const struct etna_specs *specs;
struct etna_shader_variant *variant;
- /* register assigned to each output, indexed by driver_location */
- unsigned output_reg[ETNA_NUM_INPUTS];
-
/* block # to instr index */
unsigned *block_ptr;
int inst_ptr; /* current instruction pointer */
struct etna_inst code[ETNA_MAX_INSTRUCTIONS * ETNA_INST_SIZE];
+ /* constants */
+ uint64_t consts[ETNA_MAX_IMM];
+
/* There was an error during compilation */
bool error;
};
-#define compile_error(ctx, args...) ({ \
- printf(args); \
- ctx->error = true; \
- assert(0); \
-})
-
/* io related lowering
* run after lower_int_to_float because it adds i2f/f2i ops
*/
static void
etna_lower_io(nir_shader *shader, struct etna_shader_variant *v)
{
- bool rb_swap = shader->info.stage == MESA_SHADER_FRAGMENT && v->key.frag_rb_swap;
-
- unsigned color_location = 0;
- nir_foreach_variable(var, &shader->outputs) {
- switch (var->data.location) {
- case FRAG_RESULT_COLOR:
- case FRAG_RESULT_DATA0:
- color_location = var->data.driver_location;
- break;
- }
- }
-
nir_foreach_function(function, shader) {
nir_builder b;
nir_builder_init(&b, function->impl);
switch (intr->intrinsic) {
case nir_intrinsic_load_front_face: {
- if (!v->key.front_ccw)
- break;
+ /* HW front_face is 0.0/1.0, not 0/~0u for bool
+ * lower with a comparison with 0
+ */
+ intr->dest.ssa.bit_size = 32;
- /* front face inverted (run after int_to_float, so invert as float) */
b.cursor = nir_after_instr(instr);
- nir_ssa_def *ssa = nir_seq(&b, &intr->dest.ssa, nir_imm_float(&b, 0.0));
+ nir_ssa_def *ssa = nir_ine(&b, &intr->dest.ssa, nir_imm_int(&b, 0));
+ if (v->key.front_ccw)
+ nir_instr_as_alu(ssa->parent_instr)->op = nir_op_ieq;
+
nir_ssa_def_rewrite_uses_after(&intr->dest.ssa,
nir_src_for_ssa(ssa),
ssa->parent_instr);
} break;
- case nir_intrinsic_store_output: {
- if (!rb_swap || nir_intrinsic_base(intr) != color_location)
+ case nir_intrinsic_store_deref: {
+ if (shader->info.stage != MESA_SHADER_FRAGMENT || !v->key.frag_rb_swap)
break;
+
+ nir_deref_instr *deref = nir_src_as_deref(intr->src[0]);
+ assert(deref->deref_type == nir_deref_type_var);
+
+ if (deref->var->data.location != FRAG_RESULT_COLOR &&
+ deref->var->data.location != FRAG_RESULT_DATA0)
+ break;
+
b.cursor = nir_before_instr(instr);
- nir_ssa_def *ssa = nir_mov(&b, intr->src[0].ssa);
+ nir_ssa_def *ssa = nir_mov(&b, intr->src[1].ssa);
nir_alu_instr *alu = nir_instr_as_alu(ssa->parent_instr);
alu->src[0].swizzle[0] = 2;
alu->src[0].swizzle[2] = 0;
- nir_instr_rewrite_src(instr, &intr->src[0], nir_src_for_ssa(ssa));
- } break;
- case nir_intrinsic_load_instance_id: {
- b.cursor = nir_after_instr(instr);
- nir_ssa_def *ssa = nir_i2f32(&b, &intr->dest.ssa);
- nir_ssa_def_rewrite_uses_after(&intr->dest.ssa,
- nir_src_for_ssa(ssa),
- ssa->parent_instr);
+ nir_instr_rewrite_src(instr, &intr->src[1], nir_src_for_ssa(ssa));
} break;
case nir_intrinsic_load_uniform: {
/* multiply by 16 and convert to int */
b.cursor = nir_before_instr(instr);
- nir_ssa_def *ssa = nir_f2u32(&b, nir_fmul(&b, intr->src[0].ssa,
- nir_imm_float(&b, 16.0f)));
+ nir_ssa_def *ssa = nir_imul(&b, intr->src[0].ssa, nir_imm_int(&b, 16));
nir_instr_rewrite_src(instr, &intr->src[0], nir_src_for_ssa(ssa));
} break;
default:
lod_bias = &tex->src[i].src;
lod_bias_idx = i;
break;
+ case nir_tex_src_comparator:
+ break;
default:
assert(0);
break;
case nir_op_fcos:
case nir_op_fsin:
case nir_op_fdiv:
+ case nir_op_imul:
+ return true;
+ /* TODO: can do better than alu_to_scalar for vector compares */
+ case nir_op_b32all_fequal2:
+ case nir_op_b32all_fequal3:
+ case nir_op_b32all_fequal4:
+ case nir_op_b32any_fnequal2:
+ case nir_op_b32any_fnequal3:
+ case nir_op_b32any_fnequal4:
+ case nir_op_b32all_iequal2:
+ case nir_op_b32all_iequal3:
+ case nir_op_b32all_iequal4:
+ case nir_op_b32any_inequal2:
+ case nir_op_b32any_inequal3:
+ case nir_op_b32any_inequal4:
return true;
case nir_op_fdot2:
if (!specs->has_halti2_instructions)
INST_TYPE_##type \
}
#define OPC(nir, op, src, cond) OPCT(nir, op, src, cond, F32)
+#define IOPC(nir, op, src, cond) OPCT(nir, op, src, cond, S32)
+#define UOPC(nir, op, src, cond) OPCT(nir, op, src, cond, U32)
#define OP(nir, op, src) OPC(nir, op, src, TRUE)
+#define IOP(nir, op, src) IOPC(nir, op, src, TRUE)
+#define UOP(nir, op, src) UOPC(nir, op, src, TRUE)
OP(mov, MOV, X_X_0), OP(fneg, MOV, X_X_0), OP(fabs, MOV, X_X_0), OP(fsat, MOV, X_X_0),
OP(fmul, MUL, 0_1_X), OP(fadd, ADD, 0_X_1), OP(ffma, MAD, 0_1_2),
OP(fdot2, DP2, 0_1_X), OP(fdot3, DP3, 0_1_X), OP(fdot4, DP4, 0_1_X),
OP(fdiv, DIV, 0_1_X),
OP(fddx, DSX, 0_X_0), OP(fddy, DSY, 0_X_0),
- /* integer opcodes */
- OPCT(i2f32, I2F, 0_X_X, TRUE, S32),
- OPCT(f2u32, F2I, 0_X_X, TRUE, U32),
+ /* type convert */
+ IOP(i2f32, I2F, 0_X_X),
+ UOP(u2f32, I2F, 0_X_X),
+ IOP(f2i32, F2I, 0_X_X),
+ UOP(f2u32, F2I, 0_X_X),
+ UOP(b2f32, AND, 0_X_X), /* AND with fui(1.0f) */
+ UOP(b2i32, AND, 0_X_X), /* AND with 1 */
+ OPC(f2b32, CMP, 0_X_X, NE), /* != 0.0 */
+ UOPC(i2b32, CMP, 0_X_X, NE), /* != 0 */
+
+ /* arithmetic */
+ IOP(iadd, ADD, 0_X_1),
+ IOP(imul, IMULLO0, 0_1_X),
+ /* IOP(imad, IMADLO0, 0_1_2), */
+ IOP(ineg, ADD, X_X_0), /* ADD 0, -x */
+ IOP(iabs, IABS, X_X_0),
+ IOP(isign, SIGN, X_X_0),
+ IOPC(imin, SELECT, 0_1_0, GT),
+ IOPC(imax, SELECT, 0_1_0, LT),
+ UOPC(umin, SELECT, 0_1_0, GT),
+ UOPC(umax, SELECT, 0_1_0, LT),
+
+ /* select */
+ UOPC(b32csel, SELECT, 0_1_2, NZ),
+
+ /* compare with int result */
+ OPC(feq32, CMP, 0_1_X, EQ),
+ OPC(fne32, CMP, 0_1_X, NE),
+ OPC(fge32, CMP, 0_1_X, GE),
+ OPC(flt32, CMP, 0_1_X, LT),
+ IOPC(ieq32, CMP, 0_1_X, EQ),
+ IOPC(ine32, CMP, 0_1_X, NE),
+ IOPC(ige32, CMP, 0_1_X, GE),
+ IOPC(ilt32, CMP, 0_1_X, LT),
+ UOPC(uge32, CMP, 0_1_X, GE),
+ UOPC(ult32, CMP, 0_1_X, LT),
+
+ /* bit ops */
+ IOP(ior, OR, 0_X_1),
+ IOP(iand, AND, 0_X_1),
+ IOP(ixor, XOR, 0_X_1),
+ IOP(inot, NOT, X_X_0),
+ IOP(ishl, LSHIFT, 0_X_1),
+ IOP(ishr, RSHIFT, 0_X_1),
+ UOP(ushr, RSHIFT, 0_X_1),
};
static void
struct etna_inst_src src[3], bool saturate)
{
struct etna_op_info ei = etna_ops[op];
+ unsigned swiz_scalar = INST_SWIZ_BROADCAST(ffs(dst.write_mask) - 1);
assert(ei.opcode != 0xff);
case nir_op_frcp:
case nir_op_fexp2:
case nir_op_fsqrt:
- case nir_op_i2f32:
- case nir_op_f2u32:
- /* for these instructions we want src to be in x component
- * note: on HALTI2+ i2f/f2u are not scalar but we only use them this way currently
- */
- src[0].swiz = inst_swiz_compose(src[0].swiz,
- INST_SWIZ_BROADCAST(ffs(inst.dst.write_mask)-1));
+ case nir_op_imul:
+ /* scalar instructions we want src to be in x component */
+ src[0].swiz = inst_swiz_compose(src[0].swiz, swiz_scalar);
+ src[1].swiz = inst_swiz_compose(src[1].swiz, swiz_scalar);
+ break;
+ /* deal with instructions which don't have 1:1 mapping */
+ case nir_op_b2f32:
+ inst.src[2] = etna_immediate_float(1.0f);
+ break;
+ case nir_op_b2i32:
+ inst.src[2] = etna_immediate_int(1);
+ break;
+ case nir_op_f2b32:
+ inst.src[1] = etna_immediate_float(0.0f);
+ break;
+ case nir_op_i2b32:
+ inst.src[1] = etna_immediate_int(0);
+ break;
+ case nir_op_ineg:
+ inst.src[0] = etna_immediate_int(0);
+ src[0].neg = 1;
+ break;
default:
break;
}
+ /* set the "true" value for CMP instructions */
+ if (inst.opcode == INST_OPCODE_CMP)
+ inst.src[2] = etna_immediate_int(-1);
+
for (unsigned j = 0; j < 3; j++) {
unsigned i = ((ei.src >> j*2) & 3);
if (i < 3)
static void
etna_emit_tex(struct etna_compile *c, nir_texop op, unsigned texid, unsigned dst_swiz,
struct etna_inst_dst dst, struct etna_inst_src coord,
- struct etna_inst_src lod_bias)
+ struct etna_inst_src lod_bias, struct etna_inst_src compare)
{
struct etna_inst inst = {
.dst = dst,
if (lod_bias.use)
inst.src[1] = lod_bias;
+ if (compare.use)
+ inst.src[2] = compare;
+
switch (op) {
case nir_texop_tex: inst.opcode = INST_OPCODE_TEXLD; break;
case nir_texop_txb: inst.opcode = INST_OPCODE_TEXLDB; break;
struct etna_inst inst = {
.opcode = INST_OPCODE_TEXKILL,
- .cond = INST_CONDITION_GZ,
+ .cond = INST_CONDITION_NZ,
+ .type = (c->specs->halti < 2) ? INST_TYPE_F32 : INST_TYPE_U32,
.src[0] = condition,
};
inst.src[0].swiz = INST_SWIZ_BROADCAST(inst.src[0].swiz & 3);
}
static void
-etna_emit_output(struct etna_compile *c, unsigned index, struct etna_inst_src src)
+etna_emit_output(struct etna_compile *c, nir_variable *var, struct etna_inst_src src)
{
- c->output_reg[index] = src.reg;
+ struct etna_shader_io_file *sf = &c->variant->outfile;
+
+ if (is_fs(c)) {
+ switch (var->data.location) {
+ case FRAG_RESULT_COLOR:
+ case FRAG_RESULT_DATA0: /* DATA0 is used by gallium shaders for color */
+ c->variant->ps_color_out_reg = src.reg;
+ break;
+ case FRAG_RESULT_DEPTH:
+ c->variant->ps_depth_out_reg = src.reg;
+ break;
+ default:
+ unreachable("Unsupported fs output");
+ }
+ return;
+ }
+
+ switch (var->data.location) {
+ case VARYING_SLOT_POS:
+ c->variant->vs_pos_out_reg = src.reg;
+ break;
+ case VARYING_SLOT_PSIZ:
+ c->variant->vs_pointsize_out_reg = src.reg;
+ break;
+ default:
+ sf->reg[sf->num_reg].reg = src.reg;
+ sf->reg[sf->num_reg].slot = var->data.location;
+ sf->reg[sf->num_reg].num_components = glsl_get_components(var->type);
+ sf->num_reg++;
+ break;
+ }
}
static void
etna_emit_load_ubo(struct etna_compile *c, struct etna_inst_dst dst,
struct etna_inst_src src, struct etna_inst_src base)
{
+ /* convert float offset back to integer */
+ if (c->specs->halti < 2) {
+ emit_inst(c, &(struct etna_inst) {
+ .opcode = INST_OPCODE_F2I,
+ .type = INST_TYPE_U32,
+ .dst = dst,
+ .src[0] = src,
+ });
+
+ emit_inst(c, &(struct etna_inst) {
+ .opcode = INST_OPCODE_LOAD,
+ .type = INST_TYPE_U32,
+ .dst = dst,
+ .src[0] = {
+ .use = 1,
+ .rgroup = INST_RGROUP_TEMP,
+ .reg = dst.reg,
+ .swiz = INST_SWIZ_BROADCAST(ffs(dst.write_mask) - 1)
+ },
+ .src[1] = base,
+ });
+
+ return;
+ }
+
emit_inst(c, &(struct etna_inst) {
.opcode = INST_OPCODE_LOAD,
.type = INST_TYPE_U32,
unsigned idx = var->data.driver_location;
sf->reg[idx].reg = idx;
sf->reg[idx].slot = var->data.location;
- sf->reg[idx].num_components = 4; /* TODO */
+ sf->reg[idx].num_components = glsl_get_components(var->type);
sf->num_reg = MAX2(sf->num_reg, idx+1);
}
} else {
unsigned idx = var->data.driver_location;
sf->reg[idx].reg = idx + 1;
sf->reg[idx].slot = var->data.location;
- sf->reg[idx].num_components = 4; /* TODO */
+ sf->reg[idx].num_components = glsl_get_components(var->type);
sf->num_reg = MAX2(sf->num_reg, idx+1);
count++;
}
assert(sf->num_reg == count);
}
- NIR_PASS_V(s, nir_lower_io, nir_var_all, etna_glsl_type_size,
+ NIR_PASS_V(s, nir_lower_io, ~nir_var_shader_out, etna_glsl_type_size,
(nir_lower_io_options)0);
OPT_V(s, nir_lower_regs_to_ssa);
etna_optimize_loop(s);
- /* use opt_algebraic between int_to_float and boot_to_float because
- * int_to_float emits ftrunc, and ftrunc lowering generates bool ops
- */
- OPT_V(s, nir_lower_int_to_float);
- OPT_V(s, nir_opt_algebraic);
- OPT_V(s, nir_lower_bool_to_float);
-
- /* after int to float because insert i2f for instance_id */
OPT_V(s, etna_lower_io, v);
+ /* lower pre-halti2 to float (halti0 has integers, but only scalar..) */
+ if (c->specs->halti < 2) {
+ /* use opt_algebraic between int_to_float and boot_to_float because
+ * int_to_float emits ftrunc, and ftrunc lowering generates bool ops
+ */
+ OPT_V(s, nir_lower_int_to_float);
+ OPT_V(s, nir_opt_algebraic);
+ OPT_V(s, nir_lower_bool_to_float);
+ } else {
+ OPT_V(s, nir_lower_idiv, nir_lower_idiv_fast);
+ OPT_V(s, nir_lower_bool_to_int32);
+ }
+
etna_optimize_loop(s);
if (DBG_ENABLED(ETNA_DBG_DUMP_SHADERS))
NIR_PASS_V(s, nir_move_vec_src_uses_to_dest);
NIR_PASS_V(s, nir_copy_prop);
+ /* only HW supported integer source mod is ineg for iadd instruction (?) */
NIR_PASS_V(s, nir_lower_to_source_mods, ~nir_lower_int_source_mods);
/* need copy prop after uses_to_dest, and before src mods: see
* dEQP-GLES2.functional.shaders.random.all_features.fragment.95
if (DBG_ENABLED(ETNA_DBG_DUMP_SHADERS))
nir_print_shader(s, stdout);
- uint64_t consts[ETNA_MAX_IMM] = {};
-
unsigned block_ptr[nir_shader_get_entrypoint(s)->num_blocks];
c->block_ptr = block_ptr;
- struct emit_options options = {
- .max_temps = ETNA_MAX_TEMPS,
- .max_consts = ETNA_MAX_IMM / 4,
- .id_reg = sf->num_reg,
- .single_const_src = c->specs->halti < 5,
- .etna_new_transcendentals = c->specs->has_new_transcendentals,
- .user = c,
- .consts = consts,
- };
unsigned num_consts;
- ASSERTED bool ok = emit_shader(c->nir, &options, &v->num_temps, &num_consts);
+ ASSERTED bool ok = emit_shader(c, &v->num_temps, &num_consts);
assert(ok);
/* empty shader, emit NOP */
emit_inst(c, &(struct etna_inst) { .opcode = INST_OPCODE_NOP });
/* assemble instructions, fixing up labels */
- uint32_t *code = MALLOC(c->inst_ptr * 16 + 1024);
+ uint32_t *code = MALLOC(c->inst_ptr * 16);
for (unsigned i = 0; i < c->inst_ptr; i++) {
struct etna_inst *inst = &c->code[i];
if (inst->opcode == INST_OPCODE_BRANCH)
v->code = code;
v->needs_icache = c->inst_ptr > specs->max_instructions;
- copy_uniform_state_to_shader(v, consts, num_consts);
+ copy_uniform_state_to_shader(v, c->consts, num_consts);
if (s->info.stage == MESA_SHADER_FRAGMENT) {
v->input_count_unk8 = 31; /* XXX what is this */
-
- nir_foreach_variable(var, &s->outputs) {
- unsigned reg = c->output_reg[var->data.driver_location];
- switch (var->data.location) {
- case FRAG_RESULT_COLOR:
- case FRAG_RESULT_DATA0: /* DATA0 is used by gallium shaders for color */
- v->ps_color_out_reg = reg;
- break;
- case FRAG_RESULT_DEPTH:
- v->ps_depth_out_reg = reg;
- break;
- default:
- compile_error(c, "Unsupported fs output %s\n", gl_frag_result_name(var->data.location));
- }
- }
assert(v->ps_depth_out_reg <= 0);
- v->outfile.num_reg = 0;
ralloc_free(c->nir);
FREE(c);
return true;
v->input_count_unk8 = DIV_ROUND_UP(v->infile.num_reg + 4, 16); /* XXX what is this */
- sf = &v->outfile;
- sf->num_reg = 0;
- nir_foreach_variable(var, &s->outputs) {
- unsigned native = c->output_reg[var->data.driver_location];
-
- if (var->data.location == VARYING_SLOT_POS) {
- v->vs_pos_out_reg = native;
- continue;
- }
-
- if (var->data.location == VARYING_SLOT_PSIZ) {
- v->vs_pointsize_out_reg = native;
- continue;
- }
-
- sf->reg[sf->num_reg].reg = native;
- sf->reg[sf->num_reg].slot = var->data.location;
- sf->reg[sf->num_reg].num_components = 4; /* TODO */
- sf->num_reg++;
- }
-
/* fill in "mystery meat" load balancing value. This value determines how
* work is scheduled between VS and PS
* in the unified shader architecture. More precisely, it is determined from
projects / mesa.git / blobdiff