* IN THE SOFTWARE.
*/
-#include "glsl/ir.h"
-#include "glsl/ir_optimization.h"
-#include "glsl/nir/glsl_to_nir.h"
+#include "compiler/glsl/ir.h"
#include "main/shaderimage.h"
-#include "program/prog_to_nir.h"
#include "brw_fs.h"
#include "brw_fs_surface_builder.h"
-#include "brw_vec4_gs_visitor.h"
#include "brw_nir.h"
-#include "brw_fs_surface_builder.h"
-#include "brw_vec4_gs_visitor.h"
+#include "brw_program.h"
using namespace brw;
using namespace brw::surface_access;
nir_emit_system_values();
/* get the main function and emit it */
- nir_foreach_overload(nir, overload) {
- assert(strcmp(overload->function->name, "main") == 0);
- assert(overload->impl);
- nir_emit_impl(overload->impl);
+ nir_foreach_function(nir, function) {
+ assert(strcmp(function->name, "main") == 0);
+ assert(function->impl);
+ nir_emit_impl(function->impl);
}
}
reg.type = BRW_REGISTER_TYPE_D;
bld.emit(FS_OPCODE_CINTERP, retype(input, BRW_REGISTER_TYPE_D), reg);
} else {
- emit_general_interpolation(input, var->name, var->type,
+ int location = var->data.location;
+ emit_general_interpolation(&input, var->name, var->type,
(glsl_interp_qualifier) var->data.interpolation,
- var->data.location, var->data.centroid,
+ &location, var->data.centroid,
var->data.sample);
}
}
}
+void
+fs_visitor::nir_setup_single_output_varying(fs_reg *reg,
+ const glsl_type *type,
+ unsigned *location)
+{
+ if (type->is_array() || type->is_matrix()) {
+ const struct glsl_type *elem_type = glsl_get_array_element(type);
+ const unsigned length = glsl_get_length(type);
+
+ for (unsigned i = 0; i < length; i++) {
+ nir_setup_single_output_varying(reg, elem_type, location);
+ }
+ } else if (type->is_record()) {
+ for (unsigned i = 0; i < type->length; i++) {
+ const struct glsl_type *field_type = type->fields.structure[i].type;
+ nir_setup_single_output_varying(reg, field_type, location);
+ }
+ } else {
+ assert(type->is_scalar() || type->is_vector());
+ this->outputs[*location] = *reg;
+ this->output_components[*location] = type->vector_elements;
+ *reg = offset(*reg, bld, 4);
+ (*location)++;
+ }
+}
+
void
fs_visitor::nir_setup_outputs()
{
nir_foreach_variable(var, &nir->outputs) {
fs_reg reg = offset(nir_outputs, bld, var->data.driver_location);
- int vector_elements = var->type->without_array()->vector_elements;
-
switch (stage) {
case MESA_SHADER_VERTEX:
- case MESA_SHADER_GEOMETRY:
- for (int i = 0; i < type_size_vec4(var->type); i++) {
- int output = var->data.location + i;
- this->outputs[output] = offset(reg, bld, 4 * i);
- this->output_components[output] = vector_elements;
- }
+ case MESA_SHADER_TESS_EVAL:
+ case MESA_SHADER_GEOMETRY: {
+ unsigned location = var->data.location;
+ nir_setup_single_output_varying(®, var->type, &location);
break;
+ }
case MESA_SHADER_FRAGMENT:
- if (var->data.index > 0) {
+ if (key->force_dual_color_blend &&
+ var->data.location == FRAG_RESULT_DATA1) {
+ this->dual_src_output = reg;
+ this->do_dual_src = true;
+ } else if (var->data.index > 0) {
assert(var->data.location == FRAG_RESULT_DATA0);
assert(var->data.index == 1);
this->dual_src_output = reg;
} else if (var->data.location == FRAG_RESULT_SAMPLE_MASK) {
this->sample_mask = reg;
} else {
+ int vector_elements = var->type->without_array()->vector_elements;
+
/* gl_FragData or a user-defined FS output */
assert(var->data.location >= FRAG_RESULT_DATA0 &&
var->data.location < FRAG_RESULT_DATA0+BRW_MAX_DRAW_BUFFERS);
if (dispatch_width != 8)
return;
- uniforms = nir->num_uniforms;
+ uniforms = nir->num_uniforms / 4;
nir_foreach_variable(var, &nir->uniforms) {
/* UBO's and atomics don't take up space in the uniform file */
continue;
if (type_size_scalar(var->type) > 0)
- param_size[var->data.driver_location] = type_size_scalar(var->type);
+ param_size[var->data.driver_location / 4] = type_size_scalar(var->type);
}
}
*reg = *v->emit_vs_system_value(SYSTEM_VALUE_INSTANCE_ID);
break;
+ case nir_intrinsic_load_base_instance:
+ assert(v->stage == MESA_SHADER_VERTEX);
+ reg = &v->nir_system_values[SYSTEM_VALUE_BASE_INSTANCE];
+ if (reg->file == BAD_FILE)
+ *reg = *v->emit_vs_system_value(SYSTEM_VALUE_BASE_INSTANCE);
+ break;
+
+ case nir_intrinsic_load_draw_id:
+ assert(v->stage == MESA_SHADER_VERTEX);
+ reg = &v->nir_system_values[SYSTEM_VALUE_DRAW_ID];
+ if (reg->file == BAD_FILE)
+ *reg = *v->emit_vs_system_value(SYSTEM_VALUE_DRAW_ID);
+ break;
+
case nir_intrinsic_load_invocation_id:
assert(v->stage == MESA_SHADER_GEOMETRY);
reg = &v->nir_system_values[SYSTEM_VALUE_INVOCATION_ID];
nir_system_values[i] = fs_reg();
}
- nir_foreach_overload(nir, overload) {
- assert(strcmp(overload->function->name, "main") == 0);
- assert(overload->impl);
- nir_foreach_block(overload->impl, emit_system_values_block, this);
+ nir_foreach_function(nir, function) {
+ assert(strcmp(function->name, "main") == 0);
+ assert(function->impl);
+ nir_foreach_block(function->impl, emit_system_values_block, this);
}
}
case MESA_SHADER_VERTEX:
nir_emit_vs_intrinsic(abld, nir_instr_as_intrinsic(instr));
break;
+ case MESA_SHADER_TESS_EVAL:
+ nir_emit_tes_intrinsic(abld, nir_instr_as_intrinsic(instr));
+ break;
case MESA_SHADER_GEOMETRY:
nir_emit_gs_intrinsic(abld, nir_instr_as_intrinsic(instr));
break;
case nir_op_fdot2:
case nir_op_fdot3:
case nir_op_fdot4:
- case nir_op_bany2:
- case nir_op_bany3:
- case nir_op_bany4:
- case nir_op_ball2:
- case nir_op_ball3:
- case nir_op_ball4:
case nir_op_ball_fequal2:
case nir_op_ball_iequal2:
case nir_op_ball_fequal3:
case nir_op_fmin:
case nir_op_imin:
case nir_op_umin:
- if (devinfo->gen >= 6) {
- inst = bld.emit(BRW_OPCODE_SEL, result, op[0], op[1]);
- inst->conditional_mod = BRW_CONDITIONAL_L;
- } else {
- bld.CMP(bld.null_reg_d(), op[0], op[1], BRW_CONDITIONAL_L);
- inst = bld.SEL(result, op[0], op[1]);
- inst->predicate = BRW_PREDICATE_NORMAL;
- }
+ inst = bld.emit(BRW_OPCODE_SEL, result, op[0], op[1]);
+ inst->conditional_mod = BRW_CONDITIONAL_L;
inst->saturate = instr->dest.saturate;
break;
case nir_op_fmax:
case nir_op_imax:
case nir_op_umax:
- if (devinfo->gen >= 6) {
- inst = bld.emit(BRW_OPCODE_SEL, result, op[0], op[1]);
- inst->conditional_mod = BRW_CONDITIONAL_GE;
- } else {
- bld.CMP(bld.null_reg_d(), op[0], op[1], BRW_CONDITIONAL_GE);
- inst = bld.SEL(result, op[0], op[1]);
- inst->predicate = BRW_PREDICATE_NORMAL;
- }
+ inst = bld.emit(BRW_OPCODE_SEL, result, op[0], op[1]);
+ inst->conditional_mod = BRW_CONDITIONAL_GE;
inst->saturate = instr->dest.saturate;
break;
case nir_op_ubitfield_extract:
case nir_op_ibitfield_extract:
+ unreachable("should have been lowered");
+ case nir_op_ubfe:
+ case nir_op_ibfe:
bld.BFE(result, op[2], op[1], op[0]);
break;
case nir_op_bfm:
break;
case nir_op_bitfield_insert:
- unreachable("not reached: should be handled by "
- "lower_instructions::bitfield_insert_to_bfm_bfi");
+ unreachable("not reached: should have been lowered");
case nir_op_ishl:
bld.SHL(result, op[0], op[1]);
inst->predicate = BRW_PREDICATE_NORMAL;
break;
+ case nir_op_extract_u8:
+ case nir_op_extract_i8: {
+ nir_const_value *byte = nir_src_as_const_value(instr->src[1].src);
+ bld.emit(SHADER_OPCODE_EXTRACT_BYTE,
+ result, op[0], brw_imm_ud(byte->u[0]));
+ break;
+ }
+
+ case nir_op_extract_u16:
+ case nir_op_extract_i16: {
+ nir_const_value *word = nir_src_as_const_value(instr->src[1].src);
+ bld.emit(SHADER_OPCODE_EXTRACT_WORD,
+ result, op[0], brw_imm_ud(word->u[0]));
+ break;
+ }
+
default:
unreachable("unhandled instruction");
}
instr->def.num_components);
}
-static fs_reg
-fs_reg_for_nir_reg(fs_visitor *v, nir_register *nir_reg,
- unsigned base_offset, nir_src *indirect)
-{
- fs_reg reg;
-
- assert(!nir_reg->is_global);
-
- reg = v->nir_locals[nir_reg->index];
-
- reg = offset(reg, v->bld, base_offset * nir_reg->num_components);
- if (indirect) {
- int multiplier = nir_reg->num_components * (v->dispatch_width / 8);
-
- reg.reladdr = new(v->mem_ctx) fs_reg(v->vgrf(glsl_type::int_type));
- v->bld.MUL(*reg.reladdr, v->get_nir_src(*indirect),
- brw_imm_d(multiplier));
- }
-
- return reg;
-}
-
fs_reg
fs_visitor::get_nir_src(nir_src src)
{
if (src.is_ssa) {
reg = nir_ssa_values[src.ssa->index];
} else {
- reg = fs_reg_for_nir_reg(this, src.reg.reg, src.reg.base_offset,
- src.reg.indirect);
+ /* We don't handle indirects on locals */
+ assert(src.reg.indirect == NULL);
+ reg = offset(nir_locals[src.reg.reg->index], bld,
+ src.reg.base_offset * src.reg.reg->num_components);
}
/* to avoid floating-point denorm flushing problems, set the type by
nir_ssa_values[dest.ssa.index] = bld.vgrf(BRW_REGISTER_TYPE_F,
dest.ssa.num_components);
return nir_ssa_values[dest.ssa.index];
+ } else {
+ /* We don't handle indirects on locals */
+ assert(dest.reg.indirect == NULL);
+ return offset(nir_locals[dest.reg.reg->index], bld,
+ dest.reg.base_offset * dest.reg.reg->num_components);
}
-
- return fs_reg_for_nir_reg(this, dest.reg.reg, dest.reg.base_offset,
- dest.reg.indirect);
}
fs_reg
fs_visitor::get_nir_image_deref(const nir_deref_var *deref)
{
- fs_reg image(UNIFORM, deref->var->data.driver_location,
+ fs_reg image(UNIFORM, deref->var->data.driver_location / 4,
BRW_REGISTER_TYPE_UD);
for (const nir_deref *tail = &deref->deref; tail->child;
bld.MOV(tmp, get_nir_src(deref_array->indirect));
}
- bld.MUL(tmp, tmp, brw_imm_ud(element_size));
+ bld.MUL(tmp, tmp, brw_imm_ud(element_size * 4));
if (image.reladdr)
bld.ADD(*image.reladdr, *image.reladdr, tmp);
else
static brw_reg_type
get_image_base_type(const glsl_type *type)
{
- switch ((glsl_base_type)type->sampler_type) {
+ switch ((glsl_base_type)type->sampled_type) {
case GLSL_TYPE_UINT:
return BRW_REGISTER_TYPE_UD;
case GLSL_TYPE_INT:
void
fs_visitor::emit_gs_input_load(const fs_reg &dst,
const nir_src &vertex_src,
- const fs_reg &indirect_offset,
- unsigned imm_offset,
+ unsigned base_offset,
+ const nir_src &offset_src,
unsigned num_components)
{
struct brw_gs_prog_data *gs_prog_data = (struct brw_gs_prog_data *) prog_data;
+ nir_const_value *vertex_const = nir_src_as_const_value(vertex_src);
+ nir_const_value *offset_const = nir_src_as_const_value(offset_src);
+ const unsigned push_reg_count = gs_prog_data->base.urb_read_length * 8;
+
/* Offset 0 is the VUE header, which contains VARYING_SLOT_LAYER [.y],
* VARYING_SLOT_VIEWPORT [.z], and VARYING_SLOT_PSIZ [.w]. Only
* gl_PointSize is available as a GS input, however, so it must be that.
*/
- const bool is_point_size =
- indirect_offset.file == BAD_FILE && imm_offset == 0;
+ const bool is_point_size = (base_offset == 0);
- nir_const_value *vertex_const = nir_src_as_const_value(vertex_src);
- const unsigned push_reg_count = gs_prog_data->base.urb_read_length * 8;
-
- if (indirect_offset.file == BAD_FILE && vertex_const != NULL &&
- 4 * imm_offset < push_reg_count) {
- imm_offset = 4 * imm_offset + vertex_const->u[0] * push_reg_count;
+ if (offset_const != NULL && vertex_const != NULL &&
+ 4 * (base_offset + offset_const->u[0]) < push_reg_count) {
+ int imm_offset = (base_offset + offset_const->u[0]) * 4 +
+ vertex_const->u[0] * push_reg_count;
/* This input was pushed into registers. */
if (is_point_size) {
/* gl_PointSize comes in .w */
+ assert(imm_offset == 0);
bld.MOV(dst, fs_reg(ATTR, imm_offset + 3, dst.type));
} else {
for (unsigned i = 0; i < num_components; i++) {
}
fs_inst *inst;
- if (indirect_offset.file == BAD_FILE) {
+ if (offset_const) {
/* Constant indexing - use global offset. */
inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8, dst, icp_handle);
- inst->offset = imm_offset;
+ inst->offset = base_offset + offset_const->u[0];
inst->base_mrf = -1;
inst->mlen = 1;
inst->regs_written = num_components;
} else {
/* Indirect indexing - use per-slot offsets as well. */
- const fs_reg srcs[] = { icp_handle, indirect_offset };
+ const fs_reg srcs[] = { icp_handle, get_nir_src(offset_src) };
fs_reg payload = bld.vgrf(BRW_REGISTER_TYPE_UD, 2);
bld.LOAD_PAYLOAD(payload, srcs, ARRAY_SIZE(srcs), 0);
inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT, dst, payload);
- inst->offset = imm_offset;
+ inst->offset = base_offset;
inst->base_mrf = -1;
inst->mlen = 2;
inst->regs_written = num_components;
}
}
+fs_reg
+fs_visitor::get_indirect_offset(nir_intrinsic_instr *instr)
+{
+ nir_src *offset_src = nir_get_io_offset_src(instr);
+ nir_const_value *const_value = nir_src_as_const_value(*offset_src);
+
+ if (const_value) {
+ /* The only constant offset we should find is 0. brw_nir.c's
+ * add_const_offset_to_base() will fold other constant offsets
+ * into instr->const_index[0].
+ */
+ assert(const_value->u[0] == 0);
+ return fs_reg();
+ }
+
+ return get_nir_src(*offset_src);
+}
+
void
fs_visitor::nir_emit_vs_intrinsic(const fs_builder &bld,
nir_intrinsic_instr *instr)
case nir_intrinsic_load_vertex_id_zero_base:
case nir_intrinsic_load_base_vertex:
- case nir_intrinsic_load_instance_id: {
+ case nir_intrinsic_load_instance_id:
+ case nir_intrinsic_load_base_instance:
+ case nir_intrinsic_load_draw_id: {
gl_system_value sv = nir_system_value_from_intrinsic(instr->intrinsic);
fs_reg val = nir_system_values[sv];
assert(val.file != BAD_FILE);
}
}
+void
+fs_visitor::nir_emit_tes_intrinsic(const fs_builder &bld,
+ nir_intrinsic_instr *instr)
+{
+ assert(stage == MESA_SHADER_TESS_EVAL);
+ struct brw_tes_prog_data *tes_prog_data = (struct brw_tes_prog_data *) prog_data;
+
+ fs_reg dest;
+ if (nir_intrinsic_infos[instr->intrinsic].has_dest)
+ dest = get_nir_dest(instr->dest);
+
+ switch (instr->intrinsic) {
+ case nir_intrinsic_load_primitive_id:
+ bld.MOV(dest, fs_reg(brw_vec1_grf(0, 1)));
+ break;
+ case nir_intrinsic_load_tess_coord:
+ /* gl_TessCoord is part of the payload in g1-3 */
+ for (unsigned i = 0; i < 3; i++) {
+ bld.MOV(offset(dest, bld, i), fs_reg(brw_vec8_grf(1 + i, 0)));
+ }
+ break;
+
+ case nir_intrinsic_load_tess_level_outer:
+ /* When the TES reads gl_TessLevelOuter, we ensure that the patch header
+ * appears as a push-model input. So, we can simply use the ATTR file
+ * rather than issuing URB read messages. The data is stored in the
+ * high DWords in reverse order - DWord 7 contains .x, DWord 6 contains
+ * .y, and so on.
+ */
+ switch (tes_prog_data->domain) {
+ case BRW_TESS_DOMAIN_QUAD:
+ for (unsigned i = 0; i < 4; i++)
+ bld.MOV(offset(dest, bld, i), component(fs_reg(ATTR, 0), 7 - i));
+ break;
+ case BRW_TESS_DOMAIN_TRI:
+ for (unsigned i = 0; i < 3; i++)
+ bld.MOV(offset(dest, bld, i), component(fs_reg(ATTR, 0), 7 - i));
+ break;
+ case BRW_TESS_DOMAIN_ISOLINE:
+ for (unsigned i = 0; i < 2; i++)
+ bld.MOV(offset(dest, bld, i), component(fs_reg(ATTR, 0), 7 - i));
+ break;
+ }
+ break;
+
+ case nir_intrinsic_load_tess_level_inner:
+ /* When the TES reads gl_TessLevelInner, we ensure that the patch header
+ * appears as a push-model input. So, we can simply use the ATTR file
+ * rather than issuing URB read messages.
+ */
+ switch (tes_prog_data->domain) {
+ case BRW_TESS_DOMAIN_QUAD:
+ bld.MOV(dest, component(fs_reg(ATTR, 0), 3));
+ bld.MOV(offset(dest, bld, 1), component(fs_reg(ATTR, 0), 2));
+ break;
+ case BRW_TESS_DOMAIN_TRI:
+ bld.MOV(dest, component(fs_reg(ATTR, 0), 4));
+ break;
+ case BRW_TESS_DOMAIN_ISOLINE:
+ /* ignore - value is undefined */
+ break;
+ }
+ break;
+
+ case nir_intrinsic_load_input:
+ case nir_intrinsic_load_per_vertex_input: {
+ fs_reg indirect_offset = get_indirect_offset(instr);
+ unsigned imm_offset = instr->const_index[0];
+
+ fs_inst *inst;
+ if (indirect_offset.file == BAD_FILE) {
+ /* Arbitrarily only push up to 32 vec4 slots worth of data,
+ * which is 16 registers (since each holds 2 vec4 slots).
+ */
+ const unsigned max_push_slots = 32;
+ if (imm_offset < max_push_slots) {
+ fs_reg src = fs_reg(ATTR, imm_offset / 2, dest.type);
+ for (int i = 0; i < instr->num_components; i++) {
+ bld.MOV(offset(dest, bld, i),
+ component(src, 4 * (imm_offset % 2) + i));
+ }
+ tes_prog_data->base.urb_read_length =
+ MAX2(tes_prog_data->base.urb_read_length,
+ DIV_ROUND_UP(imm_offset + 1, 2));
+ } else {
+ /* Replicate the patch handle to all enabled channels */
+ const fs_reg srcs[] = {
+ retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UD)
+ };
+ fs_reg patch_handle = bld.vgrf(BRW_REGISTER_TYPE_UD, 1);
+ bld.LOAD_PAYLOAD(patch_handle, srcs, ARRAY_SIZE(srcs), 0);
+
+ inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8, dest, patch_handle);
+ inst->mlen = 1;
+ inst->offset = imm_offset;
+ inst->base_mrf = -1;
+ inst->regs_written = instr->num_components;
+ }
+ } else {
+ /* Indirect indexing - use per-slot offsets as well. */
+ const fs_reg srcs[] = {
+ retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UD),
+ indirect_offset
+ };
+ fs_reg payload = bld.vgrf(BRW_REGISTER_TYPE_UD, 2);
+ bld.LOAD_PAYLOAD(payload, srcs, ARRAY_SIZE(srcs), 0);
+
+ inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT, dest, payload);
+ inst->mlen = 2;
+ inst->offset = imm_offset;
+ inst->base_mrf = -1;
+ inst->regs_written = instr->num_components;
+ }
+ break;
+ }
+ default:
+ nir_emit_intrinsic(bld, instr);
+ break;
+ }
+}
+
void
fs_visitor::nir_emit_gs_intrinsic(const fs_builder &bld,
nir_intrinsic_instr *instr)
retype(fs_reg(brw_vec8_grf(2, 0)), BRW_REGISTER_TYPE_UD));
break;
- case nir_intrinsic_load_input_indirect:
case nir_intrinsic_load_input:
unreachable("load_input intrinsics are invalid for the GS stage");
- case nir_intrinsic_load_per_vertex_input_indirect:
- indirect_offset = retype(get_nir_src(instr->src[1]), BRW_REGISTER_TYPE_D);
- /* fallthrough */
case nir_intrinsic_load_per_vertex_input:
- emit_gs_input_load(dest, instr->src[0],
- indirect_offset, instr->const_index[0],
- instr->num_components);
+ emit_gs_input_load(dest, instr->src[0], instr->const_index[0],
+ instr->src[1], instr->num_components);
break;
case nir_intrinsic_emit_vertex_with_counter:
break;
}
+ case nir_intrinsic_shared_atomic_add:
+ nir_emit_shared_atomic(bld, BRW_AOP_ADD, instr);
+ break;
+ case nir_intrinsic_shared_atomic_imin:
+ nir_emit_shared_atomic(bld, BRW_AOP_IMIN, instr);
+ break;
+ case nir_intrinsic_shared_atomic_umin:
+ nir_emit_shared_atomic(bld, BRW_AOP_UMIN, instr);
+ break;
+ case nir_intrinsic_shared_atomic_imax:
+ nir_emit_shared_atomic(bld, BRW_AOP_IMAX, instr);
+ break;
+ case nir_intrinsic_shared_atomic_umax:
+ nir_emit_shared_atomic(bld, BRW_AOP_UMAX, instr);
+ break;
+ case nir_intrinsic_shared_atomic_and:
+ nir_emit_shared_atomic(bld, BRW_AOP_AND, instr);
+ break;
+ case nir_intrinsic_shared_atomic_or:
+ nir_emit_shared_atomic(bld, BRW_AOP_OR, instr);
+ break;
+ case nir_intrinsic_shared_atomic_xor:
+ nir_emit_shared_atomic(bld, BRW_AOP_XOR, instr);
+ break;
+ case nir_intrinsic_shared_atomic_exchange:
+ nir_emit_shared_atomic(bld, BRW_AOP_MOV, instr);
+ break;
+ case nir_intrinsic_shared_atomic_comp_swap:
+ nir_emit_shared_atomic(bld, BRW_AOP_CMPWR, instr);
+ break;
+
default:
nir_emit_intrinsic(bld, instr);
break;
if (nir_intrinsic_infos[instr->intrinsic].has_dest)
dest = get_nir_dest(instr->dest);
- bool has_indirect = false;
-
switch (instr->intrinsic) {
case nir_intrinsic_atomic_counter_inc:
case nir_intrinsic_atomic_counter_dec:
bld.MOV(retype(dest, BRW_REGISTER_TYPE_D), brw_imm_d(1));
break;
- case nir_intrinsic_load_uniform_indirect:
- has_indirect = true;
- /* fallthrough */
case nir_intrinsic_load_uniform: {
- fs_reg uniform_reg(UNIFORM, instr->const_index[0]);
- uniform_reg.reg_offset = instr->const_index[1];
+ /* Offsets are in bytes but they should always be multiples of 4 */
+ assert(instr->const_index[0] % 4 == 0);
- for (unsigned j = 0; j < instr->num_components; j++) {
- fs_reg src = offset(retype(uniform_reg, dest.type), bld, j);
- if (has_indirect)
- src.reladdr = new(mem_ctx) fs_reg(get_nir_src(instr->src[0]));
+ fs_reg src(UNIFORM, instr->const_index[0] / 4, dest.type);
- bld.MOV(dest, src);
- dest = offset(dest, bld, 1);
+ nir_const_value *const_offset = nir_src_as_const_value(instr->src[0]);
+ if (const_offset) {
+ /* Offsets are in bytes but they should always be multiples of 4 */
+ assert(const_offset->u[0] % 4 == 0);
+ src.reg_offset = const_offset->u[0] / 4;
+ } else {
+ src.reladdr = new(mem_ctx) fs_reg(get_nir_src(instr->src[0]));
+ }
+
+ for (unsigned j = 0; j < instr->num_components; j++) {
+ bld.MOV(offset(dest, bld, j), offset(src, bld, j));
}
break;
}
- case nir_intrinsic_load_ubo_indirect:
- has_indirect = true;
- /* fallthrough */
case nir_intrinsic_load_ubo: {
nir_const_value *const_index = nir_src_as_const_value(instr->src[0]);
fs_reg surf_index;
nir->info.num_ubos - 1);
}
- if (has_indirect) {
- /* Turn the byte offset into a dword offset. */
- fs_reg base_offset = vgrf(glsl_type::int_type);
- bld.SHR(base_offset, retype(get_nir_src(instr->src[1]),
- BRW_REGISTER_TYPE_D),
- brw_imm_d(2));
+ nir_const_value *const_offset = nir_src_as_const_value(instr->src[1]);
+ if (const_offset == NULL) {
+ fs_reg base_offset = retype(get_nir_src(instr->src[1]),
+ BRW_REGISTER_TYPE_D);
- unsigned vec4_offset = instr->const_index[0] / 4;
for (int i = 0; i < instr->num_components; i++)
VARYING_PULL_CONSTANT_LOAD(bld, offset(dest, bld, i), surf_index,
- base_offset, vec4_offset + i);
+ base_offset, i * 4);
} else {
fs_reg packed_consts = vgrf(glsl_type::float_type);
packed_consts.type = dest.type;
- struct brw_reg const_offset_reg = brw_imm_ud(instr->const_index[0] & ~15);
+ struct brw_reg const_offset_reg = brw_imm_ud(const_offset->u[0] & ~15);
bld.emit(FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD, packed_consts,
surf_index, const_offset_reg);
for (unsigned i = 0; i < instr->num_components; i++) {
- packed_consts.set_smear(instr->const_index[0] % 16 / 4 + i);
+ packed_consts.set_smear(const_offset->u[0] % 16 / 4 + i);
/* The std140 packing rules don't allow vectors to cross 16-byte
* boundaries, and a reg is 32 bytes.
break;
}
- case nir_intrinsic_load_ssbo_indirect:
- has_indirect = true;
- /* fallthrough */
case nir_intrinsic_load_ssbo: {
assert(devinfo->gen >= 7);
nir->info.num_ssbos - 1);
}
- /* Get the offset to read from */
fs_reg offset_reg;
- if (has_indirect) {
+ nir_const_value *const_offset = nir_src_as_const_value(instr->src[1]);
+ if (const_offset) {
+ offset_reg = brw_imm_ud(const_offset->u[0]);
+ } else {
offset_reg = get_nir_src(instr->src[1]);
+ }
+
+ /* Read the vector */
+ fs_reg read_result = emit_untyped_read(bld, surf_index, offset_reg,
+ 1 /* dims */,
+ instr->num_components,
+ BRW_PREDICATE_NONE);
+ read_result.type = dest.type;
+ for (int i = 0; i < instr->num_components; i++)
+ bld.MOV(offset(dest, bld, i), offset(read_result, bld, i));
+
+ break;
+ }
+
+ case nir_intrinsic_load_shared: {
+ assert(devinfo->gen >= 7);
+
+ fs_reg surf_index = brw_imm_ud(GEN7_BTI_SLM);
+
+ /* Get the offset to read from */
+ fs_reg offset_reg;
+ nir_const_value *const_offset = nir_src_as_const_value(instr->src[0]);
+ if (const_offset) {
+ offset_reg = brw_imm_ud(instr->const_index[0] + const_offset->u[0]);
} else {
- offset_reg = brw_imm_ud(instr->const_index[0]);
+ offset_reg = vgrf(glsl_type::uint_type);
+ bld.ADD(offset_reg,
+ retype(get_nir_src(instr->src[0]), BRW_REGISTER_TYPE_UD),
+ brw_imm_ud(instr->const_index[0]));
}
/* Read the vector */
break;
}
- case nir_intrinsic_load_input_indirect:
- has_indirect = true;
- /* fallthrough */
- case nir_intrinsic_load_input: {
- unsigned index = 0;
- for (unsigned j = 0; j < instr->num_components; j++) {
- fs_reg src;
- if (stage == MESA_SHADER_VERTEX) {
- src = offset(fs_reg(ATTR, instr->const_index[0], dest.type), bld, index);
+ case nir_intrinsic_store_shared: {
+ assert(devinfo->gen >= 7);
+
+ /* Block index */
+ fs_reg surf_index = brw_imm_ud(GEN7_BTI_SLM);
+
+ /* Value */
+ fs_reg val_reg = get_nir_src(instr->src[0]);
+
+ /* Writemask */
+ unsigned writemask = instr->const_index[1];
+
+ /* Combine groups of consecutive enabled channels in one write
+ * message. We use ffs to find the first enabled channel and then ffs on
+ * the bit-inverse, down-shifted writemask to determine the length of
+ * the block of enabled bits.
+ */
+ while (writemask) {
+ unsigned first_component = ffs(writemask) - 1;
+ unsigned length = ffs(~(writemask >> first_component)) - 1;
+ fs_reg offset_reg;
+
+ nir_const_value *const_offset = nir_src_as_const_value(instr->src[1]);
+ if (const_offset) {
+ offset_reg = brw_imm_ud(instr->const_index[0] + const_offset->u[0] +
+ 4 * first_component);
} else {
- src = offset(retype(nir_inputs, dest.type), bld,
- instr->const_index[0] + index);
+ offset_reg = vgrf(glsl_type::uint_type);
+ bld.ADD(offset_reg,
+ retype(get_nir_src(instr->src[1]), BRW_REGISTER_TYPE_UD),
+ brw_imm_ud(instr->const_index[0] + 4 * first_component));
}
- if (has_indirect)
- src.reladdr = new(mem_ctx) fs_reg(get_nir_src(instr->src[0]));
- index++;
- bld.MOV(dest, src);
- dest = offset(dest, bld, 1);
+ emit_untyped_write(bld, surf_index, offset_reg,
+ offset(val_reg, bld, first_component),
+ 1 /* dims */, length,
+ BRW_PREDICATE_NONE);
+
+ /* Clear the bits in the writemask that we just wrote, then try
+ * again to see if more channels are left.
+ */
+ writemask &= (15 << (first_component + length));
+ }
+
+ break;
+ }
+
+ case nir_intrinsic_load_input: {
+ fs_reg src;
+ if (stage == MESA_SHADER_VERTEX) {
+ src = fs_reg(ATTR, instr->const_index[0], dest.type);
+ } else {
+ src = offset(retype(nir_inputs, dest.type), bld,
+ instr->const_index[0]);
+ }
+
+ nir_const_value *const_offset = nir_src_as_const_value(instr->src[0]);
+ assert(const_offset && "Indirect input loads not allowed");
+ src = offset(src, bld, const_offset->u[0]);
+
+ for (unsigned j = 0; j < instr->num_components; j++) {
+ bld.MOV(offset(dest, bld, j), offset(src, bld, j));
}
break;
}
- case nir_intrinsic_store_ssbo_indirect:
- has_indirect = true;
- /* fallthrough */
case nir_intrinsic_store_ssbo: {
assert(devinfo->gen >= 7);
fs_reg val_reg = get_nir_src(instr->src[0]);
/* Writemask */
- unsigned writemask = instr->const_index[1];
+ unsigned writemask = instr->const_index[0];
/* Combine groups of consecutive enabled channels in one write
* message. We use ffs to find the first enabled channel and then ffs on
while (writemask) {
unsigned first_component = ffs(writemask) - 1;
unsigned length = ffs(~(writemask >> first_component)) - 1;
- fs_reg offset_reg;
- if (!has_indirect) {
- offset_reg = brw_imm_ud(instr->const_index[0] + 4 * first_component);
+ fs_reg offset_reg;
+ nir_const_value *const_offset = nir_src_as_const_value(instr->src[2]);
+ if (const_offset) {
+ offset_reg = brw_imm_ud(const_offset->u[0] + 4 * first_component);
} else {
offset_reg = vgrf(glsl_type::uint_type);
bld.ADD(offset_reg,
break;
}
- case nir_intrinsic_store_output_indirect:
- has_indirect = true;
- /* fallthrough */
case nir_intrinsic_store_output: {
fs_reg src = get_nir_src(instr->src[0]);
- unsigned index = 0;
+ fs_reg new_dest = offset(retype(nir_outputs, src.type), bld,
+ instr->const_index[0]);
+
+ nir_const_value *const_offset = nir_src_as_const_value(instr->src[1]);
+ assert(const_offset && "Indirect output stores not allowed");
+ new_dest = offset(new_dest, bld, const_offset->u[0]);
+
for (unsigned j = 0; j < instr->num_components; j++) {
- fs_reg new_dest = offset(retype(nir_outputs, src.type), bld,
- instr->const_index[0] + index);
- if (has_indirect)
- src.reladdr = new(mem_ctx) fs_reg(get_nir_src(instr->src[1]));
- index++;
- bld.MOV(new_dest, src);
- src = offset(src, bld, 1);
+ bld.MOV(offset(new_dest, bld, j), offset(src, bld, j));
}
break;
}
bld.MOV(dest, atomic_result);
}
+void
+fs_visitor::nir_emit_shared_atomic(const fs_builder &bld,
+ int op, nir_intrinsic_instr *instr)
+{
+ fs_reg dest;
+ if (nir_intrinsic_infos[instr->intrinsic].has_dest)
+ dest = get_nir_dest(instr->dest);
+
+ fs_reg surface = brw_imm_ud(GEN7_BTI_SLM);
+ fs_reg offset = get_nir_src(instr->src[0]);
+ fs_reg data1 = get_nir_src(instr->src[1]);
+ fs_reg data2;
+ if (op == BRW_AOP_CMPWR)
+ data2 = get_nir_src(instr->src[2]);
+
+ /* Emit the actual atomic operation operation */
+
+ fs_reg atomic_result =
+ surface_access::emit_untyped_atomic(bld, surface, offset,
+ data1, data2,
+ 1 /* dims */, 1 /* rsize */,
+ op,
+ BRW_PREDICATE_NONE);
+ dest.type = atomic_result.type;
+ bld.MOV(dest, atomic_result);
+}
+
void
fs_visitor::nir_emit_texture(const fs_builder &bld, nir_tex_instr *instr)
{
+ unsigned texture = instr->texture_index;
unsigned sampler = instr->sampler_index;
+ fs_reg texture_reg(brw_imm_ud(texture));
fs_reg sampler_reg(brw_imm_ud(sampler));
int gather_component = instr->component;
instr->is_array;
int lod_components = 0;
- int UNUSED offset_components = 0;
fs_reg coordinate, shadow_comparitor, lod, lod2, sample_index, mcs, tex_offset;
case nir_tex_src_ms_index:
sample_index = retype(src, BRW_REGISTER_TYPE_UD);
break;
- case nir_tex_src_offset:
- tex_offset = retype(src, BRW_REGISTER_TYPE_D);
- if (instr->is_array)
- offset_components = instr->coord_components - 1;
- else
- offset_components = instr->coord_components;
+
+ case nir_tex_src_offset: {
+ nir_const_value *const_offset =
+ nir_src_as_const_value(instr->src[i].src);
+ if (const_offset) {
+ tex_offset = brw_imm_ud(brw_texture_offset(const_offset->i, 3));
+ } else {
+ tex_offset = retype(src, BRW_REGISTER_TYPE_D);
+ }
break;
+ }
+
case nir_tex_src_projector:
unreachable("should be lowered");
- case nir_tex_src_sampler_offset: {
- /* Figure out the highest possible sampler index and mark it as used */
- uint32_t max_used = sampler + instr->sampler_array_size - 1;
+ case nir_tex_src_texture_offset: {
+ /* Figure out the highest possible texture index and mark it as used */
+ uint32_t max_used = texture + instr->texture_array_size - 1;
if (instr->op == nir_texop_tg4 && devinfo->gen < 8) {
max_used += stage_prog_data->binding_table.gather_texture_start;
} else {
}
brw_mark_surface_used(prog_data, max_used);
+ /* Emit code to evaluate the actual indexing expression */
+ texture_reg = vgrf(glsl_type::uint_type);
+ bld.ADD(texture_reg, src, brw_imm_ud(texture));
+ texture_reg = bld.emit_uniformize(texture_reg);
+ break;
+ }
+
+ case nir_tex_src_sampler_offset: {
/* Emit code to evaluate the actual indexing expression */
sampler_reg = vgrf(glsl_type::uint_type);
bld.ADD(sampler_reg, src, brw_imm_ud(sampler));
if (instr->op == nir_texop_txf_ms ||
instr->op == nir_texop_samples_identical) {
if (devinfo->gen >= 7 &&
- key_tex->compressed_multisample_layout_mask & (1 << sampler)) {
- mcs = emit_mcs_fetch(coordinate, instr->coord_components, sampler_reg);
+ key_tex->compressed_multisample_layout_mask & (1 << texture)) {
+ mcs = emit_mcs_fetch(coordinate, instr->coord_components, texture_reg);
} else {
mcs = brw_imm_ud(0u);
}
}
- for (unsigned i = 0; i < 3; i++) {
- if (instr->const_offset[i] != 0) {
- assert(offset_components == 0);
- tex_offset = brw_imm_ud(brw_texture_offset(instr->const_offset, 3));
- break;
- }
- }
-
enum glsl_base_type dest_base_type =
brw_glsl_base_type_for_nir_type (instr->dest_type);
fs_reg dst = retype(get_nir_dest(instr->dest), BRW_REGISTER_TYPE_D);
fs_inst *inst = bld.emit(SHADER_OPCODE_SAMPLEINFO, dst,
bld.vgrf(BRW_REGISTER_TYPE_D, 1),
- sampler_reg);
+ texture_reg, texture_reg);
inst->mlen = 1;
inst->header_size = 1;
inst->base_mrf = -1;
emit_texture(op, dest_type, coordinate, instr->coord_components,
shadow_comparitor, lod, lod2, lod_components, sample_index,
- tex_offset, mcs, gather_component,
- is_cube_array, sampler, sampler_reg);
+ tex_offset, mcs, gather_component, is_cube_array,
+ texture, texture_reg, sampler, sampler_reg);
fs_reg dest = get_nir_dest(instr->dest);
dest.type = this->result.type;
projects / mesa.git / blobdiff