIT(PPC_INST_SRAWI | ___PPC_RA(d) | \
- ___PPC_RS(a) | __PPC_SH(i))
-#define PPC_SRD(d, a, s) EMIT(PPC_INST_SRD | ___PPC_RA(d) | \
- ___PPC_RS(a) | ___PPC_RB(s))
-#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_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))
-#define PPC_RLWINM_DOT(d, a, i, mb, me) EMIT(PPC_INST_RLWINM_DOT | \
- ___PPC_RA(d) | ___PPC_RS(a) | \
- __PPC_SH(i) | __PPC_MB(mb) | \
- __PPC_ME(me))
-#define PPC_RLWIMI(d, a, i, mb, me) EMIT(PPC_INST_RLWIMI | ___PPC_RA(d) | \
- ___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_SH64(i) | \
- __PPC_MB64(mb))
-#define PPC_RLDICR(d, a, i, me) EMIT(PPC_INST_RLDICR | ___PPC_RA(d) | \
- ___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))
-/* srwi = rlwinm Rx, Ry, 32-n, n, 31 */
-#define PPC_SRWI(d, a, i) PPC_RLWINM(d, a, 32-(i), i, 31)
-/* sldi = rldicr Rx, Ry, n, 63-n */
-#define PPC_SLDI(d, a, i) PPC_RLDICR(d, a, i, 63-(i))
-/* sldi = rldicl Rx, Ry, 64-n, n */
-#define PPC_SRDI(d, a, i) PPC_RLDICL(d, a, 64-(i), i)
-
-#define PPC_NEG(d, a) EMIT(PPC_INST_NEG | ___PPC_RT(d) | ___PPC_RA(a))
-
/* Long jump; (unconditional 'branch') */
#define PPC_JMP(dest) EMIT(PPC_INST_BRANCH | \
(((dest) - (ctx->idx * 4)) & 0x03fffffc))
@@ -191,11 +35,11 @@
#define PPC_LI32(d, i) do { \
if ((int)(uintptr_t)(i) >= -32768 && \
(int)(uintptr_t)(i) < 32768) \
- PPC_LI(d, i); \
+ EMIT(PPC_RAW_LI(d, i)); \
else { \
- PPC_LIS(d, IMM_H(i)); \
+ EMIT(PPC_RAW_LIS(d, IMM_H(i))); \
if (IMM_L(i)) \
- PPC_ORI(d, d, IMM_L(i)); \
+ EMIT(PPC_RAW_ORI(d, d, IMM_L(i))); \
} } while(0)
#define PPC_LI64(d, i) do { \
@@ -204,19 +48,21 @@
PPC_LI32(d, i); \
else { \
if (!((uintptr_t)(i) & 0xffff800000000000ULL)) \
- PPC_LI(d, ((uintptr_t)(i) >> 32) & 0xffff); \
+ EMIT(PPC_RAW_LI(d, ((uintptr_t)(i) >> 32) & \
+ 0xffff)); \
else { \
- PPC_LIS(d, ((uintptr_t)(i) >> 48)); \
+ EMIT(PPC_RAW_LIS(d, ((uintptr_t)(i) >> 48))); \
if ((uintptr_t)(i) & 0x0000ffff00000000ULL) \
- PPC_ORI(d, d, \
- ((uintptr_t)(i) >> 32) & 0xffff); \
+ EMIT(PPC_RAW_ORI(d, d, \
+ ((uintptr_t)(i) >> 32) & 0xffff)); \
} \
- PPC_SLDI(d, d, 32); \
+ EMIT(PPC_RAW_SLDI(d, d, 32)); \
if ((uintptr_t)(i) & 0x00000000ffff0000ULL) \
- PPC_ORIS(d, d, \
- ((uintptr_t)(i) >> 16) & 0xffff); \
+ EMIT(PPC_RAW_ORIS(d, d, \
+ ((uintptr_t)(i) >> 16) & 0xffff)); \
if ((uintptr_t)(i) & 0x000000000000ffffULL) \
- PPC_ORI(d, d, (uintptr_t)(i) & 0xffff); \
+ EMIT(PPC_RAW_ORI(d, d, (uintptr_t)(i) & \
+ 0xffff)); \
} } while (0)
#ifdef CONFIG_PPC64
@@ -240,7 +86,7 @@ static inline bool is_nearbranch(int offset)
#define PPC_BCC(cond, dest) do { \
if (is_nearbranch((dest) - (ctx->idx * 4))) { \
PPC_BCC_SHORT(cond, dest); \
- PPC_NOP(); \
+ EMIT(PPC_RAW_NOP()); \
} else { \
/* Flip the 'T or F' bit to invert comparison */ \
PPC_BCC_SHORT(cond ^ COND_CMP_TRUE, (ctx->idx+2)*4); \
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-26 18:36:23 +0000