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/*
* Mesa 3-D graphics library
*
* Copyright (C) 2012-2013 LunarG, Inc.
*
* 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, sublicense,
* 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 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 NONINFRINGEMENT. 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.
*
* Authors:
* Chia-I Wu <olv@lunarg.com>
*/
#include "toy_compiler.h"
#include "toy_helpers.h"
#include "toy_legalize.h"
#include "toy_optimize.h"
#include "ilo_shader_internal.h"
struct cs_compile_context {
struct ilo_shader *shader;
const struct ilo_shader_variant *variant;
struct toy_compiler tc;
int first_free_grf;
int last_free_grf;
int num_grf_per_vrf;
int first_free_mrf;
int last_free_mrf;
};
/**
* Compile the shader.
*/
static bool
cs_compile(struct cs_compile_context *ccc)
{
struct toy_compiler *tc = &ccc->tc;
struct ilo_shader *sh = ccc->shader;
toy_compiler_legalize_for_ra(tc);
toy_compiler_optimize(tc);
toy_compiler_allocate_registers(tc,
ccc->first_free_grf,
ccc->last_free_grf,
ccc->num_grf_per_vrf);
toy_compiler_legalize_for_asm(tc);
if (tc->fail) {
ilo_err("failed to legalize FS instructions: %s\n", tc->reason);
return false;
}
if (ilo_debug & ILO_DEBUG_CS) {
ilo_printf("legalized instructions:\n");
toy_compiler_dump(tc);
ilo_printf("\n");
}
if (true) {
sh->kernel = toy_compiler_assemble(tc, &sh->kernel_size);
} else {
static const uint32_t microcode[] = {
/* fill in the microcode here */
0x0, 0x0, 0x0, 0x0,
};
const bool swap = true;
sh->kernel_size = sizeof(microcode);
sh->kernel = MALLOC(sh->kernel_size);
if (sh->kernel) {
const int num_dwords = sizeof(microcode) / 4;
const uint32_t *src = microcode;
uint32_t *dst = (uint32_t *) sh->kernel;
int i;
for (i = 0; i < num_dwords; i += 4) {
if (swap) {
dst[i + 0] = src[i + 3];
dst[i + 1] = src[i + 2];
dst[i + 2] = src[i + 1];
dst[i + 3] = src[i + 0];
}
else {
memcpy(dst, src, 16);
}
}
}
}
if (!sh->kernel) {
ilo_err("failed to compile CS: %s\n", tc->reason);
return false;
}
if (ilo_debug & ILO_DEBUG_CS) {
ilo_printf("disassembly:\n");
toy_compiler_disassemble(tc->dev, sh->kernel, sh->kernel_size, false);
ilo_printf("\n");
}
return true;
}
static void
cs_dummy(struct cs_compile_context *ccc)
{
struct toy_compiler *tc = &ccc->tc;
struct toy_dst header;
struct toy_src r0, desc;
struct toy_inst *inst;
header = tdst_ud(tdst(TOY_FILE_MRF, ccc->first_free_mrf, 0));
r0 = tsrc_ud(tsrc(TOY_FILE_GRF, 0, 0));
inst = tc_MOV(tc, header, r0);
inst->exec_size = GEN6_EXECSIZE_8;
inst->mask_ctrl = GEN6_MASKCTRL_NOMASK;
desc = tsrc_imm_mdesc(tc, true, 1, 0, true,
GEN6_MSG_TS_RESOURCE_SELECT_NO_DEREF |
GEN6_MSG_TS_REQUESTER_TYPE_ROOT |
GEN6_MSG_TS_OPCODE_DEREF);
tc_SEND(tc, tdst_null(), tsrc_from(header), desc, GEN6_SFID_SPAWNER);
}
static bool
cs_setup(struct cs_compile_context *ccc,
const struct ilo_shader_state *state,
const struct ilo_shader_variant *variant)
{
memset(ccc, 0, sizeof(*ccc));
ccc->shader = CALLOC_STRUCT(ilo_shader);
if (!ccc->shader)
return false;
ccc->variant = variant;
toy_compiler_init(&ccc->tc, state->info.dev);
ccc->tc.templ.access_mode = GEN6_ALIGN_1;
ccc->tc.templ.qtr_ctrl = GEN6_QTRCTRL_1H;
ccc->tc.templ.exec_size = GEN6_EXECSIZE_16;
ccc->tc.rect_linear_width = 8;
ccc->first_free_grf = 1;
ccc->last_free_grf = 127;
/* m0 is reserved for system routines */
ccc->first_free_mrf = 1;
ccc->last_free_mrf = 15;
/* instructions are compressed with GEN6_EXECSIZE_16 */
ccc->num_grf_per_vrf = 2;
if (ilo_dev_gen(ccc->tc.dev) >= ILO_GEN(7)) {
ccc->last_free_grf -= 15;
ccc->first_free_mrf = ccc->last_free_grf + 1;
ccc->last_free_mrf = ccc->first_free_mrf + 14;
}
ccc->shader->in.start_grf = 1;
ccc->shader->dispatch_16 = true;
/* INPUT */
ccc->shader->bt.const_base = 0;
ccc->shader->bt.const_count = 1;
/* a GLOBAL */
ccc->shader->bt.global_base = 1;
ccc->shader->bt.global_count = 1;
ccc->shader->bt.total_count = 2;
return true;
}
/**
* Compile the compute shader.
*/
struct ilo_shader *
ilo_shader_compile_cs(const struct ilo_shader_state *state,
const struct ilo_shader_variant *variant)
{
struct cs_compile_context ccc;
ILO_DEV_ASSERT(state->info.dev, 7, 7.5);
if (!cs_setup(&ccc, state, variant))
return NULL;
cs_dummy(&ccc);
if (!cs_compile(&ccc)) {
FREE(ccc.shader);
ccc.shader = NULL;
}
toy_compiler_cleanup(&ccc.tc);
return ccc.shader;
}
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