Initial import

1 files changed, 303 insertions, 0 deletions

diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h
new file mode 100644
index 000000000..fc1cdd25f
--- /dev/null
+++ b/arch/mips/include/asm/uasm.h
@@ -0,0 +1,303 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2004, 2005, 2006, 2008	 Thiemo Seufer
+ * Copyright (C) 2005  Maciej W. Rozycki
+ * Copyright (C) 2006  Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2012, 2013  MIPS Technologies, Inc.  All rights reserved.
+ */
+
+#include <linux/types.h>
+
+#ifdef CONFIG_EXPORT_UASM
+#include <linux/export.h>
+#define UASM_EXPORT_SYMBOL(sym) EXPORT_SYMBOL(sym)
+#else
+#define UASM_EXPORT_SYMBOL(sym)
+#endif
+
+#define _UASM_ISA_CLASSIC	0
+#define _UASM_ISA_MICROMIPS	1
+
+#ifndef UASM_ISA
+#ifdef CONFIG_CPU_MICROMIPS
+#define UASM_ISA	_UASM_ISA_MICROMIPS
+#else
+#define UASM_ISA	_UASM_ISA_CLASSIC
+#endif
+#endif
+
+#if (UASM_ISA == _UASM_ISA_CLASSIC)
+#ifdef CONFIG_CPU_MICROMIPS
+#define ISAOPC(op)	CL_uasm_i##op
+#define ISAFUNC(x)	CL_##x
+#else
+#define ISAOPC(op)	uasm_i##op
+#define ISAFUNC(x)	x
+#endif
+#elif (UASM_ISA == _UASM_ISA_MICROMIPS)
+#ifdef CONFIG_CPU_MICROMIPS
+#define ISAOPC(op)	uasm_i##op
+#define ISAFUNC(x)	x
+#else
+#define ISAOPC(op)	MM_uasm_i##op
+#define ISAFUNC(x)	MM_##x
+#endif
+#else
+#error Unsupported micro-assembler ISA!!!
+#endif
+
+#define Ip_u1u2u3(op)							\
+void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
+
+#define Ip_u2u1u3(op)							\
+void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
+
+#define Ip_u3u2u1(op)							\
+void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
+
+#define Ip_u3u1u2(op)							\
+void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
+
+#define Ip_u1u2s3(op)							\
+void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b, signed int c)
+
+#define Ip_u2s3u1(op)							\
+void ISAOPC(op)(u32 **buf, unsigned int a, signed int b, unsigned int c)
+
+#define Ip_s3s1s2(op)							\
+void ISAOPC(op)(u32 **buf, int a, int b, int c)
+
+#define Ip_u2u1s3(op)							\
+void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b, signed int c)
+
+#define Ip_u2u1msbu3(op)						\
+void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b, unsigned int c, \
+	   unsigned int d)
+
+#define Ip_u1u2(op)							\
+void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b)
+
+#define Ip_u2u1(op)							\
+void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b)
+
+#define Ip_u1s2(op)							\
+void ISAOPC(op)(u32 **buf, unsigned int a, signed int b)
+
+#define Ip_u1(op) void ISAOPC(op)(u32 **buf, unsigned int a)
+
+#define Ip_0(op) void ISAOPC(op)(u32 **buf)
+
+Ip_u2u1s3(_addiu);
+Ip_u3u1u2(_addu);
+Ip_u3u1u2(_and);
+Ip_u2u1u3(_andi);
+Ip_u1u2s3(_bbit0);
+Ip_u1u2s3(_bbit1);
+Ip_u1u2s3(_beq);
+Ip_u1u2s3(_beql);
+Ip_u1s2(_bgez);
+Ip_u1s2(_bgezl);
+Ip_u1s2(_bltz);
+Ip_u1s2(_bltzl);
+Ip_u1u2s3(_bne);
+Ip_u2s3u1(_cache);
+Ip_u2u1s3(_daddiu);
+Ip_u3u1u2(_daddu);
+Ip_u2u1msbu3(_dins);
+Ip_u2u1msbu3(_dinsm);
+Ip_u1u2(_divu);
+Ip_u1u2u3(_dmfc0);
+Ip_u1u2u3(_dmtc0);
+Ip_u2u1u3(_drotr);
+Ip_u2u1u3(_drotr32);
+Ip_u2u1u3(_dsll);
+Ip_u2u1u3(_dsll32);
+Ip_u2u1u3(_dsra);
+Ip_u2u1u3(_dsrl);
+Ip_u2u1u3(_dsrl32);
+Ip_u3u1u2(_dsubu);
+Ip_0(_eret);
+Ip_u2u1msbu3(_ext);
+Ip_u2u1msbu3(_ins);
+Ip_u1(_j);
+Ip_u1(_jal);
+Ip_u2u1(_jalr);
+Ip_u1(_jr);
+Ip_u2s3u1(_lb);
+Ip_u2s3u1(_ld);
+Ip_u3u1u2(_ldx);
+Ip_u2s3u1(_lh);
+Ip_u2s3u1(_ll);
+Ip_u2s3u1(_lld);
+Ip_u1s2(_lui);
+Ip_u2s3u1(_lw);
+Ip_u3u1u2(_lwx);
+Ip_u1u2u3(_mfc0);
+Ip_u1u2u3(_mfhc0);
+Ip_u1(_mfhi);
+Ip_u1(_mflo);
+Ip_u1u2u3(_mtc0);
+Ip_u1u2u3(_mthc0);
+Ip_u3u1u2(_mul);
+Ip_u3u1u2(_or);
+Ip_u2u1u3(_ori);
+Ip_u2s3u1(_pref);
+Ip_0(_rfe);
+Ip_u2u1u3(_rotr);
+Ip_u2s3u1(_sc);
+Ip_u2s3u1(_scd);
+Ip_u2s3u1(_sd);
+Ip_u2u1u3(_sll);
+Ip_u3u2u1(_sllv);
+Ip_s3s1s2(_slt);
+Ip_u2u1s3(_sltiu);
+Ip_u3u1u2(_sltu);
+Ip_u2u1u3(_sra);
+Ip_u2u1u3(_srl);
+Ip_u3u2u1(_srlv);
+Ip_u3u1u2(_subu);
+Ip_u2s3u1(_sw);
+Ip_u1(_sync);
+Ip_u1(_syscall);
+Ip_0(_tlbp);
+Ip_0(_tlbr);
+Ip_0(_tlbwi);
+Ip_0(_tlbwr);
+Ip_u1(_wait);
+Ip_u2u1(_wsbh);
+Ip_u3u1u2(_xor);
+Ip_u2u1u3(_xori);
+Ip_u2u1(_yield);
+
+
+/* Handle labels. */
+struct uasm_label {
+	u32 *addr;
+	int lab;
+};
+
+void ISAFUNC(uasm_build_label)(struct uasm_label **lab, u32 *addr,
+			int lid);
+#ifdef CONFIG_64BIT
+int ISAFUNC(uasm_in_compat_space_p)(long addr);
+#endif
+int ISAFUNC(uasm_rel_hi)(long val);
+int ISAFUNC(uasm_rel_lo)(long val);
+void ISAFUNC(UASM_i_LA_mostly)(u32 **buf, unsigned int rs, long addr);
+void ISAFUNC(UASM_i_LA)(u32 **buf, unsigned int rs, long addr);
+
+#define UASM_L_LA(lb)							\
+static inline void ISAFUNC(uasm_l##lb)(struct uasm_label **lab, u32 *addr) \
+{									\
+	ISAFUNC(uasm_build_label)(lab, addr, label##lb);		\
+}
+
+/* convenience macros for instructions */
+#ifdef CONFIG_64BIT
+# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val)
+# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd)
+# define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off)
+# define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off)
+# define UASM_i_LWX(buf, rs, rt, rd) uasm_i_ldx(buf, rs, rt, rd)
+# define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd)
+# define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd)
+# define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_drotr(buf, rs, rt, sh)
+# define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off)
+# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh)
+# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh)
+# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh)
+# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_dsrl_safe(buf, rs, rt, sh)
+# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd)
+# define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off)
+#else
+# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val)
+# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd)
+# define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off)
+# define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off)
+# define UASM_i_LWX(buf, rs, rt, rd) uasm_i_lwx(buf, rs, rt, rd)
+# define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd)
+# define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd)
+# define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_rotr(buf, rs, rt, sh)
+# define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off)
+# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh)
+# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh)
+# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
+# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
+# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd)
+# define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off)
+#endif
+
+#define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off)
+#define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off)
+#define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off)
+#define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off)
+#define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off)
+#define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3)
+#define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b)
+#define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0)
+#define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1)
+
+static inline void uasm_i_drotr_safe(u32 **p, unsigned int a1,
+				     unsigned int a2, unsigned int a3)
+{
+	if (a3 < 32)
+		ISAOPC(_drotr)(p, a1, a2, a3);
+	else
+		ISAOPC(_drotr32)(p, a1, a2, a3 - 32);
+}
+
+static inline void uasm_i_dsll_safe(u32 **p, unsigned int a1,
+				    unsigned int a2, unsigned int a3)
+{
+	if (a3 < 32)
+		ISAOPC(_dsll)(p, a1, a2, a3);
+	else
+		ISAOPC(_dsll32)(p, a1, a2, a3 - 32);
+}
+
+static inline void uasm_i_dsrl_safe(u32 **p, unsigned int a1,
+				    unsigned int a2, unsigned int a3)
+{
+	if (a3 < 32)
+		ISAOPC(_dsrl)(p, a1, a2, a3);
+	else
+		ISAOPC(_dsrl32)(p, a1, a2, a3 - 32);
+}
+
+/* Handle relocations. */
+struct uasm_reloc {
+	u32 *addr;
+	unsigned int type;
+	int lab;
+};
+
+/* This is zero so we can use zeroed label arrays. */
+#define UASM_LABEL_INVALID 0
+
+void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid);
+void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab);
+void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off);
+void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off);
+void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab,
+	u32 *first, u32 *end, u32 *target);
+int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr);
+
+/* Convenience functions for labeled branches. */
+void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid);
+void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg,
+		   unsigned int bit, int lid);
+void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg,
+		   unsigned int bit, int lid);
+void uasm_il_beq(u32 **p, struct uasm_reloc **r, unsigned int r1,
+		 unsigned int r2, int lid);
+void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
+void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
+void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
+void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
+void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
+void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1,
+		 unsigned int reg2, int lid);
+void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);