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diff --git a/src/gallium/drivers/etnaviv/etnaviv_asm.h b/src/gallium/drivers/etnaviv/etnaviv_asm.h
new file mode 100644
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+++ b/src/gallium/drivers/etnaviv/etnaviv_asm.h
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2012-2015 Etnaviv Project
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Wladimir J. van der Laan <laanwj@gmail.com>
+ */
+
+#ifndef H_ETNAVIV_ASM
+#define H_ETNAVIV_ASM
+
+#include <stdint.h>
+#include "hw/isa.xml.h"
+
+/* Size of an instruction in 32-bit words */
+#define ETNA_INST_SIZE (4)
+/* Number of source operands per instruction */
+#define ETNA_NUM_SRC (3)
+
+/* Broadcast swizzle to all four components */
+#define INST_SWIZ_BROADCAST(x) \
+        (INST_SWIZ_X(x) | INST_SWIZ_Y(x) | INST_SWIZ_Z(x) | INST_SWIZ_W(x))
+/* Identity (NOP) swizzle */
+#define INST_SWIZ_IDENTITY \
+        (INST_SWIZ_X(0) | INST_SWIZ_Y(1) | INST_SWIZ_Z(2) | INST_SWIZ_W(3))
+/* Fully specified swizzle */
+#define INST_SWIZ(x,y,z,w) \
+        (INST_SWIZ_X(x) | INST_SWIZ_Y(y) | INST_SWIZ_Z(z) | INST_SWIZ_W(w))
+#define SWIZZLE(c0,c1,c2,c3) \
+        INST_SWIZ(INST_SWIZ_COMP_##c0, \
+                  INST_SWIZ_COMP_##c1, \
+                  INST_SWIZ_COMP_##c2, \
+                  INST_SWIZ_COMP_##c3)
+
+/*** operands ***/
+
+/* destination operand */
+struct etna_inst_dst {
+   unsigned use:1; /* 0: not in use, 1: in use */
+   unsigned amode:3; /* INST_AMODE_* */
+   unsigned reg:7; /* register number 0..127 */
+   unsigned comps:4; /* INST_COMPS_* */
+};
+
+/* texture operand */
+struct etna_inst_tex {
+   unsigned id:5; /* sampler id */
+   unsigned amode:3; /* INST_AMODE_* */
+   unsigned swiz:8; /* INST_SWIZ */
+};
+
+/* source operand */
+struct etna_inst_src {
+   unsigned use:1; /* 0: not in use, 1: in use */
+   unsigned reg:9; /* register or uniform number 0..511 */
+   unsigned swiz:8;   /* INST_SWIZ */
+   unsigned neg:1;    /* negate (flip sign) if set */
+   unsigned abs:1;    /* absolute (remove sign) if set */
+   unsigned amode:3;  /* INST_AMODE_* */
+   unsigned rgroup:3; /* INST_RGROUP_* */
+};
+
+/*** instruction ***/
+struct etna_inst {
+   uint8_t opcode; /* INST_OPCODE_* */
+   uint8_t type; /* INST_TYPE_* */
+   unsigned cond:5; /* INST_CONDITION_* */
+   unsigned sat:1; /* saturate result between 0..1 */
+   struct etna_inst_dst dst; /* destination operand */
+   struct etna_inst_tex tex; /* texture operand */
+   struct etna_inst_src src[ETNA_NUM_SRC]; /* source operand */
+   unsigned imm;  /* takes place of src[2] for BRANCH/CALL */
+};
+
+/* Compose two swizzles (computes swz1.swz2) */
+static inline uint32_t inst_swiz_compose(uint32_t swz1, uint32_t swz2)
+{
+   return INST_SWIZ_X((swz1 >> (((swz2 >> 0)&3)*2))&3) |
+          INST_SWIZ_Y((swz1 >> (((swz2 >> 2)&3)*2))&3) |
+          INST_SWIZ_Z((swz1 >> (((swz2 >> 4)&3)*2))&3) |
+          INST_SWIZ_W((swz1 >> (((swz2 >> 6)&3)*2))&3);
+};
+
+/* Return whether the rgroup is one of the uniforms */
+static inline int
+etna_rgroup_is_uniform(unsigned rgroup)
+{
+   return rgroup == INST_RGROUP_UNIFORM_0 ||
+          rgroup == INST_RGROUP_UNIFORM_1;
+}
+
+/**
+ * Build vivante instruction from structure with
+ *  opcode, cond, sat, dst_use, dst_amode,
+ *  dst_reg, dst_comps, tex_id, tex_amode, tex_swiz,
+ *  src[0-2]_reg, use, swiz, neg, abs, amode, rgroup,
+ *  imm
+ *
+ * Return 0 if successful, and a non-zero
+ * value otherwise.
+ */
+int
+etna_assemble(uint32_t *out, const struct etna_inst *inst);
+
+/**
+ * Set field imm of already-assembled instruction.
+ * This is used for filling in jump destinations in a separate pass.
+ */
+static inline void
+etna_assemble_set_imm(uint32_t *out, uint32_t imm)
+{
+    out[3] |= VIV_ISA_WORD_3_SRC2_IMM(imm);
+}
+
+#endif