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/*
* Copyright (c) 2017-2019 Lima Project
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
#include "util/u_memory.h"
#include "util/ralloc.h"
#include "util/u_debug.h"
#include "tgsi/tgsi_dump.h"
#include "compiler/nir/nir.h"
#include "nir/tgsi_to_nir.h"
#include "pipe/p_state.h"
#include "lima_screen.h"
#include "lima_context.h"
#include "lima_program.h"
#include "lima_bo.h"
#include "ir/lima_ir.h"
static const nir_shader_compiler_options vs_nir_options = {
.lower_ffma = true,
.lower_fpow = true,
.lower_ffract = true,
.lower_fdiv = true,
.lower_fsqrt = true,
.lower_sub = true,
.lower_flrp32 = true,
.lower_flrp64 = true,
.lower_ftrunc = true,
/* could be implemented by clamp */
.lower_fsat = true,
};
static const nir_shader_compiler_options fs_nir_options = {
.lower_fpow = true,
.lower_fdiv = true,
.lower_sub = true,
.lower_flrp32 = true,
.lower_flrp64 = true,
.lower_fsign = true,
};
const void *
lima_program_get_compiler_options(enum pipe_shader_type shader)
{
switch (shader) {
case PIPE_SHADER_VERTEX:
return &vs_nir_options;
case PIPE_SHADER_FRAGMENT:
return &fs_nir_options;
default:
return NULL;
}
}
static int
type_size(const struct glsl_type *type, bool bindless)
{
return glsl_count_attribute_slots(type, false);
}
static void
lima_program_optimize_vs_nir(struct nir_shader *s)
{
bool progress;
NIR_PASS_V(s, nir_lower_viewport_transform);
NIR_PASS_V(s, nir_lower_io, nir_var_all, type_size, 0);
NIR_PASS_V(s, nir_lower_regs_to_ssa);
NIR_PASS_V(s, nir_lower_load_const_to_scalar);
NIR_PASS_V(s, lima_nir_lower_uniform_to_scalar);
NIR_PASS_V(s, nir_lower_io_to_scalar,
nir_var_shader_in|nir_var_shader_out);
NIR_PASS_V(s, nir_lower_sincos);
do {
progress = false;
NIR_PASS_V(s, nir_lower_vars_to_ssa);
NIR_PASS(progress, s, nir_lower_alu_to_scalar, NULL);
NIR_PASS(progress, s, nir_lower_phis_to_scalar);
NIR_PASS(progress, s, nir_copy_prop);
NIR_PASS(progress, s, nir_opt_remove_phis);
NIR_PASS(progress, s, nir_opt_dce);
NIR_PASS(progress, s, nir_opt_dead_cf);
NIR_PASS(progress, s, nir_opt_cse);
NIR_PASS(progress, s, nir_opt_peephole_select, 8, true, true);
NIR_PASS(progress, s, nir_opt_algebraic);
NIR_PASS(progress, s, nir_opt_constant_folding);
NIR_PASS(progress, s, nir_opt_undef);
NIR_PASS(progress, s, nir_opt_loop_unroll,
nir_var_shader_in |
nir_var_shader_out |
nir_var_function_temp);
} while (progress);
NIR_PASS_V(s, nir_lower_int_to_float);
NIR_PASS_V(s, nir_copy_prop);
NIR_PASS_V(s, nir_lower_locals_to_regs);
NIR_PASS_V(s, nir_convert_from_ssa, true);
NIR_PASS_V(s, nir_remove_dead_variables, nir_var_function_temp);
nir_sweep(s);
}
static void
lima_program_optimize_fs_nir(struct nir_shader *s)
{
bool progress;
NIR_PASS_V(s, nir_lower_fragcoord_wtrans);
NIR_PASS_V(s, nir_lower_io, nir_var_all, type_size, 0);
NIR_PASS_V(s, nir_lower_regs_to_ssa);
do {
progress = false;
NIR_PASS_V(s, nir_lower_vars_to_ssa);
//NIR_PASS(progress, s, nir_lower_alu_to_scalar, NULL);
NIR_PASS(progress, s, nir_lower_phis_to_scalar);
NIR_PASS(progress, s, nir_copy_prop);
NIR_PASS(progress, s, nir_opt_remove_phis);
NIR_PASS(progress, s, nir_opt_dce);
NIR_PASS(progress, s, nir_opt_dead_cf);
NIR_PASS(progress, s, nir_opt_cse);
NIR_PASS(progress, s, nir_opt_peephole_select, 8, true, true);
NIR_PASS(progress, s, nir_opt_algebraic);
NIR_PASS(progress, s, nir_opt_constant_folding);
NIR_PASS(progress, s, nir_opt_undef);
NIR_PASS(progress, s, nir_opt_loop_unroll,
nir_var_shader_in |
nir_var_shader_out |
nir_var_function_temp);
} while (progress);
NIR_PASS_V(s, nir_lower_int_to_float);
/* Lower modifiers */
NIR_PASS_V(s, nir_lower_to_source_mods, nir_lower_all_source_mods);
NIR_PASS_V(s, nir_copy_prop);
NIR_PASS_V(s, nir_opt_dce);
NIR_PASS_V(s, nir_lower_locals_to_regs);
NIR_PASS_V(s, nir_convert_from_ssa, true);
NIR_PASS_V(s, nir_remove_dead_variables, nir_var_function_temp);
NIR_PASS_V(s, nir_move_vec_src_uses_to_dest);
NIR_PASS_V(s, nir_lower_vec_to_movs);
nir_sweep(s);
}
static void *
lima_create_fs_state(struct pipe_context *pctx,
const struct pipe_shader_state *cso)
{
struct lima_screen *screen = lima_screen(pctx->screen);
struct lima_fs_shader_state *so = rzalloc(NULL, struct lima_fs_shader_state);
if (!so)
return NULL;
nir_shader *nir;
if (cso->type == PIPE_SHADER_IR_NIR)
nir = cso->ir.nir;
else {
assert(cso->type == PIPE_SHADER_IR_TGSI);
nir = tgsi_to_nir(cso->tokens, pctx->screen);
}
lima_program_optimize_fs_nir(nir);
if (lima_debug & LIMA_DEBUG_PP)
nir_print_shader(nir, stdout);
if (!ppir_compile_nir(so, nir, screen->pp_ra)) {
ralloc_free(so);
return NULL;
}
return so;
}
static void
lima_bind_fs_state(struct pipe_context *pctx, void *hwcso)
{
struct lima_context *ctx = lima_context(pctx);
ctx->fs = hwcso;
ctx->dirty |= LIMA_CONTEXT_DIRTY_SHADER_FRAG;
}
static void
lima_delete_fs_state(struct pipe_context *pctx, void *hwcso)
{
struct lima_fs_shader_state *so = hwcso;
if (so->bo)
lima_bo_free(so->bo);
ralloc_free(so);
}
bool
lima_update_vs_state(struct lima_context *ctx)
{
struct lima_vs_shader_state *vs = ctx->vs;
if (!vs->bo) {
struct lima_screen *screen = lima_screen(ctx->base.screen);
vs->bo = lima_bo_create(screen, vs->shader_size, 0);
if (!vs->bo) {
fprintf(stderr, "lima: create vs shader bo fail\n");
return false;
}
memcpy(lima_bo_map(vs->bo), vs->shader, vs->shader_size);
ralloc_free(vs->shader);
vs->shader = NULL;
}
return true;
}
bool
lima_update_fs_state(struct lima_context *ctx)
{
struct lima_fs_shader_state *fs = ctx->fs;
if (!fs->bo) {
struct lima_screen *screen = lima_screen(ctx->base.screen);
fs->bo = lima_bo_create(screen, fs->shader_size, 0);
if (!fs->bo) {
fprintf(stderr, "lima: create fs shader bo fail\n");
return false;
}
memcpy(lima_bo_map(fs->bo), fs->shader, fs->shader_size);
ralloc_free(fs->shader);
fs->shader = NULL;
}
return true;
}
static void *
lima_create_vs_state(struct pipe_context *pctx,
const struct pipe_shader_state *cso)
{
struct lima_vs_shader_state *so = rzalloc(NULL, struct lima_vs_shader_state);
if (!so)
return NULL;
nir_shader *nir;
if (cso->type == PIPE_SHADER_IR_NIR)
nir = cso->ir.nir;
else {
assert(cso->type == PIPE_SHADER_IR_TGSI);
nir = tgsi_to_nir(cso->tokens, pctx->screen);
}
lima_program_optimize_vs_nir(nir);
if (lima_debug & LIMA_DEBUG_GP)
nir_print_shader(nir, stdout);
if (!gpir_compile_nir(so, nir)) {
ralloc_free(so);
return NULL;
}
return so;
}
static void
lima_bind_vs_state(struct pipe_context *pctx, void *hwcso)
{
struct lima_context *ctx = lima_context(pctx);
ctx->vs = hwcso;
ctx->dirty |= LIMA_CONTEXT_DIRTY_SHADER_VERT;
}
static void
lima_delete_vs_state(struct pipe_context *pctx, void *hwcso)
{
struct lima_vs_shader_state *so = hwcso;
if (so->bo)
lima_bo_free(so->bo);
ralloc_free(so);
}
void
lima_program_init(struct lima_context *ctx)
{
ctx->base.create_fs_state = lima_create_fs_state;
ctx->base.bind_fs_state = lima_bind_fs_state;
ctx->base.delete_fs_state = lima_delete_fs_state;
ctx->base.create_vs_state = lima_create_vs_state;
ctx->base.bind_vs_state = lima_bind_vs_state;
ctx->base.delete_vs_state = lima_delete_vs_state;
}
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