* USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
-#include <llvm/Config/llvm-config.h>
-
#include "util/u_memory.h"
-#include "util/u_string.h"
-#include "tgsi/tgsi_build.h"
#include "tgsi/tgsi_strings.h"
-#include "tgsi/tgsi_util.h"
-#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_from_mesa.h"
-#include "ac_binary.h"
#include "ac_exp_param.h"
-#include "ac_shader_util.h"
#include "ac_rtld.h"
-#include "ac_llvm_util.h"
#include "si_shader_internal.h"
#include "si_pipe.h"
#include "sid.h"
static const char scratch_rsrc_dword1_symbol[] =
"SCRATCH_RSRC_DWORD1";
-static void si_init_shader_ctx(struct si_shader_context *ctx,
- struct si_screen *sscreen,
- struct ac_llvm_compiler *compiler,
- unsigned wave_size,
- bool nir);
-
-static void si_llvm_emit_barrier(const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data);
-
static void si_dump_shader_key(const struct si_shader *shader, FILE *f);
static void si_build_vs_prolog_function(struct si_shader_context *ctx,
union si_shader_part_key *key);
-static void si_build_tcs_epilog_function(struct si_shader_context *ctx,
- union si_shader_part_key *key);
-static void si_build_ps_prolog_function(struct si_shader_context *ctx,
- union si_shader_part_key *key);
-static void si_build_ps_epilog_function(struct si_shader_context *ctx,
- union si_shader_part_key *key);
-static void si_fix_resource_usage(struct si_screen *sscreen,
- struct si_shader *shader);
-
-/* Ideally pass the sample mask input to the PS epilog as v14, which
- * is its usual location, so that the shader doesn't have to add v_mov.
- */
-#define PS_EPILOG_SAMPLEMASK_MIN_LOC 14
-
-static bool llvm_type_is_64bit(struct si_shader_context *ctx,
- LLVMTypeRef type)
-{
- if (type == ctx->ac.i64 || type == ctx->ac.f64)
- return true;
-
- return false;
-}
/** Whether the shader runs as a combination of multiple API shaders */
static bool is_multi_part_shader(struct si_shader_context *ctx)
}
/** Whether the shader runs on a merged HW stage (LSHS or ESGS) */
-static bool is_merged_shader(struct si_shader_context *ctx)
+bool si_is_merged_shader(struct si_shader_context *ctx)
{
return ctx->shader->key.as_ngg || is_multi_part_shader(ctx);
}
if (rshift)
value = LLVMBuildLShr(ctx->ac.builder, value,
- LLVMConstInt(ctx->i32, rshift, 0), "");
+ LLVMConstInt(ctx->ac.i32, rshift, 0), "");
if (rshift + bitwidth < 32) {
unsigned mask = (1 << bitwidth) - 1;
value = LLVMBuildAnd(ctx->ac.builder, value,
- LLVMConstInt(ctx->i32, mask, 0), "");
+ LLVMConstInt(ctx->ac.i32, mask, 0), "");
}
return value;
return unpack_llvm_param(ctx, value, rshift, bitwidth);
}
-static LLVMValueRef get_rel_patch_id(struct si_shader_context *ctx)
-{
- switch (ctx->type) {
- case PIPE_SHADER_TESS_CTRL:
- return si_unpack_param(ctx, ctx->args.tcs_rel_ids, 0, 8);
-
- case PIPE_SHADER_TESS_EVAL:
- return ac_get_arg(&ctx->ac, ctx->tes_rel_patch_id);
-
- default:
- assert(0);
- return NULL;
- }
-}
-
-/* Tessellation shaders pass outputs to the next shader using LDS.
- *
- * LS outputs = TCS inputs
- * TCS outputs = TES inputs
- *
- * The LDS layout is:
- * - TCS inputs for patch 0
- * - TCS inputs for patch 1
- * - TCS inputs for patch 2 = get_tcs_in_current_patch_offset (if RelPatchID==2)
- * - ...
- * - TCS outputs for patch 0 = get_tcs_out_patch0_offset
- * - Per-patch TCS outputs for patch 0 = get_tcs_out_patch0_patch_data_offset
- * - TCS outputs for patch 1
- * - Per-patch TCS outputs for patch 1
- * - TCS outputs for patch 2 = get_tcs_out_current_patch_offset (if RelPatchID==2)
- * - Per-patch TCS outputs for patch 2 = get_tcs_out_current_patch_data_offset (if RelPatchID==2)
- * - ...
- *
- * All three shaders VS(LS), TCS, TES share the same LDS space.
- */
-
-static LLVMValueRef
-get_tcs_in_patch_stride(struct si_shader_context *ctx)
-{
- return si_unpack_param(ctx, ctx->vs_state_bits, 8, 13);
-}
-
-static unsigned get_tcs_out_vertex_dw_stride_constant(struct si_shader_context *ctx)
-{
- assert(ctx->type == PIPE_SHADER_TESS_CTRL);
-
- if (ctx->shader->key.mono.u.ff_tcs_inputs_to_copy)
- return util_last_bit64(ctx->shader->key.mono.u.ff_tcs_inputs_to_copy) * 4;
-
- return util_last_bit64(ctx->shader->selector->outputs_written) * 4;
-}
-
-static LLVMValueRef get_tcs_out_vertex_dw_stride(struct si_shader_context *ctx)
-{
- unsigned stride = get_tcs_out_vertex_dw_stride_constant(ctx);
-
- return LLVMConstInt(ctx->i32, stride, 0);
-}
-
-static LLVMValueRef get_tcs_out_patch_stride(struct si_shader_context *ctx)
-{
- if (ctx->shader->key.mono.u.ff_tcs_inputs_to_copy)
- return si_unpack_param(ctx, ctx->tcs_out_lds_layout, 0, 13);
-
- const struct tgsi_shader_info *info = &ctx->shader->selector->info;
- unsigned tcs_out_vertices = info->properties[TGSI_PROPERTY_TCS_VERTICES_OUT];
- unsigned vertex_dw_stride = get_tcs_out_vertex_dw_stride_constant(ctx);
- unsigned num_patch_outputs = util_last_bit64(ctx->shader->selector->patch_outputs_written);
- unsigned patch_dw_stride = tcs_out_vertices * vertex_dw_stride +
- num_patch_outputs * 4;
- return LLVMConstInt(ctx->i32, patch_dw_stride, 0);
-}
-
-static LLVMValueRef
-get_tcs_out_patch0_offset(struct si_shader_context *ctx)
-{
- return LLVMBuildMul(ctx->ac.builder,
- si_unpack_param(ctx, ctx->tcs_out_lds_offsets, 0, 16),
- LLVMConstInt(ctx->i32, 4, 0), "");
-}
-
-static LLVMValueRef
-get_tcs_out_patch0_patch_data_offset(struct si_shader_context *ctx)
-{
- return LLVMBuildMul(ctx->ac.builder,
- si_unpack_param(ctx, ctx->tcs_out_lds_offsets, 16, 16),
- LLVMConstInt(ctx->i32, 4, 0), "");
-}
-
-static LLVMValueRef
-get_tcs_in_current_patch_offset(struct si_shader_context *ctx)
-{
- LLVMValueRef patch_stride = get_tcs_in_patch_stride(ctx);
- LLVMValueRef rel_patch_id = get_rel_patch_id(ctx);
-
- return LLVMBuildMul(ctx->ac.builder, patch_stride, rel_patch_id, "");
-}
-
-static LLVMValueRef
-get_tcs_out_current_patch_offset(struct si_shader_context *ctx)
-{
- LLVMValueRef patch0_offset = get_tcs_out_patch0_offset(ctx);
- LLVMValueRef patch_stride = get_tcs_out_patch_stride(ctx);
- LLVMValueRef rel_patch_id = get_rel_patch_id(ctx);
-
- return ac_build_imad(&ctx->ac, patch_stride, rel_patch_id, patch0_offset);
-}
-
-static LLVMValueRef
-get_tcs_out_current_patch_data_offset(struct si_shader_context *ctx)
-{
- LLVMValueRef patch0_patch_data_offset =
- get_tcs_out_patch0_patch_data_offset(ctx);
- LLVMValueRef patch_stride = get_tcs_out_patch_stride(ctx);
- LLVMValueRef rel_patch_id = get_rel_patch_id(ctx);
-
- return ac_build_imad(&ctx->ac, patch_stride, rel_patch_id, patch0_patch_data_offset);
-}
-
-static LLVMValueRef get_num_tcs_out_vertices(struct si_shader_context *ctx)
-{
- unsigned tcs_out_vertices =
- ctx->shader->selector ?
- ctx->shader->selector->info.properties[TGSI_PROPERTY_TCS_VERTICES_OUT] : 0;
-
- /* If !tcs_out_vertices, it's either the fixed-func TCS or the TCS epilog. */
- if (ctx->type == PIPE_SHADER_TESS_CTRL && tcs_out_vertices)
- return LLVMConstInt(ctx->i32, tcs_out_vertices, 0);
-
- return si_unpack_param(ctx, ctx->tcs_offchip_layout, 6, 6);
-}
-
-static LLVMValueRef get_tcs_in_vertex_dw_stride(struct si_shader_context *ctx)
-{
- unsigned stride;
-
- switch (ctx->type) {
- case PIPE_SHADER_VERTEX:
- stride = ctx->shader->selector->lshs_vertex_stride / 4;
- return LLVMConstInt(ctx->i32, stride, 0);
-
- case PIPE_SHADER_TESS_CTRL:
- if (ctx->screen->info.chip_class >= GFX9 &&
- ctx->shader->is_monolithic) {
- stride = ctx->shader->key.part.tcs.ls->lshs_vertex_stride / 4;
- return LLVMConstInt(ctx->i32, stride, 0);
- }
- return si_unpack_param(ctx, ctx->vs_state_bits, 24, 8);
-
- default:
- assert(0);
- return NULL;
- }
-}
-
static LLVMValueRef unpack_sint16(struct si_shader_context *ctx,
LLVMValueRef i32, unsigned index)
{
if (index == 1)
return LLVMBuildAShr(ctx->ac.builder, i32,
- LLVMConstInt(ctx->i32, 16, 0), "");
+ LLVMConstInt(ctx->ac.i32, 16, 0), "");
return LLVMBuildSExt(ctx->ac.builder,
LLVMBuildTrunc(ctx->ac.builder, i32,
ctx->ac.i16, ""),
- ctx->i32, "");
+ ctx->ac.i32, "");
}
void si_llvm_load_input_vs(
unsigned input_index,
LLVMValueRef out[4])
{
- const struct tgsi_shader_info *info = &ctx->shader->selector->info;
+ const struct si_shader_info *info = &ctx->shader->selector->info;
unsigned vs_blit_property = info->properties[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD];
if (vs_blit_property) {
LLVMValueRef vertex_id = ctx->abi.vertex_id;
LLVMValueRef sel_x1 = LLVMBuildICmp(ctx->ac.builder,
LLVMIntULE, vertex_id,
- ctx->i32_1, "");
+ ctx->ac.i32_1, "");
/* Use LLVMIntNE, because we have 3 vertices and only
* the middle one should use y2.
*/
LLVMValueRef sel_y1 = LLVMBuildICmp(ctx->ac.builder,
LLVMIntNE, vertex_id,
- ctx->i32_1, "");
+ ctx->ac.i32_1, "");
unsigned param_vs_blit_inputs = ctx->vs_blit_inputs.arg_index;
if (input_index == 0) {
LLVMValueRef y = LLVMBuildSelect(ctx->ac.builder, sel_y1,
y1, y2, "");
- out[0] = LLVMBuildSIToFP(ctx->ac.builder, x, ctx->f32, "");
- out[1] = LLVMBuildSIToFP(ctx->ac.builder, y, ctx->f32, "");
+ out[0] = LLVMBuildSIToFP(ctx->ac.builder, x, ctx->ac.f32, "");
+ out[1] = LLVMBuildSIToFP(ctx->ac.builder, y, ctx->ac.f32, "");
out[2] = LLVMGetParam(ctx->main_fn,
param_vs_blit_inputs + 2);
out[3] = ctx->ac.f32_1;
return;
}
+ unsigned num_vbos_in_user_sgprs = ctx->shader->selector->num_vbos_in_user_sgprs;
union si_vs_fix_fetch fix_fetch;
- LLVMValueRef t_list_ptr;
- LLVMValueRef t_offset;
- LLVMValueRef t_list;
+ LLVMValueRef vb_desc;
LLVMValueRef vertex_index;
LLVMValueRef tmp;
- /* Load the T list */
- t_list_ptr = ac_get_arg(&ctx->ac, ctx->vertex_buffers);
-
- t_offset = LLVMConstInt(ctx->i32, input_index, 0);
-
- t_list = ac_build_load_to_sgpr(&ctx->ac, t_list_ptr, t_offset);
+ if (input_index < num_vbos_in_user_sgprs) {
+ vb_desc = ac_get_arg(&ctx->ac, ctx->vb_descriptors[input_index]);
+ } else {
+ unsigned index= input_index - num_vbos_in_user_sgprs;
+ vb_desc = ac_build_load_to_sgpr(&ctx->ac,
+ ac_get_arg(&ctx->ac, ctx->vertex_buffers),
+ LLVMConstInt(ctx->ac.i32, index, 0));
+ }
vertex_index = LLVMGetParam(ctx->main_fn,
ctx->vertex_index0.arg_index +
tmp = ac_build_opencoded_load_format(
&ctx->ac, fix_fetch.u.log_size, fix_fetch.u.num_channels_m1 + 1,
fix_fetch.u.format, fix_fetch.u.reverse, !opencode,
- t_list, vertex_index, ctx->ac.i32_0, ctx->ac.i32_0, 0, true);
+ vb_desc, vertex_index, ctx->ac.i32_0, ctx->ac.i32_0, 0, true);
for (unsigned i = 0; i < 4; ++i)
- out[i] = LLVMBuildExtractElement(ctx->ac.builder, tmp, LLVMConstInt(ctx->i32, i, false), "");
+ out[i] = LLVMBuildExtractElement(ctx->ac.builder, tmp, LLVMConstInt(ctx->ac.i32, i, false), "");
return;
}
}
for (unsigned i = 0; i < num_fetches; ++i) {
- LLVMValueRef voffset = LLVMConstInt(ctx->i32, fetch_stride * i, 0);
- fetches[i] = ac_build_buffer_load_format(&ctx->ac, t_list, vertex_index, voffset,
+ LLVMValueRef voffset = LLVMConstInt(ctx->ac.i32, fetch_stride * i, 0);
+ fetches[i] = ac_build_buffer_load_format(&ctx->ac, vb_desc, vertex_index, voffset,
channels_per_fetch, 0, true);
}
if (num_fetches == 1 && channels_per_fetch > 1) {
LLVMValueRef fetch = fetches[0];
for (unsigned i = 0; i < channels_per_fetch; ++i) {
- tmp = LLVMConstInt(ctx->i32, i, false);
+ tmp = LLVMConstInt(ctx->ac.i32, i, false);
fetches[i] = LLVMBuildExtractElement(
ctx->ac.builder, fetch, tmp, "");
}
}
for (unsigned i = num_fetches; i < 4; ++i)
- fetches[i] = LLVMGetUndef(ctx->f32);
+ fetches[i] = LLVMGetUndef(ctx->ac.f32);
if (fix_fetch.u.log_size <= 1 && fix_fetch.u.num_channels_m1 == 2 &&
required_channels == 4) {
* convert it to a signed one.
*/
LLVMValueRef tmp = fetches[3];
- LLVMValueRef c30 = LLVMConstInt(ctx->i32, 30, 0);
+ LLVMValueRef c30 = LLVMConstInt(ctx->ac.i32, 30, 0);
/* First, recover the sign-extended signed integer value. */
if (fix_fetch.u.format == AC_FETCH_FORMAT_SSCALED)
- tmp = LLVMBuildFPToUI(ctx->ac.builder, tmp, ctx->i32, "");
+ tmp = LLVMBuildFPToUI(ctx->ac.builder, tmp, ctx->ac.i32, "");
else
tmp = ac_to_integer(&ctx->ac, tmp);
*/
tmp = LLVMBuildShl(ctx->ac.builder, tmp,
fix_fetch.u.format == AC_FETCH_FORMAT_SNORM ?
- LLVMConstInt(ctx->i32, 7, 0) : c30, "");
+ LLVMConstInt(ctx->ac.i32, 7, 0) : c30, "");
tmp = LLVMBuildAShr(ctx->ac.builder, tmp, c30, "");
/* Convert back to the right type. */
if (fix_fetch.u.format == AC_FETCH_FORMAT_SNORM) {
LLVMValueRef clamp;
- LLVMValueRef neg_one = LLVMConstReal(ctx->f32, -1.0);
- tmp = LLVMBuildSIToFP(ctx->ac.builder, tmp, ctx->f32, "");
+ LLVMValueRef neg_one = LLVMConstReal(ctx->ac.f32, -1.0);
+ tmp = LLVMBuildSIToFP(ctx->ac.builder, tmp, ctx->ac.f32, "");
clamp = LLVMBuildFCmp(ctx->ac.builder, LLVMRealULT, tmp, neg_one, "");
tmp = LLVMBuildSelect(ctx->ac.builder, clamp, neg_one, tmp, "");
} else if (fix_fetch.u.format == AC_FETCH_FORMAT_SSCALED) {
- tmp = LLVMBuildSIToFP(ctx->ac.builder, tmp, ctx->f32, "");
+ tmp = LLVMBuildSIToFP(ctx->ac.builder, tmp, ctx->ac.f32, "");
}
fetches[3] = tmp;
out[i] = ac_to_float(&ctx->ac, fetches[i]);
}
-static void declare_input_vs(
- struct si_shader_context *ctx,
- unsigned input_index,
- const struct tgsi_full_declaration *decl,
- LLVMValueRef out[4])
-{
- si_llvm_load_input_vs(ctx, input_index, out);
-}
-
LLVMValueRef si_get_primitive_id(struct si_shader_context *ctx,
unsigned swizzle)
{
if (swizzle > 0)
- return ctx->i32_0;
+ return ctx->ac.i32_0;
switch (ctx->type) {
case PIPE_SHADER_VERTEX:
return ac_get_arg(&ctx->ac, ctx->args.gs_prim_id);
default:
assert(0);
- return ctx->i32_0;
+ return ctx->ac.i32_0;
}
}
-/**
- * Return the value of tgsi_ind_register for indexing.
- * This is the indirect index with the constant offset added to it.
- */
-LLVMValueRef si_get_indirect_index(struct si_shader_context *ctx,
- const struct tgsi_ind_register *ind,
- unsigned addr_mul,
- int rel_index)
+static LLVMValueRef get_base_vertex(struct ac_shader_abi *abi)
{
- LLVMValueRef result;
-
- if (ind->File == TGSI_FILE_ADDRESS) {
- result = ctx->addrs[ind->Index][ind->Swizzle];
- result = LLVMBuildLoad(ctx->ac.builder, result, "");
- } else {
- struct tgsi_full_src_register src = {};
-
- src.Register.File = ind->File;
- src.Register.Index = ind->Index;
-
- /* Set the second index to 0 for constants. */
- if (ind->File == TGSI_FILE_CONSTANT)
- src.Register.Dimension = 1;
-
- result = ctx->bld_base.emit_fetch_funcs[ind->File](&ctx->bld_base, &src,
- TGSI_TYPE_SIGNED,
- ind->Swizzle);
- result = ac_to_integer(&ctx->ac, result);
- }
+ struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- return ac_build_imad(&ctx->ac, result, LLVMConstInt(ctx->i32, addr_mul, 0),
- LLVMConstInt(ctx->i32, rel_index, 0));
-}
+ /* For non-indexed draws, the base vertex set by the driver
+ * (for direct draws) or the CP (for indirect draws) is the
+ * first vertex ID, but GLSL expects 0 to be returned.
+ */
+ LLVMValueRef vs_state = ac_get_arg(&ctx->ac,
+ ctx->vs_state_bits);
+ LLVMValueRef indexed;
-/**
- * Like si_get_indirect_index, but restricts the return value to a (possibly
- * undefined) value inside [0..num).
- */
-LLVMValueRef si_get_bounded_indirect_index(struct si_shader_context *ctx,
- const struct tgsi_ind_register *ind,
- int rel_index, unsigned num)
-{
- LLVMValueRef result = si_get_indirect_index(ctx, ind, 1, rel_index);
+ indexed = LLVMBuildLShr(ctx->ac.builder, vs_state, ctx->ac.i32_1, "");
+ indexed = LLVMBuildTrunc(ctx->ac.builder, indexed, ctx->ac.i1, "");
- return si_llvm_bound_index(ctx, result, num);
+ return LLVMBuildSelect(ctx->ac.builder, indexed,
+ ac_get_arg(&ctx->ac, ctx->args.base_vertex),
+ ctx->ac.i32_0, "");
}
-static LLVMValueRef get_dw_address_from_generic_indices(struct si_shader_context *ctx,
- LLVMValueRef vertex_dw_stride,
- LLVMValueRef base_addr,
- LLVMValueRef vertex_index,
- LLVMValueRef param_index,
- ubyte name, ubyte index)
+static LLVMValueRef get_block_size(struct ac_shader_abi *abi)
{
- if (vertex_dw_stride) {
- base_addr = ac_build_imad(&ctx->ac, vertex_index,
- vertex_dw_stride, base_addr);
- }
-
- if (param_index) {
- base_addr = ac_build_imad(&ctx->ac, param_index,
- LLVMConstInt(ctx->i32, 4, 0), base_addr);
- }
-
- int param = name == TGSI_SEMANTIC_PATCH ||
- name == TGSI_SEMANTIC_TESSINNER ||
- name == TGSI_SEMANTIC_TESSOUTER ?
- si_shader_io_get_unique_index_patch(name, index) :
- si_shader_io_get_unique_index(name, index, false);
-
- /* Add the base address of the element. */
- return LLVMBuildAdd(ctx->ac.builder, base_addr,
- LLVMConstInt(ctx->i32, param * 4, 0), "");
-}
+ struct si_shader_context *ctx = si_shader_context_from_abi(abi);
-/**
- * Calculate a dword address given an input or output register and a stride.
- */
-static LLVMValueRef get_dw_address(struct si_shader_context *ctx,
- const struct tgsi_full_dst_register *dst,
- const struct tgsi_full_src_register *src,
- LLVMValueRef vertex_dw_stride,
- LLVMValueRef base_addr)
-{
- struct tgsi_shader_info *info = &ctx->shader->selector->info;
- ubyte *name, *index, *array_first;
- int input_index;
- struct tgsi_full_dst_register reg;
- LLVMValueRef vertex_index = NULL;
- LLVMValueRef ind_index = NULL;
-
- /* Set the register description. The address computation is the same
- * for sources and destinations. */
- if (src) {
- reg.Register.File = src->Register.File;
- reg.Register.Index = src->Register.Index;
- reg.Register.Indirect = src->Register.Indirect;
- reg.Register.Dimension = src->Register.Dimension;
- reg.Indirect = src->Indirect;
- reg.Dimension = src->Dimension;
- reg.DimIndirect = src->DimIndirect;
- } else
- reg = *dst;
-
- /* If the register is 2-dimensional (e.g. an array of vertices
- * in a primitive), calculate the base address of the vertex. */
- if (reg.Register.Dimension) {
- if (reg.Dimension.Indirect)
- vertex_index = si_get_indirect_index(ctx, ®.DimIndirect,
- 1, reg.Dimension.Index);
- else
- vertex_index = LLVMConstInt(ctx->i32, reg.Dimension.Index, 0);
- }
+ LLVMValueRef values[3];
+ LLVMValueRef result;
+ unsigned i;
+ unsigned *properties = ctx->shader->selector->info.properties;
- /* Get information about the register. */
- if (reg.Register.File == TGSI_FILE_INPUT) {
- name = info->input_semantic_name;
- index = info->input_semantic_index;
- array_first = info->input_array_first;
- } else if (reg.Register.File == TGSI_FILE_OUTPUT) {
- name = info->output_semantic_name;
- index = info->output_semantic_index;
- array_first = info->output_array_first;
- } else {
- assert(0);
- return NULL;
- }
+ if (properties[TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH] != 0) {
+ unsigned sizes[3] = {
+ properties[TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH],
+ properties[TGSI_PROPERTY_CS_FIXED_BLOCK_HEIGHT],
+ properties[TGSI_PROPERTY_CS_FIXED_BLOCK_DEPTH]
+ };
- if (reg.Register.Indirect) {
- /* Add the relative address of the element. */
- if (reg.Indirect.ArrayID)
- input_index = array_first[reg.Indirect.ArrayID];
- else
- input_index = reg.Register.Index;
+ for (i = 0; i < 3; ++i)
+ values[i] = LLVMConstInt(ctx->ac.i32, sizes[i], 0);
- ind_index = si_get_indirect_index(ctx, ®.Indirect,
- 1, reg.Register.Index - input_index);
+ result = ac_build_gather_values(&ctx->ac, values, 3);
} else {
- input_index = reg.Register.Index;
+ result = ac_get_arg(&ctx->ac, ctx->block_size);
}
- return get_dw_address_from_generic_indices(ctx, vertex_dw_stride,
- base_addr, vertex_index,
- ind_index, name[input_index],
- index[input_index]);
+ return result;
}
-/* The offchip buffer layout for TCS->TES is
- *
- * - attribute 0 of patch 0 vertex 0
- * - attribute 0 of patch 0 vertex 1
- * - attribute 0 of patch 0 vertex 2
- * ...
- * - attribute 0 of patch 1 vertex 0
- * - attribute 0 of patch 1 vertex 1
- * ...
- * - attribute 1 of patch 0 vertex 0
- * - attribute 1 of patch 0 vertex 1
- * ...
- * - per patch attribute 0 of patch 0
- * - per patch attribute 0 of patch 1
- * ...
- *
- * Note that every attribute has 4 components.
- */
-static LLVMValueRef get_tcs_tes_buffer_address(struct si_shader_context *ctx,
- LLVMValueRef rel_patch_id,
- LLVMValueRef vertex_index,
- LLVMValueRef param_index)
+void si_declare_compute_memory(struct si_shader_context *ctx)
{
- LLVMValueRef base_addr, vertices_per_patch, num_patches, total_vertices;
- LLVMValueRef param_stride, constant16;
-
- vertices_per_patch = get_num_tcs_out_vertices(ctx);
- num_patches = si_unpack_param(ctx, ctx->tcs_offchip_layout, 0, 6);
- total_vertices = LLVMBuildMul(ctx->ac.builder, vertices_per_patch,
- num_patches, "");
-
- constant16 = LLVMConstInt(ctx->i32, 16, 0);
- if (vertex_index) {
- base_addr = ac_build_imad(&ctx->ac, rel_patch_id,
- vertices_per_patch, vertex_index);
- param_stride = total_vertices;
- } else {
- base_addr = rel_patch_id;
- param_stride = num_patches;
- }
-
- base_addr = ac_build_imad(&ctx->ac, param_index, param_stride, base_addr);
- base_addr = LLVMBuildMul(ctx->ac.builder, base_addr, constant16, "");
+ struct si_shader_selector *sel = ctx->shader->selector;
+ unsigned lds_size = sel->info.properties[TGSI_PROPERTY_CS_LOCAL_SIZE];
- if (!vertex_index) {
- LLVMValueRef patch_data_offset =
- si_unpack_param(ctx, ctx->tcs_offchip_layout, 12, 20);
+ LLVMTypeRef i8p = LLVMPointerType(ctx->ac.i8, AC_ADDR_SPACE_LDS);
+ LLVMValueRef var;
- base_addr = LLVMBuildAdd(ctx->ac.builder, base_addr,
- patch_data_offset, "");
- }
- return base_addr;
-}
+ assert(!ctx->ac.lds);
-/* This is a generic helper that can be shared by the NIR and TGSI backends */
-static LLVMValueRef get_tcs_tes_buffer_address_from_generic_indices(
- struct si_shader_context *ctx,
- LLVMValueRef vertex_index,
- LLVMValueRef param_index,
- unsigned param_base,
- ubyte *name,
- ubyte *index,
- bool is_patch)
-{
- unsigned param_index_base;
+ var = LLVMAddGlobalInAddressSpace(ctx->ac.module,
+ LLVMArrayType(ctx->ac.i8, lds_size),
+ "compute_lds",
+ AC_ADDR_SPACE_LDS);
+ LLVMSetAlignment(var, 64 * 1024);
- param_index_base = is_patch ?
- si_shader_io_get_unique_index_patch(name[param_base], index[param_base]) :
- si_shader_io_get_unique_index(name[param_base], index[param_base], false);
+ ctx->ac.lds = LLVMBuildBitCast(ctx->ac.builder, var, i8p, "");
+}
- if (param_index) {
- param_index = LLVMBuildAdd(ctx->ac.builder, param_index,
- LLVMConstInt(ctx->i32, param_index_base, 0),
- "");
- } else {
- param_index = LLVMConstInt(ctx->i32, param_index_base, 0);
- }
+/* Initialize arguments for the shader export intrinsic */
+static void si_llvm_init_vs_export_args(struct si_shader_context *ctx,
+ LLVMValueRef *values,
+ unsigned target,
+ struct ac_export_args *args)
+{
+ args->enabled_channels = 0xf; /* writemask - default is 0xf */
+ args->valid_mask = 0; /* Specify whether the EXEC mask represents the valid mask */
+ args->done = 0; /* Specify whether this is the last export */
+ args->target = target; /* Specify the target we are exporting */
+ args->compr = false;
- return get_tcs_tes_buffer_address(ctx, get_rel_patch_id(ctx),
- vertex_index, param_index);
+ memcpy(&args->out[0], values, sizeof(values[0]) * 4);
}
-static LLVMValueRef get_tcs_tes_buffer_address_from_reg(
- struct si_shader_context *ctx,
- const struct tgsi_full_dst_register *dst,
- const struct tgsi_full_src_register *src)
+static void si_llvm_emit_clipvertex(struct si_shader_context *ctx,
+ struct ac_export_args *pos, LLVMValueRef *out_elts)
{
- struct tgsi_shader_info *info = &ctx->shader->selector->info;
- ubyte *name, *index, *array_first;
- struct tgsi_full_src_register reg;
- LLVMValueRef vertex_index = NULL;
- LLVMValueRef param_index = NULL;
- unsigned param_base;
-
- reg = src ? *src : tgsi_full_src_register_from_dst(dst);
-
- if (reg.Register.Dimension) {
-
- if (reg.Dimension.Indirect)
- vertex_index = si_get_indirect_index(ctx, ®.DimIndirect,
- 1, reg.Dimension.Index);
- else
- vertex_index = LLVMConstInt(ctx->i32, reg.Dimension.Index, 0);
- }
+ unsigned reg_index;
+ unsigned chan;
+ unsigned const_chan;
+ LLVMValueRef base_elt;
+ LLVMValueRef ptr = ac_get_arg(&ctx->ac, ctx->rw_buffers);
+ LLVMValueRef constbuf_index = LLVMConstInt(ctx->ac.i32,
+ SI_VS_CONST_CLIP_PLANES, 0);
+ LLVMValueRef const_resource = ac_build_load_to_sgpr(&ctx->ac, ptr, constbuf_index);
- /* Get information about the register. */
- if (reg.Register.File == TGSI_FILE_INPUT) {
- name = info->input_semantic_name;
- index = info->input_semantic_index;
- array_first = info->input_array_first;
- } else if (reg.Register.File == TGSI_FILE_OUTPUT) {
- name = info->output_semantic_name;
- index = info->output_semantic_index;
- array_first = info->output_array_first;
- } else {
- assert(0);
- return NULL;
- }
+ for (reg_index = 0; reg_index < 2; reg_index ++) {
+ struct ac_export_args *args = &pos[2 + reg_index];
- if (reg.Register.Indirect) {
- if (reg.Indirect.ArrayID)
- param_base = array_first[reg.Indirect.ArrayID];
- else
- param_base = reg.Register.Index;
+ args->out[0] =
+ args->out[1] =
+ args->out[2] =
+ args->out[3] = LLVMConstReal(ctx->ac.f32, 0.0f);
- param_index = si_get_indirect_index(ctx, ®.Indirect,
- 1, reg.Register.Index - param_base);
+ /* Compute dot products of position and user clip plane vectors */
+ for (chan = 0; chan < 4; chan++) {
+ for (const_chan = 0; const_chan < 4; const_chan++) {
+ LLVMValueRef addr =
+ LLVMConstInt(ctx->ac.i32, ((reg_index * 4 + chan) * 4 +
+ const_chan) * 4, 0);
+ base_elt = si_buffer_load_const(ctx, const_resource,
+ addr);
+ args->out[chan] = ac_build_fmad(&ctx->ac, base_elt,
+ out_elts[const_chan], args->out[chan]);
+ }
+ }
- } else {
- param_base = reg.Register.Index;
+ args->enabled_channels = 0xf;
+ args->valid_mask = 0;
+ args->done = 0;
+ args->target = V_008DFC_SQ_EXP_POS + 2 + reg_index;
+ args->compr = 0;
}
-
- return get_tcs_tes_buffer_address_from_generic_indices(ctx, vertex_index,
- param_index, param_base,
- name, index, !reg.Register.Dimension);
}
-static LLVMValueRef buffer_load(struct lp_build_tgsi_context *bld_base,
- LLVMTypeRef type, unsigned swizzle,
- LLVMValueRef buffer, LLVMValueRef offset,
- LLVMValueRef base, bool can_speculate)
+static void si_dump_streamout(struct pipe_stream_output_info *so)
{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMValueRef value, value2;
- LLVMTypeRef vec_type = LLVMVectorType(type, 4);
-
- if (swizzle == ~0) {
- value = ac_build_buffer_load(&ctx->ac, buffer, 4, NULL, base, offset,
- 0, ac_glc, can_speculate, false);
-
- return LLVMBuildBitCast(ctx->ac.builder, value, vec_type, "");
- }
+ unsigned i;
- if (!llvm_type_is_64bit(ctx, type)) {
- value = ac_build_buffer_load(&ctx->ac, buffer, 4, NULL, base, offset,
- 0, ac_glc, can_speculate, false);
+ if (so->num_outputs)
+ fprintf(stderr, "STREAMOUT\n");
- value = LLVMBuildBitCast(ctx->ac.builder, value, vec_type, "");
- return LLVMBuildExtractElement(ctx->ac.builder, value,
- LLVMConstInt(ctx->i32, swizzle, 0), "");
+ for (i = 0; i < so->num_outputs; i++) {
+ unsigned mask = ((1 << so->output[i].num_components) - 1) <<
+ so->output[i].start_component;
+ fprintf(stderr, " %i: BUF%i[%i..%i] <- OUT[%i].%s%s%s%s\n",
+ i, so->output[i].output_buffer,
+ so->output[i].dst_offset, so->output[i].dst_offset + so->output[i].num_components - 1,
+ so->output[i].register_index,
+ mask & 1 ? "x" : "",
+ mask & 2 ? "y" : "",
+ mask & 4 ? "z" : "",
+ mask & 8 ? "w" : "");
}
-
- value = ac_build_buffer_load(&ctx->ac, buffer, 1, NULL, base, offset,
- swizzle * 4, ac_glc, can_speculate, false);
-
- value2 = ac_build_buffer_load(&ctx->ac, buffer, 1, NULL, base, offset,
- swizzle * 4 + 4, ac_glc, can_speculate, false);
-
- return si_llvm_emit_fetch_64bit(bld_base, type, value, value2);
}
-/**
- * Load from LSHS LDS storage.
- *
- * \param type output value type
- * \param swizzle offset (typically 0..3); it can be ~0, which loads a vec4
- * \param dw_addr address in dwords
- */
-static LLVMValueRef lshs_lds_load(struct lp_build_tgsi_context *bld_base,
- LLVMTypeRef type, unsigned swizzle,
- LLVMValueRef dw_addr)
+void si_emit_streamout_output(struct si_shader_context *ctx,
+ LLVMValueRef const *so_buffers,
+ LLVMValueRef const *so_write_offsets,
+ struct pipe_stream_output *stream_out,
+ struct si_shader_output_values *shader_out)
{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMValueRef value;
-
- if (swizzle == ~0) {
- LLVMValueRef values[TGSI_NUM_CHANNELS];
-
- for (unsigned chan = 0; chan < TGSI_NUM_CHANNELS; chan++)
- values[chan] = lshs_lds_load(bld_base, type, chan, dw_addr);
+ unsigned buf_idx = stream_out->output_buffer;
+ unsigned start = stream_out->start_component;
+ unsigned num_comps = stream_out->num_components;
+ LLVMValueRef out[4];
- return ac_build_gather_values(&ctx->ac, values,
- TGSI_NUM_CHANNELS);
- }
+ assert(num_comps && num_comps <= 4);
+ if (!num_comps || num_comps > 4)
+ return;
- /* Split 64-bit loads. */
- if (llvm_type_is_64bit(ctx, type)) {
- LLVMValueRef lo, hi;
+ /* Load the output as int. */
+ for (int j = 0; j < num_comps; j++) {
+ assert(stream_out->stream == shader_out->vertex_stream[start + j]);
- lo = lshs_lds_load(bld_base, ctx->i32, swizzle, dw_addr);
- hi = lshs_lds_load(bld_base, ctx->i32, swizzle + 1, dw_addr);
- return si_llvm_emit_fetch_64bit(bld_base, type, lo, hi);
+ out[j] = ac_to_integer(&ctx->ac, shader_out->values[start + j]);
}
- dw_addr = LLVMBuildAdd(ctx->ac.builder, dw_addr,
- LLVMConstInt(ctx->i32, swizzle, 0), "");
-
- value = ac_lds_load(&ctx->ac, dw_addr);
-
- return LLVMBuildBitCast(ctx->ac.builder, value, type, "");
-}
+ /* Pack the output. */
+ LLVMValueRef vdata = NULL;
-/**
- * Store to LSHS LDS storage.
- *
- * \param swizzle offset (typically 0..3)
- * \param dw_addr address in dwords
- * \param value value to store
- */
-static void lshs_lds_store(struct si_shader_context *ctx,
- unsigned dw_offset_imm, LLVMValueRef dw_addr,
- LLVMValueRef value)
-{
- dw_addr = LLVMBuildAdd(ctx->ac.builder, dw_addr,
- LLVMConstInt(ctx->i32, dw_offset_imm, 0), "");
+ switch (num_comps) {
+ case 1: /* as i32 */
+ vdata = out[0];
+ break;
+ case 2: /* as v2i32 */
+ case 3: /* as v3i32 */
+ if (ac_has_vec3_support(ctx->screen->info.chip_class, false)) {
+ vdata = ac_build_gather_values(&ctx->ac, out, num_comps);
+ break;
+ }
+ /* as v4i32 (aligned to 4) */
+ out[3] = LLVMGetUndef(ctx->ac.i32);
+ /* fall through */
+ case 4: /* as v4i32 */
+ vdata = ac_build_gather_values(&ctx->ac, out, util_next_power_of_two(num_comps));
+ break;
+ }
- ac_lds_store(&ctx->ac, dw_addr, value);
+ ac_build_buffer_store_dword(&ctx->ac, so_buffers[buf_idx],
+ vdata, num_comps,
+ so_write_offsets[buf_idx],
+ ctx->ac.i32_0,
+ stream_out->dst_offset * 4, ac_glc | ac_slc);
}
-enum si_tess_ring {
- TCS_FACTOR_RING,
- TESS_OFFCHIP_RING_TCS,
- TESS_OFFCHIP_RING_TES,
-};
-
-static LLVMValueRef get_tess_ring_descriptor(struct si_shader_context *ctx,
- enum si_tess_ring ring)
+/**
+ * Write streamout data to buffers for vertex stream @p stream (different
+ * vertex streams can occur for GS copy shaders).
+ */
+void si_llvm_emit_streamout(struct si_shader_context *ctx,
+ struct si_shader_output_values *outputs,
+ unsigned noutput, unsigned stream)
{
+ struct si_shader_selector *sel = ctx->shader->selector;
+ struct pipe_stream_output_info *so = &sel->so;
LLVMBuilderRef builder = ctx->ac.builder;
- LLVMValueRef addr = ac_get_arg(&ctx->ac,
- ring == TESS_OFFCHIP_RING_TES ?
- ctx->tes_offchip_addr :
- ctx->tcs_out_lds_layout);
-
- /* TCS only receives high 13 bits of the address. */
- if (ring == TESS_OFFCHIP_RING_TCS || ring == TCS_FACTOR_RING) {
- addr = LLVMBuildAnd(builder, addr,
- LLVMConstInt(ctx->i32, 0xfff80000, 0), "");
- }
+ int i;
- if (ring == TCS_FACTOR_RING) {
- unsigned tf_offset = ctx->screen->tess_offchip_ring_size;
- addr = LLVMBuildAdd(builder, addr,
- LLVMConstInt(ctx->i32, tf_offset, 0), "");
- }
+ /* Get bits [22:16], i.e. (so_param >> 16) & 127; */
+ LLVMValueRef so_vtx_count =
+ si_unpack_param(ctx, ctx->streamout_config, 16, 7);
- uint32_t rsrc3 = S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X) |
- S_008F0C_DST_SEL_Y(V_008F0C_SQ_SEL_Y) |
- S_008F0C_DST_SEL_Z(V_008F0C_SQ_SEL_Z) |
- S_008F0C_DST_SEL_W(V_008F0C_SQ_SEL_W);
+ LLVMValueRef tid = ac_get_thread_id(&ctx->ac);
- if (ctx->screen->info.chip_class >= GFX10)
- rsrc3 |= S_008F0C_FORMAT(V_008F0C_IMG_FORMAT_32_FLOAT) |
- S_008F0C_OOB_SELECT(3) |
- S_008F0C_RESOURCE_LEVEL(1);
- else
- rsrc3 |= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT) |
- S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32);
+ /* can_emit = tid < so_vtx_count; */
+ LLVMValueRef can_emit =
+ LLVMBuildICmp(builder, LLVMIntULT, tid, so_vtx_count, "");
- LLVMValueRef desc[4];
- desc[0] = addr;
- desc[1] = LLVMConstInt(ctx->i32,
- S_008F04_BASE_ADDRESS_HI(ctx->screen->info.address32_hi), 0);
- desc[2] = LLVMConstInt(ctx->i32, 0xffffffff, 0);
- desc[3] = LLVMConstInt(ctx->i32, rsrc3, false);
+ /* Emit the streamout code conditionally. This actually avoids
+ * out-of-bounds buffer access. The hw tells us via the SGPR
+ * (so_vtx_count) which threads are allowed to emit streamout data. */
+ ac_build_ifcc(&ctx->ac, can_emit, 6501);
+ {
+ /* The buffer offset is computed as follows:
+ * ByteOffset = streamout_offset[buffer_id]*4 +
+ * (streamout_write_index + thread_id)*stride[buffer_id] +
+ * attrib_offset
+ */
- return ac_build_gather_values(&ctx->ac, desc, 4);
-}
+ LLVMValueRef so_write_index =
+ ac_get_arg(&ctx->ac,
+ ctx->streamout_write_index);
-static LLVMValueRef fetch_input_tcs(
- struct lp_build_tgsi_context *bld_base,
- const struct tgsi_full_src_register *reg,
- enum tgsi_opcode_type type, unsigned swizzle_in)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMValueRef dw_addr, stride;
- unsigned swizzle = swizzle_in & 0xffff;
- stride = get_tcs_in_vertex_dw_stride(ctx);
- dw_addr = get_tcs_in_current_patch_offset(ctx);
- dw_addr = get_dw_address(ctx, NULL, reg, stride, dw_addr);
-
- return lshs_lds_load(bld_base, tgsi2llvmtype(bld_base, type), swizzle, dw_addr);
-}
+ /* Compute (streamout_write_index + thread_id). */
+ so_write_index = LLVMBuildAdd(builder, so_write_index, tid, "");
-static LLVMValueRef si_nir_load_tcs_varyings(struct ac_shader_abi *abi,
- LLVMTypeRef type,
- LLVMValueRef vertex_index,
- LLVMValueRef param_index,
- unsigned const_index,
- unsigned location,
- unsigned driver_location,
- unsigned component,
- unsigned num_components,
- bool is_patch,
- bool is_compact,
- bool load_input)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct tgsi_shader_info *info = &ctx->shader->selector->info;
- struct lp_build_tgsi_context *bld_base = &ctx->bld_base;
- LLVMValueRef dw_addr, stride;
+ /* Load the descriptor and compute the write offset for each
+ * enabled buffer. */
+ LLVMValueRef so_write_offset[4] = {};
+ LLVMValueRef so_buffers[4];
+ LLVMValueRef buf_ptr = ac_get_arg(&ctx->ac,
+ ctx->rw_buffers);
- driver_location = driver_location / 4;
+ for (i = 0; i < 4; i++) {
+ if (!so->stride[i])
+ continue;
- if (load_input) {
- stride = get_tcs_in_vertex_dw_stride(ctx);
- dw_addr = get_tcs_in_current_patch_offset(ctx);
- } else {
- if (is_patch) {
- stride = NULL;
- dw_addr = get_tcs_out_current_patch_data_offset(ctx);
- } else {
- stride = get_tcs_out_vertex_dw_stride(ctx);
- dw_addr = get_tcs_out_current_patch_offset(ctx);
- }
- }
+ LLVMValueRef offset = LLVMConstInt(ctx->ac.i32,
+ SI_VS_STREAMOUT_BUF0 + i, 0);
- if (!param_index) {
- param_index = LLVMConstInt(ctx->i32, const_index, 0);
- }
+ so_buffers[i] = ac_build_load_to_sgpr(&ctx->ac, buf_ptr, offset);
- ubyte name;
- ubyte index;
- if (load_input) {
- name = info->input_semantic_name[driver_location];
- index = info->input_semantic_index[driver_location];
- } else {
- name = info->output_semantic_name[driver_location];
- index = info->output_semantic_index[driver_location];
- }
+ LLVMValueRef so_offset = ac_get_arg(&ctx->ac,
+ ctx->streamout_offset[i]);
+ so_offset = LLVMBuildMul(builder, so_offset, LLVMConstInt(ctx->ac.i32, 4, 0), "");
- dw_addr = get_dw_address_from_generic_indices(ctx, stride, dw_addr,
- vertex_index, param_index,
- name, index);
+ so_write_offset[i] = ac_build_imad(&ctx->ac, so_write_index,
+ LLVMConstInt(ctx->ac.i32, so->stride[i]*4, 0),
+ so_offset);
+ }
- LLVMValueRef value[4];
- for (unsigned i = 0; i < num_components; i++) {
- unsigned offset = i;
- if (llvm_type_is_64bit(ctx, type))
- offset *= 2;
+ /* Write streamout data. */
+ for (i = 0; i < so->num_outputs; i++) {
+ unsigned reg = so->output[i].register_index;
- offset += component;
- value[i + component] = lshs_lds_load(bld_base, type, offset, dw_addr);
- }
+ if (reg >= noutput)
+ continue;
- return ac_build_varying_gather_values(&ctx->ac, value, num_components, component);
-}
+ if (stream != so->output[i].stream)
+ continue;
-static LLVMValueRef fetch_output_tcs(
- struct lp_build_tgsi_context *bld_base,
- const struct tgsi_full_src_register *reg,
- enum tgsi_opcode_type type, unsigned swizzle_in)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMValueRef dw_addr, stride;
- unsigned swizzle = (swizzle_in & 0xffff);
-
- if (reg->Register.Dimension) {
- stride = get_tcs_out_vertex_dw_stride(ctx);
- dw_addr = get_tcs_out_current_patch_offset(ctx);
- dw_addr = get_dw_address(ctx, NULL, reg, stride, dw_addr);
- } else {
- dw_addr = get_tcs_out_current_patch_data_offset(ctx);
- dw_addr = get_dw_address(ctx, NULL, reg, NULL, dw_addr);
+ si_emit_streamout_output(ctx, so_buffers, so_write_offset,
+ &so->output[i], &outputs[reg]);
+ }
}
-
- return lshs_lds_load(bld_base, tgsi2llvmtype(bld_base, type), swizzle, dw_addr);
+ ac_build_endif(&ctx->ac, 6501);
}
-static LLVMValueRef fetch_input_tes(
- struct lp_build_tgsi_context *bld_base,
- const struct tgsi_full_src_register *reg,
- enum tgsi_opcode_type type, unsigned swizzle_in)
+static void si_export_param(struct si_shader_context *ctx, unsigned index,
+ LLVMValueRef *values)
{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMValueRef base, addr;
- unsigned swizzle = (swizzle_in & 0xffff);
-
- base = ac_get_arg(&ctx->ac, ctx->tcs_offchip_offset);
- addr = get_tcs_tes_buffer_address_from_reg(ctx, NULL, reg);
+ struct ac_export_args args;
- return buffer_load(bld_base, tgsi2llvmtype(bld_base, type), swizzle,
- ctx->tess_offchip_ring, base, addr, true);
+ si_llvm_init_vs_export_args(ctx, values,
+ V_008DFC_SQ_EXP_PARAM + index, &args);
+ ac_build_export(&ctx->ac, &args);
}
-LLVMValueRef si_nir_load_input_tes(struct ac_shader_abi *abi,
- LLVMTypeRef type,
- LLVMValueRef vertex_index,
- LLVMValueRef param_index,
- unsigned const_index,
- unsigned location,
- unsigned driver_location,
- unsigned component,
- unsigned num_components,
- bool is_patch,
- bool is_compact,
- bool load_input)
+static void si_build_param_exports(struct si_shader_context *ctx,
+ struct si_shader_output_values *outputs,
+ unsigned noutput)
{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct tgsi_shader_info *info = &ctx->shader->selector->info;
- LLVMValueRef base, addr;
-
- driver_location = driver_location / 4;
+ struct si_shader *shader = ctx->shader;
+ unsigned param_count = 0;
- base = ac_get_arg(&ctx->ac, ctx->tcs_offchip_offset);
+ for (unsigned i = 0; i < noutput; i++) {
+ unsigned semantic_name = outputs[i].semantic_name;
+ unsigned semantic_index = outputs[i].semantic_index;
- if (!param_index) {
- param_index = LLVMConstInt(ctx->i32, const_index, 0);
- }
+ if (outputs[i].vertex_stream[0] != 0 &&
+ outputs[i].vertex_stream[1] != 0 &&
+ outputs[i].vertex_stream[2] != 0 &&
+ outputs[i].vertex_stream[3] != 0)
+ continue;
- addr = get_tcs_tes_buffer_address_from_generic_indices(ctx, vertex_index,
- param_index, driver_location,
- info->input_semantic_name,
- info->input_semantic_index,
- is_patch);
+ switch (semantic_name) {
+ case TGSI_SEMANTIC_LAYER:
+ case TGSI_SEMANTIC_VIEWPORT_INDEX:
+ case TGSI_SEMANTIC_CLIPDIST:
+ case TGSI_SEMANTIC_COLOR:
+ case TGSI_SEMANTIC_BCOLOR:
+ case TGSI_SEMANTIC_PRIMID:
+ case TGSI_SEMANTIC_FOG:
+ case TGSI_SEMANTIC_TEXCOORD:
+ case TGSI_SEMANTIC_GENERIC:
+ break;
+ default:
+ continue;
+ }
- /* TODO: This will generate rather ordinary llvm code, although it
- * should be easy for the optimiser to fix up. In future we might want
- * to refactor buffer_load(), but for now this maximises code sharing
- * between the NIR and TGSI backends.
- */
- LLVMValueRef value[4];
- for (unsigned i = 0; i < num_components; i++) {
- unsigned offset = i;
- if (llvm_type_is_64bit(ctx, type)) {
- offset *= 2;
- if (offset == 4) {
- addr = get_tcs_tes_buffer_address_from_generic_indices(ctx,
- vertex_index,
- param_index,
- driver_location + 1,
- info->input_semantic_name,
- info->input_semantic_index,
- is_patch);
- }
+ if ((semantic_name != TGSI_SEMANTIC_GENERIC ||
+ semantic_index < SI_MAX_IO_GENERIC) &&
+ shader->key.opt.kill_outputs &
+ (1ull << si_shader_io_get_unique_index(semantic_name,
+ semantic_index, true)))
+ continue;
- offset = offset % 4;
- }
+ si_export_param(ctx, param_count, outputs[i].values);
- offset += component;
- value[i + component] = buffer_load(&ctx->bld_base, type, offset,
- ctx->tess_offchip_ring, base, addr, true);
+ assert(i < ARRAY_SIZE(shader->info.vs_output_param_offset));
+ shader->info.vs_output_param_offset[i] = param_count++;
}
- return ac_build_varying_gather_values(&ctx->ac, value, num_components, component);
+ shader->info.nr_param_exports = param_count;
}
-static void store_output_tcs(struct lp_build_tgsi_context *bld_base,
- const struct tgsi_full_instruction *inst,
- const struct tgsi_opcode_info *info,
- unsigned index,
- LLVMValueRef dst[4])
+/**
+ * Vertex color clamping.
+ *
+ * This uses a state constant loaded in a user data SGPR and
+ * an IF statement is added that clamps all colors if the constant
+ * is true.
+ */
+static void si_vertex_color_clamping(struct si_shader_context *ctx,
+ struct si_shader_output_values *outputs,
+ unsigned noutput)
{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- const struct tgsi_full_dst_register *reg = &inst->Dst[index];
- const struct tgsi_shader_info *sh_info = &ctx->shader->selector->info;
- unsigned chan_index;
- LLVMValueRef dw_addr, stride;
- LLVMValueRef buffer, base, buf_addr;
- LLVMValueRef values[4];
- bool skip_lds_store;
- bool is_tess_factor = false, is_tess_inner = false;
-
- /* Only handle per-patch and per-vertex outputs here.
- * Vectors will be lowered to scalars and this function will be called again.
- */
- if (reg->Register.File != TGSI_FILE_OUTPUT ||
- (dst[0] && LLVMGetTypeKind(LLVMTypeOf(dst[0])) == LLVMVectorTypeKind)) {
- si_llvm_emit_store(bld_base, inst, info, index, dst);
- return;
- }
+ LLVMValueRef addr[SI_MAX_VS_OUTPUTS][4];
+ bool has_colors = false;
- if (reg->Register.Dimension) {
- stride = get_tcs_out_vertex_dw_stride(ctx);
- dw_addr = get_tcs_out_current_patch_offset(ctx);
- dw_addr = get_dw_address(ctx, reg, NULL, stride, dw_addr);
- skip_lds_store = !sh_info->reads_pervertex_outputs;
- } else {
- dw_addr = get_tcs_out_current_patch_data_offset(ctx);
- dw_addr = get_dw_address(ctx, reg, NULL, NULL, dw_addr);
- skip_lds_store = !sh_info->reads_perpatch_outputs;
-
- if (!reg->Register.Indirect) {
- int name = sh_info->output_semantic_name[reg->Register.Index];
-
- /* Always write tess factors into LDS for the TCS epilog. */
- if (name == TGSI_SEMANTIC_TESSINNER ||
- name == TGSI_SEMANTIC_TESSOUTER) {
- /* The epilog doesn't read LDS if invocation 0 defines tess factors. */
- skip_lds_store = !sh_info->reads_tessfactor_outputs &&
- ctx->shader->selector->tcs_info.tessfactors_are_def_in_all_invocs;
- is_tess_factor = true;
- is_tess_inner = name == TGSI_SEMANTIC_TESSINNER;
- }
+ /* Store original colors to alloca variables. */
+ for (unsigned i = 0; i < noutput; i++) {
+ if (outputs[i].semantic_name != TGSI_SEMANTIC_COLOR &&
+ outputs[i].semantic_name != TGSI_SEMANTIC_BCOLOR)
+ continue;
+
+ for (unsigned j = 0; j < 4; j++) {
+ addr[i][j] = ac_build_alloca_undef(&ctx->ac, ctx->ac.f32, "");
+ LLVMBuildStore(ctx->ac.builder, outputs[i].values[j], addr[i][j]);
}
+ has_colors = true;
}
- buffer = get_tess_ring_descriptor(ctx, TESS_OFFCHIP_RING_TCS);
-
- base = ac_get_arg(&ctx->ac, ctx->tcs_offchip_offset);
- buf_addr = get_tcs_tes_buffer_address_from_reg(ctx, reg, NULL);
-
- uint32_t writemask = reg->Register.WriteMask;
- while (writemask) {
- chan_index = u_bit_scan(&writemask);
- LLVMValueRef value = dst[chan_index];
-
- if (inst->Instruction.Saturate)
- value = ac_build_clamp(&ctx->ac, value);
-
- /* Skip LDS stores if there is no LDS read of this output. */
- if (!skip_lds_store)
- lshs_lds_store(ctx, chan_index, dw_addr, value);
-
- value = ac_to_integer(&ctx->ac, value);
- values[chan_index] = value;
+ if (!has_colors)
+ return;
- if (reg->Register.WriteMask != 0xF && !is_tess_factor) {
- ac_build_buffer_store_dword(&ctx->ac, buffer, value, 1,
- buf_addr, base,
- 4 * chan_index, ac_glc);
- }
+ /* The state is in the first bit of the user SGPR. */
+ LLVMValueRef cond = ac_get_arg(&ctx->ac, ctx->vs_state_bits);
+ cond = LLVMBuildTrunc(ctx->ac.builder, cond, ctx->ac.i1, "");
- /* Write tess factors into VGPRs for the epilog. */
- if (is_tess_factor &&
- ctx->shader->selector->tcs_info.tessfactors_are_def_in_all_invocs) {
- if (!is_tess_inner) {
- LLVMBuildStore(ctx->ac.builder, value, /* outer */
- ctx->invoc0_tess_factors[chan_index]);
- } else if (chan_index < 2) {
- LLVMBuildStore(ctx->ac.builder, value, /* inner */
- ctx->invoc0_tess_factors[4 + chan_index]);
- }
- }
- }
+ ac_build_ifcc(&ctx->ac, cond, 6502);
- if (reg->Register.WriteMask == 0xF && !is_tess_factor) {
- LLVMValueRef value = ac_build_gather_values(&ctx->ac,
- values, 4);
- ac_build_buffer_store_dword(&ctx->ac, buffer, value, 4, buf_addr,
- base, 0, ac_glc);
- }
-}
+ /* Store clamped colors to alloca variables within the conditional block. */
+ for (unsigned i = 0; i < noutput; i++) {
+ if (outputs[i].semantic_name != TGSI_SEMANTIC_COLOR &&
+ outputs[i].semantic_name != TGSI_SEMANTIC_BCOLOR)
+ continue;
-static void si_nir_store_output_tcs(struct ac_shader_abi *abi,
- const struct nir_variable *var,
- LLVMValueRef vertex_index,
- LLVMValueRef param_index,
- unsigned const_index,
- LLVMValueRef src,
- unsigned writemask)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct tgsi_shader_info *info = &ctx->shader->selector->info;
- const unsigned component = var->data.location_frac;
- const bool is_patch = var->data.patch;
- unsigned driver_location = var->data.driver_location;
- LLVMValueRef dw_addr, stride;
- LLVMValueRef buffer, base, addr;
- LLVMValueRef values[8];
- bool skip_lds_store;
- bool is_tess_factor = false, is_tess_inner = false;
-
- driver_location = driver_location / 4;
- ubyte name = info->output_semantic_name[driver_location];
- ubyte index = info->output_semantic_index[driver_location];
-
- bool is_const = !param_index;
- if (!param_index)
- param_index = LLVMConstInt(ctx->i32, const_index, 0);
-
- if (!is_patch) {
- stride = get_tcs_out_vertex_dw_stride(ctx);
- dw_addr = get_tcs_out_current_patch_offset(ctx);
- dw_addr = get_dw_address_from_generic_indices(ctx, stride, dw_addr,
- vertex_index, param_index,
- name, index);
-
- skip_lds_store = !info->reads_pervertex_outputs;
- } else {
- dw_addr = get_tcs_out_current_patch_data_offset(ctx);
- dw_addr = get_dw_address_from_generic_indices(ctx, NULL, dw_addr,
- vertex_index, param_index,
- name, index);
-
- skip_lds_store = !info->reads_perpatch_outputs;
-
- if (is_const && const_index == 0) {
- int name = info->output_semantic_name[driver_location];
-
- /* Always write tess factors into LDS for the TCS epilog. */
- if (name == TGSI_SEMANTIC_TESSINNER ||
- name == TGSI_SEMANTIC_TESSOUTER) {
- /* The epilog doesn't read LDS if invocation 0 defines tess factors. */
- skip_lds_store = !info->reads_tessfactor_outputs &&
- ctx->shader->selector->tcs_info.tessfactors_are_def_in_all_invocs;
- is_tess_factor = true;
- is_tess_inner = name == TGSI_SEMANTIC_TESSINNER;
- }
+ for (unsigned j = 0; j < 4; j++) {
+ LLVMBuildStore(ctx->ac.builder,
+ ac_build_clamp(&ctx->ac, outputs[i].values[j]),
+ addr[i][j]);
}
}
+ ac_build_endif(&ctx->ac, 6502);
- buffer = get_tess_ring_descriptor(ctx, TESS_OFFCHIP_RING_TCS);
-
- base = ac_get_arg(&ctx->ac, ctx->tcs_offchip_offset);
-
- addr = get_tcs_tes_buffer_address_from_generic_indices(ctx, vertex_index,
- param_index, driver_location,
- info->output_semantic_name,
- info->output_semantic_index,
- is_patch);
-
- for (unsigned chan = 0; chan < 8; chan++) {
- if (!(writemask & (1 << chan)))
+ /* Load clamped colors */
+ for (unsigned i = 0; i < noutput; i++) {
+ if (outputs[i].semantic_name != TGSI_SEMANTIC_COLOR &&
+ outputs[i].semantic_name != TGSI_SEMANTIC_BCOLOR)
continue;
- LLVMValueRef value = ac_llvm_extract_elem(&ctx->ac, src, chan - component);
-
- unsigned buffer_store_offset = chan % 4;
- if (chan == 4) {
- addr = get_tcs_tes_buffer_address_from_generic_indices(ctx,
- vertex_index,
- param_index,
- driver_location + 1,
- info->output_semantic_name,
- info->output_semantic_index,
- is_patch);
- }
-
- /* Skip LDS stores if there is no LDS read of this output. */
- if (!skip_lds_store)
- lshs_lds_store(ctx, chan, dw_addr, value);
-
- value = ac_to_integer(&ctx->ac, value);
- values[chan] = value;
-
- if (writemask != 0xF && !is_tess_factor) {
- ac_build_buffer_store_dword(&ctx->ac, buffer, value, 1,
- addr, base,
- 4 * buffer_store_offset,
- ac_glc);
- }
- /* Write tess factors into VGPRs for the epilog. */
- if (is_tess_factor &&
- ctx->shader->selector->tcs_info.tessfactors_are_def_in_all_invocs) {
- if (!is_tess_inner) {
- LLVMBuildStore(ctx->ac.builder, value, /* outer */
- ctx->invoc0_tess_factors[chan]);
- } else if (chan < 2) {
- LLVMBuildStore(ctx->ac.builder, value, /* inner */
- ctx->invoc0_tess_factors[4 + chan]);
- }
+ for (unsigned j = 0; j < 4; j++) {
+ outputs[i].values[j] =
+ LLVMBuildLoad(ctx->ac.builder, addr[i][j], "");
}
}
-
- if (writemask == 0xF && !is_tess_factor) {
- LLVMValueRef value = ac_build_gather_values(&ctx->ac,
- values, 4);
- ac_build_buffer_store_dword(&ctx->ac, buffer, value, 4, addr,
- base, 0, ac_glc);
- }
}
-LLVMValueRef si_llvm_load_input_gs(struct ac_shader_abi *abi,
- unsigned input_index,
- unsigned vtx_offset_param,
- LLVMTypeRef type,
- unsigned swizzle)
+/* Generate export instructions for hardware VS shader stage or NGG GS stage
+ * (position and parameter data only).
+ */
+void si_llvm_export_vs(struct si_shader_context *ctx,
+ struct si_shader_output_values *outputs,
+ unsigned noutput)
{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct lp_build_tgsi_context *bld_base = &ctx->bld_base;
struct si_shader *shader = ctx->shader;
- LLVMValueRef vtx_offset, soffset;
- struct tgsi_shader_info *info = &shader->selector->info;
- unsigned semantic_name = info->input_semantic_name[input_index];
- unsigned semantic_index = info->input_semantic_index[input_index];
- unsigned param;
- LLVMValueRef value;
-
- param = si_shader_io_get_unique_index(semantic_name, semantic_index, false);
+ struct ac_export_args pos_args[4] = {};
+ LLVMValueRef psize_value = NULL, edgeflag_value = NULL, layer_value = NULL, viewport_index_value = NULL;
+ unsigned pos_idx;
+ int i;
- /* GFX9 has the ESGS ring in LDS. */
- if (ctx->screen->info.chip_class >= GFX9) {
- unsigned index = vtx_offset_param;
+ si_vertex_color_clamping(ctx, outputs, noutput);
- switch (index / 2) {
- case 0:
- vtx_offset = si_unpack_param(ctx, ctx->gs_vtx01_offset,
- index % 2 ? 16 : 0, 16);
+ /* Build position exports. */
+ for (i = 0; i < noutput; i++) {
+ switch (outputs[i].semantic_name) {
+ case TGSI_SEMANTIC_POSITION:
+ si_llvm_init_vs_export_args(ctx, outputs[i].values,
+ V_008DFC_SQ_EXP_POS, &pos_args[0]);
break;
- case 1:
- vtx_offset = si_unpack_param(ctx, ctx->gs_vtx23_offset,
- index % 2 ? 16 : 0, 16);
+ case TGSI_SEMANTIC_PSIZE:
+ psize_value = outputs[i].values[0];
break;
- case 2:
- vtx_offset = si_unpack_param(ctx, ctx->gs_vtx45_offset,
- index % 2 ? 16 : 0, 16);
+ case TGSI_SEMANTIC_LAYER:
+ layer_value = outputs[i].values[0];
break;
- default:
- assert(0);
- return NULL;
- }
-
- unsigned offset = param * 4 + swizzle;
- vtx_offset = LLVMBuildAdd(ctx->ac.builder, vtx_offset,
- LLVMConstInt(ctx->i32, offset, false), "");
-
- LLVMValueRef ptr = ac_build_gep0(&ctx->ac, ctx->esgs_ring, vtx_offset);
- LLVMValueRef value = LLVMBuildLoad(ctx->ac.builder, ptr, "");
- if (llvm_type_is_64bit(ctx, type)) {
- ptr = LLVMBuildGEP(ctx->ac.builder, ptr,
- &ctx->ac.i32_1, 1, "");
- LLVMValueRef values[2] = {
- value,
- LLVMBuildLoad(ctx->ac.builder, ptr, "")
- };
- value = ac_build_gather_values(&ctx->ac, values, 2);
- }
- return LLVMBuildBitCast(ctx->ac.builder, value, type, "");
- }
-
- /* GFX6: input load from the ESGS ring in memory. */
- if (swizzle == ~0) {
- LLVMValueRef values[TGSI_NUM_CHANNELS];
- unsigned chan;
- for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) {
- values[chan] = si_llvm_load_input_gs(abi, input_index, vtx_offset_param,
- type, chan);
- }
- return ac_build_gather_values(&ctx->ac, values,
- TGSI_NUM_CHANNELS);
- }
-
- /* Get the vertex offset parameter on GFX6. */
- LLVMValueRef gs_vtx_offset = ac_get_arg(&ctx->ac,
- ctx->gs_vtx_offset[vtx_offset_param]);
-
- vtx_offset = LLVMBuildMul(ctx->ac.builder, gs_vtx_offset,
- LLVMConstInt(ctx->i32, 4, 0), "");
-
- soffset = LLVMConstInt(ctx->i32, (param * 4 + swizzle) * 256, 0);
-
- value = ac_build_buffer_load(&ctx->ac, ctx->esgs_ring, 1, ctx->i32_0,
- vtx_offset, soffset, 0, ac_glc, true, false);
- if (llvm_type_is_64bit(ctx, type)) {
- LLVMValueRef value2;
- soffset = LLVMConstInt(ctx->i32, (param * 4 + swizzle + 1) * 256, 0);
-
- value2 = ac_build_buffer_load(&ctx->ac, ctx->esgs_ring, 1,
- ctx->i32_0, vtx_offset, soffset,
- 0, ac_glc, true, false);
- return si_llvm_emit_fetch_64bit(bld_base, type, value, value2);
- }
- return LLVMBuildBitCast(ctx->ac.builder, value, type, "");
-}
-
-static LLVMValueRef si_nir_load_input_gs(struct ac_shader_abi *abi,
- unsigned location,
- unsigned driver_location,
- unsigned component,
- unsigned num_components,
- unsigned vertex_index,
- unsigned const_index,
- LLVMTypeRef type)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
-
- LLVMValueRef value[4];
- for (unsigned i = 0; i < num_components; i++) {
- unsigned offset = i;
- if (llvm_type_is_64bit(ctx, type))
- offset *= 2;
-
- offset += component;
- value[i + component] = si_llvm_load_input_gs(&ctx->abi, driver_location / 4 + const_index,
- vertex_index, type, offset);
- }
-
- return ac_build_varying_gather_values(&ctx->ac, value, num_components, component);
-}
-
-static LLVMValueRef fetch_input_gs(
- struct lp_build_tgsi_context *bld_base,
- const struct tgsi_full_src_register *reg,
- enum tgsi_opcode_type type,
- unsigned swizzle_in)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- struct tgsi_shader_info *info = &ctx->shader->selector->info;
- unsigned swizzle = swizzle_in & 0xffff;
-
- unsigned semantic_name = info->input_semantic_name[reg->Register.Index];
- if (swizzle != ~0 && semantic_name == TGSI_SEMANTIC_PRIMID)
- return si_get_primitive_id(ctx, swizzle);
-
- if (!reg->Register.Dimension)
- return NULL;
-
- return si_llvm_load_input_gs(&ctx->abi, reg->Register.Index,
- reg->Dimension.Index,
- tgsi2llvmtype(bld_base, type),
- swizzle);
-}
-
-static int lookup_interp_param_index(unsigned interpolate, unsigned location)
-{
- switch (interpolate) {
- case TGSI_INTERPOLATE_CONSTANT:
- return 0;
-
- case TGSI_INTERPOLATE_LINEAR:
- if (location == TGSI_INTERPOLATE_LOC_SAMPLE)
- return SI_PARAM_LINEAR_SAMPLE;
- else if (location == TGSI_INTERPOLATE_LOC_CENTROID)
- return SI_PARAM_LINEAR_CENTROID;
- else
- return SI_PARAM_LINEAR_CENTER;
- break;
- case TGSI_INTERPOLATE_COLOR:
- case TGSI_INTERPOLATE_PERSPECTIVE:
- if (location == TGSI_INTERPOLATE_LOC_SAMPLE)
- return SI_PARAM_PERSP_SAMPLE;
- else if (location == TGSI_INTERPOLATE_LOC_CENTROID)
- return SI_PARAM_PERSP_CENTROID;
- else
- return SI_PARAM_PERSP_CENTER;
- break;
- default:
- fprintf(stderr, "Warning: Unhandled interpolation mode.\n");
- return -1;
- }
-}
-
-static LLVMValueRef si_build_fs_interp(struct si_shader_context *ctx,
- unsigned attr_index, unsigned chan,
- LLVMValueRef prim_mask,
- LLVMValueRef i, LLVMValueRef j)
-{
- if (i || j) {
- return ac_build_fs_interp(&ctx->ac,
- LLVMConstInt(ctx->i32, chan, 0),
- LLVMConstInt(ctx->i32, attr_index, 0),
- prim_mask, i, j);
- }
- return ac_build_fs_interp_mov(&ctx->ac,
- LLVMConstInt(ctx->i32, 2, 0), /* P0 */
- LLVMConstInt(ctx->i32, chan, 0),
- LLVMConstInt(ctx->i32, attr_index, 0),
- prim_mask);
-}
-
-/**
- * Interpolate a fragment shader input.
- *
- * @param ctx context
- * @param input_index index of the input in hardware
- * @param semantic_name TGSI_SEMANTIC_*
- * @param semantic_index semantic index
- * @param num_interp_inputs number of all interpolated inputs (= BCOLOR offset)
- * @param colors_read_mask color components read (4 bits for each color, 8 bits in total)
- * @param interp_param interpolation weights (i,j)
- * @param prim_mask SI_PARAM_PRIM_MASK
- * @param face SI_PARAM_FRONT_FACE
- * @param result the return value (4 components)
- */
-static void interp_fs_input(struct si_shader_context *ctx,
- unsigned input_index,
- unsigned semantic_name,
- unsigned semantic_index,
- unsigned num_interp_inputs,
- unsigned colors_read_mask,
- LLVMValueRef interp_param,
- LLVMValueRef prim_mask,
- LLVMValueRef face,
- LLVMValueRef result[4])
-{
- LLVMValueRef i = NULL, j = NULL;
- unsigned chan;
-
- /* fs.constant returns the param from the middle vertex, so it's not
- * really useful for flat shading. It's meant to be used for custom
- * interpolation (but the intrinsic can't fetch from the other two
- * vertices).
- *
- * Luckily, it doesn't matter, because we rely on the FLAT_SHADE state
- * to do the right thing. The only reason we use fs.constant is that
- * fs.interp cannot be used on integers, because they can be equal
- * to NaN.
- *
- * When interp is false we will use fs.constant or for newer llvm,
- * amdgcn.interp.mov.
- */
- bool interp = interp_param != NULL;
-
- if (interp) {
- interp_param = LLVMBuildBitCast(ctx->ac.builder, interp_param,
- LLVMVectorType(ctx->f32, 2), "");
-
- i = LLVMBuildExtractElement(ctx->ac.builder, interp_param,
- ctx->i32_0, "");
- j = LLVMBuildExtractElement(ctx->ac.builder, interp_param,
- ctx->i32_1, "");
- }
-
- if (semantic_name == TGSI_SEMANTIC_COLOR &&
- ctx->shader->key.part.ps.prolog.color_two_side) {
- LLVMValueRef is_face_positive;
-
- /* If BCOLOR0 is used, BCOLOR1 is at offset "num_inputs + 1",
- * otherwise it's at offset "num_inputs".
- */
- unsigned back_attr_offset = num_interp_inputs;
- if (semantic_index == 1 && colors_read_mask & 0xf)
- back_attr_offset += 1;
-
- is_face_positive = LLVMBuildICmp(ctx->ac.builder, LLVMIntNE,
- face, ctx->i32_0, "");
-
- for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) {
- LLVMValueRef front, back;
-
- front = si_build_fs_interp(ctx,
- input_index, chan,
- prim_mask, i, j);
- back = si_build_fs_interp(ctx,
- back_attr_offset, chan,
- prim_mask, i, j);
-
- result[chan] = LLVMBuildSelect(ctx->ac.builder,
- is_face_positive,
- front,
- back,
- "");
- }
- } else if (semantic_name == TGSI_SEMANTIC_FOG) {
- result[0] = si_build_fs_interp(ctx, input_index,
- 0, prim_mask, i, j);
- result[1] =
- result[2] = LLVMConstReal(ctx->f32, 0.0f);
- result[3] = LLVMConstReal(ctx->f32, 1.0f);
- } else {
- for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) {
- result[chan] = si_build_fs_interp(ctx,
- input_index, chan,
- prim_mask, i, j);
- }
- }
-}
-
-void si_llvm_load_input_fs(
- struct si_shader_context *ctx,
- unsigned input_index,
- LLVMValueRef out[4])
-{
- struct si_shader *shader = ctx->shader;
- struct tgsi_shader_info *info = &shader->selector->info;
- LLVMValueRef main_fn = ctx->main_fn;
- LLVMValueRef interp_param = NULL;
- int interp_param_idx;
- enum tgsi_semantic semantic_name = info->input_semantic_name[input_index];
- unsigned semantic_index = info->input_semantic_index[input_index];
- enum tgsi_interpolate_mode interp_mode = info->input_interpolate[input_index];
- enum tgsi_interpolate_loc interp_loc = info->input_interpolate_loc[input_index];
-
- /* Get colors from input VGPRs (set by the prolog). */
- if (semantic_name == TGSI_SEMANTIC_COLOR) {
- unsigned colors_read = shader->selector->info.colors_read;
- unsigned mask = colors_read >> (semantic_index * 4);
- unsigned offset = SI_PARAM_POS_FIXED_PT + 1 +
- (semantic_index ? util_bitcount(colors_read & 0xf) : 0);
- LLVMValueRef undef = LLVMGetUndef(ctx->f32);
-
- out[0] = mask & 0x1 ? LLVMGetParam(main_fn, offset++) : undef;
- out[1] = mask & 0x2 ? LLVMGetParam(main_fn, offset++) : undef;
- out[2] = mask & 0x4 ? LLVMGetParam(main_fn, offset++) : undef;
- out[3] = mask & 0x8 ? LLVMGetParam(main_fn, offset++) : undef;
- return;
- }
-
- interp_param_idx = lookup_interp_param_index(interp_mode, interp_loc);
- if (interp_param_idx == -1)
- return;
- else if (interp_param_idx) {
- interp_param = LLVMGetParam(ctx->main_fn, interp_param_idx);
- }
-
- interp_fs_input(ctx, input_index, semantic_name,
- semantic_index, 0, /* this param is unused */
- shader->selector->info.colors_read, interp_param,
- ac_get_arg(&ctx->ac, ctx->args.prim_mask),
- LLVMGetParam(main_fn, SI_PARAM_FRONT_FACE),
- &out[0]);
-}
-
-static void declare_input_fs(
- struct si_shader_context *ctx,
- unsigned input_index,
- const struct tgsi_full_declaration *decl,
- LLVMValueRef out[4])
-{
- si_llvm_load_input_fs(ctx, input_index, out);
-}
-
-LLVMValueRef si_get_sample_id(struct si_shader_context *ctx)
-{
- return si_unpack_param(ctx, ctx->args.ancillary, 8, 4);
-}
-
-static LLVMValueRef get_base_vertex(struct ac_shader_abi *abi)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
-
- /* For non-indexed draws, the base vertex set by the driver
- * (for direct draws) or the CP (for indirect draws) is the
- * first vertex ID, but GLSL expects 0 to be returned.
- */
- LLVMValueRef vs_state = ac_get_arg(&ctx->ac,
- ctx->vs_state_bits);
- LLVMValueRef indexed;
-
- indexed = LLVMBuildLShr(ctx->ac.builder, vs_state, ctx->i32_1, "");
- indexed = LLVMBuildTrunc(ctx->ac.builder, indexed, ctx->i1, "");
-
- return LLVMBuildSelect(ctx->ac.builder, indexed,
- ac_get_arg(&ctx->ac, ctx->args.base_vertex),
- ctx->i32_0, "");
-}
-
-static LLVMValueRef get_block_size(struct ac_shader_abi *abi)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
-
- LLVMValueRef values[3];
- LLVMValueRef result;
- unsigned i;
- unsigned *properties = ctx->shader->selector->info.properties;
-
- if (properties[TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH] != 0) {
- unsigned sizes[3] = {
- properties[TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH],
- properties[TGSI_PROPERTY_CS_FIXED_BLOCK_HEIGHT],
- properties[TGSI_PROPERTY_CS_FIXED_BLOCK_DEPTH]
- };
-
- for (i = 0; i < 3; ++i)
- values[i] = LLVMConstInt(ctx->i32, sizes[i], 0);
-
- result = ac_build_gather_values(&ctx->ac, values, 3);
- } else {
- result = ac_get_arg(&ctx->ac, ctx->block_size);
- }
-
- return result;
-}
-
-/**
- * Load a dword from a constant buffer.
- */
-static LLVMValueRef buffer_load_const(struct si_shader_context *ctx,
- LLVMValueRef resource,
- LLVMValueRef offset)
-{
- return ac_build_buffer_load(&ctx->ac, resource, 1, NULL, offset, NULL,
- 0, 0, true, true);
-}
-
-static LLVMValueRef load_sample_position(struct ac_shader_abi *abi, LLVMValueRef sample_id)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- LLVMValueRef desc = ac_get_arg(&ctx->ac, ctx->rw_buffers);
- LLVMValueRef buf_index = LLVMConstInt(ctx->i32, SI_PS_CONST_SAMPLE_POSITIONS, 0);
- LLVMValueRef resource = ac_build_load_to_sgpr(&ctx->ac, desc, buf_index);
-
- /* offset = sample_id * 8 (8 = 2 floats containing samplepos.xy) */
- LLVMValueRef offset0 = LLVMBuildMul(ctx->ac.builder, sample_id, LLVMConstInt(ctx->i32, 8, 0), "");
- LLVMValueRef offset1 = LLVMBuildAdd(ctx->ac.builder, offset0, LLVMConstInt(ctx->i32, 4, 0), "");
-
- LLVMValueRef pos[4] = {
- buffer_load_const(ctx, resource, offset0),
- buffer_load_const(ctx, resource, offset1),
- LLVMConstReal(ctx->f32, 0),
- LLVMConstReal(ctx->f32, 0)
- };
-
- return ac_build_gather_values(&ctx->ac, pos, 4);
-}
-
-static LLVMValueRef load_sample_mask_in(struct ac_shader_abi *abi)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- return ac_to_integer(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args.sample_coverage));
-}
-
-static LLVMValueRef si_load_tess_coord(struct ac_shader_abi *abi)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- LLVMValueRef coord[4] = {
- ac_get_arg(&ctx->ac, ctx->tes_u),
- ac_get_arg(&ctx->ac, ctx->tes_v),
- ctx->ac.f32_0,
- ctx->ac.f32_0
- };
-
- /* For triangles, the vector should be (u, v, 1-u-v). */
- if (ctx->shader->selector->info.properties[TGSI_PROPERTY_TES_PRIM_MODE] ==
- PIPE_PRIM_TRIANGLES) {
- coord[2] = LLVMBuildFSub(ctx->ac.builder, ctx->ac.f32_1,
- LLVMBuildFAdd(ctx->ac.builder,
- coord[0], coord[1], ""), "");
- }
- return ac_build_gather_values(&ctx->ac, coord, 4);
-}
-
-static LLVMValueRef load_tess_level(struct si_shader_context *ctx,
- unsigned semantic_name)
-{
- LLVMValueRef base, addr;
-
- int param = si_shader_io_get_unique_index_patch(semantic_name, 0);
-
- base = ac_get_arg(&ctx->ac, ctx->tcs_offchip_offset);
- addr = get_tcs_tes_buffer_address(ctx, get_rel_patch_id(ctx), NULL,
- LLVMConstInt(ctx->i32, param, 0));
-
- return buffer_load(&ctx->bld_base, ctx->f32,
- ~0, ctx->tess_offchip_ring, base, addr, true);
-
-}
-
-static LLVMValueRef load_tess_level_default(struct si_shader_context *ctx,
- unsigned semantic_name)
-{
- LLVMValueRef buf, slot, val[4];
- int i, offset;
-
- slot = LLVMConstInt(ctx->i32, SI_HS_CONST_DEFAULT_TESS_LEVELS, 0);
- buf = ac_get_arg(&ctx->ac, ctx->rw_buffers);
- buf = ac_build_load_to_sgpr(&ctx->ac, buf, slot);
- offset = semantic_name == TGSI_SEMANTIC_TESS_DEFAULT_INNER_LEVEL ? 4 : 0;
-
- for (i = 0; i < 4; i++)
- val[i] = buffer_load_const(ctx, buf,
- LLVMConstInt(ctx->i32, (offset + i) * 4, 0));
- return ac_build_gather_values(&ctx->ac, val, 4);
-}
-
-static LLVMValueRef si_load_tess_level(struct ac_shader_abi *abi,
- unsigned varying_id,
- bool load_default_state)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- unsigned semantic_name;
-
- if (load_default_state) {
- switch (varying_id) {
- case VARYING_SLOT_TESS_LEVEL_INNER:
- semantic_name = TGSI_SEMANTIC_TESS_DEFAULT_INNER_LEVEL;
- break;
- case VARYING_SLOT_TESS_LEVEL_OUTER:
- semantic_name = TGSI_SEMANTIC_TESS_DEFAULT_OUTER_LEVEL;
- break;
- default:
- unreachable("unknown tess level");
- }
- return load_tess_level_default(ctx, semantic_name);
- }
-
- switch (varying_id) {
- case VARYING_SLOT_TESS_LEVEL_INNER:
- semantic_name = TGSI_SEMANTIC_TESSINNER;
- break;
- case VARYING_SLOT_TESS_LEVEL_OUTER:
- semantic_name = TGSI_SEMANTIC_TESSOUTER;
- break;
- default:
- unreachable("unknown tess level");
- }
-
- return load_tess_level(ctx, semantic_name);
-
-}
-
-static LLVMValueRef si_load_patch_vertices_in(struct ac_shader_abi *abi)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- if (ctx->type == PIPE_SHADER_TESS_CTRL)
- return si_unpack_param(ctx, ctx->tcs_out_lds_layout, 13, 6);
- else if (ctx->type == PIPE_SHADER_TESS_EVAL)
- return get_num_tcs_out_vertices(ctx);
- else
- unreachable("invalid shader stage for TGSI_SEMANTIC_VERTICESIN");
-}
-
-void si_load_system_value(struct si_shader_context *ctx,
- unsigned index,
- const struct tgsi_full_declaration *decl)
-{
- LLVMValueRef value = 0;
-
- assert(index < RADEON_LLVM_MAX_SYSTEM_VALUES);
-
- switch (decl->Semantic.Name) {
- case TGSI_SEMANTIC_INSTANCEID:
- value = ctx->abi.instance_id;
- break;
-
- case TGSI_SEMANTIC_VERTEXID:
- value = LLVMBuildAdd(ctx->ac.builder,
- ctx->abi.vertex_id,
- ac_get_arg(&ctx->ac, ctx->args.base_vertex), "");
- break;
-
- case TGSI_SEMANTIC_VERTEXID_NOBASE:
- /* Unused. Clarify the meaning in indexed vs. non-indexed
- * draws if this is ever used again. */
- assert(false);
- break;
-
- case TGSI_SEMANTIC_BASEVERTEX:
- value = get_base_vertex(&ctx->abi);
- break;
-
- case TGSI_SEMANTIC_BASEINSTANCE:
- value = ac_get_arg(&ctx->ac, ctx->args.start_instance);
- break;
-
- case TGSI_SEMANTIC_DRAWID:
- value = ac_get_arg(&ctx->ac, ctx->args.draw_id);
- break;
-
- case TGSI_SEMANTIC_INVOCATIONID:
- if (ctx->type == PIPE_SHADER_TESS_CTRL) {
- value = si_unpack_param(ctx, ctx->args.tcs_rel_ids, 8, 5);
- } else if (ctx->type == PIPE_SHADER_GEOMETRY) {
- if (ctx->screen->info.chip_class >= GFX10) {
- value = LLVMBuildAnd(ctx->ac.builder,
- ac_get_arg(&ctx->ac, ctx->args.gs_invocation_id),
- LLVMConstInt(ctx->i32, 127, 0), "");
- } else {
- value = ac_get_arg(&ctx->ac, ctx->args.gs_invocation_id);
- }
- } else {
- assert(!"INVOCATIONID not implemented");
- }
- break;
-
- case TGSI_SEMANTIC_POSITION:
- {
- LLVMValueRef pos[4] = {
- LLVMGetParam(ctx->main_fn, SI_PARAM_POS_X_FLOAT),
- LLVMGetParam(ctx->main_fn, SI_PARAM_POS_Y_FLOAT),
- LLVMGetParam(ctx->main_fn, SI_PARAM_POS_Z_FLOAT),
- ac_build_fdiv(&ctx->ac, ctx->ac.f32_1,
- LLVMGetParam(ctx->main_fn, SI_PARAM_POS_W_FLOAT)),
- };
- value = ac_build_gather_values(&ctx->ac, pos, 4);
- break;
- }
-
- case TGSI_SEMANTIC_FACE:
- value = ac_get_arg(&ctx->ac, ctx->args.front_face);
- break;
-
- case TGSI_SEMANTIC_SAMPLEID:
- value = si_get_sample_id(ctx);
- break;
-
- case TGSI_SEMANTIC_SAMPLEPOS: {
- LLVMValueRef pos[4] = {
- LLVMGetParam(ctx->main_fn, SI_PARAM_POS_X_FLOAT),
- LLVMGetParam(ctx->main_fn, SI_PARAM_POS_Y_FLOAT),
- LLVMConstReal(ctx->f32, 0),
- LLVMConstReal(ctx->f32, 0)
- };
- pos[0] = ac_build_fract(&ctx->ac, pos[0], 32);
- pos[1] = ac_build_fract(&ctx->ac, pos[1], 32);
- value = ac_build_gather_values(&ctx->ac, pos, 4);
- break;
- }
-
- case TGSI_SEMANTIC_SAMPLEMASK:
- /* This can only occur with the OpenGL Core profile, which
- * doesn't support smoothing.
- */
- value = LLVMGetParam(ctx->main_fn, SI_PARAM_SAMPLE_COVERAGE);
- break;
-
- case TGSI_SEMANTIC_TESSCOORD:
- value = si_load_tess_coord(&ctx->abi);
- break;
-
- case TGSI_SEMANTIC_VERTICESIN:
- value = si_load_patch_vertices_in(&ctx->abi);
- break;
-
- case TGSI_SEMANTIC_TESSINNER:
- case TGSI_SEMANTIC_TESSOUTER:
- value = load_tess_level(ctx, decl->Semantic.Name);
- break;
-
- case TGSI_SEMANTIC_TESS_DEFAULT_OUTER_LEVEL:
- case TGSI_SEMANTIC_TESS_DEFAULT_INNER_LEVEL:
- value = load_tess_level_default(ctx, decl->Semantic.Name);
- break;
-
- case TGSI_SEMANTIC_PRIMID:
- value = si_get_primitive_id(ctx, 0);
- break;
-
- case TGSI_SEMANTIC_GRID_SIZE:
- value = ac_get_arg(&ctx->ac, ctx->args.num_work_groups);
- break;
-
- case TGSI_SEMANTIC_BLOCK_SIZE:
- value = get_block_size(&ctx->abi);
- break;
-
- case TGSI_SEMANTIC_BLOCK_ID:
- {
- LLVMValueRef values[3];
-
- for (int i = 0; i < 3; i++) {
- values[i] = ctx->i32_0;
- if (ctx->args.workgroup_ids[i].used) {
- values[i] = ac_get_arg(&ctx->ac, ctx->args.workgroup_ids[i]);
- }
- }
- value = ac_build_gather_values(&ctx->ac, values, 3);
- break;
- }
-
- case TGSI_SEMANTIC_THREAD_ID:
- value = ac_get_arg(&ctx->ac, ctx->args.local_invocation_ids);
- break;
-
- case TGSI_SEMANTIC_HELPER_INVOCATION:
- value = ac_build_load_helper_invocation(&ctx->ac);
- break;
-
- case TGSI_SEMANTIC_SUBGROUP_SIZE:
- value = LLVMConstInt(ctx->i32, ctx->ac.wave_size, 0);
- break;
-
- case TGSI_SEMANTIC_SUBGROUP_INVOCATION:
- value = ac_get_thread_id(&ctx->ac);
- break;
-
- case TGSI_SEMANTIC_SUBGROUP_EQ_MASK:
- {
- LLVMValueRef id = ac_get_thread_id(&ctx->ac);
- if (ctx->ac.wave_size == 64)
- id = LLVMBuildZExt(ctx->ac.builder, id, ctx->i64, "");
- value = LLVMBuildShl(ctx->ac.builder,
- LLVMConstInt(ctx->ac.iN_wavemask, 1, 0), id, "");
- if (ctx->ac.wave_size == 32)
- value = LLVMBuildZExt(ctx->ac.builder, value, ctx->i64, "");
- value = LLVMBuildBitCast(ctx->ac.builder, value, ctx->v2i32, "");
- break;
- }
-
- case TGSI_SEMANTIC_SUBGROUP_GE_MASK:
- case TGSI_SEMANTIC_SUBGROUP_GT_MASK:
- case TGSI_SEMANTIC_SUBGROUP_LE_MASK:
- case TGSI_SEMANTIC_SUBGROUP_LT_MASK:
- {
- LLVMValueRef id = ac_get_thread_id(&ctx->ac);
- if (decl->Semantic.Name == TGSI_SEMANTIC_SUBGROUP_GT_MASK ||
- decl->Semantic.Name == TGSI_SEMANTIC_SUBGROUP_LE_MASK) {
- /* All bits set except LSB */
- value = LLVMConstInt(ctx->ac.iN_wavemask, -2, 0);
- } else {
- /* All bits set */
- value = LLVMConstInt(ctx->ac.iN_wavemask, -1, 0);
- }
- if (ctx->ac.wave_size == 64)
- id = LLVMBuildZExt(ctx->ac.builder, id, ctx->i64, "");
- value = LLVMBuildShl(ctx->ac.builder, value, id, "");
- if (decl->Semantic.Name == TGSI_SEMANTIC_SUBGROUP_LE_MASK ||
- decl->Semantic.Name == TGSI_SEMANTIC_SUBGROUP_LT_MASK)
- value = LLVMBuildNot(ctx->ac.builder, value, "");
- if (ctx->ac.wave_size == 32)
- value = LLVMBuildZExt(ctx->ac.builder, value, ctx->i64, "");
- value = LLVMBuildBitCast(ctx->ac.builder, value, ctx->v2i32, "");
- break;
- }
-
- case TGSI_SEMANTIC_CS_USER_DATA_AMD:
- value = ac_get_arg(&ctx->ac, ctx->cs_user_data);
- break;
-
- default:
- assert(!"unknown system value");
- return;
- }
-
- ctx->system_values[index] = value;
-}
-
-void si_declare_compute_memory(struct si_shader_context *ctx)
-{
- struct si_shader_selector *sel = ctx->shader->selector;
- unsigned lds_size = sel->info.properties[TGSI_PROPERTY_CS_LOCAL_SIZE];
-
- LLVMTypeRef i8p = LLVMPointerType(ctx->i8, AC_ADDR_SPACE_LDS);
- LLVMValueRef var;
-
- assert(!ctx->ac.lds);
-
- var = LLVMAddGlobalInAddressSpace(ctx->ac.module,
- LLVMArrayType(ctx->i8, lds_size),
- "compute_lds",
- AC_ADDR_SPACE_LDS);
- LLVMSetAlignment(var, 64 * 1024);
-
- ctx->ac.lds = LLVMBuildBitCast(ctx->ac.builder, var, i8p, "");
-}
-
-void si_tgsi_declare_compute_memory(struct si_shader_context *ctx,
- const struct tgsi_full_declaration *decl)
-{
- assert(decl->Declaration.MemType == TGSI_MEMORY_TYPE_SHARED);
- assert(decl->Range.First == decl->Range.Last);
-
- si_declare_compute_memory(ctx);
-}
-
-static LLVMValueRef load_const_buffer_desc_fast_path(struct si_shader_context *ctx)
-{
- LLVMValueRef ptr =
- ac_get_arg(&ctx->ac, ctx->const_and_shader_buffers);
- struct si_shader_selector *sel = ctx->shader->selector;
-
- /* Do the bounds checking with a descriptor, because
- * doing computation and manual bounds checking of 64-bit
- * addresses generates horrible VALU code with very high
- * VGPR usage and very low SIMD occupancy.
- */
- ptr = LLVMBuildPtrToInt(ctx->ac.builder, ptr, ctx->ac.intptr, "");
-
- LLVMValueRef desc0, desc1;
- desc0 = ptr;
- desc1 = LLVMConstInt(ctx->i32,
- S_008F04_BASE_ADDRESS_HI(ctx->screen->info.address32_hi), 0);
-
- uint32_t rsrc3 = S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X) |
- S_008F0C_DST_SEL_Y(V_008F0C_SQ_SEL_Y) |
- S_008F0C_DST_SEL_Z(V_008F0C_SQ_SEL_Z) |
- S_008F0C_DST_SEL_W(V_008F0C_SQ_SEL_W);
-
- if (ctx->screen->info.chip_class >= GFX10)
- rsrc3 |= S_008F0C_FORMAT(V_008F0C_IMG_FORMAT_32_FLOAT) |
- S_008F0C_OOB_SELECT(3) |
- S_008F0C_RESOURCE_LEVEL(1);
- else
- rsrc3 |= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT) |
- S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32);
-
- LLVMValueRef desc_elems[] = {
- desc0,
- desc1,
- LLVMConstInt(ctx->i32, (sel->info.const_file_max[0] + 1) * 16, 0),
- LLVMConstInt(ctx->i32, rsrc3, false)
- };
-
- return ac_build_gather_values(&ctx->ac, desc_elems, 4);
-}
-
-static LLVMValueRef load_const_buffer_desc(struct si_shader_context *ctx, int i)
-{
- LLVMValueRef list_ptr = ac_get_arg(&ctx->ac,
- ctx->const_and_shader_buffers);
-
- return ac_build_load_to_sgpr(&ctx->ac, list_ptr,
- LLVMConstInt(ctx->i32, si_get_constbuf_slot(i), 0));
-}
-
-static LLVMValueRef load_ubo(struct ac_shader_abi *abi, LLVMValueRef index)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct si_shader_selector *sel = ctx->shader->selector;
-
- LLVMValueRef ptr = ac_get_arg(&ctx->ac, ctx->const_and_shader_buffers);
-
- if (sel->info.const_buffers_declared == 1 &&
- sel->info.shader_buffers_declared == 0) {
- return load_const_buffer_desc_fast_path(ctx);
- }
-
- index = si_llvm_bound_index(ctx, index, ctx->num_const_buffers);
- index = LLVMBuildAdd(ctx->ac.builder, index,
- LLVMConstInt(ctx->i32, SI_NUM_SHADER_BUFFERS, 0), "");
-
- return ac_build_load_to_sgpr(&ctx->ac, ptr, index);
-}
-
-static LLVMValueRef
-load_ssbo(struct ac_shader_abi *abi, LLVMValueRef index, bool write)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- LLVMValueRef rsrc_ptr = ac_get_arg(&ctx->ac,
- ctx->const_and_shader_buffers);
-
- index = si_llvm_bound_index(ctx, index, ctx->num_shader_buffers);
- index = LLVMBuildSub(ctx->ac.builder,
- LLVMConstInt(ctx->i32, SI_NUM_SHADER_BUFFERS - 1, 0),
- index, "");
-
- return ac_build_load_to_sgpr(&ctx->ac, rsrc_ptr, index);
-}
-
-static LLVMValueRef fetch_constant(
- struct lp_build_tgsi_context *bld_base,
- const struct tgsi_full_src_register *reg,
- enum tgsi_opcode_type type,
- unsigned swizzle_in)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- struct si_shader_selector *sel = ctx->shader->selector;
- const struct tgsi_ind_register *ireg = ®->Indirect;
- unsigned buf, idx;
- unsigned swizzle = swizzle_in & 0xffff;
-
- LLVMValueRef addr, bufp;
-
- if (swizzle_in == LP_CHAN_ALL) {
- unsigned chan;
- LLVMValueRef values[4];
- for (chan = 0; chan < TGSI_NUM_CHANNELS; ++chan)
- values[chan] = fetch_constant(bld_base, reg, type, chan);
-
- return ac_build_gather_values(&ctx->ac, values, 4);
- }
-
- /* Split 64-bit loads. */
- if (tgsi_type_is_64bit(type)) {
- LLVMValueRef lo, hi;
-
- lo = fetch_constant(bld_base, reg, TGSI_TYPE_UNSIGNED, swizzle);
- hi = fetch_constant(bld_base, reg, TGSI_TYPE_UNSIGNED, (swizzle_in >> 16));
- return si_llvm_emit_fetch_64bit(bld_base, tgsi2llvmtype(bld_base, type),
- lo, hi);
- }
-
- idx = reg->Register.Index * 4 + swizzle;
- if (reg->Register.Indirect) {
- addr = si_get_indirect_index(ctx, ireg, 16, idx * 4);
- } else {
- addr = LLVMConstInt(ctx->i32, idx * 4, 0);
- }
-
- /* Fast path when user data SGPRs point to constant buffer 0 directly. */
- if (sel->info.const_buffers_declared == 1 &&
- sel->info.shader_buffers_declared == 0) {
- LLVMValueRef desc = load_const_buffer_desc_fast_path(ctx);
- LLVMValueRef result = buffer_load_const(ctx, desc, addr);
- return bitcast(bld_base, type, result);
- }
-
- assert(reg->Register.Dimension);
- buf = reg->Dimension.Index;
-
- if (reg->Dimension.Indirect) {
- LLVMValueRef ptr = ac_get_arg(&ctx->ac, ctx->const_and_shader_buffers);
- LLVMValueRef index;
- index = si_get_bounded_indirect_index(ctx, ®->DimIndirect,
- reg->Dimension.Index,
- ctx->num_const_buffers);
- index = LLVMBuildAdd(ctx->ac.builder, index,
- LLVMConstInt(ctx->i32, SI_NUM_SHADER_BUFFERS, 0), "");
- bufp = ac_build_load_to_sgpr(&ctx->ac, ptr, index);
- } else
- bufp = load_const_buffer_desc(ctx, buf);
-
- return bitcast(bld_base, type, buffer_load_const(ctx, bufp, addr));
-}
-
-/* Initialize arguments for the shader export intrinsic */
-static void si_llvm_init_export_args(struct si_shader_context *ctx,
- LLVMValueRef *values,
- unsigned target,
- struct ac_export_args *args)
-{
- LLVMValueRef f32undef = LLVMGetUndef(ctx->ac.f32);
- unsigned spi_shader_col_format = V_028714_SPI_SHADER_32_ABGR;
- unsigned chan;
- bool is_int8, is_int10;
-
- /* Default is 0xf. Adjusted below depending on the format. */
- args->enabled_channels = 0xf; /* writemask */
-
- /* Specify whether the EXEC mask represents the valid mask */
- args->valid_mask = 0;
-
- /* Specify whether this is the last export */
- args->done = 0;
-
- /* Specify the target we are exporting */
- args->target = target;
-
- if (ctx->type == PIPE_SHADER_FRAGMENT) {
- const struct si_shader_key *key = &ctx->shader->key;
- unsigned col_formats = key->part.ps.epilog.spi_shader_col_format;
- int cbuf = target - V_008DFC_SQ_EXP_MRT;
-
- assert(cbuf >= 0 && cbuf < 8);
- spi_shader_col_format = (col_formats >> (cbuf * 4)) & 0xf;
- is_int8 = (key->part.ps.epilog.color_is_int8 >> cbuf) & 0x1;
- is_int10 = (key->part.ps.epilog.color_is_int10 >> cbuf) & 0x1;
- }
-
- args->compr = false;
- args->out[0] = f32undef;
- args->out[1] = f32undef;
- args->out[2] = f32undef;
- args->out[3] = f32undef;
-
- LLVMValueRef (*packf)(struct ac_llvm_context *ctx, LLVMValueRef args[2]) = NULL;
- LLVMValueRef (*packi)(struct ac_llvm_context *ctx, LLVMValueRef args[2],
- unsigned bits, bool hi) = NULL;
-
- switch (spi_shader_col_format) {
- case V_028714_SPI_SHADER_ZERO:
- args->enabled_channels = 0; /* writemask */
- args->target = V_008DFC_SQ_EXP_NULL;
- break;
-
- case V_028714_SPI_SHADER_32_R:
- args->enabled_channels = 1; /* writemask */
- args->out[0] = values[0];
- break;
-
- case V_028714_SPI_SHADER_32_GR:
- args->enabled_channels = 0x3; /* writemask */
- args->out[0] = values[0];
- args->out[1] = values[1];
- break;
-
- case V_028714_SPI_SHADER_32_AR:
- if (ctx->screen->info.chip_class >= GFX10) {
- args->enabled_channels = 0x3; /* writemask */
- args->out[0] = values[0];
- args->out[1] = values[3];
- } else {
- args->enabled_channels = 0x9; /* writemask */
- args->out[0] = values[0];
- args->out[3] = values[3];
- }
- break;
-
- case V_028714_SPI_SHADER_FP16_ABGR:
- packf = ac_build_cvt_pkrtz_f16;
- break;
-
- case V_028714_SPI_SHADER_UNORM16_ABGR:
- packf = ac_build_cvt_pknorm_u16;
- break;
-
- case V_028714_SPI_SHADER_SNORM16_ABGR:
- packf = ac_build_cvt_pknorm_i16;
- break;
-
- case V_028714_SPI_SHADER_UINT16_ABGR:
- packi = ac_build_cvt_pk_u16;
- break;
-
- case V_028714_SPI_SHADER_SINT16_ABGR:
- packi = ac_build_cvt_pk_i16;
- break;
-
- case V_028714_SPI_SHADER_32_ABGR:
- memcpy(&args->out[0], values, sizeof(values[0]) * 4);
- break;
- }
-
- /* Pack f16 or norm_i16/u16. */
- if (packf) {
- for (chan = 0; chan < 2; chan++) {
- LLVMValueRef pack_args[2] = {
- values[2 * chan],
- values[2 * chan + 1]
- };
- LLVMValueRef packed;
-
- packed = packf(&ctx->ac, pack_args);
- args->out[chan] = ac_to_float(&ctx->ac, packed);
- }
- args->compr = 1; /* COMPR flag */
- }
- /* Pack i16/u16. */
- if (packi) {
- for (chan = 0; chan < 2; chan++) {
- LLVMValueRef pack_args[2] = {
- ac_to_integer(&ctx->ac, values[2 * chan]),
- ac_to_integer(&ctx->ac, values[2 * chan + 1])
- };
- LLVMValueRef packed;
-
- packed = packi(&ctx->ac, pack_args,
- is_int8 ? 8 : is_int10 ? 10 : 16,
- chan == 1);
- args->out[chan] = ac_to_float(&ctx->ac, packed);
- }
- args->compr = 1; /* COMPR flag */
- }
-}
-
-static void si_alpha_test(struct lp_build_tgsi_context *bld_base,
- LLVMValueRef alpha)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
-
- if (ctx->shader->key.part.ps.epilog.alpha_func != PIPE_FUNC_NEVER) {
- static LLVMRealPredicate cond_map[PIPE_FUNC_ALWAYS + 1] = {
- [PIPE_FUNC_LESS] = LLVMRealOLT,
- [PIPE_FUNC_EQUAL] = LLVMRealOEQ,
- [PIPE_FUNC_LEQUAL] = LLVMRealOLE,
- [PIPE_FUNC_GREATER] = LLVMRealOGT,
- [PIPE_FUNC_NOTEQUAL] = LLVMRealONE,
- [PIPE_FUNC_GEQUAL] = LLVMRealOGE,
- };
- LLVMRealPredicate cond = cond_map[ctx->shader->key.part.ps.epilog.alpha_func];
- assert(cond);
-
- LLVMValueRef alpha_ref = LLVMGetParam(ctx->main_fn,
- SI_PARAM_ALPHA_REF);
- LLVMValueRef alpha_pass =
- LLVMBuildFCmp(ctx->ac.builder, cond, alpha, alpha_ref, "");
- ac_build_kill_if_false(&ctx->ac, alpha_pass);
- } else {
- ac_build_kill_if_false(&ctx->ac, ctx->i1false);
- }
-}
-
-static LLVMValueRef si_scale_alpha_by_sample_mask(struct lp_build_tgsi_context *bld_base,
- LLVMValueRef alpha,
- unsigned samplemask_param)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMValueRef coverage;
-
- /* alpha = alpha * popcount(coverage) / SI_NUM_SMOOTH_AA_SAMPLES */
- coverage = LLVMGetParam(ctx->main_fn,
- samplemask_param);
- coverage = ac_to_integer(&ctx->ac, coverage);
-
- coverage = ac_build_intrinsic(&ctx->ac, "llvm.ctpop.i32",
- ctx->i32,
- &coverage, 1, AC_FUNC_ATTR_READNONE);
-
- coverage = LLVMBuildUIToFP(ctx->ac.builder, coverage,
- ctx->f32, "");
-
- coverage = LLVMBuildFMul(ctx->ac.builder, coverage,
- LLVMConstReal(ctx->f32,
- 1.0 / SI_NUM_SMOOTH_AA_SAMPLES), "");
-
- return LLVMBuildFMul(ctx->ac.builder, alpha, coverage, "");
-}
-
-static void si_llvm_emit_clipvertex(struct si_shader_context *ctx,
- struct ac_export_args *pos, LLVMValueRef *out_elts)
-{
- unsigned reg_index;
- unsigned chan;
- unsigned const_chan;
- LLVMValueRef base_elt;
- LLVMValueRef ptr = ac_get_arg(&ctx->ac, ctx->rw_buffers);
- LLVMValueRef constbuf_index = LLVMConstInt(ctx->i32,
- SI_VS_CONST_CLIP_PLANES, 0);
- LLVMValueRef const_resource = ac_build_load_to_sgpr(&ctx->ac, ptr, constbuf_index);
-
- for (reg_index = 0; reg_index < 2; reg_index ++) {
- struct ac_export_args *args = &pos[2 + reg_index];
-
- args->out[0] =
- args->out[1] =
- args->out[2] =
- args->out[3] = LLVMConstReal(ctx->f32, 0.0f);
-
- /* Compute dot products of position and user clip plane vectors */
- for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) {
- for (const_chan = 0; const_chan < TGSI_NUM_CHANNELS; const_chan++) {
- LLVMValueRef addr =
- LLVMConstInt(ctx->i32, ((reg_index * 4 + chan) * 4 +
- const_chan) * 4, 0);
- base_elt = buffer_load_const(ctx, const_resource,
- addr);
- args->out[chan] = ac_build_fmad(&ctx->ac, base_elt,
- out_elts[const_chan], args->out[chan]);
- }
- }
-
- args->enabled_channels = 0xf;
- args->valid_mask = 0;
- args->done = 0;
- args->target = V_008DFC_SQ_EXP_POS + 2 + reg_index;
- args->compr = 0;
- }
-}
-
-static void si_dump_streamout(struct pipe_stream_output_info *so)
-{
- unsigned i;
-
- if (so->num_outputs)
- fprintf(stderr, "STREAMOUT\n");
-
- for (i = 0; i < so->num_outputs; i++) {
- unsigned mask = ((1 << so->output[i].num_components) - 1) <<
- so->output[i].start_component;
- fprintf(stderr, " %i: BUF%i[%i..%i] <- OUT[%i].%s%s%s%s\n",
- i, so->output[i].output_buffer,
- so->output[i].dst_offset, so->output[i].dst_offset + so->output[i].num_components - 1,
- so->output[i].register_index,
- mask & 1 ? "x" : "",
- mask & 2 ? "y" : "",
- mask & 4 ? "z" : "",
- mask & 8 ? "w" : "");
- }
-}
-
-void si_emit_streamout_output(struct si_shader_context *ctx,
- LLVMValueRef const *so_buffers,
- LLVMValueRef const *so_write_offsets,
- struct pipe_stream_output *stream_out,
- struct si_shader_output_values *shader_out)
-{
- unsigned buf_idx = stream_out->output_buffer;
- unsigned start = stream_out->start_component;
- unsigned num_comps = stream_out->num_components;
- LLVMValueRef out[4];
-
- assert(num_comps && num_comps <= 4);
- if (!num_comps || num_comps > 4)
- return;
-
- /* Load the output as int. */
- for (int j = 0; j < num_comps; j++) {
- assert(stream_out->stream == shader_out->vertex_stream[start + j]);
-
- out[j] = ac_to_integer(&ctx->ac, shader_out->values[start + j]);
- }
-
- /* Pack the output. */
- LLVMValueRef vdata = NULL;
-
- switch (num_comps) {
- case 1: /* as i32 */
- vdata = out[0];
- break;
- case 2: /* as v2i32 */
- case 3: /* as v3i32 */
- if (ac_has_vec3_support(ctx->screen->info.chip_class, false)) {
- vdata = ac_build_gather_values(&ctx->ac, out, num_comps);
- break;
- }
- /* as v4i32 (aligned to 4) */
- out[3] = LLVMGetUndef(ctx->i32);
- /* fall through */
- case 4: /* as v4i32 */
- vdata = ac_build_gather_values(&ctx->ac, out, util_next_power_of_two(num_comps));
- break;
- }
-
- ac_build_buffer_store_dword(&ctx->ac, so_buffers[buf_idx],
- vdata, num_comps,
- so_write_offsets[buf_idx],
- ctx->i32_0,
- stream_out->dst_offset * 4, ac_glc | ac_slc);
-}
-
-/**
- * Write streamout data to buffers for vertex stream @p stream (different
- * vertex streams can occur for GS copy shaders).
- */
-static void si_llvm_emit_streamout(struct si_shader_context *ctx,
- struct si_shader_output_values *outputs,
- unsigned noutput, unsigned stream)
-{
- struct si_shader_selector *sel = ctx->shader->selector;
- struct pipe_stream_output_info *so = &sel->so;
- LLVMBuilderRef builder = ctx->ac.builder;
- int i;
-
- /* Get bits [22:16], i.e. (so_param >> 16) & 127; */
- LLVMValueRef so_vtx_count =
- si_unpack_param(ctx, ctx->streamout_config, 16, 7);
-
- LLVMValueRef tid = ac_get_thread_id(&ctx->ac);
-
- /* can_emit = tid < so_vtx_count; */
- LLVMValueRef can_emit =
- LLVMBuildICmp(builder, LLVMIntULT, tid, so_vtx_count, "");
-
- /* Emit the streamout code conditionally. This actually avoids
- * out-of-bounds buffer access. The hw tells us via the SGPR
- * (so_vtx_count) which threads are allowed to emit streamout data. */
- ac_build_ifcc(&ctx->ac, can_emit, 6501);
- {
- /* The buffer offset is computed as follows:
- * ByteOffset = streamout_offset[buffer_id]*4 +
- * (streamout_write_index + thread_id)*stride[buffer_id] +
- * attrib_offset
- */
-
- LLVMValueRef so_write_index =
- ac_get_arg(&ctx->ac,
- ctx->streamout_write_index);
-
- /* Compute (streamout_write_index + thread_id). */
- so_write_index = LLVMBuildAdd(builder, so_write_index, tid, "");
-
- /* Load the descriptor and compute the write offset for each
- * enabled buffer. */
- LLVMValueRef so_write_offset[4] = {};
- LLVMValueRef so_buffers[4];
- LLVMValueRef buf_ptr = ac_get_arg(&ctx->ac,
- ctx->rw_buffers);
-
- for (i = 0; i < 4; i++) {
- if (!so->stride[i])
- continue;
-
- LLVMValueRef offset = LLVMConstInt(ctx->i32,
- SI_VS_STREAMOUT_BUF0 + i, 0);
-
- so_buffers[i] = ac_build_load_to_sgpr(&ctx->ac, buf_ptr, offset);
-
- LLVMValueRef so_offset = ac_get_arg(&ctx->ac,
- ctx->streamout_offset[i]);
- so_offset = LLVMBuildMul(builder, so_offset, LLVMConstInt(ctx->i32, 4, 0), "");
-
- so_write_offset[i] = ac_build_imad(&ctx->ac, so_write_index,
- LLVMConstInt(ctx->i32, so->stride[i]*4, 0),
- so_offset);
- }
-
- /* Write streamout data. */
- for (i = 0; i < so->num_outputs; i++) {
- unsigned reg = so->output[i].register_index;
-
- if (reg >= noutput)
- continue;
-
- if (stream != so->output[i].stream)
- continue;
-
- si_emit_streamout_output(ctx, so_buffers, so_write_offset,
- &so->output[i], &outputs[reg]);
- }
- }
- ac_build_endif(&ctx->ac, 6501);
-}
-
-static void si_export_param(struct si_shader_context *ctx, unsigned index,
- LLVMValueRef *values)
-{
- struct ac_export_args args;
-
- si_llvm_init_export_args(ctx, values,
- V_008DFC_SQ_EXP_PARAM + index, &args);
- ac_build_export(&ctx->ac, &args);
-}
-
-static void si_build_param_exports(struct si_shader_context *ctx,
- struct si_shader_output_values *outputs,
- unsigned noutput)
-{
- struct si_shader *shader = ctx->shader;
- unsigned param_count = 0;
-
- for (unsigned i = 0; i < noutput; i++) {
- unsigned semantic_name = outputs[i].semantic_name;
- unsigned semantic_index = outputs[i].semantic_index;
-
- if (outputs[i].vertex_stream[0] != 0 &&
- outputs[i].vertex_stream[1] != 0 &&
- outputs[i].vertex_stream[2] != 0 &&
- outputs[i].vertex_stream[3] != 0)
- continue;
-
- switch (semantic_name) {
- case TGSI_SEMANTIC_LAYER:
- case TGSI_SEMANTIC_VIEWPORT_INDEX:
- case TGSI_SEMANTIC_CLIPDIST:
- case TGSI_SEMANTIC_COLOR:
- case TGSI_SEMANTIC_BCOLOR:
- case TGSI_SEMANTIC_PRIMID:
- case TGSI_SEMANTIC_FOG:
- case TGSI_SEMANTIC_TEXCOORD:
- case TGSI_SEMANTIC_GENERIC:
- break;
- default:
- continue;
- }
-
- if ((semantic_name != TGSI_SEMANTIC_GENERIC ||
- semantic_index < SI_MAX_IO_GENERIC) &&
- shader->key.opt.kill_outputs &
- (1ull << si_shader_io_get_unique_index(semantic_name,
- semantic_index, true)))
- continue;
-
- si_export_param(ctx, param_count, outputs[i].values);
-
- assert(i < ARRAY_SIZE(shader->info.vs_output_param_offset));
- shader->info.vs_output_param_offset[i] = param_count++;
- }
-
- shader->info.nr_param_exports = param_count;
-}
-
-/**
- * Vertex color clamping.
- *
- * This uses a state constant loaded in a user data SGPR and
- * an IF statement is added that clamps all colors if the constant
- * is true.
- */
-static void si_vertex_color_clamping(struct si_shader_context *ctx,
- struct si_shader_output_values *outputs,
- unsigned noutput)
-{
- LLVMValueRef addr[SI_MAX_VS_OUTPUTS][4];
- bool has_colors = false;
-
- /* Store original colors to alloca variables. */
- for (unsigned i = 0; i < noutput; i++) {
- if (outputs[i].semantic_name != TGSI_SEMANTIC_COLOR &&
- outputs[i].semantic_name != TGSI_SEMANTIC_BCOLOR)
- continue;
-
- for (unsigned j = 0; j < 4; j++) {
- addr[i][j] = ac_build_alloca_undef(&ctx->ac, ctx->f32, "");
- LLVMBuildStore(ctx->ac.builder, outputs[i].values[j], addr[i][j]);
- }
- has_colors = true;
- }
-
- if (!has_colors)
- return;
-
- /* The state is in the first bit of the user SGPR. */
- LLVMValueRef cond = ac_get_arg(&ctx->ac, ctx->vs_state_bits);
- cond = LLVMBuildTrunc(ctx->ac.builder, cond, ctx->i1, "");
-
- ac_build_ifcc(&ctx->ac, cond, 6502);
-
- /* Store clamped colors to alloca variables within the conditional block. */
- for (unsigned i = 0; i < noutput; i++) {
- if (outputs[i].semantic_name != TGSI_SEMANTIC_COLOR &&
- outputs[i].semantic_name != TGSI_SEMANTIC_BCOLOR)
- continue;
-
- for (unsigned j = 0; j < 4; j++) {
- LLVMBuildStore(ctx->ac.builder,
- ac_build_clamp(&ctx->ac, outputs[i].values[j]),
- addr[i][j]);
- }
- }
- ac_build_endif(&ctx->ac, 6502);
-
- /* Load clamped colors */
- for (unsigned i = 0; i < noutput; i++) {
- if (outputs[i].semantic_name != TGSI_SEMANTIC_COLOR &&
- outputs[i].semantic_name != TGSI_SEMANTIC_BCOLOR)
- continue;
-
- for (unsigned j = 0; j < 4; j++) {
- outputs[i].values[j] =
- LLVMBuildLoad(ctx->ac.builder, addr[i][j], "");
- }
- }
-}
-
-/* Generate export instructions for hardware VS shader stage or NGG GS stage
- * (position and parameter data only).
- */
-void si_llvm_export_vs(struct si_shader_context *ctx,
- struct si_shader_output_values *outputs,
- unsigned noutput)
-{
- struct si_shader *shader = ctx->shader;
- struct ac_export_args pos_args[4] = {};
- LLVMValueRef psize_value = NULL, edgeflag_value = NULL, layer_value = NULL, viewport_index_value = NULL;
- unsigned pos_idx;
- int i;
-
- si_vertex_color_clamping(ctx, outputs, noutput);
-
- /* Build position exports. */
- for (i = 0; i < noutput; i++) {
- switch (outputs[i].semantic_name) {
- case TGSI_SEMANTIC_POSITION:
- si_llvm_init_export_args(ctx, outputs[i].values,
- V_008DFC_SQ_EXP_POS, &pos_args[0]);
- break;
- case TGSI_SEMANTIC_PSIZE:
- psize_value = outputs[i].values[0];
- break;
- case TGSI_SEMANTIC_LAYER:
- layer_value = outputs[i].values[0];
- break;
- case TGSI_SEMANTIC_VIEWPORT_INDEX:
- viewport_index_value = outputs[i].values[0];
- break;
- case TGSI_SEMANTIC_EDGEFLAG:
- edgeflag_value = outputs[i].values[0];
- break;
- case TGSI_SEMANTIC_CLIPDIST:
- if (!shader->key.opt.clip_disable) {
- unsigned index = 2 + outputs[i].semantic_index;
- si_llvm_init_export_args(ctx, outputs[i].values,
- V_008DFC_SQ_EXP_POS + index,
- &pos_args[index]);
- }
- break;
- case TGSI_SEMANTIC_CLIPVERTEX:
- if (!shader->key.opt.clip_disable) {
- si_llvm_emit_clipvertex(ctx, pos_args,
- outputs[i].values);
- }
- break;
- }
- }
-
- /* We need to add the position output manually if it's missing. */
- if (!pos_args[0].out[0]) {
- pos_args[0].enabled_channels = 0xf; /* writemask */
- pos_args[0].valid_mask = 0; /* EXEC mask */
- pos_args[0].done = 0; /* last export? */
- pos_args[0].target = V_008DFC_SQ_EXP_POS;
- pos_args[0].compr = 0; /* COMPR flag */
- pos_args[0].out[0] = ctx->ac.f32_0; /* X */
- pos_args[0].out[1] = ctx->ac.f32_0; /* Y */
- pos_args[0].out[2] = ctx->ac.f32_0; /* Z */
- pos_args[0].out[3] = ctx->ac.f32_1; /* W */
- }
-
- bool pos_writes_edgeflag = shader->selector->info.writes_edgeflag &&
- !shader->key.as_ngg;
-
- /* Write the misc vector (point size, edgeflag, layer, viewport). */
- if (shader->selector->info.writes_psize ||
- pos_writes_edgeflag ||
- shader->selector->info.writes_viewport_index ||
- shader->selector->info.writes_layer) {
- pos_args[1].enabled_channels = shader->selector->info.writes_psize |
- (pos_writes_edgeflag << 1) |
- (shader->selector->info.writes_layer << 2);
-
- pos_args[1].valid_mask = 0; /* EXEC mask */
- pos_args[1].done = 0; /* last export? */
- pos_args[1].target = V_008DFC_SQ_EXP_POS + 1;
- pos_args[1].compr = 0; /* COMPR flag */
- pos_args[1].out[0] = ctx->ac.f32_0; /* X */
- pos_args[1].out[1] = ctx->ac.f32_0; /* Y */
- pos_args[1].out[2] = ctx->ac.f32_0; /* Z */
- pos_args[1].out[3] = ctx->ac.f32_0; /* W */
-
- if (shader->selector->info.writes_psize)
- pos_args[1].out[0] = psize_value;
-
- if (pos_writes_edgeflag) {
- /* The output is a float, but the hw expects an integer
- * with the first bit containing the edge flag. */
- edgeflag_value = LLVMBuildFPToUI(ctx->ac.builder,
- edgeflag_value,
- ctx->i32, "");
- edgeflag_value = ac_build_umin(&ctx->ac,
- edgeflag_value,
- ctx->i32_1);
-
- /* The LLVM intrinsic expects a float. */
- pos_args[1].out[1] = ac_to_float(&ctx->ac, edgeflag_value);
- }
-
- if (ctx->screen->info.chip_class >= GFX9) {
- /* GFX9 has the layer in out.z[10:0] and the viewport
- * index in out.z[19:16].
- */
- if (shader->selector->info.writes_layer)
- pos_args[1].out[2] = layer_value;
-
- if (shader->selector->info.writes_viewport_index) {
- LLVMValueRef v = viewport_index_value;
-
- v = ac_to_integer(&ctx->ac, v);
- v = LLVMBuildShl(ctx->ac.builder, v,
- LLVMConstInt(ctx->i32, 16, 0), "");
- v = LLVMBuildOr(ctx->ac.builder, v,
- ac_to_integer(&ctx->ac, pos_args[1].out[2]), "");
- pos_args[1].out[2] = ac_to_float(&ctx->ac, v);
- pos_args[1].enabled_channels |= 1 << 2;
- }
- } else {
- if (shader->selector->info.writes_layer)
- pos_args[1].out[2] = layer_value;
-
- if (shader->selector->info.writes_viewport_index) {
- pos_args[1].out[3] = viewport_index_value;
- pos_args[1].enabled_channels |= 1 << 3;
- }
- }
- }
-
- for (i = 0; i < 4; i++)
- if (pos_args[i].out[0])
- shader->info.nr_pos_exports++;
-
- /* Navi10-14 skip POS0 exports if EXEC=0 and DONE=0, causing a hang.
- * Setting valid_mask=1 prevents it and has no other effect.
- */
- if (ctx->screen->info.family == CHIP_NAVI10 ||
- ctx->screen->info.family == CHIP_NAVI12 ||
- ctx->screen->info.family == CHIP_NAVI14)
- pos_args[0].valid_mask = 1;
-
- pos_idx = 0;
- for (i = 0; i < 4; i++) {
- if (!pos_args[i].out[0])
- continue;
-
- /* Specify the target we are exporting */
- pos_args[i].target = V_008DFC_SQ_EXP_POS + pos_idx++;
-
- if (pos_idx == shader->info.nr_pos_exports)
- /* Specify that this is the last export */
- pos_args[i].done = 1;
-
- ac_build_export(&ctx->ac, &pos_args[i]);
- }
-
- /* Build parameter exports. */
- si_build_param_exports(ctx, outputs, noutput);
-}
-
-/**
- * Forward all outputs from the vertex shader to the TES. This is only used
- * for the fixed function TCS.
- */
-static void si_copy_tcs_inputs(struct lp_build_tgsi_context *bld_base)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMValueRef invocation_id, buffer, buffer_offset;
- LLVMValueRef lds_vertex_stride, lds_base;
- uint64_t inputs;
-
- invocation_id = si_unpack_param(ctx, ctx->args.tcs_rel_ids, 8, 5);
- buffer = get_tess_ring_descriptor(ctx, TESS_OFFCHIP_RING_TCS);
- buffer_offset = ac_get_arg(&ctx->ac, ctx->tcs_offchip_offset);
-
- lds_vertex_stride = get_tcs_in_vertex_dw_stride(ctx);
- lds_base = get_tcs_in_current_patch_offset(ctx);
- lds_base = ac_build_imad(&ctx->ac, invocation_id, lds_vertex_stride,
- lds_base);
-
- inputs = ctx->shader->key.mono.u.ff_tcs_inputs_to_copy;
- while (inputs) {
- unsigned i = u_bit_scan64(&inputs);
-
- LLVMValueRef lds_ptr = LLVMBuildAdd(ctx->ac.builder, lds_base,
- LLVMConstInt(ctx->i32, 4 * i, 0),
- "");
-
- LLVMValueRef buffer_addr = get_tcs_tes_buffer_address(ctx,
- get_rel_patch_id(ctx),
- invocation_id,
- LLVMConstInt(ctx->i32, i, 0));
-
- LLVMValueRef value = lshs_lds_load(bld_base, ctx->ac.i32, ~0, lds_ptr);
-
- ac_build_buffer_store_dword(&ctx->ac, buffer, value, 4, buffer_addr,
- buffer_offset, 0, ac_glc);
- }
-}
-
-static void si_write_tess_factors(struct lp_build_tgsi_context *bld_base,
- LLVMValueRef rel_patch_id,
- LLVMValueRef invocation_id,
- LLVMValueRef tcs_out_current_patch_data_offset,
- LLVMValueRef invoc0_tf_outer[4],
- LLVMValueRef invoc0_tf_inner[2])
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- struct si_shader *shader = ctx->shader;
- unsigned tess_inner_index, tess_outer_index;
- LLVMValueRef lds_base, lds_inner, lds_outer, byteoffset, buffer;
- LLVMValueRef out[6], vec0, vec1, tf_base, inner[4], outer[4];
- unsigned stride, outer_comps, inner_comps, i, offset;
-
- /* Add a barrier before loading tess factors from LDS. */
- if (!shader->key.part.tcs.epilog.invoc0_tess_factors_are_def)
- si_llvm_emit_barrier(NULL, bld_base, NULL);
-
- /* Do this only for invocation 0, because the tess levels are per-patch,
- * not per-vertex.
- *
- * This can't jump, because invocation 0 executes this. It should
- * at least mask out the loads and stores for other invocations.
- */
- ac_build_ifcc(&ctx->ac,
- LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ,
- invocation_id, ctx->i32_0, ""), 6503);
-
- /* Determine the layout of one tess factor element in the buffer. */
- switch (shader->key.part.tcs.epilog.prim_mode) {
- case PIPE_PRIM_LINES:
- stride = 2; /* 2 dwords, 1 vec2 store */
- outer_comps = 2;
- inner_comps = 0;
- break;
- case PIPE_PRIM_TRIANGLES:
- stride = 4; /* 4 dwords, 1 vec4 store */
- outer_comps = 3;
- inner_comps = 1;
- break;
- case PIPE_PRIM_QUADS:
- stride = 6; /* 6 dwords, 2 stores (vec4 + vec2) */
- outer_comps = 4;
- inner_comps = 2;
- break;
- default:
- assert(0);
- return;
- }
-
- for (i = 0; i < 4; i++) {
- inner[i] = LLVMGetUndef(ctx->i32);
- outer[i] = LLVMGetUndef(ctx->i32);
- }
-
- if (shader->key.part.tcs.epilog.invoc0_tess_factors_are_def) {
- /* Tess factors are in VGPRs. */
- for (i = 0; i < outer_comps; i++)
- outer[i] = out[i] = invoc0_tf_outer[i];
- for (i = 0; i < inner_comps; i++)
- inner[i] = out[outer_comps+i] = invoc0_tf_inner[i];
- } else {
- /* Load tess_inner and tess_outer from LDS.
- * Any invocation can write them, so we can't get them from a temporary.
- */
- tess_inner_index = si_shader_io_get_unique_index_patch(TGSI_SEMANTIC_TESSINNER, 0);
- tess_outer_index = si_shader_io_get_unique_index_patch(TGSI_SEMANTIC_TESSOUTER, 0);
-
- lds_base = tcs_out_current_patch_data_offset;
- lds_inner = LLVMBuildAdd(ctx->ac.builder, lds_base,
- LLVMConstInt(ctx->i32,
- tess_inner_index * 4, 0), "");
- lds_outer = LLVMBuildAdd(ctx->ac.builder, lds_base,
- LLVMConstInt(ctx->i32,
- tess_outer_index * 4, 0), "");
-
- for (i = 0; i < outer_comps; i++) {
- outer[i] = out[i] =
- lshs_lds_load(bld_base, ctx->ac.i32, i, lds_outer);
- }
- for (i = 0; i < inner_comps; i++) {
- inner[i] = out[outer_comps+i] =
- lshs_lds_load(bld_base, ctx->ac.i32, i, lds_inner);
- }
- }
-
- if (shader->key.part.tcs.epilog.prim_mode == PIPE_PRIM_LINES) {
- /* For isolines, the hardware expects tess factors in the
- * reverse order from what GLSL / TGSI specify.
- */
- LLVMValueRef tmp = out[0];
- out[0] = out[1];
- out[1] = tmp;
- }
-
- /* Convert the outputs to vectors for stores. */
- vec0 = ac_build_gather_values(&ctx->ac, out, MIN2(stride, 4));
- vec1 = NULL;
-
- if (stride > 4)
- vec1 = ac_build_gather_values(&ctx->ac, out+4, stride - 4);
-
- /* Get the buffer. */
- buffer = get_tess_ring_descriptor(ctx, TCS_FACTOR_RING);
-
- /* Get the offset. */
- tf_base = ac_get_arg(&ctx->ac,
- ctx->tcs_factor_offset);
- byteoffset = LLVMBuildMul(ctx->ac.builder, rel_patch_id,
- LLVMConstInt(ctx->i32, 4 * stride, 0), "");
-
- ac_build_ifcc(&ctx->ac,
- LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ,
- rel_patch_id, ctx->i32_0, ""), 6504);
-
- /* Store the dynamic HS control word. */
- offset = 0;
- if (ctx->screen->info.chip_class <= GFX8) {
- ac_build_buffer_store_dword(&ctx->ac, buffer,
- LLVMConstInt(ctx->i32, 0x80000000, 0),
- 1, ctx->i32_0, tf_base,
- offset, ac_glc);
- offset += 4;
- }
-
- ac_build_endif(&ctx->ac, 6504);
-
- /* Store the tessellation factors. */
- ac_build_buffer_store_dword(&ctx->ac, buffer, vec0,
- MIN2(stride, 4), byteoffset, tf_base,
- offset, ac_glc);
- offset += 16;
- if (vec1)
- ac_build_buffer_store_dword(&ctx->ac, buffer, vec1,
- stride - 4, byteoffset, tf_base,
- offset, ac_glc);
-
- /* Store the tess factors into the offchip buffer if TES reads them. */
- if (shader->key.part.tcs.epilog.tes_reads_tess_factors) {
- LLVMValueRef buf, base, inner_vec, outer_vec, tf_outer_offset;
- LLVMValueRef tf_inner_offset;
- unsigned param_outer, param_inner;
-
- buf = get_tess_ring_descriptor(ctx, TESS_OFFCHIP_RING_TCS);
- base = ac_get_arg(&ctx->ac, ctx->tcs_offchip_offset);
-
- param_outer = si_shader_io_get_unique_index_patch(
- TGSI_SEMANTIC_TESSOUTER, 0);
- tf_outer_offset = get_tcs_tes_buffer_address(ctx, rel_patch_id, NULL,
- LLVMConstInt(ctx->i32, param_outer, 0));
-
- unsigned outer_vec_size =
- ac_has_vec3_support(ctx->screen->info.chip_class, false) ?
- outer_comps : util_next_power_of_two(outer_comps);
- outer_vec = ac_build_gather_values(&ctx->ac, outer, outer_vec_size);
-
- ac_build_buffer_store_dword(&ctx->ac, buf, outer_vec,
- outer_comps, tf_outer_offset,
- base, 0, ac_glc);
- if (inner_comps) {
- param_inner = si_shader_io_get_unique_index_patch(
- TGSI_SEMANTIC_TESSINNER, 0);
- tf_inner_offset = get_tcs_tes_buffer_address(ctx, rel_patch_id, NULL,
- LLVMConstInt(ctx->i32, param_inner, 0));
-
- inner_vec = inner_comps == 1 ? inner[0] :
- ac_build_gather_values(&ctx->ac, inner, inner_comps);
- ac_build_buffer_store_dword(&ctx->ac, buf, inner_vec,
- inner_comps, tf_inner_offset,
- base, 0, ac_glc);
- }
- }
-
- ac_build_endif(&ctx->ac, 6503);
-}
-
-static LLVMValueRef
-si_insert_input_ret(struct si_shader_context *ctx, LLVMValueRef ret,
- struct ac_arg param, unsigned return_index)
-{
- return LLVMBuildInsertValue(ctx->ac.builder, ret,
- ac_get_arg(&ctx->ac, param),
- return_index, "");
-}
-
-static LLVMValueRef
-si_insert_input_ret_float(struct si_shader_context *ctx, LLVMValueRef ret,
- struct ac_arg param, unsigned return_index)
-{
- LLVMBuilderRef builder = ctx->ac.builder;
- LLVMValueRef p = ac_get_arg(&ctx->ac, param);
-
- return LLVMBuildInsertValue(builder, ret,
- ac_to_float(&ctx->ac, p),
- return_index, "");
-}
-
-static LLVMValueRef
-si_insert_input_ptr(struct si_shader_context *ctx, LLVMValueRef ret,
- struct ac_arg param, unsigned return_index)
-{
- LLVMBuilderRef builder = ctx->ac.builder;
- LLVMValueRef ptr = ac_get_arg(&ctx->ac, param);
- ptr = LLVMBuildPtrToInt(builder, ptr, ctx->i32, "");
- return LLVMBuildInsertValue(builder, ret, ptr, return_index, "");
-}
-
-/* This only writes the tessellation factor levels. */
-static void si_llvm_emit_tcs_epilogue(struct ac_shader_abi *abi,
- unsigned max_outputs,
- LLVMValueRef *addrs)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct lp_build_tgsi_context *bld_base = &ctx->bld_base;
- LLVMBuilderRef builder = ctx->ac.builder;
- LLVMValueRef rel_patch_id, invocation_id, tf_lds_offset;
-
- si_copy_tcs_inputs(bld_base);
-
- rel_patch_id = get_rel_patch_id(ctx);
- invocation_id = si_unpack_param(ctx, ctx->args.tcs_rel_ids, 8, 5);
- tf_lds_offset = get_tcs_out_current_patch_data_offset(ctx);
-
- if (ctx->screen->info.chip_class >= GFX9) {
- LLVMBasicBlockRef blocks[2] = {
- LLVMGetInsertBlock(builder),
- ctx->merged_wrap_if_entry_block
- };
- LLVMValueRef values[2];
-
- ac_build_endif(&ctx->ac, ctx->merged_wrap_if_label);
-
- values[0] = rel_patch_id;
- values[1] = LLVMGetUndef(ctx->i32);
- rel_patch_id = ac_build_phi(&ctx->ac, ctx->i32, 2, values, blocks);
-
- values[0] = tf_lds_offset;
- values[1] = LLVMGetUndef(ctx->i32);
- tf_lds_offset = ac_build_phi(&ctx->ac, ctx->i32, 2, values, blocks);
-
- values[0] = invocation_id;
- values[1] = ctx->i32_1; /* cause the epilog to skip threads */
- invocation_id = ac_build_phi(&ctx->ac, ctx->i32, 2, values, blocks);
- }
-
- /* Return epilog parameters from this function. */
- LLVMValueRef ret = ctx->return_value;
- unsigned vgpr;
-
- if (ctx->screen->info.chip_class >= GFX9) {
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_offchip_layout,
- 8 + GFX9_SGPR_TCS_OFFCHIP_LAYOUT);
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_out_lds_layout,
- 8 + GFX9_SGPR_TCS_OUT_LAYOUT);
- /* Tess offchip and tess factor offsets are at the beginning. */
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_offchip_offset, 2);
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_factor_offset, 4);
- vgpr = 8 + GFX9_SGPR_TCS_OUT_LAYOUT + 1;
- } else {
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_offchip_layout,
- GFX6_SGPR_TCS_OFFCHIP_LAYOUT);
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_out_lds_layout,
- GFX6_SGPR_TCS_OUT_LAYOUT);
- /* Tess offchip and tess factor offsets are after user SGPRs. */
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_offchip_offset,
- GFX6_TCS_NUM_USER_SGPR);
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_factor_offset,
- GFX6_TCS_NUM_USER_SGPR + 1);
- vgpr = GFX6_TCS_NUM_USER_SGPR + 2;
- }
-
- /* VGPRs */
- rel_patch_id = ac_to_float(&ctx->ac, rel_patch_id);
- invocation_id = ac_to_float(&ctx->ac, invocation_id);
- tf_lds_offset = ac_to_float(&ctx->ac, tf_lds_offset);
-
- /* Leave a hole corresponding to the two input VGPRs. This ensures that
- * the invocation_id output does not alias the tcs_rel_ids input,
- * which saves a V_MOV on gfx9.
- */
- vgpr += 2;
-
- ret = LLVMBuildInsertValue(builder, ret, rel_patch_id, vgpr++, "");
- ret = LLVMBuildInsertValue(builder, ret, invocation_id, vgpr++, "");
-
- if (ctx->shader->selector->tcs_info.tessfactors_are_def_in_all_invocs) {
- vgpr++; /* skip the tess factor LDS offset */
- for (unsigned i = 0; i < 6; i++) {
- LLVMValueRef value =
- LLVMBuildLoad(builder, ctx->invoc0_tess_factors[i], "");
- value = ac_to_float(&ctx->ac, value);
- ret = LLVMBuildInsertValue(builder, ret, value, vgpr++, "");
- }
- } else {
- ret = LLVMBuildInsertValue(builder, ret, tf_lds_offset, vgpr++, "");
- }
- ctx->return_value = ret;
-}
-
-/* Pass TCS inputs from LS to TCS on GFX9. */
-static void si_set_ls_return_value_for_tcs(struct si_shader_context *ctx)
-{
- LLVMValueRef ret = ctx->return_value;
-
- ret = si_insert_input_ptr(ctx, ret, ctx->other_const_and_shader_buffers, 0);
- ret = si_insert_input_ptr(ctx, ret, ctx->other_samplers_and_images, 1);
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_offchip_offset, 2);
- ret = si_insert_input_ret(ctx, ret, ctx->merged_wave_info, 3);
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_factor_offset, 4);
- ret = si_insert_input_ret(ctx, ret, ctx->merged_scratch_offset, 5);
-
- ret = si_insert_input_ptr(ctx, ret, ctx->rw_buffers,
- 8 + SI_SGPR_RW_BUFFERS);
- ret = si_insert_input_ptr(ctx, ret,
- ctx->bindless_samplers_and_images,
- 8 + SI_SGPR_BINDLESS_SAMPLERS_AND_IMAGES);
-
- ret = si_insert_input_ret(ctx, ret, ctx->vs_state_bits,
- 8 + SI_SGPR_VS_STATE_BITS);
-
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_offchip_layout,
- 8 + GFX9_SGPR_TCS_OFFCHIP_LAYOUT);
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_out_lds_offsets,
- 8 + GFX9_SGPR_TCS_OUT_OFFSETS);
- ret = si_insert_input_ret(ctx, ret, ctx->tcs_out_lds_layout,
- 8 + GFX9_SGPR_TCS_OUT_LAYOUT);
-
- unsigned vgpr = 8 + GFX9_TCS_NUM_USER_SGPR;
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- ac_to_float(&ctx->ac,
- ac_get_arg(&ctx->ac, ctx->args.tcs_patch_id)),
- vgpr++, "");
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- ac_to_float(&ctx->ac,
- ac_get_arg(&ctx->ac, ctx->args.tcs_rel_ids)),
- vgpr++, "");
- ctx->return_value = ret;
-}
-
-/* Pass GS inputs from ES to GS on GFX9. */
-static void si_set_es_return_value_for_gs(struct si_shader_context *ctx)
-{
- LLVMValueRef ret = ctx->return_value;
-
- ret = si_insert_input_ptr(ctx, ret, ctx->other_const_and_shader_buffers, 0);
- ret = si_insert_input_ptr(ctx, ret, ctx->other_samplers_and_images, 1);
- if (ctx->shader->key.as_ngg)
- ret = si_insert_input_ptr(ctx, ret, ctx->gs_tg_info, 2);
- else
- ret = si_insert_input_ret(ctx, ret, ctx->gs2vs_offset, 2);
- ret = si_insert_input_ret(ctx, ret, ctx->merged_wave_info, 3);
- ret = si_insert_input_ret(ctx, ret, ctx->merged_scratch_offset, 5);
-
- ret = si_insert_input_ptr(ctx, ret, ctx->rw_buffers,
- 8 + SI_SGPR_RW_BUFFERS);
- ret = si_insert_input_ptr(ctx, ret,
- ctx->bindless_samplers_and_images,
- 8 + SI_SGPR_BINDLESS_SAMPLERS_AND_IMAGES);
- if (ctx->screen->use_ngg) {
- ret = si_insert_input_ptr(ctx, ret, ctx->vs_state_bits,
- 8 + SI_SGPR_VS_STATE_BITS);
- }
-
- unsigned vgpr;
- if (ctx->type == PIPE_SHADER_VERTEX)
- vgpr = 8 + GFX9_VSGS_NUM_USER_SGPR;
- else
- vgpr = 8 + GFX9_TESGS_NUM_USER_SGPR;
-
- ret = si_insert_input_ret_float(ctx, ret, ctx->gs_vtx01_offset, vgpr++);
- ret = si_insert_input_ret_float(ctx, ret, ctx->gs_vtx23_offset, vgpr++);
- ret = si_insert_input_ret_float(ctx, ret, ctx->args.gs_prim_id, vgpr++);
- ret = si_insert_input_ret_float(ctx, ret, ctx->args.gs_invocation_id, vgpr++);
- ret = si_insert_input_ret_float(ctx, ret, ctx->gs_vtx45_offset, vgpr++);
- ctx->return_value = ret;
-}
-
-static void si_llvm_emit_ls_epilogue(struct ac_shader_abi *abi,
- unsigned max_outputs,
- LLVMValueRef *addrs)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct si_shader *shader = ctx->shader;
- struct tgsi_shader_info *info = &shader->selector->info;
- unsigned i, chan;
- LLVMValueRef vertex_id = ac_get_arg(&ctx->ac, ctx->rel_auto_id);
- LLVMValueRef vertex_dw_stride = get_tcs_in_vertex_dw_stride(ctx);
- LLVMValueRef base_dw_addr = LLVMBuildMul(ctx->ac.builder, vertex_id,
- vertex_dw_stride, "");
-
- /* Write outputs to LDS. The next shader (TCS aka HS) will read
- * its inputs from it. */
- for (i = 0; i < info->num_outputs; i++) {
- unsigned name = info->output_semantic_name[i];
- unsigned index = info->output_semantic_index[i];
-
- /* The ARB_shader_viewport_layer_array spec contains the
- * following issue:
- *
- * 2) What happens if gl_ViewportIndex or gl_Layer is
- * written in the vertex shader and a geometry shader is
- * present?
- *
- * RESOLVED: The value written by the last vertex processing
- * stage is used. If the last vertex processing stage
- * (vertex, tessellation evaluation or geometry) does not
- * statically assign to gl_ViewportIndex or gl_Layer, index
- * or layer zero is assumed.
- *
- * So writes to those outputs in VS-as-LS are simply ignored.
- */
- if (name == TGSI_SEMANTIC_LAYER ||
- name == TGSI_SEMANTIC_VIEWPORT_INDEX)
- continue;
-
- int param = si_shader_io_get_unique_index(name, index, false);
- LLVMValueRef dw_addr = LLVMBuildAdd(ctx->ac.builder, base_dw_addr,
- LLVMConstInt(ctx->i32, param * 4, 0), "");
-
- for (chan = 0; chan < 4; chan++) {
- if (!(info->output_usagemask[i] & (1 << chan)))
- continue;
-
- lshs_lds_store(ctx, chan, dw_addr,
- LLVMBuildLoad(ctx->ac.builder, addrs[4 * i + chan], ""));
- }
- }
-
- if (ctx->screen->info.chip_class >= GFX9)
- si_set_ls_return_value_for_tcs(ctx);
-}
-
-static void si_llvm_emit_es_epilogue(struct ac_shader_abi *abi,
- unsigned max_outputs,
- LLVMValueRef *addrs)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct si_shader *es = ctx->shader;
- struct tgsi_shader_info *info = &es->selector->info;
- LLVMValueRef lds_base = NULL;
- unsigned chan;
- int i;
-
- if (ctx->screen->info.chip_class >= GFX9 && info->num_outputs) {
- unsigned itemsize_dw = es->selector->esgs_itemsize / 4;
- LLVMValueRef vertex_idx = ac_get_thread_id(&ctx->ac);
- LLVMValueRef wave_idx = si_unpack_param(ctx, ctx->merged_wave_info, 24, 4);
- vertex_idx = LLVMBuildOr(ctx->ac.builder, vertex_idx,
- LLVMBuildMul(ctx->ac.builder, wave_idx,
- LLVMConstInt(ctx->i32, ctx->ac.wave_size, false), ""), "");
- lds_base = LLVMBuildMul(ctx->ac.builder, vertex_idx,
- LLVMConstInt(ctx->i32, itemsize_dw, 0), "");
- }
-
- for (i = 0; i < info->num_outputs; i++) {
- int param;
-
- if (info->output_semantic_name[i] == TGSI_SEMANTIC_VIEWPORT_INDEX ||
- info->output_semantic_name[i] == TGSI_SEMANTIC_LAYER)
- continue;
-
- param = si_shader_io_get_unique_index(info->output_semantic_name[i],
- info->output_semantic_index[i], false);
-
- for (chan = 0; chan < 4; chan++) {
- if (!(info->output_usagemask[i] & (1 << chan)))
- continue;
-
- LLVMValueRef out_val = LLVMBuildLoad(ctx->ac.builder, addrs[4 * i + chan], "");
- out_val = ac_to_integer(&ctx->ac, out_val);
-
- /* GFX9 has the ESGS ring in LDS. */
- if (ctx->screen->info.chip_class >= GFX9) {
- LLVMValueRef idx = LLVMConstInt(ctx->i32, param * 4 + chan, false);
- idx = LLVMBuildAdd(ctx->ac.builder, lds_base, idx, "");
- ac_build_indexed_store(&ctx->ac, ctx->esgs_ring, idx, out_val);
- continue;
- }
-
- ac_build_buffer_store_dword(&ctx->ac,
- ctx->esgs_ring,
- out_val, 1, NULL,
- ac_get_arg(&ctx->ac, ctx->es2gs_offset),
- (4 * param + chan) * 4,
- ac_glc | ac_slc | ac_swizzled);
- }
- }
-
- if (ctx->screen->info.chip_class >= GFX9)
- si_set_es_return_value_for_gs(ctx);
-}
-
-static LLVMValueRef si_get_gs_wave_id(struct si_shader_context *ctx)
-{
- if (ctx->screen->info.chip_class >= GFX9)
- return si_unpack_param(ctx, ctx->merged_wave_info, 16, 8);
- else
- return ac_get_arg(&ctx->ac, ctx->gs_wave_id);
-}
-
-static void emit_gs_epilogue(struct si_shader_context *ctx)
-{
- if (ctx->shader->key.as_ngg) {
- gfx10_ngg_gs_emit_epilogue(ctx);
- return;
- }
-
- if (ctx->screen->info.chip_class >= GFX10)
- LLVMBuildFence(ctx->ac.builder, LLVMAtomicOrderingRelease, false, "");
-
- ac_build_sendmsg(&ctx->ac, AC_SENDMSG_GS_OP_NOP | AC_SENDMSG_GS_DONE,
- si_get_gs_wave_id(ctx));
-
- if (ctx->screen->info.chip_class >= GFX9)
- ac_build_endif(&ctx->ac, ctx->merged_wrap_if_label);
-}
-
-static void si_llvm_emit_gs_epilogue(struct ac_shader_abi *abi,
- unsigned max_outputs,
- LLVMValueRef *addrs)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct tgsi_shader_info UNUSED *info = &ctx->shader->selector->info;
-
- assert(info->num_outputs <= max_outputs);
-
- emit_gs_epilogue(ctx);
-}
-
-static void si_tgsi_emit_gs_epilogue(struct lp_build_tgsi_context *bld_base)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- emit_gs_epilogue(ctx);
-}
-
-static void si_llvm_emit_vs_epilogue(struct ac_shader_abi *abi,
- unsigned max_outputs,
- LLVMValueRef *addrs)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct tgsi_shader_info *info = &ctx->shader->selector->info;
- struct si_shader_output_values *outputs = NULL;
- int i,j;
-
- assert(!ctx->shader->is_gs_copy_shader);
- assert(info->num_outputs <= max_outputs);
-
- outputs = MALLOC((info->num_outputs + 1) * sizeof(outputs[0]));
-
- for (i = 0; i < info->num_outputs; i++) {
- outputs[i].semantic_name = info->output_semantic_name[i];
- outputs[i].semantic_index = info->output_semantic_index[i];
-
- for (j = 0; j < 4; j++) {
- outputs[i].values[j] =
- LLVMBuildLoad(ctx->ac.builder,
- addrs[4 * i + j],
- "");
- outputs[i].vertex_stream[j] =
- (info->output_streams[i] >> (2 * j)) & 3;
- }
- }
-
- if (!ctx->screen->use_ngg_streamout &&
- ctx->shader->selector->so.num_outputs)
- si_llvm_emit_streamout(ctx, outputs, i, 0);
-
- /* Export PrimitiveID. */
- if (ctx->shader->key.mono.u.vs_export_prim_id) {
- outputs[i].semantic_name = TGSI_SEMANTIC_PRIMID;
- outputs[i].semantic_index = 0;
- outputs[i].values[0] = ac_to_float(&ctx->ac, si_get_primitive_id(ctx, 0));
- for (j = 1; j < 4; j++)
- outputs[i].values[j] = LLVMConstReal(ctx->f32, 0);
-
- memset(outputs[i].vertex_stream, 0,
- sizeof(outputs[i].vertex_stream));
- i++;
- }
-
- si_llvm_export_vs(ctx, outputs, i);
- FREE(outputs);
-}
-
-static void si_llvm_emit_prim_discard_cs_epilogue(struct ac_shader_abi *abi,
- unsigned max_outputs,
- LLVMValueRef *addrs)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct tgsi_shader_info *info = &ctx->shader->selector->info;
- LLVMValueRef pos[4] = {};
-
- assert(info->num_outputs <= max_outputs);
-
- for (unsigned i = 0; i < info->num_outputs; i++) {
- if (info->output_semantic_name[i] != TGSI_SEMANTIC_POSITION)
- continue;
-
- for (unsigned chan = 0; chan < 4; chan++)
- pos[chan] = LLVMBuildLoad(ctx->ac.builder, addrs[4 * i + chan], "");
- break;
- }
- assert(pos[0] != NULL);
-
- /* Return the position output. */
- LLVMValueRef ret = ctx->return_value;
- for (unsigned chan = 0; chan < 4; chan++)
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret, pos[chan], chan, "");
- ctx->return_value = ret;
-}
-
-static void si_tgsi_emit_epilogue(struct lp_build_tgsi_context *bld_base)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
-
- ctx->abi.emit_outputs(&ctx->abi, RADEON_LLVM_MAX_OUTPUTS,
- &ctx->outputs[0][0]);
-}
-
-struct si_ps_exports {
- unsigned num;
- struct ac_export_args args[10];
-};
-
-static void si_export_mrt_z(struct lp_build_tgsi_context *bld_base,
- LLVMValueRef depth, LLVMValueRef stencil,
- LLVMValueRef samplemask, struct si_ps_exports *exp)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- struct ac_export_args args;
-
- ac_export_mrt_z(&ctx->ac, depth, stencil, samplemask, &args);
-
- memcpy(&exp->args[exp->num++], &args, sizeof(args));
-}
-
-static void si_export_mrt_color(struct lp_build_tgsi_context *bld_base,
- LLVMValueRef *color, unsigned index,
- unsigned samplemask_param,
- bool is_last, struct si_ps_exports *exp)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- int i;
-
- /* Clamp color */
- if (ctx->shader->key.part.ps.epilog.clamp_color)
- for (i = 0; i < 4; i++)
- color[i] = ac_build_clamp(&ctx->ac, color[i]);
-
- /* Alpha to one */
- if (ctx->shader->key.part.ps.epilog.alpha_to_one)
- color[3] = ctx->ac.f32_1;
-
- /* Alpha test */
- if (index == 0 &&
- ctx->shader->key.part.ps.epilog.alpha_func != PIPE_FUNC_ALWAYS)
- si_alpha_test(bld_base, color[3]);
-
- /* Line & polygon smoothing */
- if (ctx->shader->key.part.ps.epilog.poly_line_smoothing)
- color[3] = si_scale_alpha_by_sample_mask(bld_base, color[3],
- samplemask_param);
-
- /* If last_cbuf > 0, FS_COLOR0_WRITES_ALL_CBUFS is true. */
- if (ctx->shader->key.part.ps.epilog.last_cbuf > 0) {
- struct ac_export_args args[8];
- int c, last = -1;
-
- /* Get the export arguments, also find out what the last one is. */
- for (c = 0; c <= ctx->shader->key.part.ps.epilog.last_cbuf; c++) {
- si_llvm_init_export_args(ctx, color,
- V_008DFC_SQ_EXP_MRT + c, &args[c]);
- if (args[c].enabled_channels)
- last = c;
- }
-
- /* Emit all exports. */
- for (c = 0; c <= ctx->shader->key.part.ps.epilog.last_cbuf; c++) {
- if (is_last && last == c) {
- args[c].valid_mask = 1; /* whether the EXEC mask is valid */
- args[c].done = 1; /* DONE bit */
- } else if (!args[c].enabled_channels)
- continue; /* unnecessary NULL export */
-
- memcpy(&exp->args[exp->num++], &args[c], sizeof(args[c]));
- }
- } else {
- struct ac_export_args args;
-
- /* Export */
- si_llvm_init_export_args(ctx, color, V_008DFC_SQ_EXP_MRT + index,
- &args);
- if (is_last) {
- args.valid_mask = 1; /* whether the EXEC mask is valid */
- args.done = 1; /* DONE bit */
- } else if (!args.enabled_channels)
- return; /* unnecessary NULL export */
-
- memcpy(&exp->args[exp->num++], &args, sizeof(args));
- }
-}
-
-static void si_emit_ps_exports(struct si_shader_context *ctx,
- struct si_ps_exports *exp)
-{
- for (unsigned i = 0; i < exp->num; i++)
- ac_build_export(&ctx->ac, &exp->args[i]);
-}
-
-/**
- * Return PS outputs in this order:
- *
- * v[0:3] = color0.xyzw
- * v[4:7] = color1.xyzw
- * ...
- * vN+0 = Depth
- * vN+1 = Stencil
- * vN+2 = SampleMask
- * vN+3 = SampleMaskIn (used for OpenGL smoothing)
- *
- * The alpha-ref SGPR is returned via its original location.
- */
-static void si_llvm_return_fs_outputs(struct ac_shader_abi *abi,
- unsigned max_outputs,
- LLVMValueRef *addrs)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
- struct si_shader *shader = ctx->shader;
- struct tgsi_shader_info *info = &shader->selector->info;
- LLVMBuilderRef builder = ctx->ac.builder;
- unsigned i, j, first_vgpr, vgpr;
-
- LLVMValueRef color[8][4] = {};
- LLVMValueRef depth = NULL, stencil = NULL, samplemask = NULL;
- LLVMValueRef ret;
-
- if (ctx->postponed_kill)
- ac_build_kill_if_false(&ctx->ac, LLVMBuildLoad(builder, ctx->postponed_kill, ""));
-
- /* Read the output values. */
- for (i = 0; i < info->num_outputs; i++) {
- unsigned semantic_name = info->output_semantic_name[i];
- unsigned semantic_index = info->output_semantic_index[i];
-
- switch (semantic_name) {
- case TGSI_SEMANTIC_COLOR:
- assert(semantic_index < 8);
- for (j = 0; j < 4; j++) {
- LLVMValueRef ptr = addrs[4 * i + j];
- LLVMValueRef result = LLVMBuildLoad(builder, ptr, "");
- color[semantic_index][j] = result;
- }
+ case TGSI_SEMANTIC_VIEWPORT_INDEX:
+ viewport_index_value = outputs[i].values[0];
break;
- case TGSI_SEMANTIC_POSITION:
- depth = LLVMBuildLoad(builder,
- addrs[4 * i + 2], "");
+ case TGSI_SEMANTIC_EDGEFLAG:
+ edgeflag_value = outputs[i].values[0];
break;
- case TGSI_SEMANTIC_STENCIL:
- stencil = LLVMBuildLoad(builder,
- addrs[4 * i + 1], "");
+ case TGSI_SEMANTIC_CLIPDIST:
+ if (!shader->key.opt.clip_disable) {
+ unsigned index = 2 + outputs[i].semantic_index;
+ si_llvm_init_vs_export_args(ctx, outputs[i].values,
+ V_008DFC_SQ_EXP_POS + index,
+ &pos_args[index]);
+ }
break;
- case TGSI_SEMANTIC_SAMPLEMASK:
- samplemask = LLVMBuildLoad(builder,
- addrs[4 * i + 0], "");
+ case TGSI_SEMANTIC_CLIPVERTEX:
+ if (!shader->key.opt.clip_disable) {
+ si_llvm_emit_clipvertex(ctx, pos_args,
+ outputs[i].values);
+ }
break;
- default:
- fprintf(stderr, "Warning: GFX6 unhandled fs output type:%d\n",
- semantic_name);
}
}
- /* Fill the return structure. */
- ret = ctx->return_value;
-
- /* Set SGPRs. */
- ret = LLVMBuildInsertValue(builder, ret,
- ac_to_integer(&ctx->ac,
- LLVMGetParam(ctx->main_fn,
- SI_PARAM_ALPHA_REF)),
- SI_SGPR_ALPHA_REF, "");
-
- /* Set VGPRs */
- first_vgpr = vgpr = SI_SGPR_ALPHA_REF + 1;
- for (i = 0; i < ARRAY_SIZE(color); i++) {
- if (!color[i][0])
- continue;
-
- for (j = 0; j < 4; j++)
- ret = LLVMBuildInsertValue(builder, ret, color[i][j], vgpr++, "");
+ /* We need to add the position output manually if it's missing. */
+ if (!pos_args[0].out[0]) {
+ pos_args[0].enabled_channels = 0xf; /* writemask */
+ pos_args[0].valid_mask = 0; /* EXEC mask */
+ pos_args[0].done = 0; /* last export? */
+ pos_args[0].target = V_008DFC_SQ_EXP_POS;
+ pos_args[0].compr = 0; /* COMPR flag */
+ pos_args[0].out[0] = ctx->ac.f32_0; /* X */
+ pos_args[0].out[1] = ctx->ac.f32_0; /* Y */
+ pos_args[0].out[2] = ctx->ac.f32_0; /* Z */
+ pos_args[0].out[3] = ctx->ac.f32_1; /* W */
}
- if (depth)
- ret = LLVMBuildInsertValue(builder, ret, depth, vgpr++, "");
- if (stencil)
- ret = LLVMBuildInsertValue(builder, ret, stencil, vgpr++, "");
- if (samplemask)
- ret = LLVMBuildInsertValue(builder, ret, samplemask, vgpr++, "");
-
- /* Add the input sample mask for smoothing at the end. */
- if (vgpr < first_vgpr + PS_EPILOG_SAMPLEMASK_MIN_LOC)
- vgpr = first_vgpr + PS_EPILOG_SAMPLEMASK_MIN_LOC;
- ret = LLVMBuildInsertValue(builder, ret,
- LLVMGetParam(ctx->main_fn,
- SI_PARAM_SAMPLE_COVERAGE), vgpr++, "");
-
- ctx->return_value = ret;
-}
-
-static void membar_emit(
- const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMValueRef src0 = lp_build_emit_fetch(bld_base, emit_data->inst, 0, 0);
- unsigned flags = LLVMConstIntGetZExtValue(src0);
- unsigned wait_flags = 0;
- if (flags & TGSI_MEMBAR_THREAD_GROUP)
- wait_flags |= AC_WAIT_LGKM | AC_WAIT_VLOAD | AC_WAIT_VSTORE;
-
- if (flags & (TGSI_MEMBAR_ATOMIC_BUFFER |
- TGSI_MEMBAR_SHADER_BUFFER |
- TGSI_MEMBAR_SHADER_IMAGE))
- wait_flags |= AC_WAIT_VLOAD | AC_WAIT_VSTORE;
-
- if (flags & TGSI_MEMBAR_SHARED)
- wait_flags |= AC_WAIT_LGKM;
-
- ac_build_waitcnt(&ctx->ac, wait_flags);
-}
-
-static void clock_emit(
- const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMValueRef tmp = ac_build_shader_clock(&ctx->ac);
-
- emit_data->output[0] =
- LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->i32_0, "");
- emit_data->output[1] =
- LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->i32_1, "");
-}
-
-static void si_llvm_emit_ddxy(
- const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- unsigned opcode = emit_data->info->opcode;
- LLVMValueRef val;
- int idx;
- unsigned mask;
-
- if (opcode == TGSI_OPCODE_DDX_FINE)
- mask = AC_TID_MASK_LEFT;
- else if (opcode == TGSI_OPCODE_DDY_FINE)
- mask = AC_TID_MASK_TOP;
- else
- mask = AC_TID_MASK_TOP_LEFT;
+ bool pos_writes_edgeflag = shader->selector->info.writes_edgeflag &&
+ !shader->key.as_ngg;
- /* for DDX we want to next X pixel, DDY next Y pixel. */
- idx = (opcode == TGSI_OPCODE_DDX || opcode == TGSI_OPCODE_DDX_FINE) ? 1 : 2;
+ /* Write the misc vector (point size, edgeflag, layer, viewport). */
+ if (shader->selector->info.writes_psize ||
+ pos_writes_edgeflag ||
+ shader->selector->info.writes_viewport_index ||
+ shader->selector->info.writes_layer) {
+ pos_args[1].enabled_channels = shader->selector->info.writes_psize |
+ (pos_writes_edgeflag << 1) |
+ (shader->selector->info.writes_layer << 2);
- val = ac_to_integer(&ctx->ac, emit_data->args[0]);
- val = ac_build_ddxy(&ctx->ac, mask, idx, val);
- emit_data->output[emit_data->chan] = val;
-}
+ pos_args[1].valid_mask = 0; /* EXEC mask */
+ pos_args[1].done = 0; /* last export? */
+ pos_args[1].target = V_008DFC_SQ_EXP_POS + 1;
+ pos_args[1].compr = 0; /* COMPR flag */
+ pos_args[1].out[0] = ctx->ac.f32_0; /* X */
+ pos_args[1].out[1] = ctx->ac.f32_0; /* Y */
+ pos_args[1].out[2] = ctx->ac.f32_0; /* Z */
+ pos_args[1].out[3] = ctx->ac.f32_0; /* W */
-static void build_interp_intrinsic(const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- struct si_shader *shader = ctx->shader;
- const struct tgsi_shader_info *info = &shader->selector->info;
- LLVMValueRef interp_param;
- const struct tgsi_full_instruction *inst = emit_data->inst;
- const struct tgsi_full_src_register *input = &inst->Src[0];
- int input_base, input_array_size;
- int chan;
- int i;
- LLVMValueRef prim_mask = ac_get_arg(&ctx->ac, ctx->args.prim_mask);
- LLVMValueRef array_idx, offset_x = NULL, offset_y = NULL;
- int interp_param_idx;
- unsigned interp;
- unsigned location;
-
- if (inst->Instruction.Opcode == TGSI_OPCODE_INTERP_OFFSET) {
- /* offset is in second src, first two channels */
- offset_x = lp_build_emit_fetch(bld_base, emit_data->inst, 1,
- TGSI_CHAN_X);
- offset_y = lp_build_emit_fetch(bld_base, emit_data->inst, 1,
- TGSI_CHAN_Y);
- } else if (inst->Instruction.Opcode == TGSI_OPCODE_INTERP_SAMPLE) {
- LLVMValueRef sample_position;
- LLVMValueRef sample_id;
- LLVMValueRef halfval = LLVMConstReal(ctx->f32, 0.5f);
-
- /* fetch sample ID, then fetch its sample position,
- * and place into first two channels.
- */
- sample_id = lp_build_emit_fetch(bld_base,
- emit_data->inst, 1, TGSI_CHAN_X);
- sample_id = ac_to_integer(&ctx->ac, sample_id);
+ if (shader->selector->info.writes_psize)
+ pos_args[1].out[0] = psize_value;
- /* Section 8.13.2 (Interpolation Functions) of the OpenGL Shading
- * Language 4.50 spec says about interpolateAtSample:
- *
- * "Returns the value of the input interpolant variable at
- * the location of sample number sample. If multisample
- * buffers are not available, the input variable will be
- * evaluated at the center of the pixel. If sample sample
- * does not exist, the position used to interpolate the
- * input variable is undefined."
- *
- * This means that sample_id values outside of the valid are
- * in fact valid input, and the usual mechanism for loading the
- * sample position doesn't work.
- */
- if (ctx->shader->key.mono.u.ps.interpolate_at_sample_force_center) {
- LLVMValueRef center[4] = {
- LLVMConstReal(ctx->f32, 0.5),
- LLVMConstReal(ctx->f32, 0.5),
- ctx->ac.f32_0,
- ctx->ac.f32_0,
- };
+ if (pos_writes_edgeflag) {
+ /* The output is a float, but the hw expects an integer
+ * with the first bit containing the edge flag. */
+ edgeflag_value = LLVMBuildFPToUI(ctx->ac.builder,
+ edgeflag_value,
+ ctx->ac.i32, "");
+ edgeflag_value = ac_build_umin(&ctx->ac,
+ edgeflag_value,
+ ctx->ac.i32_1);
- sample_position = ac_build_gather_values(&ctx->ac, center, 4);
- } else {
- sample_position = load_sample_position(&ctx->abi, sample_id);
+ /* The LLVM intrinsic expects a float. */
+ pos_args[1].out[1] = ac_to_float(&ctx->ac, edgeflag_value);
}
- offset_x = LLVMBuildExtractElement(ctx->ac.builder, sample_position,
- ctx->i32_0, "");
-
- offset_x = LLVMBuildFSub(ctx->ac.builder, offset_x, halfval, "");
- offset_y = LLVMBuildExtractElement(ctx->ac.builder, sample_position,
- ctx->i32_1, "");
- offset_y = LLVMBuildFSub(ctx->ac.builder, offset_y, halfval, "");
- }
-
- assert(input->Register.File == TGSI_FILE_INPUT);
+ if (ctx->screen->info.chip_class >= GFX9) {
+ /* GFX9 has the layer in out.z[10:0] and the viewport
+ * index in out.z[19:16].
+ */
+ if (shader->selector->info.writes_layer)
+ pos_args[1].out[2] = layer_value;
- if (input->Register.Indirect) {
- unsigned array_id = input->Indirect.ArrayID;
+ if (shader->selector->info.writes_viewport_index) {
+ LLVMValueRef v = viewport_index_value;
- if (array_id) {
- input_base = info->input_array_first[array_id];
- input_array_size = info->input_array_last[array_id] - input_base + 1;
+ v = ac_to_integer(&ctx->ac, v);
+ v = LLVMBuildShl(ctx->ac.builder, v,
+ LLVMConstInt(ctx->ac.i32, 16, 0), "");
+ v = LLVMBuildOr(ctx->ac.builder, v,
+ ac_to_integer(&ctx->ac, pos_args[1].out[2]), "");
+ pos_args[1].out[2] = ac_to_float(&ctx->ac, v);
+ pos_args[1].enabled_channels |= 1 << 2;
+ }
} else {
- input_base = inst->Src[0].Register.Index;
- input_array_size = info->num_inputs - input_base;
- }
-
- array_idx = si_get_indirect_index(ctx, &input->Indirect,
- 1, input->Register.Index - input_base);
- } else {
- input_base = inst->Src[0].Register.Index;
- input_array_size = 1;
- array_idx = ctx->i32_0;
- }
-
- interp = shader->selector->info.input_interpolate[input_base];
-
- if (inst->Instruction.Opcode == TGSI_OPCODE_INTERP_OFFSET ||
- inst->Instruction.Opcode == TGSI_OPCODE_INTERP_SAMPLE)
- location = TGSI_INTERPOLATE_LOC_CENTER;
- else
- location = TGSI_INTERPOLATE_LOC_CENTROID;
-
- interp_param_idx = lookup_interp_param_index(interp, location);
- if (interp_param_idx == -1)
- return;
- else if (interp_param_idx)
- interp_param = LLVMGetParam(ctx->main_fn, interp_param_idx);
- else
- interp_param = NULL;
-
- if (inst->Instruction.Opcode == TGSI_OPCODE_INTERP_OFFSET ||
- inst->Instruction.Opcode == TGSI_OPCODE_INTERP_SAMPLE) {
- LLVMValueRef ij_out[2];
- LLVMValueRef ddxy_out = ac_build_ddxy_interp(&ctx->ac, interp_param);
-
- /*
- * take the I then J parameters, and the DDX/Y for it, and
- * calculate the IJ inputs for the interpolator.
- * temp1 = ddx * offset/sample.x + I;
- * interp_param.I = ddy * offset/sample.y + temp1;
- * temp1 = ddx * offset/sample.x + J;
- * interp_param.J = ddy * offset/sample.y + temp1;
- */
- for (i = 0; i < 2; i++) {
- LLVMValueRef ix_ll = LLVMConstInt(ctx->i32, i, 0);
- LLVMValueRef iy_ll = LLVMConstInt(ctx->i32, i + 2, 0);
- LLVMValueRef ddx_el = LLVMBuildExtractElement(ctx->ac.builder,
- ddxy_out, ix_ll, "");
- LLVMValueRef ddy_el = LLVMBuildExtractElement(ctx->ac.builder,
- ddxy_out, iy_ll, "");
- LLVMValueRef interp_el = LLVMBuildExtractElement(ctx->ac.builder,
- interp_param, ix_ll, "");
- LLVMValueRef temp;
-
- interp_el = ac_to_float(&ctx->ac, interp_el);
-
- temp = ac_build_fmad(&ctx->ac, ddx_el, offset_x, interp_el);
- ij_out[i] = ac_build_fmad(&ctx->ac, ddy_el, offset_y, temp);
- }
- interp_param = ac_build_gather_values(&ctx->ac, ij_out, 2);
- }
-
- if (interp_param)
- interp_param = ac_to_float(&ctx->ac, interp_param);
-
- for (chan = 0; chan < 4; chan++) {
- LLVMValueRef gather = LLVMGetUndef(LLVMVectorType(ctx->f32, input_array_size));
- unsigned schan = tgsi_util_get_full_src_register_swizzle(&inst->Src[0], chan);
-
- for (unsigned idx = 0; idx < input_array_size; ++idx) {
- LLVMValueRef v, i = NULL, j = NULL;
+ if (shader->selector->info.writes_layer)
+ pos_args[1].out[2] = layer_value;
- if (interp_param) {
- i = LLVMBuildExtractElement(
- ctx->ac.builder, interp_param, ctx->i32_0, "");
- j = LLVMBuildExtractElement(
- ctx->ac.builder, interp_param, ctx->i32_1, "");
+ if (shader->selector->info.writes_viewport_index) {
+ pos_args[1].out[3] = viewport_index_value;
+ pos_args[1].enabled_channels |= 1 << 3;
}
- v = si_build_fs_interp(ctx, input_base + idx, schan,
- prim_mask, i, j);
-
- gather = LLVMBuildInsertElement(ctx->ac.builder,
- gather, v, LLVMConstInt(ctx->i32, idx, false), "");
}
-
- emit_data->output[chan] = LLVMBuildExtractElement(
- ctx->ac.builder, gather, array_idx, "");
- }
-}
-
-static void vote_all_emit(
- const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
-
- LLVMValueRef tmp = ac_build_vote_all(&ctx->ac, emit_data->args[0]);
- emit_data->output[emit_data->chan] =
- LLVMBuildSExt(ctx->ac.builder, tmp, ctx->i32, "");
-}
-
-static void vote_any_emit(
- const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
-
- LLVMValueRef tmp = ac_build_vote_any(&ctx->ac, emit_data->args[0]);
- emit_data->output[emit_data->chan] =
- LLVMBuildSExt(ctx->ac.builder, tmp, ctx->i32, "");
-}
-
-static void vote_eq_emit(
- const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
-
- LLVMValueRef tmp = ac_build_vote_eq(&ctx->ac, emit_data->args[0]);
- emit_data->output[emit_data->chan] =
- LLVMBuildSExt(ctx->ac.builder, tmp, ctx->i32, "");
-}
-
-static void ballot_emit(
- const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMBuilderRef builder = ctx->ac.builder;
- LLVMValueRef tmp;
-
- tmp = lp_build_emit_fetch(bld_base, emit_data->inst, 0, TGSI_CHAN_X);
- tmp = ac_build_ballot(&ctx->ac, tmp);
-
- emit_data->output[0] = LLVMBuildTrunc(builder, tmp, ctx->i32, "");
-
- if (ctx->ac.wave_size == 32) {
- emit_data->output[1] = ctx->i32_0;
- } else {
- tmp = LLVMBuildLShr(builder, tmp, LLVMConstInt(ctx->i64, 32, 0), "");
- emit_data->output[1] = LLVMBuildTrunc(builder, tmp, ctx->i32, "");
- }
-}
-
-static void read_lane_emit(
- const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
-
- if (emit_data->inst->Instruction.Opcode == TGSI_OPCODE_READ_INVOC) {
- emit_data->args[0] = lp_build_emit_fetch(bld_base, emit_data->inst,
- 0, emit_data->src_chan);
-
- /* Always read the source invocation (= lane) from the X channel. */
- emit_data->args[1] = lp_build_emit_fetch(bld_base, emit_data->inst,
- 1, TGSI_CHAN_X);
- emit_data->arg_count = 2;
- }
-
- /* We currently have no other way to prevent LLVM from lifting the icmp
- * calls to a dominating basic block.
- */
- ac_build_optimization_barrier(&ctx->ac, &emit_data->args[0]);
-
- for (unsigned i = 0; i < emit_data->arg_count; ++i)
- emit_data->args[i] = ac_to_integer(&ctx->ac, emit_data->args[i]);
-
- emit_data->output[emit_data->chan] =
- ac_build_intrinsic(&ctx->ac, action->intr_name,
- ctx->i32, emit_data->args, emit_data->arg_count,
- AC_FUNC_ATTR_READNONE |
- AC_FUNC_ATTR_CONVERGENT);
-}
-
-static unsigned si_llvm_get_stream(struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- struct tgsi_src_register src0 = emit_data->inst->Src[0].Register;
- LLVMValueRef imm;
- unsigned stream;
-
- assert(src0.File == TGSI_FILE_IMMEDIATE);
-
- imm = ctx->imms[src0.Index * TGSI_NUM_CHANNELS + src0.SwizzleX];
- stream = LLVMConstIntGetZExtValue(imm) & 0x3;
- return stream;
-}
-
-/* Emit one vertex from the geometry shader */
-static void si_llvm_emit_vertex(struct ac_shader_abi *abi,
- unsigned stream,
- LLVMValueRef *addrs)
-{
- struct si_shader_context *ctx = si_shader_context_from_abi(abi);
-
- if (ctx->shader->key.as_ngg) {
- gfx10_ngg_gs_emit_vertex(ctx, stream, addrs);
- return;
}
- struct tgsi_shader_info *info = &ctx->shader->selector->info;
- struct si_shader *shader = ctx->shader;
- LLVMValueRef soffset = ac_get_arg(&ctx->ac, ctx->gs2vs_offset);
- LLVMValueRef gs_next_vertex;
- LLVMValueRef can_emit;
- unsigned chan, offset;
- int i;
-
- /* Write vertex attribute values to GSVS ring */
- gs_next_vertex = LLVMBuildLoad(ctx->ac.builder,
- ctx->gs_next_vertex[stream],
- "");
+ for (i = 0; i < 4; i++)
+ if (pos_args[i].out[0])
+ shader->info.nr_pos_exports++;
- /* If this thread has already emitted the declared maximum number of
- * vertices, skip the write: excessive vertex emissions are not
- * supposed to have any effect.
- *
- * If the shader has no writes to memory, kill it instead. This skips
- * further memory loads and may allow LLVM to skip to the end
- * altogether.
+ /* Navi10-14 skip POS0 exports if EXEC=0 and DONE=0, causing a hang.
+ * Setting valid_mask=1 prevents it and has no other effect.
*/
- can_emit = LLVMBuildICmp(ctx->ac.builder, LLVMIntULT, gs_next_vertex,
- LLVMConstInt(ctx->i32,
- shader->selector->gs_max_out_vertices, 0), "");
-
- bool use_kill = !info->writes_memory;
- if (use_kill) {
- ac_build_kill_if_false(&ctx->ac, can_emit);
- } else {
- ac_build_ifcc(&ctx->ac, can_emit, 6505);
- }
-
- offset = 0;
- for (i = 0; i < info->num_outputs; i++) {
- for (chan = 0; chan < 4; chan++) {
- if (!(info->output_usagemask[i] & (1 << chan)) ||
- ((info->output_streams[i] >> (2 * chan)) & 3) != stream)
- continue;
-
- LLVMValueRef out_val = LLVMBuildLoad(ctx->ac.builder, addrs[4 * i + chan], "");
- LLVMValueRef voffset =
- LLVMConstInt(ctx->i32, offset *
- shader->selector->gs_max_out_vertices, 0);
- offset++;
-
- voffset = LLVMBuildAdd(ctx->ac.builder, voffset, gs_next_vertex, "");
- voffset = LLVMBuildMul(ctx->ac.builder, voffset,
- LLVMConstInt(ctx->i32, 4, 0), "");
+ if (ctx->screen->info.family == CHIP_NAVI10 ||
+ ctx->screen->info.family == CHIP_NAVI12 ||
+ ctx->screen->info.family == CHIP_NAVI14)
+ pos_args[0].valid_mask = 1;
- out_val = ac_to_integer(&ctx->ac, out_val);
+ pos_idx = 0;
+ for (i = 0; i < 4; i++) {
+ if (!pos_args[i].out[0])
+ continue;
- ac_build_buffer_store_dword(&ctx->ac,
- ctx->gsvs_ring[stream],
- out_val, 1,
- voffset, soffset, 0,
- ac_glc | ac_slc | ac_swizzled);
- }
- }
+ /* Specify the target we are exporting */
+ pos_args[i].target = V_008DFC_SQ_EXP_POS + pos_idx++;
- gs_next_vertex = LLVMBuildAdd(ctx->ac.builder, gs_next_vertex, ctx->i32_1, "");
- LLVMBuildStore(ctx->ac.builder, gs_next_vertex, ctx->gs_next_vertex[stream]);
+ if (pos_idx == shader->info.nr_pos_exports)
+ /* Specify that this is the last export */
+ pos_args[i].done = 1;
- /* Signal vertex emission if vertex data was written. */
- if (offset) {
- ac_build_sendmsg(&ctx->ac, AC_SENDMSG_GS_OP_EMIT | AC_SENDMSG_GS | (stream << 8),
- si_get_gs_wave_id(ctx));
+ ac_build_export(&ctx->ac, &pos_args[i]);
}
- if (!use_kill)
- ac_build_endif(&ctx->ac, 6505);
-}
-
-/* Emit one vertex from the geometry shader */
-static void si_tgsi_emit_vertex(
- const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
- unsigned stream = si_llvm_get_stream(bld_base, emit_data);
-
- si_llvm_emit_vertex(&ctx->abi, stream, ctx->outputs[0]);
+ /* Build parameter exports. */
+ si_build_param_exports(ctx, outputs, noutput);
}
-/* Cut one primitive from the geometry shader */
-static void si_llvm_emit_primitive(struct ac_shader_abi *abi,
- unsigned stream)
+static void si_llvm_emit_vs_epilogue(struct ac_shader_abi *abi,
+ unsigned max_outputs,
+ LLVMValueRef *addrs)
{
struct si_shader_context *ctx = si_shader_context_from_abi(abi);
+ struct si_shader_info *info = &ctx->shader->selector->info;
+ struct si_shader_output_values *outputs = NULL;
+ int i,j;
- if (ctx->shader->key.as_ngg) {
- LLVMBuildStore(ctx->ac.builder, ctx->ac.i32_0, ctx->gs_curprim_verts[stream]);
- return;
- }
+ assert(!ctx->shader->is_gs_copy_shader);
+ assert(info->num_outputs <= max_outputs);
- /* Signal primitive cut */
- ac_build_sendmsg(&ctx->ac, AC_SENDMSG_GS_OP_CUT | AC_SENDMSG_GS | (stream << 8),
- si_get_gs_wave_id(ctx));
-}
+ outputs = MALLOC((info->num_outputs + 1) * sizeof(outputs[0]));
-/* Cut one primitive from the geometry shader */
-static void si_tgsi_emit_primitive(
- const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
+ for (i = 0; i < info->num_outputs; i++) {
+ outputs[i].semantic_name = info->output_semantic_name[i];
+ outputs[i].semantic_index = info->output_semantic_index[i];
- si_llvm_emit_primitive(&ctx->abi, si_llvm_get_stream(bld_base, emit_data));
-}
+ for (j = 0; j < 4; j++) {
+ outputs[i].values[j] =
+ LLVMBuildLoad(ctx->ac.builder,
+ addrs[4 * i + j],
+ "");
+ outputs[i].vertex_stream[j] =
+ (info->output_streams[i] >> (2 * j)) & 3;
+ }
+ }
-static void si_llvm_emit_barrier(const struct lp_build_tgsi_action *action,
- struct lp_build_tgsi_context *bld_base,
- struct lp_build_emit_data *emit_data)
-{
- struct si_shader_context *ctx = si_shader_context(bld_base);
+ if (!ctx->screen->use_ngg_streamout &&
+ ctx->shader->selector->so.num_outputs)
+ si_llvm_emit_streamout(ctx, outputs, i, 0);
- /* GFX6 only (thanks to a hw bug workaround):
- * The real barrier instruction isn’t needed, because an entire patch
- * always fits into a single wave.
- */
- if (ctx->screen->info.chip_class == GFX6 &&
- ctx->type == PIPE_SHADER_TESS_CTRL) {
- ac_build_waitcnt(&ctx->ac, AC_WAIT_LGKM | AC_WAIT_VLOAD | AC_WAIT_VSTORE);
- return;
+ /* Export PrimitiveID. */
+ if (ctx->shader->key.mono.u.vs_export_prim_id) {
+ outputs[i].semantic_name = TGSI_SEMANTIC_PRIMID;
+ outputs[i].semantic_index = 0;
+ outputs[i].values[0] = ac_to_float(&ctx->ac, si_get_primitive_id(ctx, 0));
+ for (j = 1; j < 4; j++)
+ outputs[i].values[j] = LLVMConstReal(ctx->ac.f32, 0);
+
+ memset(outputs[i].vertex_stream, 0,
+ sizeof(outputs[i].vertex_stream));
+ i++;
}
- ac_build_s_barrier(&ctx->ac);
+ si_llvm_export_vs(ctx, outputs, i);
+ FREE(outputs);
}
-void si_create_function(struct si_shader_context *ctx,
- const char *name,
- LLVMTypeRef *returns, unsigned num_returns,
- unsigned max_workgroup_size)
+static void si_llvm_emit_prim_discard_cs_epilogue(struct ac_shader_abi *abi,
+ unsigned max_outputs,
+ LLVMValueRef *addrs)
{
- si_llvm_create_func(ctx, name, returns, num_returns);
- ctx->return_value = LLVMGetUndef(ctx->return_type);
+ struct si_shader_context *ctx = si_shader_context_from_abi(abi);
+ struct si_shader_info *info = &ctx->shader->selector->info;
+ LLVMValueRef pos[4] = {};
- if (ctx->screen->info.address32_hi) {
- ac_llvm_add_target_dep_function_attr(ctx->main_fn,
- "amdgpu-32bit-address-high-bits",
- ctx->screen->info.address32_hi);
- }
+ assert(info->num_outputs <= max_outputs);
+
+ for (unsigned i = 0; i < info->num_outputs; i++) {
+ if (info->output_semantic_name[i] != TGSI_SEMANTIC_POSITION)
+ continue;
- LLVMAddTargetDependentFunctionAttr(ctx->main_fn,
- "no-signed-zeros-fp-math",
- "true");
+ for (unsigned chan = 0; chan < 4; chan++)
+ pos[chan] = LLVMBuildLoad(ctx->ac.builder, addrs[4 * i + chan], "");
+ break;
+ }
+ assert(pos[0] != NULL);
- ac_llvm_set_workgroup_size(ctx->main_fn, max_workgroup_size);
+ /* Return the position output. */
+ LLVMValueRef ret = ctx->return_value;
+ for (unsigned chan = 0; chan < 4; chan++)
+ ret = LLVMBuildInsertValue(ctx->ac.builder, ret, pos[chan], chan, "");
+ ctx->return_value = ret;
}
static void declare_streamout_params(struct si_shader_context *ctx,
}
}
+static void declare_vb_descriptor_input_sgprs(struct si_shader_context *ctx)
+{
+ ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_CONST_DESC_PTR, &ctx->vertex_buffers);
+
+ unsigned num_vbos_in_user_sgprs = ctx->shader->selector->num_vbos_in_user_sgprs;
+ if (num_vbos_in_user_sgprs) {
+ unsigned user_sgprs = ctx->args.num_sgprs_used;
+
+ if (si_is_merged_shader(ctx))
+ user_sgprs -= 8;
+ assert(user_sgprs <= SI_SGPR_VS_VB_DESCRIPTOR_FIRST);
+
+ /* Declare unused SGPRs to align VB descriptors to 4 SGPRs (hw requirement). */
+ for (unsigned i = user_sgprs; i < SI_SGPR_VS_VB_DESCRIPTOR_FIRST; i++)
+ ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL); /* unused */
+
+ assert(num_vbos_in_user_sgprs <= ARRAY_SIZE(ctx->vb_descriptors));
+ for (unsigned i = 0; i < num_vbos_in_user_sgprs; i++)
+ ac_add_arg(&ctx->args, AC_ARG_SGPR, 4, AC_ARG_INT, &ctx->vb_descriptors[i]);
+ }
+}
+
static void declare_vs_input_vgprs(struct si_shader_context *ctx,
- unsigned *num_prolog_vgprs)
+ unsigned *num_prolog_vgprs,
+ bool ngg_cull_shader)
{
struct si_shader *shader = ctx->shader;
}
if (!shader->is_gs_copy_shader) {
+ if (shader->key.opt.ngg_culling && !ngg_cull_shader) {
+ ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
+ &ctx->ngg_old_thread_id);
+ }
+
/* Vertex load indices. */
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &ctx->vertex_index0);
- for (unsigned i = 1; i < shader->selector->info.num_inputs; i++)
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, NULL);
+ if (shader->selector->info.num_inputs) {
+ ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
+ &ctx->vertex_index0);
+ for (unsigned i = 1; i < shader->selector->info.num_inputs; i++)
+ ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, NULL);
+ }
*num_prolog_vgprs += shader->selector->info.num_inputs;
}
}
}
}
-static void declare_tes_input_vgprs(struct si_shader_context *ctx)
+static void declare_tes_input_vgprs(struct si_shader_context *ctx, bool ngg_cull_shader)
{
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT, &ctx->tes_u);
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT, &ctx->tes_v);
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &ctx->tes_rel_patch_id);
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &ctx->args.tes_patch_id);
+
+ if (ctx->shader->key.opt.ngg_culling && !ngg_cull_shader) {
+ ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
+ &ctx->ngg_old_thread_id);
+ }
}
enum {
SI_SHADER_MERGED_VERTEX_OR_TESSEVAL_GEOMETRY,
};
-static void add_arg_checked(struct ac_shader_args *args,
- enum ac_arg_regfile file,
- unsigned registers, enum ac_arg_type type,
- struct ac_arg *arg,
- unsigned idx)
+void si_add_arg_checked(struct ac_shader_args *args,
+ enum ac_arg_regfile file,
+ unsigned registers, enum ac_arg_type type,
+ struct ac_arg *arg,
+ unsigned idx)
{
assert(args->arg_count == idx);
ac_add_arg(args, file, registers, type, arg);
}
-static void create_function(struct si_shader_context *ctx)
+void si_create_function(struct si_shader_context *ctx, bool ngg_cull_shader)
{
struct si_shader *shader = ctx->shader;
- LLVMTypeRef returns[16+32*4];
+ LLVMTypeRef returns[AC_MAX_ARGS];
unsigned i, num_return_sgprs;
unsigned num_returns = 0;
unsigned num_prolog_vgprs = 0;
declare_vs_blit_inputs(ctx, vs_blit_property);
/* VGPRs */
- declare_vs_input_vgprs(ctx, &num_prolog_vgprs);
+ declare_vs_input_vgprs(ctx, &num_prolog_vgprs, ngg_cull_shader);
break;
}
declare_per_stage_desc_pointers(ctx, true);
declare_vs_specific_input_sgprs(ctx);
- if (!shader->is_gs_copy_shader) {
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_CONST_DESC_PTR,
- &ctx->vertex_buffers);
- }
+ if (!shader->is_gs_copy_shader)
+ declare_vb_descriptor_input_sgprs(ctx);
if (shader->key.as_es) {
ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
}
/* VGPRs */
- declare_vs_input_vgprs(ctx, &num_prolog_vgprs);
+ declare_vs_input_vgprs(ctx, &num_prolog_vgprs, ngg_cull_shader);
/* Return values */
if (shader->key.opt.vs_as_prim_discard_cs) {
for (i = 0; i < 4; i++)
- returns[num_returns++] = ctx->f32; /* VGPRs */
+ returns[num_returns++] = ctx->ac.f32; /* VGPRs */
}
break;
* placed after the user SGPRs.
*/
for (i = 0; i < GFX6_TCS_NUM_USER_SGPR + 2; i++)
- returns[num_returns++] = ctx->i32; /* SGPRs */
+ returns[num_returns++] = ctx->ac.i32; /* SGPRs */
for (i = 0; i < 11; i++)
- returns[num_returns++] = ctx->f32; /* VGPRs */
+ returns[num_returns++] = ctx->ac.f32; /* VGPRs */
break;
case SI_SHADER_MERGED_VERTEX_TESSCTRL:
ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, &ctx->tcs_offchip_layout);
ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, &ctx->tcs_out_lds_offsets);
ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, &ctx->tcs_out_lds_layout);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_CONST_DESC_PTR, &ctx->vertex_buffers);
+ declare_vb_descriptor_input_sgprs(ctx);
/* VGPRs (first TCS, then VS) */
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &ctx->args.tcs_patch_id);
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &ctx->args.tcs_rel_ids);
if (ctx->type == PIPE_SHADER_VERTEX) {
- declare_vs_input_vgprs(ctx, &num_prolog_vgprs);
+ declare_vs_input_vgprs(ctx, &num_prolog_vgprs, ngg_cull_shader);
/* LS return values are inputs to the TCS main shader part. */
for (i = 0; i < 8 + GFX9_TCS_NUM_USER_SGPR; i++)
- returns[num_returns++] = ctx->i32; /* SGPRs */
+ returns[num_returns++] = ctx->ac.i32; /* SGPRs */
for (i = 0; i < 2; i++)
- returns[num_returns++] = ctx->f32; /* VGPRs */
+ returns[num_returns++] = ctx->ac.f32; /* VGPRs */
} else {
/* TCS return values are inputs to the TCS epilog.
*
* should be passed to the epilog.
*/
for (i = 0; i <= 8 + GFX9_SGPR_TCS_OUT_LAYOUT; i++)
- returns[num_returns++] = ctx->i32; /* SGPRs */
+ returns[num_returns++] = ctx->ac.i32; /* SGPRs */
for (i = 0; i < 11; i++)
- returns[num_returns++] = ctx->f32; /* VGPRs */
+ returns[num_returns++] = ctx->ac.f32; /* VGPRs */
}
break;
ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, &ctx->merged_wave_info);
ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, &ctx->tcs_offchip_offset);
ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, &ctx->merged_scratch_offset);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL); /* unused (SPI_SHADER_PGM_LO/HI_GS << 8) */
+ ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_CONST_DESC_PTR,
+ &ctx->small_prim_cull_info); /* SPI_SHADER_PGM_LO_GS << 8 */
ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL); /* unused (SPI_SHADER_PGM_LO/HI_GS >> 24) */
declare_global_desc_pointers(ctx);
/* Declare as many input SGPRs as the VS has. */
}
- if (ctx->type == PIPE_SHADER_VERTEX) {
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_CONST_DESC_PTR,
- &ctx->vertex_buffers);
- }
+ if (ctx->type == PIPE_SHADER_VERTEX)
+ declare_vb_descriptor_input_sgprs(ctx);
/* VGPRs (first GS, then VS/TES) */
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &ctx->gs_vtx01_offset);
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &ctx->gs_vtx45_offset);
if (ctx->type == PIPE_SHADER_VERTEX) {
- declare_vs_input_vgprs(ctx, &num_prolog_vgprs);
+ declare_vs_input_vgprs(ctx, &num_prolog_vgprs, ngg_cull_shader);
} else if (ctx->type == PIPE_SHADER_TESS_EVAL) {
- declare_tes_input_vgprs(ctx);
+ declare_tes_input_vgprs(ctx, ngg_cull_shader);
}
- if (ctx->shader->key.as_es &&
+ if ((ctx->shader->key.as_es || ngg_cull_shader) &&
(ctx->type == PIPE_SHADER_VERTEX ||
ctx->type == PIPE_SHADER_TESS_EVAL)) {
- unsigned num_user_sgprs;
+ unsigned num_user_sgprs, num_vgprs;
- if (ctx->type == PIPE_SHADER_VERTEX)
- num_user_sgprs = GFX9_VSGS_NUM_USER_SGPR;
- else
+ if (ctx->type == PIPE_SHADER_VERTEX) {
+ /* For the NGG cull shader, add 1 SGPR to hold
+ * the vertex buffer pointer.
+ */
+ num_user_sgprs = GFX9_VSGS_NUM_USER_SGPR + ngg_cull_shader;
+
+ if (ngg_cull_shader && shader->selector->num_vbos_in_user_sgprs) {
+ assert(num_user_sgprs <= 8 + SI_SGPR_VS_VB_DESCRIPTOR_FIRST);
+ num_user_sgprs = SI_SGPR_VS_VB_DESCRIPTOR_FIRST +
+ shader->selector->num_vbos_in_user_sgprs * 4;
+ }
+ } else {
num_user_sgprs = GFX9_TESGS_NUM_USER_SGPR;
+ }
+
+ /* The NGG cull shader has to return all 9 VGPRs + the old thread ID.
+ *
+ * The normal merged ESGS shader only has to return the 5 VGPRs
+ * for the GS stage.
+ */
+ num_vgprs = ngg_cull_shader ? 10 : 5;
/* ES return values are inputs to GS. */
for (i = 0; i < 8 + num_user_sgprs; i++)
- returns[num_returns++] = ctx->i32; /* SGPRs */
- for (i = 0; i < 5; i++)
- returns[num_returns++] = ctx->f32; /* VGPRs */
+ returns[num_returns++] = ctx->ac.i32; /* SGPRs */
+ for (i = 0; i < num_vgprs; i++)
+ returns[num_returns++] = ctx->ac.f32; /* VGPRs */
}
break;
}
/* VGPRs */
- declare_tes_input_vgprs(ctx);
+ declare_tes_input_vgprs(ctx, ngg_cull_shader);
break;
case PIPE_SHADER_GEOMETRY:
case PIPE_SHADER_FRAGMENT:
declare_global_desc_pointers(ctx);
declare_per_stage_desc_pointers(ctx, true);
- add_arg_checked(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL,
+ si_add_arg_checked(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL,
SI_PARAM_ALPHA_REF);
- add_arg_checked(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
+ si_add_arg_checked(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
&ctx->args.prim_mask, SI_PARAM_PRIM_MASK);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT, &ctx->args.persp_sample,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT, &ctx->args.persp_sample,
SI_PARAM_PERSP_SAMPLE);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT,
&ctx->args.persp_center, SI_PARAM_PERSP_CENTER);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT,
&ctx->args.persp_centroid, SI_PARAM_PERSP_CENTROID);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 3, AC_ARG_INT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 3, AC_ARG_INT,
NULL, SI_PARAM_PERSP_PULL_MODEL);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT,
&ctx->args.linear_sample, SI_PARAM_LINEAR_SAMPLE);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT,
&ctx->args.linear_center, SI_PARAM_LINEAR_CENTER);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 2, AC_ARG_INT,
&ctx->args.linear_centroid, SI_PARAM_LINEAR_CENTROID);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 3, AC_ARG_FLOAT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 3, AC_ARG_FLOAT,
NULL, SI_PARAM_LINE_STIPPLE_TEX);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT,
&ctx->args.frag_pos[0], SI_PARAM_POS_X_FLOAT);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT,
&ctx->args.frag_pos[1], SI_PARAM_POS_Y_FLOAT);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT,
&ctx->args.frag_pos[2], SI_PARAM_POS_Z_FLOAT);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT,
&ctx->args.frag_pos[3], SI_PARAM_POS_W_FLOAT);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
+ shader->info.face_vgpr_index = ctx->args.num_vgprs_used;
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
&ctx->args.front_face, SI_PARAM_FRONT_FACE);
- shader->info.face_vgpr_index = 20;
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
+ shader->info.ancillary_vgpr_index = ctx->args.num_vgprs_used;
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
&ctx->args.ancillary, SI_PARAM_ANCILLARY);
- shader->info.ancillary_vgpr_index = 21;
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT,
&ctx->args.sample_coverage, SI_PARAM_SAMPLE_COVERAGE);
- add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
+ si_add_arg_checked(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
&ctx->pos_fixed_pt, SI_PARAM_POS_FIXED_PT);
/* Color inputs from the prolog. */
PS_EPILOG_SAMPLEMASK_MIN_LOC + 1);
for (i = 0; i < num_return_sgprs; i++)
- returns[i] = ctx->i32;
+ returns[i] = ctx->ac.i32;
for (; i < num_returns; i++)
- returns[i] = ctx->f32;
+ returns[i] = ctx->ac.f32;
break;
case PIPE_SHADER_COMPUTE:
return;
}
- si_create_function(ctx, "main", returns, num_returns,
- si_get_max_workgroup_size(shader));
+ si_llvm_create_func(ctx, ngg_cull_shader ? "ngg_cull_main" : "main",
+ returns, num_returns, si_get_max_workgroup_size(shader));
/* Reserve register locations for VGPR inputs the PS prolog may need. */
if (ctx->type == PIPE_SHADER_FRAGMENT && !ctx->shader->is_monolithic) {
* own LDS-based lowering).
*/
ctx->ac.lds = LLVMAddGlobalInAddressSpace(
- ctx->ac.module, LLVMArrayType(ctx->i32, 0),
+ ctx->ac.module, LLVMArrayType(ctx->ac.i32, 0),
"__lds_end", AC_ADDR_SPACE_LDS);
LLVMSetAlignment(ctx->ac.lds, 256);
} else {
}
}
-/* Ensure that the esgs ring is declared.
- *
- * We declare it with 64KB alignment as a hint that the
- * pointer value will always be 0.
- */
-static void declare_esgs_ring(struct si_shader_context *ctx)
-{
- if (ctx->esgs_ring)
- return;
-
- assert(!LLVMGetNamedGlobal(ctx->ac.module, "esgs_ring"));
-
- ctx->esgs_ring = LLVMAddGlobalInAddressSpace(
- ctx->ac.module, LLVMArrayType(ctx->i32, 0),
- "esgs_ring",
- AC_ADDR_SPACE_LDS);
- LLVMSetLinkage(ctx->esgs_ring, LLVMExternalLinkage);
- LLVMSetAlignment(ctx->esgs_ring, 64 * 1024);
-}
-
-/**
- * Load ESGS and GSVS ring buffer resource descriptors and save the variables
- * for later use.
- */
-static void preload_ring_buffers(struct si_shader_context *ctx)
-{
- LLVMBuilderRef builder = ctx->ac.builder;
-
- LLVMValueRef buf_ptr = ac_get_arg(&ctx->ac, ctx->rw_buffers);
-
- if (ctx->shader->key.as_es || ctx->type == PIPE_SHADER_GEOMETRY) {
- if (ctx->screen->info.chip_class <= GFX8) {
- unsigned ring =
- ctx->type == PIPE_SHADER_GEOMETRY ? SI_GS_RING_ESGS
- : SI_ES_RING_ESGS;
- LLVMValueRef offset = LLVMConstInt(ctx->i32, ring, 0);
-
- ctx->esgs_ring =
- ac_build_load_to_sgpr(&ctx->ac, buf_ptr, offset);
- } else {
- if (USE_LDS_SYMBOLS && LLVM_VERSION_MAJOR >= 9) {
- /* Declare the ESGS ring as an explicit LDS symbol. */
- declare_esgs_ring(ctx);
- } else {
- ac_declare_lds_as_pointer(&ctx->ac);
- ctx->esgs_ring = ctx->ac.lds;
- }
- }
- }
-
- if (ctx->shader->is_gs_copy_shader) {
- LLVMValueRef offset = LLVMConstInt(ctx->i32, SI_RING_GSVS, 0);
-
- ctx->gsvs_ring[0] =
- ac_build_load_to_sgpr(&ctx->ac, buf_ptr, offset);
- } else if (ctx->type == PIPE_SHADER_GEOMETRY) {
- const struct si_shader_selector *sel = ctx->shader->selector;
- LLVMValueRef offset = LLVMConstInt(ctx->i32, SI_RING_GSVS, 0);
- LLVMValueRef base_ring;
-
- base_ring = ac_build_load_to_sgpr(&ctx->ac, buf_ptr, offset);
-
- /* The conceptual layout of the GSVS ring is
- * v0c0 .. vLv0 v0c1 .. vLc1 ..
- * but the real memory layout is swizzled across
- * threads:
- * t0v0c0 .. t15v0c0 t0v1c0 .. t15v1c0 ... t15vLcL
- * t16v0c0 ..
- * Override the buffer descriptor accordingly.
- */
- LLVMTypeRef v2i64 = LLVMVectorType(ctx->i64, 2);
- uint64_t stream_offset = 0;
-
- for (unsigned stream = 0; stream < 4; ++stream) {
- unsigned num_components;
- unsigned stride;
- unsigned num_records;
- LLVMValueRef ring, tmp;
-
- num_components = sel->info.num_stream_output_components[stream];
- if (!num_components)
- continue;
-
- stride = 4 * num_components * sel->gs_max_out_vertices;
-
- /* Limit on the stride field for <= GFX7. */
- assert(stride < (1 << 14));
-
- num_records = ctx->ac.wave_size;
-
- ring = LLVMBuildBitCast(builder, base_ring, v2i64, "");
- tmp = LLVMBuildExtractElement(builder, ring, ctx->i32_0, "");
- tmp = LLVMBuildAdd(builder, tmp,
- LLVMConstInt(ctx->i64,
- stream_offset, 0), "");
- stream_offset += stride * ctx->ac.wave_size;
-
- ring = LLVMBuildInsertElement(builder, ring, tmp, ctx->i32_0, "");
- ring = LLVMBuildBitCast(builder, ring, ctx->v4i32, "");
- tmp = LLVMBuildExtractElement(builder, ring, ctx->i32_1, "");
- tmp = LLVMBuildOr(builder, tmp,
- LLVMConstInt(ctx->i32,
- S_008F04_STRIDE(stride) |
- S_008F04_SWIZZLE_ENABLE(1), 0), "");
- ring = LLVMBuildInsertElement(builder, ring, tmp, ctx->i32_1, "");
- ring = LLVMBuildInsertElement(builder, ring,
- LLVMConstInt(ctx->i32, num_records, 0),
- LLVMConstInt(ctx->i32, 2, 0), "");
-
- uint32_t rsrc3 =
- S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X) |
- S_008F0C_DST_SEL_Y(V_008F0C_SQ_SEL_Y) |
- S_008F0C_DST_SEL_Z(V_008F0C_SQ_SEL_Z) |
- S_008F0C_DST_SEL_W(V_008F0C_SQ_SEL_W) |
- S_008F0C_INDEX_STRIDE(1) | /* index_stride = 16 (elements) */
- S_008F0C_ADD_TID_ENABLE(1);
-
- if (ctx->ac.chip_class >= GFX10) {
- rsrc3 |= S_008F0C_FORMAT(V_008F0C_IMG_FORMAT_32_FLOAT) |
- S_008F0C_OOB_SELECT(2) |
- S_008F0C_RESOURCE_LEVEL(1);
- } else {
- rsrc3 |= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT) |
- S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32) |
- S_008F0C_ELEMENT_SIZE(1); /* element_size = 4 (bytes) */
- }
-
- ring = LLVMBuildInsertElement(builder, ring,
- LLVMConstInt(ctx->i32, rsrc3, false),
- LLVMConstInt(ctx->i32, 3, 0), "");
-
- ctx->gsvs_ring[stream] = ring;
- }
- } else if (ctx->type == PIPE_SHADER_TESS_EVAL) {
- ctx->tess_offchip_ring = get_tess_ring_descriptor(ctx, TESS_OFFCHIP_RING_TES);
- }
-}
-
-static void si_llvm_emit_polygon_stipple(struct si_shader_context *ctx,
- LLVMValueRef param_rw_buffers,
- struct ac_arg param_pos_fixed_pt)
-{
- LLVMBuilderRef builder = ctx->ac.builder;
- LLVMValueRef slot, desc, offset, row, bit, address[2];
-
- /* Use the fixed-point gl_FragCoord input.
- * Since the stipple pattern is 32x32 and it repeats, just get 5 bits
- * per coordinate to get the repeating effect.
- */
- address[0] = si_unpack_param(ctx, param_pos_fixed_pt, 0, 5);
- address[1] = si_unpack_param(ctx, param_pos_fixed_pt, 16, 5);
-
- /* Load the buffer descriptor. */
- slot = LLVMConstInt(ctx->i32, SI_PS_CONST_POLY_STIPPLE, 0);
- desc = ac_build_load_to_sgpr(&ctx->ac, param_rw_buffers, slot);
-
- /* The stipple pattern is 32x32, each row has 32 bits. */
- offset = LLVMBuildMul(builder, address[1],
- LLVMConstInt(ctx->i32, 4, 0), "");
- row = buffer_load_const(ctx, desc, offset);
- row = ac_to_integer(&ctx->ac, row);
- bit = LLVMBuildLShr(builder, row, address[0], "");
- bit = LLVMBuildTrunc(builder, bit, ctx->i1, "");
- ac_build_kill_if_false(&ctx->ac, bit);
-}
-
/* For the UMR disassembler. */
#define DEBUGGER_END_OF_CODE_MARKER 0xbf9f0000 /* invalid instruction */
#define DEBUGGER_NUM_MARKERS 5
enum pipe_shader_type shader_type = shader->selector->type;
if (!check_debug_option ||
- si_can_dump_shader(sscreen, shader_type))
- si_dump_shader_key(shader, file);
-
- if (!check_debug_option && shader->binary.llvm_ir_string) {
- if (shader->previous_stage &&
- shader->previous_stage->binary.llvm_ir_string) {
- fprintf(file, "\n%s - previous stage - LLVM IR:\n\n",
- si_get_shader_name(shader));
- fprintf(file, "%s\n", shader->previous_stage->binary.llvm_ir_string);
- }
-
- fprintf(file, "\n%s - main shader part - LLVM IR:\n\n",
- si_get_shader_name(shader));
- fprintf(file, "%s\n", shader->binary.llvm_ir_string);
- }
-
- if (!check_debug_option ||
- (si_can_dump_shader(sscreen, shader_type) &&
- !(sscreen->debug_flags & DBG(NO_ASM)))) {
- unsigned wave_size = si_get_shader_wave_size(shader);
-
- fprintf(file, "\n%s:\n", si_get_shader_name(shader));
-
- if (shader->prolog)
- si_shader_dump_disassembly(sscreen, &shader->prolog->binary,
- shader_type, wave_size, debug, "prolog", file);
- if (shader->previous_stage)
- si_shader_dump_disassembly(sscreen, &shader->previous_stage->binary,
- shader_type, wave_size, debug, "previous stage", file);
- if (shader->prolog2)
- si_shader_dump_disassembly(sscreen, &shader->prolog2->binary,
- shader_type, wave_size, debug, "prolog2", file);
-
- si_shader_dump_disassembly(sscreen, &shader->binary, shader_type,
- wave_size, debug, "main", file);
-
- if (shader->epilog)
- si_shader_dump_disassembly(sscreen, &shader->epilog->binary,
- shader_type, wave_size, debug, "epilog", file);
- fprintf(file, "\n");
- }
-
- si_shader_dump_stats(sscreen, shader, file, check_debug_option);
-}
-
-static int si_compile_llvm(struct si_screen *sscreen,
- struct si_shader_binary *binary,
- struct ac_shader_config *conf,
- struct ac_llvm_compiler *compiler,
- LLVMModuleRef mod,
- struct pipe_debug_callback *debug,
- enum pipe_shader_type shader_type,
- unsigned wave_size,
- const char *name,
- bool less_optimized)
-{
- unsigned count = p_atomic_inc_return(&sscreen->num_compilations);
-
- if (si_can_dump_shader(sscreen, shader_type)) {
- fprintf(stderr, "radeonsi: Compiling shader %d\n", count);
-
- if (!(sscreen->debug_flags & (DBG(NO_IR) | DBG(PREOPT_IR)))) {
- fprintf(stderr, "%s LLVM IR:\n\n", name);
- ac_dump_module(mod);
- fprintf(stderr, "\n");
- }
- }
-
- if (sscreen->record_llvm_ir) {
- char *ir = LLVMPrintModuleToString(mod);
- binary->llvm_ir_string = strdup(ir);
- LLVMDisposeMessage(ir);
- }
-
- if (!si_replace_shader(count, binary)) {
- unsigned r = si_llvm_compile(mod, binary, compiler, debug,
- less_optimized, wave_size);
- if (r)
- return r;
- }
-
- struct ac_rtld_binary rtld;
- if (!ac_rtld_open(&rtld, (struct ac_rtld_open_info){
- .info = &sscreen->info,
- .shader_type = tgsi_processor_to_shader_stage(shader_type),
- .wave_size = wave_size,
- .num_parts = 1,
- .elf_ptrs = &binary->elf_buffer,
- .elf_sizes = &binary->elf_size }))
- return -1;
-
- bool ok = ac_rtld_read_config(&rtld, conf);
- ac_rtld_close(&rtld);
- if (!ok)
- return -1;
-
- /* Enable 64-bit and 16-bit denormals, because there is no performance
- * cost.
- *
- * If denormals are enabled, all floating-point output modifiers are
- * ignored.
- *
- * Don't enable denormals for 32-bit floats, because:
- * - Floating-point output modifiers would be ignored by the hw.
- * - Some opcodes don't support denormals, such as v_mad_f32. We would
- * have to stop using those.
- * - GFX6 & GFX7 would be very slow.
- */
- conf->float_mode |= V_00B028_FP_64_DENORMS;
-
- return 0;
-}
-
-static void si_llvm_build_ret(struct si_shader_context *ctx, LLVMValueRef ret)
-{
- if (LLVMGetTypeKind(LLVMTypeOf(ret)) == LLVMVoidTypeKind)
- LLVMBuildRetVoid(ctx->ac.builder);
- else
- LLVMBuildRet(ctx->ac.builder, ret);
-}
-
-/* Generate code for the hardware VS shader stage to go with a geometry shader */
-struct si_shader *
-si_generate_gs_copy_shader(struct si_screen *sscreen,
- struct ac_llvm_compiler *compiler,
- struct si_shader_selector *gs_selector,
- struct pipe_debug_callback *debug)
-{
- struct si_shader_context ctx;
- struct si_shader *shader;
- LLVMBuilderRef builder;
- struct si_shader_output_values outputs[SI_MAX_VS_OUTPUTS];
- struct tgsi_shader_info *gsinfo = &gs_selector->info;
- int i;
-
-
- shader = CALLOC_STRUCT(si_shader);
- if (!shader)
- return NULL;
-
- /* We can leave the fence as permanently signaled because the GS copy
- * shader only becomes visible globally after it has been compiled. */
- util_queue_fence_init(&shader->ready);
-
- shader->selector = gs_selector;
- shader->is_gs_copy_shader = true;
-
- si_init_shader_ctx(&ctx, sscreen, compiler,
- si_get_wave_size(sscreen, PIPE_SHADER_VERTEX, false, false),
- false);
- ctx.shader = shader;
- ctx.type = PIPE_SHADER_VERTEX;
-
- builder = ctx.ac.builder;
-
- create_function(&ctx);
- preload_ring_buffers(&ctx);
-
- LLVMValueRef voffset =
- LLVMBuildMul(ctx.ac.builder, ctx.abi.vertex_id,
- LLVMConstInt(ctx.i32, 4, 0), "");
-
- /* Fetch the vertex stream ID.*/
- LLVMValueRef stream_id;
-
- if (!sscreen->use_ngg_streamout && gs_selector->so.num_outputs)
- stream_id = si_unpack_param(&ctx, ctx.streamout_config, 24, 2);
- else
- stream_id = ctx.i32_0;
-
- /* Fill in output information. */
- for (i = 0; i < gsinfo->num_outputs; ++i) {
- outputs[i].semantic_name = gsinfo->output_semantic_name[i];
- outputs[i].semantic_index = gsinfo->output_semantic_index[i];
-
- for (int chan = 0; chan < 4; chan++) {
- outputs[i].vertex_stream[chan] =
- (gsinfo->output_streams[i] >> (2 * chan)) & 3;
- }
- }
-
- LLVMBasicBlockRef end_bb;
- LLVMValueRef switch_inst;
-
- end_bb = LLVMAppendBasicBlockInContext(ctx.ac.context, ctx.main_fn, "end");
- switch_inst = LLVMBuildSwitch(builder, stream_id, end_bb, 4);
-
- for (int stream = 0; stream < 4; stream++) {
- LLVMBasicBlockRef bb;
- unsigned offset;
-
- if (!gsinfo->num_stream_output_components[stream])
- continue;
-
- if (stream > 0 && !gs_selector->so.num_outputs)
- continue;
-
- bb = LLVMInsertBasicBlockInContext(ctx.ac.context, end_bb, "out");
- LLVMAddCase(switch_inst, LLVMConstInt(ctx.i32, stream, 0), bb);
- LLVMPositionBuilderAtEnd(builder, bb);
-
- /* Fetch vertex data from GSVS ring */
- offset = 0;
- for (i = 0; i < gsinfo->num_outputs; ++i) {
- for (unsigned chan = 0; chan < 4; chan++) {
- if (!(gsinfo->output_usagemask[i] & (1 << chan)) ||
- outputs[i].vertex_stream[chan] != stream) {
- outputs[i].values[chan] = LLVMGetUndef(ctx.f32);
- continue;
- }
-
- LLVMValueRef soffset = LLVMConstInt(ctx.i32,
- offset * gs_selector->gs_max_out_vertices * 16 * 4, 0);
- offset++;
-
- outputs[i].values[chan] =
- ac_build_buffer_load(&ctx.ac,
- ctx.gsvs_ring[0], 1,
- ctx.i32_0, voffset,
- soffset, 0, ac_glc | ac_slc,
- true, false);
- }
- }
+ si_can_dump_shader(sscreen, shader_type))
+ si_dump_shader_key(shader, file);
- /* Streamout and exports. */
- if (!sscreen->use_ngg_streamout && gs_selector->so.num_outputs) {
- si_llvm_emit_streamout(&ctx, outputs,
- gsinfo->num_outputs,
- stream);
+ if (!check_debug_option && shader->binary.llvm_ir_string) {
+ if (shader->previous_stage &&
+ shader->previous_stage->binary.llvm_ir_string) {
+ fprintf(file, "\n%s - previous stage - LLVM IR:\n\n",
+ si_get_shader_name(shader));
+ fprintf(file, "%s\n", shader->previous_stage->binary.llvm_ir_string);
}
- if (stream == 0)
- si_llvm_export_vs(&ctx, outputs, gsinfo->num_outputs);
-
- LLVMBuildBr(builder, end_bb);
+ fprintf(file, "\n%s - main shader part - LLVM IR:\n\n",
+ si_get_shader_name(shader));
+ fprintf(file, "%s\n", shader->binary.llvm_ir_string);
}
- LLVMPositionBuilderAtEnd(builder, end_bb);
-
- LLVMBuildRetVoid(ctx.ac.builder);
+ if (!check_debug_option ||
+ (si_can_dump_shader(sscreen, shader_type) &&
+ !(sscreen->debug_flags & DBG(NO_ASM)))) {
+ unsigned wave_size = si_get_shader_wave_size(shader);
- ctx.type = PIPE_SHADER_GEOMETRY; /* override for shader dumping */
- si_llvm_optimize_module(&ctx);
+ fprintf(file, "\n%s:\n", si_get_shader_name(shader));
- bool ok = false;
- if (si_compile_llvm(sscreen, &ctx.shader->binary,
- &ctx.shader->config, ctx.compiler,
- ctx.ac.module,
- debug, PIPE_SHADER_GEOMETRY, ctx.ac.wave_size,
- "GS Copy Shader", false) == 0) {
- if (si_can_dump_shader(sscreen, PIPE_SHADER_GEOMETRY))
- fprintf(stderr, "GS Copy Shader:\n");
- si_shader_dump(sscreen, ctx.shader, debug, stderr, true);
-
- if (!ctx.shader->config.scratch_bytes_per_wave)
- ok = si_shader_binary_upload(sscreen, ctx.shader, 0);
- else
- ok = true;
- }
+ if (shader->prolog)
+ si_shader_dump_disassembly(sscreen, &shader->prolog->binary,
+ shader_type, wave_size, debug, "prolog", file);
+ if (shader->previous_stage)
+ si_shader_dump_disassembly(sscreen, &shader->previous_stage->binary,
+ shader_type, wave_size, debug, "previous stage", file);
+ if (shader->prolog2)
+ si_shader_dump_disassembly(sscreen, &shader->prolog2->binary,
+ shader_type, wave_size, debug, "prolog2", file);
- si_llvm_dispose(&ctx);
+ si_shader_dump_disassembly(sscreen, &shader->binary, shader_type,
+ wave_size, debug, "main", file);
- if (!ok) {
- FREE(shader);
- shader = NULL;
- } else {
- si_fix_resource_usage(sscreen, shader);
+ if (shader->epilog)
+ si_shader_dump_disassembly(sscreen, &shader->epilog->binary,
+ shader_type, wave_size, debug, "epilog", file);
+ fprintf(file, "\n");
}
- return shader;
+
+ si_shader_dump_stats(sscreen, shader, file, check_debug_option);
}
static void si_dump_shader_key_vs(const struct si_shader_key *key,
!key->as_es && !key->as_ls) {
fprintf(f, " opt.kill_outputs = 0x%"PRIx64"\n", key->opt.kill_outputs);
fprintf(f, " opt.clip_disable = %u\n", key->opt.clip_disable);
+ if (shader_type != PIPE_SHADER_GEOMETRY)
+ fprintf(f, " opt.ngg_culling = 0x%x\n", key->opt.ngg_culling);
}
}
-static void si_init_shader_ctx(struct si_shader_context *ctx,
- struct si_screen *sscreen,
- struct ac_llvm_compiler *compiler,
- unsigned wave_size,
- bool nir)
-{
- struct lp_build_tgsi_context *bld_base;
-
- si_llvm_context_init(ctx, sscreen, compiler, wave_size,
- nir ? 64 : wave_size);
-
- bld_base = &ctx->bld_base;
- bld_base->emit_fetch_funcs[TGSI_FILE_CONSTANT] = fetch_constant;
-
- bld_base->op_actions[TGSI_OPCODE_INTERP_CENTROID].emit = build_interp_intrinsic;
- bld_base->op_actions[TGSI_OPCODE_INTERP_SAMPLE].emit = build_interp_intrinsic;
- bld_base->op_actions[TGSI_OPCODE_INTERP_OFFSET].emit = build_interp_intrinsic;
-
- bld_base->op_actions[TGSI_OPCODE_MEMBAR].emit = membar_emit;
-
- bld_base->op_actions[TGSI_OPCODE_CLOCK].emit = clock_emit;
-
- bld_base->op_actions[TGSI_OPCODE_DDX].emit = si_llvm_emit_ddxy;
- bld_base->op_actions[TGSI_OPCODE_DDY].emit = si_llvm_emit_ddxy;
- bld_base->op_actions[TGSI_OPCODE_DDX_FINE].emit = si_llvm_emit_ddxy;
- bld_base->op_actions[TGSI_OPCODE_DDY_FINE].emit = si_llvm_emit_ddxy;
-
- bld_base->op_actions[TGSI_OPCODE_VOTE_ALL].emit = vote_all_emit;
- bld_base->op_actions[TGSI_OPCODE_VOTE_ANY].emit = vote_any_emit;
- bld_base->op_actions[TGSI_OPCODE_VOTE_EQ].emit = vote_eq_emit;
- bld_base->op_actions[TGSI_OPCODE_BALLOT].emit = ballot_emit;
- bld_base->op_actions[TGSI_OPCODE_READ_FIRST].intr_name = "llvm.amdgcn.readfirstlane";
- bld_base->op_actions[TGSI_OPCODE_READ_FIRST].emit = read_lane_emit;
- bld_base->op_actions[TGSI_OPCODE_READ_INVOC].intr_name = "llvm.amdgcn.readlane";
- bld_base->op_actions[TGSI_OPCODE_READ_INVOC].emit = read_lane_emit;
-
- bld_base->op_actions[TGSI_OPCODE_EMIT].emit = si_tgsi_emit_vertex;
- bld_base->op_actions[TGSI_OPCODE_ENDPRIM].emit = si_tgsi_emit_primitive;
- bld_base->op_actions[TGSI_OPCODE_BARRIER].emit = si_llvm_emit_barrier;
-}
-
static void si_optimize_vs_outputs(struct si_shader_context *ctx)
{
struct si_shader *shader = ctx->shader;
- struct tgsi_shader_info *info = &shader->selector->info;
+ struct si_shader_info *info = &shader->selector->info;
if ((ctx->type != PIPE_SHADER_VERTEX &&
ctx->type != PIPE_SHADER_TESS_EVAL) ||
{
LLVMValueRef args[] = {
ac_get_arg(&ctx->ac, param),
- LLVMConstInt(ctx->i32, bitoffset, 0),
+ LLVMConstInt(ctx->ac.i32, bitoffset, 0),
};
ac_build_intrinsic(&ctx->ac,
"llvm.amdgcn.init.exec.from.input",
- ctx->voidt, args, 2, AC_FUNC_ATTR_CONVERGENT);
+ ctx->ac.voidt, args, 2, AC_FUNC_ATTR_CONVERGENT);
}
static bool si_vs_needs_prolog(const struct si_shader_selector *sel,
- const struct si_vs_prolog_bits *key)
+ const struct si_vs_prolog_bits *prolog_key,
+ const struct si_shader_key *key,
+ bool ngg_cull_shader)
{
/* VGPR initialization fixup for Vega10 and Raven is always done in the
* VS prolog. */
- return sel->vs_needs_prolog || key->ls_vgpr_fix;
+ return sel->vs_needs_prolog ||
+ prolog_key->ls_vgpr_fix ||
+ prolog_key->unpack_instance_id_from_vertex_id ||
+ (ngg_cull_shader && key->opt.ngg_culling & SI_NGG_CULL_GS_FAST_LAUNCH_ALL);
}
-static bool si_compile_tgsi_main(struct si_shader_context *ctx,
- struct nir_shader *nir, bool free_nir)
+static bool si_build_main_function(struct si_shader_context *ctx,
+ struct nir_shader *nir, bool free_nir,
+ bool ngg_cull_shader)
{
struct si_shader *shader = ctx->shader;
struct si_shader_selector *sel = shader->selector;
- struct lp_build_tgsi_context *bld_base = &ctx->bld_base;
- // TODO clean all this up!
+ si_llvm_init_resource_callbacks(ctx);
+
switch (ctx->type) {
case PIPE_SHADER_VERTEX:
- ctx->load_input = declare_input_vs;
if (shader->key.as_ls)
ctx->abi.emit_outputs = si_llvm_emit_ls_epilogue;
else if (shader->key.as_es)
ctx->abi.emit_outputs = si_llvm_emit_es_epilogue;
else if (shader->key.opt.vs_as_prim_discard_cs)
ctx->abi.emit_outputs = si_llvm_emit_prim_discard_cs_epilogue;
+ else if (ngg_cull_shader)
+ ctx->abi.emit_outputs = gfx10_emit_ngg_culling_epilogue_4x_wave32;
else if (shader->key.as_ngg)
ctx->abi.emit_outputs = gfx10_emit_ngg_epilogue;
else
ctx->abi.emit_outputs = si_llvm_emit_vs_epilogue;
- bld_base->emit_epilogue = si_tgsi_emit_epilogue;
ctx->abi.load_base_vertex = get_base_vertex;
break;
case PIPE_SHADER_TESS_CTRL:
- bld_base->emit_fetch_funcs[TGSI_FILE_INPUT] = fetch_input_tcs;
- ctx->abi.load_tess_varyings = si_nir_load_tcs_varyings;
- ctx->abi.load_tess_level = si_load_tess_level;
- bld_base->emit_fetch_funcs[TGSI_FILE_OUTPUT] = fetch_output_tcs;
- bld_base->emit_store = store_output_tcs;
- ctx->abi.store_tcs_outputs = si_nir_store_output_tcs;
- ctx->abi.emit_outputs = si_llvm_emit_tcs_epilogue;
- ctx->abi.load_patch_vertices_in = si_load_patch_vertices_in;
- bld_base->emit_epilogue = si_tgsi_emit_epilogue;
+ si_llvm_init_tcs_callbacks(ctx);
break;
case PIPE_SHADER_TESS_EVAL:
- bld_base->emit_fetch_funcs[TGSI_FILE_INPUT] = fetch_input_tes;
- ctx->abi.load_tess_varyings = si_nir_load_input_tes;
- ctx->abi.load_tess_coord = si_load_tess_coord;
- ctx->abi.load_tess_level = si_load_tess_level;
- ctx->abi.load_patch_vertices_in = si_load_patch_vertices_in;
+ si_llvm_init_tes_callbacks(ctx);
+
if (shader->key.as_es)
ctx->abi.emit_outputs = si_llvm_emit_es_epilogue;
+ else if (ngg_cull_shader)
+ ctx->abi.emit_outputs = gfx10_emit_ngg_culling_epilogue_4x_wave32;
else if (shader->key.as_ngg)
ctx->abi.emit_outputs = gfx10_emit_ngg_epilogue;
else
ctx->abi.emit_outputs = si_llvm_emit_vs_epilogue;
- bld_base->emit_epilogue = si_tgsi_emit_epilogue;
break;
case PIPE_SHADER_GEOMETRY:
- bld_base->emit_fetch_funcs[TGSI_FILE_INPUT] = fetch_input_gs;
- ctx->abi.load_inputs = si_nir_load_input_gs;
- ctx->abi.emit_vertex = si_llvm_emit_vertex;
- ctx->abi.emit_primitive = si_llvm_emit_primitive;
- ctx->abi.emit_outputs = si_llvm_emit_gs_epilogue;
- bld_base->emit_epilogue = si_tgsi_emit_gs_epilogue;
+ si_llvm_init_gs_callbacks(ctx);
break;
case PIPE_SHADER_FRAGMENT:
- ctx->load_input = declare_input_fs;
- ctx->abi.emit_outputs = si_llvm_return_fs_outputs;
- bld_base->emit_epilogue = si_tgsi_emit_epilogue;
- ctx->abi.load_sample_position = load_sample_position;
- ctx->abi.load_sample_mask_in = load_sample_mask_in;
- ctx->abi.emit_fbfetch = si_nir_emit_fbfetch;
- ctx->abi.emit_kill = si_llvm_emit_kill;
+ si_llvm_init_ps_callbacks(ctx);
break;
case PIPE_SHADER_COMPUTE:
ctx->abi.load_local_group_size = get_block_size;
return false;
}
- ctx->abi.load_ubo = load_ubo;
- ctx->abi.load_ssbo = load_ssbo;
+ si_create_function(ctx, ngg_cull_shader);
+
+ if (ctx->shader->key.as_es || ctx->type == PIPE_SHADER_GEOMETRY)
+ si_preload_esgs_ring(ctx);
- create_function(ctx);
- preload_ring_buffers(ctx);
+ if (ctx->type == PIPE_SHADER_GEOMETRY)
+ si_preload_gs_rings(ctx);
+ else if (ctx->type == PIPE_SHADER_TESS_EVAL)
+ si_llvm_preload_tes_rings(ctx);
if (ctx->type == PIPE_SHADER_TESS_CTRL &&
- sel->tcs_info.tessfactors_are_def_in_all_invocs) {
+ sel->info.tessfactors_are_def_in_all_invocs) {
for (unsigned i = 0; i < 6; i++) {
ctx->invoc0_tess_factors[i] =
- ac_build_alloca_undef(&ctx->ac, ctx->i32, "");
+ ac_build_alloca_undef(&ctx->ac, ctx->ac.i32, "");
}
}
if (ctx->type == PIPE_SHADER_GEOMETRY) {
for (unsigned i = 0; i < 4; i++) {
ctx->gs_next_vertex[i] =
- ac_build_alloca(&ctx->ac, ctx->i32, "");
+ ac_build_alloca(&ctx->ac, ctx->ac.i32, "");
}
if (shader->key.as_ngg) {
for (unsigned i = 0; i < 4; ++i) {
if (sel->so.num_outputs)
scratch_size = 44;
- LLVMTypeRef ai32 = LLVMArrayType(ctx->i32, scratch_size);
+ assert(!ctx->gs_ngg_scratch);
+ LLVMTypeRef ai32 = LLVMArrayType(ctx->ac.i32, scratch_size);
ctx->gs_ngg_scratch = LLVMAddGlobalInAddressSpace(ctx->ac.module,
ai32, "ngg_scratch", AC_ADDR_SPACE_LDS);
LLVMSetInitializer(ctx->gs_ngg_scratch, LLVMGetUndef(ai32));
LLVMSetAlignment(ctx->gs_ngg_scratch, 4);
ctx->gs_ngg_emit = LLVMAddGlobalInAddressSpace(ctx->ac.module,
- LLVMArrayType(ctx->i32, 0), "ngg_emit", AC_ADDR_SPACE_LDS);
+ LLVMArrayType(ctx->ac.i32, 0), "ngg_emit", AC_ADDR_SPACE_LDS);
LLVMSetLinkage(ctx->gs_ngg_emit, LLVMExternalLinkage);
LLVMSetAlignment(ctx->gs_ngg_emit, 4);
}
* Add an extra dword per vertex to ensure an odd stride, which
* avoids bank conflicts for SoA accesses.
*/
- declare_esgs_ring(ctx);
+ if (!gfx10_is_ngg_passthrough(shader))
+ si_llvm_declare_esgs_ring(ctx);
/* This is really only needed when streamout and / or vertex
* compaction is enabled.
*/
- LLVMTypeRef asi32 = LLVMArrayType(ctx->i32, 8);
- ctx->gs_ngg_scratch = LLVMAddGlobalInAddressSpace(ctx->ac.module,
- asi32, "ngg_scratch", AC_ADDR_SPACE_LDS);
- LLVMSetInitializer(ctx->gs_ngg_scratch, LLVMGetUndef(asi32));
- LLVMSetAlignment(ctx->gs_ngg_scratch, 4);
+ if (!ctx->gs_ngg_scratch &&
+ (sel->so.num_outputs || shader->key.opt.ngg_culling)) {
+ LLVMTypeRef asi32 = LLVMArrayType(ctx->ac.i32, 8);
+ ctx->gs_ngg_scratch = LLVMAddGlobalInAddressSpace(ctx->ac.module,
+ asi32, "ngg_scratch", AC_ADDR_SPACE_LDS);
+ LLVMSetInitializer(ctx->gs_ngg_scratch, LLVMGetUndef(asi32));
+ LLVMSetAlignment(ctx->gs_ngg_scratch, 4);
+ }
}
/* For GFX9 merged shaders:
*/
if (ctx->screen->info.chip_class >= GFX9) {
if (!shader->is_monolithic &&
- sel->info.num_instructions > 1 && /* not empty shader */
(shader->key.as_es || shader->key.as_ls) &&
(ctx->type == PIPE_SHADER_TESS_EVAL ||
(ctx->type == PIPE_SHADER_VERTEX &&
- !si_vs_needs_prolog(sel, &shader->key.part.vs.prolog)))) {
+ !si_vs_needs_prolog(sel, &shader->key.part.vs.prolog,
+ &shader->key, ngg_cull_shader)))) {
si_init_exec_from_input(ctx,
ctx->merged_wave_info, 0);
} else if (ctx->type == PIPE_SHADER_TESS_CTRL ||
ctx->type == PIPE_SHADER_GEOMETRY ||
(shader->key.as_ngg && !shader->key.as_es)) {
- LLVMValueRef num_threads;
+ LLVMValueRef thread_enabled;
bool nested_barrier;
if (!shader->is_monolithic ||
(ctx->type == PIPE_SHADER_TESS_EVAL &&
- (shader->key.as_ngg && !shader->key.as_es)))
+ shader->key.as_ngg && !shader->key.as_es &&
+ !shader->key.opt.ngg_culling))
ac_init_exec_full_mask(&ctx->ac);
+ if ((ctx->type == PIPE_SHADER_VERTEX ||
+ ctx->type == PIPE_SHADER_TESS_EVAL) &&
+ shader->key.as_ngg && !shader->key.as_es &&
+ !shader->key.opt.ngg_culling) {
+ gfx10_ngg_build_sendmsg_gs_alloc_req(ctx);
+
+ /* Build the primitive export at the beginning
+ * of the shader if possible.
+ */
+ if (gfx10_ngg_export_prim_early(shader))
+ gfx10_ngg_build_export_prim(ctx, NULL, NULL);
+ }
+
if (ctx->type == PIPE_SHADER_TESS_CTRL ||
ctx->type == PIPE_SHADER_GEOMETRY) {
if (ctx->type == PIPE_SHADER_GEOMETRY && shader->key.as_ngg) {
nested_barrier = true;
}
- /* Number of patches / primitives */
- num_threads = si_unpack_param(ctx, ctx->merged_wave_info, 8, 8);
+ thread_enabled = si_is_gs_thread(ctx);
} else {
- /* Number of vertices */
- num_threads = si_unpack_param(ctx, ctx->merged_wave_info, 0, 8);
+ thread_enabled = si_is_es_thread(ctx);
nested_barrier = false;
}
- LLVMValueRef ena =
- LLVMBuildICmp(ctx->ac.builder, LLVMIntULT,
- ac_get_thread_id(&ctx->ac), num_threads, "");
-
ctx->merged_wrap_if_entry_block = LLVMGetInsertBlock(ctx->ac.builder);
ctx->merged_wrap_if_label = 11500;
- ac_build_ifcc(&ctx->ac, ena, ctx->merged_wrap_if_label);
+ ac_build_ifcc(&ctx->ac, thread_enabled, ctx->merged_wrap_if_label);
if (nested_barrier) {
/* Execute a barrier before the second shader in
*
* This is possible in gfx9, because an empty wave
* for the second shader does not participate in
- * the epilogue. With NGG, empty waves may still
- * be required to export data (e.g. GS output vertices),
- * so we cannot let them exit early.
- *
- * If the shader is TCS and the TCS epilog is present
- * and contains a barrier, it will wait there and then
- * reach s_endpgm.
- */
- si_llvm_emit_barrier(NULL, bld_base, NULL);
- }
- }
- }
-
- if (sel->force_correct_derivs_after_kill) {
- ctx->postponed_kill = ac_build_alloca_undef(&ctx->ac, ctx->i1, "");
- /* true = don't kill. */
- LLVMBuildStore(ctx->ac.builder, ctx->i1true,
- ctx->postponed_kill);
- }
-
- if (sel->tokens) {
- if (!lp_build_tgsi_llvm(bld_base, sel->tokens)) {
- fprintf(stderr, "Failed to translate shader from TGSI to LLVM\n");
- return false;
- }
- } else {
- bool success = si_nir_build_llvm(ctx, nir);
- if (free_nir)
- ralloc_free(nir);
- if (!success) {
- fprintf(stderr, "Failed to translate shader from NIR to LLVM\n");
- return false;
- }
- }
-
- si_llvm_build_ret(ctx, ctx->return_value);
- return true;
-}
-
-/**
- * Compute the VS prolog key, which contains all the information needed to
- * build the VS prolog function, and set shader->info bits where needed.
- *
- * \param info Shader info of the vertex shader.
- * \param num_input_sgprs Number of input SGPRs for the vertex shader.
- * \param prolog_key Key of the VS prolog
- * \param shader_out The vertex shader, or the next shader if merging LS+HS or ES+GS.
- * \param key Output shader part key.
- */
-static void si_get_vs_prolog_key(const struct tgsi_shader_info *info,
- unsigned num_input_sgprs,
- const struct si_vs_prolog_bits *prolog_key,
- struct si_shader *shader_out,
- union si_shader_part_key *key)
-{
- memset(key, 0, sizeof(*key));
- key->vs_prolog.states = *prolog_key;
- key->vs_prolog.num_input_sgprs = num_input_sgprs;
- key->vs_prolog.last_input = MAX2(1, info->num_inputs) - 1;
- key->vs_prolog.as_ls = shader_out->key.as_ls;
- key->vs_prolog.as_es = shader_out->key.as_es;
- key->vs_prolog.as_ngg = shader_out->key.as_ngg;
-
- if (shader_out->selector->type == PIPE_SHADER_TESS_CTRL) {
- key->vs_prolog.as_ls = 1;
- key->vs_prolog.num_merged_next_stage_vgprs = 2;
- } else if (shader_out->selector->type == PIPE_SHADER_GEOMETRY) {
- key->vs_prolog.as_es = 1;
- key->vs_prolog.num_merged_next_stage_vgprs = 5;
- } else if (shader_out->key.as_ngg) {
- key->vs_prolog.num_merged_next_stage_vgprs = 5;
- }
-
- /* Enable loading the InstanceID VGPR. */
- uint16_t input_mask = u_bit_consecutive(0, info->num_inputs);
-
- if ((key->vs_prolog.states.instance_divisor_is_one |
- key->vs_prolog.states.instance_divisor_is_fetched) & input_mask)
- shader_out->info.uses_instanceid = true;
-}
-
-/**
- * Compute the PS prolog key, which contains all the information needed to
- * build the PS prolog function, and set related bits in shader->config.
- */
-static void si_get_ps_prolog_key(struct si_shader *shader,
- union si_shader_part_key *key,
- bool separate_prolog)
-{
- struct tgsi_shader_info *info = &shader->selector->info;
-
- memset(key, 0, sizeof(*key));
- key->ps_prolog.states = shader->key.part.ps.prolog;
- key->ps_prolog.colors_read = info->colors_read;
- key->ps_prolog.num_input_sgprs = shader->info.num_input_sgprs;
- key->ps_prolog.num_input_vgprs = shader->info.num_input_vgprs;
- key->ps_prolog.wqm = info->uses_derivatives &&
- (key->ps_prolog.colors_read ||
- key->ps_prolog.states.force_persp_sample_interp ||
- key->ps_prolog.states.force_linear_sample_interp ||
- key->ps_prolog.states.force_persp_center_interp ||
- key->ps_prolog.states.force_linear_center_interp ||
- key->ps_prolog.states.bc_optimize_for_persp ||
- key->ps_prolog.states.bc_optimize_for_linear);
- key->ps_prolog.ancillary_vgpr_index = shader->info.ancillary_vgpr_index;
-
- if (info->colors_read) {
- unsigned *color = shader->selector->color_attr_index;
-
- if (shader->key.part.ps.prolog.color_two_side) {
- /* BCOLORs are stored after the last input. */
- key->ps_prolog.num_interp_inputs = info->num_inputs;
- key->ps_prolog.face_vgpr_index = shader->info.face_vgpr_index;
- if (separate_prolog)
- shader->config.spi_ps_input_ena |= S_0286CC_FRONT_FACE_ENA(1);
- }
-
- for (unsigned i = 0; i < 2; i++) {
- unsigned interp = info->input_interpolate[color[i]];
- unsigned location = info->input_interpolate_loc[color[i]];
-
- if (!(info->colors_read & (0xf << i*4)))
- continue;
-
- key->ps_prolog.color_attr_index[i] = color[i];
-
- if (shader->key.part.ps.prolog.flatshade_colors &&
- interp == TGSI_INTERPOLATE_COLOR)
- interp = TGSI_INTERPOLATE_CONSTANT;
-
- switch (interp) {
- case TGSI_INTERPOLATE_CONSTANT:
- key->ps_prolog.color_interp_vgpr_index[i] = -1;
- break;
- case TGSI_INTERPOLATE_PERSPECTIVE:
- case TGSI_INTERPOLATE_COLOR:
- /* Force the interpolation location for colors here. */
- if (shader->key.part.ps.prolog.force_persp_sample_interp)
- location = TGSI_INTERPOLATE_LOC_SAMPLE;
- if (shader->key.part.ps.prolog.force_persp_center_interp)
- location = TGSI_INTERPOLATE_LOC_CENTER;
-
- switch (location) {
- case TGSI_INTERPOLATE_LOC_SAMPLE:
- key->ps_prolog.color_interp_vgpr_index[i] = 0;
- if (separate_prolog) {
- shader->config.spi_ps_input_ena |=
- S_0286CC_PERSP_SAMPLE_ENA(1);
- }
- break;
- case TGSI_INTERPOLATE_LOC_CENTER:
- key->ps_prolog.color_interp_vgpr_index[i] = 2;
- if (separate_prolog) {
- shader->config.spi_ps_input_ena |=
- S_0286CC_PERSP_CENTER_ENA(1);
- }
- break;
- case TGSI_INTERPOLATE_LOC_CENTROID:
- key->ps_prolog.color_interp_vgpr_index[i] = 4;
- if (separate_prolog) {
- shader->config.spi_ps_input_ena |=
- S_0286CC_PERSP_CENTROID_ENA(1);
- }
- break;
- default:
- assert(0);
- }
- break;
- case TGSI_INTERPOLATE_LINEAR:
- /* Force the interpolation location for colors here. */
- if (shader->key.part.ps.prolog.force_linear_sample_interp)
- location = TGSI_INTERPOLATE_LOC_SAMPLE;
- if (shader->key.part.ps.prolog.force_linear_center_interp)
- location = TGSI_INTERPOLATE_LOC_CENTER;
-
- /* The VGPR assignment for non-monolithic shaders
- * works because InitialPSInputAddr is set on the
- * main shader and PERSP_PULL_MODEL is never used.
- */
- switch (location) {
- case TGSI_INTERPOLATE_LOC_SAMPLE:
- key->ps_prolog.color_interp_vgpr_index[i] =
- separate_prolog ? 6 : 9;
- if (separate_prolog) {
- shader->config.spi_ps_input_ena |=
- S_0286CC_LINEAR_SAMPLE_ENA(1);
- }
- break;
- case TGSI_INTERPOLATE_LOC_CENTER:
- key->ps_prolog.color_interp_vgpr_index[i] =
- separate_prolog ? 8 : 11;
- if (separate_prolog) {
- shader->config.spi_ps_input_ena |=
- S_0286CC_LINEAR_CENTER_ENA(1);
- }
- break;
- case TGSI_INTERPOLATE_LOC_CENTROID:
- key->ps_prolog.color_interp_vgpr_index[i] =
- separate_prolog ? 10 : 13;
- if (separate_prolog) {
- shader->config.spi_ps_input_ena |=
- S_0286CC_LINEAR_CENTROID_ENA(1);
- }
- break;
- default:
- assert(0);
- }
- break;
- default:
- assert(0);
+ * the epilogue. With NGG, empty waves may still
+ * be required to export data (e.g. GS output vertices),
+ * so we cannot let them exit early.
+ *
+ * If the shader is TCS and the TCS epilog is present
+ * and contains a barrier, it will wait there and then
+ * reach s_endpgm.
+ */
+ si_llvm_emit_barrier(ctx);
}
}
}
-}
-/**
- * Check whether a PS prolog is required based on the key.
- */
-static bool si_need_ps_prolog(const union si_shader_part_key *key)
-{
- return key->ps_prolog.colors_read ||
- key->ps_prolog.states.force_persp_sample_interp ||
- key->ps_prolog.states.force_linear_sample_interp ||
- key->ps_prolog.states.force_persp_center_interp ||
- key->ps_prolog.states.force_linear_center_interp ||
- key->ps_prolog.states.bc_optimize_for_persp ||
- key->ps_prolog.states.bc_optimize_for_linear ||
- key->ps_prolog.states.poly_stipple ||
- key->ps_prolog.states.samplemask_log_ps_iter;
+ if (sel->force_correct_derivs_after_kill) {
+ ctx->postponed_kill = ac_build_alloca_undef(&ctx->ac, ctx->ac.i1, "");
+ /* true = don't kill. */
+ LLVMBuildStore(ctx->ac.builder, ctx->ac.i1true,
+ ctx->postponed_kill);
+ }
+
+ bool success = si_nir_build_llvm(ctx, nir);
+ if (free_nir)
+ ralloc_free(nir);
+ if (!success) {
+ fprintf(stderr, "Failed to translate shader from NIR to LLVM\n");
+ return false;
+ }
+
+ si_llvm_build_ret(ctx, ctx->return_value);
+ return true;
}
/**
- * Compute the PS epilog key, which contains all the information needed to
- * build the PS epilog function.
+ * Compute the VS prolog key, which contains all the information needed to
+ * build the VS prolog function, and set shader->info bits where needed.
+ *
+ * \param info Shader info of the vertex shader.
+ * \param num_input_sgprs Number of input SGPRs for the vertex shader.
+ * \param has_old_ Whether the preceding shader part is the NGG cull shader.
+ * \param prolog_key Key of the VS prolog
+ * \param shader_out The vertex shader, or the next shader if merging LS+HS or ES+GS.
+ * \param key Output shader part key.
*/
-static void si_get_ps_epilog_key(struct si_shader *shader,
+static void si_get_vs_prolog_key(const struct si_shader_info *info,
+ unsigned num_input_sgprs,
+ bool ngg_cull_shader,
+ const struct si_vs_prolog_bits *prolog_key,
+ struct si_shader *shader_out,
union si_shader_part_key *key)
{
- struct tgsi_shader_info *info = &shader->selector->info;
memset(key, 0, sizeof(*key));
- key->ps_epilog.colors_written = info->colors_written;
- key->ps_epilog.writes_z = info->writes_z;
- key->ps_epilog.writes_stencil = info->writes_stencil;
- key->ps_epilog.writes_samplemask = info->writes_samplemask;
- key->ps_epilog.states = shader->key.part.ps.epilog;
-}
-
-/**
- * Build the GS prolog function. Rotate the input vertices for triangle strips
- * with adjacency.
- */
-static void si_build_gs_prolog_function(struct si_shader_context *ctx,
- union si_shader_part_key *key)
-{
- unsigned num_sgprs, num_vgprs;
- LLVMBuilderRef builder = ctx->ac.builder;
- LLVMTypeRef returns[48];
- LLVMValueRef func, ret;
-
- memset(&ctx->args, 0, sizeof(ctx->args));
+ key->vs_prolog.states = *prolog_key;
+ key->vs_prolog.num_input_sgprs = num_input_sgprs;
+ key->vs_prolog.num_inputs = info->num_inputs;
+ key->vs_prolog.as_ls = shader_out->key.as_ls;
+ key->vs_prolog.as_es = shader_out->key.as_es;
+ key->vs_prolog.as_ngg = shader_out->key.as_ngg;
- if (ctx->screen->info.chip_class >= GFX9) {
- if (key->gs_prolog.states.gfx9_prev_is_vs)
- num_sgprs = 8 + GFX9_VSGS_NUM_USER_SGPR;
- else
- num_sgprs = 8 + GFX9_TESGS_NUM_USER_SGPR;
- num_vgprs = 5; /* ES inputs are not needed by GS */
+ if (ngg_cull_shader) {
+ key->vs_prolog.gs_fast_launch_tri_list = !!(shader_out->key.opt.ngg_culling &
+ SI_NGG_CULL_GS_FAST_LAUNCH_TRI_LIST);
+ key->vs_prolog.gs_fast_launch_tri_strip = !!(shader_out->key.opt.ngg_culling &
+ SI_NGG_CULL_GS_FAST_LAUNCH_TRI_STRIP);
} else {
- num_sgprs = GFX6_GS_NUM_USER_SGPR + 2;
- num_vgprs = 8;
- }
-
- for (unsigned i = 0; i < num_sgprs; ++i) {
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- returns[i] = ctx->i32;
- }
-
- for (unsigned i = 0; i < num_vgprs; ++i) {
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, NULL);
- returns[num_sgprs + i] = ctx->f32;
+ key->vs_prolog.has_ngg_cull_inputs = !!shader_out->key.opt.ngg_culling;
}
- /* Create the function. */
- si_create_function(ctx, "gs_prolog", returns, num_sgprs + num_vgprs,
- 0);
- func = ctx->main_fn;
-
- /* Set the full EXEC mask for the prolog, because we are only fiddling
- * with registers here. The main shader part will set the correct EXEC
- * mask.
- */
- if (ctx->screen->info.chip_class >= GFX9 && !key->gs_prolog.is_monolithic)
- ac_init_exec_full_mask(&ctx->ac);
-
- /* Copy inputs to outputs. This should be no-op, as the registers match,
- * but it will prevent the compiler from overwriting them unintentionally.
- */
- ret = ctx->return_value;
- for (unsigned i = 0; i < num_sgprs; i++) {
- LLVMValueRef p = LLVMGetParam(func, i);
- ret = LLVMBuildInsertValue(builder, ret, p, i, "");
- }
- for (unsigned i = 0; i < num_vgprs; i++) {
- LLVMValueRef p = LLVMGetParam(func, num_sgprs + i);
- p = ac_to_float(&ctx->ac, p);
- ret = LLVMBuildInsertValue(builder, ret, p, num_sgprs + i, "");
+ if (shader_out->selector->type == PIPE_SHADER_TESS_CTRL) {
+ key->vs_prolog.as_ls = 1;
+ key->vs_prolog.num_merged_next_stage_vgprs = 2;
+ } else if (shader_out->selector->type == PIPE_SHADER_GEOMETRY) {
+ key->vs_prolog.as_es = 1;
+ key->vs_prolog.num_merged_next_stage_vgprs = 5;
+ } else if (shader_out->key.as_ngg) {
+ key->vs_prolog.num_merged_next_stage_vgprs = 5;
}
- if (key->gs_prolog.states.tri_strip_adj_fix) {
- /* Remap the input vertices for every other primitive. */
- const struct ac_arg gfx6_vtx_params[6] = {
- { .used = true, .arg_index = num_sgprs },
- { .used = true, .arg_index = num_sgprs + 1 },
- { .used = true, .arg_index = num_sgprs + 3 },
- { .used = true, .arg_index = num_sgprs + 4 },
- { .used = true, .arg_index = num_sgprs + 5 },
- { .used = true, .arg_index = num_sgprs + 6 },
- };
- const struct ac_arg gfx9_vtx_params[3] = {
- { .used = true, .arg_index = num_sgprs },
- { .used = true, .arg_index = num_sgprs + 1 },
- { .used = true, .arg_index = num_sgprs + 4 },
- };
- LLVMValueRef vtx_in[6], vtx_out[6];
- LLVMValueRef prim_id, rotate;
-
- if (ctx->screen->info.chip_class >= GFX9) {
- for (unsigned i = 0; i < 3; i++) {
- vtx_in[i*2] = si_unpack_param(ctx, gfx9_vtx_params[i], 0, 16);
- vtx_in[i*2+1] = si_unpack_param(ctx, gfx9_vtx_params[i], 16, 16);
- }
- } else {
- for (unsigned i = 0; i < 6; i++)
- vtx_in[i] = ac_get_arg(&ctx->ac, gfx6_vtx_params[i]);
- }
-
- prim_id = LLVMGetParam(func, num_sgprs + 2);
- rotate = LLVMBuildTrunc(builder, prim_id, ctx->i1, "");
-
- for (unsigned i = 0; i < 6; ++i) {
- LLVMValueRef base, rotated;
- base = vtx_in[i];
- rotated = vtx_in[(i + 4) % 6];
- vtx_out[i] = LLVMBuildSelect(builder, rotate, rotated, base, "");
- }
-
- if (ctx->screen->info.chip_class >= GFX9) {
- for (unsigned i = 0; i < 3; i++) {
- LLVMValueRef hi, out;
-
- hi = LLVMBuildShl(builder, vtx_out[i*2+1],
- LLVMConstInt(ctx->i32, 16, 0), "");
- out = LLVMBuildOr(builder, vtx_out[i*2], hi, "");
- out = ac_to_float(&ctx->ac, out);
- ret = LLVMBuildInsertValue(builder, ret, out,
- gfx9_vtx_params[i].arg_index, "");
- }
- } else {
- for (unsigned i = 0; i < 6; i++) {
- LLVMValueRef out;
-
- out = ac_to_float(&ctx->ac, vtx_out[i]);
- ret = LLVMBuildInsertValue(builder, ret, out,
- gfx6_vtx_params[i].arg_index, "");
- }
- }
- }
+ /* Enable loading the InstanceID VGPR. */
+ uint16_t input_mask = u_bit_consecutive(0, info->num_inputs);
- LLVMBuildRet(builder, ret);
+ if ((key->vs_prolog.states.instance_divisor_is_one |
+ key->vs_prolog.states.instance_divisor_is_fetched) & input_mask)
+ shader_out->info.uses_instanceid = true;
}
/**
* Given a list of shader part functions, build a wrapper function that
* runs them in sequence to form a monolithic shader.
*/
-static void si_build_wrapper_function(struct si_shader_context *ctx,
- LLVMValueRef *parts,
- unsigned num_parts,
- unsigned main_part,
- unsigned next_shader_first_part)
+void si_build_wrapper_function(struct si_shader_context *ctx, LLVMValueRef *parts,
+ unsigned num_parts, unsigned main_part,
+ unsigned next_shader_first_part)
{
LLVMBuilderRef builder = ctx->ac.builder;
/* PS epilog has one arg per color component; gfx9 merged shader
- * prologs need to forward 32 user SGPRs.
+ * prologs need to forward 40 SGPRs.
*/
- LLVMValueRef initial[64], out[64];
+ LLVMValueRef initial[AC_MAX_ARGS], out[AC_MAX_ARGS];
LLVMTypeRef function_type;
unsigned num_first_params;
unsigned num_out, initial_num_out;
*/
enum ac_arg_type arg_type = AC_ARG_INT;
if (LLVMGetTypeKind(type) == LLVMPointerTypeKind) {
- arg_type = AC_ARG_CONST_PTR;
+ type = LLVMGetElementType(type);
+
+ if (LLVMGetTypeKind(type) == LLVMVectorTypeKind) {
+ if (LLVMGetVectorSize(type) == 4)
+ arg_type = AC_ARG_CONST_DESC_PTR;
+ else if (LLVMGetVectorSize(type) == 8)
+ arg_type = AC_ARG_CONST_IMAGE_PTR;
+ else
+ assert(0);
+ } else if (type == ctx->ac.f32) {
+ arg_type = AC_ARG_CONST_FLOAT_PTR;
+ } else {
+ assert(0);
+ }
}
ac_add_arg(&ctx->args, gprs < num_sgprs ? AC_ARG_SGPR : AC_ARG_VGPR,
/* Prepare the return type. */
unsigned num_returns = 0;
- LLVMTypeRef returns[32], last_func_type, return_type;
+ LLVMTypeRef returns[AC_MAX_ARGS], last_func_type, return_type;
last_func_type = LLVMGetElementType(LLVMTypeOf(parts[num_parts - 1]));
return_type = LLVMGetReturnType(last_func_type);
unreachable("unexpected type");
}
- si_create_function(ctx, "wrapper", returns, num_returns,
- si_get_max_workgroup_size(ctx->shader));
+ si_llvm_create_func(ctx, "wrapper", returns, num_returns,
+ si_get_max_workgroup_size(ctx->shader));
- if (is_merged_shader(ctx))
+ if (si_is_merged_shader(ctx))
ac_init_exec_full_mask(&ctx->ac);
/* Record the arguments of the function as if they were an output of
for (unsigned i = 0; i < ctx->args.arg_count; ++i) {
LLVMValueRef param = LLVMGetParam(ctx->main_fn, i);
LLVMTypeRef param_type = LLVMTypeOf(param);
- LLVMTypeRef out_type = ctx->args.args[i].file == AC_ARG_SGPR ? ctx->i32 : ctx->f32;
+ LLVMTypeRef out_type = ctx->args.args[i].file == AC_ARG_SGPR ? ctx->ac.i32 : ctx->ac.f32;
unsigned size = ac_get_type_size(param_type) / 4;
if (size == 1) {
if (LLVMGetTypeKind(param_type) == LLVMPointerTypeKind) {
- param = LLVMBuildPtrToInt(builder, param, ctx->i32, "");
- param_type = ctx->i32;
+ param = LLVMBuildPtrToInt(builder, param, ctx->ac.i32, "");
+ param_type = ctx->ac.i32;
}
if (param_type != out_type)
LLVMTypeRef vector_type = LLVMVectorType(out_type, size);
if (LLVMGetTypeKind(param_type) == LLVMPointerTypeKind) {
- param = LLVMBuildPtrToInt(builder, param, ctx->i64, "");
- param_type = ctx->i64;
+ param = LLVMBuildPtrToInt(builder, param, ctx->ac.i64, "");
+ param_type = ctx->ac.i64;
}
if (param_type != vector_type)
for (unsigned j = 0; j < size; ++j)
out[num_out++] = LLVMBuildExtractElement(
- builder, param, LLVMConstInt(ctx->i32, j, 0), "");
+ builder, param, LLVMConstInt(ctx->ac.i32, j, 0), "");
}
if (ctx->args.args[i].file == AC_ARG_SGPR)
/* Now chain the parts. */
LLVMValueRef ret = NULL;
for (unsigned part = 0; part < num_parts; ++part) {
- LLVMValueRef in[48];
+ LLVMValueRef in[AC_MAX_ARGS];
LLVMTypeRef ret_type;
unsigned out_idx = 0;
unsigned num_params = LLVMCountParams(parts[part]);
LLVMValueRef ena, count = initial[3];
count = LLVMBuildAnd(builder, count,
- LLVMConstInt(ctx->i32, 0x7f, 0), "");
+ LLVMConstInt(ctx->ac.i32, 0x7f, 0), "");
ena = LLVMBuildICmp(builder, LLVMIntULT,
ac_get_thread_id(&ctx->ac), count, "");
ac_build_ifcc(&ctx->ac, ena, 6506);
if (LLVMGetTypeKind(param_type) == LLVMPointerTypeKind) {
if (LLVMGetPointerAddressSpace(param_type) ==
AC_ADDR_SPACE_CONST_32BIT) {
- arg = LLVMBuildBitCast(builder, arg, ctx->i32, "");
+ arg = LLVMBuildBitCast(builder, arg, ctx->ac.i32, "");
arg = LLVMBuildIntToPtr(builder, arg, param_type, "");
} else {
- arg = LLVMBuildBitCast(builder, arg, ctx->i64, "");
+ arg = LLVMBuildBitCast(builder, arg, ctx->ac.i64, "");
arg = LLVMBuildIntToPtr(builder, arg, param_type, "");
}
} else {
assert(num_out < ARRAY_SIZE(out));
out[num_out++] = val;
- if (LLVMTypeOf(val) == ctx->i32) {
+ if (LLVMTypeOf(val) == ctx->ac.i32) {
assert(num_out_sgpr + 1 == num_out);
num_out_sgpr = num_out;
}
return NULL;
}
-int si_compile_tgsi_shader(struct si_screen *sscreen,
- struct ac_llvm_compiler *compiler,
- struct si_shader *shader,
- struct pipe_debug_callback *debug)
+/* Set the context to a certain shader. Can be called repeatedly
+ * to change the shader. */
+static void si_shader_context_set_ir(struct si_shader_context *ctx,
+ struct si_shader *shader)
+{
+ struct si_shader_selector *sel = shader->selector;
+ const struct si_shader_info *info = &sel->info;
+
+ ctx->shader = shader;
+ ctx->type = sel->type;
+
+ ctx->num_const_buffers = util_last_bit(info->const_buffers_declared);
+ ctx->num_shader_buffers = util_last_bit(info->shader_buffers_declared);
+
+ ctx->num_samplers = util_last_bit(info->samplers_declared);
+ ctx->num_images = util_last_bit(info->images_declared);
+}
+
+int si_compile_shader(struct si_screen *sscreen,
+ struct ac_llvm_compiler *compiler,
+ struct si_shader *shader,
+ struct pipe_debug_callback *debug)
{
struct si_shader_selector *sel = shader->selector;
struct si_shader_context ctx;
struct nir_shader *nir = get_nir_shader(sel, &free_nir);
int r = -1;
- /* Dump TGSI code before doing TGSI->LLVM conversion in case the
+ /* Dump NIR before doing NIR->LLVM conversion in case the
* conversion fails. */
if (si_can_dump_shader(sscreen, sel->type) &&
- !(sscreen->debug_flags & DBG(NO_TGSI))) {
- if (sel->tokens)
- tgsi_dump(sel->tokens, 0);
- else
- nir_print_shader(nir, stderr);
+ !(sscreen->debug_flags & DBG(NO_NIR))) {
+ nir_print_shader(nir, stderr);
si_dump_streamout(&sel->so);
}
- si_init_shader_ctx(&ctx, sscreen, compiler, si_get_shader_wave_size(shader),
- nir != NULL);
- si_llvm_context_set_ir(&ctx, shader, nir);
+ si_llvm_context_init(&ctx, sscreen, compiler, si_get_shader_wave_size(shader));
+ si_shader_context_set_ir(&ctx, shader);
memset(shader->info.vs_output_param_offset, AC_EXP_PARAM_UNDEFINED,
sizeof(shader->info.vs_output_param_offset));
shader->info.uses_instanceid = sel->info.uses_instanceid;
- if (!si_compile_tgsi_main(&ctx, nir, free_nir)) {
+ LLVMValueRef ngg_cull_main_fn = NULL;
+ if (ctx.shader->key.opt.ngg_culling) {
+ if (!si_build_main_function(&ctx, nir, false, true)) {
+ si_llvm_dispose(&ctx);
+ return -1;
+ }
+ ngg_cull_main_fn = ctx.main_fn;
+ ctx.main_fn = NULL;
+ /* Re-set the IR. */
+ si_shader_context_set_ir(&ctx, shader);
+ }
+
+ if (!si_build_main_function(&ctx, nir, free_nir, false)) {
si_llvm_dispose(&ctx);
return -1;
}
if (shader->is_monolithic && ctx.type == PIPE_SHADER_VERTEX) {
- LLVMValueRef parts[2];
- bool need_prolog = sel->vs_needs_prolog;
-
- parts[1] = ctx.main_fn;
+ LLVMValueRef parts[4];
+ unsigned num_parts = 0;
+ bool has_prolog = false;
+ LLVMValueRef main_fn = ctx.main_fn;
+
+ if (ngg_cull_main_fn) {
+ if (si_vs_needs_prolog(sel, &shader->key.part.vs.prolog,
+ &shader->key, true)) {
+ union si_shader_part_key prolog_key;
+ si_get_vs_prolog_key(&sel->info,
+ shader->info.num_input_sgprs,
+ true,
+ &shader->key.part.vs.prolog,
+ shader, &prolog_key);
+ prolog_key.vs_prolog.is_monolithic = true;
+ si_build_vs_prolog_function(&ctx, &prolog_key);
+ parts[num_parts++] = ctx.main_fn;
+ has_prolog = true;
+ }
+ parts[num_parts++] = ngg_cull_main_fn;
+ }
- if (need_prolog) {
+ if (si_vs_needs_prolog(sel, &shader->key.part.vs.prolog,
+ &shader->key, false)) {
union si_shader_part_key prolog_key;
si_get_vs_prolog_key(&sel->info,
shader->info.num_input_sgprs,
+ false,
&shader->key.part.vs.prolog,
shader, &prolog_key);
+ prolog_key.vs_prolog.is_monolithic = true;
si_build_vs_prolog_function(&ctx, &prolog_key);
- parts[0] = ctx.main_fn;
+ parts[num_parts++] = ctx.main_fn;
+ has_prolog = true;
}
+ parts[num_parts++] = main_fn;
- si_build_wrapper_function(&ctx, parts + !need_prolog,
- 1 + need_prolog, need_prolog, 0);
+ si_build_wrapper_function(&ctx, parts, num_parts,
+ has_prolog ? 1 : 0, 0);
if (ctx.shader->key.opt.vs_as_prim_discard_cs)
si_build_prim_discard_compute_shader(&ctx);
+ } else if (shader->is_monolithic && ctx.type == PIPE_SHADER_TESS_EVAL &&
+ ngg_cull_main_fn) {
+ LLVMValueRef parts[2];
+
+ parts[0] = ngg_cull_main_fn;
+ parts[1] = ctx.main_fn;
+
+ si_build_wrapper_function(&ctx, parts, 2, 0, 0);
} else if (shader->is_monolithic && ctx.type == PIPE_SHADER_TESS_CTRL) {
if (sscreen->info.chip_class >= GFX9) {
struct si_shader_selector *ls = shader->key.part.tcs.ls;
LLVMValueRef parts[4];
bool vs_needs_prolog =
- si_vs_needs_prolog(ls, &shader->key.part.tcs.ls_prolog);
+ si_vs_needs_prolog(ls, &shader->key.part.tcs.ls_prolog,
+ &shader->key, false);
/* TCS main part */
parts[2] = ctx.main_fn;
union si_shader_part_key tcs_epilog_key;
memset(&tcs_epilog_key, 0, sizeof(tcs_epilog_key));
tcs_epilog_key.tcs_epilog.states = shader->key.part.tcs.epilog;
- si_build_tcs_epilog_function(&ctx, &tcs_epilog_key);
+ si_llvm_build_tcs_epilog(&ctx, &tcs_epilog_key);
parts[3] = ctx.main_fn;
/* VS as LS main part */
shader_ls.key.mono = shader->key.mono;
shader_ls.key.opt = shader->key.opt;
shader_ls.is_monolithic = true;
- si_llvm_context_set_ir(&ctx, &shader_ls, nir);
+ si_shader_context_set_ir(&ctx, &shader_ls);
- if (!si_compile_tgsi_main(&ctx, nir, free_nir)) {
+ if (!si_build_main_function(&ctx, nir, free_nir, false)) {
si_llvm_dispose(&ctx);
return -1;
}
union si_shader_part_key vs_prolog_key;
si_get_vs_prolog_key(&ls->info,
shader_ls.info.num_input_sgprs,
+ false,
&shader->key.part.tcs.ls_prolog,
shader, &vs_prolog_key);
vs_prolog_key.vs_prolog.is_monolithic = true;
memset(&epilog_key, 0, sizeof(epilog_key));
epilog_key.tcs_epilog.states = shader->key.part.tcs.epilog;
- si_build_tcs_epilog_function(&ctx, &epilog_key);
+ si_llvm_build_tcs_epilog(&ctx, &epilog_key);
parts[1] = ctx.main_fn;
si_build_wrapper_function(&ctx, parts, 2, 0, 0);
gs_prolog_key.gs_prolog.states = shader->key.part.gs.prolog;
gs_prolog_key.gs_prolog.is_monolithic = true;
gs_prolog_key.gs_prolog.as_ngg = shader->key.as_ngg;
- si_build_gs_prolog_function(&ctx, &gs_prolog_key);
+ si_llvm_build_gs_prolog(&ctx, &gs_prolog_key);
gs_prolog = ctx.main_fn;
/* ES main part */
shader_es.key.mono = shader->key.mono;
shader_es.key.opt = shader->key.opt;
shader_es.is_monolithic = true;
- si_llvm_context_set_ir(&ctx, &shader_es, nir);
+ si_shader_context_set_ir(&ctx, &shader_es);
- if (!si_compile_tgsi_main(&ctx, nir, free_nir)) {
+ if (!si_build_main_function(&ctx, nir, free_nir, false)) {
si_llvm_dispose(&ctx);
return -1;
}
es_main = ctx.main_fn;
/* ES prolog */
- if (es->vs_needs_prolog) {
+ if (es->type == PIPE_SHADER_VERTEX &&
+ si_vs_needs_prolog(es, &shader->key.part.gs.vs_prolog,
+ &shader->key, false)) {
union si_shader_part_key vs_prolog_key;
si_get_vs_prolog_key(&es->info,
shader_es.info.num_input_sgprs,
+ false,
&shader->key.part.gs.vs_prolog,
shader, &vs_prolog_key);
vs_prolog_key.vs_prolog.is_monolithic = true;
memset(&prolog_key, 0, sizeof(prolog_key));
prolog_key.gs_prolog.states = shader->key.part.gs.prolog;
- si_build_gs_prolog_function(&ctx, &prolog_key);
+ si_llvm_build_gs_prolog(&ctx, &prolog_key);
parts[0] = ctx.main_fn;
si_build_wrapper_function(&ctx, parts, 2, 1, 0);
}
} else if (shader->is_monolithic && ctx.type == PIPE_SHADER_FRAGMENT) {
- LLVMValueRef parts[3];
- union si_shader_part_key prolog_key;
- union si_shader_part_key epilog_key;
- bool need_prolog;
-
- si_get_ps_prolog_key(shader, &prolog_key, false);
- need_prolog = si_need_ps_prolog(&prolog_key);
-
- parts[need_prolog ? 1 : 0] = ctx.main_fn;
-
- if (need_prolog) {
- si_build_ps_prolog_function(&ctx, &prolog_key);
- parts[0] = ctx.main_fn;
- }
-
- si_get_ps_epilog_key(shader, &epilog_key);
- si_build_ps_epilog_function(&ctx, &epilog_key);
- parts[need_prolog ? 2 : 1] = ctx.main_fn;
-
- si_build_wrapper_function(&ctx, parts, need_prolog ? 3 : 2,
- need_prolog ? 1 : 0, 0);
+ si_llvm_build_monolithic_ps(&ctx, shader);
}
si_llvm_optimize_module(&ctx);
/* Compile to bytecode. */
r = si_compile_llvm(sscreen, &shader->binary, &shader->config, compiler,
- ctx.ac.module, debug, ctx.type, ctx.ac.wave_size,
- si_get_shader_name(shader),
+ &ctx.ac, debug, ctx.type, si_get_shader_name(shader),
si_should_optimize_less(compiler, shader->selector));
si_llvm_dispose(&ctx);
if (r) {
}
/* Add the scratch offset to input SGPRs. */
- if (shader->config.scratch_bytes_per_wave && !is_merged_shader(&ctx))
+ if (shader->config.scratch_bytes_per_wave && !si_is_merged_shader(&ctx))
shader->info.num_input_sgprs += 1; /* scratch byte offset */
/* Calculate the number of fragment input VGPRs. */
}
struct si_shader_context ctx;
- si_init_shader_ctx(&ctx, sscreen, compiler,
- si_get_wave_size(sscreen, type, shader.key.as_ngg,
- shader.key.as_es),
- false);
+ si_llvm_context_init(&ctx, sscreen, compiler,
+ si_get_wave_size(sscreen, type, shader.key.as_ngg,
+ shader.key.as_es));
ctx.shader = &shader;
ctx.type = type;
si_llvm_optimize_module(&ctx);
if (si_compile_llvm(sscreen, &result->binary, &result->config, compiler,
- ctx.ac.module, debug, ctx.type, ctx.ac.wave_size,
- name, false)) {
+ &ctx.ac, debug, ctx.type, name, false)) {
FREE(result);
result = NULL;
goto out;
return result;
}
-static LLVMValueRef si_prolog_get_rw_buffers(struct si_shader_context *ctx)
-{
- LLVMValueRef ptr[2], list;
- bool merged_shader = is_merged_shader(ctx);
-
- ptr[0] = LLVMGetParam(ctx->main_fn, (merged_shader ? 8 : 0) + SI_SGPR_RW_BUFFERS);
- list = LLVMBuildIntToPtr(ctx->ac.builder, ptr[0],
- ac_array_in_const32_addr_space(ctx->v4i32), "");
- return list;
-}
-
/**
* Build the vertex shader prolog function.
*
LLVMValueRef ret, func;
int num_returns, i;
unsigned first_vs_vgpr = key->vs_prolog.num_merged_next_stage_vgprs;
- unsigned num_input_vgprs = key->vs_prolog.num_merged_next_stage_vgprs + 4;
+ unsigned num_input_vgprs = key->vs_prolog.num_merged_next_stage_vgprs + 4 +
+ (key->vs_prolog.has_ngg_cull_inputs ? 1 : 0);
struct ac_arg input_sgpr_param[key->vs_prolog.num_input_sgprs];
- struct ac_arg input_vgpr_param[9];
- LLVMValueRef input_vgprs[9];
+ struct ac_arg input_vgpr_param[13];
+ LLVMValueRef input_vgprs[13];
unsigned num_all_input_regs = key->vs_prolog.num_input_sgprs +
num_input_vgprs;
unsigned user_sgpr_base = key->vs_prolog.num_merged_next_stage_vgprs ? 8 : 0;
memset(&ctx->args, 0, sizeof(ctx->args));
/* 4 preloaded VGPRs + vertex load indices as prolog outputs */
- returns = alloca((num_all_input_regs + key->vs_prolog.last_input + 1) *
+ returns = alloca((num_all_input_regs + key->vs_prolog.num_inputs) *
sizeof(LLVMTypeRef));
num_returns = 0;
for (i = 0; i < key->vs_prolog.num_input_sgprs; i++) {
ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
&input_sgpr_param[i]);
- returns[num_returns++] = ctx->i32;
+ returns[num_returns++] = ctx->ac.i32;
}
struct ac_arg merged_wave_info = input_sgpr_param[3];
/* Preloaded VGPRs (outputs must be floats) */
for (i = 0; i < num_input_vgprs; i++) {
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &input_vgpr_param[i]);
- returns[num_returns++] = ctx->f32;
+ returns[num_returns++] = ctx->ac.f32;
}
/* Vertex load indices. */
- for (i = 0; i <= key->vs_prolog.last_input; i++)
- returns[num_returns++] = ctx->f32;
+ for (i = 0; i < key->vs_prolog.num_inputs; i++)
+ returns[num_returns++] = ctx->ac.f32;
/* Create the function. */
- si_create_function(ctx, "vs_prolog", returns, num_returns, 0);
+ si_llvm_create_func(ctx, "vs_prolog", returns, num_returns, 0);
func = ctx->main_fn;
for (i = 0; i < num_input_vgprs; i++) {
LLVMValueRef has_hs_threads =
LLVMBuildICmp(ctx->ac.builder, LLVMIntNE,
si_unpack_param(ctx, input_sgpr_param[3], 8, 8),
- ctx->i32_0, "");
+ ctx->ac.i32_0, "");
for (i = 4; i > 0; --i) {
input_vgprs[i + 1] =
}
}
+ if (key->vs_prolog.gs_fast_launch_tri_list ||
+ key->vs_prolog.gs_fast_launch_tri_strip) {
+ LLVMValueRef wave_id, thread_id_in_tg;
+
+ wave_id = si_unpack_param(ctx, input_sgpr_param[3], 24, 4);
+ thread_id_in_tg = ac_build_imad(&ctx->ac, wave_id,
+ LLVMConstInt(ctx->ac.i32, ctx->ac.wave_size, false),
+ ac_get_thread_id(&ctx->ac));
+
+ /* The GS fast launch initializes all VGPRs to the value of
+ * the first thread, so we have to add the thread ID.
+ *
+ * Only these are initialized by the hw:
+ * VGPR2: Base Primitive ID
+ * VGPR5: Base Vertex ID
+ * VGPR6: Instance ID
+ */
+
+ /* Put the vertex thread IDs into VGPRs as-is instead of packing them.
+ * The NGG cull shader will read them from there.
+ */
+ if (key->vs_prolog.gs_fast_launch_tri_list) {
+ input_vgprs[0] = ac_build_imad(&ctx->ac, thread_id_in_tg, /* gs_vtx01_offset */
+ LLVMConstInt(ctx->ac.i32, 3, 0), /* Vertex 0 */
+ LLVMConstInt(ctx->ac.i32, 0, 0));
+ input_vgprs[1] = ac_build_imad(&ctx->ac, thread_id_in_tg, /* gs_vtx23_offset */
+ LLVMConstInt(ctx->ac.i32, 3, 0), /* Vertex 1 */
+ LLVMConstInt(ctx->ac.i32, 1, 0));
+ input_vgprs[4] = ac_build_imad(&ctx->ac, thread_id_in_tg, /* gs_vtx45_offset */
+ LLVMConstInt(ctx->ac.i32, 3, 0), /* Vertex 2 */
+ LLVMConstInt(ctx->ac.i32, 2, 0));
+ } else {
+ assert(key->vs_prolog.gs_fast_launch_tri_strip);
+ LLVMBuilderRef builder = ctx->ac.builder;
+ /* Triangle indices: */
+ LLVMValueRef index[3] = {
+ thread_id_in_tg,
+ LLVMBuildAdd(builder, thread_id_in_tg,
+ LLVMConstInt(ctx->ac.i32, 1, 0), ""),
+ LLVMBuildAdd(builder, thread_id_in_tg,
+ LLVMConstInt(ctx->ac.i32, 2, 0), ""),
+ };
+ LLVMValueRef is_odd = LLVMBuildTrunc(ctx->ac.builder,
+ thread_id_in_tg, ctx->ac.i1, "");
+ LLVMValueRef flatshade_first =
+ LLVMBuildICmp(builder, LLVMIntEQ,
+ si_unpack_param(ctx, ctx->vs_state_bits, 4, 2),
+ ctx->ac.i32_0, "");
+
+ ac_build_triangle_strip_indices_to_triangle(&ctx->ac, is_odd,
+ flatshade_first, index);
+ input_vgprs[0] = index[0];
+ input_vgprs[1] = index[1];
+ input_vgprs[4] = index[2];
+ }
+
+ /* Triangles always have all edge flags set initially. */
+ input_vgprs[3] = LLVMConstInt(ctx->ac.i32, 0x7 << 8, 0);
+
+ input_vgprs[2] = LLVMBuildAdd(ctx->ac.builder, input_vgprs[2],
+ thread_id_in_tg, ""); /* PrimID */
+ input_vgprs[5] = LLVMBuildAdd(ctx->ac.builder, input_vgprs[5],
+ thread_id_in_tg, ""); /* VertexID */
+ input_vgprs[8] = input_vgprs[6]; /* InstanceID */
+ }
+
unsigned vertex_id_vgpr = first_vs_vgpr;
unsigned instance_id_vgpr =
ctx->screen->info.chip_class >= GFX10 ?
*/
if (key->vs_prolog.states.unpack_instance_id_from_vertex_id) {
ctx->abi.instance_id = LLVMBuildLShr(ctx->ac.builder, ctx->abi.vertex_id,
- LLVMConstInt(ctx->i32, 16, 0), "");
+ LLVMConstInt(ctx->ac.i32, 16, 0), "");
ctx->abi.vertex_id = LLVMBuildAnd(ctx->ac.builder, ctx->abi.vertex_id,
- LLVMConstInt(ctx->i32, 0xffff, 0), "");
+ LLVMConstInt(ctx->ac.i32, 0xffff, 0), "");
}
/* Copy inputs to outputs. This should be no-op, as the registers match,
key->vs_prolog.num_input_sgprs + i, "");
}
- LLVMValueRef original_ret = ret;
- bool wrapped = false;
- LLVMBasicBlockRef if_entry_block = NULL;
-
- if (key->vs_prolog.is_monolithic && key->vs_prolog.as_ngg) {
- LLVMValueRef num_threads;
- LLVMValueRef ena;
-
- num_threads = si_unpack_param(ctx, merged_wave_info, 0, 8);
- ena = LLVMBuildICmp(ctx->ac.builder, LLVMIntULT,
- ac_get_thread_id(&ctx->ac), num_threads, "");
- if_entry_block = LLVMGetInsertBlock(ctx->ac.builder);
- ac_build_ifcc(&ctx->ac, ena, 11501);
- wrapped = true;
- }
-
/* Compute vertex load indices from instance divisors. */
LLVMValueRef instance_divisor_constbuf = NULL;
if (key->vs_prolog.states.instance_divisor_is_fetched) {
LLVMValueRef list = si_prolog_get_rw_buffers(ctx);
LLVMValueRef buf_index =
- LLVMConstInt(ctx->i32, SI_VS_CONST_INSTANCE_DIVISORS, 0);
+ LLVMConstInt(ctx->ac.i32, SI_VS_CONST_INSTANCE_DIVISORS, 0);
instance_divisor_constbuf =
ac_build_load_to_sgpr(&ctx->ac, list, buf_index);
}
- for (i = 0; i <= key->vs_prolog.last_input; i++) {
+ for (i = 0; i < key->vs_prolog.num_inputs; i++) {
bool divisor_is_one =
key->vs_prolog.states.instance_divisor_is_one & (1u << i);
bool divisor_is_fetched =
for (unsigned j = 0; j < 4; j++) {
udiv_factors[j] =
- buffer_load_const(ctx, instance_divisor_constbuf,
- LLVMConstInt(ctx->i32, i*16 + j*4, 0));
+ si_buffer_load_const(ctx, instance_divisor_constbuf,
+ LLVMConstInt(ctx->ac.i32, i*16 + j*4, 0));
udiv_factors[j] = ac_to_integer(&ctx->ac, udiv_factors[j]);
}
/* The faster NUW version doesn't work when InstanceID == UINT_MAX.
index = LLVMBuildAdd(ctx->ac.builder,
ctx->abi.vertex_id,
LLVMGetParam(func, user_sgpr_base +
- SI_SGPR_BASE_VERTEX), "");
- }
-
- index = ac_to_float(&ctx->ac, index);
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret, index,
- ctx->args.arg_count + i, "");
- }
-
- if (wrapped) {
- LLVMBasicBlockRef bbs[2] = {
- LLVMGetInsertBlock(ctx->ac.builder),
- if_entry_block,
- };
- ac_build_endif(&ctx->ac, 11501);
-
- LLVMValueRef values[2] = {
- ret,
- original_ret
- };
- ret = ac_build_phi(&ctx->ac, LLVMTypeOf(ret), 2, values, bbs);
- }
-
- si_llvm_build_ret(ctx, ret);
-}
-
-static bool si_get_vs_prolog(struct si_screen *sscreen,
- struct ac_llvm_compiler *compiler,
- struct si_shader *shader,
- struct pipe_debug_callback *debug,
- struct si_shader *main_part,
- const struct si_vs_prolog_bits *key)
-{
- struct si_shader_selector *vs = main_part->selector;
-
- if (!si_vs_needs_prolog(vs, key))
- return true;
-
- /* Get the prolog. */
- union si_shader_part_key prolog_key;
- si_get_vs_prolog_key(&vs->info, main_part->info.num_input_sgprs,
- key, shader, &prolog_key);
-
- shader->prolog =
- si_get_shader_part(sscreen, &sscreen->vs_prologs,
- PIPE_SHADER_VERTEX, true, &prolog_key, compiler,
- debug, si_build_vs_prolog_function,
- "Vertex Shader Prolog");
- return shader->prolog != NULL;
-}
-
-/**
- * Select and compile (or reuse) vertex shader parts (prolog & epilog).
- */
-static bool si_shader_select_vs_parts(struct si_screen *sscreen,
- struct ac_llvm_compiler *compiler,
- struct si_shader *shader,
- struct pipe_debug_callback *debug)
-{
- return si_get_vs_prolog(sscreen, compiler, shader, debug, shader,
- &shader->key.part.vs.prolog);
-}
-
-/**
- * Compile the TCS epilog function. This writes tesselation factors to memory
- * based on the output primitive type of the tesselator (determined by TES).
- */
-static void si_build_tcs_epilog_function(struct si_shader_context *ctx,
- union si_shader_part_key *key)
-{
- struct lp_build_tgsi_context *bld_base = &ctx->bld_base;
-
- memset(&ctx->args, 0, sizeof(ctx->args));
-
- if (ctx->screen->info.chip_class >= GFX9) {
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->tcs_offchip_offset);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL); /* wave info */
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->tcs_factor_offset);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->tcs_offchip_layout);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->tcs_out_lds_layout);
- } else {
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->tcs_offchip_layout);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->tcs_out_lds_layout);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->tcs_offchip_offset);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->tcs_factor_offset);
+ SI_SGPR_BASE_VERTEX), "");
+ }
+
+ index = ac_to_float(&ctx->ac, index);
+ ret = LLVMBuildInsertValue(ctx->ac.builder, ret, index,
+ ctx->args.arg_count + i, "");
}
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, NULL); /* VGPR gap */
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, NULL); /* VGPR gap */
- struct ac_arg rel_patch_id; /* patch index within the wave (REL_PATCH_ID) */
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &rel_patch_id);
- struct ac_arg invocation_id; /* invocation ID within the patch */
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &invocation_id);
- struct ac_arg tcs_out_current_patch_data_offset; /* LDS offset where tess factors should be loaded from */
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
- &tcs_out_current_patch_data_offset);
+ si_llvm_build_ret(ctx, ret);
+}
- struct ac_arg tess_factors[6];
- for (unsigned i = 0; i < 6; i++)
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &tess_factors[i]);
+static bool si_get_vs_prolog(struct si_screen *sscreen,
+ struct ac_llvm_compiler *compiler,
+ struct si_shader *shader,
+ struct pipe_debug_callback *debug,
+ struct si_shader *main_part,
+ const struct si_vs_prolog_bits *key)
+{
+ struct si_shader_selector *vs = main_part->selector;
- /* Create the function. */
- si_create_function(ctx, "tcs_epilog", NULL, 0,
- ctx->screen->info.chip_class >= GFX7 ? 128 : 0);
- ac_declare_lds_as_pointer(&ctx->ac);
+ if (!si_vs_needs_prolog(vs, key, &shader->key, false))
+ return true;
- LLVMValueRef invoc0_tess_factors[6];
- for (unsigned i = 0; i < 6; i++)
- invoc0_tess_factors[i] = ac_get_arg(&ctx->ac, tess_factors[i]);
+ /* Get the prolog. */
+ union si_shader_part_key prolog_key;
+ si_get_vs_prolog_key(&vs->info, main_part->info.num_input_sgprs, false,
+ key, shader, &prolog_key);
- si_write_tess_factors(bld_base,
- ac_get_arg(&ctx->ac, rel_patch_id),
- ac_get_arg(&ctx->ac, invocation_id),
- ac_get_arg(&ctx->ac, tcs_out_current_patch_data_offset),
- invoc0_tess_factors, invoc0_tess_factors + 4);
+ shader->prolog =
+ si_get_shader_part(sscreen, &sscreen->vs_prologs,
+ PIPE_SHADER_VERTEX, true, &prolog_key, compiler,
+ debug, si_build_vs_prolog_function,
+ "Vertex Shader Prolog");
+ return shader->prolog != NULL;
+}
- LLVMBuildRetVoid(ctx->ac.builder);
+/**
+ * Select and compile (or reuse) vertex shader parts (prolog & epilog).
+ */
+static bool si_shader_select_vs_parts(struct si_screen *sscreen,
+ struct ac_llvm_compiler *compiler,
+ struct si_shader *shader,
+ struct pipe_debug_callback *debug)
+{
+ return si_get_vs_prolog(sscreen, compiler, shader, debug, shader,
+ &shader->key.part.vs.prolog);
}
/**
shader->epilog = si_get_shader_part(sscreen, &sscreen->tcs_epilogs,
PIPE_SHADER_TESS_CTRL, false,
&epilog_key, compiler, debug,
- si_build_tcs_epilog_function,
+ si_llvm_build_tcs_epilog,
"Tessellation Control Shader Epilog");
return shader->epilog != NULL;
}
shader->prolog2 = si_get_shader_part(sscreen, &sscreen->gs_prologs,
PIPE_SHADER_GEOMETRY, true,
&prolog_key, compiler, debug,
- si_build_gs_prolog_function,
+ si_llvm_build_gs_prolog,
"Geometry Shader Prolog");
return shader->prolog2 != NULL;
}
/**
- * Build the pixel shader prolog function. This handles:
- * - two-side color selection and interpolation
- * - overriding interpolation parameters for the API PS
- * - polygon stippling
- *
- * All preloaded SGPRs and VGPRs are passed through unmodified unless they are
- * overriden by other states. (e.g. per-sample interpolation)
- * Interpolated colors are stored after the preloaded VGPRs.
+ * Compute the PS prolog key, which contains all the information needed to
+ * build the PS prolog function, and set related bits in shader->config.
*/
-static void si_build_ps_prolog_function(struct si_shader_context *ctx,
- union si_shader_part_key *key)
+void si_get_ps_prolog_key(struct si_shader *shader,
+ union si_shader_part_key *key,
+ bool separate_prolog)
{
- LLVMValueRef ret, func;
- int num_returns, i, num_color_channels;
-
- assert(si_need_ps_prolog(key));
+ struct si_shader_info *info = &shader->selector->info;
- memset(&ctx->args, 0, sizeof(ctx->args));
-
- /* Declare inputs. */
- LLVMTypeRef return_types[AC_MAX_ARGS];
- num_returns = 0;
- num_color_channels = util_bitcount(key->ps_prolog.colors_read);
- assert(key->ps_prolog.num_input_sgprs +
- key->ps_prolog.num_input_vgprs +
- num_color_channels <= AC_MAX_ARGS);
- for (i = 0; i < key->ps_prolog.num_input_sgprs; i++) {
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, NULL);
- return_types[num_returns++] = ctx->i32;
+ memset(key, 0, sizeof(*key));
+ key->ps_prolog.states = shader->key.part.ps.prolog;
+ key->ps_prolog.colors_read = info->colors_read;
+ key->ps_prolog.num_input_sgprs = shader->info.num_input_sgprs;
+ key->ps_prolog.num_input_vgprs = shader->info.num_input_vgprs;
+ key->ps_prolog.wqm = info->uses_derivatives &&
+ (key->ps_prolog.colors_read ||
+ key->ps_prolog.states.force_persp_sample_interp ||
+ key->ps_prolog.states.force_linear_sample_interp ||
+ key->ps_prolog.states.force_persp_center_interp ||
+ key->ps_prolog.states.force_linear_center_interp ||
+ key->ps_prolog.states.bc_optimize_for_persp ||
+ key->ps_prolog.states.bc_optimize_for_linear);
+ key->ps_prolog.ancillary_vgpr_index = shader->info.ancillary_vgpr_index;
- }
+ if (info->colors_read) {
+ unsigned *color = shader->selector->color_attr_index;
- struct ac_arg pos_fixed_pt;
- struct ac_arg ancillary;
- struct ac_arg param_sample_mask;
- for (i = 0; i < key->ps_prolog.num_input_vgprs; i++) {
- struct ac_arg *arg = NULL;
- if (i == key->ps_prolog.ancillary_vgpr_index) {
- arg = &ancillary;
- } else if (i == key->ps_prolog.ancillary_vgpr_index + 1) {
- arg = ¶m_sample_mask;
- } else if (i == key->ps_prolog.num_input_vgprs - 1) {
- /* POS_FIXED_PT is always last. */
- arg = &pos_fixed_pt;
+ if (shader->key.part.ps.prolog.color_two_side) {
+ /* BCOLORs are stored after the last input. */
+ key->ps_prolog.num_interp_inputs = info->num_inputs;
+ key->ps_prolog.face_vgpr_index = shader->info.face_vgpr_index;
+ if (separate_prolog)
+ shader->config.spi_ps_input_ena |= S_0286CC_FRONT_FACE_ENA(1);
}
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT, arg);
- return_types[num_returns++] = ctx->f32;
- }
- /* Declare outputs (same as inputs + add colors if needed) */
- for (i = 0; i < num_color_channels; i++)
- return_types[num_returns++] = ctx->f32;
+ for (unsigned i = 0; i < 2; i++) {
+ unsigned interp = info->input_interpolate[color[i]];
+ unsigned location = info->input_interpolate_loc[color[i]];
- /* Create the function. */
- si_create_function(ctx, "ps_prolog", return_types, num_returns, 0);
- func = ctx->main_fn;
+ if (!(info->colors_read & (0xf << i*4)))
+ continue;
- /* Copy inputs to outputs. This should be no-op, as the registers match,
- * but it will prevent the compiler from overwriting them unintentionally.
- */
- ret = ctx->return_value;
- for (i = 0; i < ctx->args.arg_count; i++) {
- LLVMValueRef p = LLVMGetParam(func, i);
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret, p, i, "");
- }
+ key->ps_prolog.color_attr_index[i] = color[i];
- /* Polygon stippling. */
- if (key->ps_prolog.states.poly_stipple) {
- LLVMValueRef list = si_prolog_get_rw_buffers(ctx);
+ if (shader->key.part.ps.prolog.flatshade_colors &&
+ interp == TGSI_INTERPOLATE_COLOR)
+ interp = TGSI_INTERPOLATE_CONSTANT;
- si_llvm_emit_polygon_stipple(ctx, list, pos_fixed_pt);
- }
+ switch (interp) {
+ case TGSI_INTERPOLATE_CONSTANT:
+ key->ps_prolog.color_interp_vgpr_index[i] = -1;
+ break;
+ case TGSI_INTERPOLATE_PERSPECTIVE:
+ case TGSI_INTERPOLATE_COLOR:
+ /* Force the interpolation location for colors here. */
+ if (shader->key.part.ps.prolog.force_persp_sample_interp)
+ location = TGSI_INTERPOLATE_LOC_SAMPLE;
+ if (shader->key.part.ps.prolog.force_persp_center_interp)
+ location = TGSI_INTERPOLATE_LOC_CENTER;
- if (key->ps_prolog.states.bc_optimize_for_persp ||
- key->ps_prolog.states.bc_optimize_for_linear) {
- unsigned i, base = key->ps_prolog.num_input_sgprs;
- LLVMValueRef center[2], centroid[2], tmp, bc_optimize;
+ switch (location) {
+ case TGSI_INTERPOLATE_LOC_SAMPLE:
+ key->ps_prolog.color_interp_vgpr_index[i] = 0;
+ if (separate_prolog) {
+ shader->config.spi_ps_input_ena |=
+ S_0286CC_PERSP_SAMPLE_ENA(1);
+ }
+ break;
+ case TGSI_INTERPOLATE_LOC_CENTER:
+ key->ps_prolog.color_interp_vgpr_index[i] = 2;
+ if (separate_prolog) {
+ shader->config.spi_ps_input_ena |=
+ S_0286CC_PERSP_CENTER_ENA(1);
+ }
+ break;
+ case TGSI_INTERPOLATE_LOC_CENTROID:
+ key->ps_prolog.color_interp_vgpr_index[i] = 4;
+ if (separate_prolog) {
+ shader->config.spi_ps_input_ena |=
+ S_0286CC_PERSP_CENTROID_ENA(1);
+ }
+ break;
+ default:
+ assert(0);
+ }
+ break;
+ case TGSI_INTERPOLATE_LINEAR:
+ /* Force the interpolation location for colors here. */
+ if (shader->key.part.ps.prolog.force_linear_sample_interp)
+ location = TGSI_INTERPOLATE_LOC_SAMPLE;
+ if (shader->key.part.ps.prolog.force_linear_center_interp)
+ location = TGSI_INTERPOLATE_LOC_CENTER;
- /* The shader should do: if (PRIM_MASK[31]) CENTROID = CENTER;
- * The hw doesn't compute CENTROID if the whole wave only
- * contains fully-covered quads.
- *
- * PRIM_MASK is after user SGPRs.
- */
- bc_optimize = LLVMGetParam(func, SI_PS_NUM_USER_SGPR);
- bc_optimize = LLVMBuildLShr(ctx->ac.builder, bc_optimize,
- LLVMConstInt(ctx->i32, 31, 0), "");
- bc_optimize = LLVMBuildTrunc(ctx->ac.builder, bc_optimize,
- ctx->i1, "");
-
- if (key->ps_prolog.states.bc_optimize_for_persp) {
- /* Read PERSP_CENTER. */
- for (i = 0; i < 2; i++)
- center[i] = LLVMGetParam(func, base + 2 + i);
- /* Read PERSP_CENTROID. */
- for (i = 0; i < 2; i++)
- centroid[i] = LLVMGetParam(func, base + 4 + i);
- /* Select PERSP_CENTROID. */
- for (i = 0; i < 2; i++) {
- tmp = LLVMBuildSelect(ctx->ac.builder, bc_optimize,
- center[i], centroid[i], "");
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- tmp, base + 4 + i, "");
- }
- }
- if (key->ps_prolog.states.bc_optimize_for_linear) {
- /* Read LINEAR_CENTER. */
- for (i = 0; i < 2; i++)
- center[i] = LLVMGetParam(func, base + 8 + i);
- /* Read LINEAR_CENTROID. */
- for (i = 0; i < 2; i++)
- centroid[i] = LLVMGetParam(func, base + 10 + i);
- /* Select LINEAR_CENTROID. */
- for (i = 0; i < 2; i++) {
- tmp = LLVMBuildSelect(ctx->ac.builder, bc_optimize,
- center[i], centroid[i], "");
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- tmp, base + 10 + i, "");
+ /* The VGPR assignment for non-monolithic shaders
+ * works because InitialPSInputAddr is set on the
+ * main shader and PERSP_PULL_MODEL is never used.
+ */
+ switch (location) {
+ case TGSI_INTERPOLATE_LOC_SAMPLE:
+ key->ps_prolog.color_interp_vgpr_index[i] =
+ separate_prolog ? 6 : 9;
+ if (separate_prolog) {
+ shader->config.spi_ps_input_ena |=
+ S_0286CC_LINEAR_SAMPLE_ENA(1);
+ }
+ break;
+ case TGSI_INTERPOLATE_LOC_CENTER:
+ key->ps_prolog.color_interp_vgpr_index[i] =
+ separate_prolog ? 8 : 11;
+ if (separate_prolog) {
+ shader->config.spi_ps_input_ena |=
+ S_0286CC_LINEAR_CENTER_ENA(1);
+ }
+ break;
+ case TGSI_INTERPOLATE_LOC_CENTROID:
+ key->ps_prolog.color_interp_vgpr_index[i] =
+ separate_prolog ? 10 : 13;
+ if (separate_prolog) {
+ shader->config.spi_ps_input_ena |=
+ S_0286CC_LINEAR_CENTROID_ENA(1);
+ }
+ break;
+ default:
+ assert(0);
+ }
+ break;
+ default:
+ assert(0);
}
}
}
-
- /* Force per-sample interpolation. */
- if (key->ps_prolog.states.force_persp_sample_interp) {
- unsigned i, base = key->ps_prolog.num_input_sgprs;
- LLVMValueRef persp_sample[2];
-
- /* Read PERSP_SAMPLE. */
- for (i = 0; i < 2; i++)
- persp_sample[i] = LLVMGetParam(func, base + i);
- /* Overwrite PERSP_CENTER. */
- for (i = 0; i < 2; i++)
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- persp_sample[i], base + 2 + i, "");
- /* Overwrite PERSP_CENTROID. */
- for (i = 0; i < 2; i++)
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- persp_sample[i], base + 4 + i, "");
- }
- if (key->ps_prolog.states.force_linear_sample_interp) {
- unsigned i, base = key->ps_prolog.num_input_sgprs;
- LLVMValueRef linear_sample[2];
-
- /* Read LINEAR_SAMPLE. */
- for (i = 0; i < 2; i++)
- linear_sample[i] = LLVMGetParam(func, base + 6 + i);
- /* Overwrite LINEAR_CENTER. */
- for (i = 0; i < 2; i++)
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- linear_sample[i], base + 8 + i, "");
- /* Overwrite LINEAR_CENTROID. */
- for (i = 0; i < 2; i++)
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- linear_sample[i], base + 10 + i, "");
- }
-
- /* Force center interpolation. */
- if (key->ps_prolog.states.force_persp_center_interp) {
- unsigned i, base = key->ps_prolog.num_input_sgprs;
- LLVMValueRef persp_center[2];
-
- /* Read PERSP_CENTER. */
- for (i = 0; i < 2; i++)
- persp_center[i] = LLVMGetParam(func, base + 2 + i);
- /* Overwrite PERSP_SAMPLE. */
- for (i = 0; i < 2; i++)
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- persp_center[i], base + i, "");
- /* Overwrite PERSP_CENTROID. */
- for (i = 0; i < 2; i++)
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- persp_center[i], base + 4 + i, "");
- }
- if (key->ps_prolog.states.force_linear_center_interp) {
- unsigned i, base = key->ps_prolog.num_input_sgprs;
- LLVMValueRef linear_center[2];
-
- /* Read LINEAR_CENTER. */
- for (i = 0; i < 2; i++)
- linear_center[i] = LLVMGetParam(func, base + 8 + i);
- /* Overwrite LINEAR_SAMPLE. */
- for (i = 0; i < 2; i++)
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- linear_center[i], base + 6 + i, "");
- /* Overwrite LINEAR_CENTROID. */
- for (i = 0; i < 2; i++)
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret,
- linear_center[i], base + 10 + i, "");
- }
-
- /* Interpolate colors. */
- unsigned color_out_idx = 0;
- for (i = 0; i < 2; i++) {
- unsigned writemask = (key->ps_prolog.colors_read >> (i * 4)) & 0xf;
- unsigned face_vgpr = key->ps_prolog.num_input_sgprs +
- key->ps_prolog.face_vgpr_index;
- LLVMValueRef interp[2], color[4];
- LLVMValueRef interp_ij = NULL, prim_mask = NULL, face = NULL;
-
- if (!writemask)
- continue;
-
- /* If the interpolation qualifier is not CONSTANT (-1). */
- if (key->ps_prolog.color_interp_vgpr_index[i] != -1) {
- unsigned interp_vgpr = key->ps_prolog.num_input_sgprs +
- key->ps_prolog.color_interp_vgpr_index[i];
-
- /* Get the (i,j) updated by bc_optimize handling. */
- interp[0] = LLVMBuildExtractValue(ctx->ac.builder, ret,
- interp_vgpr, "");
- interp[1] = LLVMBuildExtractValue(ctx->ac.builder, ret,
- interp_vgpr + 1, "");
- interp_ij = ac_build_gather_values(&ctx->ac, interp, 2);
- }
-
- /* Use the absolute location of the input. */
- prim_mask = LLVMGetParam(func, SI_PS_NUM_USER_SGPR);
-
- if (key->ps_prolog.states.color_two_side) {
- face = LLVMGetParam(func, face_vgpr);
- face = ac_to_integer(&ctx->ac, face);
- }
-
- interp_fs_input(ctx,
- key->ps_prolog.color_attr_index[i],
- TGSI_SEMANTIC_COLOR, i,
- key->ps_prolog.num_interp_inputs,
- key->ps_prolog.colors_read, interp_ij,
- prim_mask, face, color);
-
- while (writemask) {
- unsigned chan = u_bit_scan(&writemask);
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret, color[chan],
- ctx->args.arg_count + color_out_idx++, "");
- }
- }
-
- /* Section 15.2.2 (Shader Inputs) of the OpenGL 4.5 (Core Profile) spec
- * says:
- *
- * "When per-sample shading is active due to the use of a fragment
- * input qualified by sample or due to the use of the gl_SampleID
- * or gl_SamplePosition variables, only the bit for the current
- * sample is set in gl_SampleMaskIn. When state specifies multiple
- * fragment shader invocations for a given fragment, the sample
- * mask for any single fragment shader invocation may specify a
- * subset of the covered samples for the fragment. In this case,
- * the bit corresponding to each covered sample will be set in
- * exactly one fragment shader invocation."
- *
- * The samplemask loaded by hardware is always the coverage of the
- * entire pixel/fragment, so mask bits out based on the sample ID.
- */
- if (key->ps_prolog.states.samplemask_log_ps_iter) {
- /* The bit pattern matches that used by fixed function fragment
- * processing. */
- static const uint16_t ps_iter_masks[] = {
- 0xffff, /* not used */
- 0x5555,
- 0x1111,
- 0x0101,
- 0x0001,
- };
- assert(key->ps_prolog.states.samplemask_log_ps_iter < ARRAY_SIZE(ps_iter_masks));
-
- uint32_t ps_iter_mask = ps_iter_masks[key->ps_prolog.states.samplemask_log_ps_iter];
- LLVMValueRef sampleid = si_unpack_param(ctx, ancillary, 8, 4);
- LLVMValueRef samplemask = ac_get_arg(&ctx->ac, param_sample_mask);
-
- samplemask = ac_to_integer(&ctx->ac, samplemask);
- samplemask = LLVMBuildAnd(
- ctx->ac.builder,
- samplemask,
- LLVMBuildShl(ctx->ac.builder,
- LLVMConstInt(ctx->i32, ps_iter_mask, false),
- sampleid, ""),
- "");
- samplemask = ac_to_float(&ctx->ac, samplemask);
-
- ret = LLVMBuildInsertValue(ctx->ac.builder, ret, samplemask,
- param_sample_mask.arg_index, "");
- }
-
- /* Tell LLVM to insert WQM instruction sequence when needed. */
- if (key->ps_prolog.wqm) {
- LLVMAddTargetDependentFunctionAttr(func,
- "amdgpu-ps-wqm-outputs", "");
- }
-
- si_llvm_build_ret(ctx, ret);
}
/**
- * Build the pixel shader epilog function. This handles everything that must be
- * emulated for pixel shader exports. (alpha-test, format conversions, etc)
+ * Check whether a PS prolog is required based on the key.
*/
-static void si_build_ps_epilog_function(struct si_shader_context *ctx,
- union si_shader_part_key *key)
+bool si_need_ps_prolog(const union si_shader_part_key *key)
{
- struct lp_build_tgsi_context *bld_base = &ctx->bld_base;
- LLVMValueRef depth = NULL, stencil = NULL, samplemask = NULL;
- int i;
- struct si_ps_exports exp = {};
-
- memset(&ctx->args, 0, sizeof(ctx->args));
-
- /* Declare input SGPRs. */
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT, &ctx->rw_buffers);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->bindless_samplers_and_images);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->const_and_shader_buffers);
- ac_add_arg(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_INT,
- &ctx->samplers_and_images);
- add_arg_checked(&ctx->args, AC_ARG_SGPR, 1, AC_ARG_FLOAT,
- NULL, SI_PARAM_ALPHA_REF);
-
- /* Declare input VGPRs. */
- unsigned required_num_params =
- ctx->args.num_sgprs_used +
- util_bitcount(key->ps_epilog.colors_written) * 4 +
- key->ps_epilog.writes_z +
- key->ps_epilog.writes_stencil +
- key->ps_epilog.writes_samplemask;
-
- required_num_params = MAX2(required_num_params,
- ctx->args.num_sgprs_used + PS_EPILOG_SAMPLEMASK_MIN_LOC + 1);
-
- while (ctx->args.arg_count < required_num_params)
- ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_FLOAT, NULL);
-
- /* Create the function. */
- si_create_function(ctx, "ps_epilog", NULL, 0, 0);
- /* Disable elimination of unused inputs. */
- ac_llvm_add_target_dep_function_attr(ctx->main_fn,
- "InitialPSInputAddr", 0xffffff);
-
- /* Process colors. */
- unsigned vgpr = ctx->args.num_sgprs_used;
- unsigned colors_written = key->ps_epilog.colors_written;
- int last_color_export = -1;
-
- /* Find the last color export. */
- if (!key->ps_epilog.writes_z &&
- !key->ps_epilog.writes_stencil &&
- !key->ps_epilog.writes_samplemask) {
- unsigned spi_format = key->ps_epilog.states.spi_shader_col_format;
-
- /* If last_cbuf > 0, FS_COLOR0_WRITES_ALL_CBUFS is true. */
- if (colors_written == 0x1 && key->ps_epilog.states.last_cbuf > 0) {
- /* Just set this if any of the colorbuffers are enabled. */
- if (spi_format &
- ((1ull << (4 * (key->ps_epilog.states.last_cbuf + 1))) - 1))
- last_color_export = 0;
- } else {
- for (i = 0; i < 8; i++)
- if (colors_written & (1 << i) &&
- (spi_format >> (i * 4)) & 0xf)
- last_color_export = i;
- }
- }
-
- while (colors_written) {
- LLVMValueRef color[4];
- int mrt = u_bit_scan(&colors_written);
-
- for (i = 0; i < 4; i++)
- color[i] = LLVMGetParam(ctx->main_fn, vgpr++);
-
- si_export_mrt_color(bld_base, color, mrt,
- ctx->args.arg_count - 1,
- mrt == last_color_export, &exp);
- }
-
- /* Process depth, stencil, samplemask. */
- if (key->ps_epilog.writes_z)
- depth = LLVMGetParam(ctx->main_fn, vgpr++);
- if (key->ps_epilog.writes_stencil)
- stencil = LLVMGetParam(ctx->main_fn, vgpr++);
- if (key->ps_epilog.writes_samplemask)
- samplemask = LLVMGetParam(ctx->main_fn, vgpr++);
-
- if (depth || stencil || samplemask)
- si_export_mrt_z(bld_base, depth, stencil, samplemask, &exp);
- else if (last_color_export == -1)
- ac_build_export_null(&ctx->ac);
-
- if (exp.num)
- si_emit_ps_exports(ctx, &exp);
+ return key->ps_prolog.colors_read ||
+ key->ps_prolog.states.force_persp_sample_interp ||
+ key->ps_prolog.states.force_linear_sample_interp ||
+ key->ps_prolog.states.force_persp_center_interp ||
+ key->ps_prolog.states.force_linear_center_interp ||
+ key->ps_prolog.states.bc_optimize_for_persp ||
+ key->ps_prolog.states.bc_optimize_for_linear ||
+ key->ps_prolog.states.poly_stipple ||
+ key->ps_prolog.states.samplemask_log_ps_iter;
+}
- /* Compile. */
- LLVMBuildRetVoid(ctx->ac.builder);
+/**
+ * Compute the PS epilog key, which contains all the information needed to
+ * build the PS epilog function.
+ */
+void si_get_ps_epilog_key(struct si_shader *shader,
+ union si_shader_part_key *key)
+{
+ struct si_shader_info *info = &shader->selector->info;
+ memset(key, 0, sizeof(*key));
+ key->ps_epilog.colors_written = info->colors_written;
+ key->ps_epilog.writes_z = info->writes_z;
+ key->ps_epilog.writes_stencil = info->writes_stencil;
+ key->ps_epilog.writes_samplemask = info->writes_samplemask;
+ key->ps_epilog.states = shader->key.part.ps.epilog;
}
/**
si_get_shader_part(sscreen, &sscreen->ps_prologs,
PIPE_SHADER_FRAGMENT, true,
&prolog_key, compiler, debug,
- si_build_ps_prolog_function,
+ si_llvm_build_ps_prolog,
"Fragment Shader Prolog");
if (!shader->prolog)
return false;
si_get_shader_part(sscreen, &sscreen->ps_epilogs,
PIPE_SHADER_FRAGMENT, false,
&epilog_key, compiler, debug,
- si_build_ps_epilog_function,
+ si_llvm_build_ps_epilog,
"Fragment Shader Epilog");
if (!shader->epilog)
return false;
*lds_size = MAX2(*lds_size, 8);
}
-static void si_fix_resource_usage(struct si_screen *sscreen,
- struct si_shader *shader)
+void si_fix_resource_usage(struct si_screen *sscreen, struct si_shader *shader)
{
unsigned min_sgprs = shader->info.num_input_sgprs + 2; /* VCC */
}
}
-bool si_shader_create(struct si_screen *sscreen, struct ac_llvm_compiler *compiler,
- struct si_shader *shader,
- struct pipe_debug_callback *debug)
+bool si_create_shader_variant(struct si_screen *sscreen,
+ struct ac_llvm_compiler *compiler,
+ struct si_shader *shader,
+ struct pipe_debug_callback *debug)
{
struct si_shader_selector *sel = shader->selector;
struct si_shader *mainp = *si_get_main_shader_part(sel, &shader->key);
/* Monolithic shader (compiled as a whole, has many variants,
* may take a long time to compile).
*/
- r = si_compile_tgsi_shader(sscreen, compiler, shader, debug);
+ r = si_compile_shader(sscreen, compiler, shader, debug);
if (r)
return false;
} else {
if (!mainp)
return false;
- /* Copy the compiled TGSI shader data over. */
+ /* Copy the compiled shader data over. */
shader->is_binary_shared = true;
shader->binary = mainp->binary;
shader->config = mainp->config;
return true;
}
+void si_shader_binary_clean(struct si_shader_binary *binary)
+{
+ free((void *)binary->elf_buffer);
+ binary->elf_buffer = NULL;
+
+ free(binary->llvm_ir_string);
+ binary->llvm_ir_string = NULL;
+}
+
void si_shader_destroy(struct si_shader *shader)
{
if (shader->scratch_bo)
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