[Mesa-dev] [PATCH 02/19] i965: Introduce a new brw_inst API.
Matt Turner
mattst88 at gmail.com
Fri Jun 13 23:14:03 PDT 2014
From: Kenneth Graunke <kenneth at whitecape.org>
This is similar to gen8_instruction, and will replace it
For now nothing uses this, but we can incrementally convert.
The new API takes the existing brw_instruction pointers to ease
conversion; when done, we can simply drop the old structure and rename
struct brw_instruction -> brw_inst.
Reviewed-by: Matt Turner <mattst88 at gmail.com>
---
src/mesa/drivers/dri/i965/brw_inst.h | 660 +++++++++++++++++++++++++++++++++++
1 file changed, 660 insertions(+)
create mode 100644 src/mesa/drivers/dri/i965/brw_inst.h
diff --git a/src/mesa/drivers/dri/i965/brw_inst.h b/src/mesa/drivers/dri/i965/brw_inst.h
new file mode 100644
index 0000000..a0cef08
--- /dev/null
+++ b/src/mesa/drivers/dri/i965/brw_inst.h
@@ -0,0 +1,660 @@
+/*
+ * Copyright © 2014 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT. 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.
+ */
+
+/**
+ * @file brw_inst.h
+ *
+ * A representation of i965 EU assembly instructions, with helper methods to
+ * get and set various fields. This is the actual hardware format.
+ */
+
+#ifndef BRW_INST_H
+#define BRW_INST_H
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include "brw_context.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct brw_instruction;
+
+typedef struct {
+ uint64_t data[2];
+} brw_inst;
+
+static inline uint64_t brw_inst_bits(struct brw_instruction *inst,
+ unsigned high, unsigned low);
+static inline void brw_inst_set_bits(struct brw_instruction *inst,
+ unsigned high, unsigned low,
+ uint64_t value);
+
+#define FC(name, high, low, assertions) \
+static inline void \
+brw_inst_set_##name(const struct brw_context *brw, \
+ struct brw_instruction *inst, uint64_t v) \
+{ \
+ assert(assertions); \
+ brw_inst_set_bits(inst, high, low, v); \
+} \
+static inline uint64_t \
+brw_inst_##name(const struct brw_context *brw, \
+ struct brw_instruction *inst) \
+{ \
+ assert(assertions); \
+ return brw_inst_bits(inst, high, low); \
+}
+
+/* A simple macro for fields which stay in the same place on all generations. */
+#define F(name, high, low) FC(name, high, low, true)
+
+#define BOUNDS(hi4, lo4, hi45, lo45, hi5, lo5, hi6, lo6, hi7, lo7, hi8, lo8) \
+ unsigned high, low; \
+ if (brw->gen >= 8) { \
+ high = hi8; low = lo8; \
+ } else if (brw->gen >= 7) { \
+ high = hi7; low = lo7; \
+ } else if (brw->gen >= 6) { \
+ high = hi6; low = lo6; \
+ } else if (brw->gen >= 5) { \
+ high = hi5; low = lo5; \
+ } else if (brw->is_g4x) { \
+ high = hi45; low = lo45; \
+ } else { \
+ high = hi4; low = lo4; \
+ } \
+ assert(((int) high) != -1 && ((int) low) != -1); \
+
+/* A general macro for cases where the field has moved to several different
+ * bit locations across generations. GCC appears to combine cases where the
+ * bits are identical, removing some of the inefficiency.
+ */
+#define FF(name, hi4, lo4, hi45, lo45, hi5, lo5, hi6, lo6, hi7, lo7, hi8, lo8)\
+static inline void \
+brw_inst_set_##name(const struct brw_context *brw, \
+ struct brw_instruction *inst, uint64_t value) \
+{ \
+ BOUNDS(hi4, lo4, hi45, lo45, hi5, lo5, hi6, lo6, hi7, lo7, hi8, lo8) \
+ brw_inst_set_bits(inst, high, low, value); \
+} \
+static inline uint64_t \
+brw_inst_##name(const struct brw_context *brw, struct brw_instruction *inst) \
+{ \
+ BOUNDS(hi4, lo4, hi45, lo45, hi5, lo5, hi6, lo6, hi7, lo7, hi8, lo8) \
+ return brw_inst_bits(inst, high, low); \
+}
+
+/* A macro for fields which moved as of Gen8+. */
+#define F8(name, gen4_high, gen4_low, gen8_high, gen8_low) \
+FF(name, \
+ /* 4: */ gen4_high, gen4_low, \
+ /* 4.5: */ gen4_high, gen4_low, \
+ /* 5: */ gen4_high, gen4_low, \
+ /* 6: */ gen4_high, gen4_low, \
+ /* 7: */ gen4_high, gen4_low, \
+ /* 8: */ gen8_high, gen8_low);
+
+F(src1_vstride, 120, 117)
+F(src1_width, 116, 114)
+F(src1_da16_swiz_w, 115, 114)
+F(src1_da16_swiz_z, 113, 112)
+F(src1_hstride, 113, 112)
+F(src1_address_mode, 111, 111)
+/** Src1.SrcMod @{ */
+F(src1_negate, 110, 110)
+F(src1_abs, 109, 109)
+/** @} */
+F8(src1_ia_subreg_nr, /* 4+ */ 108, 106, /* 8+ */ 108, 105)
+F(src1_da_reg_nr, 108, 101)
+F(src1_da16_subreg_nr, 100, 100)
+F(src1_da1_subreg_nr, 100, 96)
+F(src1_da16_swiz_y, 99, 98)
+F(src1_da16_swiz_x, 97, 96)
+F8(src1_reg_type, /* 4+ */ 46, 44, /* 8+ */ 94, 91)
+F8(src1_reg_file, /* 4+ */ 43, 42, /* 8+ */ 90, 89)
+F(src0_vstride, 88, 85)
+F(src0_width, 84, 82)
+F(src0_da16_swiz_w, 83, 82)
+F(src0_da16_swiz_z, 81, 80)
+F(src0_hstride, 81, 80)
+F(src0_address_mode, 79, 79)
+/** Src0.SrcMod @{ */
+F(src0_negate, 78, 78)
+F(src0_abs, 77, 77)
+/** @} */
+F8(src0_ia_subreg_nr, /* 4+ */ 76, 74, /* 8+ */ 76, 73)
+F(src0_da_reg_nr, 76, 69)
+F(src0_da16_subreg_nr, 68, 68)
+F(src0_da1_subreg_nr, 68, 64)
+F(src0_da16_swiz_y, 67, 66)
+F(src0_da16_swiz_x, 65, 64)
+F(dst_address_mode, 63, 63)
+F(dst_hstride, 62, 61)
+F8(dst_ia_subreg_nr, /* 4+ */ 60, 58, /* 8+ */ 60, 57)
+F(dst_da_reg_nr, 60, 53)
+F(dst_da16_subreg_nr, 52, 52)
+F(dst_da1_subreg_nr, 52, 48)
+F(da16_writemask, 51, 48) /* Dst.ChanEn */
+F8(src0_reg_type, /* 4+ */ 41, 39, /* 8+ */ 46, 43)
+F8(src0_reg_file, /* 4+ */ 38, 37, /* 8+ */ 42, 41)
+F8(dst_reg_type, /* 4+ */ 36, 34, /* 8+ */ 40, 37)
+F8(dst_reg_file, /* 4+ */ 33, 32, /* 8+ */ 36, 35)
+F8(mask_control, /* 4+ */ 9, 9, /* 8+ */ 34, 34)
+FF(flag_reg_nr,
+ /* 4-6: doesn't exist */ -1, -1, -1, -1, -1, -1, -1, -1,
+ /* 7: */ 90, 90,
+ /* 8: */ 33, 33)
+F8(flag_subreg_nr, /* 4+ */ 89, 89, /* 8+ */ 32, 32)
+F(saturate, 31, 31)
+FC(branch_control, 30, 30, brw->gen >= 8)
+F(debug_control, 30, 30)
+F(cmpt_control, 29, 29)
+F(acc_wr_control, 28, 28)
+F(cond_modifier, 27, 24)
+FC(math_function, 27, 24, brw->gen >= 6)
+F(exec_size, 23, 21)
+F(pred_inv, 20, 20)
+F(pred_control, 19, 16)
+F(thread_control, 15, 14)
+F(qtr_control, 13, 12)
+FF(nib_control,
+ /* 4-6: doesn't exist */ -1, -1, -1, -1, -1, -1, -1, -1,
+ /* 7: */ 47, 47,
+ /* 8: */ 11, 11)
+F8(no_dd_check, /* 4+ */ 11, 11, /* 8+ */ 10, 10)
+F8(no_dd_clear, /* 4+ */ 10, 10, /* 8+ */ 9, 9)
+F(access_mode, 8, 8)
+/* Bit 7 is Reserved (for future Opcode expansion) */
+F(opcode, 6, 0)
+
+/**
+ * Three-source instructions:
+ * @{
+ */
+F(3src_src2_reg_nr, 125, 118)
+F(3src_src2_subreg_nr, 117, 115)
+F(3src_src2_swizzle, 114, 107)
+F(3src_src2_rep_ctrl, 106, 106)
+F(3src_src1_reg_nr, 104, 97)
+F(3src_src1_subreg_nr, 96, 94)
+F(3src_src1_swizzle, 93, 86)
+F(3src_src1_rep_ctrl, 85, 85)
+F(3src_src0_reg_nr, 83, 76)
+F(3src_src0_subreg_nr, 75, 73)
+F(3src_src0_swizzle, 72, 65)
+F(3src_src0_rep_ctrl, 64, 64)
+F(3src_dst_reg_nr, 63, 56)
+F(3src_dst_subreg_nr, 55, 53)
+F(3src_dst_writemask, 52, 49)
+F8(3src_dst_type, 45, 44, 48, 46) /* only exists on IVB+ */
+F8(3src_src_type, 43, 42, 45, 43)
+F8(3src_src2_negate, 41, 41, 42, 42)
+F8(3src_src2_abs, 40, 40, 41, 41)
+F8(3src_src1_negate, 39, 39, 40, 40)
+F8(3src_src1_abs, 38, 38, 39, 39)
+F8(3src_src0_negate, 37, 37, 38, 38)
+F8(3src_src0_abs, 36, 36, 37, 37)
+FF(3src_dst_reg_file,
+ /* 4-5: doesn't exist - no 3-source instructions */ -1, -1, -1, -1, -1, -1,
+ /* 6: */ 32, 32,
+ /* 7-8: doesn't exist - no MRFs */ -1, -1, -1, -1)
+/** @} */
+
+/**
+ * Flow control instruction bits:
+ * @{
+ */
+static inline void
+brw_inst_set_uip(const struct brw_context *brw,
+ struct brw_instruction *inst, int16_t value)
+{
+ BOUNDS(/* 4-5: doesn't exist */ -1, -1, -1, -1, -1, -1,
+ /* 6: */ 127, 112,
+ /* 7: */ 127, 112,
+ /* 8: */ 95, 64)
+ brw_inst_set_bits(inst, high, low, (uint64_t)value & 0xffff);
+}
+
+static inline int16_t
+brw_inst_uip(const struct brw_context *brw, struct brw_instruction *inst)
+{
+ BOUNDS(/* 4-5: doesn't exist */ -1, -1, -1, -1, -1, -1,
+ /* 6: */ 127, 112,
+ /* 7: */ 127, 112,
+ /* 8: */ 95, 64)
+ return brw_inst_bits(inst, high, low);
+}
+
+static inline void
+brw_inst_set_jip(const struct brw_context *brw,
+ struct brw_instruction *inst, int16_t value)
+{
+ BOUNDS(/* 4-5: doesn't exist */ -1, -1, -1, -1, -1, -1,
+ /* 6: */ 111, 96, /* only for break/continue */
+ /* 7: */ 111, 96,
+ /* 8: */ 127, 96)
+ brw_inst_set_bits(inst, high, low, (uint64_t)value & 0xffff);
+}
+
+static inline int16_t
+brw_inst_jip(const struct brw_context *brw, struct brw_instruction *inst)
+{
+ BOUNDS(/* 4-5: doesn't exist */ -1, -1, -1, -1, -1, -1,
+ /* 6: */ 111, 96, /* only for break/continue */
+ /* 7: */ 111, 96,
+ /* 8: */ 127, 96)
+ return brw_inst_bits(inst, high, low);
+}
+
+FC(gen6_jump_count, 63, 48, brw->gen == 6)
+FC(gen4_jump_count, 111, 96, brw->gen < 6)
+FC(gen4_pop_count, 115, 112, brw->gen < 6)
+/** @} */
+
+/**
+ * Fields for SEND messages:
+ * @{
+ */
+F(eot, 127, 127)
+FF(mlen,
+ /* 4: */ 119, 116,
+ /* 4.5: */ 119, 116,
+ /* 5: */ 124, 121,
+ /* 6: */ 124, 121,
+ /* 7: */ 124, 121,
+ /* 8: */ 124, 121);
+FF(rlen,
+ /* 4: */ 115, 112,
+ /* 4.5: */ 115, 112,
+ /* 5: */ 120, 116,
+ /* 6: */ 120, 116,
+ /* 7: */ 120, 116,
+ /* 8: */ 120, 116);
+FF(header_present,
+ /* 4: doesn't exist */ -1, -1, -1, -1,
+ /* 5: */ 115, 115,
+ /* 6: */ 115, 115,
+ /* 7: */ 115, 115,
+ /* 8: */ 115, 115)
+FF(function_control,
+ /* 4: */ 111, 96,
+ /* 4.5: */ 111, 96,
+ /* 5: */ 114, 96,
+ /* 6: */ 114, 96,
+ /* 7: */ 114, 96,
+ /* 8: */ 114, 96)
+FF(sfid,
+ /* 4: */ 123, 120, /* called msg_target */
+ /* 4.5 */ 123, 120,
+ /* 5: */ 95, 92,
+ /* 6: */ 95, 92,
+ /* 7: */ 27, 24,
+ /* 8: */ 27, 24)
+FC(base_mrf, 27, 24, brw->gen < 6);
+/** @} */
+
+/* Message descriptor bits */
+#define MD(x) (x + 96)
+
+/**
+ * URB message function control bits:
+ * @{
+ */
+FF(urb_per_slot_offset,
+ /* 4-6: */ -1, -1, -1, -1, -1, -1, -1, -1,
+ /* 7: */ MD(16), MD(16),
+ /* 8: */ MD(17), MD(17))
+FC(urb_complete, MD(15), MD(15), brw->gen < 8)
+FC(urb_used, MD(14), MD(14), brw->gen < 7)
+FC(urb_allocate, MD(13), MD(13), brw->gen < 7)
+FF(urb_swizzle_control,
+ /* 4: */ MD(11), MD(10),
+ /* 4.5: */ MD(11), MD(10),
+ /* 5: */ MD(11), MD(10),
+ /* 6: */ MD(11), MD(10),
+ /* 7: */ MD(14), MD(14),
+ /* 8: */ MD(15), MD(15))
+FF(urb_global_offset,
+ /* 4: */ MD( 9), MD(4),
+ /* 4.5: */ MD( 9), MD(4),
+ /* 5: */ MD( 9), MD(4),
+ /* 6: */ MD( 9), MD(4),
+ /* 7: */ MD(13), MD(3),
+ /* 8: */ MD(14), MD(4))
+FF(urb_opcode,
+ /* 4: */ MD( 3), MD(0),
+ /* 4.5: */ MD( 3), MD(0),
+ /* 5: */ MD( 3), MD(0),
+ /* 6: */ MD( 3), MD(0),
+ /* 7: */ MD( 2), MD(0),
+ /* 8: */ MD( 3), MD(0))
+/** @} */
+
+/**
+ * Gen4-5 math messages:
+ * @{
+ */
+FC(math_msg_data_type, MD(7), MD(7), brw->gen < 6)
+FC(math_msg_saturate, MD(6), MD(6), brw->gen < 6)
+FC(math_msg_precision, MD(5), MD(5), brw->gen < 6)
+FC(math_msg_signed_int, MD(4), MD(4), brw->gen < 6)
+FC(math_msg_function, MD(3), MD(0), brw->gen < 6)
+/** @} */
+
+/**
+ * Sampler message function control bits:
+ * @{
+ */
+FF(sampler_simd_mode,
+ /* 4: doesn't exist */ -1, -1, -1, -1,
+ /* 5: */ MD(17), MD(16),
+ /* 6: */ MD(17), MD(16),
+ /* 7: */ MD(18), MD(17),
+ /* 8: */ MD(18), MD(17))
+FF(sampler_msg_type,
+ /* 4: */ MD(15), MD(14),
+ /* 4.5: */ MD(15), MD(12),
+ /* 5: */ MD(15), MD(12),
+ /* 6: */ MD(15), MD(12),
+ /* 7: */ MD(16), MD(12),
+ /* 8: */ MD(16), MD(12))
+FC(sampler_return_format, MD(13), MD(12), brw->gen == 4 && !brw->is_g4x)
+F(sampler, MD(11), MD(8))
+F(binding_table_index, MD( 7), MD(0)) /* also used by other messages */
+/** @} */
+
+/**
+ * Data port message function control bits:
+ * @{
+ */
+FC(dp_category, MD(18), MD(18), brw->gen >= 7)
+
+/* Gen4-5 store fields in different bits for read/write messages. */
+FF(dp_read_msg_type,
+ /* 4: */ MD(13), MD(12),
+ /* 4.5: */ MD(13), MD(11),
+ /* 5: */ MD(13), MD(11),
+ /* 6: */ MD(16), MD(13),
+ /* 7: */ MD(17), MD(14),
+ /* 8: */ MD(17), MD(14))
+FF(dp_write_msg_type,
+ /* 4: */ MD(14), MD(12),
+ /* 4.5: */ MD(14), MD(12),
+ /* 5: */ MD(14), MD(12),
+ /* 6: */ MD(16), MD(13),
+ /* 7: */ MD(17), MD(14),
+ /* 8: */ MD(17), MD(14))
+FF(dp_read_msg_control,
+ /* 4: */ MD(11), MD( 8),
+ /* 4.5: */ MD(10), MD( 8),
+ /* 5: */ MD(10), MD( 8),
+ /* 6: */ MD(12), MD( 8),
+ /* 7: */ MD(13), MD( 8),
+ /* 8: */ MD(13), MD( 8))
+FF(dp_write_msg_control,
+ /* 4: */ MD(11), MD( 8),
+ /* 4.5: */ MD(11), MD( 8),
+ /* 5: */ MD(11), MD( 8),
+ /* 6: */ MD(12), MD( 8),
+ /* 7: */ MD(13), MD( 8),
+ /* 8: */ MD(13), MD( 8))
+FC(dp_read_target_cache, MD(15), MD(14), brw->gen < 6);
+
+FF(dp_write_commit,
+ /* 4: */ MD(15), MD(15),
+ /* 4.5: */ MD(15), MD(15),
+ /* 5: */ MD(15), MD(15),
+ /* 6: */ MD(17), MD(17),
+ /* 7+: does not exist */ -1, -1, -1, -1)
+
+/* Gen6+ use the same bit locations for everything. */
+FF(dp_msg_type,
+ /* 4-5: use dp_read_msg_type or dp_write_msg_type instead */
+ -1, -1, -1, -1, -1, -1,
+ /* 6: */ MD(16), MD(13),
+ /* 7: */ MD(17), MD(14),
+ /* 8: */ MD(17), MD(14))
+FF(dp_msg_control,
+ /* 4: */ MD(11), MD( 8),
+ /* 4.5-5: use dp_read_msg_control or dp_write_msg_control */ -1, -1, -1, -1,
+ /* 6: */ MD(12), MD( 8),
+ /* 7: */ MD(13), MD( 8),
+ /* 8: */ MD(13), MD( 8))
+/** @} */
+
+/**
+ * Scratch message bits (Gen7+):
+ * @{
+ */
+FC(scratch_read_write, MD(17), MD(17), brw->gen >= 7) /* 0 = read, 1 = write */
+FC(scratch_type, MD(16), MD(16), brw->gen >= 7) /* 0 = OWord, 1 = DWord */
+FC(scratch_invalidate_after_read, MD(15), MD(15), brw->gen >= 7)
+FC(scratch_block_size, MD(13), MD(12), brw->gen >= 7)
+FC(scratch_addr_offset, MD(11), MD( 0), brw->gen >= 7)
+/** @} */
+
+/**
+ * Render Target message function control bits:
+ * @{
+ */
+FF(rt_last,
+ /* 4: */ MD(11), MD(11),
+ /* 4.5: */ MD(11), MD(11),
+ /* 5: */ MD(11), MD(11),
+ /* 6: */ MD(12), MD(12),
+ /* 7: */ MD(12), MD(12),
+ /* 8: */ MD(12), MD(12))
+FC(rt_slot_group, MD(11), MD(11), brw->gen >= 6)
+F(rt_message_type, MD(10), MD( 8))
+/** @} */
+
+/**
+ * Thread Spawn message function control bits:
+ * @{
+ */
+F(ts_resource_select, MD( 4), MD( 4))
+F(ts_request_type, MD( 1), MD( 1))
+F(ts_opcode, MD( 0), MD( 0))
+/** @} */
+
+/**
+ * Immediates:
+ * @{
+ */
+static inline int
+brw_inst_imm_d(const struct brw_context *brw, struct brw_instruction *insn)
+{
+ return brw_inst_bits(insn, 127, 96);
+}
+
+static inline unsigned
+brw_inst_imm_ud(const struct brw_context *brw, struct brw_instruction *insn)
+{
+ return brw_inst_bits(insn, 127, 96);
+}
+
+static inline float
+brw_inst_imm_f(const struct brw_context *brw, struct brw_instruction *insn)
+{
+ fi_type ft;
+ ft.u = brw_inst_bits(insn, 127, 96);
+ return ft.f;
+}
+
+static inline void
+brw_inst_set_imm_d(const struct brw_context *brw,
+ struct brw_instruction *insn, int value)
+{
+ return brw_inst_set_bits(insn, 127, 96, value);
+}
+
+static inline void
+brw_inst_set_imm_ud(const struct brw_context *brw,
+ struct brw_instruction *insn, unsigned value)
+{
+ return brw_inst_set_bits(insn, 127, 96, value);
+}
+
+static inline void
+brw_inst_set_imm_f(const struct brw_context *brw,
+ struct brw_instruction *insn, float value)
+{
+ fi_type ft;
+ ft.f = value;
+ brw_inst_set_bits(insn, 127, 96, ft.u);
+}
+
+/** @} */
+
+/* The AddrImm fields are split into two discontiguous sections on Gen8+ */
+#define BRW_IA1_ADDR_IMM(reg, g4_high, g4_low, g8_nine, g8_high, g8_low) \
+static inline void \
+brw_inst_set_##reg##_ia1_addr_imm(const struct brw_context *brw, \
+ struct brw_instruction *inst, \
+ unsigned value) \
+{ \
+ assert((value & ~0x3ff) == 0); \
+ if (brw->gen >= 8) { \
+ brw_inst_set_bits(inst, g8_high, g8_low, value & 0x1ff); \
+ brw_inst_set_bits(inst, g8_nine, g8_nine, value >> 9); \
+ } else { \
+ brw_inst_set_bits(inst, g4_high, g4_low, value >> 9); \
+ } \
+} \
+static inline unsigned \
+brw_inst_##reg##_ia1_addr_imm(const struct brw_context *brw, \
+ struct brw_instruction *inst) \
+{ \
+ if (brw->gen >= 8) { \
+ return brw_inst_bits(inst, g8_high, g8_low) | \
+ (brw_inst_bits(inst, g8_nine, g8_nine) << 9); \
+ } else { \
+ return brw_inst_bits(inst, g4_high, g4_low); \
+ } \
+}
+
+/* AddrImm[9:0] for Align1 Indirect Addressing */
+/* -Gen 4- ----Gen8---- */
+BRW_IA1_ADDR_IMM(src1, 105, 96, 121, 104, 96)
+BRW_IA1_ADDR_IMM(src0, 73, 64, 95, 72, 64)
+BRW_IA1_ADDR_IMM(dst, 57, 48, 47, 56, 48)
+
+#define BRW_IA16_ADDR_IMM(reg, g4_high, g4_low, g8_nine, g8_high, g8_low) \
+static inline void \
+brw_inst_set_##reg##_ia16_addr_imm(const struct brw_context *brw, \
+ struct brw_instruction *inst, \
+ unsigned value) \
+{ \
+ assert((value & ~0x3ff) == 0); \
+ if (brw->gen >= 8) { \
+ brw_inst_set_bits(inst, g8_high, g8_low, value & 0x1ff); \
+ brw_inst_set_bits(inst, g8_nine, g8_nine, value >> 9); \
+ } else { \
+ brw_inst_set_bits(inst, g4_high, g4_low, value >> 9); \
+ } \
+} \
+static inline unsigned \
+brw_inst_##reg##_ia16_addr_imm(const struct brw_context *brw, \
+ struct brw_instruction *inst) \
+{ \
+ if (brw->gen >= 8) { \
+ return brw_inst_bits(inst, g8_high, g8_low) | \
+ (brw_inst_bits(inst, g8_nine, g8_nine) << 9); \
+ } else { \
+ return brw_inst_bits(inst, g4_high, g4_low); \
+ } \
+}
+
+/* AddrImm[9:0] for Align16 Indirect Addressing:
+ * Compared to Align1, these are missing the low 4 bits.
+ * -Gen 4- ----Gen8----
+ */
+BRW_IA16_ADDR_IMM(src1, 105, 96, 121, 104, 100)
+BRW_IA16_ADDR_IMM(src0, 73, 64, 95, 72, 68)
+BRW_IA16_ADDR_IMM(dst, 57, 52, 47, 56, 52)
+
+/**
+ * Fetch a set of contiguous bits from the instruction.
+ *
+ * Bits indices range from 0..127; fields may not cross 64-bit boundaries.
+ */
+static inline uint64_t
+brw_inst_bits(struct brw_instruction *insn, unsigned high, unsigned low)
+{
+ brw_inst *inst = (brw_inst *) insn;
+
+ /* We assume the field doesn't cross 64-bit boundaries. */
+ const unsigned word = high / 64;
+ assert(word == low / 64);
+
+ high %= 64;
+ low %= 64;
+
+ const uint64_t mask = (((1ull << (high - low + 1)) - 1) << low);
+
+ return (inst->data[word] & mask) >> low;
+}
+
+/**
+ * Set bits in the instruction, with proper shifting and masking.
+ *
+ * Bits indices range from 0..127; fields may not cross 64-bit boundaries.
+ */
+static inline void
+brw_inst_set_bits(struct brw_instruction *insn,
+ unsigned high, unsigned low,
+ uint64_t value)
+{
+ brw_inst *inst = (brw_inst *) insn;
+
+ const unsigned word = high / 64;
+ assert(word == low / 64);
+
+ high %= 64;
+ low %= 64;
+
+ const uint64_t mask = (((1ull << (high - low + 1)) - 1) << low);
+
+ /* Make sure the supplied value actually fits in the given bitfield. */
+ assert((value & (mask >> low)) == value);
+
+ inst->data[word] = (inst->data[word] & ~mask) | ((value << low) & mask);
+}
+
+#undef BRW_IA16_ADDR_IMM
+#undef BRW_IA1_ADDR_IMM
+#undef MD
+#undef F8
+#undef FF
+#undef BOUNDS
+#undef F
+#undef FC
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--
1.8.3.2
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