[Mesa-dev] [PATCH 4/8] i965: Implement a disassembler for Broadwell's new instruction encoding
Chris Forbes
chrisf at ijw.co.nz
Wed Dec 11 12:21:39 PST 2013
Commit messages need updating to match having ported this stuff to C.
On Wed, Dec 11, 2013 at 8:25 PM, Kenneth Graunke <kenneth at whitecape.org> wrote:
> Heavily based on Keith Packard's existing brw_disasm.c code. I've tried
> to go through most of the pieces (like SFIDs) and update the lists to
> include features added in recent generations.
>
> I had to use C++ since my new instruction representation requires it.
> Unfortunately, C++98 doesn't allow the use of C99 array initializers,
> which makes the arrays mapping values to strings harder to read. I
> tried to compensate for this failing by adding additional comments.
>
> The disassembly can definitely be improved, but this should at least
> get INTEL_DEBUG=vs/fs working.
>
> Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
> ---
> src/mesa/drivers/dri/i965/Makefile.sources | 1 +
> src/mesa/drivers/dri/i965/gen8_disasm.c | 911 +++++++++++++++++++++++++++++
> 2 files changed, 912 insertions(+)
> create mode 100644 src/mesa/drivers/dri/i965/gen8_disasm.c
>
> diff --git a/src/mesa/drivers/dri/i965/Makefile.sources b/src/mesa/drivers/dri/i965/Makefile.sources
> index be25981..4c629cc 100644
> --- a/src/mesa/drivers/dri/i965/Makefile.sources
> +++ b/src/mesa/drivers/dri/i965/Makefile.sources
> @@ -139,5 +139,6 @@ i965_FILES = \
> gen7_vs_state.c \
> gen7_wm_state.c \
> gen7_wm_surface_state.c \
> + gen8_disasm.c \
> gen8_instruction.c \
> $()
> diff --git a/src/mesa/drivers/dri/i965/gen8_disasm.c b/src/mesa/drivers/dri/i965/gen8_disasm.c
> new file mode 100644
> index 0000000..c649fe7
> --- /dev/null
> +++ b/src/mesa/drivers/dri/i965/gen8_disasm.c
> @@ -0,0 +1,911 @@
> +/*
> + * Copyright © 2008 Keith Packard
> + * Copyright © 2009-2013 Intel Corporation
> + *
> + * Permission to use, copy, modify, distribute, and sell this software and its
> + * documentation for any purpose is hereby granted without fee, provided that
> + * the above copyright notice appear in all copies and that both that copyright
> + * notice and this permission notice appear in supporting documentation, and
> + * that the name of the copyright holders not be used in advertising or
> + * publicity pertaining to distribution of the software without specific,
> + * written prior permission. The copyright holders make no representations
> + * about the suitability of this software for any purpose. It is provided "as
> + * is" without express or implied warranty.
> + *
> + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
> + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
> + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
> + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
> + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
> + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
> + * OF THIS SOFTWARE.
> + */
> +
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <getopt.h>
> +#include <unistd.h>
> +#include <stdarg.h>
> +
> +#include "brw_context.h"
> +#include "brw_defines.h"
> +#include "gen8_instruction.h"
> +
> +static const struct opcode_desc *m_opcode = opcode_descs;
> +
> +static const char *const m_conditional_modifier[16] = {
> + [BRW_CONDITIONAL_NONE] = "",
> + [BRW_CONDITIONAL_Z] = ".e",
> + [BRW_CONDITIONAL_NZ] = ".ne",
> + [BRW_CONDITIONAL_G] = ".g",
> + [BRW_CONDITIONAL_GE] = ".ge",
> + [BRW_CONDITIONAL_L] = ".l",
> + [BRW_CONDITIONAL_LE] = ".le",
> + [BRW_CONDITIONAL_O] = ".o",
> + [BRW_CONDITIONAL_U] = ".u",
> +};
> +
> +static const char *const m_negate[2] = { "", "-" };
> +
> +static const char *const m_abs[2] = { "", "(abs)" };
> +
> +static const char *const m_vert_stride[16] = {
> + "0",
> + "1",
> + "2",
> + "4",
> + "8",
> + "16",
> + "32",
> +};
> +
> +static const char *const width[8] = {
> + "1",
> + "2",
> + "4",
> + "8",
> + "16",
> +};
> +
> +static const char *const m_horiz_stride[4] = {
> + "0",
> + "1",
> + "2",
> + "4"
> +};
> +
> +static const char *const m_chan_sel[4] = { "x", "y", "z", "w" };
> +
> +static const char *const m_debug_ctrl[2] = { "", ".breakpoint" };
> +
> +static const char *const m_saturate[2] = { "", ".sat" };
> +
> +static const char *const m_accwr[2] = { "", "AccWrEnable" };
> +
> +static const char *const m_maskctrl[2] = { "WE_normal", "WE_all" };
> +
> +static const char *const m_exec_size[8] = {
> + "1",
> + "2",
> + "4",
> + "8",
> + "16",
> + "32",
> +};
> +
> +static const char *const m_pred_inv[2] = { "+", "-" };
> +
> +static const char *const m_pred_ctrl_align16[16] = {
> + "",
> + "",
> + ".x",
> + ".y",
> + ".z",
> + ".w",
> + ".any4h",
> + ".all4h",
> +};
> +
> +static const char *const m_pred_ctrl_align1[16] = {
> + "",
> + "",
> + ".anyv",
> + ".allv",
> + ".any2h",
> + ".all2h",
> + ".any4h",
> + ".all4h",
> + ".any8h",
> + ".all8h",
> + ".any16h",
> + ".all16h",
> + ".any32h",
> + ".all32h",
> +};
> +
> +static const char *const m_thread_ctrl[4] = {
> + "",
> + "atomic",
> + "switch",
> +};
> +
> +static const char *const m_dep_clear[4] = {
> + "",
> + "NoDDClr",
> +};
> +
> +static const char *const m_dep_check[4] = {
> + "",
> + "NoDDChk",
> +};
> +
> +static const char *const m_mask_ctrl[4] = {
> + "",
> + "nomask",
> +};
> +
> +static const char *const m_access_mode[2] = { "align1", "align16" };
> +
> +static const char *const m_reg_type[8] = {
> + [BRW_REGISTER_TYPE_UD] = "UD",
> + [BRW_REGISTER_TYPE_D] = "D",
> + [BRW_REGISTER_TYPE_UW] = "UW",
> + [BRW_REGISTER_TYPE_W] = "W",
> + [BRW_REGISTER_TYPE_UB] = "UB",
> + [BRW_REGISTER_TYPE_B] = "B",
> + [BRW_REGISTER_TYPE_DF] = "DF",
> + [BRW_REGISTER_TYPE_F] = "F",
> +};
> +
> +static const int reg_type_size[8] = {
> + [BRW_REGISTER_TYPE_UD] = 4,
> + [BRW_REGISTER_TYPE_D] = 4,
> + [BRW_REGISTER_TYPE_UW] = 2,
> + [BRW_REGISTER_TYPE_W] = 2,
> + [BRW_REGISTER_TYPE_UB] = 1,
> + [BRW_REGISTER_TYPE_B] = 1,
> + [BRW_REGISTER_TYPE_DF] = 8,
> + [BRW_REGISTER_TYPE_F] = 4,
> +};
> +
> +static const char *const m_reg_file[4] = {
> + [BRW_ARCHITECTURE_REGISTER_FILE] = "A",
> + [BRW_GENERAL_REGISTER_FILE] = "g",
> + [3] = "imm",
> +};
> +
> +static const char *const m_writemask[16] = {
> + ".(none)",
> + ".x",
> + ".y",
> + ".xy",
> + ".z",
> + ".xz",
> + ".yz",
> + ".xyz",
> + ".w",
> + ".xw",
> + ".yw",
> + ".xyw",
> + ".zw",
> + ".xzw",
> + ".yzw",
> + "",
> +};
> +
> +static const char *const m_eot[2] = { "", "EOT" };
> +
> +static const char *const m_sfid[16] = {
> + [BRW_SFID_NULL] = "null",
> + [BRW_SFID_SAMPLER] = "sampler",
> + [BRW_SFID_MESSAGE_GATEWAY] = "gateway",
> + [GEN6_SFID_DATAPORT_SAMPLER_CACHE] = "dp/sampler_cache",
> + [GEN6_SFID_DATAPORT_RENDER_CACHE] = "dp/render_cache",
> + [BRW_SFID_URB] = "URB",
> + [BRW_SFID_THREAD_SPAWNER] = "thread_spawner",
> + [BRW_SFID_VME] = "vme",
> + [GEN6_SFID_DATAPORT_CONSTANT_CACHE] = "dp/constant_cache",
> + [GEN7_SFID_DATAPORT_DATA_CACHE] = "dp/data_cache",
> + [GEN7_SFID_PI] = "pi",
> + [HSW_SFID_DATAPORT_DATA_CACHE_1] = "dp/data_cache:1",
> + [HSW_SFID_CRE] = "cre",
> +};
> +
> +static const char *const m_math_function[16] = {
> + [BRW_MATH_FUNCTION_INV] = "inv",
> + [BRW_MATH_FUNCTION_LOG] = "log",
> + [BRW_MATH_FUNCTION_EXP] = "exp",
> + [BRW_MATH_FUNCTION_SQRT] = "sqrt",
> + [BRW_MATH_FUNCTION_RSQ] = "rsq",
> + [BRW_MATH_FUNCTION_SIN] = "sin",
> + [BRW_MATH_FUNCTION_COS] = "cos",
> + [BRW_MATH_FUNCTION_FDIV] = "fdiv",
> + [BRW_MATH_FUNCTION_POW] = "pow",
> + [BRW_MATH_FUNCTION_INT_DIV_QUOTIENT_AND_REMAINDER] = "intdivmod",
> + [BRW_MATH_FUNCTION_INT_DIV_QUOTIENT] = "intdiv",
> + [BRW_MATH_FUNCTION_INT_DIV_REMAINDER] = "intmod",
> + [GEN8_MATH_FUNCTION_INVM] = "invm",
> + [GEN8_MATH_FUNCTION_RSQRTM] = "rsqrtm",
> +};
> +
> +static const char *const m_urb_opcode[16] = {
> + [0] = "write HWord",
> + [1] = "write OWord",
> + [2] = "read HWord",
> + [3] = "read OWord",
> + [4] = "atomic mov",
> + [5] = "atomic inc",
> + [6] = "atomic add",
> + [7] = "SIMD8 write",
> + [8] = "SIMD8 read",
> + /* [9-15] - reserved */
> +};
> +
> +static const char *const m_urb_interleave[2] = { "", "interleaved" };
> +
> +static int column;
> +
> +static int
> +string(FILE *file, const char *string)
> +{
> + fputs(string, file);
> + column += strlen(string);
> + return 0;
> +}
> +
> +static int
> +format(FILE *f, const char *format, ...)
> +{
> + char buf[1024];
> + va_list args;
> + va_start(args, format);
> +
> + vsnprintf(buf, sizeof(buf) - 1, format, args);
> + va_end(args);
> + string(f, buf);
> + return 0;
> +}
> +
> +static int
> +newline(FILE *f)
> +{
> + putc('\n', f);
> + column = 0;
> + return 0;
> +}
> +
> +static int
> +pad(FILE *f, int c)
> +{
> + do
> + string(f, " ");
> + while (column < c);
> + return 0;
> +}
> +
> +static int
> +control(FILE *file, const char *name, const char *const ctrl[],
> + unsigned id, int *space)
> +{
> + if (!ctrl[id]) {
> + fprintf(file, "*** invalid %s value %d ", name, id);
> + return 1;
> + }
> + if (ctrl[id][0]) {
> + if (space && *space)
> + string(file, " ");
> + string(file, ctrl[id]);
> + if (space)
> + *space = 1;
> + }
> + return 0;
> +}
> +
> +static int
> +print_opcode(FILE *file, int id)
> +{
> + if (!m_opcode[id].name) {
> + format(file, "*** invalid opcode value %d ", id);
> + return 1;
> + }
> + string(file, m_opcode[id].name);
> + return 0;
> +}
> +
> +static int
> +three_source_type_to_reg_type(int three_source_type)
> +{
> + switch (three_source_type) {
> + case BRW_3SRC_TYPE_F:
> + return BRW_REGISTER_TYPE_F;
> + case BRW_3SRC_TYPE_D:
> + return BRW_REGISTER_TYPE_D;
> + case BRW_3SRC_TYPE_UD:
> + return BRW_REGISTER_TYPE_UD;
> + }
> + return -1;
> +}
> +
> +static int
> +reg(FILE *file, unsigned reg_file, unsigned _reg_nr)
> +{
> + int err = 0;
> +
> + if (reg_file == BRW_ARCHITECTURE_REGISTER_FILE) {
> + switch (_reg_nr & 0xf0) {
> + case BRW_ARF_NULL:
> + string(file, "null");
> + return -1;
> + case BRW_ARF_ADDRESS:
> + format(file, "a%d", _reg_nr & 0x0f);
> + break;
> + case BRW_ARF_ACCUMULATOR:
> + format(file, "acc%d", _reg_nr & 0x0f);
> + break;
> + case BRW_ARF_FLAG:
> + format(file, "f%d", _reg_nr & 0x0f);
> + break;
> + case BRW_ARF_MASK:
> + format(file, "mask%d", _reg_nr & 0x0f);
> + break;
> + case BRW_ARF_MASK_STACK:
> + format(file, "msd%d", _reg_nr & 0x0f);
> + break;
> + case BRW_ARF_STATE:
> + format(file, "sr%d", _reg_nr & 0x0f);
> + break;
> + case BRW_ARF_CONTROL:
> + format(file, "cr%d", _reg_nr & 0x0f);
> + break;
> + case BRW_ARF_NOTIFICATION_COUNT:
> + format(file, "n%d", _reg_nr & 0x0f);
> + break;
> + case BRW_ARF_IP:
> + string(file, "ip");
> + return -1;
> + break;
> + default:
> + format(file, "ARF%d", _reg_nr);
> + break;
> + }
> + } else {
> + err |= control(file, "src reg file", m_reg_file, reg_file, NULL);
> + format(file, "%d", _reg_nr);
> + }
> + return err;
> +}
> +
> +static int
> +dest(FILE *file, struct gen8_instruction *inst)
> +{
> + int err = 0;
> +
> + if (gen8_access_mode(inst) == BRW_ALIGN_1) {
> + assert(gen8_dst_address_mode(inst) == BRW_ADDRESS_DIRECT);
> + err |= reg(file, gen8_dst_reg_file(inst), gen8_dst_da_reg_nr(inst));
> + if (err == -1)
> + return 0;
> + if (gen8_dst_da1_subreg_nr(inst))
> + format(file, ".%d", gen8_dst_da1_subreg_nr(inst) /
> + reg_type_size[gen8_dst_reg_type(inst)]);
> + string(file, "<");
> + err |= control(file, "horiz stride", m_horiz_stride, gen8_dst_da1_hstride(inst), NULL);
> + string(file, ">");
> + err |= control(file, "dest reg encoding", m_reg_type, gen8_dst_reg_type(inst), NULL);
> + } else {
> + assert(gen8_dst_address_mode(inst) == BRW_ADDRESS_DIRECT);
> + err |= reg(file, gen8_dst_reg_file(inst), gen8_dst_da_reg_nr(inst));
> + if (err == -1)
> + return 0;
> + if (gen8_dst_da16_subreg_nr(inst))
> + format(file, ".%d", gen8_dst_da16_subreg_nr(inst) /
> + reg_type_size[gen8_dst_reg_type(inst)]);
> + string(file, "<1>");
> + err |= control(file, "writemask", m_writemask, gen8_da16_writemask(inst), NULL);
> + err |= control(file, "dest reg encoding", m_reg_type, gen8_dst_reg_type(inst), NULL);
> + }
> +
> + return 0;
> +}
> +
> +static int
> +dest_3src(FILE *file, struct gen8_instruction *inst)
> +{
> + int err = 0;
> +
> + err |= reg(file, BRW_GENERAL_REGISTER_FILE, gen8_dst_3src_reg_nr(inst));
> + if (err == -1)
> + return 0;
> + if (gen8_dst_3src_subreg_nr(inst))
> + format(file, ".%d", gen8_dst_3src_subreg_nr(inst));
> + string(file, "<1>");
> + err |= control(file, "writemask", m_writemask, gen8_dst_3src_writemask(inst),
> + NULL);
> + err |= control(file, "dest reg encoding", m_reg_type,
> + three_source_type_to_reg_type(gen8_dst_3src_type(inst)), NULL);
> +
> + return 0;
> +}
> +
> +static int
> +src_align1_region(FILE *file, unsigned vert_stride, unsigned _width,
> + unsigned horiz_stride)
> +{
> + int err = 0;
> + string(file, "<");
> + err |= control(file, "vert stride", m_vert_stride, vert_stride, NULL);
> + string(file, ",");
> + err |= control(file, "width", width, _width, NULL);
> + string(file, ",");
> + err |= control(file, "horiz_stride", m_horiz_stride, horiz_stride, NULL);
> + string(file, ">");
> + return err;
> +}
> +
> +static int
> +src_swizzle(FILE *file, unsigned x, unsigned y, unsigned z, unsigned w)
> +{
> + int err = 0;
> +
> + /* Three kinds of swizzle display:
> + * - identity - nothing printed
> + * - 1->all - print the single channel
> + * - 1->1 - print the mapping
> + */
> + if (x == BRW_CHANNEL_X &&
> + y == BRW_CHANNEL_Y &&
> + z == BRW_CHANNEL_Z &&
> + w == BRW_CHANNEL_W) {
> + ; /* Print nothing */
> + } else if (x == y && x == z && x == w) {
> + string(file, ".");
> + err |= control(file, "channel select", m_chan_sel, x, NULL);
> + } else {
> + string(file, ".");
> + err |= control(file, "channel select", m_chan_sel, x, NULL);
> + err |= control(file, "channel select", m_chan_sel, y, NULL);
> + err |= control(file, "channel select", m_chan_sel, z, NULL);
> + err |= control(file, "channel select", m_chan_sel, w, NULL);
> + }
> + return err;
> +}
> +
> +static int
> +src_da1(FILE *file, unsigned type, unsigned reg_file,
> + unsigned vert_stride, unsigned _width, unsigned horiz_stride,
> + unsigned reg_num, unsigned sub_reg_num, unsigned _abs, unsigned negate)
> +{
> + int err = 0;
> + err |= control(file, "negate", m_negate, negate, NULL);
> + err |= control(file, "abs", m_abs, _abs, NULL);
> +
> + err |= reg(file, reg_file, reg_num);
> + if (err == -1)
> + return 0;
> + if (sub_reg_num)
> + format(file, ".%d", sub_reg_num / reg_type_size[type]); /* use formal style like spec */
> + src_align1_region(file, vert_stride, _width, horiz_stride);
> + err |= control(file, "src reg encoding", m_reg_type, type, NULL);
> + return err;
> +}
> +
> +static int
> +src_da16(FILE *file,
> + unsigned _reg_type,
> + unsigned reg_file,
> + unsigned vert_stride,
> + unsigned _reg_nr,
> + unsigned _subreg_nr,
> + unsigned _abs,
> + unsigned negate,
> + unsigned swz_x,
> + unsigned swz_y,
> + unsigned swz_z,
> + unsigned swz_w)
> +{
> + int err = 0;
> + err |= control(file, "negate", m_negate, negate, NULL);
> + err |= control(file, "abs", m_abs, _abs, NULL);
> +
> + err |= reg(file, reg_file, _reg_nr);
> + if (err == -1)
> + return 0;
> + if (_subreg_nr)
> + /* bit4 for subreg number byte addressing. Make this same meaning as
> + * in da1 case, so output looks consistent.
> + */
> + format(file, ".%d", 16 / reg_type_size[_reg_type]);
> + string(file, "<");
> + err |= control(file, "vert stride", m_vert_stride, vert_stride, NULL);
> + string(file, ",4,1>");
> + /*
> + * Three kinds of swizzle display:
> + * identity - nothing printed
> + * 1->all - print the single channel
> + * 1->1 - print the mapping
> + */
> + if (swz_x == BRW_CHANNEL_X &&
> + swz_y == BRW_CHANNEL_Y &&
> + swz_z == BRW_CHANNEL_Z &&
> + swz_w == BRW_CHANNEL_W) {
> + ; /* Print nothing */
> + } else if (swz_x == swz_y && swz_x == swz_z && swz_x == swz_w) {
> + string(file, ".");
> + err |= control(file, "channel select", m_chan_sel, swz_x, NULL);
> + } else {
> + string(file, ".");
> + err |= control(file, "channel select", m_chan_sel, swz_x, NULL);
> + err |= control(file, "channel select", m_chan_sel, swz_y, NULL);
> + err |= control(file, "channel select", m_chan_sel, swz_z, NULL);
> + err |= control(file, "channel select", m_chan_sel, swz_w, NULL);
> + }
> + err |= control(file, "src da16 reg type", m_reg_type, _reg_type, NULL);
> + return err;
> +}
> +
> +static int
> +src0_3src(FILE *file, struct gen8_instruction *inst)
> +{
> + int err = 0;
> + unsigned swiz = gen8_src0_3src_swizzle(inst);
> + unsigned swz_x = (swiz >> 0) & 0x3;
> + unsigned swz_y = (swiz >> 2) & 0x3;
> + unsigned swz_z = (swiz >> 4) & 0x3;
> + unsigned swz_w = (swiz >> 6) & 0x3;
> +
> + err |= control(file, "negate", m_negate, gen8_src0_3src_negate(inst), NULL);
> + err |= control(file, "abs", m_abs, gen8_src0_3src_abs(inst), NULL);
> +
> + err |= reg(file, BRW_GENERAL_REGISTER_FILE, gen8_src0_3src_reg_nr(inst));
> + if (err == -1)
> + return 0;
> + if (gen8_src0_3src_subreg_nr(inst))
> + format(file, ".%d", gen8_src0_3src_subreg_nr(inst));
> + string(file, "<4,1,1>");
> + err |= control(file, "src da16 reg type", m_reg_type,
> + three_source_type_to_reg_type(gen8_src_3src_type(inst)), NULL);
> + err |= src_swizzle(file, swz_x, swz_y, swz_z, swz_w);
> + return err;
> +}
> +
> +static int
> +src1_3src(FILE *file, struct gen8_instruction *inst)
> +{
> + int err = 0;
> + unsigned swiz = gen8_src1_3src_swizzle(inst);
> + unsigned swz_x = (swiz >> 0) & 0x3;
> + unsigned swz_y = (swiz >> 2) & 0x3;
> + unsigned swz_z = (swiz >> 4) & 0x3;
> + unsigned swz_w = (swiz >> 6) & 0x3;
> + unsigned src1_subreg_nr = gen8_src1_3src_subreg_nr(inst);
> +
> + err |= control(file, "negate", m_negate, gen8_src1_3src_negate(inst), NULL);
> + err |= control(file, "abs", m_abs, gen8_src1_3src_abs(inst), NULL);
> +
> + err |= reg(file, BRW_GENERAL_REGISTER_FILE, gen8_src1_3src_reg_nr(inst));
> + if (err == -1)
> + return 0;
> + if (src1_subreg_nr)
> + format(file, ".%d", src1_subreg_nr);
> + string(file, "<4,1,1>");
> + err |= control(file, "src da16 reg type", m_reg_type,
> + three_source_type_to_reg_type(gen8_src_3src_type(inst)), NULL);
> + err |= src_swizzle(file, swz_x, swz_y, swz_z, swz_w);
> + return err;
> +}
> +
> +static int
> +src2_3src(FILE *file, struct gen8_instruction *inst)
> +{
> + int err = 0;
> + unsigned swiz = gen8_src2_3src_swizzle(inst);
> + unsigned swz_x = (swiz >> 0) & 0x3;
> + unsigned swz_y = (swiz >> 2) & 0x3;
> + unsigned swz_z = (swiz >> 4) & 0x3;
> + unsigned swz_w = (swiz >> 6) & 0x3;
> +
> + err |= control(file, "negate", m_negate, gen8_src2_3src_negate(inst), NULL);
> + err |= control(file, "abs", m_abs, gen8_src2_3src_abs(inst), NULL);
> +
> + err |= reg(file, BRW_GENERAL_REGISTER_FILE, gen8_src2_3src_reg_nr(inst));
> + if (err == -1)
> + return 0;
> + if (gen8_src2_3src_subreg_nr(inst))
> + format(file, ".%d", gen8_src2_3src_subreg_nr(inst));
> + string(file, "<4,1,1>");
> + err |= control(file, "src da16 reg type", m_reg_type,
> + three_source_type_to_reg_type(gen8_src_3src_type(inst)), NULL);
> + err |= src_swizzle(file, swz_x, swz_y, swz_z, swz_w);
> + return err;
> +}
> +
> +static int
> +imm(FILE *file, unsigned type, struct gen8_instruction *inst)
> +{
> + switch (type) {
> + case BRW_REGISTER_TYPE_UD:
> + format(file, "0x%08xUD", gen8_src1_imm_ud(inst));
> + break;
> + case BRW_REGISTER_TYPE_D:
> + format(file, "%dD", (int) gen8_src1_imm_d(inst));
> + break;
> + case BRW_REGISTER_TYPE_UW:
> + format(file, "0x%04xUW", (uint16_t) gen8_src1_imm_ud(inst));
> + break;
> + case BRW_REGISTER_TYPE_W:
> + format(file, "%dW", (int16_t) gen8_src1_imm_d(inst));
> + break;
> + case BRW_REGISTER_TYPE_UB:
> + format(file, "0x%02xUB", (int8_t) gen8_src1_imm_ud(inst));
> + break;
> + case BRW_REGISTER_TYPE_VF:
> + format(file, "Vector Float");
> + break;
> + case BRW_REGISTER_TYPE_V:
> + format(file, "0x%08xV", gen8_src1_imm_ud(inst));
> + break;
> + case BRW_REGISTER_TYPE_F:
> + format(file, "%-gF", gen8_src1_imm_f(inst));
> + }
> + return 0;
> +}
> +
> +static int
> +src0(FILE *file, struct gen8_instruction *inst)
> +{
> + if (gen8_src0_reg_file(inst) == BRW_IMMEDIATE_VALUE)
> + return imm(file, gen8_src0_reg_type(inst), inst);
> +
> + if (gen8_access_mode(inst) == BRW_ALIGN_1) {
> + assert(gen8_src0_address_mode(inst) == BRW_ADDRESS_DIRECT);
> + return src_da1(file,
> + gen8_src0_reg_type(inst),
> + gen8_src0_reg_file(inst),
> + gen8_src0_vert_stride(inst),
> + gen8_src0_da1_width(inst),
> + gen8_src0_da1_hstride(inst),
> + gen8_src0_da_reg_nr(inst),
> + gen8_src0_da1_subreg_nr(inst),
> + gen8_src0_abs(inst),
> + gen8_src0_negate(inst));
> + } else {
> + assert(gen8_src0_address_mode(inst) == BRW_ADDRESS_DIRECT);
> + return src_da16(file,
> + gen8_src0_reg_type(inst),
> + gen8_src0_reg_file(inst),
> + gen8_src0_vert_stride(inst),
> + gen8_src0_da_reg_nr(inst),
> + gen8_src0_da16_subreg_nr(inst),
> + gen8_src0_abs(inst),
> + gen8_src0_negate(inst),
> + gen8_src0_da16_swiz_x(inst),
> + gen8_src0_da16_swiz_y(inst),
> + gen8_src0_da16_swiz_z(inst),
> + gen8_src0_da16_swiz_w(inst));
> + }
> +}
> +
> +static int
> +src1(FILE *file, struct gen8_instruction *inst)
> +{
> + if (gen8_src1_reg_file(inst) == BRW_IMMEDIATE_VALUE)
> + return imm(file, gen8_src1_reg_type(inst), inst);
> +
> + if (gen8_access_mode(inst) == BRW_ALIGN_1) {
> + assert(gen8_src1_address_mode(inst) == BRW_ADDRESS_DIRECT);
> + return src_da1(file,
> + gen8_src1_reg_type(inst),
> + gen8_src1_reg_file(inst),
> + gen8_src1_vert_stride(inst),
> + gen8_src1_da1_width(inst),
> + gen8_src1_da1_hstride(inst),
> + gen8_src1_da_reg_nr(inst),
> + gen8_src1_da1_subreg_nr(inst),
> + gen8_src1_abs(inst),
> + gen8_src1_negate(inst));
> + } else {
> + assert(gen8_src1_address_mode(inst) == BRW_ADDRESS_DIRECT);
> + return src_da16(file,
> + gen8_src1_reg_type(inst),
> + gen8_src1_reg_file(inst),
> + gen8_src1_vert_stride(inst),
> + gen8_src1_da_reg_nr(inst),
> + gen8_src1_da16_subreg_nr(inst),
> + gen8_src1_abs(inst),
> + gen8_src1_negate(inst),
> + gen8_src1_da16_swiz_x(inst),
> + gen8_src1_da16_swiz_y(inst),
> + gen8_src1_da16_swiz_z(inst),
> + gen8_src1_da16_swiz_w(inst));
> + }
> +}
> +
> +static int esize[6] = { 1, 2, 4, 8, 16, 32 };
> +
> +static int
> +qtr_ctrl(FILE *file, struct gen8_instruction *inst)
> +{
> + int qtr_ctl = gen8_qtr_control(inst);
> + int exec_size = esize[gen8_exec_size(inst)];
> +
> + if (exec_size == 8) {
> + switch (qtr_ctl) {
> + case 0:
> + string(file, " 1Q");
> + break;
> + case 1:
> + string(file, " 2Q");
> + break;
> + case 2:
> + string(file, " 3Q");
> + break;
> + case 3:
> + string(file, " 4Q");
> + break;
> + }
> + } else if (exec_size == 16) {
> + if (qtr_ctl < 2)
> + string(file, " 1H");
> + else
> + string(file, " 2H");
> + }
> + return 0;
> +}
> +
> +int
> +gen8_disassemble(FILE *file, struct gen8_instruction *inst, int gen)
> +{
> + int err = 0;
> + int space = 0;
> +
> + const int opcode = gen8_opcode(inst);
> +
> + if (gen8_pred_control(inst)) {
> + string(file, "(");
> + err |= control(file, "predicate inverse", m_pred_inv, gen8_pred_inv(inst), NULL);
> + format(file, "f%d", gen8_flag_reg_nr(inst));
> + if (gen8_flag_subreg_nr(inst))
> + format(file, ".%d", gen8_flag_subreg_nr(inst));
> + if (gen8_access_mode(inst) == BRW_ALIGN_1) {
> + err |= control(file, "predicate control align1", m_pred_ctrl_align1,
> + gen8_pred_control(inst), NULL);
> + } else {
> + err |= control(file, "predicate control align16", m_pred_ctrl_align16,
> + gen8_pred_control(inst), NULL);
> + }
> + string(file, ") ");
> + }
> +
> + err |= print_opcode(file, opcode);
> + err |= control(file, "saturate", m_saturate, gen8_saturate(inst), NULL);
> + err |= control(file, "debug control", m_debug_ctrl, gen8_debug_control(inst), NULL);
> +
> + if (opcode == BRW_OPCODE_MATH) {
> + string(file, " ");
> + err |= control(file, "function", m_math_function, gen8_math_function(inst),
> + NULL);
> + } else if (opcode != BRW_OPCODE_SEND && opcode != BRW_OPCODE_SENDC) {
> + err |= control(file, "conditional modifier", m_conditional_modifier,
> + gen8_cond_modifier(inst), NULL);
> +
> + /* If we're using the conditional modifier, print the flag reg used. */
> + if (gen8_cond_modifier(inst) && opcode != BRW_OPCODE_SEL) {
> + format(file, ".f%d", gen8_flag_reg_nr(inst));
> + if (gen8_flag_subreg_nr(inst))
> + format(file, ".%d", gen8_flag_subreg_nr(inst));
> + }
> + }
> +
> + if (opcode != BRW_OPCODE_NOP) {
> + string(file, "(");
> + err |= control(file, "execution size", m_exec_size, gen8_exec_size(inst), NULL);
> + string(file, ")");
> + }
> +
> + if (m_opcode[opcode].nsrc == 3) {
> + pad(file, 16);
> + err |= dest_3src(file, inst);
> +
> + pad(file, 32);
> + err |= src0_3src(file, inst);
> +
> + pad(file, 48);
> + err |= src1_3src(file, inst);
> +
> + pad(file, 64);
> + err |= src2_3src(file, inst);
> + } else {
> + if (m_opcode[opcode].ndst > 0) {
> + pad(file, 16);
> + err |= dest(file, inst);
> + } else if (opcode == BRW_OPCODE_ENDIF) {
> + format(file, " %d", gen8_jip(inst));
> + } else if (opcode == BRW_OPCODE_IF ||
> + opcode == BRW_OPCODE_ELSE ||
> + opcode == BRW_OPCODE_WHILE ||
> + opcode == BRW_OPCODE_BREAK ||
> + opcode == BRW_OPCODE_CONTINUE ||
> + opcode == BRW_OPCODE_HALT) {
> + format(file, " %d %d", gen8_jip(inst), gen8_uip(inst));
> + }
> +
> + if (m_opcode[opcode].nsrc > 0) {
> + pad(file, 32);
> + err |= src0(file, inst);
> + }
> + if (m_opcode[opcode].nsrc > 1) {
> + pad(file, 48);
> + err |= src1(file, inst);
> + }
> + }
> +
> + if (opcode == BRW_OPCODE_SEND || opcode == BRW_OPCODE_SENDC) {
> + const int sfid = gen8_sfid(inst);
> +
> + newline(file);
> + pad(file, 16);
> + space = 0;
> +
> + err |= control(file, "SFID", m_sfid, sfid, &space);
> +
> + switch (sfid) {
> + case BRW_SFID_SAMPLER:
> + format(file, " (%d, %d, %d, %d)",
> + gen8_binding_table_index(inst),
> + gen8_sampler(inst),
> + gen8_sampler_msg_type(inst),
> + gen8_sampler_simd_mode(inst));
> + break;
> +
> + case BRW_SFID_URB:
> + space = 1;
> + err |= control(file, "urb opcode", m_urb_opcode,
> + gen8_urb_opcode(inst), &space);
> + err |= control(file, "urb interleave", m_urb_interleave,
> + gen8_urb_interleave(inst), &space);
> + format(file, " %d %d",
> + gen8_urb_global_offset(inst), gen8_urb_per_slot_offset(inst));
> + break;
> +
> + case GEN6_SFID_DATAPORT_SAMPLER_CACHE:
> + case GEN6_SFID_DATAPORT_RENDER_CACHE:
> + case GEN6_SFID_DATAPORT_CONSTANT_CACHE:
> + case GEN7_SFID_DATAPORT_DATA_CACHE:
> + format(file, " (%d, 0x%x)",
> + gen8_binding_table_index(inst),
> + gen8_function_control(inst));
> + break;
> +
> + default:
> + format(file, "unsupported shared function ID (%d)", sfid);
> + break;
> + }
> + if (space)
> + string(file, " ");
> + format(file, "mlen %d", gen8_mlen(inst));
> + format(file, " rlen %d", gen8_rlen(inst));
> + }
> + pad(file, 64);
> + if (opcode != BRW_OPCODE_NOP) {
> + string(file, "{");
> + space = 1;
> + err |= control(file, "access mode", m_access_mode, gen8_access_mode(inst), &space);
> + err |= control(file, "mask control", m_maskctrl, gen8_mask_control(inst), &space);
> + err |= control(file, "DDClr", m_dep_clear, gen8_no_dd_clear(inst), &space);
> + err |= control(file, "DDChk", m_dep_check, gen8_no_dd_check(inst), &space);
> +
> + err |= qtr_ctrl(file, inst);
> +
> + err |= control(file, "thread control", m_thread_ctrl, gen8_thread_control(inst), &space);
> + err |= control(file, "acc write control", m_accwr, gen8_acc_wr_control(inst), &space);
> + if (opcode == BRW_OPCODE_SEND || opcode == BRW_OPCODE_SENDC)
> + err |= control(file, "end of thread", m_eot, gen8_eot(inst), &space);
> + if (space)
> + string(file, " ");
> + string(file, "}");
> + }
> + string(file, ";");
> + newline(file);
> + return err;
> +}
> --
> 1.8.4.4
>
> _______________________________________________
> mesa-dev mailing list
> mesa-dev at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
More information about the mesa-dev
mailing list